Country Background
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+

August Air Quality Analysis

Knoxville, Tennessee, United States

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
3rd Aug 2021
75AQI
Lowest AQI recorded on
17th Aug 2021
14AQI

Same Day Analysis (21st August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 38 of Good air quality, showing improvement over 2023 and 2021 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 21st Aug - 22nd Aug 2025

Knoxville, Tennessee, United States

AQI
Day
Night
.

6 AM21st Aug 2025

8 PM

5 AM22nd Aug 2025

Day time
Avg. Highest Time
3PM21st Aug

43AQI

Avg. Lowest Time
11AM21st Aug

37AQI

Night time
Avg. Highest Time
1AM22nd Aug

45AQI

Avg. Lowest Time
9PM21st Aug

39AQI

In the last 24 hours,

Knoxville's AQI reached its highest point of 45 at 1 AM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 21st Aug and 22nd Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Knoxville, Tennessee, United States

JulAug
23rd - 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 - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd
Day
Night
23rd Jul 2025356 AMAQI
23rd Jul 2025367 AMAQI
23rd Jul 2025378 AMAQI
23rd Jul 2025409 AMAQI
23rd Jul 20254010 AMAQI
23rd Jul 20254211 AMAQI
23rd Jul 20254212 PMAQI
23rd Jul 2025401 PMAQI
23rd Jul 2025402 PMAQI
23rd Jul 2025403 PMAQI
23rd Jul 2025414 PMAQI
23rd Jul 2025405 PMAQI
23rd Jul 2025376 PMAQI
23rd Jul 2025377 PMAQI
23rd Jul 2025378 PMAQI
23rd Jul 2025369 PMAQI
23rd Jul 20253610 PMAQI
23rd Jul 20253711 PMAQI
24th Jul 20253612 AMAQI
24th Jul 2025371 AMAQI
24th Jul 2025382 AMAQI
24th Jul 2025403 AMAQI
24th Jul 2025414 AMAQI
24th Jul 2025425 AMAQI

28°C23/34°C

24th Jul 2025436 AMAQI
24th Jul 2025467 AMAQI
24th Jul 2025488 AMAQI
24th Jul 2025529 AMAQI
24th Jul 20255210 AMAQI
24th Jul 20255211 AMAQI
24th Jul 20255312 PMAQI
24th Jul 2025531 PMAQI
24th Jul 2025532 PMAQI
24th Jul 2025523 PMAQI
24th Jul 2025524 PMAQI
24th Jul 2025515 PMAQI
24th Jul 2025516 PMAQI
24th Jul 2025507 PMAQI
24th Jul 2025508 PMAQI
24th Jul 2025519 PMAQI
24th Jul 20255110 PMAQI
24th Jul 20255211 PMAQI
25th Jul 20255212 AMAQI
25th Jul 2025521 AMAQI
25th Jul 2025532 AMAQI
25th Jul 2025533 AMAQI
25th Jul 2025544 AMAQI
25th Jul 2025535 AMAQI

29°C22/36°C

25th Jul 2025536 AMAQI
25th Jul 2025537 AMAQI
25th Jul 2025548 AMAQI
25th Jul 2025549 AMAQI
25th Jul 20255410 AMAQI
25th Jul 20255411 AMAQI
25th Jul 20255312 PMAQI
25th Jul 2025491 PMAQI
25th Jul 2025452 PMAQI
25th Jul 2025473 PMAQI
25th Jul 2025464 PMAQI
25th Jul 2025445 PMAQI
25th Jul 2025446 PMAQI
25th Jul 2025507 PMAQI
25th Jul 2025508 PMAQI
25th Jul 2025429 PMAQI
25th Jul 20253910 PMAQI
25th Jul 20254011 PMAQI
26th Jul 20253612 AMAQI
26th Jul 2025281 AMAQI
26th Jul 2025272 AMAQI
26th Jul 2025273 AMAQI
26th Jul 2025294 AMAQI
26th Jul 2025305 AMAQI

29°C23/35°C

26th Jul 2025306 AMAQI
26th Jul 2025307 AMAQI
26th Jul 2025298 AMAQI
26th Jul 2025309 AMAQI
26th Jul 20253110 AMAQI
26th Jul 20253211 AMAQI
26th Jul 20253212 PMAQI
26th Jul 2025311 PMAQI
26th Jul 2025312 PMAQI
26th Jul 2025313 PMAQI
26th Jul 2025314 PMAQI
26th Jul 2025305 PMAQI
26th Jul 2025306 PMAQI
26th Jul 2025317 PMAQI
26th Jul 2025308 PMAQI
26th Jul 2025309 PMAQI
26th Jul 20253010 PMAQI
26th Jul 20252911 PMAQI
27th Jul 20253012 AMAQI
27th Jul 2025281 AMAQI
27th Jul 2025242 AMAQI
27th Jul 2025253 AMAQI
27th Jul 2025254 AMAQI
27th Jul 2025255 AMAQI

