Country Background

Springfield, Illinois, 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

Springfield, Illinois, United States

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
1st Aug 2025
111AQI
Lowest AQI recorded on
28th Aug 2024
17AQI


Same Day Analysis (3rd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 54 of Moderate air quality, showing improvement over 2024 and 2021 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 4th Aug - 5th Aug 2025

Springfield, Illinois, United States

AQI
Day
Night
.

5 AM4th Aug 2025

8 PM

4 AM5th Aug 2025

Day time
Avg. Highest Time
3PM4th Aug

47AQI

Avg. Lowest Time
6AM4th Aug

39AQI

Night time
Avg. Highest Time
1AM5th Aug

50AQI

Avg. Lowest Time
5AM4th Aug

39AQI

In the last 24 hours,

Springfield's AQI reached its highest point of 50 at 1 AM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 4th Aug and 5th Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Springfield, Illinois, United States

JulAug
06th - 07th07th - 08th08th - 09th09th - 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
Day
Night
6th Jul 2025475 AMAQI
6th Jul 2025476 AMAQI
6th Jul 2025477 AMAQI
6th Jul 2025478 AMAQI
6th Jul 2025479 AMAQI
6th Jul 20254710 AMAQI
6th Jul 20254811 AMAQI
6th Jul 20254912 PMAQI
6th Jul 2025471 PMAQI
6th Jul 2025462 PMAQI
6th Jul 2025483 PMAQI
6th Jul 2025474 PMAQI
6th Jul 2025465 PMAQI
6th Jul 2025446 PMAQI
6th Jul 2025467 PMAQI
6th Jul 2025468 PMAQI
6th Jul 2025429 PMAQI
6th Jul 20254310 PMAQI
6th Jul 20254311 PMAQI
7th Jul 20254212 AMAQI
7th Jul 2025401 AMAQI
7th Jul 2025342 AMAQI
7th Jul 2025353 AMAQI
7th Jul 2025364 AMAQI

27°C23/32°C

7th Jul 2025335 AMAQI
7th Jul 2025346 AMAQI
7th Jul 2025357 AMAQI
7th Jul 2025358 AMAQI
7th Jul 2025379 AMAQI
7th Jul 20253810 AMAQI
7th Jul 20253811 AMAQI
7th Jul 20253912 PMAQI
7th Jul 2025411 PMAQI
7th Jul 2025402 PMAQI
7th Jul 2025413 PMAQI
7th Jul 2025414 PMAQI
7th Jul 2025395 PMAQI
7th Jul 2025396 PMAQI
7th Jul 2025387 PMAQI
7th Jul 2025388 PMAQI
7th Jul 2025389 PMAQI
7th Jul 20253810 PMAQI
7th Jul 20253811 PMAQI
8th Jul 20253812 AMAQI
8th Jul 2025381 AMAQI
8th Jul 2025382 AMAQI
8th Jul 2025383 AMAQI
8th Jul 2025384 AMAQI

26°C22/33°C

8th Jul 2025405 AMAQI
8th Jul 2025426 AMAQI
8th Jul 2025427 AMAQI
8th Jul 2025428 AMAQI
8th Jul 2025429 AMAQI
8th Jul 20254310 AMAQI
8th Jul 20254411 AMAQI
8th Jul 20254412 PMAQI
8th Jul 2025441 PMAQI
8th Jul 2025432 PMAQI
8th Jul 2025453 PMAQI
8th Jul 2025454 PMAQI
8th Jul 2025445 PMAQI
8th Jul 2025426 PMAQI
8th Jul 2025427 PMAQI
8th Jul 2025418 PMAQI
8th Jul 2025389 PMAQI
8th Jul 20253810 PMAQI
8th Jul 20253911 PMAQI
9th Jul 20253812 AMAQI
9th Jul 2025381 AMAQI
9th Jul 2025352 AMAQI
9th Jul 2025303 AMAQI
9th Jul 2025304 AMAQI

25°C18/32°C

9th Jul 2025305 AMAQI
9th Jul 2025316 AMAQI
9th Jul 2025317 AMAQI
9th Jul 2025308 AMAQI
9th Jul 2025309 AMAQI
9th Jul 20253110 AMAQI
9th Jul 20253311 AMAQI
9th Jul 20253312 PMAQI
9th Jul 2025331 PMAQI
9th Jul 2025332 PMAQI
9th Jul 2025333 PMAQI
9th Jul 2025334 PMAQI
9th Jul 2025335 PMAQI
9th Jul 2025326 PMAQI
9th Jul 2025327 PMAQI
9th Jul 2025338 PMAQI
9th Jul 2025329 PMAQI
9th Jul 20253210 PMAQI
9th Jul 20253211 PMAQI
10th Jul 20253212 AMAQI
10th Jul 2025311 AMAQI
10th Jul 2025332 AMAQI
10th Jul 2025323 AMAQI
10th Jul 2025314 AMAQI

