Rockford, Illinois, United States 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+
August Air Quality Analysis
Rockford, Illinois, United States
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
1st Aug 2025
115AQILowest AQI recorded on
14th Aug 2023
13AQISame Day Analysis (10th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 49 of Good air quality, showing improvement over 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 10th Aug - 11th Aug 2025
Rockford, Illinois, United States
AQI
Day
Night
.
5 AM10th Aug 2025
8 PM
4 AM11th Aug 2025
Day time
Avg. Highest Time
8PM10th Aug
52AQI
Avg. Lowest Time
2PM10th Aug
34AQI
Night time
Avg. Highest Time
10PM10th Aug
51AQI
Avg. Lowest Time
4AM11th Aug
40AQI
In the last 24 hours,
Rockford's AQI reached its highest point of 52 at 8 PM during the Day, while the lowest point, 34, was recorded at 2 PM during the Day between 10th Aug and 11th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Rockford, Illinois, United States
JulAug
12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th
Day
Night
12th Jul 2025225 AMAQI
12th Jul 2025226 AMAQI
12th Jul 2025227 AMAQI
12th Jul 2025248 AMAQI
12th Jul 2025239 AMAQI
12th Jul 20252310 AMAQI
12th Jul 20252211 AMAQI
12th Jul 20252312 PMAQI
12th Jul 2025231 PMAQI
12th Jul 2025262 PMAQI
12th Jul 2025273 PMAQI
12th Jul 2025274 PMAQI
12th Jul 2025285 PMAQI
12th Jul 2025306 PMAQI
12th Jul 2025277 PMAQI
12th Jul 2025288 PMAQI
12th Jul 2025329 PMAQI
12th Jul 20253210 PMAQI
12th Jul 20253411 PMAQI
13th Jul 20253812 AMAQI
13th Jul 2025461 AMAQI
13th Jul 2025582 AMAQI
13th Jul 2025563 AMAQI
13th Jul 2025544 AMAQI
24°C19/30°C
13th Jul 2025525 AMAQI
13th Jul 2025526 AMAQI
13th Jul 2025547 AMAQI
13th Jul 2025558 AMAQI
13th Jul 2025579 AMAQI
13th Jul 20256210 AMAQI
13th Jul 20256511 AMAQI
13th Jul 20257212 PMAQI
13th Jul 2025711 PMAQI
13th Jul 2025682 PMAQI
13th Jul 2025603 PMAQI
13th Jul 2025614 PMAQI
13th Jul 2025645 PMAQI
13th Jul 2025636 PMAQI
13th Jul 2025607 PMAQI
13th Jul 2025568 PMAQI
13th Jul 2025569 PMAQI
13th Jul 20255710 PMAQI
13th Jul 20255811 PMAQI
14th Jul 20255712 AMAQI
14th Jul 2025681 AMAQI
14th Jul 2025772 AMAQI
14th Jul 2025813 AMAQI
14th Jul 2025814 AMAQI
21°C13/27°C
14th Jul 2025775 AMAQI
14th Jul 2025756 AMAQI
14th Jul 2025807 AMAQI
14th Jul 2025788 AMAQI
14th Jul 2025749 AMAQI
14th Jul 20257310 AMAQI
14th Jul 20256911 AMAQI
14th Jul 20257212 PMAQI
14th Jul 2025721 PMAQI
14th Jul 2025722 PMAQI
14th Jul 2025743 PMAQI
14th Jul 2025754 PMAQI
14th Jul 2025745 PMAQI
14th Jul 2025746 PMAQI
14th Jul 2025747 PMAQI
14th Jul 2025768 PMAQI
14th Jul 2025729 PMAQI
14th Jul 20257210 PMAQI
14th Jul 20257211 PMAQI
15th Jul 20257412 AMAQI
15th Jul 2025761 AMAQI
15th Jul 2025762 AMAQI
15th Jul 2025743 AMAQI
15th Jul 2025744 AMAQI
23°C13/32°C
15th Jul 2025755 AMAQI
15th Jul 2025736 AMAQI
15th Jul 2025757 AMAQI
15th Jul 2025748 AMAQI
15th Jul 2025769 AMAQI
15th Jul 20257410 AMAQI
15th Jul 20257011 AMAQI
15th Jul 20256812 PMAQI
15th Jul 2025631 PMAQI
15th Jul 2025642 PMAQI
15th Jul 2025683 PMAQI
15th Jul 2025664 PMAQI
15th Jul 2025645 PMAQI
15th Jul 2025646 PMAQI
15th Jul 2025707 PMAQI
15th Jul 2025688 PMAQI
15th Jul 2025669 PMAQI
15th Jul 20256610 PMAQI
15th Jul 20256511 PMAQI
