Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Louisville, Kentucky, 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

Louisville, Kentucky, United States

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
2nd Aug 2021
90AQI
Lowest AQI recorded on
31st Aug 2023
19AQI

Same Day Analysis (7th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 47 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: 7th Aug - 8th Aug 2025

Louisville, Kentucky, United States

AQI
Day
Night
.

6 AM7th Aug 2025

9 PM

5 AM8th Aug 2025

Day time
Avg. Highest Time
9AM7th Aug

53AQI

Avg. Lowest Time
12PM7th Aug

46AQI

Night time
Avg. Highest Time
11PM7th Aug

50AQI

Avg. Lowest Time
12AM8th Aug

48AQI

In the last 24 hours,

Louisville's AQI reached its highest point of 53 at 9 AM during the Day, while the lowest point, undefined, was recorded at 5 AM during the Night between 7th Aug and 8th Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Louisville, Kentucky, United States

JulAug
09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th
Day
Night
9th Jul 2025586 AMAQI
9th Jul 2025597 AMAQI
9th Jul 2025588 AMAQI
9th Jul 2025569 AMAQI
9th Jul 20255410 AMAQI
9th Jul 20255311 AMAQI
9th Jul 20255312 PMAQI
9th Jul 2025531 PMAQI
9th Jul 2025542 PMAQI
9th Jul 2025553 PMAQI
9th Jul 2025554 PMAQI
9th Jul 2025555 PMAQI
9th Jul 2025546 PMAQI
9th Jul 2025547 PMAQI
9th Jul 2025548 PMAQI
9th Jul 2025539 PMAQI
9th Jul 20255310 PMAQI
9th Jul 20255311 PMAQI
10th Jul 20255212 AMAQI
10th Jul 2025481 AMAQI
10th Jul 2025472 AMAQI
10th Jul 2025473 AMAQI
10th Jul 2025474 AMAQI
10th Jul 2025475 AMAQI

25°C22/28°C

10th Jul 2025476 AMAQI
10th Jul 2025497 AMAQI
10th Jul 2025518 AMAQI
10th Jul 2025519 AMAQI
10th Jul 20255010 AMAQI
10th Jul 20255011 AMAQI
10th Jul 20254712 PMAQI
10th Jul 2025441 PMAQI
10th Jul 2025442 PMAQI
10th Jul 2025453 PMAQI
10th Jul 2025454 PMAQI
10th Jul 2025445 PMAQI
10th Jul 2025436 PMAQI
10th Jul 2025467 PMAQI
10th Jul 2025468 PMAQI
10th Jul 2025419 PMAQI
10th Jul 20254210 PMAQI
10th Jul 20254311 PMAQI
11th Jul 20254412 AMAQI
11th Jul 2025421 AMAQI
11th Jul 2025452 AMAQI
11th Jul 2025483 AMAQI
11th Jul 2025464 AMAQI
11th Jul 2025465 AMAQI

27°C22/33°C

11th Jul 2025506 AMAQI
11th Jul 2025507 AMAQI
11th Jul 2025538 AMAQI
11th Jul 2025569 AMAQI
11th Jul 20255410 AMAQI
11th Jul 20255111 AMAQI
11th Jul 20254612 PMAQI
11th Jul 2025451 PMAQI
11th Jul 2025472 PMAQI
11th Jul 2025483 PMAQI
11th Jul 2025494 PMAQI
11th Jul 2025505 PMAQI
11th Jul 2025496 PMAQI
11th Jul 2025487 PMAQI
11th Jul 2025478 PMAQI
11th Jul 2025459 PMAQI
11th Jul 20254810 PMAQI
11th Jul 20254811 PMAQI
12th Jul 20254812 AMAQI
12th Jul 2025461 AMAQI
12th Jul 2025472 AMAQI
12th Jul 2025473 AMAQI
12th Jul 2025454 AMAQI
12th Jul 2025455 AMAQI

28°C20/34°C

12th Jul 2025456 AMAQI
12th Jul 2025467 AMAQI
12th Jul 2025498 AMAQI
12th Jul 2025509 AMAQI
12th Jul 20255310 AMAQI
12th Jul 20255311 AMAQI
12th Jul 20255412 PMAQI
12th Jul 2025551 PMAQI
12th Jul 2025552 PMAQI
12th Jul 2025553 PMAQI
12th Jul 2025544 PMAQI
12th Jul 2025525 PMAQI
12th Jul 2025506 PMAQI
12th Jul 2025487 PMAQI
12th Jul 2025488 PMAQI
12th Jul 2025469 PMAQI
12th Jul 20254410 PMAQI
12th Jul 20254411 PMAQI
13th Jul 20254512 AMAQI
13th Jul 2025411 AMAQI
13th Jul 2025352 AMAQI
13th Jul 2025363 AMAQI
13th Jul 2025324 AMAQI
13th Jul 2025315 AMAQI

