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Houston, Texas, 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+

October Air Quality Analysis

Houston, Texas, United States

2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
2nd Oct 2025
74AQI
Lowest AQI recorded on
5th Oct 2025
56AQI

Same Day Analysis (12th October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 68 of Moderate air quality on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 12th Oct - 13th Oct 2025

Houston, Texas, United States

AQI
Day
Night
.

7 AM12th Oct 2025

7 PM

6 AM13th Oct 2025

Day time
Avg. Highest Time
9AM12th Oct

69AQI

Avg. Lowest Time
6PM12th Oct

55AQI

Night time
Avg. Highest Time
1AM13th Oct

64AQI

Avg. Lowest Time
6AM13th Oct

18AQI

In the last 24 hours,

Houston's AQI reached its highest point of 69 at 9 AM during the Day, while the lowest point, 18, was recorded at 6 AM during the Night between 12th Oct and 13th Oct 2025.

Day & Night AQI Trend : Sep - Oct 2025

Houston, Texas, United States

SepOct
13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th
Day
Night
13th Sep 2025567 AMAQI
13th Sep 2025558 AMAQI
13th Sep 2025579 AMAQI
13th Sep 20256010 AMAQI
13th Sep 20256111 AMAQI
13th Sep 20256012 PMAQI
13th Sep 2025591 PMAQI
13th Sep 2025602 PMAQI
13th Sep 2025623 PMAQI
13th Sep 2025604 PMAQI
13th Sep 2025605 PMAQI
13th Sep 2025596 PMAQI
13th Sep 2025587 PMAQI
13th Sep 2025588 PMAQI
13th Sep 2025569 PMAQI
13th Sep 20255510 PMAQI
13th Sep 20255811 PMAQI
14th Sep 20255812 AMAQI
14th Sep 2025581 AMAQI
14th Sep 2025572 AMAQI
14th Sep 2025583 AMAQI
14th Sep 2025574 AMAQI
14th Sep 2025575 AMAQI
14th Sep 2025576 AMAQI

28°C22/34°C

14th Sep 2025587 AMAQI
14th Sep 2025578 AMAQI
14th Sep 2025579 AMAQI
14th Sep 20255810 AMAQI
14th Sep 20255811 AMAQI
14th Sep 20255912 PMAQI
14th Sep 2025581 PMAQI
14th Sep 2025592 PMAQI
14th Sep 2025583 PMAQI
14th Sep 2025564 PMAQI
14th Sep 2025565 PMAQI
14th Sep 2025566 PMAQI
14th Sep 2025557 PMAQI
14th Sep 2025548 PMAQI
14th Sep 2025559 PMAQI
14th Sep 20255410 PMAQI
14th Sep 20255311 PMAQI
15th Sep 20255512 AMAQI
15th Sep 2025551 AMAQI
15th Sep 2025562 AMAQI
15th Sep 2025543 AMAQI
15th Sep 2025554 AMAQI
15th Sep 2025565 AMAQI
15th Sep 2025576 AMAQI

28°C22/34°C

15th Sep 2025537 AMAQI
15th Sep 2025498 AMAQI
15th Sep 2025639 AMAQI
15th Sep 20255910 AMAQI
15th Sep 20255811 AMAQI
15th Sep 20255712 PMAQI
15th Sep 2025561 PMAQI
15th Sep 2025562 PMAQI
15th Sep 2025543 PMAQI
15th Sep 2025544 PMAQI
15th Sep 2025525 PMAQI
15th Sep 2025526 PMAQI
15th Sep 2025547 PMAQI
15th Sep 2025558 PMAQI
15th Sep 2025549 PMAQI
15th Sep 20255310 PMAQI
15th Sep 20255111 PMAQI
16th Sep 20255012 AMAQI
16th Sep 2025521 AMAQI
16th Sep 2025512 AMAQI
16th Sep 2025513 AMAQI
16th Sep 2025534 AMAQI
16th Sep 2025525 AMAQI
16th Sep 2025536 AMAQI

28°C24/36°C

16th Sep 2025547 AMAQI
16th Sep 2025568 AMAQI
16th Sep 2025559 AMAQI
16th Sep 20255610 AMAQI
16th Sep 20255611 AMAQI
16th Sep 20255812 PMAQI
16th Sep 2025561 PMAQI
16th Sep 2025552 PMAQI
16th Sep 2025553 PMAQI
16th Sep 2025564 PMAQI
16th Sep 2025565 PMAQI
16th Sep 2025566 PMAQI
16th Sep 2025537 PMAQI
16th Sep 2025538 PMAQI
16th Sep 2025539 PMAQI
16th Sep 20255310 PMAQI
16th Sep 20255511 PMAQI
17th Sep 20255412 AMAQI
17th Sep 2025531 AMAQI
17th Sep 2025542 AMAQI
17th Sep 2025553 AMAQI
17th Sep 2025564 AMAQI
17th Sep 2025575 AMAQI
17th Sep 2025576 AMAQI