16th Jul 20256412 AMAQI
16th Jul 2025631 AMAQI
16th Jul 2025582 AMAQI
16th Jul 2025543 AMAQI
16th Jul 2025524 AMAQI
24°C15/30°C
16th Jul 2025465 AMAQI
16th Jul 2025466 AMAQI
16th Jul 2025507 AMAQI
16th Jul 2025528 AMAQI
16th Jul 2025529 AMAQI
16th Jul 20255210 AMAQI
16th Jul 20255211 AMAQI
16th Jul 20255012 PMAQI
16th Jul 2025501 PMAQI
16th Jul 2025502 PMAQI
16th Jul 2025523 PMAQI
16th Jul 2025504 PMAQI
16th Jul 2025475 PMAQI
16th Jul 2025446 PMAQI
16th Jul 2025517 PMAQI
16th Jul 2025528 PMAQI
16th Jul 2025449 PMAQI
16th Jul 20254510 PMAQI
16th Jul 20254111 PMAQI
17th Jul 20253912 AMAQI
17th Jul 2025381 AMAQI
17th Jul 2025222 AMAQI
17th Jul 2025213 AMAQI
17th Jul 2025224 AMAQI
25°C19/32°C
17th Jul 2025215 AMAQI
17th Jul 2025226 AMAQI
17th Jul 2025227 AMAQI
17th Jul 2025218 AMAQI
17th Jul 2025199 AMAQI
17th Jul 20252010 AMAQI
17th Jul 20252011 AMAQI
17th Jul 20252012 PMAQI
17th Jul 2025201 PMAQI
17th Jul 2025202 PMAQI
17th Jul 2025213 PMAQI
17th Jul 2025224 PMAQI
17th Jul 2025225 PMAQI
17th Jul 2025226 PMAQI
17th Jul 2025227 PMAQI
17th Jul 2025228 PMAQI
17th Jul 2025219 PMAQI
17th Jul 20252310 PMAQI
17th Jul 20252211 PMAQI
18th Jul 20252112 AMAQI
18th Jul 2025221 AMAQI
18th Jul 2025182 AMAQI
18th Jul 2025193 AMAQI
18th Jul 2025184 AMAQI
19°C14/22°C
18th Jul 2025185 AMAQI
18th Jul 2025186 AMAQI
18th Jul 2025187 AMAQI
18th Jul 2025198 AMAQI
18th Jul 2025199 AMAQI
18th Jul 20251810 AMAQI
18th Jul 20251811 AMAQI
18th Jul 20252012 PMAQI
18th Jul 2025191 PMAQI
18th Jul 2025202 PMAQI
18th Jul 2025203 PMAQI
18th Jul 2025204 PMAQI
18th Jul 2025205 PMAQI
18th Jul 2025206 PMAQI
18th Jul 2025207 PMAQI
18th Jul 2025208 PMAQI
18th Jul 2025219 PMAQI
18th Jul 20252210 PMAQI
18th Jul 20252411 PMAQI
19th Jul 20252712 AMAQI
19th Jul 2025271 AMAQI
19th Jul 2025282 AMAQI
19th Jul 2025273 AMAQI
19th Jul 2025264 AMAQI
19°C8/29°C
19th Jul 2025275 AMAQI
19th Jul 2025276 AMAQI
19th Jul 2025287 AMAQI
19th Jul 2025278 AMAQI
19th Jul 2025269 AMAQI
19th Jul 20252710 AMAQI
19th Jul 20252811 AMAQI
19th Jul 20252612 PMAQI
19th Jul 2025241 PMAQI
19th Jul 2025262 PMAQI
19th Jul 2025273 PMAQI
19th Jul 2025264 PMAQI
19th Jul 2025265 PMAQI
19th Jul 2025266 PMAQI
19th Jul 2025277 PMAQI
19th Jul 2025278 PMAQI
19th Jul 2025249 PMAQI
19th Jul 20252610 PMAQI
19th Jul 20252511 PMAQI
20th Jul 20252412 AMAQI
20th Jul 2025251 AMAQI
20th Jul 2025212 AMAQI
20th Jul 2025213 AMAQI
20th Jul 2025214 AMAQI
23°C17/29°C
20th Jul 2025225 AMAQI
20th Jul 2025236 AMAQI
20th Jul 2025267 AMAQI
20th Jul 2025288 AMAQI
20th Jul 2025279 AMAQI
20th Jul 20252610 AMAQI
20th Jul 20252411 AMAQI
20th Jul 20252412 PMAQI
20th Jul 2025261 PMAQI
20th Jul 2025292 PMAQI
20th Jul 2025283 PMAQI
20th Jul 2025294 PMAQI
20th Jul 2025285 PMAQI
20th Jul 2025296 PMAQI
20th Jul 2025267 PMAQI
20th Jul 2025278 PMAQI
20th Jul 2025339 PMAQI
20th Jul 20253410 PMAQI
20th Jul 20253411 PMAQI
21st Jul 20253912 AMAQI
21st Jul 2025451 AMAQI
21st Jul 2025802 AMAQI
21st Jul 2025863 AMAQI
21st Jul 2025944 AMAQI
20°C17/20°C
21st Jul 2025955 AMAQI
21st Jul 2025846 AMAQI
21st Jul 2025907 AMAQI
21st Jul 2025918 AMAQI
21st Jul 2025869 AMAQI
21st Jul 20258210 AMAQI
21st Jul 20256911 AMAQI
21st Jul 20257112 PMAQI
21st Jul 2025711 PMAQI
21st Jul 2025742 PMAQI