29°C24/35°C

27th Jul 2025266 AMAQI
27th Jul 2025277 AMAQI
27th Jul 2025278 AMAQI
27th Jul 2025289 AMAQI
27th Jul 20252910 AMAQI
27th Jul 20252911 AMAQI
27th Jul 20252912 PMAQI
27th Jul 2025291 PMAQI
27th Jul 2025292 PMAQI
27th Jul 2025283 PMAQI
27th Jul 2025284 PMAQI
27th Jul 2025295 PMAQI
27th Jul 2025296 PMAQI
27th Jul 2025297 PMAQI
27th Jul 2025288 PMAQI
27th Jul 2025289 PMAQI
27th Jul 20252810 PMAQI
27th Jul 20252811 PMAQI
28th Jul 20252712 AMAQI
28th Jul 2025241 AMAQI
28th Jul 2025262 AMAQI
28th Jul 2025253 AMAQI
28th Jul 2025234 AMAQI
28th Jul 2025245 AMAQI

30°C25/37°C

28th Jul 2025256 AMAQI
28th Jul 2025257 AMAQI
28th Jul 2025258 AMAQI
28th Jul 2025279 AMAQI
28th Jul 20252810 AMAQI
28th Jul 20252811 AMAQI
28th Jul 20252912 PMAQI
28th Jul 2025261 PMAQI
28th Jul 2025262 PMAQI
28th Jul 2025263 PMAQI
28th Jul 2025274 PMAQI
28th Jul 2025265 PMAQI
28th Jul 2025276 PMAQI
28th Jul 2025277 PMAQI
28th Jul 2025278 PMAQI
28th Jul 2025289 PMAQI
28th Jul 20252910 PMAQI
28th Jul 20252811 PMAQI
29th Jul 20252812 AMAQI
29th Jul 2025281 AMAQI
29th Jul 2025272 AMAQI
29th Jul 2025253 AMAQI
29th Jul 2025264 AMAQI
29th Jul 2025265 AMAQI

28°C24/31°C

29th Jul 2025256 AMAQI
29th Jul 2025267 AMAQI
29th Jul 2025278 AMAQI
29th Jul 2025279 AMAQI
29th Jul 20252810 AMAQI
29th Jul 20252911 AMAQI
29th Jul 20253012 PMAQI
29th Jul 2025321 PMAQI
29th Jul 2025312 PMAQI
29th Jul 2025313 PMAQI
29th Jul 2025324 PMAQI
29th Jul 2025325 PMAQI
29th Jul 2025326 PMAQI
29th Jul 2025307 PMAQI
29th Jul 2025298 PMAQI
29th Jul 2025359 PMAQI
29th Jul 20253510 PMAQI
29th Jul 20253711 PMAQI
30th Jul 20254012 AMAQI
30th Jul 2025421 AMAQI
30th Jul 2025432 AMAQI
30th Jul 2025423 AMAQI
30th Jul 2025444 AMAQI
30th Jul 2025435 AMAQI

28°C23/34°C

30th Jul 2025416 AMAQI
30th Jul 2025427 AMAQI
30th Jul 2025428 AMAQI
30th Jul 2025429 AMAQI
30th Jul 20254210 AMAQI
30th Jul 20254311 AMAQI
30th Jul 20254412 PMAQI
30th Jul 2025421 PMAQI
30th Jul 2025422 PMAQI
30th Jul 2025433 PMAQI
30th Jul 2025434 PMAQI
30th Jul 2025435 PMAQI
30th Jul 2025436 PMAQI
30th Jul 2025437 PMAQI
30th Jul 2025438 PMAQI
30th Jul 2025349 PMAQI
30th Jul 20253210 PMAQI
30th Jul 20253311 PMAQI
31st Jul 20253212 AMAQI
31st Jul 2025271 AMAQI
31st Jul 2025282 AMAQI
31st Jul 2025293 AMAQI
31st Jul 2025294 AMAQI
31st Jul 2025285 AMAQI

28°C24/33°C

31st Jul 2025276 AMAQI
31st Jul 2025287 AMAQI
31st Jul 2025298 AMAQI
31st Jul 2025309 AMAQI
31st Jul 20253110 AMAQI
31st Jul 20253211 AMAQI
31st Jul 20253312 PMAQI
31st Jul 2025341 PMAQI
31st Jul 2025372 PMAQI
31st Jul 2025383 PMAQI
31st Jul 2025364 PMAQI
31st Jul 2025315 PMAQI
31st Jul 2025306 PMAQI
31st Jul 2025297 PMAQI
31st Jul 2025308 PMAQI
31st Jul 2025299 PMAQI
31st Jul 20252910 PMAQI
31st Jul 20252811 PMAQI
1st Aug 20253112 AMAQI
1st Aug 2025321 AMAQI
1st Aug 2025312 AMAQI
1st Aug 2025333 AMAQI
1st Aug 2025334 AMAQI
1st Aug 2025345 AMAQI

