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+
October Air Quality Analysis
Springfield, Illinois, United States
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
29th Oct 2024
81AQILowest AQI recorded on
14th Oct 2023
7AQISame Day Analysis (10th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 51 of Moderate air quality, showing improvement over 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 10th Oct - 11th Oct 2025
Springfield, Illinois, United States
AQI
Day
Night
.
6 AM10th Oct 2025
6 PM
5 AM11th Oct 2025
Day time
Avg. Highest Time
11AM10th Oct
49AQI
Avg. Lowest Time
6PM10th Oct
29AQI
Night time
Avg. Highest Time
12AM11th Oct
48AQI
Avg. Lowest Time
7PM10th Oct
34AQI
In the last 24 hours,
Springfield's AQI reached its highest point of 49 at 11 AM during the Day, while the lowest point, 29, was recorded at 6 PM during the Day between 10th Oct and 11th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Springfield, Illinois, United States
SepOct
11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th
Day
Night
11th Sep 2025476 AMAQI
11th Sep 2025457 AMAQI
11th Sep 2025458 AMAQI
11th Sep 2025469 AMAQI
11th Sep 20254510 AMAQI
11th Sep 20254511 AMAQI
11th Sep 20254312 PMAQI
11th Sep 2025411 PMAQI
11th Sep 2025402 PMAQI
11th Sep 2025403 PMAQI
11th Sep 2025404 PMAQI
11th Sep 2025395 PMAQI
11th Sep 2025396 PMAQI
11th Sep 2025447 PMAQI
11th Sep 2025468 PMAQI
11th Sep 2025469 PMAQI
11th Sep 20254510 PMAQI
11th Sep 20254211 PMAQI
12th Sep 20254212 AMAQI
12th Sep 2025421 AMAQI
12th Sep 2025412 AMAQI
12th Sep 2025413 AMAQI
12th Sep 2025404 AMAQI
12th Sep 2025415 AMAQI
23°C13/33°C
12th Sep 2025416 AMAQI
12th Sep 2025417 AMAQI
12th Sep 2025418 AMAQI
12th Sep 2025419 AMAQI
12th Sep 20254110 AMAQI
12th Sep 20254211 AMAQI
12th Sep 20254412 PMAQI
12th Sep 2025431 PMAQI
12th Sep 2025432 PMAQI
12th Sep 2025443 PMAQI
12th Sep 2025454 PMAQI
12th Sep 2025455 PMAQI
12th Sep 2025466 PMAQI
12th Sep 2025427 PMAQI
12th Sep 2025448 PMAQI
12th Sep 2025479 PMAQI
12th Sep 20254810 PMAQI
12th Sep 20254811 PMAQI
13th Sep 20255012 AMAQI
13th Sep 2025511 AMAQI
13th Sep 2025502 AMAQI
13th Sep 2025513 AMAQI
13th Sep 2025494 AMAQI
13th Sep 2025495 AMAQI
24°C14/35°C
13th Sep 2025506 AMAQI
13th Sep 2025497 AMAQI
13th Sep 2025498 AMAQI
13th Sep 2025489 AMAQI
13th Sep 20254810 AMAQI
13th Sep 20254911 AMAQI
13th Sep 20255112 PMAQI
13th Sep 2025501 PMAQI
13th Sep 2025492 PMAQI
13th Sep 2025493 PMAQI
13th Sep 2025494 PMAQI
13th Sep 2025465 PMAQI
13th Sep 2025456 PMAQI
13th Sep 2025487 PMAQI
13th Sep 2025468 PMAQI
13th Sep 2025439 PMAQI
13th Sep 20254210 PMAQI
13th Sep 20254311 PMAQI
14th Sep 20254312 AMAQI
14th Sep 2025441 AMAQI
14th Sep 2025442 AMAQI
14th Sep 2025433 AMAQI
14th Sep 2025424 AMAQI
14th Sep 2025435 AMAQI
27°C18/36°C
14th Sep 2025436 AMAQI
14th Sep 2025427 AMAQI
14th Sep 2025428 AMAQI
14th Sep 2025429 AMAQI