21st Jul 2025763 PMAQI
21st Jul 2025774 PMAQI
21st Jul 2025745 PMAQI
21st Jul 2025746 PMAQI
21st Jul 2025757 PMAQI
21st Jul 2025768 PMAQI
21st Jul 2025729 PMAQI
21st Jul 20257210 PMAQI
21st Jul 20257211 PMAQI
22nd Jul 20256912 AMAQI
22nd Jul 2025731 AMAQI
22nd Jul 2025832 AMAQI
22nd Jul 2025733 AMAQI
22nd Jul 2025714 AMAQI
21°C13/29°C
22nd Jul 2025685 AMAQI
22nd Jul 2025736 AMAQI
22nd Jul 2025707 AMAQI
22nd Jul 2025688 AMAQI
22nd Jul 2025709 AMAQI
22nd Jul 20257610 AMAQI
22nd Jul 20257611 AMAQI
22nd Jul 20257112 PMAQI
22nd Jul 2025681 PMAQI
22nd Jul 2025702 PMAQI
22nd Jul 2025683 PMAQI
22nd Jul 2025684 PMAQI
22nd Jul 2025685 PMAQI
22nd Jul 2025676 PMAQI
22nd Jul 2025667 PMAQI
22nd Jul 2025668 PMAQI
22nd Jul 2025669 PMAQI
22nd Jul 20256410 PMAQI
22nd Jul 20256611 PMAQI
23rd Jul 20256412 AMAQI
23rd Jul 2025661 AMAQI
23rd Jul 2025662 AMAQI
23rd Jul 2025673 AMAQI
23rd Jul 2025654 AMAQI
24°C14/33°C
23rd Jul 2025665 AMAQI
23rd Jul 2025656 AMAQI
23rd Jul 2025647 AMAQI
23rd Jul 2025658 AMAQI
23rd Jul 2025659 AMAQI
23rd Jul 20256310 AMAQI
23rd Jul 20256211 AMAQI
23rd Jul 20256412 PMAQI
23rd Jul 2025631 PMAQI
23rd Jul 2025632 PMAQI
23rd Jul 2025633 PMAQI
23rd Jul 2025624 PMAQI
23rd Jul 2025625 PMAQI
23rd Jul 2025616 PMAQI
23rd Jul 2025637 PMAQI
23rd Jul 2025628 PMAQI
23rd Jul 2025609 PMAQI
23rd Jul 20256110 PMAQI
23rd Jul 20256011 PMAQI
24th Jul 20255912 AMAQI
24th Jul 2025621 AMAQI
24th Jul 2025582 AMAQI
24th Jul 2025573 AMAQI
24th Jul 2025554 AMAQI
28°C21/35°C
24th Jul 2025555 AMAQI
24th Jul 2025566 AMAQI
24th Jul 2025567 AMAQI
24th Jul 2025568 AMAQI
24th Jul 2025569 AMAQI
24th Jul 20255310 AMAQI
24th Jul 20254511 AMAQI
24th Jul 20254012 PMAQI
24th Jul 2025371 PMAQI
24th Jul 2025402 PMAQI
24th Jul 2025503 PMAQI
24th Jul 2025474 PMAQI
24th Jul 2025465 PMAQI
24th Jul 2025466 PMAQI
24th Jul 2025527 PMAQI
24th Jul 2025548 PMAQI
24th Jul 2025479 PMAQI
24th Jul 20254410 PMAQI
24th Jul 20254811 PMAQI
25th Jul 20254412 AMAQI
25th Jul 2025441 AMAQI
25th Jul 2025232 AMAQI
25th Jul 2025223 AMAQI
25th Jul 2025234 AMAQI
27°C22/32°C
25th Jul 2025225 AMAQI
25th Jul 2025226 AMAQI
25th Jul 2025227 AMAQI
25th Jul 2025238 AMAQI
25th Jul 2025249 AMAQI
25th Jul 20252210 AMAQI
25th Jul 20252411 AMAQI
25th Jul 20252412 PMAQI
25th Jul 2025241 PMAQI
25th Jul 2025272 PMAQI
25th Jul 2025283 PMAQI
25th Jul 2025364 PMAQI
25th Jul 2025305 PMAQI
25th Jul 2025456 PMAQI
25th Jul 2025287 PMAQI
25th Jul 2025288 PMAQI
25th Jul 2025329 PMAQI
25th Jul 20253010 PMAQI
25th Jul 20252811 PMAQI
26th Jul 20252812 AMAQI
26th Jul 2025301 AMAQI
26th Jul 2025362 AMAQI
26th Jul 2025423 AMAQI
26th Jul 2025444 AMAQI
25°C21/30°C
26th Jul 2025465 AMAQI
26th Jul 2025436 AMAQI
26th Jul 2025447 AMAQI
26th Jul 2025408 AMAQI
26th Jul 2025379 AMAQI
26th Jul 20253710 AMAQI
26th Jul 20253311 AMAQI
26th Jul 20253212 PMAQI
26th Jul 2025321 PMAQI
26th Jul 2025342 PMAQI
26th Jul 2025363 PMAQI
26th Jul 2025364 PMAQI
26th Jul 2025345 PMAQI
26th Jul 2025346 PMAQI
26th Jul 2025397 PMAQI
26th Jul 2025418 PMAQI
26th Jul 2025359 PMAQI
26th Jul 20253510 PMAQI
26th Jul 20253411 PMAQI
27th Jul 20253512 AMAQI
27th Jul 2025371 AMAQI
27th Jul 2025302 AMAQI
27th Jul 2025313 AMAQI
27th Jul 2025314 AMAQI
24°C22/29°C
27th Jul 2025345 AMAQI
27th Jul 2025296 AMAQI
