Siwan, Bihar, India Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
September Air Quality Analysis
Siwan, Bihar, India
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
27th Sep 2023
223AQILowest AQI recorded on
23rd Sep 2023
41AQISame Day Analysis (25th September):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 108 of Poor air quality, showing improvement over 2023 on the same day.
Day & Night AQI Trend: 24th Sep - 25th Sep 2026
Siwan, Bihar, India
AQI
Day
Night
.
5 AM24th Sep 2026
6 PM
4 AM25th Sep 2026
Day time
Avg. Highest Time
5PM24th Sep
135AQI
Avg. Lowest Time
9AM24th Sep
97AQI
Night time
Avg. Highest Time
2AM25th Sep
146AQI
Avg. Lowest Time
9PM24th Sep
111AQI
In the last 24 hours,
Siwan's AQI reached its highest point of 146 at 2 AM during the Night, while the lowest point, 97, was recorded at 9 AM during the Day between 24th Sep and 25th Sep 2026.
Day & Night AQI Trend : Aug - Sep 2026
Siwan, Bihar, India
AugSep
27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th
Day
Night
27th Aug 20261615 AMAQI
27th Aug 20261596 AMAQI
27th Aug 20261607 AMAQI
27th Aug 20261588 AMAQI
27th Aug 20261609 AMAQI
27th Aug 202611010 AMAQI
27th Aug 202611011 AMAQI
27th Aug 202610212 PMAQI
27th Aug 20261061 PMAQI
27th Aug 20261022 PMAQI
27th Aug 20261053 PMAQI
27th Aug 20261094 PMAQI
27th Aug 20261385 PMAQI
27th Aug 20261606 PMAQI
27th Aug 20261617 PMAQI
27th Aug 20261618 PMAQI
27th Aug 20261629 PMAQI
27th Aug 202615810 PMAQI
27th Aug 202616011 PMAQI
28th Aug 202615912 AMAQI
28th Aug 20261581 AMAQI
28th Aug 20261602 AMAQI
28th Aug 20261583 AMAQI
28th Aug 20261584 AMAQI
31°C27/35°C
28th Aug 20261585 AMAQI
28th Aug 20261606 AMAQI
28th Aug 20261607 AMAQI
28th Aug 20261608 AMAQI
28th Aug 20261579 AMAQI
28th Aug 202613410 AMAQI
28th Aug 202615811 AMAQI
28th Aug 202616112 PMAQI
28th Aug 20261581 PMAQI
28th Aug 20261622 PMAQI
28th Aug 20261583 PMAQI
28th Aug 20261584 PMAQI
28th Aug 20261605 PMAQI
28th Aug 20261606 PMAQI
28th Aug 20261597 PMAQI
28th Aug 20261588 PMAQI
28th Aug 20261609 PMAQI
28th Aug 202615810 PMAQI
28th Aug 202615811 PMAQI
29th Aug 202615812 AMAQI
29th Aug 20261591 AMAQI
29th Aug 20261602 AMAQI
29th Aug 20261583 AMAQI
29th Aug 20261614 AMAQI
31°C28/35°C
29th Aug 20261585 AMAQI
29th Aug 20261586 AMAQI
29th Aug 20261617 AMAQI
29th Aug 20261588 AMAQI
29th Aug 20261599 AMAQI
29th Aug 202613010 AMAQI
29th Aug 202616011 AMAQI
29th Aug 202615812 PMAQI
29th Aug 20261621 PMAQI
29th Aug 20261582 PMAQI
29th Aug 20261603 PMAQI
29th Aug 20261584 PMAQI
29th Aug 20261585 PMAQI
29th Aug 20261626 PMAQI
29th Aug 20261587 PMAQI
29th Aug 20261578 PMAQI
29th Aug 20261569 PMAQI
29th Aug 202616010 PMAQI
29th Aug 202615811 PMAQI
30th Aug 202615812 AMAQI
30th Aug 20261571 AMAQI
30th Aug 20261562 AMAQI
30th Aug 20261573 AMAQI
30th Aug 20261584 AMAQI
30°C28/33°C
30th Aug 20261595 AMAQI
30th Aug 20261576 AMAQI
30th Aug 20261587 AMAQI
30th Aug 20261588 AMAQI
30th Aug 20261589 AMAQI
30th Aug 20268410 AMAQI
30th Aug 202612211 AMAQI
30th Aug 202616012 PMAQI
30th Aug 20261581 PMAQI
30th Aug 20261602 PMAQI
30th Aug 20261563 PMAQI
30th Aug 20261574 PMAQI
30th Aug 20261605 PMAQI
30th Aug 20261586 PMAQI
30th Aug 20261587 PMAQI
30th Aug 20261598 PMAQI
30th Aug 20261599 PMAQI
30th Aug 202615810 PMAQI
30th Aug 202615811 PMAQI
31st Aug 202616112 AMAQI
31st Aug 20261601 AMAQI
31st Aug 20261592 AMAQI
31st Aug 20261583 AMAQI
31st Aug 20261584 AMAQI
31°C28/35°C
31st Aug 20261605 AMAQI
31st Aug 20261596 AMAQI
31st Aug 20261587 AMAQI
31st Aug 20261598 AMAQI
31st Aug 20261589 AMAQI
31st Aug 20269610 AMAQI
31st Aug 20269411 AMAQI
31st Aug 202612312 PMAQI
31st Aug 20261601 PMAQI
31st Aug 20261582 PMAQI
31st Aug 20261603 PMAQI
31st Aug 20261604 PMAQI
31st Aug 20261575 PMAQI
31st Aug 20261586 PMAQI
