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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Chattanooga, Tennessee, 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

Chattanooga, Tennessee, United States

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
2nd Aug 2024
70AQI
Lowest AQI recorded on
12th Aug 2025
20AQI

Same Day Analysis (17th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 55 of Moderate air quality on the same day.

Day & Night AQI Trend: 16th Aug - 17th Aug 2026

Chattanooga, Tennessee, United States

AQI
Day
Night
.

6 AM16th Aug 2026

8 PM

5 AM17th Aug 2026

Day time
Avg. Highest Time
1PM16th Aug

82AQI

Avg. Lowest Time
8PM16th Aug

60AQI

Night time
Avg. Highest Time
6AM16th Aug

68AQI

Avg. Lowest Time
5AM17th Aug

56AQI

In the last 24 hours,

Chattanooga's AQI reached its highest point of 82 at 1 PM during the Day, while the lowest point, 56, was recorded at 5 AM during the Night between 16th Aug and 17th Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Chattanooga, Tennessee, United States

JulAug
19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th
Day
Night
19th Jul 2026516 AMAQI
19th Jul 2026427 AMAQI
19th Jul 2026468 AMAQI
19th Jul 2026439 AMAQI
19th Jul 20264310 AMAQI
19th Jul 20264311 AMAQI
19th Jul 20264712 PMAQI
19th Jul 2026471 PMAQI
19th Jul 2026502 PMAQI
19th Jul 2026473 PMAQI
19th Jul 2026484 PMAQI
19th Jul 2026505 PMAQI
19th Jul 2026436 PMAQI
19th Jul 2026337 PMAQI
19th Jul 2026438 PMAQI
19th Jul 2026419 PMAQI
19th Jul 20263010 PMAQI
19th Jul 20263111 PMAQI
20th Jul 20262712 AMAQI
20th Jul 2026431 AMAQI
20th Jul 2026522 AMAQI
20th Jul 2026293 AMAQI
20th Jul 2026344 AMAQI
20th Jul 2026375 AMAQI

28°C24/35°C

20th Jul 2026396 AMAQI
20th Jul 2026307 AMAQI
20th Jul 2026268 AMAQI
20th Jul 2026369 AMAQI
20th Jul 20263010 AMAQI
20th Jul 20264411 AMAQI
20th Jul 20265512 PMAQI
20th Jul 2026641 PMAQI
20th Jul 2026522 PMAQI
20th Jul 2026483 PMAQI
20th Jul 2026454 PMAQI
20th Jul 2026475 PMAQI
20th Jul 2026516 PMAQI
20th Jul 2026527 PMAQI
20th Jul 2026528 PMAQI
20th Jul 2026519 PMAQI
20th Jul 20265010 PMAQI
21st Jul 20265012 AMAQI
21st Jul 2026501 AMAQI
21st Jul 2026512 AMAQI
21st Jul 2026513 AMAQI
21st Jul 2026514 AMAQI
21st Jul 2026515 AMAQI

28°C22/35°C

21st Jul 2026526 AMAQI
21st Jul 2026507 AMAQI
21st Jul 2026508 AMAQI
21st Jul 2026509 AMAQI
21st Jul 20265010 AMAQI
21st Jul 20264911 AMAQI
21st Jul 20264212 PMAQI
21st Jul 2026471 PMAQI
21st Jul 2026362 PMAQI
21st Jul 2026343 PMAQI
21st Jul 2026314 PMAQI
21st Jul 2026275 PMAQI
21st Jul 2026276 PMAQI
21st Jul 2026337 PMAQI
21st Jul 2026368 PMAQI
21st Jul 2026379 PMAQI
21st Jul 20263810 PMAQI
21st Jul 20263011 PMAQI
22nd Jul 20262312 AMAQI
22nd Jul 2026271 AMAQI
22nd Jul 2026232 AMAQI
22nd Jul 2026243 AMAQI
22nd Jul 2026304 AMAQI
22nd Jul 2026345 AMAQI

29°C23/37°C

22nd Jul 2026246 AMAQI
22nd Jul 2026297 AMAQI
22nd Jul 2026418 AMAQI
22nd Jul 2026269 AMAQI
22nd Jul 20264310 AMAQI
22nd Jul 20264211 AMAQI
22nd Jul 20264512 PMAQI
22nd Jul 2026441 PMAQI
22nd Jul 2026422 PMAQI
22nd Jul 2026463 PMAQI
22nd Jul 2026414 PMAQI
22nd Jul 2026435 PMAQI
22nd Jul 2026476 PMAQI
22nd Jul 2026447 PMAQI
22nd Jul 2026438 PMAQI
22nd Jul 2026439 PMAQI
22nd Jul 20264610 PMAQI
22nd Jul 20264811 PMAQI
23rd Jul 20264812 AMAQI
23rd Jul 2026471 AMAQI
23rd Jul 2026482 AMAQI
23rd Jul 2026333 AMAQI
23rd Jul 2026254 AMAQI
23rd Jul 2026305 AMAQI

