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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Knoxville, 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+

September Air Quality Analysis

Knoxville, Tennessee, United States

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
19th Sep 2022
59AQI
Lowest AQI recorded on
26th Sep 2024
8AQI

Same Day Analysis (23rd September):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 42 of Good air quality, showing improvement over 2025 and 2024 on the same day.

Day & Night AQI Trend: 23rd Sep - 24th Sep 2026

Knoxville, Tennessee, United States

AQI
Day
Night
.

7 AM23rd Sep 2026

7 PM

6 AM24th Sep 2026

Day time
Avg. Highest Time
2PM23rd Sep

107AQI

Avg. Lowest Time
7PM23rd Sep

29AQI

Night time
Avg. Highest Time
10PM23rd Sep

74AQI

Avg. Lowest Time
6AM24th Sep

22AQI

In the last 24 hours,

Knoxville's AQI reached its highest point of 107 at 2 PM during the Day, while the lowest point, 22, was recorded at 6 AM during the Night between 23rd Sep and 24th Sep 2026.

Day & Night AQI Trend : Aug - Sep 2026

Knoxville, Tennessee, United States

AugSep
26th - 27th27th - 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
Day
Night
26th Aug 2026247 AMAQI
26th Aug 2026248 AMAQI
26th Aug 2026289 AMAQI
26th Aug 20264110 AMAQI
26th Aug 20263811 AMAQI
26th Aug 20263912 PMAQI
26th Aug 2026401 PMAQI
26th Aug 2026402 PMAQI
26th Aug 2026423 PMAQI
26th Aug 2026404 PMAQI
26th Aug 2026265 PMAQI
26th Aug 2026386 PMAQI
26th Aug 2026267 PMAQI
26th Aug 2026288 PMAQI
26th Aug 2026339 PMAQI
26th Aug 20263910 PMAQI
26th Aug 20263911 PMAQI
27th Aug 20264012 AMAQI
27th Aug 2026401 AMAQI
27th Aug 2026412 AMAQI
27th Aug 2026423 AMAQI
27th Aug 2026434 AMAQI
27th Aug 2026435 AMAQI
27th Aug 2026426 AMAQI

25°C17/34°C

27th Aug 2026447 AMAQI
27th Aug 2026478 AMAQI
27th Aug 2026449 AMAQI
27th Aug 20264610 AMAQI
27th Aug 20264811 AMAQI
27th Aug 20264712 PMAQI
27th Aug 2026461 PMAQI
27th Aug 2026462 PMAQI
27th Aug 2026463 PMAQI
27th Aug 2026474 PMAQI
27th Aug 2026465 PMAQI
27th Aug 2026486 PMAQI
27th Aug 2026467 PMAQI
27th Aug 2026478 PMAQI
27th Aug 2026449 PMAQI
27th Aug 20264210 PMAQI
27th Aug 20264011 PMAQI
28th Aug 20264312 AMAQI
28th Aug 2026421 AMAQI
28th Aug 2026432 AMAQI
28th Aug 2026423 AMAQI
28th Aug 2026444 AMAQI
28th Aug 2026385 AMAQI
28th Aug 2026366 AMAQI

26°C20/35°C

28th Aug 2026247 AMAQI
28th Aug 2026288 AMAQI
28th Aug 2026299 AMAQI
28th Aug 20262610 AMAQI
28th Aug 20262811 AMAQI
28th Aug 20263712 PMAQI
28th Aug 2026261 PMAQI
28th Aug 2026382 PMAQI
28th Aug 2026403 PMAQI
28th Aug 2026374 PMAQI
28th Aug 2026395 PMAQI
28th Aug 2026396 PMAQI
28th Aug 2026407 PMAQI
28th Aug 2026388 PMAQI
28th Aug 2026409 PMAQI
28th Aug 20263710 PMAQI
28th Aug 20264011 PMAQI
29th Aug 20263912 AMAQI
29th Aug 2026401 AMAQI
29th Aug 2026402 AMAQI
29th Aug 2026383 AMAQI
29th Aug 2026424 AMAQI
29th Aug 2026435 AMAQI
29th Aug 2026426 AMAQI

27°C20/35°C

29th Aug 2026427 AMAQI
29th Aug 2026458 AMAQI
29th Aug 2026429 AMAQI
29th Aug 20264310 AMAQI
29th Aug 20264411 AMAQI
29th Aug 20264512 PMAQI
29th Aug 2026421 PMAQI
29th Aug 2026442 PMAQI
29th Aug 2026433 PMAQI
29th Aug 2026434 PMAQI
29th Aug 2026415 PMAQI
29th Aug 2026406 PMAQI
29th Aug 2026407 PMAQI
29th Aug 2026388 PMAQI
29th Aug 2026409 PMAQI
29th Aug 20263710 PMAQI
29th Aug 20264411 PMAQI
30th Aug 20262412 AMAQI
30th Aug 2026261 AMAQI
30th Aug 2026362 AMAQI
30th Aug 2026383 AMAQI
30th Aug 2026234 AMAQI
30th Aug 2026275 AMAQI
30th Aug 2026386 AMAQI