31st Aug 20261587 PMAQI
31st Aug 20261618 PMAQI
31st Aug 20261629 PMAQI
31st Aug 202616010 PMAQI
31st Aug 202616111 PMAQI
1st Sep 202615612 AMAQI
1st Sep 20261601 AMAQI
1st Sep 20261572 AMAQI
1st Sep 20261583 AMAQI
1st Sep 20261564 AMAQI
27°C26/30°C
1st Sep 20261595 AMAQI
1st Sep 20261616 AMAQI
1st Sep 20261627 AMAQI
1st Sep 20261608 AMAQI
1st Sep 20261629 AMAQI
1st Sep 202611310 AMAQI
1st Sep 202615811 AMAQI
1st Sep 202616012 PMAQI
1st Sep 20261601 PMAQI
1st Sep 20261572 PMAQI
1st Sep 20261603 PMAQI
1st Sep 20261594 PMAQI
1st Sep 20261585 PMAQI
1st Sep 20261606 PMAQI
1st Sep 20261617 PMAQI
1st Sep 20261588 PMAQI
1st Sep 20261589 PMAQI
1st Sep 202615610 PMAQI
1st Sep 202615611 PMAQI
2nd Sep 202615612 AMAQI
2nd Sep 20261531 AMAQI
2nd Sep 20261542 AMAQI
2nd Sep 20261523 AMAQI
2nd Sep 20261524 AMAQI
29°C26/31°C
2nd Sep 20261475 AMAQI
2nd Sep 20261506 AMAQI
2nd Sep 20261467 AMAQI
2nd Sep 20261528 AMAQI
2nd Sep 20261509 AMAQI
2nd Sep 202610710 AMAQI
2nd Sep 202613911 AMAQI
2nd Sep 202613912 PMAQI
2nd Sep 20261251 PMAQI
2nd Sep 20261252 PMAQI
2nd Sep 20261283 PMAQI
2nd Sep 20261254 PMAQI
2nd Sep 20261255 PMAQI
2nd Sep 20261296 PMAQI
2nd Sep 20261307 PMAQI
2nd Sep 20261228 PMAQI
2nd Sep 20261289 PMAQI
2nd Sep 202612010 PMAQI
2nd Sep 202612211 PMAQI
3rd Sep 202612812 AMAQI
3rd Sep 20261211 AMAQI
3rd Sep 20261292 AMAQI
3rd Sep 20261243 AMAQI
3rd Sep 20261144 AMAQI
26°C25/28°C
3rd Sep 20261145 AMAQI
3rd Sep 20261166 AMAQI
3rd Sep 20261087 AMAQI
3rd Sep 20261158 AMAQI
3rd Sep 20261169 AMAQI
3rd Sep 202610410 AMAQI
3rd Sep 202611511 AMAQI
3rd Sep 202611912 PMAQI
3rd Sep 20261181 PMAQI
3rd Sep 20261152 PMAQI
3rd Sep 20261163 PMAQI
3rd Sep 20261154 PMAQI
3rd Sep 20261255 PMAQI
3rd Sep 20261226 PMAQI
3rd Sep 20261287 PMAQI
3rd Sep 20261228 PMAQI
3rd Sep 20261219 PMAQI
3rd Sep 202612110 PMAQI
3rd Sep 202613211 PMAQI
4th Sep 202613212 AMAQI
4th Sep 20261381 AMAQI
4th Sep 20261292 AMAQI
4th Sep 20261463 AMAQI
4th Sep 20261324 AMAQI
28°C25/32°C
4th Sep 20261345 AMAQI
4th Sep 20261286 AMAQI
4th Sep 20261417 AMAQI
4th Sep 20261448 AMAQI
4th Sep 20261319 AMAQI
4th Sep 202612410 AMAQI
4th Sep 202613211 AMAQI
4th Sep 202614212 PMAQI
4th Sep 20261311 PMAQI
4th Sep 20261302 PMAQI
4th Sep 20261423 PMAQI
4th Sep 20261354 PMAQI
4th Sep 20261405 PMAQI
4th Sep 20261316 PMAQI
4th Sep 20261327 PMAQI
4th Sep 20261258 PMAQI
4th Sep 20261389 PMAQI
4th Sep 202613510 PMAQI
4th Sep 202613511 PMAQI
5th Sep 202613012 AMAQI
5th Sep 20261401 AMAQI
5th Sep 20261262 AMAQI
5th Sep 20261223 AMAQI
5th Sep 20261424 AMAQI
29°C25/32°C
5th Sep 20261385 AMAQI
5th Sep 20261356 AMAQI
5th Sep 20261457 AMAQI
5th Sep 20261458 AMAQI
5th Sep 20261459 AMAQI
5th Sep 202614610 AMAQI
5th Sep 202613711 AMAQI
5th Sep 202613512 PMAQI
5th Sep 20261401 PMAQI
5th Sep 20261512 PMAQI
5th Sep 20261563 PMAQI
5th Sep 20261574 PMAQI
5th Sep 20261585 PMAQI
5th Sep 20261546 PMAQI
5th Sep 20261607 PMAQI
5th Sep 20261588 PMAQI
5th Sep 20261579 PMAQI
5th Sep 202615510 PMAQI
5th Sep 202615811 PMAQI
6th Sep 202615512 AMAQI
6th Sep 20261591 AMAQI
6th Sep 20261542 AMAQI
6th Sep 20261573 AMAQI
6th Sep 20261544 AMAQI
29°C26/32°C
6th Sep 20261525 AMAQI
6th Sep 20261516 AMAQI
6th Sep 20261517 AMAQI
6th Sep 20261538 AMAQI
6th Sep 20261589 AMAQI
6th Sep 202615010 AMAQI
6th Sep 202615511 AMAQI
6th Sep 202615612 PMAQI
6th Sep 20261531 PMAQI
6th Sep 20261542 PMAQI
6th Sep 20261553 PMAQI
6th Sep 20261564 PMAQI
6th Sep 20261585 PMAQI
6th Sep 20261576 PMAQI
6th Sep 20261587 PMAQI
6th Sep 20261688 PMAQI
6th Sep 20261589 PMAQI
6th Sep 202615610 PMAQI
6th Sep 202616011 PMAQI
7th Sep 202615612 AMAQI
7th Sep 20261201 AMAQI
7th Sep 20261062 AMAQI
7th Sep 2026973 AMAQI
7th Sep 2026924 AMAQI
30°C27/33°C
7th Sep 20261015 AMAQI
7th Sep 20261006 AMAQI