29°C24/35°C

23rd Jul 2026386 AMAQI
23rd Jul 2026407 AMAQI
23rd Jul 2026428 AMAQI
23rd Jul 2026429 AMAQI
23rd Jul 20263510 AMAQI
23rd Jul 20264511 AMAQI
23rd Jul 20264812 PMAQI
23rd Jul 2026541 PMAQI
23rd Jul 2026482 PMAQI
23rd Jul 2026503 PMAQI
23rd Jul 2026474 PMAQI
23rd Jul 2026465 PMAQI
23rd Jul 2026426 PMAQI
23rd Jul 2026427 PMAQI
23rd Jul 2026428 PMAQI
23rd Jul 2026419 PMAQI
23rd Jul 20264010 PMAQI
23rd Jul 20263411 PMAQI
24th Jul 20264612 AMAQI
24th Jul 2026461 AMAQI
24th Jul 2026502 AMAQI
24th Jul 2026263 AMAQI
24th Jul 2026444 AMAQI
24th Jul 2026465 AMAQI

26°C23/30°C

24th Jul 2026386 AMAQI
24th Jul 2026327 AMAQI
24th Jul 2026408 AMAQI
24th Jul 2026429 AMAQI
24th Jul 20264810 AMAQI
24th Jul 20265611 AMAQI
24th Jul 20264212 PMAQI
24th Jul 2026421 PMAQI
24th Jul 2026452 PMAQI
24th Jul 2026543 PMAQI
24th Jul 2026404 PMAQI
24th Jul 2026395 PMAQI
24th Jul 2026426 PMAQI
24th Jul 2026417 PMAQI
24th Jul 2026438 PMAQI
24th Jul 2026459 PMAQI
24th Jul 20264410 PMAQI
24th Jul 20264411 PMAQI
25th Jul 20264512 AMAQI
25th Jul 2026431 AMAQI
25th Jul 2026442 AMAQI
25th Jul 2026463 AMAQI
25th Jul 2026464 AMAQI
25th Jul 2026465 AMAQI

27°C22/34°C

25th Jul 2026476 AMAQI
25th Jul 2026467 AMAQI
25th Jul 2026478 AMAQI
25th Jul 2026469 AMAQI
25th Jul 20264510 AMAQI
25th Jul 20264611 AMAQI
25th Jul 20264712 PMAQI
25th Jul 2026441 PMAQI
25th Jul 2026432 PMAQI
25th Jul 2026403 PMAQI
25th Jul 2026434 PMAQI
25th Jul 2026365 PMAQI
25th Jul 2026386 PMAQI
25th Jul 2026247 PMAQI
25th Jul 2026348 PMAQI
25th Jul 2026389 PMAQI
25th Jul 20265010 PMAQI
25th Jul 20264111 PMAQI
26th Jul 20264612 AMAQI
26th Jul 2026461 AMAQI
26th Jul 2026432 AMAQI
26th Jul 2026253 AMAQI
26th Jul 2026344 AMAQI
26th Jul 2026395 AMAQI

26°C22/32°C

26th Jul 2026406 AMAQI
26th Jul 2026407 AMAQI
26th Jul 2026358 AMAQI
26th Jul 2026429 AMAQI
26th Jul 20264210 AMAQI
26th Jul 20264111 AMAQI
26th Jul 20264212 PMAQI
26th Jul 2026421 PMAQI
26th Jul 2026452 PMAQI
26th Jul 2026493 PMAQI
26th Jul 2026504 PMAQI
26th Jul 2026545 PMAQI
26th Jul 2026556 PMAQI
26th Jul 2026557 PMAQI
26th Jul 2026588 PMAQI
26th Jul 2026569 PMAQI
26th Jul 20265810 PMAQI
26th Jul 20265811 PMAQI
27th Jul 20265712 AMAQI
27th Jul 2026581 AMAQI
27th Jul 2026582 AMAQI
27th Jul 2026643 AMAQI
27th Jul 2026644 AMAQI
27th Jul 2026605 AMAQI

29°C24/37°C

27th Jul 2026586 AMAQI
27th Jul 2026517 AMAQI
27th Jul 2026458 AMAQI
27th Jul 2026509 AMAQI
27th Jul 20264810 AMAQI
27th Jul 20265011 AMAQI
27th Jul 20265012 PMAQI
27th Jul 2026381 PMAQI
27th Jul 2026322 PMAQI
27th Jul 2026423 PMAQI
27th Jul 2026404 PMAQI
27th Jul 2026315 PMAQI
27th Jul 2026266 PMAQI
27th Jul 2026327 PMAQI
27th Jul 2026348 PMAQI
27th Jul 2026349 PMAQI
27th Jul 20264910 PMAQI
27th Jul 20263811 PMAQI
28th Jul 20263312 AMAQI
28th Jul 2026351 AMAQI
28th Jul 2026342 AMAQI
28th Jul 2026413 AMAQI
28th Jul 2026334 AMAQI
28th Jul 2026405 AMAQI

30°C24/38°C

28th Jul 2026436 AMAQI
28th Jul 2026437 AMAQI
28th Jul 2026428 AMAQI
28th Jul 2026449 AMAQI
28th Jul 20264510 AMAQI
28th Jul 20264611 AMAQI
28th Jul 20265012 PMAQI
28th Jul 2026541 PMAQI
28th Jul 2026582 PMAQI
28th Jul 2026583 PMAQI
28th Jul 2026624 PMAQI
28th Jul 2026605 PMAQI
28th Jul 2026586 PMAQI
28th Jul 2026577 PMAQI
28th Jul 2026588 PMAQI
28th Jul 2026579 PMAQI
28th Jul 20265610 PMAQI
28th Jul 20265411 PMAQI
29th Jul 20265612 AMAQI
29th Jul 2026541 AMAQI
29th Jul 2026542 AMAQI
29th Jul 2026553 AMAQI
29th Jul 2026534 AMAQI
29th Jul 2026545 AMAQI