29°C23/37°C

17th Sep 2025587 AMAQI
17th Sep 2025598 AMAQI
17th Sep 2025609 AMAQI
17th Sep 20256110 AMAQI
17th Sep 20255811 AMAQI
17th Sep 20255812 PMAQI
17th Sep 2025571 PMAQI
17th Sep 2025582 PMAQI
17th Sep 2025583 PMAQI
17th Sep 2025574 PMAQI
17th Sep 2025585 PMAQI
17th Sep 2025596 PMAQI
17th Sep 2025587 PMAQI
17th Sep 2025578 PMAQI
17th Sep 2025589 PMAQI
17th Sep 20255710 PMAQI
17th Sep 20255511 PMAQI
18th Sep 20255412 AMAQI
18th Sep 2025541 AMAQI
18th Sep 2025522 AMAQI
18th Sep 2025513 AMAQI
18th Sep 2025504 AMAQI
18th Sep 2025495 AMAQI
18th Sep 2025506 AMAQI

29°C23/37°C

18th Sep 2025537 AMAQI
18th Sep 2025558 AMAQI
18th Sep 2025569 AMAQI
18th Sep 20255610 AMAQI
18th Sep 20255611 AMAQI
18th Sep 20255512 PMAQI
18th Sep 2025561 PMAQI
18th Sep 2025572 PMAQI
18th Sep 2025563 PMAQI
18th Sep 2025574 PMAQI
18th Sep 2025575 PMAQI
18th Sep 2025566 PMAQI
18th Sep 2025547 PMAQI
18th Sep 2025548 PMAQI
18th Sep 2025549 PMAQI
18th Sep 20255210 PMAQI
18th Sep 20255211 PMAQI
19th Sep 20255212 AMAQI
19th Sep 2025521 AMAQI
19th Sep 2025522 AMAQI
19th Sep 2025513 AMAQI
19th Sep 2025514 AMAQI
19th Sep 2025515 AMAQI
19th Sep 2025546 AMAQI

29°C24/37°C

19th Sep 2025557 AMAQI
19th Sep 2025558 AMAQI
19th Sep 2025549 AMAQI
19th Sep 20255410 AMAQI
19th Sep 20255211 AMAQI
19th Sep 20255212 PMAQI
19th Sep 2025511 PMAQI
19th Sep 2025512 PMAQI
19th Sep 2025513 PMAQI
19th Sep 2025514 PMAQI
19th Sep 2025505 PMAQI
19th Sep 2025516 PMAQI
19th Sep 2025517 PMAQI
19th Sep 2025528 PMAQI
19th Sep 2025529 PMAQI
19th Sep 20255010 PMAQI
19th Sep 20254311 PMAQI
20th Sep 20254212 AMAQI
20th Sep 2025421 AMAQI
20th Sep 2025352 AMAQI
20th Sep 2025293 AMAQI
20th Sep 2025304 AMAQI
20th Sep 2025325 AMAQI
20th Sep 2025326 AMAQI

28°C23/36°C

20th Sep 2025377 AMAQI
20th Sep 2025358 AMAQI
20th Sep 2025379 AMAQI
20th Sep 20254010 AMAQI
20th Sep 20254011 AMAQI
20th Sep 20254012 PMAQI
20th Sep 2025401 PMAQI
20th Sep 2025412 PMAQI
20th Sep 2025403 PMAQI
20th Sep 2025424 PMAQI
20th Sep 2025415 PMAQI
20th Sep 2025416 PMAQI
20th Sep 2025377 PMAQI
20th Sep 2025368 PMAQI
20th Sep 2025369 PMAQI
20th Sep 20253610 PMAQI
20th Sep 20253511 PMAQI
21st Sep 20253512 AMAQI
21st Sep 2025341 AMAQI
21st Sep 2025292 AMAQI
21st Sep 2025273 AMAQI
21st Sep 2025284 AMAQI
21st Sep 2025275 AMAQI
21st Sep 2025286 AMAQI

28°C24/33°C

21st Sep 2025287 AMAQI
21st Sep 2025278 AMAQI
21st Sep 2025289 AMAQI
21st Sep 20252810 AMAQI
21st Sep 20253011 AMAQI
21st Sep 20253312 PMAQI
21st Sep 2025331 PMAQI
21st Sep 2025362 PMAQI
21st Sep 2025393 PMAQI
21st Sep 2025344 PMAQI
21st Sep 2025345 PMAQI
21st Sep 2025336 PMAQI
21st Sep 2025297 PMAQI
21st Sep 2025298 PMAQI
21st Sep 2025309 PMAQI
21st Sep 20253010 PMAQI
21st Sep 20252911 PMAQI
22nd Sep 20252912 AMAQI
22nd Sep 2025291 AMAQI
22nd Sep 2025282 AMAQI
22nd Sep 2025303 AMAQI
22nd Sep 2025324 AMAQI
22nd Sep 2025305 AMAQI
22nd Sep 2025306 AMAQI