14th Sep 20254310 AMAQI
14th Sep 20254211 AMAQI
14th Sep 20254212 PMAQI
14th Sep 2025431 PMAQI
14th Sep 2025412 PMAQI
14th Sep 2025403 PMAQI
14th Sep 2025404 PMAQI
14th Sep 2025405 PMAQI
14th Sep 2025396 PMAQI
14th Sep 2025427 PMAQI
14th Sep 2025418 PMAQI
14th Sep 2025399 PMAQI
14th Sep 20253810 PMAQI
14th Sep 20254211 PMAQI
15th Sep 20254212 AMAQI
15th Sep 2025431 AMAQI
15th Sep 2025422 AMAQI
15th Sep 2025423 AMAQI
15th Sep 2025434 AMAQI
15th Sep 2025435 AMAQI
28°C19/38°C
15th Sep 2025436 AMAQI
15th Sep 2025397 AMAQI
15th Sep 2025368 AMAQI
15th Sep 2025489 AMAQI
15th Sep 20254510 AMAQI
15th Sep 20254611 AMAQI
15th Sep 20254612 PMAQI
15th Sep 2025451 PMAQI
15th Sep 2025442 PMAQI
15th Sep 2025443 PMAQI
15th Sep 2025434 PMAQI
15th Sep 2025425 PMAQI
15th Sep 2025416 PMAQI
15th Sep 2025427 PMAQI
15th Sep 2025428 PMAQI
15th Sep 2025429 PMAQI
15th Sep 20254310 PMAQI
15th Sep 20254311 PMAQI
16th Sep 20254412 AMAQI
16th Sep 2025421 AMAQI
16th Sep 2025432 AMAQI
16th Sep 2025443 AMAQI
16th Sep 2025434 AMAQI
16th Sep 2025415 AMAQI
26°C18/35°C
16th Sep 2025416 AMAQI
16th Sep 2025427 AMAQI
16th Sep 2025438 AMAQI
16th Sep 2025429 AMAQI
16th Sep 20254210 AMAQI
16th Sep 20254311 AMAQI
16th Sep 20254412 PMAQI
16th Sep 2025451 PMAQI
16th Sep 2025422 PMAQI
16th Sep 2025433 PMAQI
16th Sep 2025434 PMAQI
16th Sep 2025425 PMAQI
16th Sep 2025416 PMAQI
16th Sep 2025427 PMAQI
16th Sep 2025428 PMAQI
16th Sep 2025429 PMAQI
16th Sep 20254210 PMAQI
16th Sep 20254211 PMAQI
17th Sep 20254212 AMAQI
17th Sep 2025421 AMAQI
17th Sep 2025422 AMAQI
17th Sep 2025413 AMAQI
17th Sep 2025424 AMAQI
17th Sep 2025425 AMAQI
25°C16/35°C
17th Sep 2025436 AMAQI
17th Sep 2025427 AMAQI
17th Sep 2025418 AMAQI
17th Sep 2025429 AMAQI
17th Sep 20254210 AMAQI
17th Sep 20254211 AMAQI
17th Sep 20254212 PMAQI
17th Sep 2025411 PMAQI
17th Sep 2025412 PMAQI
17th Sep 2025413 PMAQI
17th Sep 2025414 PMAQI
17th Sep 2025405 PMAQI
17th Sep 2025406 PMAQI
17th Sep 2025417 PMAQI
17th Sep 2025418 PMAQI
17th Sep 2025409 PMAQI
17th Sep 20254010 PMAQI
17th Sep 20254011 PMAQI
18th Sep 20254012 AMAQI
18th Sep 2025401 AMAQI
18th Sep 2025372 AMAQI
18th Sep 2025373 AMAQI
18th Sep 2025364 AMAQI
18th Sep 2025375 AMAQI
23°C13/33°C
18th Sep 2025356 AMAQI
18th Sep 2025377 AMAQI
18th Sep 2025398 AMAQI
18th Sep 2025399 AMAQI
18th Sep 20253910 AMAQI
18th Sep 20253711 AMAQI
18th Sep 20253912 PMAQI
18th Sep 2025371 PMAQI
18th Sep 2025372 PMAQI
18th Sep 2025383 PMAQI
18th Sep 2025384 PMAQI
18th Sep 2025385 PMAQI
18th Sep 2025406 PMAQI
18th Sep 2025407 PMAQI
18th Sep 2025378 PMAQI
18th Sep 2025389 PMAQI
18th Sep 20254010 PMAQI
18th Sep 20254211 PMAQI
19th Sep 20254212 AMAQI
19th Sep 2025431 AMAQI
19th Sep 2025432 AMAQI
19th Sep 2025423 AMAQI
19th Sep 2025434 AMAQI
19th Sep 2025435 AMAQI
24°C12/36°C
19th Sep 2025426 AMAQI
19th Sep 2025437 AMAQI
19th Sep 2025448 AMAQI
19th Sep 2025439 AMAQI
19th Sep 20254610 AMAQI