28°C24/36°C

13th Jul 2025326 AMAQI
13th Jul 2025327 AMAQI
13th Jul 2025328 AMAQI
13th Jul 2025369 AMAQI
13th Jul 20254310 AMAQI
13th Jul 20254911 AMAQI
13th Jul 20255412 PMAQI
13th Jul 2025531 PMAQI
13th Jul 2025492 PMAQI
13th Jul 2025423 PMAQI
13th Jul 2025414 PMAQI
13th Jul 2025415 PMAQI
13th Jul 2025406 PMAQI
13th Jul 2025397 PMAQI
13th Jul 2025388 PMAQI
13th Jul 2025379 PMAQI
13th Jul 20253610 PMAQI
13th Jul 20253511 PMAQI
14th Jul 20253212 AMAQI
14th Jul 2025241 AMAQI
14th Jul 2025212 AMAQI
14th Jul 2025213 AMAQI
14th Jul 2025244 AMAQI
14th Jul 2025265 AMAQI

27°C21/33°C

14th Jul 2025286 AMAQI
14th Jul 2025297 AMAQI
14th Jul 2025268 AMAQI
14th Jul 2025269 AMAQI
14th Jul 20252810 AMAQI
14th Jul 20253111 AMAQI
14th Jul 20253212 PMAQI
14th Jul 2025341 PMAQI
14th Jul 2025332 PMAQI
14th Jul 2025323 PMAQI
14th Jul 2025324 PMAQI
14th Jul 2025325 PMAQI
14th Jul 2025336 PMAQI
14th Jul 2025307 PMAQI
14th Jul 2025308 PMAQI
14th Jul 2025339 PMAQI
14th Jul 20253310 PMAQI
14th Jul 20253311 PMAQI
15th Jul 20253512 AMAQI
15th Jul 2025391 AMAQI
15th Jul 2025392 AMAQI
15th Jul 2025403 AMAQI
15th Jul 2025384 AMAQI
15th Jul 2025375 AMAQI

26°C22/31°C

15th Jul 2025376 AMAQI
15th Jul 2025387 AMAQI
15th Jul 2025368 AMAQI
15th Jul 2025349 AMAQI
15th Jul 20253310 AMAQI
15th Jul 20253511 AMAQI
15th Jul 20253412 PMAQI
15th Jul 2025351 PMAQI
15th Jul 2025352 PMAQI
15th Jul 2025373 PMAQI
15th Jul 2025364 PMAQI
15th Jul 2025365 PMAQI
15th Jul 2025356 PMAQI
15th Jul 2025367 PMAQI
15th Jul 2025378 PMAQI
15th Jul 2025359 PMAQI
15th Jul 20253510 PMAQI
15th Jul 20253511 PMAQI
16th Jul 20253612 AMAQI
16th Jul 2025331 AMAQI
16th Jul 2025322 AMAQI
16th Jul 2025323 AMAQI
16th Jul 2025274 AMAQI
16th Jul 2025265 AMAQI

26°C22/30°C

16th Jul 2025286 AMAQI
16th Jul 2025317 AMAQI
16th Jul 2025298 AMAQI
16th Jul 2025299 AMAQI
16th Jul 20253110 AMAQI
16th Jul 20253311 AMAQI
16th Jul 20253212 PMAQI
16th Jul 2025321 PMAQI
16th Jul 2025322 PMAQI
16th Jul 2025333 PMAQI
16th Jul 2025334 PMAQI
16th Jul 2025345 PMAQI
16th Jul 2025346 PMAQI
16th Jul 2025337 PMAQI
16th Jul 2025328 PMAQI
16th Jul 2025349 PMAQI
16th Jul 20253510 PMAQI
16th Jul 20253411 PMAQI
17th Jul 20253212 AMAQI
17th Jul 2025291 AMAQI
17th Jul 2025262 AMAQI
17th Jul 2025303 AMAQI
17th Jul 2025264 AMAQI
17th Jul 2025305 AMAQI

29°C24/36°C

17th Jul 2025336 AMAQI
17th Jul 2025347 AMAQI
17th Jul 2025378 AMAQI
17th Jul 2025399 AMAQI
17th Jul 20254310 AMAQI
17th Jul 20254511 AMAQI
17th Jul 20254412 PMAQI
17th Jul 2025471 PMAQI
17th Jul 2025442 PMAQI
17th Jul 2025453 PMAQI
17th Jul 2025424 PMAQI
17th Jul 2025355 PMAQI
17th Jul 2025326 PMAQI
17th Jul 2025317 PMAQI
17th Jul 2025318 PMAQI
17th Jul 2025289 PMAQI
17th Jul 20252810 PMAQI
17th Jul 20252911 PMAQI
18th Jul 20252912 AMAQI
18th Jul 2025241 AMAQI
18th Jul 2025242 AMAQI
18th Jul 2025233 AMAQI
18th Jul 2025244 AMAQI
18th Jul 2025245 AMAQI