28°C24/36°C

22nd Sep 2025307 AMAQI
22nd Sep 2025328 AMAQI
22nd Sep 2025349 AMAQI
22nd Sep 20253210 AMAQI
22nd Sep 20253811 AMAQI
22nd Sep 20253612 PMAQI
22nd Sep 2025341 PMAQI
22nd Sep 2025332 PMAQI
22nd Sep 2025303 PMAQI
22nd Sep 2025304 PMAQI
22nd Sep 2025285 PMAQI
22nd Sep 2025286 PMAQI
22nd Sep 2025297 PMAQI
22nd Sep 2025298 PMAQI
22nd Sep 2025299 PMAQI
22nd Sep 20252910 PMAQI
22nd Sep 20252311 PMAQI
23rd Sep 20252312 AMAQI
23rd Sep 2025241 AMAQI
23rd Sep 2025242 AMAQI
23rd Sep 2025243 AMAQI
23rd Sep 2025244 AMAQI
23rd Sep 2025245 AMAQI
23rd Sep 2025246 AMAQI

29°C24/34°C

23rd Sep 2025247 AMAQI
23rd Sep 2025258 AMAQI
23rd Sep 2025289 AMAQI
23rd Sep 20253310 AMAQI
23rd Sep 20253311 AMAQI
23rd Sep 20253412 PMAQI
23rd Sep 2025311 PMAQI
23rd Sep 2025312 PMAQI
23rd Sep 2025293 PMAQI
23rd Sep 2025294 PMAQI
23rd Sep 2025275 PMAQI
23rd Sep 2025286 PMAQI
23rd Sep 2025277 PMAQI
23rd Sep 2025278 PMAQI
23rd Sep 2025269 PMAQI
23rd Sep 20252610 PMAQI
23rd Sep 20252511 PMAQI
24th Sep 20252412 AMAQI
24th Sep 2025241 AMAQI
24th Sep 2025242 AMAQI
24th Sep 2025243 AMAQI
24th Sep 2025244 AMAQI
24th Sep 2025255 AMAQI
24th Sep 2025276 AMAQI

30°C25/35°C

24th Sep 2025287 AMAQI
24th Sep 2025278 AMAQI
24th Sep 2025279 AMAQI
24th Sep 20252910 AMAQI
24th Sep 20253311 AMAQI
24th Sep 20253512 PMAQI
24th Sep 2025331 PMAQI
24th Sep 2025312 PMAQI
24th Sep 2025283 PMAQI
24th Sep 2025254 PMAQI
24th Sep 2025255 PMAQI
24th Sep 2025266 PMAQI
24th Sep 2025287 PMAQI
24th Sep 2025268 PMAQI
24th Sep 2025269 PMAQI
24th Sep 20252610 PMAQI
24th Sep 20252511 PMAQI
25th Sep 20252212 AMAQI
25th Sep 2025241 AMAQI
25th Sep 2025252 AMAQI
25th Sep 2025273 AMAQI
25th Sep 2025264 AMAQI
25th Sep 2025335 AMAQI
25th Sep 2025336 AMAQI

30°C26/36°C

25th Sep 2025347 AMAQI
25th Sep 2025368 AMAQI
25th Sep 2025389 AMAQI
25th Sep 20253610 AMAQI
25th Sep 20253811 AMAQI
25th Sep 20253312 PMAQI
25th Sep 2025411 PMAQI
25th Sep 2025452 PMAQI
25th Sep 2025453 PMAQI
25th Sep 2025424 PMAQI
25th Sep 2025415 PMAQI
25th Sep 2025416 PMAQI
25th Sep 2025407 PMAQI
25th Sep 2025378 PMAQI
25th Sep 2025329 PMAQI
25th Sep 20253310 PMAQI
25th Sep 20253511 PMAQI
26th Sep 20254512 AMAQI
26th Sep 2025491 AMAQI
26th Sep 2025502 AMAQI
26th Sep 2025513 AMAQI
26th Sep 2025534 AMAQI
26th Sep 2025535 AMAQI
26th Sep 2025526 AMAQI

29°C23/36°C

26th Sep 2025537 AMAQI
26th Sep 2025558 AMAQI
26th Sep 2025549 AMAQI
26th Sep 20255110 AMAQI
26th Sep 20254811 AMAQI
26th Sep 20254412 PMAQI
26th Sep 2025391 PMAQI
26th Sep 2025392 PMAQI
26th Sep 2025393 PMAQI
26th Sep 2025384 PMAQI
26th Sep 2025365 PMAQI
26th Sep 2025356 PMAQI
26th Sep 2025347 PMAQI
26th Sep 2025358 PMAQI
26th Sep 2025369 PMAQI
26th Sep 20253910 PMAQI
26th Sep 20255311 PMAQI
27th Sep 20255312 AMAQI
27th Sep 2025521 AMAQI
27th Sep 2025532 AMAQI
27th Sep 2025543 AMAQI
27th Sep 2025534 AMAQI
27th Sep 2025555 AMAQI
27th Sep 2025586 AMAQI