28°C23/36°C

1st Aug 2025386 AMAQI
1st Aug 2025437 AMAQI
1st Aug 2025448 AMAQI
1st Aug 2025449 AMAQI
1st Aug 20254110 AMAQI
1st Aug 20254411 AMAQI
1st Aug 20254712 PMAQI
1st Aug 2025491 PMAQI
1st Aug 2025502 PMAQI
1st Aug 2025473 PMAQI
1st Aug 2025454 PMAQI
1st Aug 2025405 PMAQI
1st Aug 2025396 PMAQI
1st Aug 2025377 PMAQI
1st Aug 2025378 PMAQI
1st Aug 2025399 PMAQI
1st Aug 20254010 PMAQI
1st Aug 20254311 PMAQI
2nd Aug 20254412 AMAQI
2nd Aug 2025431 AMAQI
2nd Aug 2025412 AMAQI
2nd Aug 2025383 AMAQI
2nd Aug 2025394 AMAQI
2nd Aug 2025385 AMAQI

26°C22/31°C

2nd Aug 2025396 AMAQI
2nd Aug 2025387 AMAQI
2nd Aug 2025378 AMAQI
2nd Aug 2025369 AMAQI
2nd Aug 20253510 AMAQI
2nd Aug 20253511 AMAQI
2nd Aug 20253712 PMAQI
2nd Aug 2025381 PMAQI
2nd Aug 2025382 PMAQI
2nd Aug 2025393 PMAQI
2nd Aug 2025394 PMAQI
2nd Aug 2025395 PMAQI
2nd Aug 2025406 PMAQI
2nd Aug 2025407 PMAQI
2nd Aug 2025448 PMAQI
2nd Aug 2025469 PMAQI
2nd Aug 20254410 PMAQI
2nd Aug 20253411 PMAQI
3rd Aug 20253112 AMAQI
3rd Aug 2025291 AMAQI
3rd Aug 2025252 AMAQI
3rd Aug 2025253 AMAQI
3rd Aug 2025224 AMAQI
3rd Aug 2025225 AMAQI

23°C20/28°C

3rd Aug 2025206 AMAQI
3rd Aug 2025227 AMAQI
3rd Aug 2025208 AMAQI
3rd Aug 2025199 AMAQI
3rd Aug 20251710 AMAQI
3rd Aug 20251911 AMAQI
3rd Aug 20251812 PMAQI
3rd Aug 2025171 PMAQI
3rd Aug 2025172 PMAQI
3rd Aug 2025193 PMAQI
3rd Aug 2025244 PMAQI
3rd Aug 2025265 PMAQI
3rd Aug 2025286 PMAQI
3rd Aug 2025257 PMAQI
3rd Aug 2025288 PMAQI
3rd Aug 2025319 PMAQI
3rd Aug 20253310 PMAQI
3rd Aug 20253311 PMAQI
4th Aug 20253312 AMAQI
4th Aug 2025321 AMAQI
4th Aug 2025342 AMAQI
4th Aug 2025333 AMAQI
4th Aug 2025334 AMAQI
4th Aug 2025345 AMAQI

22°C20/27°C

4th Aug 2025336 AMAQI
4th Aug 2025347 AMAQI
4th Aug 2025338 AMAQI
4th Aug 2025369 AMAQI
4th Aug 20253610 AMAQI
4th Aug 20253511 AMAQI
4th Aug 20253612 PMAQI
4th Aug 2025361 PMAQI
4th Aug 2025372 PMAQI
4th Aug 2025373 PMAQI
4th Aug 2025374 PMAQI
4th Aug 2025345 PMAQI
4th Aug 2025356 PMAQI
4th Aug 2025337 PMAQI
4th Aug 2025328 PMAQI
4th Aug 2025299 PMAQI
4th Aug 20252810 PMAQI
4th Aug 20253011 PMAQI
5th Aug 20253012 AMAQI
5th Aug 2025301 AMAQI
5th Aug 2025302 AMAQI
5th Aug 2025323 AMAQI
5th Aug 2025314 AMAQI
5th Aug 2025285 AMAQI

22°C16/29°C

5th Aug 2025276 AMAQI
5th Aug 2025287 AMAQI
5th Aug 2025298 AMAQI
5th Aug 2025299 AMAQI
5th Aug 20252910 AMAQI
5th Aug 20252711 AMAQI
5th Aug 20252812 PMAQI
5th Aug 2025271 PMAQI
5th Aug 2025272 PMAQI
5th Aug 2025263 PMAQI
5th Aug 2025254 PMAQI
5th Aug 2025235 PMAQI
5th Aug 2025236 PMAQI
5th Aug 2025287 PMAQI
5th Aug 2025258 PMAQI
5th Aug 2025239 PMAQI
5th Aug 20252210 PMAQI
5th Aug 20252511 PMAQI
6th Aug 20252512 AMAQI
6th Aug 2025241 AMAQI
6th Aug 2025242 AMAQI
6th Aug 2025243 AMAQI
6th Aug 2025254 AMAQI
6th Aug 2025255 AMAQI

24°C18/32°C

6th Aug 2025236 AMAQI
6th Aug 2025247 AMAQI
6th Aug 2025258 AMAQI
6th Aug 2025259 AMAQI
6th Aug 20252910 AMAQI
6th Aug 20253011 AMAQI
6th Aug 20253512 PMAQI
6th Aug 2025381 PMAQI
6th Aug 2025392 PMAQI
6th Aug 2025393 PMAQI
6th Aug 2025404 PMAQI
6th Aug 2025405 PMAQI
6th Aug 2025366 PMAQI
6th Aug 2025257 PMAQI
6th Aug 2025298 PMAQI
6th Aug 2025349 PMAQI
6th Aug 20253210 PMAQI
6th Aug 20253011 PMAQI
7th Aug 20252912 AMAQI
7th Aug 2025281 AMAQI
7th Aug 2025272 AMAQI
7th Aug 2025283 AMAQI
7th Aug 2025274 AMAQI
7th Aug 2025275 AMAQI