25°C18/33°C

10th Jul 2025295 AMAQI
10th Jul 2025286 AMAQI
10th Jul 2025317 AMAQI
10th Jul 2025318 AMAQI
10th Jul 2025329 AMAQI
10th Jul 20253610 AMAQI
10th Jul 20253411 AMAQI
10th Jul 20253412 PMAQI
10th Jul 2025321 PMAQI
10th Jul 2025312 PMAQI
10th Jul 2025323 PMAQI
10th Jul 2025314 PMAQI
10th Jul 2025325 PMAQI
10th Jul 2025316 PMAQI
10th Jul 2025317 PMAQI
10th Jul 2025318 PMAQI
10th Jul 2025329 PMAQI
10th Jul 20253210 PMAQI
10th Jul 20253211 PMAQI
11th Jul 20253312 AMAQI
11th Jul 2025331 AMAQI
11th Jul 2025322 AMAQI
11th Jul 2025323 AMAQI
11th Jul 2025324 AMAQI

27°C19/35°C

11th Jul 2025345 AMAQI
11th Jul 2025326 AMAQI
11th Jul 2025367 AMAQI
11th Jul 2025368 AMAQI
11th Jul 2025389 AMAQI
11th Jul 20253910 AMAQI
11th Jul 20253911 AMAQI
11th Jul 20253912 PMAQI
11th Jul 2025401 PMAQI
11th Jul 2025402 PMAQI
11th Jul 2025403 PMAQI
11th Jul 2025414 PMAQI
11th Jul 2025415 PMAQI
11th Jul 2025416 PMAQI
11th Jul 2025387 PMAQI
11th Jul 2025398 PMAQI
11th Jul 2025419 PMAQI
11th Jul 20254010 PMAQI
11th Jul 20254111 PMAQI
12th Jul 20254012 AMAQI
12th Jul 2025391 AMAQI
12th Jul 2025362 AMAQI
12th Jul 2025363 AMAQI
12th Jul 2025354 AMAQI

28°C21/36°C

12th Jul 2025325 AMAQI
12th Jul 2025346 AMAQI
12th Jul 2025367 AMAQI
12th Jul 2025358 AMAQI
12th Jul 2025369 AMAQI
12th Jul 20253710 AMAQI
12th Jul 20253711 AMAQI
12th Jul 20253712 PMAQI
12th Jul 2025371 PMAQI
12th Jul 2025372 PMAQI
12th Jul 2025373 PMAQI
12th Jul 2025364 PMAQI
12th Jul 2025355 PMAQI
12th Jul 2025346 PMAQI
12th Jul 2025357 PMAQI
12th Jul 2025358 PMAQI
12th Jul 2025329 PMAQI
12th Jul 20253210 PMAQI
12th Jul 20253311 PMAQI
13th Jul 20253312 AMAQI
13th Jul 2025321 AMAQI
13th Jul 2025312 AMAQI
13th Jul 2025293 AMAQI
13th Jul 2025294 AMAQI

25°C20/29°C

13th Jul 2025285 AMAQI
13th Jul 2025296 AMAQI
13th Jul 2025297 AMAQI
13th Jul 2025298 AMAQI
13th Jul 2025329 AMAQI
13th Jul 20253410 AMAQI
13th Jul 20253311 AMAQI
13th Jul 20253412 PMAQI
13th Jul 2025341 PMAQI
13th Jul 2025332 PMAQI
13th Jul 2025333 PMAQI
13th Jul 2025344 PMAQI
13th Jul 2025305 PMAQI
13th Jul 2025316 PMAQI
13th Jul 2025307 PMAQI
13th Jul 2025318 PMAQI
13th Jul 2025299 PMAQI
13th Jul 20253110 PMAQI
13th Jul 20253211 PMAQI
14th Jul 20253112 AMAQI
14th Jul 2025291 AMAQI
14th Jul 2025292 AMAQI
14th Jul 2025303 AMAQI
14th Jul 2025294 AMAQI

24°C22/31°C

14th Jul 2025295 AMAQI
14th Jul 2025306 AMAQI
14th Jul 2025307 AMAQI
14th Jul 2025308 AMAQI
14th Jul 2025309 AMAQI
14th Jul 20253310 AMAQI
14th Jul 20253611 AMAQI
14th Jul 20253612 PMAQI
14th Jul 2025351 PMAQI
14th Jul 2025362 PMAQI
14th Jul 2025343 PMAQI
14th Jul 2025334 PMAQI
14th Jul 2025345 PMAQI
14th Jul 2025336 PMAQI
14th Jul 2025327 PMAQI
14th Jul 2025328 PMAQI
14th Jul 2025329 PMAQI
14th Jul 20253210 PMAQI
14th Jul 20253211 PMAQI
15th Jul 20253312 AMAQI
15th Jul 2025341 AMAQI
15th Jul 2025332 AMAQI
15th Jul 2025333 AMAQI
15th Jul 2025334 AMAQI