28°C23/33°C

18th Jul 2025256 AMAQI
18th Jul 2025287 AMAQI
18th Jul 2025258 AMAQI
18th Jul 2025269 AMAQI
18th Jul 20252410 AMAQI
18th Jul 20252511 AMAQI
18th Jul 20252712 PMAQI
18th Jul 2025291 PMAQI
18th Jul 2025302 PMAQI
18th Jul 2025313 PMAQI
18th Jul 2025334 PMAQI
18th Jul 2025345 PMAQI
18th Jul 2025346 PMAQI
18th Jul 2025287 PMAQI
18th Jul 2025288 PMAQI
18th Jul 2025329 PMAQI
18th Jul 20253310 PMAQI
18th Jul 20253211 PMAQI
19th Jul 20253112 AMAQI
19th Jul 2025281 AMAQI
19th Jul 2025302 AMAQI
19th Jul 2025313 AMAQI
19th Jul 2025304 AMAQI
19th Jul 2025335 AMAQI

27°C23/34°C

19th Jul 2025356 AMAQI
19th Jul 2025357 AMAQI
19th Jul 2025388 AMAQI
19th Jul 2025369 AMAQI
19th Jul 20253010 AMAQI
19th Jul 20253011 AMAQI
19th Jul 20253212 PMAQI
19th Jul 2025321 PMAQI
19th Jul 2025332 PMAQI
19th Jul 2025333 PMAQI
19th Jul 2025314 PMAQI
19th Jul 2025285 PMAQI
19th Jul 2025286 PMAQI
19th Jul 2025317 PMAQI
19th Jul 2025348 PMAQI
19th Jul 2025299 PMAQI
19th Jul 20253010 PMAQI
19th Jul 20253111 PMAQI
20th Jul 20252912 AMAQI
20th Jul 2025201 AMAQI
20th Jul 2025212 AMAQI
20th Jul 2025223 AMAQI
20th Jul 2025234 AMAQI
20th Jul 2025245 AMAQI

25°C22/29°C

20th Jul 2025286 AMAQI
20th Jul 2025287 AMAQI
20th Jul 2025328 AMAQI
20th Jul 2025359 AMAQI
20th Jul 20253910 AMAQI
20th Jul 20254311 AMAQI
20th Jul 20254612 PMAQI
20th Jul 2025501 PMAQI
20th Jul 2025492 PMAQI
20th Jul 2025463 PMAQI
20th Jul 2025474 PMAQI
20th Jul 2025485 PMAQI
20th Jul 2025466 PMAQI
20th Jul 2025387 PMAQI
20th Jul 2025398 PMAQI
20th Jul 2025449 PMAQI
20th Jul 20254610 PMAQI
20th Jul 20254611 PMAQI
21st Jul 20254312 AMAQI
21st Jul 2025361 AMAQI
21st Jul 2025272 AMAQI
21st Jul 2025243 AMAQI
21st Jul 2025234 AMAQI
21st Jul 2025245 AMAQI

29°C23/34°C

21st Jul 2025266 AMAQI
21st Jul 2025277 AMAQI
21st Jul 2025288 AMAQI
21st Jul 2025299 AMAQI
21st Jul 20252810 AMAQI
21st Jul 20252711 AMAQI
21st Jul 20252512 PMAQI
21st Jul 2025261 PMAQI
21st Jul 2025292 PMAQI
21st Jul 2025313 PMAQI
21st Jul 2025344 PMAQI
21st Jul 2025375 PMAQI
21st Jul 2025376 PMAQI
21st Jul 2025337 PMAQI
21st Jul 2025328 PMAQI
21st Jul 2025389 PMAQI
21st Jul 20253410 PMAQI
21st Jul 20253311 PMAQI
22nd Jul 20253312 AMAQI
22nd Jul 2025291 AMAQI
22nd Jul 2025382 AMAQI
22nd Jul 2025463 AMAQI
22nd Jul 2025504 AMAQI
22nd Jul 2025545 AMAQI

27°C24/31°C

22nd Jul 2025566 AMAQI
22nd Jul 2025567 AMAQI
22nd Jul 2025588 AMAQI
22nd Jul 2025599 AMAQI
22nd Jul 20255810 AMAQI
22nd Jul 20255711 AMAQI
22nd Jul 20255612 PMAQI
22nd Jul 2025551 PMAQI
22nd Jul 2025552 PMAQI
22nd Jul 2025543 PMAQI
22nd Jul 2025544 PMAQI
22nd Jul 2025545 PMAQI
22nd Jul 2025536 PMAQI
22nd Jul 2025537 PMAQI
22nd Jul 2025528 PMAQI
22nd Jul 2025539 PMAQI
22nd Jul 20255410 PMAQI
22nd Jul 20255511 PMAQI
23rd Jul 20255712 AMAQI
23rd Jul 2025611 AMAQI
23rd Jul 2025612 AMAQI
23rd Jul 2025623 AMAQI
23rd Jul 2025634 AMAQI
23rd Jul 2025635 AMAQI