25°C20/32°C

7th Aug 2025286 AMAQI
7th Aug 2025287 AMAQI
7th Aug 2025298 AMAQI
7th Aug 2025309 AMAQI
7th Aug 20253110 AMAQI
7th Aug 20253511 AMAQI
7th Aug 20254012 PMAQI
7th Aug 2025411 PMAQI
7th Aug 2025422 PMAQI
7th Aug 2025423 PMAQI
7th Aug 2025404 PMAQI
7th Aug 2025395 PMAQI
7th Aug 2025386 PMAQI
7th Aug 2025347 PMAQI
7th Aug 2025368 PMAQI
7th Aug 2025399 PMAQI
7th Aug 20253810 PMAQI
7th Aug 20253611 PMAQI
8th Aug 20253612 AMAQI
8th Aug 2025341 AMAQI
8th Aug 2025352 AMAQI
8th Aug 2025373 AMAQI
8th Aug 2025364 AMAQI
8th Aug 2025375 AMAQI

25°C19/32°C

8th Aug 2025366 AMAQI
8th Aug 2025387 AMAQI
8th Aug 2025378 AMAQI
8th Aug 2025389 AMAQI
8th Aug 20254010 AMAQI
8th Aug 20254011 AMAQI
8th Aug 20254012 PMAQI
8th Aug 2025451 PMAQI
8th Aug 2025462 PMAQI
8th Aug 2025453 PMAQI
8th Aug 2025454 PMAQI
8th Aug 2025445 PMAQI
8th Aug 2025406 PMAQI
8th Aug 2025407 PMAQI
8th Aug 2025418 PMAQI
8th Aug 2025419 PMAQI
8th Aug 20254510 PMAQI
8th Aug 20254611 PMAQI
9th Aug 20254512 AMAQI
9th Aug 2025441 AMAQI
9th Aug 2025432 AMAQI
9th Aug 2025463 AMAQI
9th Aug 2025474 AMAQI
9th Aug 2025495 AMAQI

25°C20/32°C

9th Aug 2025536 AMAQI
9th Aug 2025557 AMAQI
9th Aug 2025568 AMAQI
9th Aug 2025609 AMAQI
9th Aug 20256210 AMAQI
9th Aug 20256011 AMAQI
9th Aug 20256012 PMAQI
9th Aug 2025581 PMAQI
9th Aug 2025582 PMAQI
9th Aug 2025563 PMAQI
9th Aug 2025564 PMAQI
9th Aug 2025555 PMAQI
9th Aug 2025556 PMAQI
9th Aug 2025557 PMAQI
9th Aug 2025568 PMAQI
9th Aug 2025569 PMAQI
9th Aug 20255610 PMAQI
9th Aug 20255611 PMAQI
10th Aug 20255612 AMAQI
10th Aug 2025561 AMAQI
10th Aug 2025552 AMAQI
10th Aug 2025553 AMAQI
10th Aug 2025534 AMAQI
10th Aug 2025535 AMAQI

26°C21/32°C

10th Aug 2025526 AMAQI
10th Aug 2025537 AMAQI
10th Aug 2025528 AMAQI
10th Aug 2025539 AMAQI
10th Aug 20255410 AMAQI
10th Aug 20255811 AMAQI
10th Aug 20255412 PMAQI
10th Aug 2025541 PMAQI
10th Aug 2025542 PMAQI
10th Aug 2025553 PMAQI
10th Aug 2025544 PMAQI
10th Aug 2025545 PMAQI
10th Aug 2025536 PMAQI
10th Aug 2025547 PMAQI
10th Aug 2025538 PMAQI
10th Aug 2025529 PMAQI
10th Aug 20255210 PMAQI
10th Aug 20255211 PMAQI
11th Aug 20255112 AMAQI
11th Aug 2025461 AMAQI
11th Aug 2025482 AMAQI
11th Aug 2025463 AMAQI
11th Aug 2025434 AMAQI
11th Aug 2025395 AMAQI

26°C19/34°C

11th Aug 2025386 AMAQI
11th Aug 2025377 AMAQI
11th Aug 2025338 AMAQI
11th Aug 2025329 AMAQI
11th Aug 20253410 AMAQI
11th Aug 20253211 AMAQI
11th Aug 20252912 PMAQI
11th Aug 2025291 PMAQI
11th Aug 2025302 PMAQI
11th Aug 2025283 PMAQI
11th Aug 2025294 PMAQI
11th Aug 2025265 PMAQI
11th Aug 2025246 PMAQI
11th Aug 2025367 PMAQI
11th Aug 2025288 PMAQI
11th Aug 2025179 PMAQI
11th Aug 20251510 PMAQI
11th Aug 20251611 PMAQI
12th Aug 20251712 AMAQI
12th Aug 2025181 AMAQI
12th Aug 2025182 AMAQI
12th Aug 2025193 AMAQI
12th Aug 2025204 AMAQI
12th Aug 2025215 AMAQI