27°C21/33°C

27th Sep 2025547 AMAQI
27th Sep 2025558 AMAQI
27th Sep 2025559 AMAQI
27th Sep 20255610 AMAQI
27th Sep 20255611 AMAQI
27th Sep 20255312 PMAQI
27th Sep 2025491 PMAQI
27th Sep 2025442 PMAQI
27th Sep 2025323 PMAQI
27th Sep 2025354 PMAQI
27th Sep 2025335 PMAQI
27th Sep 2025316 PMAQI
27th Sep 2025287 PMAQI
27th Sep 2025288 PMAQI
27th Sep 2025369 PMAQI
27th Sep 20254810 PMAQI
27th Sep 20255211 PMAQI
28th Sep 20255312 AMAQI
28th Sep 2025571 AMAQI
28th Sep 2025572 AMAQI
28th Sep 2025533 AMAQI
28th Sep 2025544 AMAQI
28th Sep 2025525 AMAQI
28th Sep 2025526 AMAQI

26°C18/35°C

28th Sep 2025517 AMAQI
28th Sep 2025478 AMAQI
28th Sep 2025479 AMAQI
28th Sep 20254710 AMAQI
28th Sep 20255011 AMAQI
28th Sep 20254712 PMAQI
28th Sep 2025381 PMAQI
28th Sep 2025352 PMAQI
28th Sep 2025353 PMAQI
28th Sep 2025304 PMAQI
28th Sep 2025305 PMAQI
28th Sep 2025316 PMAQI
28th Sep 2025317 PMAQI
28th Sep 2025308 PMAQI
28th Sep 2025379 PMAQI
28th Sep 20255010 PMAQI
28th Sep 20254511 PMAQI
29th Sep 20254812 AMAQI
29th Sep 2025491 AMAQI
29th Sep 2025472 AMAQI
29th Sep 2025453 AMAQI
29th Sep 2025454 AMAQI
29th Sep 2025435 AMAQI
29th Sep 2025456 AMAQI

26°C19/35°C

29th Sep 2025477 AMAQI
29th Sep 2025428 AMAQI
29th Sep 2025439 AMAQI
29th Sep 20254810 AMAQI
29th Sep 20254811 AMAQI
29th Sep 20254712 PMAQI
29th Sep 2025391 PMAQI
29th Sep 2025292 PMAQI
29th Sep 2025303 PMAQI
29th Sep 2025314 PMAQI
29th Sep 2025265 PMAQI
29th Sep 2025266 PMAQI
29th Sep 2025307 PMAQI
29th Sep 2025348 PMAQI
29th Sep 2025289 PMAQI
29th Sep 20253210 PMAQI
29th Sep 20255111 PMAQI
30th Sep 20255312 AMAQI
30th Sep 2025561 AMAQI
30th Sep 2025562 AMAQI
30th Sep 2025573 AMAQI
30th Sep 2025604 AMAQI
30th Sep 2025635 AMAQI
30th Sep 2025606 AMAQI

27°C19/36°C

30th Sep 2025597 AMAQI
30th Sep 2025538 AMAQI
30th Sep 2025499 AMAQI
30th Sep 20255010 AMAQI
30th Sep 20255411 AMAQI
30th Sep 20255412 PMAQI
30th Sep 2025461 PMAQI
30th Sep 2025462 PMAQI
30th Sep 2025403 PMAQI
30th Sep 2025324 PMAQI
30th Sep 2025275 PMAQI
30th Sep 2025256 PMAQI
30th Sep 2025317 PMAQI
30th Sep 2025298 PMAQI
30th Sep 2025319 PMAQI
30th Sep 20254010 PMAQI
30th Sep 20254911 PMAQI
1st Oct 20255412 AMAQI
1st Oct 2025531 AMAQI
1st Oct 2025552 AMAQI
1st Oct 2025563 AMAQI
1st Oct 2025554 AMAQI
1st Oct 2025545 AMAQI
1st Oct 2025616 AMAQI

28°C20/37°C

1st Oct 2025727 AMAQI
1st Oct 2025668 AMAQI
1st Oct 2025619 AMAQI
1st Oct 20256610 AMAQI
1st Oct 20256911 AMAQI
1st Oct 20257312 PMAQI
1st Oct 2025681 PMAQI
1st Oct 2025682 PMAQI
1st Oct 2025693 PMAQI
1st Oct 2025634 PMAQI
1st Oct 2025695 PMAQI
1st Oct 2025626 PMAQI
1st Oct 2025617 PMAQI
1st Oct 2025648 PMAQI
1st Oct 2025689 PMAQI
1st Oct 20256810 PMAQI
1st Oct 20256611 PMAQI
2nd Oct 20256912 AMAQI
2nd Oct 2025661 AMAQI
2nd Oct 2025672 AMAQI
2nd Oct 2025643 AMAQI
2nd Oct 2025644 AMAQI
2nd Oct 2025625 AMAQI
2nd Oct 2025646 AMAQI