28°C22/34°C

23rd Jul 2025646 AMAQI
23rd Jul 2025637 AMAQI
23rd Jul 2025648 AMAQI
23rd Jul 2025659 AMAQI
23rd Jul 20256310 AMAQI
23rd Jul 20256311 AMAQI
23rd Jul 20256312 PMAQI
23rd Jul 2025611 PMAQI
23rd Jul 2025602 PMAQI
23rd Jul 2025613 PMAQI
23rd Jul 2025614 PMAQI
23rd Jul 2025605 PMAQI
23rd Jul 2025606 PMAQI
23rd Jul 2025607 PMAQI
23rd Jul 2025618 PMAQI
23rd Jul 2025599 PMAQI
23rd Jul 20255810 PMAQI
23rd Jul 20255911 PMAQI
24th Jul 20255712 AMAQI
24th Jul 2025501 AMAQI
24th Jul 2025492 AMAQI
24th Jul 2025493 AMAQI
24th Jul 2025474 AMAQI
24th Jul 2025495 AMAQI

28°C21/36°C

24th Jul 2025516 AMAQI
24th Jul 2025527 AMAQI
24th Jul 2025538 AMAQI
24th Jul 2025539 AMAQI
24th Jul 20255110 AMAQI
24th Jul 20255011 AMAQI
24th Jul 20254812 PMAQI
24th Jul 2025481 PMAQI
24th Jul 2025502 PMAQI
24th Jul 2025523 PMAQI
24th Jul 2025524 PMAQI
24th Jul 2025525 PMAQI
24th Jul 2025526 PMAQI
24th Jul 2025537 PMAQI
24th Jul 2025538 PMAQI
24th Jul 2025519 PMAQI
24th Jul 20255210 PMAQI
24th Jul 20255111 PMAQI
25th Jul 20255112 AMAQI
25th Jul 2025501 AMAQI
25th Jul 2025502 AMAQI
25th Jul 2025523 AMAQI
25th Jul 2025554 AMAQI
25th Jul 2025545 AMAQI

30°C24/36°C

25th Jul 2025546 AMAQI
25th Jul 2025547 AMAQI
25th Jul 2025558 AMAQI
25th Jul 2025569 AMAQI
25th Jul 20255510 AMAQI
25th Jul 20255411 AMAQI
25th Jul 20255312 PMAQI
25th Jul 2025521 PMAQI
25th Jul 2025532 PMAQI
25th Jul 2025533 PMAQI
25th Jul 2025534 PMAQI
25th Jul 2025535 PMAQI
25th Jul 2025526 PMAQI
25th Jul 2025537 PMAQI
25th Jul 2025548 PMAQI
25th Jul 2025539 PMAQI
25th Jul 20255210 PMAQI
25th Jul 20255211 PMAQI
26th Jul 20255212 AMAQI
26th Jul 2025431 AMAQI
26th Jul 2025422 AMAQI
26th Jul 2025423 AMAQI
26th Jul 2025434 AMAQI
26th Jul 2025435 AMAQI

30°C24/36°C

26th Jul 2025456 AMAQI
26th Jul 2025457 AMAQI
26th Jul 2025438 AMAQI
26th Jul 2025399 AMAQI
26th Jul 20253810 AMAQI
26th Jul 20253511 AMAQI
26th Jul 20253512 PMAQI
26th Jul 2025341 PMAQI
26th Jul 2025342 PMAQI
26th Jul 2025383 PMAQI
26th Jul 2025374 PMAQI
26th Jul 2025365 PMAQI
26th Jul 2025366 PMAQI
26th Jul 2025397 PMAQI
26th Jul 2025418 PMAQI
26th Jul 2025369 PMAQI
26th Jul 20253610 PMAQI
26th Jul 20253611 PMAQI
27th Jul 20253512 AMAQI
27th Jul 2025291 AMAQI
27th Jul 2025282 AMAQI
27th Jul 2025283 AMAQI
27th Jul 2025314 AMAQI
27th Jul 2025325 AMAQI

29°C24/34°C

27th Jul 2025316 AMAQI
27th Jul 2025307 AMAQI
27th Jul 2025288 AMAQI
27th Jul 2025279 AMAQI
27th Jul 20252710 AMAQI
27th Jul 20252711 AMAQI
27th Jul 20252812 PMAQI
27th Jul 2025281 PMAQI
27th Jul 2025292 PMAQI
27th Jul 2025293 PMAQI
27th Jul 2025294 PMAQI
27th Jul 2025295 PMAQI
27th Jul 2025306 PMAQI
27th Jul 2025297 PMAQI
27th Jul 2025298 PMAQI
27th Jul 2025289 PMAQI
27th Jul 20252810 PMAQI
27th Jul 20252711 PMAQI
28th Jul 20252612 AMAQI
28th Jul 2025201 AMAQI
28th Jul 2025242 AMAQI
28th Jul 2025253 AMAQI
28th Jul 2025264 AMAQI
28th Jul 2025255 AMAQI