27°C22/34°C

12th Aug 2025266 AMAQI
12th Aug 2025187 AMAQI
12th Aug 2025208 AMAQI
12th Aug 2025219 AMAQI
12th Aug 20252010 AMAQI
12th Aug 20252011 AMAQI
12th Aug 20252112 PMAQI
12th Aug 2025211 PMAQI
12th Aug 2025202 PMAQI
12th Aug 2025213 PMAQI
12th Aug 2025224 PMAQI
12th Aug 2025225 PMAQI
12th Aug 2025226 PMAQI
12th Aug 2025207 PMAQI
12th Aug 2025228 PMAQI
12th Aug 2025269 PMAQI
12th Aug 20252510 PMAQI
12th Aug 20252811 PMAQI
13th Aug 20252812 AMAQI
13th Aug 2025301 AMAQI
13th Aug 2025302 AMAQI
13th Aug 2025283 AMAQI
13th Aug 2025284 AMAQI
13th Aug 2025275 AMAQI

25°C22/28°C

13th Aug 2025266 AMAQI
13th Aug 2025267 AMAQI
13th Aug 2025258 AMAQI
13th Aug 2025249 AMAQI
13th Aug 20252210 AMAQI
13th Aug 20252011 AMAQI
13th Aug 20251912 PMAQI
13th Aug 2025191 PMAQI
13th Aug 2025182 PMAQI
13th Aug 2025183 PMAQI
13th Aug 2025174 PMAQI
13th Aug 2025185 PMAQI
13th Aug 2025186 PMAQI
13th Aug 2025257 PMAQI
13th Aug 2025218 PMAQI
13th Aug 2025199 PMAQI
13th Aug 20252210 PMAQI
13th Aug 20252311 PMAQI
14th Aug 20252512 AMAQI
14th Aug 2025291 AMAQI
14th Aug 2025282 AMAQI
14th Aug 2025293 AMAQI
14th Aug 2025284 AMAQI
14th Aug 2025315 AMAQI

27°C22/32°C

14th Aug 2025296 AMAQI
14th Aug 2025267 AMAQI
14th Aug 2025248 AMAQI
14th Aug 2025289 AMAQI
14th Aug 20252710 AMAQI
14th Aug 20253011 AMAQI
14th Aug 20253112 PMAQI
14th Aug 2025321 PMAQI
14th Aug 2025352 PMAQI
14th Aug 2025373 PMAQI
14th Aug 2025384 PMAQI
14th Aug 2025365 PMAQI
14th Aug 2025336 PMAQI
14th Aug 2025267 PMAQI
14th Aug 2025298 PMAQI
14th Aug 2025349 PMAQI
14th Aug 20253610 PMAQI
14th Aug 20253911 PMAQI
15th Aug 20254212 AMAQI
15th Aug 2025431 AMAQI
15th Aug 2025462 AMAQI
15th Aug 2025463 AMAQI
15th Aug 2025444 AMAQI
15th Aug 2025455 AMAQI

26°C21/33°C

15th Aug 2025436 AMAQI
15th Aug 2025427 AMAQI
15th Aug 2025408 AMAQI
15th Aug 2025429 AMAQI
15th Aug 20254610 AMAQI
15th Aug 20254911 AMAQI
15th Aug 20255112 PMAQI
15th Aug 2025521 PMAQI
15th Aug 2025512 PMAQI
15th Aug 2025503 PMAQI
15th Aug 2025484 PMAQI
15th Aug 2025485 PMAQI
15th Aug 2025486 PMAQI
15th Aug 2025457 PMAQI
15th Aug 2025458 PMAQI
15th Aug 2025489 PMAQI
15th Aug 20254910 PMAQI
15th Aug 20254911 PMAQI
16th Aug 20254812 AMAQI
16th Aug 2025511 AMAQI
16th Aug 2025512 AMAQI
16th Aug 2025523 AMAQI
16th Aug 2025504 AMAQI
16th Aug 2025515 AMAQI

27°C22/34°C

16th Aug 2025506 AMAQI
16th Aug 2025527 AMAQI
16th Aug 2025518 AMAQI
16th Aug 2025529 AMAQI
16th Aug 20255310 AMAQI
16th Aug 20255511 AMAQI
16th Aug 20254912 PMAQI
16th Aug 2025461 PMAQI
16th Aug 2025502 PMAQI
16th Aug 2025503 PMAQI
16th Aug 2025484 PMAQI
16th Aug 2025495 PMAQI
16th Aug 2025516 PMAQI
16th Aug 2025527 PMAQI
16th Aug 2025468 PMAQI
16th Aug 2025399 PMAQI
16th Aug 20253710 PMAQI
16th Aug 20253311 PMAQI
17th Aug 20253712 AMAQI
17th Aug 2025361 AMAQI
17th Aug 2025382 AMAQI
17th Aug 2025423 AMAQI
17th Aug 2025424 AMAQI
17th Aug 2025445 AMAQI