27°C20/36°C

30th Aug 2026257 AMAQI
30th Aug 2026378 AMAQI
30th Aug 2026389 AMAQI
30th Aug 20264010 AMAQI
30th Aug 20263711 AMAQI
30th Aug 20264012 PMAQI
30th Aug 2026391 PMAQI
30th Aug 2026382 PMAQI
30th Aug 2026403 PMAQI
30th Aug 2026384 PMAQI
30th Aug 2026385 PMAQI
30th Aug 2026366 PMAQI
30th Aug 2026377 PMAQI
30th Aug 2026248 PMAQI
30th Aug 2026249 PMAQI
30th Aug 20264010 PMAQI
30th Aug 20262411 PMAQI
31st Aug 20262512 AMAQI
31st Aug 2026251 AMAQI
31st Aug 2026382 AMAQI
31st Aug 2026513 AMAQI
31st Aug 2026504 AMAQI
31st Aug 2026445 AMAQI
31st Aug 2026446 AMAQI

28°C21/37°C

31st Aug 2026437 AMAQI
31st Aug 2026448 AMAQI
31st Aug 2026479 AMAQI
31st Aug 20264810 AMAQI
31st Aug 20264611 AMAQI
31st Aug 20264812 PMAQI
31st Aug 2026461 PMAQI
31st Aug 2026422 PMAQI
31st Aug 2026443 PMAQI
31st Aug 2026424 PMAQI
31st Aug 2026425 PMAQI
31st Aug 2026406 PMAQI
31st Aug 2026407 PMAQI
31st Aug 2026408 PMAQI
31st Aug 2026399 PMAQI
31st Aug 20264010 PMAQI
31st Aug 20263911 PMAQI
1st Sep 20263912 AMAQI
1st Sep 2026381 AMAQI
1st Sep 2026392 AMAQI
1st Sep 2026403 AMAQI
1st Sep 2026424 AMAQI
1st Sep 2026415 AMAQI
1st Sep 2026426 AMAQI

28°C21/37°C

1st Sep 2026407 AMAQI
1st Sep 2026448 AMAQI
1st Sep 2026439 AMAQI
1st Sep 20264410 AMAQI
1st Sep 20264311 AMAQI
1st Sep 20264212 PMAQI
1st Sep 2026461 PMAQI
1st Sep 2026472 PMAQI
1st Sep 2026443 PMAQI
1st Sep 2026484 PMAQI
1st Sep 2026465 PMAQI
1st Sep 2026446 PMAQI
1st Sep 2026427 PMAQI
1st Sep 2026428 PMAQI
1st Sep 2026429 PMAQI
1st Sep 20264010 PMAQI
1st Sep 20264111 PMAQI
2nd Sep 20264412 AMAQI
2nd Sep 2026421 AMAQI
2nd Sep 2026442 AMAQI
2nd Sep 2026443 AMAQI
2nd Sep 2026464 AMAQI
2nd Sep 2026465 AMAQI
2nd Sep 2026436 AMAQI

29°C21/38°C

2nd Sep 2026447 AMAQI
2nd Sep 2026458 AMAQI
2nd Sep 2026469 AMAQI
2nd Sep 20264710 AMAQI
2nd Sep 20264811 AMAQI
2nd Sep 20264612 PMAQI
2nd Sep 2026461 PMAQI
2nd Sep 2026442 PMAQI
2nd Sep 2026483 PMAQI
2nd Sep 2026444 PMAQI
2nd Sep 2026465 PMAQI
2nd Sep 2026426 PMAQI
2nd Sep 2026407 PMAQI
2nd Sep 2026288 PMAQI
2nd Sep 2026249 PMAQI
2nd Sep 20262510 PMAQI
2nd Sep 20262311 PMAQI
3rd Sep 20262212 AMAQI
3rd Sep 2026231 AMAQI
3rd Sep 2026262 AMAQI
3rd Sep 2026253 AMAQI
3rd Sep 2026284 AMAQI
3rd Sep 2026285 AMAQI
3rd Sep 2026286 AMAQI

30°C21/39°C

3rd Sep 2026287 AMAQI
3rd Sep 2026288 AMAQI
3rd Sep 2026429 AMAQI
3rd Sep 20264010 AMAQI
3rd Sep 20264311 AMAQI
3rd Sep 20264412 PMAQI
3rd Sep 2026431 PMAQI
3rd Sep 2026442 PMAQI
3rd Sep 2026443 PMAQI
3rd Sep 2026424 PMAQI
3rd Sep 2026445 PMAQI
3rd Sep 2026406 PMAQI
3rd Sep 2026407 PMAQI
3rd Sep 2026288 PMAQI
3rd Sep 2026279 PMAQI
3rd Sep 20262810 PMAQI
3rd Sep 20263311 PMAQI
4th Sep 20263112 AMAQI
4th Sep 2026381 AMAQI
4th Sep 2026392 AMAQI
4th Sep 2026403 AMAQI
4th Sep 2026424 AMAQI
4th Sep 2026435 AMAQI
4th Sep 2026426 AMAQI

30°C23/39°C

4th Sep 2026427 AMAQI
4th Sep 2026448 AMAQI
4th Sep 2026449 AMAQI
4th Sep 20264610 AMAQI
4th Sep 20264611 AMAQI
4th Sep 20264612 PMAQI
4th Sep 2026491 PMAQI
4th Sep 2026502 PMAQI
4th Sep 2026503 PMAQI
4th Sep 2026494 PMAQI
4th Sep 2026485 PMAQI
4th Sep 2026486 PMAQI
4th Sep 2026507 PMAQI
4th Sep 2026468 PMAQI
4th Sep 2026489 PMAQI
4th Sep 20264510 PMAQI
4th Sep 20264511 PMAQI
5th Sep 20264412 AMAQI
5th Sep 2026441 AMAQI
5th Sep 2026432 AMAQI
5th Sep 2026423 AMAQI
5th Sep 2026444 AMAQI
5th Sep 2026435 AMAQI
5th Sep 2026426 AMAQI