26°C22/32°C

15th Jul 2025335 AMAQI
15th Jul 2025346 AMAQI
15th Jul 2025347 AMAQI
15th Jul 2025358 AMAQI
15th Jul 2025359 AMAQI
15th Jul 20253510 AMAQI
15th Jul 20253711 AMAQI
15th Jul 20253512 PMAQI
15th Jul 2025361 PMAQI
15th Jul 2025372 PMAQI
15th Jul 2025363 PMAQI
15th Jul 2025374 PMAQI
15th Jul 2025365 PMAQI
15th Jul 2025376 PMAQI
15th Jul 2025367 PMAQI
15th Jul 2025378 PMAQI
15th Jul 2025389 PMAQI
15th Jul 20253710 PMAQI
15th Jul 20253711 PMAQI
16th Jul 20253612 AMAQI
16th Jul 2025361 AMAQI
16th Jul 2025382 AMAQI
16th Jul 2025373 AMAQI
16th Jul 2025354 AMAQI

26°C21/31°C

16th Jul 2025365 AMAQI
16th Jul 2025386 AMAQI
16th Jul 2025407 AMAQI
16th Jul 2025408 AMAQI
16th Jul 2025379 AMAQI
16th Jul 20253810 AMAQI
16th Jul 20253811 AMAQI
16th Jul 20253912 PMAQI
16th Jul 2025431 PMAQI
16th Jul 2025432 PMAQI
16th Jul 2025403 PMAQI
16th Jul 2025424 PMAQI
16th Jul 2025405 PMAQI
16th Jul 2025406 PMAQI
16th Jul 2025407 PMAQI
16th Jul 2025408 PMAQI
16th Jul 2025389 PMAQI
16th Jul 20253710 PMAQI
16th Jul 20253511 PMAQI
17th Jul 20253212 AMAQI
17th Jul 2025311 AMAQI
17th Jul 2025292 AMAQI
17th Jul 2025293 AMAQI
17th Jul 2025304 AMAQI

26°C20/36°C

17th Jul 2025335 AMAQI
17th Jul 2025336 AMAQI
17th Jul 2025337 AMAQI
17th Jul 2025358 AMAQI
17th Jul 2025339 AMAQI
17th Jul 20253510 AMAQI
17th Jul 20253411 AMAQI
17th Jul 20253512 PMAQI
17th Jul 2025321 PMAQI
17th Jul 2025302 PMAQI
17th Jul 2025323 PMAQI
17th Jul 2025314 PMAQI
17th Jul 2025325 PMAQI
17th Jul 2025316 PMAQI
17th Jul 2025327 PMAQI
17th Jul 2025318 PMAQI
17th Jul 2025309 PMAQI
17th Jul 20253010 PMAQI
17th Jul 20253111 PMAQI
18th Jul 20253212 AMAQI
18th Jul 2025311 AMAQI
18th Jul 2025282 AMAQI
18th Jul 2025273 AMAQI
18th Jul 2025274 AMAQI

25°C23/30°C

18th Jul 2025255 AMAQI
18th Jul 2025256 AMAQI
18th Jul 2025267 AMAQI
18th Jul 2025278 AMAQI
18th Jul 2025279 AMAQI
18th Jul 20252810 AMAQI
18th Jul 20253011 AMAQI
18th Jul 20253112 PMAQI
18th Jul 2025331 PMAQI
18th Jul 2025332 PMAQI
18th Jul 2025333 PMAQI
18th Jul 2025344 PMAQI
18th Jul 2025335 PMAQI
18th Jul 2025336 PMAQI
18th Jul 2025327 PMAQI
18th Jul 2025328 PMAQI
18th Jul 2025339 PMAQI
18th Jul 20253210 PMAQI
18th Jul 20253311 PMAQI
19th Jul 20253312 AMAQI
19th Jul 2025341 AMAQI
19th Jul 2025352 AMAQI
19th Jul 2025373 AMAQI
19th Jul 2025344 AMAQI

24°C20/30°C

19th Jul 2025365 AMAQI
19th Jul 2025376 AMAQI
19th Jul 2025367 AMAQI
19th Jul 2025368 AMAQI
19th Jul 2025359 AMAQI
19th Jul 20253510 AMAQI
19th Jul 20253411 AMAQI
19th Jul 20253312 PMAQI
19th Jul 2025331 PMAQI
19th Jul 2025332 PMAQI
19th Jul 2025333 PMAQI
19th Jul 2025344 PMAQI
19th Jul 2025335 PMAQI
19th Jul 2025336 PMAQI
19th Jul 2025337 PMAQI
19th Jul 2025348 PMAQI
19th Jul 2025349 PMAQI
19th Jul 20253410 PMAQI
19th Jul 20253411 PMAQI
20th Jul 20253412 AMAQI
20th Jul 2025331 AMAQI
20th Jul 2025312 AMAQI
20th Jul 2025323 AMAQI
20th Jul 2025324 AMAQI