31°C24/39°C

29th Jul 2026556 AMAQI
29th Jul 2026557 AMAQI
29th Jul 2026568 AMAQI
29th Jul 2026579 AMAQI
29th Jul 20265610 AMAQI
29th Jul 20265611 AMAQI
29th Jul 20265512 PMAQI
29th Jul 2026571 PMAQI
29th Jul 2026562 PMAQI
29th Jul 2026573 PMAQI
29th Jul 2026584 PMAQI
29th Jul 2026625 PMAQI
29th Jul 2026666 PMAQI
29th Jul 2026707 PMAQI
29th Jul 2026708 PMAQI
29th Jul 2026779 PMAQI
29th Jul 20268210 PMAQI
29th Jul 20267411 PMAQI
30th Jul 20268012 AMAQI
30th Jul 2026741 AMAQI
30th Jul 2026732 AMAQI
30th Jul 2026723 AMAQI
30th Jul 2026724 AMAQI
30th Jul 2026635 AMAQI

29°C24/36°C

30th Jul 2026646 AMAQI
30th Jul 2026587 AMAQI
30th Jul 2026548 AMAQI
30th Jul 2026539 AMAQI
30th Jul 20265310 AMAQI
30th Jul 20264811 AMAQI
30th Jul 20264412 PMAQI
30th Jul 2026421 PMAQI
30th Jul 2026522 PMAQI
30th Jul 2026523 PMAQI
30th Jul 2026524 PMAQI
30th Jul 2026555 PMAQI
30th Jul 2026526 PMAQI
30th Jul 2026547 PMAQI
30th Jul 2026568 PMAQI
30th Jul 2026529 PMAQI
30th Jul 20265010 PMAQI
30th Jul 20264111 PMAQI
31st Jul 20264012 AMAQI
31st Jul 2026421 AMAQI
31st Jul 2026462 AMAQI
31st Jul 2026303 AMAQI
31st Jul 2026434 AMAQI
31st Jul 2026445 AMAQI

26°C19/34°C

31st Jul 2026346 AMAQI
31st Jul 2026367 AMAQI
31st Jul 2026658 AMAQI
31st Jul 2026569 AMAQI
31st Jul 20265410 AMAQI
31st Jul 20265311 AMAQI
31st Jul 20264112 PMAQI
31st Jul 2026461 PMAQI
31st Jul 2026472 PMAQI
31st Jul 2026483 PMAQI
31st Jul 2026484 PMAQI
31st Jul 2026455 PMAQI
31st Jul 2026476 PMAQI
31st Jul 2026427 PMAQI
31st Jul 2026418 PMAQI
31st Jul 2026419 PMAQI
31st Jul 20264210 PMAQI
31st Jul 20264411 PMAQI
1st Aug 20264212 AMAQI
1st Aug 2026431 AMAQI
1st Aug 2026422 AMAQI
1st Aug 2026453 AMAQI
1st Aug 2026444 AMAQI
1st Aug 2026455 AMAQI

27°C18/37°C

1st Aug 2026466 AMAQI
1st Aug 2026477 AMAQI
1st Aug 2026478 AMAQI
1st Aug 2026519 AMAQI
1st Aug 20265410 AMAQI
1st Aug 20266011 AMAQI
1st Aug 20266112 PMAQI
1st Aug 2026611 PMAQI
1st Aug 2026612 PMAQI
1st Aug 2026583 PMAQI
1st Aug 2026564 PMAQI
1st Aug 2026535 PMAQI
1st Aug 2026546 PMAQI
1st Aug 2026527 PMAQI
1st Aug 2026528 PMAQI
1st Aug 2026459 PMAQI
1st Aug 20265310 PMAQI
1st Aug 20264611 PMAQI
2nd Aug 20264212 AMAQI
2nd Aug 2026481 AMAQI
2nd Aug 2026262 AMAQI
2nd Aug 2026303 AMAQI
2nd Aug 2026374 AMAQI
2nd Aug 2026315 AMAQI

26°C22/33°C

2nd Aug 2026316 AMAQI
2nd Aug 2026357 AMAQI
2nd Aug 2026348 AMAQI
2nd Aug 2026239 AMAQI
2nd Aug 20263910 AMAQI
2nd Aug 20263811 AMAQI
2nd Aug 20264612 PMAQI
2nd Aug 2026381 PMAQI
2nd Aug 2026462 PMAQI
2nd Aug 2026463 PMAQI
2nd Aug 2026344 PMAQI
2nd Aug 2026425 PMAQI
2nd Aug 2026376 PMAQI
2nd Aug 2026327 PMAQI
2nd Aug 2026428 PMAQI
2nd Aug 2026459 PMAQI
2nd Aug 20264710 PMAQI
2nd Aug 20262911 PMAQI
3rd Aug 20262212 AMAQI
3rd Aug 2026241 AMAQI
3rd Aug 2026402 AMAQI
3rd Aug 2026383 AMAQI
3rd Aug 2026364 AMAQI
3rd Aug 2026375 AMAQI