7th Sep 20261097 AMAQI
7th Sep 20261308 AMAQI
7th Sep 20261269 AMAQI
7th Sep 202612810 AMAQI
7th Sep 202610211 AMAQI
7th Sep 20269312 PMAQI
7th Sep 20261021 PMAQI
7th Sep 2026942 PMAQI
7th Sep 2026953 PMAQI
7th Sep 20261024 PMAQI
7th Sep 2026975 PMAQI
7th Sep 2026976 PMAQI
7th Sep 20261097 PMAQI
7th Sep 20261328 PMAQI
7th Sep 20261159 PMAQI
7th Sep 202611510 PMAQI
7th Sep 202611211 PMAQI
8th Sep 202611212 AMAQI
8th Sep 20261221 AMAQI
8th Sep 20261082 AMAQI
8th Sep 20261163 AMAQI
8th Sep 2026924 AMAQI
30°C27/33°C
8th Sep 2026815 AMAQI
8th Sep 2026746 AMAQI
8th Sep 2026827 AMAQI
8th Sep 20261048 AMAQI
8th Sep 20261169 AMAQI
8th Sep 202612510 AMAQI
8th Sep 202614211 AMAQI
8th Sep 202613412 PMAQI
8th Sep 20261291 PMAQI
8th Sep 20261282 PMAQI
8th Sep 20261303 PMAQI
8th Sep 20261264 PMAQI
8th Sep 20261215 PMAQI
8th Sep 20261426 PMAQI
8th Sep 20261347 PMAQI
8th Sep 20261518 PMAQI
8th Sep 20261349 PMAQI
8th Sep 202613510 PMAQI
8th Sep 202613411 PMAQI
9th Sep 202614012 AMAQI
9th Sep 20261251 AMAQI
9th Sep 20261352 AMAQI
9th Sep 20261343 AMAQI
9th Sep 20261324 AMAQI
30°C27/33°C
9th Sep 20261285 AMAQI
9th Sep 20261216 AMAQI
9th Sep 20261297 AMAQI
9th Sep 20261368 AMAQI
9th Sep 20261489 AMAQI
9th Sep 202613610 AMAQI
9th Sep 202614611 AMAQI
9th Sep 202615212 PMAQI
9th Sep 20261501 PMAQI
9th Sep 20261462 PMAQI
9th Sep 20261383 PMAQI
9th Sep 20261394 PMAQI
9th Sep 20261315 PMAQI
9th Sep 20261216 PMAQI
9th Sep 20261457 PMAQI
9th Sep 20261478 PMAQI
9th Sep 20261309 PMAQI
9th Sep 202613110 PMAQI
9th Sep 202612811 PMAQI
10th Sep 202614012 AMAQI
10th Sep 20261441 AMAQI
10th Sep 20261322 AMAQI
10th Sep 20261283 AMAQI
10th Sep 20261304 AMAQI
30°C27/35°C
10th Sep 20261325 AMAQI
10th Sep 20261316 AMAQI
10th Sep 20261327 AMAQI
10th Sep 20261388 AMAQI
10th Sep 20261509 AMAQI
10th Sep 202611810 AMAQI
10th Sep 202613711 AMAQI
10th Sep 202613812 PMAQI
10th Sep 20261381 PMAQI
10th Sep 20261342 PMAQI
10th Sep 20261383 PMAQI
10th Sep 20261354 PMAQI
10th Sep 20261425 PMAQI
10th Sep 20261316 PMAQI
10th Sep 20261327 PMAQI
10th Sep 20261398 PMAQI
10th Sep 20261249 PMAQI
10th Sep 202611810 PMAQI
10th Sep 202612411 PMAQI
11th Sep 202611612 AMAQI
11th Sep 20261161 AMAQI
11th Sep 20261112 AMAQI
11th Sep 20261183 AMAQI
11th Sep 20261104 AMAQI
30°C26/34°C
11th Sep 2026995 AMAQI
11th Sep 2026976 AMAQI
11th Sep 20261127 AMAQI
11th Sep 20261058 AMAQI
11th Sep 20261069 AMAQI
11th Sep 20264510 AMAQI
11th Sep 20267811 AMAQI
11th Sep 202610212 PMAQI
11th Sep 20261141 PMAQI
11th Sep 20261122 PMAQI
11th Sep 20261053 PMAQI
11th Sep 20261114 PMAQI
11th Sep 20261125 PMAQI
11th Sep 20261086 PMAQI
11th Sep 20261297 PMAQI
11th Sep 20261368 PMAQI
11th Sep 20261149 PMAQI
11th Sep 202610010 PMAQI
11th Sep 202610811 PMAQI
12th Sep 202611512 AMAQI
12th Sep 2026641 AMAQI
12th Sep 2026752 AMAQI
12th Sep 2026663 AMAQI
12th Sep 2026554 AMAQI
30°C27/34°C
12th Sep 2026585 AMAQI
12th Sep 2026686 AMAQI
12th Sep 2026717 AMAQI
12th Sep 2026698 AMAQI
12th Sep 2026709 AMAQI
12th Sep 20267610 AMAQI
12th Sep 20267011 AMAQI
12th Sep 202610212 PMAQI
12th Sep 20261221 PMAQI
12th Sep 20261282 PMAQI
12th Sep 20261283 PMAQI
12th Sep 20261264 PMAQI
12th Sep 20261385 PMAQI
12th Sep 20261396 PMAQI
12th Sep 20261307 PMAQI
12th Sep 20261008 PMAQI
12th Sep 2026929 PMAQI
12th Sep 20269010 PMAQI
12th Sep 20268711 PMAQI
13th Sep 20268812 AMAQI
13th Sep 2026861 AMAQI
13th Sep 2026843 AMAQI
13th Sep 2026924 AMAQI
30°C26/34°C
13th Sep 2026965 AMAQI
13th Sep 2026956 AMAQI
13th Sep 20261047 AMAQI
13th Sep 20261148 AMAQI
13th Sep 20261029 AMAQI
13th Sep 202611010 AMAQI
13th Sep 202611611 AMAQI
13th Sep 202611212 PMAQI
13th Sep 2026911 PMAQI
13th Sep 2026812 PMAQI
13th Sep 2026863 PMAQI
13th Sep 2026924 PMAQI
13th Sep 2026925 PMAQI
13th Sep 2026846 PMAQI