30°C24/37°C

28th Jul 2025266 AMAQI
28th Jul 2025307 AMAQI
28th Jul 2025338 AMAQI
28th Jul 2025349 AMAQI
28th Jul 20253110 AMAQI
28th Jul 20253311 AMAQI
28th Jul 20253212 PMAQI
28th Jul 2025331 PMAQI
28th Jul 2025332 PMAQI
28th Jul 2025353 PMAQI
28th Jul 2025344 PMAQI
28th Jul 2025345 PMAQI
28th Jul 2025336 PMAQI
28th Jul 2025317 PMAQI
28th Jul 2025318 PMAQI
28th Jul 2025309 PMAQI
28th Jul 20253010 PMAQI
28th Jul 20252911 PMAQI
29th Jul 20252812 AMAQI
29th Jul 2025241 AMAQI
29th Jul 2025262 AMAQI
29th Jul 2025263 AMAQI
29th Jul 2025284 AMAQI
29th Jul 2025265 AMAQI

29°C23/34°C

29th Jul 2025286 AMAQI
29th Jul 2025297 AMAQI
29th Jul 2025298 AMAQI
29th Jul 2025309 AMAQI
29th Jul 20253010 AMAQI
29th Jul 20253211 AMAQI
29th Jul 20253512 PMAQI
29th Jul 2025361 PMAQI
29th Jul 2025382 PMAQI
29th Jul 2025383 PMAQI
29th Jul 2025394 PMAQI
29th Jul 2025385 PMAQI
29th Jul 2025376 PMAQI
29th Jul 2025337 PMAQI
29th Jul 2025318 PMAQI
29th Jul 2025349 PMAQI
29th Jul 20253410 PMAQI
29th Jul 20253611 PMAQI
30th Jul 20253712 AMAQI
30th Jul 2025431 AMAQI
30th Jul 2025462 AMAQI
30th Jul 2025433 AMAQI
30th Jul 2025424 AMAQI
30th Jul 2025425 AMAQI

28°C21/36°C

30th Jul 2025426 AMAQI
30th Jul 2025447 AMAQI
30th Jul 2025458 AMAQI
30th Jul 2025459 AMAQI
30th Jul 20254510 AMAQI
30th Jul 20254411 AMAQI
30th Jul 20254312 PMAQI
30th Jul 2025441 PMAQI
30th Jul 2025442 PMAQI
30th Jul 2025443 PMAQI
30th Jul 2025444 PMAQI
30th Jul 2025445 PMAQI
30th Jul 2025446 PMAQI
30th Jul 2025447 PMAQI
30th Jul 2025448 PMAQI
30th Jul 2025469 PMAQI
30th Jul 20254910 PMAQI
30th Jul 20255311 PMAQI
31st Jul 20255212 AMAQI
31st Jul 2025561 AMAQI
31st Jul 2025572 AMAQI
31st Jul 2025573 AMAQI
31st Jul 2025584 AMAQI
31st Jul 2025605 AMAQI

30°C22/36°C

31st Jul 2025616 AMAQI
31st Jul 2025627 AMAQI
31st Jul 2025628 AMAQI
31st Jul 2025629 AMAQI
31st Jul 20255810 AMAQI
31st Jul 20255611 AMAQI
31st Jul 20255312 PMAQI
31st Jul 2025501 PMAQI
31st Jul 2025442 PMAQI
31st Jul 2025403 PMAQI
31st Jul 2025384 PMAQI
31st Jul 2025335 PMAQI
31st Jul 2025326 PMAQI
31st Jul 2025557 PMAQI
31st Jul 2025468 PMAQI
31st Jul 2025359 PMAQI
31st Jul 20253710 PMAQI
31st Jul 20253311 PMAQI
1st Aug 20253512 AMAQI
1st Aug 2025411 AMAQI
1st Aug 2025492 AMAQI
1st Aug 2025553 AMAQI
1st Aug 2025584 AMAQI
1st Aug 2025615 AMAQI

27°C23/34°C

1st Aug 2025686 AMAQI
1st Aug 2025717 AMAQI
1st Aug 2025778 AMAQI
1st Aug 2025769 AMAQI
1st Aug 20257710 AMAQI
1st Aug 20257611 AMAQI
1st Aug 20257512 PMAQI
1st Aug 2025721 PMAQI
1st Aug 2025672 PMAQI
1st Aug 2025703 PMAQI
1st Aug 2025774 PMAQI
1st Aug 2025815 PMAQI
1st Aug 2025776 PMAQI
1st Aug 2025697 PMAQI
1st Aug 2025758 PMAQI
1st Aug 2025809 PMAQI
1st Aug 20258210 PMAQI
1st Aug 20258211 PMAQI
2nd Aug 20258412 AMAQI
2nd Aug 2025841 AMAQI
2nd Aug 2025822 AMAQI
2nd Aug 2025833 AMAQI
2nd Aug 2025784 AMAQI
2nd Aug 2025785 AMAQI