25°C22/29°C

3rd Aug 2026406 AMAQI
3rd Aug 2026597 AMAQI
3rd Aug 2026468 AMAQI
3rd Aug 2026419 AMAQI
3rd Aug 20266010 AMAQI
3rd Aug 20265811 AMAQI
3rd Aug 20265012 PMAQI
3rd Aug 2026471 PMAQI
3rd Aug 2026362 PMAQI
3rd Aug 2026363 PMAQI
3rd Aug 2026384 PMAQI
3rd Aug 2026275 PMAQI
3rd Aug 2026446 PMAQI
3rd Aug 2026657 PMAQI
3rd Aug 2026548 PMAQI
3rd Aug 2026319 PMAQI
3rd Aug 20264210 PMAQI
3rd Aug 20263611 PMAQI
4th Aug 20263412 AMAQI
4th Aug 2026301 AMAQI
4th Aug 2026322 AMAQI
4th Aug 2026373 AMAQI
4th Aug 2026424 AMAQI
4th Aug 2026525 AMAQI

25°C21/29°C

4th Aug 2026256 AMAQI
4th Aug 2026407 AMAQI
4th Aug 2026418 AMAQI
4th Aug 2026289 AMAQI
4th Aug 20263610 AMAQI
4th Aug 20263611 AMAQI
4th Aug 20264812 PMAQI
4th Aug 2026481 PMAQI
4th Aug 2026422 PMAQI
4th Aug 2026313 PMAQI
4th Aug 2026364 PMAQI
4th Aug 2026445 PMAQI
4th Aug 2026216 PMAQI
4th Aug 2026267 PMAQI
4th Aug 2026568 PMAQI
4th Aug 2026309 PMAQI
4th Aug 20264310 PMAQI
4th Aug 20265111 PMAQI
5th Aug 20263012 AMAQI
5th Aug 2026381 AMAQI
5th Aug 2026362 AMAQI
5th Aug 2026293 AMAQI
5th Aug 2026244 AMAQI
5th Aug 2026345 AMAQI

26°C21/33°C

5th Aug 2026406 AMAQI
5th Aug 2026407 AMAQI
5th Aug 2026358 AMAQI
5th Aug 2026309 AMAQI
5th Aug 20263710 AMAQI
5th Aug 20263411 AMAQI
5th Aug 20263312 PMAQI
5th Aug 2026341 PMAQI
5th Aug 2026302 PMAQI
5th Aug 2026373 PMAQI
5th Aug 2026314 PMAQI
5th Aug 2026325 PMAQI
5th Aug 2026266 PMAQI
5th Aug 2026277 PMAQI
5th Aug 2026288 PMAQI
5th Aug 2026369 PMAQI
5th Aug 20262810 PMAQI
5th Aug 20263911 PMAQI
6th Aug 20264812 AMAQI
6th Aug 2026411 AMAQI
6th Aug 2026332 AMAQI
6th Aug 2026453 AMAQI
6th Aug 2026394 AMAQI
6th Aug 2026415 AMAQI

26°C21/36°C

6th Aug 2026296 AMAQI
6th Aug 2026387 AMAQI
6th Aug 2026528 AMAQI
6th Aug 2026279 AMAQI
6th Aug 20264210 AMAQI
6th Aug 20262511 AMAQI
6th Aug 20263712 PMAQI
6th Aug 2026401 PMAQI
6th Aug 2026402 PMAQI
6th Aug 2026403 PMAQI
6th Aug 2026444 PMAQI
6th Aug 2026415 PMAQI
6th Aug 2026396 PMAQI
6th Aug 2026447 PMAQI
6th Aug 2026448 PMAQI
6th Aug 2026429 PMAQI
6th Aug 20265010 PMAQI
6th Aug 20264511 PMAQI
7th Aug 20263312 AMAQI
7th Aug 2026381 AMAQI
7th Aug 2026382 AMAQI
7th Aug 2026323 AMAQI
7th Aug 2026374 AMAQI
7th Aug 2026385 AMAQI

26°C22/32°C

7th Aug 2026796 AMAQI
7th Aug 2026627 AMAQI
7th Aug 2026538 AMAQI
7th Aug 2026399 AMAQI
7th Aug 20264010 AMAQI
7th Aug 20263911 AMAQI
7th Aug 20264512 PMAQI
7th Aug 2026451 PMAQI
7th Aug 2026492 PMAQI
7th Aug 2026503 PMAQI
7th Aug 2026514 PMAQI
7th Aug 2026525 PMAQI
7th Aug 2026526 PMAQI
7th Aug 2026337 PMAQI
7th Aug 2026348 PMAQI
7th Aug 2026449 PMAQI
7th Aug 20263010 PMAQI
7th Aug 20262811 PMAQI
8th Aug 20264212 AMAQI
8th Aug 2026341 AMAQI
8th Aug 2026462 AMAQI
8th Aug 2026293 AMAQI
8th Aug 2026344 AMAQI
8th Aug 2026335 AMAQI