28°C22/36°C

17th Aug 2025436 AMAQI
17th Aug 2025407 AMAQI
17th Aug 2025408 AMAQI
17th Aug 2025439 AMAQI
17th Aug 20254510 AMAQI
17th Aug 20254811 AMAQI
17th Aug 20254912 PMAQI
17th Aug 2025521 PMAQI
17th Aug 2025522 PMAQI
17th Aug 2025513 PMAQI
17th Aug 2025504 PMAQI
17th Aug 2025475 PMAQI
17th Aug 2025476 PMAQI
17th Aug 2025427 PMAQI
17th Aug 2025468 PMAQI
17th Aug 2025469 PMAQI
17th Aug 20254710 PMAQI
17th Aug 20254611 PMAQI
18th Aug 20254812 AMAQI
18th Aug 2025481 AMAQI
18th Aug 2025492 AMAQI
18th Aug 2025503 AMAQI
18th Aug 2025504 AMAQI
18th Aug 2025515 AMAQI

26°C21/32°C

18th Aug 2025516 AMAQI
18th Aug 2025517 AMAQI
18th Aug 2025508 AMAQI
18th Aug 2025519 AMAQI
18th Aug 20255110 AMAQI
18th Aug 20255111 AMAQI
18th Aug 20255112 PMAQI
18th Aug 2025521 PMAQI
18th Aug 2025512 PMAQI
18th Aug 2025503 PMAQI
18th Aug 2025504 PMAQI
18th Aug 2025495 PMAQI
18th Aug 2025476 PMAQI
18th Aug 2025497 PMAQI
18th Aug 2025478 PMAQI
18th Aug 2025459 PMAQI
18th Aug 20254410 PMAQI
18th Aug 20254411 PMAQI
19th Aug 20254212 AMAQI
19th Aug 2025441 AMAQI
19th Aug 2025432 AMAQI
19th Aug 2025393 AMAQI
19th Aug 2025384 AMAQI
19th Aug 2025415 AMAQI

27°C21/35°C

19th Aug 2025426 AMAQI
19th Aug 2025427 AMAQI
19th Aug 2025418 AMAQI
19th Aug 2025439 AMAQI
19th Aug 20254810 AMAQI
19th Aug 20254811 AMAQI
19th Aug 20255012 PMAQI
19th Aug 2025511 PMAQI
19th Aug 2025532 PMAQI
19th Aug 2025533 PMAQI
19th Aug 2025524 PMAQI
19th Aug 2025515 PMAQI
19th Aug 2025516 PMAQI
19th Aug 2025457 PMAQI
19th Aug 2025478 PMAQI
19th Aug 2025509 PMAQI
19th Aug 20255010 PMAQI
19th Aug 20254911 PMAQI
20th Aug 20254812 AMAQI
20th Aug 2025451 AMAQI
20th Aug 2025442 AMAQI
20th Aug 2025443 AMAQI
20th Aug 2025434 AMAQI
20th Aug 2025465 AMAQI

27°C22/33°C

20th Aug 2025456 AMAQI
20th Aug 2025447 AMAQI
20th Aug 2025448 AMAQI
20th Aug 2025459 AMAQI
20th Aug 20254510 AMAQI
20th Aug 20254511 AMAQI
20th Aug 20254912 PMAQI
20th Aug 2025521 PMAQI
20th Aug 2025512 PMAQI
20th Aug 2025493 PMAQI
20th Aug 2025524 PMAQI
20th Aug 2025465 PMAQI
20th Aug 2025406 PMAQI
20th Aug 2025467 PMAQI
20th Aug 2025388 PMAQI
20th Aug 2025349 PMAQI
20th Aug 20253310 PMAQI
20th Aug 20253411 PMAQI
21st Aug 20253612 AMAQI
21st Aug 2025361 AMAQI
21st Aug 2025362 AMAQI
21st Aug 2025343 AMAQI
21st Aug 2025374 AMAQI
21st Aug 2025375 AMAQI

26°C22/31°C

21st Aug 2025406 AMAQI
21st Aug 2025387 AMAQI
21st Aug 2025378 AMAQI
21st Aug 2025379 AMAQI
21st Aug 20253810 AMAQI
21st Aug 20253711 AMAQI
21st Aug 20253812 PMAQI
21st Aug 2025421 PMAQI
21st Aug 2025422 PMAQI
21st Aug 2025433 PMAQI
21st Aug 2025424 PMAQI
21st Aug 2025435 PMAQI
21st Aug 2025436 PMAQI
21st Aug 2025387 PMAQI
21st Aug 2025398 PMAQI
21st Aug 2025399 PMAQI
21st Aug 20254010 PMAQI
21st Aug 20254011 PMAQI
22nd Aug 20254112 AMAQI
22nd Aug 2025451 AMAQI

27°C23/34°C

6 AM
1 PM
8 PM
1 AM
5 AM

--°C/°C

Day time
Avg. Highest Time
6 AM - 8 PM

38AQI

15 hours / Day
450 hours / Month
Avg. Lowest Time
6 AM - 8 PM

38AQI

15 hours / Day
450 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 8 PM (Avg. 38), while the lowest AQI was between 6 AM to 8 PM (Avg. 38).
Night time
Avg. Highest Time
12 AM - 11 PM

36AQI

9 hours / Day
270 hours / Month
Avg. Lowest Time
12 AM - 11 PM

36AQI

9 hours / Day
270 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 36), while the lowest AQI was between 12 AM to 11 PM (Avg. 36).