13th Sep 2026907 PMAQI
13th Sep 2026888 PMAQI
13th Sep 2026819 PMAQI
13th Sep 20269210 PMAQI
13th Sep 20268311 PMAQI
14th Sep 20268412 AMAQI
14th Sep 2026861 AMAQI
14th Sep 2026862 AMAQI
14th Sep 2026853 AMAQI
14th Sep 2026904 AMAQI
30°C26/34°C
14th Sep 2026805 AMAQI
14th Sep 2026846 AMAQI
14th Sep 2026887 AMAQI
14th Sep 20261218 AMAQI
14th Sep 20261269 AMAQI
14th Sep 202610810 AMAQI
14th Sep 20268411 AMAQI
14th Sep 20268612 PMAQI
14th Sep 2026941 PMAQI
14th Sep 2026872 PMAQI
14th Sep 2026833 PMAQI
14th Sep 2026844 PMAQI
14th Sep 2026845 PMAQI
14th Sep 2026906 PMAQI
14th Sep 2026967 PMAQI
14th Sep 2026908 PMAQI
14th Sep 2026869 PMAQI
14th Sep 20268710 PMAQI
14th Sep 20268511 PMAQI
15th Sep 20268812 AMAQI
15th Sep 20261041 AMAQI
15th Sep 20261092 AMAQI
15th Sep 20261053 AMAQI
15th Sep 20261194 AMAQI
30°C27/33°C
15th Sep 20261185 AMAQI
15th Sep 20261266 AMAQI
15th Sep 20261227 AMAQI
15th Sep 20261528 AMAQI
15th Sep 20261399 AMAQI
15th Sep 202613510 AMAQI
15th Sep 202611111 AMAQI
15th Sep 202611012 PMAQI
15th Sep 20261181 PMAQI
15th Sep 20261142 PMAQI
15th Sep 20261123 PMAQI
15th Sep 20261024 PMAQI
15th Sep 20261205 PMAQI
15th Sep 20261246 PMAQI
15th Sep 20261347 PMAQI
15th Sep 20261218 PMAQI
15th Sep 20261489 PMAQI
15th Sep 202615210 PMAQI
15th Sep 202615111 PMAQI
16th Sep 202612212 AMAQI
16th Sep 20261101 AMAQI
16th Sep 20261132 AMAQI
16th Sep 2026973 AMAQI
16th Sep 2026924 AMAQI
30°C27/34°C
16th Sep 2026985 AMAQI
16th Sep 2026926 AMAQI
16th Sep 2026977 AMAQI
16th Sep 20261248 AMAQI
16th Sep 20261409 AMAQI
16th Sep 202610710 AMAQI
16th Sep 202610211 AMAQI
16th Sep 202611612 PMAQI
16th Sep 20261311 PMAQI
16th Sep 20261242 PMAQI
16th Sep 20261263 PMAQI
16th Sep 20261184 PMAQI
16th Sep 2026925 PMAQI
16th Sep 2026886 PMAQI
16th Sep 20261027 PMAQI
16th Sep 20261068 PMAQI
16th Sep 20261329 PMAQI
16th Sep 202611410 PMAQI
16th Sep 202612811 PMAQI
17th Sep 20269012 AMAQI
17th Sep 2026921 AMAQI
17th Sep 20261002 AMAQI
17th Sep 2026973 AMAQI
17th Sep 2026944 AMAQI
30°C27/34°C
17th Sep 2026925 AMAQI
17th Sep 2026886 AMAQI
17th Sep 2026987 AMAQI
17th Sep 20261158 AMAQI
17th Sep 20261099 AMAQI
17th Sep 202613610 AMAQI
17th Sep 202613611 AMAQI
17th Sep 202614512 PMAQI
17th Sep 20261521 PMAQI
17th Sep 20261492 PMAQI
17th Sep 20261473 PMAQI
17th Sep 20261404 PMAQI
17th Sep 20261455 PMAQI
17th Sep 20261486 PMAQI
17th Sep 20261517 PMAQI
17th Sep 20261558 PMAQI
17th Sep 20261539 PMAQI
17th Sep 202615610 PMAQI
17th Sep 202614611 PMAQI
18th Sep 202614812 AMAQI
18th Sep 20261471 AMAQI
18th Sep 20261382 AMAQI
18th Sep 20261163 AMAQI
18th Sep 2026954 AMAQI
30°C27/34°C
18th Sep 2026965 AMAQI
18th Sep 2026946 AMAQI
18th Sep 2026887 AMAQI
18th Sep 2026968 AMAQI
18th Sep 2026899 AMAQI
18th Sep 202610210 AMAQI
18th Sep 202610611 AMAQI
18th Sep 202610512 PMAQI
18th Sep 20261001 PMAQI
18th Sep 20261002 PMAQI
18th Sep 20261093 PMAQI
18th Sep 20261094 PMAQI
18th Sep 20261125 PMAQI
18th Sep 20261026 PMAQI
18th Sep 2026927 PMAQI
18th Sep 2026888 PMAQI
18th Sep 2026929 PMAQI
18th Sep 20269210 PMAQI
18th Sep 20269011 PMAQI
19th Sep 20269412 AMAQI
19th Sep 2026921 AMAQI
19th Sep 2026972 AMAQI
19th Sep 20261043 AMAQI
19th Sep 20261054 AMAQI
31°C28/35°C
19th Sep 20261165 AMAQI
19th Sep 20261106 AMAQI
19th Sep 20261067 AMAQI
19th Sep 20261168 AMAQI
19th Sep 20261069 AMAQI
19th Sep 202612210 AMAQI
19th Sep 202610411 AMAQI
19th Sep 202610012 PMAQI
19th Sep 20261061 PMAQI
19th Sep 20261022 PMAQI
19th Sep 20261043 PMAQI
19th Sep 20261044 PMAQI
19th Sep 20261125 PMAQI
19th Sep 20261116 PMAQI
19th Sep 20261087 PMAQI
19th Sep 20261478 PMAQI
19th Sep 20261409 PMAQI
19th Sep 202615410 PMAQI
19th Sep 202613811 PMAQI
20th Sep 202612012 AMAQI
20th Sep 20261321 AMAQI
20th Sep 20261162 AMAQI
20th Sep 20261263 AMAQI