25°C21/34°C

8th Aug 2026256 AMAQI
8th Aug 2026297 AMAQI
8th Aug 2026258 AMAQI
8th Aug 2026269 AMAQI
8th Aug 20262910 AMAQI
8th Aug 20262811 AMAQI
8th Aug 20265712 PMAQI
8th Aug 2026291 PMAQI
8th Aug 2026662 PMAQI
8th Aug 2026333 PMAQI
8th Aug 2026424 PMAQI
8th Aug 2026425 PMAQI
8th Aug 2026406 PMAQI
8th Aug 2026327 PMAQI
8th Aug 2026298 PMAQI
8th Aug 2026419 PMAQI
8th Aug 20263810 PMAQI
8th Aug 20262911 PMAQI
9th Aug 20263012 AMAQI
9th Aug 2026261 AMAQI
9th Aug 2026232 AMAQI
9th Aug 2026393 AMAQI
9th Aug 2026414 AMAQI
9th Aug 2026395 AMAQI

26°C19/33°C

9th Aug 2026426 AMAQI
9th Aug 2026427 AMAQI
9th Aug 2026338 AMAQI
9th Aug 2026339 AMAQI
9th Aug 20263810 AMAQI
9th Aug 20264111 AMAQI
9th Aug 20264012 PMAQI
9th Aug 2026421 PMAQI
9th Aug 2026462 PMAQI
9th Aug 2026453 PMAQI
9th Aug 2026444 PMAQI
9th Aug 2026395 PMAQI
9th Aug 2026466 PMAQI
9th Aug 2026277 PMAQI
9th Aug 2026338 PMAQI
9th Aug 2026369 PMAQI
9th Aug 20264610 PMAQI
9th Aug 20263411 PMAQI
10th Aug 20263312 AMAQI
10th Aug 2026341 AMAQI
10th Aug 2026322 AMAQI
10th Aug 2026423 AMAQI
10th Aug 2026384 AMAQI
10th Aug 2026465 AMAQI

28°C21/36°C

10th Aug 2026366 AMAQI
10th Aug 2026607 AMAQI
10th Aug 2026348 AMAQI
10th Aug 2026469 AMAQI
10th Aug 20264410 AMAQI
10th Aug 20263311 AMAQI
10th Aug 20264012 PMAQI
10th Aug 2026511 PMAQI
10th Aug 2026472 PMAQI
10th Aug 2026473 PMAQI
10th Aug 2026394 PMAQI
10th Aug 2026405 PMAQI
10th Aug 2026256 PMAQI
10th Aug 2026437 PMAQI
10th Aug 2026318 PMAQI
10th Aug 2026399 PMAQI
10th Aug 20264110 PMAQI
10th Aug 20264111 PMAQI
11th Aug 20263312 AMAQI
11th Aug 2026401 AMAQI
11th Aug 2026472 AMAQI
11th Aug 2026483 AMAQI
11th Aug 2026504 AMAQI
11th Aug 2026495 AMAQI

30°C22/38°C

11th Aug 2026516 AMAQI
11th Aug 2026487 AMAQI
11th Aug 2026458 AMAQI
11th Aug 2026459 AMAQI
11th Aug 20265010 AMAQI
11th Aug 20264811 AMAQI
11th Aug 20265112 PMAQI
11th Aug 2026521 PMAQI
11th Aug 2026522 PMAQI
11th Aug 2026523 PMAQI
11th Aug 2026504 PMAQI
11th Aug 2026495 PMAQI
11th Aug 2026496 PMAQI
11th Aug 2026557 PMAQI
11th Aug 2026468 PMAQI
11th Aug 2026479 PMAQI
11th Aug 20264610 PMAQI
11th Aug 20262411 PMAQI
12th Aug 20263212 AMAQI
12th Aug 2026251 AMAQI
12th Aug 2026382 AMAQI
12th Aug 2026253 AMAQI
12th Aug 2026394 AMAQI
12th Aug 2026315 AMAQI

30°C23/38°C

12th Aug 2026286 AMAQI
12th Aug 2026487 AMAQI
12th Aug 2026328 AMAQI
12th Aug 2026459 AMAQI
12th Aug 20263810 AMAQI
12th Aug 20262511 AMAQI
12th Aug 20262612 PMAQI
12th Aug 2026521 PMAQI
12th Aug 2026622 PMAQI
12th Aug 2026573 PMAQI
12th Aug 2026294 PMAQI
12th Aug 2026395 PMAQI
12th Aug 2026226 PMAQI
12th Aug 2026297 PMAQI
12th Aug 2026238 PMAQI
12th Aug 2026339 PMAQI
12th Aug 20263310 PMAQI
12th Aug 20263811 PMAQI
13th Aug 20263512 AMAQI
13th Aug 2026341 AMAQI
13th Aug 2026272 AMAQI
13th Aug 2026273 AMAQI
13th Aug 2026444 AMAQI
13th Aug 2026425 AMAQI

28°C21/37°C

13th Aug 2026446 AMAQI
13th Aug 2026407 AMAQI
13th Aug 2026398 AMAQI
13th Aug 2026429 AMAQI
13th Aug 20264110 AMAQI
13th Aug 20264211 AMAQI
13th Aug 20264812 PMAQI
13th Aug 2026481 PMAQI
13th Aug 2026522 PMAQI
13th Aug 2026503 PMAQI
13th Aug 2026474 PMAQI
13th Aug 2026445 PMAQI
13th Aug 2026426 PMAQI
13th Aug 2026447 PMAQI
13th Aug 2026428 PMAQI
13th Aug 2026489 PMAQI
13th Aug 20264010 PMAQI
13th Aug 20264111 PMAQI
14th Aug 20264212 AMAQI
14th Aug 2026421 AMAQI
14th Aug 2026462 AMAQI
14th Aug 2026433 AMAQI
14th Aug 2026484 AMAQI
14th Aug 2026485 AMAQI