26°C22/31°C

20th Jul 2025325 AMAQI
20th Jul 2025316 AMAQI
20th Jul 2025347 AMAQI
20th Jul 2025348 AMAQI
20th Jul 2025369 AMAQI
20th Jul 20253410 AMAQI
20th Jul 20253411 AMAQI
20th Jul 20253312 PMAQI
20th Jul 2025341 PMAQI
20th Jul 2025342 PMAQI
20th Jul 2025353 PMAQI
20th Jul 2025354 PMAQI
20th Jul 2025355 PMAQI
20th Jul 2025346 PMAQI
20th Jul 2025347 PMAQI
20th Jul 2025338 PMAQI
20th Jul 2025339 PMAQI
20th Jul 20253310 PMAQI
20th Jul 20253311 PMAQI
21st Jul 20253312 AMAQI
21st Jul 2025321 AMAQI
21st Jul 2025292 AMAQI
21st Jul 2025293 AMAQI
21st Jul 2025284 AMAQI

27°C22/33°C

21st Jul 2025275 AMAQI
21st Jul 2025266 AMAQI
21st Jul 2025287 AMAQI
21st Jul 2025298 AMAQI
21st Jul 2025339 AMAQI
21st Jul 20253510 AMAQI
21st Jul 20253611 AMAQI
21st Jul 20253712 PMAQI
21st Jul 2025381 PMAQI
21st Jul 2025372 PMAQI
21st Jul 2025393 PMAQI
21st Jul 2025394 PMAQI
21st Jul 2025395 PMAQI
21st Jul 2025396 PMAQI
21st Jul 2025347 PMAQI
21st Jul 2025348 PMAQI
21st Jul 2025379 PMAQI
21st Jul 20253710 PMAQI
21st Jul 20253811 PMAQI
22nd Jul 20253712 AMAQI
22nd Jul 2025381 AMAQI
22nd Jul 2025382 AMAQI
22nd Jul 2025383 AMAQI
22nd Jul 2025374 AMAQI

25°C22/29°C

22nd Jul 2025375 AMAQI
22nd Jul 2025376 AMAQI
22nd Jul 2025397 AMAQI
22nd Jul 2025408 AMAQI
22nd Jul 2025409 AMAQI
22nd Jul 20254110 AMAQI
22nd Jul 20254111 AMAQI
22nd Jul 20254212 PMAQI
22nd Jul 2025431 PMAQI
22nd Jul 2025432 PMAQI
22nd Jul 2025423 PMAQI
22nd Jul 2025434 PMAQI
22nd Jul 2025435 PMAQI
22nd Jul 2025436 PMAQI
22nd Jul 2025417 PMAQI
22nd Jul 2025418 PMAQI
22nd Jul 2025439 PMAQI
22nd Jul 20254310 PMAQI
22nd Jul 20254311 PMAQI
23rd Jul 20254312 AMAQI
23rd Jul 2025421 AMAQI
23rd Jul 2025422 AMAQI
23rd Jul 2025413 AMAQI
23rd Jul 2025414 AMAQI

28°C22/35°C

23rd Jul 2025405 AMAQI
23rd Jul 2025426 AMAQI
23rd Jul 2025437 AMAQI
23rd Jul 2025438 AMAQI
23rd Jul 2025469 AMAQI
23rd Jul 20254610 AMAQI
23rd Jul 20254711 AMAQI
23rd Jul 20254712 PMAQI
23rd Jul 2025471 PMAQI
23rd Jul 2025472 PMAQI
23rd Jul 2025473 PMAQI
23rd Jul 2025474 PMAQI
23rd Jul 2025475 PMAQI
23rd Jul 2025476 PMAQI
23rd Jul 2025467 PMAQI
23rd Jul 2025458 PMAQI
23rd Jul 2025459 PMAQI
23rd Jul 20254410 PMAQI
23rd Jul 20254511 PMAQI
24th Jul 20254512 AMAQI
24th Jul 2025431 AMAQI
24th Jul 2025402 AMAQI
24th Jul 2025393 AMAQI
24th Jul 2025404 AMAQI

29°C24/35°C

24th Jul 2025385 AMAQI
24th Jul 2025386 AMAQI
24th Jul 2025407 AMAQI
24th Jul 2025418 AMAQI
24th Jul 2025419 AMAQI
24th Jul 20254210 AMAQI
24th Jul 20254111 AMAQI
24th Jul 20254112 PMAQI
24th Jul 2025421 PMAQI
24th Jul 2025422 PMAQI
24th Jul 2025423 PMAQI
24th Jul 2025434 PMAQI
24th Jul 2025435 PMAQI
24th Jul 2025446 PMAQI
24th Jul 2025427 PMAQI
24th Jul 2025438 PMAQI
24th Jul 2025439 PMAQI
24th Jul 20254210 PMAQI
24th Jul 20254211 PMAQI
25th Jul 20254112 AMAQI
25th Jul 2025411 AMAQI
25th Jul 2025362 AMAQI
25th Jul 2025353 AMAQI
25th Jul 2025334 AMAQI