27th Jul 2025307 AMAQI
27th Jul 2025308 AMAQI
27th Jul 2025319 AMAQI
27th Jul 20253110 AMAQI
27th Jul 20253111 AMAQI
27th Jul 20253212 PMAQI
27th Jul 2025311 PMAQI
27th Jul 2025322 PMAQI
27th Jul 2025323 PMAQI
27th Jul 2025324 PMAQI
27th Jul 2025315 PMAQI
27th Jul 2025326 PMAQI
27th Jul 2025317 PMAQI
27th Jul 2025318 PMAQI
27th Jul 2025329 PMAQI
27th Jul 20253110 PMAQI
27th Jul 20253111 PMAQI
28th Jul 20253212 AMAQI
28th Jul 2025321 AMAQI
28th Jul 2025292 AMAQI
28th Jul 2025293 AMAQI
28th Jul 2025284 AMAQI
26°C20/32°C
28th Jul 2025285 AMAQI
28th Jul 2025286 AMAQI
28th Jul 2025297 AMAQI
28th Jul 2025288 AMAQI
28th Jul 2025289 AMAQI
28th Jul 20252810 AMAQI
28th Jul 20253011 AMAQI
28th Jul 20253312 PMAQI
28th Jul 2025341 PMAQI
28th Jul 2025332 PMAQI
28th Jul 2025343 PMAQI
28th Jul 2025324 PMAQI
28th Jul 2025325 PMAQI
28th Jul 2025326 PMAQI
28th Jul 2025307 PMAQI
28th Jul 2025318 PMAQI
28th Jul 2025319 PMAQI
28th Jul 20253110 PMAQI
28th Jul 20253111 PMAQI
29th Jul 20253412 AMAQI
29th Jul 2025401 AMAQI
29th Jul 2025502 AMAQI
29th Jul 2025523 AMAQI
29th Jul 2025484 AMAQI
28°C21/35°C
29th Jul 2025425 AMAQI
29th Jul 2025366 AMAQI
29th Jul 2025367 AMAQI
29th Jul 2025368 AMAQI
29th Jul 2025369 AMAQI
29th Jul 20253610 AMAQI
29th Jul 20254011 AMAQI
29th Jul 20254012 PMAQI
29th Jul 2025401 PMAQI
29th Jul 2025412 PMAQI
29th Jul 2025423 PMAQI
29th Jul 2025424 PMAQI
29th Jul 2025415 PMAQI
29th Jul 2025426 PMAQI
29th Jul 2025407 PMAQI
29th Jul 2025408 PMAQI
29th Jul 2025419 PMAQI
29th Jul 20254210 PMAQI
29th Jul 20254311 PMAQI
30th Jul 20254612 AMAQI
30th Jul 2025471 AMAQI
30th Jul 2025482 AMAQI
30th Jul 2025513 AMAQI
30th Jul 2025504 AMAQI
27°C19/36°C
30th Jul 2025515 AMAQI
30th Jul 2025516 AMAQI
30th Jul 2025497 AMAQI
30th Jul 2025448 AMAQI
30th Jul 2025399 AMAQI
30th Jul 20253710 AMAQI
30th Jul 20253611 AMAQI
30th Jul 20254112 PMAQI
30th Jul 2025421 PMAQI
30th Jul 2025442 PMAQI
30th Jul 2025443 PMAQI
30th Jul 2025444 PMAQI
30th Jul 2025445 PMAQI
30th Jul 2025446 PMAQI
30th Jul 2025447 PMAQI
30th Jul 2025448 PMAQI
30th Jul 2025479 PMAQI
30th Jul 20255210 PMAQI
30th Jul 20255411 PMAQI
31st Jul 20255812 AMAQI
31st Jul 2025621 AMAQI
31st Jul 2025912 AMAQI
31st Jul 20251143 AMAQI
31st Jul 20251314 AMAQI
22°C19/26°C
31st Jul 20251365 AMAQI
31st Jul 20251496 AMAQI
31st Jul 20251567 AMAQI
31st Jul 20251648 AMAQI
31st Jul 20251729 AMAQI
31st Jul 202518310 AMAQI
31st Jul 202518011 AMAQI
31st Jul 202518612 PMAQI
31st Jul 20251761 PMAQI
31st Jul 20251802 PMAQI
31st Jul 20251773 PMAQI
31st Jul 20251734 PMAQI
31st Jul 20251665 PMAQI
31st Jul 20251676 PMAQI
31st Jul 20251617 PMAQI
31st Jul 20251558 PMAQI
31st Jul 20251509 PMAQI
31st Jul 202514910 PMAQI
31st Jul 202514111 PMAQI
1st Aug 202513712 AMAQI
1st Aug 20251201 AMAQI
1st Aug 20251262 AMAQI
1st Aug 20251263 AMAQI
1st Aug 20251254 AMAQI
19°C13/25°C
1st Aug 20251145 AMAQI
1st Aug 20251146 AMAQI
1st Aug 20251137 AMAQI
1st Aug 20251048 AMAQI
1st Aug 20251149 AMAQI
1st Aug 202510710 AMAQI
1st Aug 202510411 AMAQI
1st Aug 202510912 PMAQI
1st Aug 20251141 PMAQI
1st Aug 20251062 PMAQI
1st Aug 20251043 PMAQI
1st Aug 20251024 PMAQI
1st Aug 20251045 PMAQI
1st Aug 20251016 PMAQI
1st Aug 20251267 PMAQI
1st Aug 20251118 PMAQI