30°C24/38°C

14th Aug 2026456 AMAQI
14th Aug 2026467 AMAQI
14th Aug 2026468 AMAQI
14th Aug 2026429 AMAQI
14th Aug 20264510 AMAQI
14th Aug 20264611 AMAQI
14th Aug 20264812 PMAQI
14th Aug 2026501 PMAQI
14th Aug 2026502 PMAQI
14th Aug 2026433 PMAQI
14th Aug 2026524 PMAQI
14th Aug 2026375 PMAQI
14th Aug 2026276 PMAQI
14th Aug 2026297 PMAQI
14th Aug 2026278 PMAQI
14th Aug 2026369 PMAQI
14th Aug 20263010 PMAQI
14th Aug 20264511 PMAQI
15th Aug 20264212 AMAQI
15th Aug 2026491 AMAQI
15th Aug 2026412 AMAQI
15th Aug 2026463 AMAQI
15th Aug 2026524 AMAQI
15th Aug 2026445 AMAQI

31°C25/37°C

15th Aug 2026426 AMAQI
15th Aug 2026407 AMAQI
15th Aug 2026418 AMAQI
15th Aug 2026429 AMAQI
15th Aug 20264310 AMAQI
15th Aug 20264811 AMAQI
15th Aug 20264812 PMAQI
15th Aug 2026511 PMAQI
15th Aug 2026542 PMAQI
15th Aug 2026543 PMAQI
15th Aug 2026564 PMAQI
15th Aug 2026555 PMAQI
15th Aug 2026566 PMAQI
15th Aug 2026577 PMAQI
15th Aug 2026598 PMAQI
15th Aug 2026619 PMAQI
15th Aug 20266010 PMAQI
15th Aug 20266311 PMAQI
16th Aug 20266112 AMAQI
16th Aug 2026621 AMAQI
16th Aug 2026642 AMAQI
16th Aug 2026663 AMAQI
16th Aug 2026674 AMAQI
16th Aug 2026705 AMAQI

29°C24/36°C

16th Aug 2026686 AMAQI
16th Aug 2026727 AMAQI
16th Aug 2026748 AMAQI
16th Aug 2026729 AMAQI
16th Aug 20267510 AMAQI
16th Aug 20267411 AMAQI
16th Aug 20267812 PMAQI
16th Aug 2026821 PMAQI
16th Aug 2026762 PMAQI
16th Aug 2026783 PMAQI
16th Aug 2026754 PMAQI
16th Aug 2026695 PMAQI
16th Aug 2026686 PMAQI
16th Aug 2026647 PMAQI
16th Aug 2026608 PMAQI
16th Aug 2026589 PMAQI
16th Aug 20266110 PMAQI
16th Aug 20265811 PMAQI
17th Aug 20265912 AMAQI
17th Aug 2026581 AMAQI
17th Aug 2026592 AMAQI
17th Aug 2026583 AMAQI
17th Aug 2026574 AMAQI
17th Aug 2026565 AMAQI

29°C22/38°C

17th Aug 2026586 AMAQI
6 AM
17th Aug 2026577 AMAQI
17th Aug 2026578 AMAQI
17th Aug 2026579 AMAQI
17th Aug 20265710 AMAQI
17th Aug 20265811 AMAQI
17th Aug 20265812 PMAQI
17th Aug 2026561 PMAQI
1 PM
17th Aug 2026562 PMAQI
17th Aug 2026583 PMAQI
17th Aug 2026574 PMAQI
17th Aug 2026585 PMAQI
17th Aug 2026586 PMAQI
17th Aug 2026597 PMAQI
17th Aug 2026478 PMAQI
8 PM
17th Aug 2026469 PMAQI
17th Aug 20263410 PMAQI
17th Aug 20264011 PMAQI
1 AM
5 AM

30°C24/39°C

Day time
Avg. Highest Time
12 PM - 3 PM

48AQI

4 hours / Day
120 hours / Month
Avg. Lowest Time
6 AM - 9 AM

44AQI

4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 PM to 3 PM (Avg. 48), while the lowest AQI was between 6 AM to 9 AM (Avg. 44).
Night time
Avg. Highest Time
4 AM - 10 PM

44AQI

4 hours / Day
120 hours / Month
Avg. Lowest Time
3 AM

41AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 AM to 10 PM (Avg. 44), while the lowest AQI was between 3 AM to 3 AM (Avg. 41).

2026 Days Vs Air Quality

Chattanooga, Tennessee, United States

2026

94%

212

6%

14

Total number of days with different AQI categories in last 229 days in 2026 (136 days remaining)

Good
212 Days
Moderate
14 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 94%

Health Risk Level:

Very Low

In 2026, 94% of 229 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.