28°C20/35°C

2nd Oct 2025647 AMAQI
2nd Oct 2025688 AMAQI
2nd Oct 2025669 AMAQI
2nd Oct 20257210 AMAQI
2nd Oct 20258211 AMAQI
2nd Oct 20257812 PMAQI
2nd Oct 2025731 PMAQI
2nd Oct 2025682 PMAQI
2nd Oct 2025643 PMAQI
2nd Oct 2025604 PMAQI
2nd Oct 2025615 PMAQI
2nd Oct 2025626 PMAQI
2nd Oct 2025627 PMAQI
2nd Oct 2025628 PMAQI
2nd Oct 2025619 PMAQI
2nd Oct 20256210 PMAQI
2nd Oct 20256711 PMAQI
3rd Oct 20257412 AMAQI
3rd Oct 2025751 AMAQI
3rd Oct 2025702 AMAQI
3rd Oct 2025673 AMAQI
3rd Oct 2025554 AMAQI
3rd Oct 2025545 AMAQI
3rd Oct 2025486 AMAQI

28°C21/37°C

3rd Oct 2025557 AMAQI
3rd Oct 2025578 AMAQI
3rd Oct 2025579 AMAQI
3rd Oct 20255710 AMAQI
3rd Oct 20256011 AMAQI
3rd Oct 20256612 PMAQI
3rd Oct 2025691 PMAQI
3rd Oct 2025602 PMAQI
3rd Oct 2025573 PMAQI
3rd Oct 2025564 PMAQI
3rd Oct 2025575 PMAQI
3rd Oct 2025576 PMAQI
3rd Oct 2025557 PMAQI
3rd Oct 2025608 PMAQI
3rd Oct 2025609 PMAQI
3rd Oct 20256210 PMAQI
3rd Oct 20256711 PMAQI
4th Oct 20256912 AMAQI
4th Oct 2025721 AMAQI
4th Oct 2025722 AMAQI
4th Oct 2025723 AMAQI
4th Oct 2025724 AMAQI
4th Oct 2025695 AMAQI
4th Oct 2025666 AMAQI

27°C22/33°C

4th Oct 2025657 AMAQI
4th Oct 2025668 AMAQI
4th Oct 2025679 AMAQI
4th Oct 20256710 AMAQI
4th Oct 20256711 AMAQI
4th Oct 20256412 PMAQI
4th Oct 2025621 PMAQI
4th Oct 2025582 PMAQI
4th Oct 2025513 PMAQI
4th Oct 2025514 PMAQI
4th Oct 2025475 PMAQI
4th Oct 2025436 PMAQI
4th Oct 2025467 PMAQI
4th Oct 2025528 PMAQI
4th Oct 2025539 PMAQI
4th Oct 20255610 PMAQI
4th Oct 20255811 PMAQI
5th Oct 20255812 AMAQI
5th Oct 2025601 AMAQI
5th Oct 2025642 AMAQI
5th Oct 2025623 AMAQI
5th Oct 2025574 AMAQI
5th Oct 2025545 AMAQI
5th Oct 2025536 AMAQI

26°C21/32°C

5th Oct 2025537 AMAQI
5th Oct 2025558 AMAQI
5th Oct 2025549 AMAQI
5th Oct 20255610 AMAQI
5th Oct 20255411 AMAQI
5th Oct 20255512 PMAQI
5th Oct 2025561 PMAQI
5th Oct 2025532 PMAQI
5th Oct 2025503 PMAQI
5th Oct 2025504 PMAQI
5th Oct 2025415 PMAQI
5th Oct 2025386 PMAQI
5th Oct 2025367 PMAQI
5th Oct 2025438 PMAQI
5th Oct 2025459 PMAQI
5th Oct 20254810 PMAQI
5th Oct 20255211 PMAQI
6th Oct 20255412 AMAQI
6th Oct 2025541 AMAQI
6th Oct 2025592 AMAQI
6th Oct 2025583 AMAQI
6th Oct 2025534 AMAQI
6th Oct 2025505 AMAQI
6th Oct 2025486 AMAQI

27°C22/35°C

6th Oct 2025517 AMAQI
6th Oct 2025538 AMAQI
6th Oct 2025529 AMAQI
6th Oct 20255610 AMAQI
6th Oct 20255911 AMAQI
6th Oct 20256112 PMAQI
6th Oct 2025581 PMAQI
7th Oct 2025384 AMAQI
7th Oct 202575 AMAQI
7th Oct 2025456 AMAQI

27°C22/34°C

7th Oct 2025357 AMAQI
7th Oct 2025478 AMAQI
7th Oct 2025489 AMAQI
7th Oct 20255010 AMAQI
7th Oct 20255111 AMAQI
7th Oct 20255112 PMAQI
7th Oct 2025771 PMAQI
7th Oct 2025862 PMAQI
7th Oct 2025853 PMAQI
7th Oct 2025564 PMAQI
7th Oct 2025555 PMAQI
7th Oct 2025566 PMAQI
7th Oct 2025557 PMAQI
7th Oct 2025548 PMAQI
7th Oct 2025529 PMAQI
7th Oct 20255410 PMAQI
7th Oct 20255211 PMAQI
8th Oct 20255312 AMAQI
8th Oct 2025501 AMAQI
8th Oct 2025522 AMAQI
8th Oct 2025493 AMAQI
8th Oct 2025514 AMAQI
8th Oct 2025515 AMAQI
8th Oct 2025516 AMAQI