30°C23/39°C

5th Sep 2026407 AMAQI
5th Sep 2026438 AMAQI
5th Sep 2026449 AMAQI
5th Sep 20264210 AMAQI
5th Sep 20264411 AMAQI
5th Sep 20264412 PMAQI
5th Sep 2026421 PMAQI
5th Sep 2026462 PMAQI
5th Sep 2026483 PMAQI
5th Sep 2026454 PMAQI
5th Sep 2026445 PMAQI
5th Sep 2026476 PMAQI
5th Sep 2026457 PMAQI
5th Sep 2026448 PMAQI
5th Sep 2026469 PMAQI
5th Sep 20264510 PMAQI
5th Sep 20264611 PMAQI
6th Sep 20264712 AMAQI
6th Sep 2026451 AMAQI
6th Sep 2026482 AMAQI
6th Sep 2026483 AMAQI
6th Sep 2026374 AMAQI
6th Sep 2026485 AMAQI
6th Sep 2026486 AMAQI

29°C23/38°C

6th Sep 2026447 AMAQI
6th Sep 2026418 AMAQI
6th Sep 2026429 AMAQI
6th Sep 20264210 AMAQI
6th Sep 20264411 AMAQI
6th Sep 20264212 PMAQI
6th Sep 2026441 PMAQI
6th Sep 2026452 PMAQI
6th Sep 2026423 PMAQI
6th Sep 2026404 PMAQI
6th Sep 2026405 PMAQI
6th Sep 2026376 PMAQI
6th Sep 2026247 PMAQI
6th Sep 2026288 PMAQI
6th Sep 2026339 PMAQI
6th Sep 20263110 PMAQI
6th Sep 20262611 PMAQI
7th Sep 20263412 AMAQI
7th Sep 2026301 AMAQI
7th Sep 2026282 AMAQI
7th Sep 2026283 AMAQI
7th Sep 2026274 AMAQI
7th Sep 2026355 AMAQI
7th Sep 2026306 AMAQI

28°C21/37°C

7th Sep 2026307 AMAQI
7th Sep 2026338 AMAQI
7th Sep 2026359 AMAQI
7th Sep 20267410 AMAQI
7th Sep 20263011 AMAQI
7th Sep 20263012 PMAQI
7th Sep 2026361 PMAQI
7th Sep 2026462 PMAQI
7th Sep 2026413 PMAQI
7th Sep 2026294 PMAQI
7th Sep 2026295 PMAQI
7th Sep 2026276 PMAQI
7th Sep 2026297 PMAQI
7th Sep 2026268 PMAQI
7th Sep 2026419 PMAQI
7th Sep 20265610 PMAQI
7th Sep 20264311 PMAQI
8th Sep 20264412 AMAQI
8th Sep 2026361 AMAQI
8th Sep 2026292 AMAQI
8th Sep 2026333 AMAQI
8th Sep 2026394 AMAQI
8th Sep 2026425 AMAQI
8th Sep 2026326 AMAQI

25°C21/33°C

8th Sep 2026307 AMAQI
8th Sep 2026348 AMAQI
8th Sep 2026329 AMAQI
8th Sep 20263210 AMAQI
8th Sep 20263011 AMAQI
8th Sep 20263812 PMAQI
8th Sep 2026391 PMAQI
8th Sep 2026562 PMAQI
8th Sep 2026473 PMAQI
8th Sep 2026394 PMAQI
8th Sep 2026345 PMAQI
8th Sep 2026336 PMAQI
8th Sep 2026257 PMAQI
8th Sep 2026288 PMAQI
8th Sep 2026329 PMAQI
8th Sep 20263210 PMAQI
8th Sep 20263011 PMAQI
9th Sep 20263012 AMAQI
9th Sep 2026381 AMAQI
9th Sep 2026362 AMAQI
9th Sep 2026363 AMAQI
9th Sep 2026334 AMAQI
9th Sep 2026255 AMAQI
9th Sep 2026266 AMAQI

26°C20/35°C

9th Sep 2026287 AMAQI
9th Sep 2026288 AMAQI
9th Sep 2026289 AMAQI
9th Sep 20264210 AMAQI
9th Sep 20263811 AMAQI
9th Sep 20263012 PMAQI
9th Sep 2026281 PMAQI
9th Sep 2026292 PMAQI
9th Sep 2026313 PMAQI
9th Sep 2026294 PMAQI
9th Sep 2026265 PMAQI
9th Sep 2026306 PMAQI
9th Sep 2026307 PMAQI
9th Sep 2026268 PMAQI
9th Sep 2026249 PMAQI
9th Sep 20262610 PMAQI
9th Sep 20262211 PMAQI
10th Sep 20262412 AMAQI
10th Sep 2026241 AMAQI
10th Sep 2026242 AMAQI
10th Sep 2026583 AMAQI
10th Sep 2026364 AMAQI
10th Sep 2026255 AMAQI
10th Sep 2026246 AMAQI