20th Sep 20261094 AMAQI
31°C27/35°C
20th Sep 20261085 AMAQI
20th Sep 20261106 AMAQI
20th Sep 20261127 AMAQI
20th Sep 20261088 AMAQI
20th Sep 20261089 AMAQI
20th Sep 202612510 AMAQI
20th Sep 202611211 AMAQI
20th Sep 202610212 PMAQI
20th Sep 20261101 PMAQI
20th Sep 20261002 PMAQI
20th Sep 20261023 PMAQI
20th Sep 2026924 PMAQI
20th Sep 2026945 PMAQI
20th Sep 2026946 PMAQI
20th Sep 2026977 PMAQI
20th Sep 2026968 PMAQI
20th Sep 20261019 PMAQI
20th Sep 202611210 PMAQI
20th Sep 202610911 PMAQI
21st Sep 202610812 AMAQI
21st Sep 20261051 AMAQI
21st Sep 20261112 AMAQI
21st Sep 20261143 AMAQI
21st Sep 20261154 AMAQI
31°C27/35°C
21st Sep 20261005 AMAQI
21st Sep 20261126 AMAQI
21st Sep 20261047 AMAQI
21st Sep 20261118 AMAQI
21st Sep 20261159 AMAQI
21st Sep 202610810 AMAQI
21st Sep 20269811 AMAQI
21st Sep 20269212 PMAQI
21st Sep 20261021 PMAQI
21st Sep 20261062 PMAQI
21st Sep 20261063 PMAQI
21st Sep 20261054 PMAQI
21st Sep 20261105 PMAQI
21st Sep 20261186 PMAQI
21st Sep 20261187 PMAQI
21st Sep 20261228 PMAQI
21st Sep 20261329 PMAQI
21st Sep 202612010 PMAQI
21st Sep 202612511 PMAQI
22nd Sep 202612812 AMAQI
22nd Sep 20261291 AMAQI
22nd Sep 20261282 AMAQI
22nd Sep 20261293 AMAQI
22nd Sep 20261224 AMAQI
31°C28/35°C
22nd Sep 20261345 AMAQI
22nd Sep 20261286 AMAQI
22nd Sep 20261467 AMAQI
22nd Sep 20261408 AMAQI
22nd Sep 20261359 AMAQI
22nd Sep 202612210 AMAQI
22nd Sep 202614011 AMAQI
22nd Sep 202613612 PMAQI
22nd Sep 20261301 PMAQI
22nd Sep 20261352 PMAQI
22nd Sep 20261323 PMAQI
22nd Sep 20261244 PMAQI
22nd Sep 20261225 PMAQI
22nd Sep 20261226 PMAQI
22nd Sep 20261207 PMAQI
22nd Sep 20261128 PMAQI
22nd Sep 20261129 PMAQI
22nd Sep 202611910 PMAQI
22nd Sep 202611511 PMAQI
23rd Sep 202611812 AMAQI
23rd Sep 20261081 AMAQI
23rd Sep 20261142 AMAQI
23rd Sep 20261053 AMAQI
23rd Sep 20261064 AMAQI
31°C27/35°C
23rd Sep 20261005 AMAQI
23rd Sep 20261006 AMAQI
23rd Sep 2026997 AMAQI
23rd Sep 20261038 AMAQI
23rd Sep 20261039 AMAQI
23rd Sep 20269410 AMAQI
23rd Sep 202611111 AMAQI
23rd Sep 202610912 PMAQI
23rd Sep 20261041 PMAQI
23rd Sep 20261102 PMAQI
23rd Sep 20261123 PMAQI
23rd Sep 20261204 PMAQI
23rd Sep 2026605 PMAQI
23rd Sep 2026846 PMAQI
23rd Sep 2026867 PMAQI
23rd Sep 2026808 PMAQI
23rd Sep 2026789 PMAQI
23rd Sep 20267410 PMAQI
23rd Sep 20267411 PMAQI
24th Sep 20267212 AMAQI
24th Sep 2026821 AMAQI
24th Sep 20261042 AMAQI
24th Sep 20261013 AMAQI
24th Sep 2026984 AMAQI
29°C26/36°C
24th Sep 2026985 AMAQI
24th Sep 20261126 AMAQI
24th Sep 2026997 AMAQI
24th Sep 20261028 AMAQI
24th Sep 2026979 AMAQI
24th Sep 202610110 AMAQI
24th Sep 202611211 AMAQI
24th Sep 20269912 PMAQI
24th Sep 20261261 PMAQI
24th Sep 20261202 PMAQI
24th Sep 20261323 PMAQI
24th Sep 20261314 PMAQI
24th Sep 20261355 PMAQI
24th Sep 20261266 PMAQI
24th Sep 20261167 PMAQI
24th Sep 20261248 PMAQI
24th Sep 20261119 PMAQI
24th Sep 202611210 PMAQI
24th Sep 202612211 PMAQI
25th Sep 202611912 AMAQI
25th Sep 20261341 AMAQI
25th Sep 20261462 AMAQI
25th Sep 20261403 AMAQI
25th Sep 20261444 AMAQI
24°C22/25°C
25th Sep 20261325 AMAQI
5 AM25th Sep 20261156 AMAQI
25th Sep 20261157 AMAQI
25th Sep 20261158 AMAQI
25th Sep 20261169 AMAQI
25th Sep 20267410 AMAQI
25th Sep 202610111 AMAQI
11 AM25th Sep 20269612 PMAQI
25th Sep 2026951 PMAQI
25th Sep 2026952 PMAQI
25th Sep 2026963 PMAQI
25th Sep 2026924 PMAQI
25th Sep 2026925 PMAQI
25th Sep 2026966 PMAQI
6 PM25th Sep 2026947 PMAQI
25th Sep 2026968 PMAQI
25th Sep 2026929 PMAQI
25th Sep 20269610 PMAQI
25th Sep 20269611 PMAQI
11 PM4 AM
23°C22/25°C
Day time
Avg. Highest Time
8 AM - 9 AM
129AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
10 AM
112AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 AM to 9 AM (Avg. 129), while the lowest AQI was between 10 AM to 10 AM (Avg. 112).