29°C23/36°C

8th Oct 2025527 AMAQI
8th Oct 2025548 AMAQI
8th Oct 2025579 AMAQI
8th Oct 20256010 AMAQI
8th Oct 20255711 AMAQI
8th Oct 20256012 PMAQI
8th Oct 2025621 PMAQI
8th Oct 2025602 PMAQI
8th Oct 2025543 PMAQI
8th Oct 2025554 PMAQI
8th Oct 2025555 PMAQI
8th Oct 2025526 PMAQI
8th Oct 2025497 PMAQI
8th Oct 2025528 PMAQI
8th Oct 2025629 PMAQI
8th Oct 20257210 PMAQI
8th Oct 20256111 PMAQI
9th Oct 20256212 AMAQI
9th Oct 2025621 AMAQI
9th Oct 2025612 AMAQI
9th Oct 2025613 AMAQI
9th Oct 2025574 AMAQI
9th Oct 2025535 AMAQI
9th Oct 2025526 AMAQI

29°C23/35°C

9th Oct 2025537 AMAQI
9th Oct 2025538 AMAQI
9th Oct 2025549 AMAQI
9th Oct 20255810 AMAQI
9th Oct 20255711 AMAQI
9th Oct 20255612 PMAQI
9th Oct 2025571 PMAQI
9th Oct 2025542 PMAQI
9th Oct 2025523 PMAQI
9th Oct 2025524 PMAQI
9th Oct 2025525 PMAQI
9th Oct 2025506 PMAQI
9th Oct 2025507 PMAQI
9th Oct 2025498 PMAQI
9th Oct 2025539 PMAQI
9th Oct 20256010 PMAQI
9th Oct 20256011 PMAQI
10th Oct 20256212 AMAQI
10th Oct 2025581 AMAQI
10th Oct 2025622 AMAQI
10th Oct 2025643 AMAQI
10th Oct 2025604 AMAQI
10th Oct 2025545 AMAQI
10th Oct 2025576 AMAQI

28°C23/34°C

10th Oct 2025567 AMAQI
10th Oct 2025578 AMAQI
10th Oct 2025639 AMAQI
10th Oct 20256210 AMAQI
10th Oct 20256211 AMAQI
10th Oct 20256412 PMAQI
10th Oct 2025631 PMAQI
10th Oct 2025622 PMAQI
10th Oct 2025573 PMAQI
10th Oct 2025544 PMAQI
10th Oct 2025535 PMAQI
10th Oct 2025506 PMAQI
10th Oct 2025507 PMAQI
10th Oct 2025528 PMAQI
10th Oct 2025549 PMAQI
10th Oct 20255610 PMAQI
10th Oct 20255911 PMAQI
11th Oct 20256312 AMAQI
11th Oct 2025621 AMAQI
11th Oct 2025612 AMAQI
11th Oct 2025613 AMAQI
11th Oct 2025584 AMAQI
11th Oct 2025585 AMAQI
11th Oct 2025546 AMAQI

27°C20/36°C

11th Oct 2025567 AMAQI
11th Oct 2025568 AMAQI
11th Oct 2025579 AMAQI
11th Oct 20256010 AMAQI
11th Oct 20256011 AMAQI
11th Oct 20256512 PMAQI
11th Oct 2025691 PMAQI
11th Oct 2025642 PMAQI
11th Oct 2025573 PMAQI
11th Oct 2025574 PMAQI
11th Oct 2025555 PMAQI
11th Oct 2025566 PMAQI
11th Oct 2025537 PMAQI
11th Oct 2025598 PMAQI
11th Oct 2025609 PMAQI
11th Oct 20256210 PMAQI
11th Oct 20255911 PMAQI
12th Oct 20256112 AMAQI
12th Oct 2025631 AMAQI
12th Oct 2025632 AMAQI
12th Oct 2025663 AMAQI
12th Oct 2025674 AMAQI
12th Oct 2025675 AMAQI
12th Oct 2025626 AMAQI

25°C16/35°C

12th Oct 2025627 AMAQI
12th Oct 2025688 AMAQI
12th Oct 2025699 AMAQI
12th Oct 20256510 AMAQI
12th Oct 20256611 AMAQI
12th Oct 20256112 PMAQI
12th Oct 2025601 PMAQI
12th Oct 2025602 PMAQI
12th Oct 2025593 PMAQI
12th Oct 2025594 PMAQI
12th Oct 2025575 PMAQI
12th Oct 2025556 PMAQI
12th Oct 2025557 PMAQI
12th Oct 2025568 PMAQI
12th Oct 2025599 PMAQI
12th Oct 20256210 PMAQI
12th Oct 20255811 PMAQI
13th Oct 20256112 AMAQI
13th Oct 2025641 AMAQI
13th Oct 2025642 AMAQI
13th Oct 2025633 AMAQI
13th Oct 2025624 AMAQI
13th Oct 2025535 AMAQI
13th Oct 2025186 AMAQI

25°C17/34°C

7 AM
1 PM
7 PM
1 AM
6 AM

--°C/°C

Day time
Avg. Highest Time
7 AM - 2 PM

52AQI

8 hours / Day
240 hours / Month
Avg. Lowest Time
4 PM - 7 PM

46AQI

4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 AM to 2 PM (Avg. 52), while the lowest AQI was between 4 PM to 7 PM (Avg. 46).
Night time
Avg. Highest Time
12 AM - 4 AM

51AQI

5 hours / Day
150 hours / Month
Avg. Lowest Time
8 PM - 9 PM

47AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 4 AM (Avg. 51), while the lowest AQI was between 8 PM to 9 PM (Avg. 47).