27°C19/36°C

10th Sep 2026267 AMAQI
10th Sep 2026458 AMAQI
10th Sep 2026309 AMAQI
10th Sep 20264210 AMAQI
10th Sep 20262911 AMAQI
10th Sep 20262812 PMAQI
10th Sep 2026271 PMAQI
10th Sep 2026282 PMAQI
10th Sep 2026283 PMAQI
10th Sep 2026234 PMAQI
10th Sep 2026455 PMAQI
10th Sep 2026426 PMAQI
10th Sep 2026277 PMAQI
10th Sep 2026248 PMAQI
10th Sep 2026249 PMAQI
10th Sep 20262810 PMAQI
10th Sep 20262811 PMAQI
11th Sep 20262912 AMAQI
11th Sep 2026261 AMAQI
11th Sep 2026272 AMAQI
11th Sep 2026223 AMAQI
11th Sep 2026244 AMAQI
11th Sep 2026215 AMAQI
11th Sep 2026226 AMAQI

27°C19/37°C

11th Sep 2026247 AMAQI
11th Sep 2026258 AMAQI
11th Sep 2026289 AMAQI
11th Sep 20262710 AMAQI
11th Sep 20262511 AMAQI
11th Sep 20262612 PMAQI
11th Sep 2026291 PMAQI
11th Sep 2026212 PMAQI
11th Sep 2026233 PMAQI
11th Sep 2026344 PMAQI
11th Sep 2026255 PMAQI
11th Sep 2026276 PMAQI
11th Sep 2026277 PMAQI
11th Sep 2026248 PMAQI
11th Sep 2026249 PMAQI
11th Sep 20262910 PMAQI
11th Sep 20262911 PMAQI
12th Sep 20262112 AMAQI
12th Sep 2026251 AMAQI
12th Sep 2026252 AMAQI
12th Sep 2026263 AMAQI
12th Sep 2026294 AMAQI
12th Sep 2026295 AMAQI
12th Sep 2026266 AMAQI

29°C21/38°C

12th Sep 2026467 AMAQI
12th Sep 2026388 AMAQI
12th Sep 2026269 AMAQI
12th Sep 20262810 AMAQI
12th Sep 20262611 AMAQI
12th Sep 20264212 PMAQI
12th Sep 2026261 PMAQI
12th Sep 2026532 PMAQI
12th Sep 2026663 PMAQI
12th Sep 2026385 PMAQI
12th Sep 2026486 PMAQI
12th Sep 2026247 PMAQI
12th Sep 2026688 PMAQI
12th Sep 2026449 PMAQI
12th Sep 20266210 PMAQI
12th Sep 20263411 PMAQI
13th Sep 20263212 AMAQI
13th Sep 2026331 AMAQI
13th Sep 2026292 AMAQI
13th Sep 2026403 AMAQI
13th Sep 2026324 AMAQI
13th Sep 2026335 AMAQI
13th Sep 2026346 AMAQI

25°C22/30°C

13th Sep 2026297 AMAQI
13th Sep 2026338 AMAQI
13th Sep 2026429 AMAQI
13th Sep 20264010 AMAQI
13th Sep 20265411 AMAQI
13th Sep 20264212 PMAQI
13th Sep 2026391 PMAQI
13th Sep 2026292 PMAQI
13th Sep 2026263 PMAQI
13th Sep 2026254 PMAQI
13th Sep 2026365 PMAQI
13th Sep 2026566 PMAQI
13th Sep 2026567 PMAQI
13th Sep 2026288 PMAQI
13th Sep 2026269 PMAQI
13th Sep 20262410 PMAQI
13th Sep 20263511 PMAQI
14th Sep 20262412 AMAQI
14th Sep 2026261 AMAQI
14th Sep 2026262 AMAQI
14th Sep 2026383 AMAQI
14th Sep 2026384 AMAQI
14th Sep 2026385 AMAQI
14th Sep 2026406 AMAQI

26°C20/32°C

14th Sep 2026417 AMAQI
14th Sep 2026398 AMAQI
14th Sep 2026409 AMAQI
14th Sep 20263910 AMAQI
14th Sep 20264011 AMAQI
14th Sep 20264412 PMAQI
14th Sep 2026251 PMAQI
14th Sep 2026242 PMAQI
14th Sep 2026403 PMAQI
14th Sep 2026374 PMAQI
14th Sep 2026255 PMAQI
14th Sep 2026266 PMAQI
14th Sep 2026517 PMAQI
14th Sep 2026428 PMAQI
14th Sep 2026349 PMAQI
14th Sep 20263910 PMAQI
14th Sep 20262911 PMAQI
15th Sep 20262812 AMAQI
15th Sep 2026271 AMAQI
15th Sep 2026342 AMAQI
15th Sep 2026273 AMAQI
15th Sep 2026304 AMAQI
15th Sep 2026305 AMAQI
15th Sep 2026276 AMAQI

26°C22/32°C

15th Sep 2026267 AMAQI
15th Sep 2026318 AMAQI
15th Sep 2026269 AMAQI
15th Sep 20263010 AMAQI
15th Sep 20262611 AMAQI
15th Sep 20262812 PMAQI
15th Sep 2026291 PMAQI
15th Sep 2026292 PMAQI
15th Sep 2026383 PMAQI
15th Sep 2026344 PMAQI
15th Sep 2026295 PMAQI
15th Sep 2026296 PMAQI
15th Sep 2026277 PMAQI
15th Sep 2026268 PMAQI
15th Sep 2026299 PMAQI
15th Sep 20263210 PMAQI
15th Sep 20263611 PMAQI
16th Sep 20263412 AMAQI
16th Sep 2026421 AMAQI
16th Sep 2026442 AMAQI
16th Sep 2026443 AMAQI
16th Sep 2026454 AMAQI
16th Sep 2026425 AMAQI
16th Sep 2026436 AMAQI