2025 Days Vs Air Quality

Knoxville, Tennessee, United States

2025

88%

206

12%

27

Total number of days with different AQI categories in last 234 days in 2025 (131 days remaining)

Good
206 Days
Moderate
27 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 88%

Health Risk Level:

Low

In 2025, 88% of 234 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

Knoxville, Tennessee, 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
20AQI
2nd January 2025
26AQI
3rd January 2025
27AQI
4th January 2025
23AQI
5th January 2025
28AQI
6th January 2025
21AQI
7th January 2025
22AQI
8th January 2025
27AQI
9th January 2025
40AQI
10th January 2025
43AQI
11th January 2025
33AQI
12th January 2025
47AQI
13th January 2025
42AQI
14th January 2025
24AQI
15th January 2025
33AQI
16th January 2025
33AQI
17th January 2025
37AQI
18th January 2025
37AQI
19th January 2025
21AQI
20th January 2025
22AQI
21st January 2025
26AQI
22nd January 2025
34AQI
23rd January 2025
45AQI
24th January 2025
38AQI
25th January 2025
44AQI
26th January 2025
41AQI
27th January 2025
46AQI
28th January 2025
34AQI
29th January 2025
30AQI
30th January 2025
38AQI
31st January 2025
31AQI
1st February 2025
27AQI
2nd February 2025
36AQI
3rd February 2025
36AQI
4th February 2025
39AQI
5th February 2025
46AQI
6th February 2025
36AQI
7th February 2025
22AQI
8th February 2025
30AQI
9th February 2025
23AQI
10th February 2025
25AQI
11th February 2025
23AQI
12th February 2025
24AQI
13th February 2025
25AQI
14th February 2025
28AQI
15th February 2025
33AQI
16th February 2025
27AQI
17th February 2025
24AQI
18th February 2025
24AQI
19th February 2025
24AQI
20th February 2025
26AQI
21st February 2025
24AQI
22nd February 2025
33AQI
23rd February 2025
40AQI
24th February 2025
40AQI
25th February 2025
40AQI
26th February 2025
32AQI
27th February 2025
38AQI
28th February 2025
22AQI
1st March 2025
29AQI
2nd March 2025
23AQI
3rd March 2025
29AQI
4th March 2025
35AQI
5th March 2025
26AQI
6th March 2025
25AQI
7th March 2025
32AQI
8th March 2025
35AQI
9th March 2025
26AQI
10th March 2025
33AQI
11th March 2025
59AQI
12th March 2025
58AQI
13th March 2025
59AQI
14th March 2025
41AQI
15th March 2025
36AQI
16th March 2025
35AQI
17th March 2025
20AQI
18th March 2025
27AQI
19th March 2025
37AQI
20th March 2025
24AQI
21st March 2025
20AQI
22nd March 2025
28AQI
23rd March 2025
27AQI
24th March 2025
24AQI
25th March 2025
23AQI
26th March 2025
27AQI
27th March 2025
37AQI
28th March 2025
54AQI
29th March 2025
58AQI
30th March 2025
44AQI
31st March 2025
22AQI
1st April 2025
19AQI
2nd April 2025
30AQI
3rd April 2025
39AQI
4th April 2025
48AQI
5th April 2025
44AQI
6th April 2025
20AQI
7th April 2025
15AQI
8th April 2025
23AQI
9th April 2025
21AQI
10th April 2025
41AQI
11th April 2025
36AQI
12th April 2025
36AQI
13th April 2025
33AQI
14th April 2025
41AQI
15th April 2025
31AQI
16th April 2025
28AQI
17th April 2025
43AQI
18th April 2025
57AQI
19th April 2025
57AQI
20th April 2025
62AQI
21st April 2025
49AQI
22nd April 2025
43AQI
23rd April 2025
31AQI
24th April 2025
30AQI
25th April 2025
41AQI
26th April 2025
39AQI
27th April 2025
27AQI
28th April 2025
38AQI
29th April 2025
47AQI
30th April 2025
53AQI
1st May 2025
46AQI
2nd May 2025
31AQI
3rd May 2025
19AQI
4th May 2025
18AQI
5th May 2025
19AQI
6th May 2025
27AQI
7th May 2025
31AQI
8th May 2025
39AQI
9th May 2025
28AQI
10th May 2025
25AQI
11th May 2025
27AQI
12th May 2025
18AQI
13th May 2025
20AQI
14th May 2025
31AQI
15th May 2025
48AQI
16th May 2025
50AQI
17th May 2025
26AQI
18th May 2025
30AQI
19th May 2025
39AQI
20th May 2025
40AQI
21st May 2025
25AQI
22nd May 2025
18AQI
23rd May 2025
17AQI
24th May 2025
24AQI
25th May 2025
30AQI
26th May 2025
25AQI
27th May 2025
17AQI
28th May 2025
20AQI
29th May 2025
28AQI
30th May 2025
20AQI
31st May 2025
34AQI
1st June 2025
50AQI
2nd June 2025
51AQI
3rd June 2025
58AQI
4th June 2025
63AQI
5th June 2025
59AQI
6th June 2025
53AQI
7th June 2025
30AQI
8th June 2025
28AQI
9th June 2025
37AQI
10th June 2025
34AQI
11th June 2025
55AQI
12th June 2025
59AQI
13th June 2025
36AQI
14th June 2025
25AQI
15th June 2025
27AQI
16th June 2025
36AQI
17th June 2025
25AQI
18th June 2025
24AQI
19th June 2025
25AQI
20th June 2025
33AQI
21st June 2025
43AQI
22nd June 2025
45AQI
23rd June 2025
53AQI
24th June 2025
57AQI
25th June 2025
52AQI
26th June 2025
54AQI
27th June 2025
48AQI
28th June 2025
34AQI
29th June 2025
36AQI
30th June 2025
35AQI
1st July 2025
37AQI
2nd July 2025
29AQI
3rd July 2025
39AQI
4th July 2025
52AQI
5th July 2025
62AQI
6th July 2025
59AQI
7th July 2025
55AQI
8th July 2025
54AQI
9th July 2025
47AQI
10th July 2025
34AQI
11th July 2025
37AQI
12th July 2025
39AQI
13th July 2025
39AQI
14th July 2025
32AQI
15th July 2025
36AQI
16th July 2025
36AQI
17th July 2025
32AQI
18th July 2025
28AQI
19th July 2025
25AQI
20th July 2025
41AQI
21st July 2025
44AQI
22nd July 2025
35AQI
23rd July 2025
37AQI
24th July 2025
47AQI
25th July 2025
49AQI
26th July 2025
30AQI
27th July 2025
28AQI
28th July 2025
26AQI
29th July 2025
30AQI
30th July 2025
41AQI
31st July 2025
30AQI
1st August 2025
39AQI
2nd August 2025
40AQI
3rd August 2025
25AQI
4th August 2025
33AQI
5th August 2025
27AQI
6th August 2025
29AQI
7th August 2025
33AQI
8th August 2025
40AQI
9th August 2025
53AQI
10th August 2025
54AQI
11th August 2025
33AQI
12th August 2025
21AQI
13th August 2025
23AQI
14th August 2025
31AQI
15th August 2025
46AQI
16th August 2025
48AQI
17th August 2025
44AQI
18th August 2025
49AQI
19th August 2025
46AQI
20th August 2025
44AQI
21st August 2025
38AQI
22nd August 2025
23rd August 2025
24th August 2025
25th August 2025
26th August 2025
27th August 2025
28th August 2025
29th August 2025
30th August 2025
31st August 2025
1st September 2025
2nd September 2025
3rd September 2025
4th September 2025
5th September 2025
6th September 2025
7th September 2025
8th September 2025
9th September 2025
10th September 2025
11th September 2025
12th September 2025
13th September 2025
14th September 2025
15th September 2025
16th September 2025
17th September 2025
18th September 2025
19th September 2025
20th September 2025
21st September 2025
22nd September 2025
23rd September 2025
24th September 2025
25th September 2025
26th September 2025
27th September 2025
28th September 2025
29th September 2025
30th September 2025
1st October 2025
2nd October 2025
3rd October 2025
4th October 2025
5th October 2025
6th October 2025
7th October 2025
8th October 2025
9th October 2025
10th October 2025
11th October 2025
12th October 2025
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