Annual Air Quality Insights

Chattanooga, Tennessee, United States

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
42AQI (US)
2nd January 2026
45AQI (US)
3rd January 2026
48AQI (US)
4th January 2026
40AQI (US)
5th January 2026
33AQI (US)
6th January 2026
27AQI (US)
7th January 2026
39AQI (US)
8th January 2026
46AQI (US)
9th January 2026
39AQI (US)
10th January 2026
18AQI (US)
11th January 2026
17AQI (US)
12th January 2026
20AQI (US)
13th January 2026
26AQI (US)
14th January 2026
22AQI (US)
15th January 2026
18AQI (US)
16th January 2026
22AQI (US)
17th January 2026
23AQI (US)
18th January 2026
14AQI (US)
19th January 2026
19AQI (US)
20th January 2026
22AQI (US)
21st January 2026
40AQI (US)
22nd January 2026
56AQI (US)
23rd January 2026
52AQI (US)
24th January 2026
42AQI (US)
25th January 2026
50AQI (US)
26th January 2026
43AQI (US)
27th January 2026
30AQI (US)
28th January 2026
34AQI (US)
29th January 2026
43AQI (US)
30th January 2026
59AQI (US)
31st January 2026
34AQI (US)
1st February 2026
52AQI (US)
2nd February 2026
46AQI (US)
3rd February 2026
43AQI (US)
4th February 2026
41AQI (US)
5th February 2026
43AQI (US)
6th February 2026
35AQI (US)
7th February 2026
32AQI (US)
8th February 2026
37AQI (US)
9th February 2026
44AQI (US)
10th February 2026
44AQI (US)
11th February 2026
39AQI (US)
12th February 2026
34AQI (US)
13th February 2026
38AQI (US)
14th February 2026
39AQI (US)
15th February 2026
38AQI (US)
16th February 2026
38AQI (US)
17th February 2026
31AQI (US)
18th February 2026
36AQI (US)
19th February 2026
32AQI (US)
20th February 2026
29AQI (US)
21st February 2026
40AQI (US)
22nd February 2026
42AQI (US)
23rd February 2026
36AQI (US)
24th February 2026
30AQI (US)
25th February 2026
44AQI (US)
26th February 2026
34AQI (US)
27th February 2026
27AQI (US)
28th February 2026
28AQI (US)
1st March 2026
40AQI (US)
2nd March 2026
52AQI (US)
3rd March 2026
30AQI (US)
4th March 2026
37AQI (US)
5th March 2026
49AQI (US)
6th March 2026
38AQI (US)
7th March 2026
28AQI (US)
8th March 2026
38AQI (US)
9th March 2026
31AQI (US)
10th March 2026
30AQI (US)
11th March 2026
34AQI (US)
12th March 2026
38AQI (US)
13th March 2026
36AQI (US)
14th March 2026
26AQI (US)
15th March 2026
23AQI (US)
16th March 2026
33AQI (US)
17th March 2026
34AQI (US)
18th March 2026
22AQI (US)
19th March 2026
36AQI (US)
20th March 2026
46AQI (US)
21st March 2026
36AQI (US)
22nd March 2026
32AQI (US)
23rd March 2026
34AQI (US)
24th March 2026
25AQI (US)
25th March 2026
34AQI (US)
26th March 2026
58AQI (US)
27th March 2026
27AQI (US)
28th March 2026
19AQI (US)
29th March 2026
19AQI (US)
30th March 2026
28AQI (US)
31st March 2026
28AQI (US)
1st April 2026
23AQI (US)
2nd April 2026
22AQI (US)
3rd April 2026
31AQI (US)
4th April 2026
29AQI (US)
5th April 2026
30AQI (US)
6th April 2026
30AQI (US)
7th April 2026
24AQI (US)
8th April 2026
34AQI (US)
9th April 2026
21AQI (US)
10th April 2026
30AQI (US)
11th April 2026
30AQI (US)
12th April 2026
29AQI (US)
13th April 2026
38AQI (US)
14th April 2026
34AQI (US)
15th April 2026
34AQI (US)
16th April 2026
24AQI (US)
17th April 2026
18th April 2026
23AQI (US)
19th April 2026
32AQI (US)
20th April 2026
17AQI (US)
21st April 2026
18AQI (US)
22nd April 2026
23rd April 2026
26AQI (US)
24th April 2026
36AQI (US)
25th April 2026
18AQI (US)
26th April 2026
26AQI (US)
27th April 2026
18AQI (US)
28th April 2026
24AQI (US)
29th April 2026
23AQI (US)
30th April 2026
17AQI (US)
1st May 2026
22AQI (US)
2nd May 2026
19AQI (US)
3rd May 2026
20AQI (US)
4th May 2026
34AQI (US)
5th May 2026
40AQI (US)
6th May 2026
26AQI (US)
7th May 2026
26AQI (US)
8th May 2026
26AQI (US)
9th May 2026
10th May 2026
24AQI (US)
11th May 2026
25AQI (US)
12th May 2026
35AQI (US)
13th May 2026
24AQI (US)
14th May 2026
29AQI (US)
15th May 2026
28AQI (US)
16th May 2026
44AQI (US)
17th May 2026
50AQI (US)
18th May 2026
54AQI (US)
19th May 2026
52AQI (US)
20th May 2026
48AQI (US)
21st May 2026
39AQI (US)
22nd May 2026
42AQI (US)
23rd May 2026
42AQI (US)
24th May 2026
44AQI (US)
25th May 2026
42AQI (US)
26th May 2026
28AQI (US)
27th May 2026
26AQI (US)
28th May 2026
28AQI (US)
29th May 2026
29AQI (US)
30th May 2026
28AQI (US)
31st May 2026
29AQI (US)
1st June 2026
32AQI (US)
2nd June 2026
28AQI (US)
3rd June 2026
26AQI (US)
4th June 2026
23AQI (US)
5th June 2026
27AQI (US)
6th June 2026
26AQI (US)
7th June 2026
34AQI (US)
8th June 2026
26AQI (US)
9th June 2026
28AQI (US)
10th June 2026
27AQI (US)
11th June 2026
28AQI (US)
12th June 2026
27AQI (US)
13th June 2026
26AQI (US)
14th June 2026
26AQI (US)
15th June 2026
26AQI (US)
16th June 2026
26AQI (US)
17th June 2026
27AQI (US)
18th June 2026
28AQI (US)
19th June 2026
24AQI (US)
20th June 2026
24AQI (US)
21st June 2026
29AQI (US)
22nd June 2026
24AQI (US)
23rd June 2026
22AQI (US)
24th June 2026
26AQI (US)
25th June 2026
24AQI (US)
26th June 2026
28AQI (US)
27th June 2026
30AQI (US)
28th June 2026
34AQI (US)
29th June 2026
24AQI (US)
30th June 2026
28AQI (US)
1st July 2026
28AQI (US)
2nd July 2026
32AQI (US)
3rd July 2026
33AQI (US)
4th July 2026
37AQI (US)
5th July 2026
44AQI (US)
6th July 2026
36AQI (US)
7th July 2026
34AQI (US)
8th July 2026
30AQI (US)
9th July 2026
36AQI (US)
10th July 2026
32AQI (US)
11th July 2026
32AQI (US)
12th July 2026
66AQI (US)
13th July 2026
22AQI (US)
14th July 2026
27AQI (US)
15th July 2026
30AQI (US)
16th July 2026
29AQI (US)
17th July 2026
38AQI (US)
18th July 2026
41AQI (US)
19th July 2026
45AQI (US)
20th July 2026
44AQI (US)
21st July 2026
42AQI (US)
22nd July 2026
38AQI (US)
23rd July 2026
42AQI (US)
24th July 2026
43AQI (US)
25th July 2026
43AQI (US)
26th July 2026
46AQI (US)
27th July 2026
46AQI (US)
28th July 2026
48AQI (US)
29th July 2026
60AQI (US)
30th July 2026
56AQI (US)
31st July 2026
45AQI (US)
1st August 2026
51AQI (US)
2nd August 2026
38AQI (US)
3rd August 2026
42AQI (US)
4th August 2026
38AQI (US)
5th August 2026
33AQI (US)
6th August 2026
40AQI (US)
7th August 2026
44AQI (US)
8th August 2026
36AQI (US)
9th August 2026
38AQI (US)
10th August 2026
40AQI (US)
11th August 2026
47AQI (US)
12th August 2026
36AQI (US)
13th August 2026
42AQI (US)
14th August 2026
42AQI (US)
15th August 2026
50AQI (US)
16th August 2026
69AQI (US)
17th August 2026
55AQI (US)
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
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