Night time
Avg. Highest Time
7 PM - 11 PM
128AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
12 AM - 4 AM
125AQI
5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 PM to 11 PM (Avg. 128), while the lowest AQI was between 12 AM to 4 AM (Avg. 125).
2026 Days Vs Air Quality
Siwan, Bihar, India
2026
25%
68
44%
119
24%
63
7%
18
Total number of days with different AQI categories in last 268 days in 2026 (97 days remaining)
Good
0 DaysModerate
68 DaysPoor
119 DaysUnhealthy
63 DaysSevere
18 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 0%
Health Risk Level:
Extreme
In 2026, 0% of 268 days were within WHO’s safe air quality limits. The risk of health issues is Extreme, potentially causing respiratory problems, heart disease, skin issues, and stress, especially for children, the elderly, and those with pre-existing conditions.
Annual Air Quality Insights
Siwan, Bihar, India
AQI levels in 2026
AQI (US)
PM₂.₅
PM₁₀
CO
SO₂
NO₂
O₃
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
225AQI (US)
225AQI (US)
2nd January 2026
231AQI (US)
231AQI (US)
3rd January 2026
183AQI (US)
183AQI (US)
4th January 2026
175AQI (US)
175AQI (US)
5th January 2026
200AQI (US)
200AQI (US)
6th January 2026
219AQI (US)
219AQI (US)
7th January 2026
176AQI (US)
176AQI (US)
8th January 2026
157AQI (US)
157AQI (US)
9th January 2026
145AQI (US)
145AQI (US)
10th January 2026
147AQI (US)
147AQI (US)
11th January 2026
173AQI (US)
173AQI (US)
12th January 2026
141AQI (US)
141AQI (US)
13th January 2026
142AQI (US)
142AQI (US)
14th January 2026
134AQI (US)
134AQI (US)
15th January 2026
148AQI (US)
148AQI (US)
16th January 2026
161AQI (US)
161AQI (US)
17th January 2026
169AQI (US)
169AQI (US)
18th January 2026
131AQI (US)
131AQI (US)
19th January 2026
144AQI (US)
144AQI (US)
20th January 2026
135AQI (US)
135AQI (US)
21st January 2026
132AQI (US)
132AQI (US)
22nd January 2026
138AQI (US)
138AQI (US)
23rd January 2026
140AQI (US)
140AQI (US)
24th January 2026
141AQI (US)
141AQI (US)
25th January 2026
136AQI (US)
136AQI (US)
26th January 2026
94AQI (US)
94AQI (US)
27th January 2026
106AQI (US)
106AQI (US)
28th January 2026
120AQI (US)
120AQI (US)
29th January 2026
74AQI (US)
74AQI (US)
30th January 2026
73AQI (US)
73AQI (US)
31st January 2026
91AQI (US)
91AQI (US)
1st February 2026
103AQI (US)
103AQI (US)
2nd February 2026
121AQI (US)
121AQI (US)
3rd February 2026
110AQI (US)
110AQI (US)
4th February 2026
115AQI (US)
115AQI (US)
5th February 2026
94AQI (US)
94AQI (US)
6th February 2026
97AQI (US)
97AQI (US)
7th February 2026
126AQI (US)
126AQI (US)
8th February 2026
160AQI (US)
160AQI (US)
9th February 2026
207AQI (US)
207AQI (US)
10th February 2026
203AQI (US)
203AQI (US)
11th February 2026
209AQI (US)
209AQI (US)
12th February 2026
194AQI (US)
194AQI (US)
13th February 2026
170AQI (US)
170AQI (US)
14th February 2026
178AQI (US)
178AQI (US)
15th February 2026
179AQI (US)
179AQI (US)
16th February 2026
198AQI (US)
198AQI (US)
17th February 2026
214AQI (US)
214AQI (US)
18th February 2026
189AQI (US)
189AQI (US)
19th February 2026
187AQI (US)
187AQI (US)
20th February 2026
190AQI (US)
190AQI (US)
21st February 2026
157AQI (US)
157AQI (US)
22nd February 2026
176AQI (US)
176AQI (US)
23rd February 2026
198AQI (US)
198AQI (US)
24th February 2026
203AQI (US)
203AQI (US)
25th February 2026
197AQI (US)
197AQI (US)
26th February 2026
173AQI (US)
173AQI (US)
27th February 2026
177AQI (US)
177AQI (US)
28th February 2026
175AQI (US)
175AQI (US)
1st March 2026
169AQI (US)
169AQI (US)
2nd March 2026
156AQI (US)
156AQI (US)
3rd March 2026
196AQI (US)
196AQI (US)
4th March 2026
228AQI (US)
228AQI (US)
5th March 2026
206AQI (US)
206AQI (US)
6th March 2026
204AQI (US)
204AQI (US)
7th March 2026
202AQI (US)
202AQI (US)
8th March 2026
209AQI (US)
209AQI (US)
9th March 2026
201AQI (US)
201AQI (US)
10th March 2026
181AQI (US)
181AQI (US)
11th March 2026
230AQI (US)
230AQI (US)
12th March 2026
208AQI (US)
208AQI (US)
13th March 2026
198AQI (US)
198AQI (US)
14th March 2026
175AQI (US)
175AQI (US)
15th March 2026
204AQI (US)
204AQI (US)
16th March 2026
175AQI (US)
175AQI (US)
17th March 2026
128AQI (US)
128AQI (US)
18th March 2026
181AQI (US)
181AQI (US)
19th March 2026
213AQI (US)
213AQI (US)
20th March 2026
176AQI (US)
176AQI (US)
21st March 2026
166AQI (US)
166AQI (US)
22nd March 2026
136AQI (US)
136AQI (US)
23rd March 2026
144AQI (US)
144AQI (US)
24th March 2026