1st Aug 20251109 PMAQI
1st Aug 202511910 PMAQI
1st Aug 202511611 PMAQI
2nd Aug 202510912 AMAQI
2nd Aug 20251041 AMAQI
2nd Aug 20251082 AMAQI
2nd Aug 20251043 AMAQI
2nd Aug 20251014 AMAQI
18°C11/26°C
2nd Aug 20251005 AMAQI
2nd Aug 20251046 AMAQI
2nd Aug 20251087 AMAQI
2nd Aug 20251068 AMAQI
2nd Aug 20251059 AMAQI
2nd Aug 202510210 AMAQI
2nd Aug 202510111 AMAQI
2nd Aug 20259612 PMAQI
2nd Aug 2025891 PMAQI
2nd Aug 2025882 PMAQI
2nd Aug 2025853 PMAQI
2nd Aug 2025874 PMAQI
2nd Aug 2025905 PMAQI
2nd Aug 2025966 PMAQI
2nd Aug 20251007 PMAQI
2nd Aug 20251008 PMAQI
2nd Aug 2025949 PMAQI
2nd Aug 20259210 PMAQI
2nd Aug 202510711 PMAQI
3rd Aug 202510412 AMAQI
3rd Aug 20251081 AMAQI
3rd Aug 20251072 AMAQI
3rd Aug 20251023 AMAQI
3rd Aug 2025984 AMAQI
18°C6/28°C
3rd Aug 20251015 AMAQI
3rd Aug 20251056 AMAQI
3rd Aug 2025967 AMAQI
3rd Aug 20251018 AMAQI
3rd Aug 20251009 AMAQI
3rd Aug 20259610 AMAQI
3rd Aug 20259611 AMAQI
3rd Aug 20259712 PMAQI
3rd Aug 20251091 PMAQI
3rd Aug 20251262 PMAQI
3rd Aug 20251333 PMAQI
3rd Aug 20251344 PMAQI
3rd Aug 20251355 PMAQI
3rd Aug 20251446 PMAQI
3rd Aug 20251017 PMAQI
3rd Aug 20251198 PMAQI
3rd Aug 20251339 PMAQI
3rd Aug 202512810 PMAQI
3rd Aug 202512811 PMAQI
4th Aug 202512412 AMAQI
4th Aug 20251281 AMAQI
4th Aug 20251222 AMAQI
4th Aug 20251323 AMAQI
4th Aug 20251294 AMAQI
18°C6/29°C
4th Aug 20251315 AMAQI
4th Aug 20251306 AMAQI
4th Aug 20251357 AMAQI
4th Aug 20251418 AMAQI
4th Aug 20251439 AMAQI
4th Aug 202514110 AMAQI
4th Aug 202512011 AMAQI
4th Aug 202510712 PMAQI
4th Aug 2025901 PMAQI
4th Aug 2025842 PMAQI
4th Aug 2025803 PMAQI
4th Aug 2025794 PMAQI
4th Aug 2025745 PMAQI
4th Aug 2025726 PMAQI
4th Aug 20251287 PMAQI
4th Aug 2025978 PMAQI
4th Aug 2025659 PMAQI
4th Aug 20256510 PMAQI
4th Aug 20256511 PMAQI
5th Aug 20256512 AMAQI
5th Aug 2025661 AMAQI
5th Aug 2025692 AMAQI
5th Aug 2025703 AMAQI
5th Aug 2025674 AMAQI
19°C11/28°C
5th Aug 2025665 AMAQI
5th Aug 2025656 AMAQI
5th Aug 2025717 AMAQI
5th Aug 2025808 AMAQI
5th Aug 2025889 AMAQI
5th Aug 20259610 AMAQI
5th Aug 20259711 AMAQI
5th Aug 20259312 PMAQI
5th Aug 2025911 PMAQI
5th Aug 2025922 PMAQI
5th Aug 2025893 PMAQI
5th Aug 2025894 PMAQI
5th Aug 2025785 PMAQI
5th Aug 2025786 PMAQI
5th Aug 2025777 PMAQI
5th Aug 2025778 PMAQI
5th Aug 2025799 PMAQI
5th Aug 20258710 PMAQI
5th Aug 20259511 PMAQI
6th Aug 20259512 AMAQI
6th Aug 20251141 AMAQI
6th Aug 20251112 AMAQI
6th Aug 20251123 AMAQI
6th Aug 20251134 AMAQI
21°C13/30°C
6th Aug 20251045 AMAQI
6th Aug 20251116 AMAQI
6th Aug 20251107 AMAQI
6th Aug 20251218 AMAQI
6th Aug 20251179 AMAQI
6th Aug 202511010 AMAQI
6th Aug 20259611 AMAQI
6th Aug 20258612 PMAQI
6th Aug 2025801 PMAQI
6th Aug 2025732 PMAQI
6th Aug 2025673 PMAQI
6th Aug 2025634 PMAQI
6th Aug 2025605 PMAQI
6th Aug 2025606 PMAQI
6th Aug 2025997 PMAQI
6th Aug 2025768 PMAQI
6th Aug 2025589 PMAQI
6th Aug 20255810 PMAQI
6th Aug 20255811 PMAQI
7th Aug 20256912 AMAQI
7th Aug 2025791 AMAQI
7th Aug 2025572 AMAQI
7th Aug 2025543 AMAQI
7th Aug 2025544 AMAQI
22°C14/32°C
7th Aug 2025555 AMAQI
7th Aug 2025566 AMAQI
7th Aug 2025597 AMAQI
7th Aug 2025578 AMAQI
7th Aug 2025569 AMAQI
7th Aug 20255610 AMAQI
7th Aug 20255611 AMAQI
7th Aug 20255612 PMAQI
7th Aug 2025571 PMAQI
7th Aug 2025592 PMAQI
7th Aug 2025603 PMAQI