29°C23/35°C

25th Jul 2025315 AMAQI
25th Jul 2025326 AMAQI
25th Jul 2025357 AMAQI
25th Jul 2025358 AMAQI
25th Jul 2025369 AMAQI
25th Jul 20253710 AMAQI
25th Jul 20253611 AMAQI
25th Jul 20253812 PMAQI
25th Jul 2025381 PMAQI
25th Jul 2025392 PMAQI
25th Jul 2025403 PMAQI
25th Jul 2025404 PMAQI
25th Jul 2025385 PMAQI
25th Jul 2025396 PMAQI
25th Jul 2025387 PMAQI
25th Jul 2025388 PMAQI
25th Jul 2025359 PMAQI
25th Jul 20253510 PMAQI
25th Jul 20253511 PMAQI
26th Jul 20253512 AMAQI
26th Jul 2025301 AMAQI
26th Jul 2025302 AMAQI
26th Jul 2025293 AMAQI
26th Jul 2025314 AMAQI

28°C22/34°C

26th Jul 2025295 AMAQI
26th Jul 2025306 AMAQI
26th Jul 2025317 AMAQI
26th Jul 2025338 AMAQI
26th Jul 2025369 AMAQI
26th Jul 20254110 AMAQI
26th Jul 20254211 AMAQI
26th Jul 20254112 PMAQI
26th Jul 2025401 PMAQI
26th Jul 2025382 PMAQI
26th Jul 2025373 PMAQI
26th Jul 2025384 PMAQI
26th Jul 2025385 PMAQI
26th Jul 2025386 PMAQI
26th Jul 2025367 PMAQI
26th Jul 2025358 PMAQI
26th Jul 2025369 PMAQI
26th Jul 20253610 PMAQI
26th Jul 20253511 PMAQI
27th Jul 20253412 AMAQI
27th Jul 2025311 AMAQI
27th Jul 2025292 AMAQI
27th Jul 2025283 AMAQI
27th Jul 2025274 AMAQI

28°C23/34°C

27th Jul 2025275 AMAQI
27th Jul 2025296 AMAQI
27th Jul 2025277 AMAQI
27th Jul 2025288 AMAQI
27th Jul 2025309 AMAQI
27th Jul 20253110 AMAQI
27th Jul 20253211 AMAQI
27th Jul 20253312 PMAQI
27th Jul 2025331 PMAQI
27th Jul 2025332 PMAQI
27th Jul 2025323 PMAQI
27th Jul 2025314 PMAQI
27th Jul 2025315 PMAQI
27th Jul 2025326 PMAQI
27th Jul 2025327 PMAQI
27th Jul 2025318 PMAQI
27th Jul 2025329 PMAQI
27th Jul 20253210 PMAQI
27th Jul 20253211 PMAQI
28th Jul 20253212 AMAQI
28th Jul 2025311 AMAQI
28th Jul 2025312 AMAQI
28th Jul 2025323 AMAQI
28th Jul 2025324 AMAQI

28°C24/33°C

28th Jul 2025335 AMAQI
28th Jul 2025346 AMAQI
28th Jul 2025327 AMAQI
28th Jul 2025318 AMAQI
28th Jul 2025329 AMAQI
28th Jul 20253310 AMAQI
28th Jul 20253311 AMAQI
28th Jul 20253312 PMAQI
28th Jul 2025331 PMAQI
28th Jul 2025342 PMAQI
28th Jul 2025343 PMAQI
28th Jul 2025354 PMAQI
28th Jul 2025345 PMAQI
28th Jul 2025356 PMAQI
28th Jul 2025337 PMAQI
28th Jul 2025338 PMAQI
28th Jul 2025349 PMAQI
28th Jul 20253410 PMAQI
28th Jul 20253411 PMAQI
29th Jul 20253612 AMAQI
29th Jul 2025361 AMAQI
29th Jul 2025342 AMAQI
29th Jul 2025333 AMAQI
29th Jul 2025314 AMAQI

29°C24/35°C

29th Jul 2025315 AMAQI
29th Jul 2025316 AMAQI
29th Jul 2025307 AMAQI
29th Jul 2025328 AMAQI
29th Jul 2025349 AMAQI
29th Jul 20253410 AMAQI
29th Jul 20253411 AMAQI
29th Jul 20253712 PMAQI
29th Jul 2025361 PMAQI
29th Jul 2025352 PMAQI
29th Jul 2025353 PMAQI
29th Jul 2025384 PMAQI
29th Jul 2025365 PMAQI
29th Jul 2025376 PMAQI
29th Jul 2025367 PMAQI
29th Jul 2025358 PMAQI
29th Jul 2025369 PMAQI
29th Jul 20253610 PMAQI
29th Jul 20253611 PMAQI
30th Jul 20253712 AMAQI
30th Jul 2025381 AMAQI
30th Jul 2025372 AMAQI
30th Jul 2025383 AMAQI
30th Jul 2025374 AMAQI