26°C21/33°C

16th Sep 2026427 AMAQI
16th Sep 2026438 AMAQI
16th Sep 2026459 AMAQI
16th Sep 20264410 AMAQI
16th Sep 20264611 AMAQI
16th Sep 20264412 PMAQI
16th Sep 2026441 PMAQI
16th Sep 2026422 PMAQI
16th Sep 2026463 PMAQI
16th Sep 2026464 PMAQI
16th Sep 2026495 PMAQI
16th Sep 2026496 PMAQI
16th Sep 2026497 PMAQI
16th Sep 2026498 PMAQI
16th Sep 2026509 PMAQI
16th Sep 20264810 PMAQI
16th Sep 20264811 PMAQI
17th Sep 20265112 AMAQI
17th Sep 2026581 AMAQI
17th Sep 2026562 AMAQI
17th Sep 2026533 AMAQI
17th Sep 2026544 AMAQI
17th Sep 2026535 AMAQI
17th Sep 2026566 AMAQI

27°C21/32°C

17th Sep 2026567 AMAQI
17th Sep 2026538 AMAQI
17th Sep 2026549 AMAQI
17th Sep 20265410 AMAQI
17th Sep 20265211 AMAQI
17th Sep 20265212 PMAQI
17th Sep 2026521 PMAQI
17th Sep 2026522 PMAQI
17th Sep 2026523 PMAQI
17th Sep 2026514 PMAQI
17th Sep 2026515 PMAQI
17th Sep 2026506 PMAQI
17th Sep 2026517 PMAQI
17th Sep 2026478 PMAQI
17th Sep 2026479 PMAQI
17th Sep 20264810 PMAQI
17th Sep 20264611 PMAQI
18th Sep 20264812 AMAQI
18th Sep 2026501 AMAQI
18th Sep 2026502 AMAQI
18th Sep 2026483 AMAQI
18th Sep 2026504 AMAQI
18th Sep 2026515 AMAQI
18th Sep 2026506 AMAQI

27°C21/33°C

18th Sep 2026517 AMAQI
18th Sep 2026518 AMAQI
18th Sep 2026519 AMAQI
18th Sep 20265110 AMAQI
18th Sep 20265311 AMAQI
18th Sep 20265312 PMAQI
18th Sep 2026521 PMAQI
18th Sep 2026512 PMAQI
18th Sep 2026543 PMAQI
18th Sep 2026534 PMAQI
18th Sep 2026505 PMAQI
18th Sep 2026446 PMAQI
18th Sep 2026487 PMAQI
18th Sep 2026488 PMAQI
18th Sep 2026429 PMAQI
18th Sep 20264210 PMAQI
18th Sep 20263711 PMAQI
19th Sep 20263812 AMAQI
19th Sep 2026381 AMAQI
19th Sep 2026422 AMAQI
19th Sep 2026223 AMAQI
19th Sep 2026274 AMAQI
19th Sep 2026265 AMAQI
19th Sep 2026386 AMAQI

28°C23/34°C

19th Sep 2026247 AMAQI
19th Sep 2026258 AMAQI
19th Sep 2026249 AMAQI
19th Sep 20262710 AMAQI
19th Sep 20264111 AMAQI
19th Sep 20263812 PMAQI
19th Sep 2026421 PMAQI
19th Sep 2026402 PMAQI
19th Sep 2026263 PMAQI
19th Sep 2026304 PMAQI
19th Sep 2026265 PMAQI
19th Sep 2026276 PMAQI
19th Sep 2026397 PMAQI
19th Sep 2026268 PMAQI
19th Sep 2026289 PMAQI
19th Sep 20262710 PMAQI
19th Sep 20262811 PMAQI
20th Sep 20263112 AMAQI
20th Sep 2026391 AMAQI
20th Sep 2026402 AMAQI
20th Sep 2026343 AMAQI
20th Sep 2026344 AMAQI
20th Sep 2026265 AMAQI
20th Sep 2026416 AMAQI

26°C22/33°C

20th Sep 2026287 AMAQI
20th Sep 2026398 AMAQI
20th Sep 2026389 AMAQI
20th Sep 20264010 AMAQI
20th Sep 20263811 AMAQI
20th Sep 20264112 PMAQI
20th Sep 2026391 PMAQI
20th Sep 2026362 PMAQI
20th Sep 2026383 PMAQI
20th Sep 2026414 PMAQI
20th Sep 2026415 PMAQI
20th Sep 2026446 PMAQI
20th Sep 2026417 PMAQI
20th Sep 2026428 PMAQI
20th Sep 2026409 PMAQI
20th Sep 20264210 PMAQI
20th Sep 20264411 PMAQI
21st Sep 20264512 AMAQI
21st Sep 2026461 AMAQI
21st Sep 2026462 AMAQI
21st Sep 2026463 AMAQI
21st Sep 2026464 AMAQI
21st Sep 2026465 AMAQI
21st Sep 2026426 AMAQI

25°C20/30°C

21st Sep 2026427 AMAQI
21st Sep 2026428 AMAQI
21st Sep 2026459 AMAQI
21st Sep 20265010 AMAQI
21st Sep 20264711 AMAQI
21st Sep 20264512 PMAQI
21st Sep 2026451 PMAQI
21st Sep 2026442 PMAQI
21st Sep 2026483 PMAQI
21st Sep 2026434 PMAQI
21st Sep 2026455 PMAQI
21st Sep 2026476 PMAQI
21st Sep 2026467 PMAQI
21st Sep 2026468 PMAQI
21st Sep 2026469 PMAQI
21st Sep 20264910 PMAQI
21st Sep 20265011 PMAQI
22nd Sep 20265112 AMAQI
22nd Sep 2026501 AMAQI
22nd Sep 2026512 AMAQI
22nd Sep 2026483 AMAQI
22nd Sep 2026454 AMAQI
22nd Sep 2026395 AMAQI
22nd Sep 2026276 AMAQI