7th Aug 2025604 PMAQI
7th Aug 2025605 PMAQI
7th Aug 2025606 PMAQI
7th Aug 2025597 PMAQI
7th Aug 2025608 PMAQI
7th Aug 2025609 PMAQI
7th Aug 20256110 PMAQI
7th Aug 20256011 PMAQI
8th Aug 20256012 AMAQI
8th Aug 2025601 AMAQI
8th Aug 2025562 AMAQI
8th Aug 2025563 AMAQI
8th Aug 2025564 AMAQI
25°C18/31°C
8th Aug 2025545 AMAQI
8th Aug 2025536 AMAQI
8th Aug 2025547 AMAQI
8th Aug 2025558 AMAQI
8th Aug 2025559 AMAQI
8th Aug 20255610 AMAQI
8th Aug 20255611 AMAQI
8th Aug 20255612 PMAQI
8th Aug 2025561 PMAQI
8th Aug 2025552 PMAQI
8th Aug 2025563 PMAQI
8th Aug 2025564 PMAQI
8th Aug 2025555 PMAQI
8th Aug 2025556 PMAQI
8th Aug 2025567 PMAQI
8th Aug 2025568 PMAQI
8th Aug 2025559 PMAQI
8th Aug 20255610 PMAQI
8th Aug 20255611 PMAQI
9th Aug 20255612 AMAQI
9th Aug 2025561 AMAQI
9th Aug 2025562 AMAQI
9th Aug 2025563 AMAQI
9th Aug 2025564 AMAQI
27°C19/35°C
9th Aug 2025565 AMAQI
9th Aug 2025566 AMAQI
9th Aug 2025577 AMAQI
9th Aug 2025578 AMAQI
9th Aug 2025579 AMAQI
9th Aug 20255610 AMAQI
9th Aug 20255611 AMAQI
9th Aug 20255612 PMAQI
9th Aug 2025561 PMAQI
9th Aug 2025572 PMAQI
9th Aug 2025573 PMAQI
9th Aug 2025564 PMAQI
9th Aug 2025575 PMAQI
9th Aug 2025566 PMAQI
9th Aug 2025567 PMAQI
9th Aug 2025588 PMAQI
9th Aug 2025569 PMAQI
9th Aug 20255510 PMAQI
9th Aug 20255511 PMAQI
10th Aug 20255512 AMAQI
10th Aug 2025551 AMAQI
10th Aug 2025522 AMAQI
10th Aug 2025513 AMAQI
10th Aug 2025514 AMAQI
28°C21/36°C
10th Aug 2025465 AMAQI
10th Aug 2025486 AMAQI
10th Aug 2025507 AMAQI
10th Aug 2025508 AMAQI
10th Aug 2025489 AMAQI
10th Aug 20254810 AMAQI
10th Aug 20255011 AMAQI
10th Aug 20254712 PMAQI
10th Aug 2025351 PMAQI
10th Aug 2025342 PMAQI
10th Aug 2025423 PMAQI
10th Aug 2025384 PMAQI
10th Aug 2025425 PMAQI
10th Aug 2025466 PMAQI
10th Aug 2025507 PMAQI
10th Aug 2025528 PMAQI
10th Aug 2025509 PMAQI
10th Aug 20255110 PMAQI
10th Aug 20255011 PMAQI
11th Aug 20254912 AMAQI
11th Aug 2025451 AMAQI
11th Aug 2025432 AMAQI
11th Aug 2025423 AMAQI
11th Aug 2025404 AMAQI
25°C23/28°C
11th Aug 2025445 AMAQI
5 AM11th Aug 2025426 AMAQI
11th Aug 2025407 AMAQI
11th Aug 2025368 AMAQI
11th Aug 2025339 AMAQI
11th Aug 20253210 AMAQI
11th Aug 20253211 AMAQI
11th Aug 20253212 PMAQI
12 PM11th Aug 2025331 PMAQI
11th Aug 2025322 PMAQI
8 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 8 PM
60AQI
16 hours / Day
480 hours / Month
Avg. Lowest Time
5 AM - 6 PM
60AQI
14 hours / Day
420 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 8 PM (Avg. 60), while the lowest AQI was between 5 AM to 6 PM (Avg. 60).
Night time
Avg. Highest Time
12 AM - 11 PM
60AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 11 PM
60AQI
8 hours / Day
240 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 60), while the lowest AQI was between 12 AM to 11 PM (Avg. 60).
2025 Days Vs Air Quality
Rockford, Illinois, United States
2025
82%
183
16%
35
2%
4
Total number of days with different AQI categories in last 223 days in 2025 (142 days remaining)
Good
183 DaysModerate
35 DaysPoor
4 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 82%
Health Risk Level:
Low
In 2025, 82% of 223 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Rockford, Illinois, United States
AQI levels in 2025
AQI
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.