29°C20/36°C

30th Jul 2025385 AMAQI
30th Jul 2025376 AMAQI
30th Jul 2025377 AMAQI
30th Jul 2025388 AMAQI
30th Jul 2025399 AMAQI
30th Jul 20253910 AMAQI
30th Jul 20254011 AMAQI
30th Jul 20254112 PMAQI
30th Jul 2025401 PMAQI
30th Jul 2025402 PMAQI
30th Jul 2025403 PMAQI
30th Jul 2025404 PMAQI
30th Jul 2025405 PMAQI
30th Jul 2025406 PMAQI
30th Jul 2025407 PMAQI
30th Jul 2025408 PMAQI
30th Jul 2025419 PMAQI
30th Jul 20254210 PMAQI
30th Jul 20254311 PMAQI
31st Jul 20254112 AMAQI
31st Jul 2025381 AMAQI
31st Jul 2025342 AMAQI
31st Jul 2025333 AMAQI
31st Jul 2025334 AMAQI

27°C21/33°C

31st Jul 2025315 AMAQI
31st Jul 2025326 AMAQI
31st Jul 2025377 AMAQI
31st Jul 2025388 AMAQI
31st Jul 2025389 AMAQI
31st Jul 20253910 AMAQI
31st Jul 20254011 AMAQI
31st Jul 20254112 PMAQI
31st Jul 2025421 PMAQI
31st Jul 2025412 PMAQI
31st Jul 2025403 PMAQI
31st Jul 2025404 PMAQI
31st Jul 2025405 PMAQI
31st Jul 2025416 PMAQI
31st Jul 2025397 PMAQI
31st Jul 2025448 PMAQI
31st Jul 2025509 PMAQI
31st Jul 20255510 PMAQI
31st Jul 20256011 PMAQI
1st Aug 20255912 AMAQI
1st Aug 2025581 AMAQI
1st Aug 2025542 AMAQI
1st Aug 2025533 AMAQI
1st Aug 2025544 AMAQI

22°C17/26°C

1st Aug 2025585 AMAQI
1st Aug 2025576 AMAQI
1st Aug 2025547 AMAQI
1st Aug 2025568 AMAQI
1st Aug 2025599 AMAQI
1st Aug 20255610 AMAQI
1st Aug 20256611 AMAQI
1st Aug 20256412 PMAQI
1st Aug 2025561 PMAQI
1st Aug 2025552 PMAQI
1st Aug 2025553 PMAQI
1st Aug 2025544 PMAQI
1st Aug 2025545 PMAQI
1st Aug 2025546 PMAQI
1st Aug 2025587 PMAQI
1st Aug 2025578 PMAQI
1st Aug 2025569 PMAQI
1st Aug 20255410 PMAQI
1st Aug 20255511 PMAQI
2nd Aug 20255512 AMAQI
2nd Aug 2025551 AMAQI
2nd Aug 2025542 AMAQI
2nd Aug 2025553 AMAQI
2nd Aug 2025544 AMAQI

20°C13/29°C

2nd Aug 2025535 AMAQI
2nd Aug 2025516 AMAQI
2nd Aug 2025497 AMAQI
2nd Aug 2025498 AMAQI
2nd Aug 2025479 AMAQI
2nd Aug 20254610 AMAQI
2nd Aug 20254411 AMAQI
2nd Aug 20254112 PMAQI
2nd Aug 2025391 PMAQI
2nd Aug 2025382 PMAQI
2nd Aug 2025383 PMAQI
2nd Aug 2025374 PMAQI
2nd Aug 2025375 PMAQI
2nd Aug 2025386 PMAQI
2nd Aug 2025477 PMAQI
2nd Aug 2025438 PMAQI
2nd Aug 2025409 PMAQI
2nd Aug 20254010 PMAQI
2nd Aug 20254011 PMAQI
3rd Aug 20254112 AMAQI
3rd Aug 2025401 AMAQI
3rd Aug 2025412 AMAQI
3rd Aug 2025423 AMAQI
3rd Aug 2025424 AMAQI

20°C13/28°C

3rd Aug 2025425 AMAQI
3rd Aug 2025416 AMAQI
3rd Aug 2025407 AMAQI
3rd Aug 2025408 AMAQI
3rd Aug 2025409 AMAQI
3rd Aug 20254010 AMAQI
3rd Aug 20254011 AMAQI
3rd Aug 20254012 PMAQI
3rd Aug 2025421 PMAQI
3rd Aug 2025412 PMAQI
3rd Aug 2025423 PMAQI
3rd Aug 2025434 PMAQI
3rd Aug 2025425 PMAQI
3rd Aug 2025426 PMAQI
3rd Aug 2025407 PMAQI
3rd Aug 2025418 PMAQI
3rd Aug 2025419 PMAQI
3rd Aug 20254110 PMAQI
3rd Aug 20253911 PMAQI
4th Aug 20254112 AMAQI
4th Aug 2025411 AMAQI
4th Aug 2025412 AMAQI
4th Aug 2025413 AMAQI
4th Aug 2025404 AMAQI