19th Sep 20254811 AMAQI
19th Sep 20254812 PMAQI
19th Sep 2025451 PMAQI
19th Sep 2025442 PMAQI
19th Sep 2025433 PMAQI
19th Sep 2025424 PMAQI
19th Sep 2025415 PMAQI
19th Sep 2025406 PMAQI
19th Sep 2025437 PMAQI
19th Sep 2025448 PMAQI
19th Sep 2025429 PMAQI
19th Sep 20254410 PMAQI
19th Sep 20254611 PMAQI
20th Sep 20254612 AMAQI
20th Sep 2025471 AMAQI
20th Sep 2025482 AMAQI
20th Sep 2025483 AMAQI
20th Sep 2025464 AMAQI
20th Sep 2025445 AMAQI
23°C16/32°C
20th Sep 2025416 AMAQI
20th Sep 2025437 AMAQI
20th Sep 2025428 AMAQI
20th Sep 2025419 AMAQI
20th Sep 20254010 AMAQI
20th Sep 20254011 AMAQI
20th Sep 20254012 PMAQI
20th Sep 2025391 PMAQI
20th Sep 2025402 PMAQI
20th Sep 2025423 PMAQI
20th Sep 2025424 PMAQI
20th Sep 2025405 PMAQI
20th Sep 2025396 PMAQI
20th Sep 2025427 PMAQI
20th Sep 2025418 PMAQI
20th Sep 2025409 PMAQI
20th Sep 20254210 PMAQI
20th Sep 20254211 PMAQI
21st Sep 20254112 AMAQI
21st Sep 2025411 AMAQI
21st Sep 2025382 AMAQI
21st Sep 2025363 AMAQI
21st Sep 2025324 AMAQI
21st Sep 2025295 AMAQI
22°C18/30°C
21st Sep 2025296 AMAQI
21st Sep 2025317 AMAQI
21st Sep 2025328 AMAQI
21st Sep 2025319 AMAQI
21st Sep 20253110 AMAQI
21st Sep 20253211 AMAQI
21st Sep 20253212 PMAQI
21st Sep 2025351 PMAQI
21st Sep 2025352 PMAQI
21st Sep 2025353 PMAQI
21st Sep 2025344 PMAQI
21st Sep 2025335 PMAQI
21st Sep 2025336 PMAQI
21st Sep 2025327 PMAQI
21st Sep 2025338 PMAQI
21st Sep 2025319 PMAQI
21st Sep 20253010 PMAQI
21st Sep 20253011 PMAQI
22nd Sep 20252912 AMAQI
22nd Sep 2025291 AMAQI
22nd Sep 2025262 AMAQI
22nd Sep 2025253 AMAQI
22nd Sep 2025254 AMAQI
22nd Sep 2025235 AMAQI
23°C17/32°C
22nd Sep 2025246 AMAQI
22nd Sep 2025247 AMAQI
22nd Sep 2025268 AMAQI
22nd Sep 2025279 AMAQI
22nd Sep 20252710 AMAQI
22nd Sep 20252911 AMAQI
22nd Sep 20253012 PMAQI
22nd Sep 2025341 PMAQI
22nd Sep 2025332 PMAQI
22nd Sep 2025323 PMAQI
22nd Sep 2025324 PMAQI
22nd Sep 2025305 PMAQI
22nd Sep 2025296 PMAQI
22nd Sep 2025287 PMAQI
22nd Sep 2025288 PMAQI
22nd Sep 2025309 PMAQI
22nd Sep 20253010 PMAQI
22nd Sep 20253111 PMAQI
23rd Sep 20253112 AMAQI
23rd Sep 2025301 AMAQI
23rd Sep 2025282 AMAQI
23rd Sep 2025283 AMAQI
23rd Sep 2025274 AMAQI
23rd Sep 2025305 AMAQI
22°C18/28°C
23rd Sep 2025306 AMAQI
23rd Sep 2025287 AMAQI
23rd Sep 2025298 AMAQI
23rd Sep 2025329 AMAQI
23rd Sep 20253410 AMAQI
23rd Sep 20253211 AMAQI
23rd Sep 20253112 PMAQI
23rd Sep 2025321 PMAQI
23rd Sep 2025322 PMAQI
23rd Sep 2025333 PMAQI
23rd Sep 2025354 PMAQI
23rd Sep 2025355 PMAQI
23rd Sep 2025366 PMAQI
23rd Sep 2025327 PMAQI
23rd Sep 2025328 PMAQI
23rd Sep 2025369 PMAQI
23rd Sep 20253710 PMAQI
23rd Sep 20253611 PMAQI
24th Sep 20253612 AMAQI
24th Sep 2025351 AMAQI
24th Sep 2025352 AMAQI
24th Sep 2025363 AMAQI
24th Sep 2025414 AMAQI
24th Sep 2025415 AMAQI
23°C17/32°C
24th Sep 2025416 AMAQI
24th Sep 2025397 AMAQI
24th Sep 2025388 AMAQI
24th Sep 2025389 AMAQI
24th Sep 20254010 AMAQI