23°C20/30°C

2nd Aug 2025776 AMAQI
2nd Aug 2025767 AMAQI
2nd Aug 2025738 AMAQI
2nd Aug 2025669 AMAQI
2nd Aug 20256010 AMAQI
2nd Aug 20255811 AMAQI
2nd Aug 20255612 PMAQI
2nd Aug 2025551 PMAQI
2nd Aug 2025532 PMAQI
2nd Aug 2025523 PMAQI
2nd Aug 2025504 PMAQI
2nd Aug 2025495 PMAQI
2nd Aug 2025476 PMAQI
2nd Aug 2025637 PMAQI
2nd Aug 2025588 PMAQI
2nd Aug 2025489 PMAQI
2nd Aug 20254810 PMAQI
2nd Aug 20254811 PMAQI
3rd Aug 20254812 AMAQI
3rd Aug 2025441 AMAQI
3rd Aug 2025452 AMAQI
3rd Aug 2025433 AMAQI
3rd Aug 2025424 AMAQI
3rd Aug 2025425 AMAQI

23°C18/30°C

3rd Aug 2025406 AMAQI
3rd Aug 2025397 AMAQI
3rd Aug 2025388 AMAQI
3rd Aug 2025389 AMAQI
3rd Aug 20253810 AMAQI
3rd Aug 20253811 AMAQI
3rd Aug 20253412 PMAQI
3rd Aug 2025331 PMAQI
3rd Aug 2025302 PMAQI
3rd Aug 2025293 PMAQI
3rd Aug 2025264 PMAQI
3rd Aug 2025245 PMAQI
3rd Aug 2025256 PMAQI
3rd Aug 2025397 PMAQI
3rd Aug 2025308 PMAQI
3rd Aug 2025289 PMAQI
3rd Aug 20252710 PMAQI
3rd Aug 20252411 PMAQI
4th Aug 20252612 AMAQI
4th Aug 2025231 AMAQI
4th Aug 2025222 AMAQI
4th Aug 2025233 AMAQI
4th Aug 2025234 AMAQI
4th Aug 2025235 AMAQI

23°C18/29°C

4th Aug 2025246 AMAQI
4th Aug 2025267 AMAQI
4th Aug 2025288 AMAQI
4th Aug 2025309 AMAQI
4th Aug 20253010 AMAQI
4th Aug 20253011 AMAQI
4th Aug 20253112 PMAQI
4th Aug 2025341 PMAQI
4th Aug 2025362 PMAQI
4th Aug 2025363 PMAQI
4th Aug 2025354 PMAQI
4th Aug 2025375 PMAQI
4th Aug 2025346 PMAQI
4th Aug 2025307 PMAQI
4th Aug 2025328 PMAQI
4th Aug 2025379 PMAQI
4th Aug 20253610 PMAQI
4th Aug 20254411 PMAQI
5th Aug 20254112 AMAQI
5th Aug 2025401 AMAQI
5th Aug 2025402 AMAQI
5th Aug 2025383 AMAQI
5th Aug 2025384 AMAQI
5th Aug 2025385 AMAQI

24°C19/28°C

5th Aug 2025416 AMAQI
5th Aug 2025417 AMAQI
5th Aug 2025418 AMAQI
5th Aug 2025409 AMAQI
5th Aug 20254010 AMAQI
5th Aug 20254011 AMAQI
5th Aug 20253812 PMAQI
5th Aug 2025371 PMAQI
5th Aug 2025382 PMAQI
5th Aug 2025373 PMAQI
5th Aug 2025364 PMAQI
5th Aug 2025345 PMAQI
5th Aug 2025346 PMAQI
5th Aug 2025367 PMAQI
5th Aug 2025368 PMAQI
5th Aug 2025349 PMAQI
5th Aug 20253410 PMAQI
5th Aug 20253411 PMAQI
6th Aug 20253512 AMAQI
6th Aug 2025341 AMAQI
6th Aug 2025342 AMAQI
6th Aug 2025363 AMAQI
6th Aug 2025364 AMAQI
6th Aug 2025375 AMAQI

25°C20/29°C

6th Aug 2025356 AMAQI
6th Aug 2025357 AMAQI
6th Aug 2025368 AMAQI
6th Aug 2025369 AMAQI
6th Aug 20253810 AMAQI
6th Aug 20253711 AMAQI
6th Aug 20253812 PMAQI
6th Aug 2025401 PMAQI
6th Aug 2025402 PMAQI
6th Aug 2025443 PMAQI
6th Aug 2025454 PMAQI
6th Aug 2025415 PMAQI
6th Aug 2025396 PMAQI
6th Aug 2025357 PMAQI
6th Aug 2025388 PMAQI
6th Aug 2025409 PMAQI
6th Aug 20254110 PMAQI
6th Aug 20254111 PMAQI
7th Aug 20254212 AMAQI
7th Aug 2025431 AMAQI
7th Aug 2025472 AMAQI
7th Aug 2025463 AMAQI
7th Aug 2025464 AMAQI
7th Aug 2025495 AMAQI

26°C19/34°C

7th Aug 2025506 AMAQI
7th Aug 2025517 AMAQI
7th Aug 2025518 AMAQI
7th Aug 2025539 AMAQI
7th Aug 20255110 AMAQI
7th Aug 20254711 AMAQI
7th Aug 20254612 PMAQI
7th Aug 2025471 PMAQI
7th Aug 2025492 PMAQI
7th Aug 2025493 PMAQI
7th Aug 2025494 PMAQI
7th Aug 2025475 PMAQI
7th Aug 2025476 PMAQI
7th Aug 2025497 PMAQI
7th Aug 2025498 PMAQI
7th Aug 2025489 PMAQI
7th Aug 20254810 PMAQI
7th Aug 20255011 PMAQI
8th Aug 20254812 AMAQI
8th Aug 2025501 AMAQI