131AQI (US)
131AQI (US)
25th March 2026
128AQI (US)
128AQI (US)
26th March 2026
157AQI (US)
157AQI (US)
27th March 2026
190AQI (US)
190AQI (US)
28th March 2026
107AQI (US)
107AQI (US)
29th March 2026
140AQI (US)
140AQI (US)
30th March 2026
157AQI (US)
157AQI (US)
31st March 2026
173AQI (US)
173AQI (US)
1st April 2026
149AQI (US)
149AQI (US)
2nd April 2026
123AQI (US)
123AQI (US)
3rd April 2026
124AQI (US)
124AQI (US)
4th April 2026
123AQI (US)
123AQI (US)
5th April 2026
76AQI (US)
76AQI (US)
6th April 2026
92AQI (US)
92AQI (US)
7th April 2026
69AQI (US)
69AQI (US)
8th April 2026
86AQI (US)
86AQI (US)
9th April 2026
67AQI (US)
67AQI (US)
10th April 2026
72AQI (US)
72AQI (US)
11th April 2026
76AQI (US)
76AQI (US)
12th April 2026
93AQI (US)
93AQI (US)
13th April 2026
99AQI (US)
99AQI (US)
14th April 2026
79AQI (US)
79AQI (US)
15th April 2026
103AQI (US)
103AQI (US)
16th April 2026
103AQI (US)
103AQI (US)
17th April 2026
80AQI (US)
80AQI (US)
18th April 2026
82AQI (US)
82AQI (US)
19th April 2026
64AQI (US)
64AQI (US)
20th April 2026
63AQI (US)
63AQI (US)
21st April 2026
95AQI (US)
95AQI (US)
22nd April 2026
92AQI (US)
92AQI (US)
23rd April 2026
128AQI (US)
128AQI (US)
24th April 2026
142AQI (US)
142AQI (US)
25th April 2026
149AQI (US)
149AQI (US)
26th April 2026
108AQI (US)
108AQI (US)
27th April 2026
67AQI (US)
67AQI (US)
28th April 2026
81AQI (US)
81AQI (US)
29th April 2026
97AQI (US)
97AQI (US)
30th April 2026
88AQI (US)
88AQI (US)
1st May 2026
123AQI (US)
123AQI (US)
2nd May 2026
121AQI (US)
121AQI (US)
3rd May 2026
113AQI (US)
113AQI (US)
4th May 2026
105AQI (US)
105AQI (US)
5th May 2026
94AQI (US)
94AQI (US)
6th May 2026
99AQI (US)
99AQI (US)
7th May 2026
54AQI (US)
54AQI (US)
8th May 2026
59AQI (US)
59AQI (US)
9th May 2026
56AQI (US)
56AQI (US)
10th May 2026
61AQI (US)
61AQI (US)
11th May 2026
63AQI (US)
63AQI (US)
12th May 2026
78AQI (US)
78AQI (US)
13th May 2026
70AQI (US)
70AQI (US)
14th May 2026
80AQI (US)
80AQI (US)
15th May 2026
65AQI (US)
65AQI (US)
16th May 2026
144AQI (US)
144AQI (US)
17th May 2026
122AQI (US)
122AQI (US)
18th May 2026
111AQI (US)
111AQI (US)
19th May 2026
106AQI (US)
106AQI (US)
20th May 2026
102AQI (US)
102AQI (US)
21st May 2026
118AQI (US)
118AQI (US)
22nd May 2026
113AQI (US)
113AQI (US)
23rd May 2026
127AQI (US)
127AQI (US)
24th May 2026
118AQI (US)
118AQI (US)
25th May 2026
120AQI (US)
120AQI (US)
26th May 2026
81AQI (US)
81AQI (US)
27th May 2026
76AQI (US)
76AQI (US)
28th May 2026
84AQI (US)
84AQI (US)
29th May 2026
83AQI (US)
83AQI (US)
30th May 2026
68AQI (US)
68AQI (US)
31st May 2026
136AQI (US)
136AQI (US)
1st June 2026
149AQI (US)
149AQI (US)
2nd June 2026
98AQI (US)
98AQI (US)
3rd June 2026
85AQI (US)
85AQI (US)
4th June 2026
87AQI (US)
87AQI (US)
5th June 2026
126AQI (US)
126AQI (US)
6th June 2026
91AQI (US)
91AQI (US)
7th June 2026
81AQI (US)
81AQI (US)
8th June 2026
104AQI (US)
104AQI (US)
9th June 2026
99AQI (US)
99AQI (US)
10th June 2026
106AQI (US)
106AQI (US)
11th June 2026
111AQI (US)
111AQI (US)
12th June 2026
102AQI (US)
102AQI (US)
13th June 2026
82AQI (US)
82AQI (US)
14th June 2026
70AQI (US)
70AQI (US)
15th June 2026
106AQI (US)
106AQI (US)
16th June 2026
118AQI (US)
118AQI (US)
17th June 2026
130AQI (US)
130AQI (US)
18th June 2026
112AQI (US)
112AQI (US)
19th June 2026
108AQI (US)
108AQI (US)
20th June 2026
90AQI (US)
90AQI (US)
21st June 2026
118AQI (US)
118AQI (US)
22nd June 2026
91AQI (US)
91AQI (US)
23rd June 2026
124AQI (US)
124AQI (US)
24th June 2026
115AQI (US)
115AQI (US)
25th June 2026
130AQI (US)
130AQI (US)
26th June 2026
96AQI (US)
96AQI (US)
27th June 2026
137AQI (US)
137AQI (US)
28th June 2026
119AQI (US)
119AQI (US)
29th June 2026
103AQI (US)
103AQI (US)
30th June 2026
117AQI (US)
117AQI (US)
1st July 2026
137AQI (US)
137AQI (US)
2nd July 2026
112AQI (US)
112AQI (US)
3rd July 2026
100AQI (US)
100AQI (US)
4th July 2026
106AQI (US)
106AQI (US)
5th July 2026
73AQI (US)
73AQI (US)
6th July 2026
68AQI (US)
68AQI (US)
7th July 2026
84AQI (US)
84AQI (US)
8th July 2026
112AQI (US)
112AQI (US)
9th July 2026
110AQI (US)
110AQI (US)
10th July 2026
78AQI (US)
78AQI (US)
11th July 2026
93AQI (US)
93AQI (US)
12th July 2026
81AQI (US)
81AQI (US)
13th July 2026
89AQI (US)
89AQI (US)
14th July 2026
74AQI (US)
74AQI (US)
15th July 2026
91AQI (US)
91AQI (US)
16th July 2026
100AQI (US)
100AQI (US)
17th July 2026
112AQI (US)
112AQI (US)
18th July 2026