20°C12/28°C

4th Aug 2025395 AMAQI
4th Aug 2025396 AMAQI
4th Aug 2025407 AMAQI
4th Aug 2025418 AMAQI
4th Aug 2025429 AMAQI
4th Aug 20254310 AMAQI
4th Aug 20254411 AMAQI
4th Aug 20254512 PMAQI
4th Aug 2025461 PMAQI
4th Aug 2025462 PMAQI
4th Aug 2025473 PMAQI
4th Aug 2025464 PMAQI
4th Aug 2025475 PMAQI
4th Aug 2025466 PMAQI
4th Aug 2025427 PMAQI
4th Aug 2025468 PMAQI
4th Aug 2025489 PMAQI
4th Aug 20254810 PMAQI
4th Aug 20254911 PMAQI
5th Aug 20254912 AMAQI
5th Aug 2025501 AMAQI

21°C15/28°C

5 AM
12 PM
8 PM
12 AM
4 AM

--°C/°C

Day time
Avg. Highest Time
5 AM - 8 PM

38AQI

16 hours / Day
480 hours / Month
Avg. Lowest Time
5 AM - 8 PM

38AQI

16 hours / Day
480 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 8 PM (Avg. 38), while the lowest AQI was between 5 AM to 8 PM (Avg. 38).
Night time
Avg. Highest Time
12 AM - 1 AM

39AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
2 AM - 4 AM

36AQI

3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 1 AM (Avg. 39), while the lowest AQI was between 2 AM to 4 AM (Avg. 36).

2025 Days Vs Air Quality

Springfield, Illinois, United States

2025

87%

187

13%

27

0.4%

1

Total number of days with different AQI categories in last 217 days in 2025 (148 days remaining)

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



Under WHO’s Safe Air Quality Limits: 87%

Health Risk Level:

Low

In 2025, 87% of 217 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

Springfield, Illinois, 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
22AQI
2nd January 2025
24AQI
3rd January 2025
21AQI
4th January 2025
18AQI
5th January 2025
20AQI
6th January 2025
18AQI
7th January 2025
22AQI
8th January 2025
28AQI
9th January 2025
48AQI
10th January 2025
54AQI
11th January 2025
32AQI
12th January 2025
32AQI
13th January 2025
20AQI
14th January 2025
23AQI
15th January 2025
35AQI
16th January 2025
31AQI
17th January 2025
26AQI
18th January 2025
20AQI
19th January 2025
19AQI
20th January 2025
19AQI
21st January 2025
20AQI
22nd January 2025
23AQI
23rd January 2025
28AQI
24th January 2025
28AQI
25th January 2025
28AQI
26th January 2025
20AQI
27th January 2025
23AQI
28th January 2025
24AQI
29th January 2025
20AQI
30th January 2025
31AQI
31st January 2025
26AQI
1st February 2025
24AQI
2nd February 2025
34AQI
3rd February 2025
34AQI
4th February 2025
23AQI
5th February 2025
29AQI
6th February 2025
27AQI
7th February 2025
21AQI
8th February 2025
28AQI
9th February 2025
34AQI
10th February 2025
25AQI
11th February 2025
35AQI
12th February 2025
52AQI
13th February 2025
30AQI
14th February 2025
28AQI
15th February 2025
36AQI
16th February 2025
33AQI
17th February 2025
20AQI
18th February 2025
21AQI
19th February 2025
21AQI
20th February 2025
21AQI
21st February 2025
24AQI
22nd February 2025
44AQI
23rd February 2025
43AQI
24th February 2025
34AQI
25th February 2025
30AQI
26th February 2025
29AQI
27th February 2025
29AQI
28th February 2025
24AQI
1st March 2025
24AQI
2nd March 2025
28AQI
3rd March 2025
32AQI
4th March 2025
38AQI
5th March 2025
25AQI
6th March 2025
26AQI
7th March 2025
25AQI
8th March 2025
30AQI
9th March 2025
31AQI
10th March 2025
32AQI
11th March 2025
34AQI
12th March 2025
38AQI
13th March 2025
56AQI
14th March 2025
48AQI
15th March 2025
79AQI
16th March 2025
22AQI
17th March 2025
22AQI
18th March 2025
25AQI
19th March 2025
27AQI
20th March 2025
18AQI
21st March 2025
25AQI
22nd March 2025
21AQI
23rd March 2025
22AQI
24th March 2025
20AQI
25th March 2025
20AQI
26th March 2025
26AQI
27th March 2025
35AQI
28th March 2025
33AQI
29th March 2025
39AQI
30th March 2025
26AQI
31st March 2025
17AQI
1st April 2025
28AQI
2nd April 2025
33AQI
3rd April 2025
21AQI
4th April 2025
33AQI
5th April 2025
25AQI
6th April 2025
21AQI
7th April 2025
25AQI
8th April 2025
20AQI
9th April 2025
23AQI
10th April 2025
31AQI
11th April 2025
41AQI
12th April 2025
40AQI
13th April 2025
38AQI
14th April 2025
32AQI
15th April 2025
21AQI
16th April 2025
27AQI
17th April 2025
41AQI
18th April 2025
55AQI
19th April 2025
47AQI
20th April 2025
38AQI
21st April 2025
19AQI
22nd April 2025
26AQI
23rd April 2025
28AQI
24th April 2025
34AQI
25th April 2025
39AQI
26th April 2025
22AQI
27th April 2025
19AQI
28th April 2025
33AQI
29th April 2025
31AQI
30th April 2025
29AQI
1st May 2025
27AQI
2nd May 2025
22AQI
3rd May 2025
21AQI
4th May 2025
17AQI
5th May 2025
21AQI
6th May 2025
25AQI
7th May 2025
26AQI
8th May 2025
28AQI
9th May 2025
25AQI
10th May 2025
33AQI
11th May 2025
28AQI
12th May 2025
34AQI
13th May 2025
24AQI
14th May 2025
34AQI
15th May 2025
52AQI
16th May 2025
29AQI
17th May 2025
21AQI
18th May 2025
19AQI
19th May 2025
25AQI
20th May 2025
24AQI
21st May 2025
15AQI
22nd May 2025
14AQI
23rd May 2025
17AQI
24th May 2025
26AQI
25th May 2025
29AQI
26th May 2025
18AQI
27th May 2025
19AQI
28th May 2025
25AQI
29th May 2025
36AQI
30th May 2025
30AQI
31st May 2025
45AQI
1st June 2025
31AQI
2nd June 2025
45AQI
3rd June 2025
56AQI
4th June 2025
35AQI
5th June 2025
48AQI
6th June 2025
62AQI
7th June 2025
68AQI
8th June 2025
60AQI
9th June 2025
60AQI
10th June 2025
56AQI
11th June 2025
66AQI
12th June 2025
77AQI
13th June 2025
70AQI
14th June 2025
54AQI
15th June 2025
47AQI
16th June 2025
43AQI
17th June 2025
31AQI
18th June 2025
31AQI
19th June 2025
23AQI
20th June 2025
35AQI
21st June 2025
44AQI
22nd June 2025
48AQI
23rd June 2025
56AQI
24th June 2025
53AQI
25th June 2025
50AQI
26th June 2025
53AQI
27th June 2025
34AQI
28th June 2025
29AQI
29th June 2025
30AQI
30th June 2025
27AQI
1st July 2025
29AQI
2nd July 2025
41AQI
3rd July 2025
49AQI
4th July 2025
56AQI
5th July 2025
67AQI
6th July 2025
56AQI
7th July 2025
42AQI
8th July 2025
64AQI
9th July 2025
39AQI
10th July 2025
40AQI
11th July 2025
45AQI
12th July 2025
31AQI
13th July 2025
42AQI
14th July 2025
42AQI
15th July 2025
43AQI
16th July 2025
32AQI
17th July 2025
27AQI
18th July 2025
28AQI
19th July 2025
36AQI
20th July 2025
40AQI
21st July 2025
27AQI
22nd July 2025
34AQI
23rd July 2025
50AQI
24th July 2025
53AQI
25th July 2025
36AQI
26th July 2025
37AQI
27th July 2025
25AQI
28th July 2025
33AQI
29th July 2025
32AQI
30th July 2025
36AQI
31st July 2025
51AQI
1st August 2025
111AQI
2nd August 2025
81AQI
3rd August 2025
54AQI