2025 Days Vs Air Quality

Houston, Texas, United States

2025

47%

93

54%

107

Total number of days with different AQI categories in last 286 days in 2025 (79 days remaining)

Good
93 Days
Moderate
107 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 47%

Health Risk Level:

Significant

In 2025, 47% of 286 days were within WHO’s safe air quality limits, and 53% exceeded them. The risk of health issues is Significant, especially for those with existing respiratory or heart conditions.

Annual Air Quality Insights

Houston, Texas, 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.

-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
2nd January 2025
3rd January 2025
4th January 2025
5th January 2025
6th January 2025
7th January 2025
8th January 2025
9th January 2025
10th January 2025
11th January 2025
12th January 2025
13th January 2025
14th January 2025
15th January 2025
16th January 2025
17th January 2025
18th January 2025
19th January 2025
20th January 2025
21st January 2025
22nd January 2025
23rd January 2025
24th January 2025
25th January 2025
26th January 2025
27th January 2025
28th January 2025
29th January 2025
30th January 2025
31st January 2025
1st February 2025
2nd February 2025
3rd February 2025
4th February 2025
5th February 2025
6th February 2025
7th February 2025
8th February 2025
9th February 2025
10th February 2025
11th February 2025
12th February 2025
13th February 2025
14th February 2025
15th February 2025
16th February 2025
17th February 2025
18th February 2025
19th February 2025
20th February 2025
21st February 2025
22nd February 2025
23rd February 2025
24th February 2025
25th February 2025
26th February 2025
27th February 2025
28th February 2025
1st March 2025
2nd March 2025
3rd March 2025
4th March 2025
5th March 2025
6th March 2025
7th March 2025
8th March 2025
9th March 2025
10th March 2025
11th March 2025
12th March 2025
13th March 2025
14th March 2025
15th March 2025
16th March 2025
17th March 2025
18th March 2025
19th March 2025
20th March 2025
21st March 2025
22nd March 2025
23rd March 2025
24th March 2025
25th March 2025
26th March 2025
27th March 2025
46AQI
28th March 2025
43AQI
29th March 2025
49AQI
30th March 2025
60AQI
31st March 2025
59AQI
1st April 2025
63AQI
2nd April 2025
57AQI
3rd April 2025
59AQI
4th April 2025
58AQI
5th April 2025
55AQI
6th April 2025
31AQI
7th April 2025
32AQI
8th April 2025
53AQI
9th April 2025
45AQI
10th April 2025
37AQI
11th April 2025
43AQI
12th April 2025
54AQI
13th April 2025
38AQI
14th April 2025
39AQI
15th April 2025
46AQI
16th April 2025
54AQI
17th April 2025
41AQI
18th April 2025
49AQI
19th April 2025
58AQI
20th April 2025
58AQI
21st April 2025
46AQI
22nd April 2025
53AQI
23rd April 2025
53AQI
24th April 2025
59AQI
25th April 2025
54AQI
26th April 2025
56AQI
27th April 2025
47AQI
28th April 2025
46AQI
29th April 2025
42AQI
30th April 2025
52AQI
1st May 2025
54AQI
2nd May 2025
48AQI
3rd May 2025
34AQI
4th May 2025
31AQI
5th May 2025
40AQI
6th May 2025
48AQI
7th May 2025
44AQI
8th May 2025
49AQI
9th May 2025
33AQI
10th May 2025
37AQI
11th May 2025
37AQI
12th May 2025
38AQI
13th May 2025
48AQI
14th May 2025
49AQI
15th May 2025
57AQI
16th May 2025
56AQI
17th May 2025
59AQI
18th May 2025
53AQI
19th May 2025
56AQI
20th May 2025
62AQI
21st May 2025
48AQI
22nd May 2025
53AQI
23rd May 2025
51AQI
24th May 2025
51AQI
25th May 2025
58AQI
26th May 2025
53AQI
27th May 2025
40AQI
28th May 2025
43AQI
29th May 2025
43AQI
30th May 2025
50AQI
31st May 2025
48AQI
1st June 2025
54AQI
2nd June 2025
52AQI
3rd June 2025
50AQI
4th June 2025
50AQI
5th June 2025
57AQI
6th June 2025
56AQI
7th June 2025
60AQI
8th June 2025
52AQI
9th June 2025
52AQI
10th June 2025
56AQI
11th June 2025
48AQI
12th June 2025
37AQI
13th June 2025
49AQI
14th June 2025
55AQI
15th June 2025
54AQI
16th June 2025
39AQI
17th June 2025
49AQI
18th June 2025
59AQI
19th June 2025
57AQI
20th June 2025
57AQI
21st June 2025
56AQI
22nd June 2025
56AQI