1st January 2025
29AQI
29AQI
2nd January 2025
25AQI
25AQI
3rd January 2025
22AQI
22AQI
4th January 2025
18AQI
18AQI
5th January 2025
18AQI
18AQI
6th January 2025
18AQI
18AQI
7th January 2025
21AQI
21AQI
8th January 2025
23AQI
23AQI
9th January 2025
43AQI
43AQI
10th January 2025
61AQI
61AQI
11th January 2025
31AQI
31AQI
12th January 2025
39AQI
39AQI
13th January 2025
19AQI
19AQI
14th January 2025
22AQI
22AQI
15th January 2025
26AQI
26AQI
16th January 2025
28AQI
28AQI
17th January 2025
26AQI
26AQI
18th January 2025
20AQI
20AQI
19th January 2025
19AQI
19AQI
20th January 2025
20AQI
20AQI
21st January 2025
20AQI
20AQI
22nd January 2025
22AQI
22AQI
23rd January 2025
26AQI
26AQI
24th January 2025
29AQI
29AQI
25th January 2025
28AQI
28AQI
26th January 2025
22AQI
22AQI
27th January 2025
25AQI
25AQI
28th January 2025
25AQI
25AQI
29th January 2025
22AQI
22AQI
30th January 2025
32AQI
32AQI
31st January 2025
33AQI
33AQI
1st February 2025
21AQI
21AQI
2nd February 2025
46AQI
46AQI
3rd February 2025
44AQI
44AQI
4th February 2025
20AQI
20AQI
5th February 2025
23AQI
23AQI
6th February 2025
29AQI
29AQI
7th February 2025
21AQI
21AQI
8th February 2025
29AQI
29AQI
9th February 2025
25AQI
25AQI
10th February 2025
26AQI
26AQI
11th February 2025
30AQI
30AQI
12th February 2025
30AQI
30AQI
13th February 2025
24AQI
24AQI
14th February 2025
37AQI
37AQI
15th February 2025
48AQI
48AQI
16th February 2025
24AQI
24AQI
17th February 2025
22AQI
22AQI
18th February 2025
22AQI
22AQI
19th February 2025
22AQI
22AQI
20th February 2025
22AQI
22AQI
21st February 2025
29AQI
29AQI
22nd February 2025
37AQI
37AQI
23rd February 2025
58AQI
58AQI
24th February 2025
37AQI
37AQI
25th February 2025
27AQI
27AQI
26th February 2025
34AQI
34AQI
27th February 2025
35AQI
35AQI
28th February 2025
25AQI
25AQI
1st March 2025
26AQI
26AQI
2nd March 2025
26AQI
26AQI
3rd March 2025
35AQI
35AQI
4th March 2025
35AQI
35AQI
5th March 2025
29AQI
29AQI
6th March 2025
26AQI
26AQI
7th March 2025
27AQI
27AQI
8th March 2025
29AQI
29AQI
9th March 2025
27AQI
27AQI
10th March 2025
29AQI
29AQI
11th March 2025
28AQI
28AQI
12th March 2025
30AQI
30AQI
13th March 2025
47AQI
47AQI
14th March 2025
45AQI
45AQI
15th March 2025
65AQI
65AQI
16th March 2025
17AQI
17AQI
17th March 2025
20AQI
20AQI
18th March 2025
27AQI
27AQI
19th March 2025
26AQI
26AQI
20th March 2025
16AQI
16AQI
21st March 2025
21AQI
21AQI
22nd March 2025
18AQI
18AQI
23rd March 2025
22AQI
22AQI
24th March 2025
20AQI
20AQI
25th March 2025
22AQI
22AQI
26th March 2025
37AQI
37AQI
27th March 2025
30AQI
30AQI
28th March 2025
41AQI
41AQI
29th March 2025
28AQI
28AQI
30th March 2025
28AQI
28AQI
31st March 2025
16AQI
16AQI
1st April 2025
21AQI
21AQI
2nd April 2025
29AQI
29AQI
3rd April 2025
20AQI
20AQI
4th April 2025
23AQI
23AQI
5th April 2025
22AQI
22AQI
6th April 2025
23AQI
23AQI
7th April 2025
26AQI
26AQI
8th April 2025
19AQI
19AQI
9th April 2025
36AQI
36AQI
10th April 2025
47AQI
47AQI
11th April 2025
50AQI
50AQI
12th April 2025
49AQI
49AQI
13th April 2025
36AQI
36AQI
14th April 2025
28AQI
28AQI
15th April 2025
19AQI
19AQI
16th April 2025
22AQI
22AQI
17th April 2025
35AQI
35AQI
18th April 2025
49AQI
49AQI
19th April 2025
29AQI
29AQI
20th April 2025
38AQI
38AQI
21st April 2025
16AQI
16AQI
22nd April 2025
31AQI
31AQI
23rd April 2025
28AQI
28AQI
24th April 2025
37AQI
37AQI
25th April 2025
23AQI
23AQI
26th April 2025
17AQI
17AQI
27th April 2025
25AQI
25AQI
28th April 2025
35AQI
35AQI
29th April 2025
28AQI
28AQI
30th April 2025
20AQI
20AQI
1st May 2025
21AQI
21AQI
2nd May 2025
25AQI
25AQI
3rd May 2025
14AQI
14AQI
4th May 2025
21AQI
21AQI
5th May 2025
19AQI
19AQI
6th May 2025
34AQI
34AQI
7th May 2025
36AQI
36AQI
8th May 2025
15AQI
15AQI
9th May 2025
21AQI
21AQI
10th May 2025
37AQI