134AQI (US)
134AQI (US)
19th July 2026
129AQI (US)
129AQI (US)
20th July 2026
125AQI (US)
125AQI (US)
21st July 2026
121AQI (US)
121AQI (US)
22nd July 2026
112AQI (US)
112AQI (US)
23rd July 2026
128AQI (US)
128AQI (US)
24th July 2026
152AQI (US)
152AQI (US)
25th July 2026
149AQI (US)
149AQI (US)
26th July 2026
143AQI (US)
143AQI (US)
27th July 2026
150AQI (US)
150AQI (US)
28th July 2026
134AQI (US)
134AQI (US)
29th July 2026
151AQI (US)
151AQI (US)
30th July 2026
133AQI (US)
133AQI (US)
31st July 2026
149AQI (US)
149AQI (US)
1st August 2026
151AQI (US)
151AQI (US)
2nd August 2026
151AQI (US)
151AQI (US)
3rd August 2026
148AQI (US)
148AQI (US)
4th August 2026
155AQI (US)
155AQI (US)
5th August 2026
139AQI (US)
139AQI (US)
6th August 2026
149AQI (US)
149AQI (US)
7th August 2026
152AQI (US)
152AQI (US)
8th August 2026
152AQI (US)
152AQI (US)
9th August 2026
155AQI (US)
155AQI (US)
10th August 2026
148AQI (US)
148AQI (US)
11th August 2026
147AQI (US)
147AQI (US)
12th August 2026
152AQI (US)
152AQI (US)
13th August 2026
155AQI (US)
155AQI (US)
14th August 2026
154AQI (US)
154AQI (US)
15th August 2026
157AQI (US)
157AQI (US)
16th August 2026
155AQI (US)
155AQI (US)
17th August 2026
158AQI (US)
158AQI (US)
18th August 2026
142AQI (US)
142AQI (US)
19th August 2026
140AQI (US)
140AQI (US)
20th August 2026
156AQI (US)
156AQI (US)
21st August 2026
158AQI (US)
158AQI (US)
22nd August 2026
159AQI (US)
159AQI (US)
23rd August 2026
156AQI (US)
156AQI (US)
24th August 2026
155AQI (US)
155AQI (US)
25th August 2026
132AQI (US)
132AQI (US)
26th August 2026
135AQI (US)
135AQI (US)
27th August 2026
143AQI (US)
143AQI (US)
28th August 2026
158AQI (US)
158AQI (US)
29th August 2026
158AQI (US)
158AQI (US)
30th August 2026
153AQI (US)
153AQI (US)
31st August 2026
152AQI (US)
152AQI (US)
1st September 2026
157AQI (US)
157AQI (US)
2nd September 2026
136AQI (US)
136AQI (US)
3rd September 2026
119AQI (US)
119AQI (US)
4th September 2026
134AQI (US)
134AQI (US)
5th September 2026
145AQI (US)
145AQI (US)
6th September 2026
156AQI (US)
156AQI (US)
7th September 2026
110AQI (US)
110AQI (US)
8th September 2026
120AQI (US)
120AQI (US)
9th September 2026
136AQI (US)
136AQI (US)
10th September 2026
134AQI (US)
134AQI (US)
11th September 2026
107AQI (US)
107AQI (US)
12th September 2026
93AQI (US)
93AQI (US)
13th September 2026
94AQI (US)
94AQI (US)
14th September 2026
91AQI (US)
91AQI (US)
15th September 2026
122AQI (US)
122AQI (US)
16th September 2026
111AQI (US)
111AQI (US)
17th September 2026
126AQI (US)
126AQI (US)
18th September 2026
104AQI (US)
104AQI (US)
19th September 2026
112AQI (US)
112AQI (US)
20th September 2026
108AQI (US)
108AQI (US)
21st September 2026
111AQI (US)
111AQI (US)
22nd September 2026
128AQI (US)
128AQI (US)
23rd September 2026
98AQI (US)
98AQI (US)
24th September 2026
110AQI (US)
110AQI (US)
25th September 2026
108AQI (US)
108AQI (US)
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026
148AQI (US)
168AQI (US)
176AQI (US)
96AQI (US)
95AQI (US)
107AQI (US)
114AQI (US)
151AQI (US)
119AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
2026130AQI (US)
4
16
8
3
2
5
16
5
7
14
10
20
10
16
15
11
19
11
18
2
10
21
4
19
2
68
119
63
18
Highest AQI (US) recorded in
March176AQI (US)
Lowest AQI (US) recorded in
May95AQI (US)
2025126AQI (US)
16
15
27
1
3
26
2
4
23
3
21
10
23
7
31
31
30
9
11
10
1
1
1
3
25
7
21
3
153
121
41
47
3
Highest AQI (US) recorded in
December240AQI (US)
Lowest AQI (US) recorded in
July64AQI (US)
2024117AQI (US)
6
24
1
5
14
10
1
15
14
12
12
4
12
13
1
29
1
4
27
20
7
4
18
10
1
15
15
1
12
18
18
13
4
131
122
98
2
Highest AQI (US) recorded in
January159AQI (US)
Lowest AQI (US) recorded in
July59AQI (US)
2023155AQI (US)
2
19
9
1
6
20
1
10
12
9
13
14
1
2
17
9
1
4
19
4
3
23
4
1
2
1
4
16
8
3
1
10
12
6
1
2
5
18
6
2
6
7
5
2
1
13
16
7
63
121
86
61
13
Highest AQI (US) recorded in
January273AQI (US)
Lowest AQI (US) recorded in
August89AQI (US)
2022227AQI (US)
11
4
3
7
6
5
3
1
12
17
12
17
3
18
10
6
27
34
Highest AQI (US) recorded in
December317AQI (US)
Lowest AQI (US) recorded in
September88AQI (US)
Most & Least Polluted Years Over the Last 5 Years
Most Polluted Year Recorded
2022(Avg.)
227AQI (US)Least Polluted Year Recorded
2024(Avg.)
117AQI (US)Siwan's annual 2026 AQI (US) (130) shows an average percentage change of -11.1% (improved AQI (US)) compared to previous years: 2022 (227), 2023 (155), 2024 (117), 2025 (126).