34AQI (US)

38AQI (US)

34AQI (US)

26AQI (US)

33AQI (US)

27AQI (US)

40AQI (US)

44AQI (US)

No. of days

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

202634AQI (US)

28
3
27
1
29
2
28
28
2
30
28
3
14
3
212
14

Highest AQI (US) recorded in

August

44AQI (US)

Lowest AQI (US) recorded in

April

26AQI (US)

202538AQI (US)

31
28
26
4
1
24
6
31
19
11
25
6
27
4
18
12
30
1
20
10
24
7
303
61
1

Highest AQI (US) recorded in

September

44AQI (US)

Lowest AQI (US) recorded in

May

31AQI (US)

202434AQI (US)

28
3
22
7
28
3
23
7
31
26
3
31
19
12
29
1
30
1
27
3
29
2
323
42

Highest AQI (US) recorded in

August

45AQI (US)

Lowest AQI (US) recorded in

January

28AQI (US)

202341AQI (US)

17
8
24
4
21
10
24
6
25
6
12
16
2
22
8
1
23
8
22
7
26
4
20
9
22
9
258
95
3

Highest AQI (US) recorded in

June

60AQI (US)

Lowest AQI (US) recorded in

October

34AQI (US)

202239AQI (US)

12
11
3
24
7
21
9
25
6
18
12
21
3
1
24
5
24
7
19
5
1
26
5
226
62
1

Highest AQI (US) recorded in

June

45AQI (US)

Lowest AQI (US) recorded in

August

30AQI (US)

202138AQI (US)

24
5
27
1
27
4
27
3
25
6
27
3
22
7
6
4
18
13
23
7
19
12
245
65

Highest AQI (US) recorded in

December

47AQI (US)

Lowest AQI (US) recorded in

February

28AQI (US)

202036AQI (US)

11
2
18
2
18
26
4
25
4
31
25
3
24
7
22
7
18
12
218
41

Highest AQI (US) recorded in

December

44AQI (US)

Lowest AQI (US) recorded in

March

29AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2023(Avg.)
41AQI (US)
Least Polluted Year Recorded
2024(Avg.)
34AQI (US)

Chattanooga's annual 2026 AQI (US) (34) shows an average percentage change of -9.4% (improved AQI (US)) compared to previous years: 2020 (36), 2021 (38), 2022 (39), 2023 (41), 2024 (34), 2025 (38).