37AQI
11th May 2025
22AQI
22AQI
12th May 2025
33AQI
33AQI
13th May 2025
36AQI
36AQI
14th May 2025
34AQI
34AQI
15th May 2025
47AQI
47AQI
16th May 2025
29AQI
29AQI
17th May 2025
17AQI
17AQI
18th May 2025
18AQI
18AQI
19th May 2025
15AQI
15AQI
20th May 2025
21AQI
21AQI
21st May 2025
14AQI
14AQI
22nd May 2025
14AQI
14AQI
23rd May 2025
17AQI
17AQI
24th May 2025
20AQI
20AQI
25th May 2025
16AQI
16AQI
26th May 2025
22AQI
22AQI
27th May 2025
20AQI
20AQI
28th May 2025
26AQI
26AQI
29th May 2025
29AQI
29AQI
30th May 2025
38AQI
38AQI
31st May 2025
37AQI
37AQI
1st June 2025
39AQI
39AQI
2nd June 2025
41AQI
41AQI
3rd June 2025
54AQI
54AQI
4th June 2025
62AQI
62AQI
5th June 2025
81AQI
81AQI
6th June 2025
75AQI
75AQI
7th June 2025
75AQI
75AQI
8th June 2025
77AQI
77AQI
9th June 2025
72AQI
72AQI
10th June 2025
61AQI
61AQI
11th June 2025
75AQI
75AQI
12th June 2025
84AQI
84AQI
13th June 2025
66AQI
66AQI
14th June 2025
58AQI
58AQI
15th June 2025
54AQI
54AQI
16th June 2025
53AQI
53AQI
17th June 2025
37AQI
37AQI
18th June 2025
26AQI
26AQI
19th June 2025
28AQI
28AQI
20th June 2025
37AQI
37AQI
21st June 2025
39AQI
39AQI
22nd June 2025
43AQI
43AQI
23rd June 2025
55AQI
55AQI
24th June 2025
27AQI
27AQI
25th June 2025
29AQI
29AQI
26th June 2025
37AQI
37AQI
27th June 2025
23AQI
23AQI
28th June 2025
22AQI
22AQI
29th June 2025
35AQI
35AQI
30th June 2025
26AQI
26AQI
1st July 2025
30AQI
30AQI
2nd July 2025
50AQI
50AQI
3rd July 2025
47AQI
47AQI
4th July 2025
45AQI
45AQI
5th July 2025
62AQI
62AQI
6th July 2025
39AQI
39AQI
7th July 2025
54AQI
54AQI
8th July 2025
59AQI
59AQI
9th July 2025
45AQI
45AQI
10th July 2025
42AQI
42AQI
11th July 2025
27AQI
27AQI
12th July 2025
26AQI
26AQI
13th July 2025
58AQI
58AQI
14th July 2025
74AQI
74AQI
15th July 2025
70AQI
70AQI
16th July 2025
51AQI
51AQI
17th July 2025
23AQI
23AQI
18th July 2025
20AQI
20AQI
19th July 2025
27AQI
27AQI
20th July 2025
26AQI
26AQI
21st July 2025
76AQI
76AQI
22nd July 2025
70AQI
70AQI
23rd July 2025
63AQI
63AQI
24th July 2025
51AQI
51AQI
25th July 2025
28AQI
28AQI
26th July 2025
37AQI
37AQI
27th July 2025
32AQI
32AQI
28th July 2025
30AQI
30AQI
29th July 2025
41AQI
41AQI
30th July 2025
46AQI
46AQI
31st July 2025
144AQI
144AQI
1st August 2025
115AQI
115AQI
2nd August 2025
100AQI
100AQI
3rd August 2025
113AQI
113AQI
4th August 2025
107AQI
107AQI
5th August 2025
79AQI
79AQI
6th August 2025
90AQI
90AQI
7th August 2025
59AQI
59AQI
8th August 2025
56AQI
56AQI
9th August 2025
56AQI
56AQI
10th August 2025
49AQI
49AQI
26AQI
30AQI
29AQI
29AQI
25AQI
50AQI
48AQI
82AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202536AQI
30
1
27
1
30
1
30
31
15
15
19
11
1
1
6
3
183
35
4
Highest AQI recorded in
August82AQI
Lowest AQI recorded in
May25AQI
202430AQI
29
2
23
6
31
30
31
28
1
30
27
4
30
29
2
29
1
30
1
347
17
Highest AQI recorded in
August37AQI
Lowest AQI recorded in
April22AQI
202341AQI
23
8
25
3
25
5
26
3
29
2
8
17
2
2
1
23
5
3
16
15
26
4
25
6
25
4
27
4
278
76
5
2
1
Highest AQI recorded in
June81AQI
Lowest AQI recorded in
February33AQI
202234AQI
27
4
17
4
27
4
29
1
28
3
27
3
22
2
2
29
24
7
24
6
25
6
281
40
Highest AQI recorded in
November39AQI
Lowest AQI recorded in
September28AQI
202140AQI
19
11
8
10
2
1
18
8
24
1
29
2
29
1
17
14
22
8
30
29
2
20
8
23
8
268
73
2
1
Highest AQI recorded in
February70AQI
Lowest AQI recorded in
September30AQI
202037AQI
11
2
19
1
17
28
2
24
7
27
4
25
4
28
2
20
8
20
9
219
39
Highest AQI recorded in
December44AQI
Lowest AQI recorded in
May30AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
41AQILeast Polluted Year Recorded
2024(Avg.)
30AQIRockford's annual 2025 AQI (36) shows an average percentage change of 0.2% (worsened AQI) compared to previous years: 2020 (37), 2021 (40), 2022 (34), 2023 (41), 2024 (30).