27°C20/34°C

6 AM
1 PM
9 PM
1 AM
5 AM

--°C/°C

Day time
Avg. Highest Time
6 AM - 9 PM

43AQI

16 hours / Day
480 hours / Month
Avg. Lowest Time
6 AM - 9 PM

43AQI

16 hours / Day
480 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 9 PM (Avg. 43), while the lowest AQI was between 6 AM to 9 PM (Avg. 43).
Night time
Avg. Highest Time
12 AM - 11 PM

41AQI

8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 11 PM

41AQI

8 hours / Day
240 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 41), while the lowest AQI was between 12 AM to 11 PM (Avg. 41).

2025 Days Vs Air Quality

Louisville, Kentucky, United States

2025

85%

187

14%

31

0.4%

1

Total number of days with different AQI categories in last 220 days in 2025 (145 days remaining)

Good
187 Days
Moderate
31 Days
Poor
1 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 85%

Health Risk Level:

Low

In 2025, 85% of 220 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

Louisville, Kentucky, United States

AQI levels in 2025

AQI
PM2.5
PM10
CO
SO2
NO2
O3
Sun.Mon.Tue.Wed.Thu.Fri.Sat.

Jan.

Feb.

Mar.

Apr.

May

Jun.

Jul.

Aug.

Sep.

Oct.

Nov.

Dec.

1st January 2025
25AQI
2nd January 2025
33AQI
3rd January 2025
22AQI
4th January 2025
21AQI
5th January 2025
22AQI
6th January 2025
24AQI
7th January 2025
25AQI
8th January 2025
42AQI
9th January 2025
74AQI
10th January 2025
68AQI
11th January 2025
52AQI
12th January 2025
47AQI
13th January 2025
27AQI
14th January 2025
30AQI
15th January 2025
46AQI
16th January 2025
45AQI
17th January 2025
49AQI
18th January 2025
29AQI
19th January 2025
19AQI
20th January 2025
20AQI
21st January 2025
27AQI
22nd January 2025
38AQI
23rd January 2025
34AQI
24th January 2025
42AQI
25th January 2025
38AQI
26th January 2025
38AQI
27th January 2025
24AQI
28th January 2025
28AQI
29th January 2025
27AQI
30th January 2025
45AQI
31st January 2025
24AQI
1st February 2025
22AQI
2nd February 2025
26AQI
3rd February 2025
31AQI
4th February 2025
41AQI
5th February 2025
36AQI
6th February 2025
28AQI
7th February 2025
26AQI
8th February 2025
25AQI
9th February 2025
35AQI
10th February 2025
41AQI
11th February 2025
28AQI
12th February 2025
27AQI
13th February 2025
40AQI
14th February 2025
34AQI
15th February 2025
32AQI
16th February 2025
25AQI
17th February 2025
21AQI
18th February 2025
24AQI
19th February 2025
28AQI
20th February 2025
25AQI
21st February 2025
44AQI
22nd February 2025
47AQI
23rd February 2025
48AQI
24th February 2025
41AQI
25th February 2025
32AQI
26th February 2025
37AQI
27th February 2025
31AQI
28th February 2025
25AQI
1st March 2025
27AQI
2nd March 2025
24AQI
3rd March 2025
33AQI
4th March 2025
36AQI
5th March 2025
27AQI
6th March 2025
26AQI
7th March 2025
33AQI
8th March 2025
35AQI
9th March 2025
44AQI
10th March 2025
49AQI
11th March 2025
47AQI
12th March 2025
49AQI
13th March 2025
62AQI
14th March 2025
50AQI
15th March 2025
33AQI
16th March 2025
25AQI
17th March 2025
22AQI
18th March 2025
23AQI
19th March 2025
35AQI
20th March 2025
22AQI
21st March 2025
25AQI
22nd March 2025
21AQI
23rd March 2025
34AQI
24th March 2025
22AQI
25th March 2025
18AQI
26th March 2025
27AQI
27th March 2025
46AQI
28th March 2025
51AQI
29th March 2025
59AQI
30th March 2025
47AQI
31st March 2025
19AQI
1st April 2025
28AQI
2nd April 2025
28AQI
3rd April 2025
26AQI
4th April 2025
18AQI
5th April 2025
16AQI
6th April 2025
13AQI
7th April 2025
22AQI
8th April 2025
15AQI
9th April 2025
25AQI
10th April 2025
32AQI
11th April 2025
42AQI
12th April 2025
44AQI
13th April 2025
42AQI
14th April 2025
44AQI
15th April 2025
21AQI
16th April 2025
28AQI
17th April 2025
40AQI
18th April 2025
53AQI
19th April 2025
51AQI
20th April 2025
33AQI
21st April 2025
37AQI
22nd April 2025
26AQI
23rd April 2025
32AQI
24th April 2025
35AQI
25th April 2025
33AQI
26th April 2025
25AQI
27th April 2025
21AQI
28th April 2025
29AQI
29th April 2025
46AQI
30th April 2025
32AQI
1st May 2025
44AQI
2nd May 2025
32AQI
3rd May 2025
21AQI
4th May 2025
18AQI
5th May 2025
20AQI
6th May 2025
23AQI
7th May 2025
36AQI
8th May 2025
33AQI
9th May 2025
29AQI
10th May 2025
26AQI
11th May 2025
34AQI
12th May 2025
25AQI
13th May 2025
22AQI
14th May 2025
30AQI
15th May 2025
48AQI
16th May 2025
50AQI
17th May 2025
29AQI
18th May 2025
23AQI
19th May 2025
29AQI
20th May 2025
28AQI
21st May 2025
19AQI
22nd May 2025
16AQI
23rd May 2025
21AQI
24th May 2025
36AQI
25th May 2025
25AQI
26th May 2025
21AQI
27th May 2025
20AQI
28th May 2025
32AQI
29th May 2025
40AQI
30th May 2025
26AQI
31st May 2025
47AQI
1st June 2025
31AQI
2nd June 2025
45AQI
3rd June 2025
57AQI
4th June 2025
73AQI
5th June 2025
57AQI
6th June 2025
43AQI
7th June 2025
29AQI
8th June 2025
46AQI
9th June 2025
53AQI
10th June 2025
54AQI
11th June 2025
66AQI
12th June 2025
71AQI
13th June 2025
61AQI
14th June 2025
27AQI
15th June 2025
29AQI
16th June 2025
33AQI
17th June 2025
28AQI
18th June 2025
35AQI
19th June 2025
28AQI
20th June 2025
43AQI
21st June 2025
48AQI
22nd June 2025
50AQI
23rd June 2025
56AQI
24th June 2025
53AQI
25th June 2025
54AQI
26th June 2025
56AQI
27th June 2025
49AQI
28th June 2025
37AQI
29th June 2025
39AQI
30th June 2025
39AQI
1st July 2025
35AQI
2nd July 2025
38AQI
3rd July 2025
51AQI
4th July 2025
59AQI
5th July 2025
112AQI
6th July 2025
64AQI
7th July 2025
55AQI
8th July 2025
44AQI
9th July 2025
55AQI
10th July 2025
46AQI
11th July 2025
48AQI
12th July 2025
49AQI
13th July 2025
39AQI
14th July 2025
29AQI
15th July 2025
36AQI
16th July 2025
32AQI
17th July 2025
34AQI
18th July 2025
28AQI
19th July 2025
31AQI
20th July 2025
36AQI
21st July 2025
31AQI
22nd July 2025
51AQI
23rd July 2025
61AQI
24th July 2025
51AQI
25th July 2025
53AQI
26th July 2025
40AQI
27th July 2025
29AQI
28th July 2025
29AQI
29th July 2025
31AQI
30th July 2025
44AQI
31st July 2025
50AQI
1st August 2025
68AQI
2nd August 2025
64AQI
3rd August 2025
36AQI
4th August 2025
30AQI
5th August 2025
38AQI
6th August 2025
38AQI
7th August 2025
47AQI