26AQI

30AQI

30AQI

31AQI

26AQI

47AQI

41AQI

82AQI


No. of days

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

202534AQI

30
1
27
1
29
2
29
1
30
1
17
13
25
6
2
1
187
27
1

Highest AQI recorded in

August

82AQI


Lowest AQI recorded in

January

26AQI


202429AQI

30
1
23
6
29
2
30
31
28
2
28
3
24
7
30
27
4
30
29
2
339
27

Highest AQI recorded in

August

38AQI


Lowest AQI recorded in

April

20AQI


202339AQI

23
8
26
2
27
4
27
3
26
5
7
20
2
1
19
11
1
21
10
23
7
29
2
29
30
1
287
73
3
1

Highest AQI recorded in

June

68AQI


Lowest AQI recorded in

December

29AQI


202237AQI

28
3
21
1
27
2
17
26
4
25
4
1
15
7
1
1
28
2
26
5
23
7
21
10
258
46
1

Highest AQI recorded in

August

49AQI


Lowest AQI recorded in

April

29AQI


202135AQI

27
3
24
4
28
3
27
3
30
1
24
1
19
12
21
10
24
4
29
2
25
3
28
3
306
49

Highest AQI recorded in

July

46AQI


Lowest AQI recorded in

October

27AQI


202032AQI

12
1
21
18
29
1
26
5
24
1
28
1
27
4
26
2
23
6
234
21

Highest AQI recorded in

December

39AQI


Lowest AQI recorded in

May

21AQI


Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2023(Avg.)
39AQI
Least Polluted Year Recorded
2024(Avg.)
29AQI


Springfield's annual 2025 AQI (34) shows an average percentage change of -1.2% (improved AQI) compared to previous years: 2020 (32), 2021 (35), 2022 (37), 2023 (39), 2024 (29).