23rd June 2025
43AQI
24th June 2025
40AQI
25th June 2025
40AQI
26th June 2025
39AQI
27th June 2025
41AQI
28th June 2025
42AQI
29th June 2025
41AQI
30th June 2025
59AQI
1st July 2025
58AQI
2nd July 2025
67AQI
3rd July 2025
60AQI
4th July 2025
54AQI
5th July 2025
70AQI
6th July 2025
64AQI
7th July 2025
61AQI
8th July 2025
54AQI
9th July 2025
48AQI
10th July 2025
54AQI
11th July 2025
54AQI
12th July 2025
45AQI
13th July 2025
40AQI
14th July 2025
42AQI
15th July 2025
51AQI
16th July 2025
58AQI
17th July 2025
58AQI
18th July 2025
54AQI
19th July 2025
47AQI
20th July 2025
47AQI
21st July 2025
45AQI
22nd July 2025
42AQI
23rd July 2025
41AQI
24th July 2025
39AQI
25th July 2025
39AQI
26th July 2025
40AQI
27th July 2025
43AQI
28th July 2025
55AQI
29th July 2025
59AQI
30th July 2025
62AQI
31st July 2025
57AQI
1st August 2025
52AQI
2nd August 2025
45AQI
3rd August 2025
52AQI
4th August 2025
52AQI
5th August 2025
54AQI
6th August 2025
46AQI
7th August 2025
40AQI
8th August 2025
42AQI
9th August 2025
44AQI
10th August 2025
41AQI
11th August 2025
44AQI
12th August 2025
50AQI
13th August 2025
47AQI
14th August 2025
43AQI
15th August 2025
47AQI
16th August 2025
44AQI
17th August 2025
54AQI
18th August 2025
48AQI
19th August 2025
53AQI
20th August 2025
57AQI
21st August 2025
57AQI
22nd August 2025
53AQI
23rd August 2025
46AQI
24th August 2025
50AQI
25th August 2025
55AQI
26th August 2025
59AQI
27th August 2025
51AQI
28th August 2025
52AQI
29th August 2025
54AQI
30th August 2025
49AQI
31st August 2025
38AQI
1st September 2025
52AQI
2nd September 2025
47AQI
3rd September 2025
52AQI
4th September 2025
54AQI
5th September 2025
47AQI
6th September 2025
43AQI
7th September 2025
50AQI
8th September 2025
51AQI
9th September 2025
55AQI
10th September 2025
60AQI
11th September 2025
52AQI
12th September 2025
59AQI
13th September 2025
61AQI
14th September 2025
60AQI
15th September 2025
59AQI
16th September 2025
57AQI
17th September 2025
59AQI
18th September 2025
57AQI
19th September 2025
54AQI
20th September 2025
37AQI
21st September 2025
30AQI
22nd September 2025
31AQI
23rd September 2025
27AQI
24th September 2025
25AQI
25th September 2025
35AQI
26th September 2025
48AQI
27th September 2025
51AQI
28th September 2025
46AQI
29th September 2025
43AQI
30th September 2025
51AQI
1st October 2025
72AQI
2nd October 2025
74AQI
3rd October 2025
68AQI
4th October 2025
65AQI
5th October 2025
56AQI
6th October 2025
56AQI
7th October 2025
62AQI
8th October 2025
60AQI
9th October 2025
60AQI
10th October 2025
61AQI
11th October 2025
65AQI
12th October 2025
68AQI
13th October 2025
14th October 2025
15th October 2025
16th October 2025
17th October 2025
18th October 2025
19th October 2025
20th October 2025
21st October 2025
22nd October 2025
23rd October 2025
24th October 2025
25th October 2025
26th October 2025
27th October 2025
28th October 2025
29th October 2025
30th October 2025
31st October 2025
1st November 2025
2nd November 2025
3rd November 2025
4th November 2025
5th November 2025
6th November 2025
7th November 2025
8th November 2025
9th November 2025
10th November 2025
11th November 2025
12th November 2025
13th November 2025
14th November 2025
15th November 2025
16th November 2025
17th November 2025
18th November 2025
19th November 2025
20th November 2025
21st November 2025
22nd November 2025
23rd November 2025
24th November 2025
25th November 2025
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025

51AQI

49AQI

47AQI

50AQI

52AQI

49AQI

48AQI

64AQI

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202550AQI

3
2
14
16
19
12
14
16
13
18
17
14
13
17
12
93
107

Highest AQI recorded in

October

64AQI

Lowest AQI recorded in

May

47AQI

Most & Least Polluted Years Over the Last 1 Years

Most Polluted Year Recorded
2025(Avg.)
50AQI
Least Polluted Year Recorded
2025(Avg.)
50AQI

Houston's annual 2025 AQI (50) shows an average percentage change of NaN% (improved AQI) compared to previous years: .