35AQI

32AQI

35AQI

31AQI

29AQI

46AQI

45AQI

46AQI

No. of days

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

202537AQI

28
3
28
28
3
28
2
31
18
12
21
9
1
5
2
187
31
1

Highest AQI recorded in

June

46AQI

Lowest AQI recorded in

May

29AQI

202433AQI

28
3
23
6
31
28
1
31
28
2
27
4
20
11
30
24
7
28
2
31
329
36

Highest AQI recorded in

August

45AQI

Lowest AQI recorded in

September

26AQI

202345AQI

21
10
22
6
22
9
21
9
27
4
7
20
2
1
17
12
2
17
14
28
2
28
3
18
11
27
4
255
104
4
1

Highest AQI recorded in

June

72AQI

Lowest AQI recorded in

October

35AQI

202240AQI

19
12
15
7
26
5
14
3
30
1
25
5
20
2
1
26
3
25
6
15
15
22
9
238
68

Highest AQI recorded in

November

49AQI

Lowest AQI recorded in

September

31AQI

202143AQI

20
10
14
14
26
5
23
7
23
8
26
2
15
16
20
11
24
5
28
3
22
8
24
7
265
96

Highest AQI recorded in

July

54AQI

Lowest AQI recorded in

October

37AQI

202039AQI

9
4
17
4
18
28
2
29
2
27
4
29
1
25
6
20
10
16
15
218
48

Highest AQI recorded in

December

50AQI

Lowest AQI recorded in

May

29AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2023(Avg.)
45AQI
Least Polluted Year Recorded
2024(Avg.)
33AQI

Louisville's annual 2025 AQI (37) shows an average percentage change of -7.7% (improved AQI) compared to previous years: 2020 (39), 2021 (43), 2022 (40), 2023 (45), 2024 (33).