25°C20/30°C

22nd Sep 2026307 AMAQI
22nd Sep 2026318 AMAQI
22nd Sep 2026309 AMAQI
22nd Sep 20263410 AMAQI
22nd Sep 20263411 AMAQI
22nd Sep 20264112 PMAQI
22nd Sep 2026321 PMAQI
22nd Sep 2026362 PMAQI
22nd Sep 2026343 PMAQI
22nd Sep 2026304 PMAQI
22nd Sep 2026405 PMAQI
22nd Sep 2026406 PMAQI
22nd Sep 2026297 PMAQI
22nd Sep 2026608 PMAQI
22nd Sep 2026519 PMAQI
22nd Sep 20264210 PMAQI
22nd Sep 20262911 PMAQI
23rd Sep 20262512 AMAQI
23rd Sep 2026241 AMAQI
23rd Sep 2026272 AMAQI
23rd Sep 2026323 AMAQI
23rd Sep 2026294 AMAQI
23rd Sep 2026235 AMAQI
23rd Sep 2026276 AMAQI

23°C20/29°C

23rd Sep 2026407 AMAQI
23rd Sep 2026548 AMAQI
23rd Sep 2026489 AMAQI
23rd Sep 20263610 AMAQI
23rd Sep 20263711 AMAQI
23rd Sep 20263312 PMAQI
23rd Sep 2026301 PMAQI
23rd Sep 20261072 PMAQI
23rd Sep 2026443 PMAQI
23rd Sep 2026354 PMAQI
23rd Sep 2026515 PMAQI
23rd Sep 2026426 PMAQI
23rd Sep 2026297 PMAQI
23rd Sep 2026628 PMAQI
23rd Sep 2026399 PMAQI
23rd Sep 20267410 PMAQI
23rd Sep 20267011 PMAQI
24th Sep 20263912 AMAQI
24th Sep 2026291 AMAQI
24th Sep 2026272 AMAQI
24th Sep 2026283 AMAQI
24th Sep 2026264 AMAQI
24th Sep 2026295 AMAQI
24th Sep 2026226 AMAQI

20°C17/23°C

24th Sep 2026497 AMAQI
7 AM
24th Sep 2026748 AMAQI
24th Sep 2026719 AMAQI
24th Sep 20266310 AMAQI
24th Sep 20263011 AMAQI
24th Sep 20266412 PMAQI
24th Sep 2026801 PMAQI
1 PM
24th Sep 2026642 PMAQI
24th Sep 2026423 PMAQI
24th Sep 2026684 PMAQI
24th Sep 2026525 PMAQI
24th Sep 2026286 PMAQI
24th Sep 2026287 PMAQI
7 PM
24th Sep 2026248 PMAQI
24th Sep 2026269 PMAQI
24th Sep 20264410 PMAQI
24th Sep 20262111 PMAQI
1 AM
6 AM

18°C16/23°C

Day time
Avg. Highest Time
2 PM

44AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
7 AM

36AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 2 PM to 2 PM (Avg. 44), while the lowest AQI was between 7 AM to 7 AM (Avg. 36).
Night time
Avg. Highest Time
10 PM

40AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
12 AM - 6 AM

36AQI

7 hours / Day
210 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 PM to 10 PM (Avg. 40), while the lowest AQI was between 12 AM to 6 AM (Avg. 36).

2026 Days Vs Air Quality

Knoxville, Tennessee, United States

2026

92%

243

8%

20

Total number of days with different AQI categories in last 267 days in 2026 (98 days remaining)

Good
243 Days
Moderate
20 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 92%

Health Risk Level:

Very Low

In 2026, 92% of 267 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

Knoxville, 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
35AQI (US)
2nd January 2026
43AQI (US)
3rd January 2026
50AQI (US)
4th January 2026
38AQI (US)
5th January 2026
42AQI (US)
6th January 2026
31AQI (US)
7th January 2026
39AQI (US)
8th January 2026
48AQI (US)
9th January 2026
39AQI (US)
10th January 2026
22AQI (US)
11th January 2026
15AQI (US)
12th January 2026
28AQI (US)
13th January 2026
36AQI (US)
14th January 2026
19AQI (US)
15th January 2026
13AQI (US)
16th January 2026
28AQI (US)
17th January 2026
19AQI (US)
18th January 2026
16AQI (US)
19th January 2026
22AQI (US)
20th January 2026
18AQI (US)
21st January 2026
40AQI (US)
22nd January 2026
54AQI (US)
23rd January 2026
60AQI (US)
24th January 2026
48AQI (US)
25th January 2026
56AQI (US)
26th January 2026
49AQI (US)
27th January 2026
38AQI (US)
28th January 2026
49AQI (US)
29th January 2026
54AQI (US)
30th January 2026
60AQI (US)
31st January 2026
46AQI (US)
1st February 2026
56AQI (US)
2nd February 2026
53AQI (US)
3rd February 2026
48AQI (US)
4th February 2026
45AQI (US)
5th February 2026
50AQI (US)
6th February 2026
44AQI (US)
7th February 2026
40AQI (US)
8th February 2026
43AQI (US)
9th February 2026
50AQI (US)
10th February 2026
45AQI (US)
11th February 2026
44AQI (US)
12th February 2026
42AQI (US)
13th February 2026
47AQI (US)
14th February 2026
53AQI (US)
15th February 2026
44AQI (US)
16th February 2026
47AQI (US)
17th February 2026
50AQI (US)
18th February 2026
44AQI (US)
19th February 2026
42AQI (US)
20th February 2026
40AQI (US)
21st February 2026
44AQI (US)
22nd February 2026
43AQI (US)
23rd February 2026
42AQI (US)
24th February 2026
44AQI (US)
25th February 2026
44AQI (US)
26th February 2026
38AQI (US)
27th February 2026
36AQI (US)
28th February 2026
33AQI (US)
1st March 2026
36AQI (US)
2nd March 2026
54AQI (US)
3rd March 2026
42AQI (US)
4th March 2026
45AQI (US)
5th March 2026
46AQI (US)
6th March 2026
38AQI (US)
7th March 2026
34AQI (US)
8th March 2026
40AQI (US)
9th March 2026
39AQI (US)
10th March 2026
36AQI (US)
11th March 2026
41AQI (US)
12th March 2026
38AQI (US)
13th March 2026
42AQI (US)
14th March 2026
35AQI (US)
15th March 2026
32AQI (US)
16th March 2026
36AQI (US)
17th March 2026
37AQI (US)
18th March 2026
30AQI (US)
19th March 2026
35AQI (US)
20th March 2026
42AQI (US)
21st March 2026
38AQI (US)
22nd March 2026
34AQI (US)
23rd March 2026
40AQI (US)
24th March 2026
36AQI (US)
25th March 2026
36AQI (US)
26th March 2026
47AQI (US)
27th March 2026
30AQI (US)
28th March 2026
32AQI (US)
29th March 2026
30AQI (US)
30th March 2026
29AQI (US)
31st March 2026
27AQI (US)
1st April 2026
30AQI (US)
2nd April 2026
30AQI (US)
3rd April 2026
36AQI (US)
4th April 2026
32AQI (US)
5th April 2026
32AQI (US)
6th April 2026
34AQI (US)
7th April 2026
29AQI (US)
8th April 2026
38AQI (US)
9th April 2026
29AQI (US)
10th April 2026
33AQI (US)
11th April 2026
32AQI (US)
12th April 2026
27AQI (US)
13th April 2026
39AQI (US)
14th April 2026
32AQI (US)
15th April 2026
34AQI (US)
16th April 2026
30AQI (US)
17th April 2026
18th April 2026
31AQI (US)
19th April 2026
35AQI (US)
20th April 2026
28AQI (US)
21st April 2026
27AQI (US)
22nd April 2026
23rd April 2026
24AQI (US)
24th April 2026
31AQI (US)
25th April 2026
28AQI (US)
26th April 2026
36AQI (US)
27th April 2026
28AQI (US)
28th April 2026
28AQI (US)
29th April 2026
28AQI (US)
30th April 2026
27AQI (US)
1st May 2026
28AQI (US)
2nd May 2026
24AQI (US)
3rd May 2026
22AQI (US)
4th May 2026
36AQI (US)
5th May 2026
40AQI (US)
6th May 2026
35AQI (US)
7th May 2026
28AQI (US)
8th May 2026
32AQI (US)
9th May 2026
10th May 2026
32AQI (US)
11th May 2026
32AQI (US)
12th May 2026
42AQI (US)
13th May 2026
32AQI (US)
14th May 2026
28AQI (US)
15th May 2026
47AQI (US)
16th May 2026
52AQI (US)
17th May 2026
56AQI (US)
18th May 2026
58AQI (US)
19th May 2026
55AQI (US)
20th May 2026
51AQI (US)
21st May 2026
44AQI (US)
22nd May 2026
44AQI (US)
23rd May 2026
52AQI (US)
24th May 2026
48AQI (US)
25th May 2026
46AQI (US)
26th May 2026
29AQI (US)
27th May 2026
27AQI (US)
28th May 2026
27AQI (US)
29th May 2026
26AQI (US)
30th May 2026
26AQI (US)
31st May 2026
29AQI (US)
1st June 2026
32AQI (US)
2nd June 2026
29AQI (US)
3rd June 2026
26AQI (US)
4th June 2026
25AQI (US)
5th June 2026
28AQI (US)
6th June 2026
26AQI (US)
7th June 2026
25AQI (US)
8th June 2026
26AQI (US)
9th June 2026
27AQI (US)
10th June 2026
30AQI (US)
11th June 2026
28AQI (US)
12th June 2026
27AQI (US)
13th June 2026
27AQI (US)
14th June 2026
24AQI (US)
15th June 2026
26AQI (US)
16th June 2026
28AQI (US)
17th June 2026
28AQI (US)
18th June 2026
27AQI (US)
19th June 2026
24AQI (US)
20th June 2026
24AQI (US)
21st June 2026
25AQI (US)
22nd June 2026
24AQI (US)
23rd June 2026
23AQI (US)
24th June 2026
28AQI (US)
25th June 2026
26AQI (US)
26th June 2026
27AQI (US)
27th June 2026
30AQI (US)
28th June 2026
32AQI (US)
29th June 2026
25AQI (US)
30th June 2026
27AQI (US)
1st July 2026
27AQI (US)
2nd July 2026
29AQI (US)
3rd July 2026
31AQI (US)
4th July 2026
34AQI (US)
5th July 2026
44AQI (US)
6th July 2026
35AQI (US)
7th July 2026
29AQI (US)
8th July 2026
27AQI (US)
9th July 2026
36AQI (US)
10th July 2026
32AQI (US)
11th July 2026
31AQI (US)
12th July 2026
48AQI (US)
13th July 2026
28AQI (US)
14th July 2026
29AQI (US)
15th July 2026
29AQI (US)
16th July 2026
30AQI (US)
17th July 2026
33AQI (US)
18th July 2026
32AQI (US)
19th July 2026
41AQI (US)
20th July 2026
40AQI (US)
21st July 2026
38AQI (US)
22nd July 2026
31AQI (US)
23rd July 2026
36AQI (US)
24th July 2026
45AQI (US)
25th July 2026
40AQI (US)
26th July 2026
40AQI (US)
27th July 2026
42AQI (US)
28th July 2026
49AQI (US)
29th July 2026
53AQI (US)
30th July 2026
36AQI (US)
31st July 2026
41AQI (US)
1st August 2026
53AQI (US)
2nd August 2026
37AQI (US)
3rd August 2026
44AQI (US)
4th August 2026
36AQI (US)
5th August 2026
34AQI (US)
6th August 2026
37AQI (US)
7th August 2026
32AQI (US)
8th August 2026
28AQI (US)
9th August 2026
30AQI (US)
10th August 2026
29AQI (US)
11th August 2026
37AQI (US)
12th August 2026
32AQI (US)
13th August 2026
38AQI (US)
14th August 2026
32AQI (US)
15th August 2026
36AQI (US)
16th August 2026
51AQI (US)
17th August 2026
51AQI (US)
18th August 2026
31AQI (US)
19th August 2026
36AQI (US)
20th August 2026
36AQI (US)
21st August 2026
37AQI (US)
22nd August 2026
29AQI (US)
23rd August 2026
33AQI (US)
24th August 2026
32AQI (US)
25th August 2026
28AQI (US)
26th August 2026
32AQI (US)
27th August 2026
44AQI (US)
28th August 2026
36AQI (US)
29th August 2026
42AQI (US)
30th August 2026
34AQI (US)
31st August 2026
42AQI (US)
1st September 2026
42AQI (US)
2nd September 2026
42AQI (US)
3rd September 2026
34AQI (US)
4th September 2026
45AQI (US)
5th September 2026
44AQI (US)
6th September 2026
40AQI (US)
7th September 2026
35AQI (US)
8th September 2026
35AQI (US)
9th September 2026
30AQI (US)
10th September 2026
31AQI (US)
11th September 2026
26AQI (US)
12th September 2026
37AQI (US)
13th September 2026
35AQI (US)
14th September 2026
35AQI (US)
15th September 2026
29AQI (US)
16th September 2026
45AQI (US)
17th September 2026
52AQI (US)
18th September 2026
49AQI (US)
19th September 2026
31AQI (US)
20th September 2026
38AQI (US)
21st September 2026
46AQI (US)
22nd September 2026
39AQI (US)
23rd September 2026
42AQI (US)
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