33AQI

30AQI

34AQI

37AQI

28AQI

42AQI

39AQI

38AQI

No. of days

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

202535AQI

31
28
26
5
26
4
31
19
11
26
5
19
2
206
27

Highest AQI recorded in

June

42AQI

Lowest AQI recorded in

May

28AQI

202433AQI

26
5
24
5
28
3
26
4
31
20
9
29
2
22
9
30
28
3
27
3
29
2
320
45

Highest AQI recorded in

August

40AQI

Lowest AQI recorded in

September

24AQI

202339AQI

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 recorded in

June

56AQI

Lowest AQI recorded in

October

29AQI

202236AQI

21
8
18
3
29
2
21
3
29
2
21
6
20
3
1
25
4
27
4
24
5
25
6
261
46

Highest AQI recorded in

June

43AQI

Lowest AQI recorded in

August

28AQI

202139AQI

26
4
25
3
25
6
25
5
23
8
28
1
18
12
1
20
11
23
7
28
3
25
5
21
10
287
75
1

Highest AQI recorded in

July

52AQI

Lowest AQI recorded in

June

33AQI

202036AQI

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

Highest AQI recorded in

December

45AQI

Lowest AQI recorded in

May

27AQI

Most & Least Polluted Years Over the Last 6 Years

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

Knoxville's annual 2025 AQI (35) shows an average percentage change of -3.08% (improved AQI) compared to previous years: 2020 (36), 2021 (39), 2022 (36), 2023 (39), 2024 (33).