37AQI (US)

45AQI (US)

37AQI (US)

31AQI (US)

38AQI (US)

27AQI (US)

36AQI (US)

36AQI (US)

38AQI (US)

No. of days

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

202636AQI (US)

26
5
25
3
30
1
28
24
6
30
30
1
28
3
22
1
243
20

Highest AQI (US) recorded in

February

45AQI (US)

Lowest AQI (US) recorded in

June

27AQI (US)

202536AQI (US)

31
28
26
5
26
4
31
19
11
26
5
29
2
27
3
29
2
26
4
24
7
322
43

Highest AQI (US) recorded in

June

42AQI (US)

Lowest AQI (US) recorded in

May

28AQI (US)

202433AQI (US)

25
5
24
5
28
3
26
4
31
20
9
29
2
22
9
30
28
3
27
3
29
2
319
45

Highest AQI (US) recorded in

August

40AQI (US)

Lowest AQI (US) recorded in

September

24AQI (US)

202339AQI (US)

26
5
24
4
24
7
23
7
25
6
17
11
2
22
7
2
25
6
28
2
30
1
21
8
25
6
290
70
4

Highest AQI (US) recorded in

June

56AQI (US)

Lowest AQI (US) recorded in

October

29AQI (US)

202236AQI (US)

20
8
18
3
29
2
21
3
29
2
21
6
20
3
1
25
4
27
4
24
5
25
6
260
46

Highest AQI (US) recorded in

January

43AQI (US)

Lowest AQI (US) recorded in

August

28AQI (US)

202139AQI (US)

25
4
25
3
25
6
25
5
23
8
28
1
18
12
1
20
11
23
7
28
3
25
5
21
10
286
75
1

Highest AQI (US) recorded in

July

52AQI (US)

Lowest AQI (US) recorded in

June

33AQI (US)

202036AQI (US)

10
2
18
3
18
26
4
26
5
31
25
5
26
5
20
10
18
13
218
47

Highest AQI (US) recorded in

December

45AQI (US)

Lowest AQI (US) recorded in

May

27AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2023(Avg.)
39AQI (US)
Least Polluted Year Recorded
2024(Avg.)
33AQI (US)

Knoxville's annual 2026 AQI (US) (36) shows an average percentage change of -1.04% (improved AQI (US)) compared to previous years: 2020 (36), 2021 (39), 2022 (36), 2023 (39), 2024 (33), 2025 (36).