24th Sep 20254011 AMAQI
24th Sep 20254112 PMAQI
24th Sep 2025401 PMAQI
24th Sep 2025432 PMAQI
24th Sep 2025403 PMAQI
24th Sep 2025414 PMAQI
24th Sep 2025395 PMAQI
24th Sep 2025396 PMAQI
24th Sep 2025407 PMAQI
24th Sep 2025388 PMAQI
24th Sep 2025369 PMAQI
24th Sep 20253610 PMAQI
24th Sep 20253711 PMAQI
25th Sep 20253612 AMAQI
25th Sep 2025341 AMAQI
25th Sep 2025352 AMAQI
25th Sep 2025363 AMAQI
25th Sep 2025384 AMAQI
25th Sep 2025395 AMAQI
21°C19/25°C
25th Sep 2025366 AMAQI
25th Sep 2025367 AMAQI
25th Sep 2025388 AMAQI
25th Sep 2025369 AMAQI
25th Sep 20253810 AMAQI
25th Sep 20254111 AMAQI
25th Sep 20254012 PMAQI
25th Sep 2025371 PMAQI
25th Sep 2025312 PMAQI
25th Sep 2025303 PMAQI
25th Sep 2025324 PMAQI
25th Sep 2025325 PMAQI
25th Sep 2025336 PMAQI
25th Sep 2025347 PMAQI
25th Sep 2025348 PMAQI
25th Sep 2025309 PMAQI
25th Sep 20252810 PMAQI
25th Sep 20252911 PMAQI
26th Sep 20252912 AMAQI
26th Sep 2025291 AMAQI
26th Sep 2025282 AMAQI
26th Sep 2025273 AMAQI
26th Sep 2025284 AMAQI
26th Sep 2025275 AMAQI
19°C13/28°C
26th Sep 2025246 AMAQI
26th Sep 2025237 AMAQI
26th Sep 2025268 AMAQI
26th Sep 2025289 AMAQI
26th Sep 20253110 AMAQI
26th Sep 20253011 AMAQI
26th Sep 20253112 PMAQI
26th Sep 2025301 PMAQI
26th Sep 2025302 PMAQI
26th Sep 2025313 PMAQI
26th Sep 2025334 PMAQI
26th Sep 2025345 PMAQI
26th Sep 2025356 PMAQI
26th Sep 2025347 PMAQI
26th Sep 2025318 PMAQI
26th Sep 2025299 PMAQI
26th Sep 20253210 PMAQI
26th Sep 20253711 PMAQI
27th Sep 20253612 AMAQI
27th Sep 2025371 AMAQI
27th Sep 2025362 AMAQI
27th Sep 2025353 AMAQI
27th Sep 2025354 AMAQI
27th Sep 2025345 AMAQI
21°C11/31°C
27th Sep 2025296 AMAQI
27th Sep 2025297 AMAQI
27th Sep 2025318 AMAQI
27th Sep 2025299 AMAQI
27th Sep 20252710 AMAQI
27th Sep 20252611 AMAQI
27th Sep 20252512 PMAQI
27th Sep 2025281 PMAQI
27th Sep 2025232 PMAQI
27th Sep 2025243 PMAQI
27th Sep 2025264 PMAQI
27th Sep 2025235 PMAQI
27th Sep 2025236 PMAQI
27th Sep 2025257 PMAQI
27th Sep 2025278 PMAQI
27th Sep 2025319 PMAQI
27th Sep 20253410 PMAQI
27th Sep 20253511 PMAQI
28th Sep 20254012 AMAQI
28th Sep 2025431 AMAQI
28th Sep 2025392 AMAQI
28th Sep 2025383 AMAQI
28th Sep 2025374 AMAQI
28th Sep 2025345 AMAQI
22°C12/33°C
28th Sep 2025346 AMAQI
28th Sep 2025337 AMAQI
28th Sep 2025308 AMAQI
28th Sep 2025309 AMAQI
28th Sep 20253110 AMAQI
28th Sep 20253011 AMAQI
28th Sep 20253512 PMAQI
28th Sep 2025321 PMAQI
28th Sep 2025302 PMAQI
28th Sep 2025313 PMAQI
28th Sep 2025344 PMAQI
28th Sep 2025325 PMAQI
28th Sep 2025386 PMAQI
28th Sep 2025437 PMAQI
28th Sep 2025478 PMAQI
28th Sep 2025559 PMAQI
28th Sep 20255810 PMAQI
28th Sep 20255211 PMAQI
29th Sep 20254812 AMAQI
29th Sep 2025411 AMAQI
29th Sep 2025402 AMAQI
29th Sep 2025403 AMAQI
29th Sep 2025394 AMAQI
29th Sep 2025365 AMAQI
23°C12/35°C
29th Sep 2025366 AMAQI
29th Sep 2025377 AMAQI
29th Sep 2025418 AMAQI
29th Sep 2025469 AMAQI
29th Sep 20255210 AMAQI
29th Sep 20255111 AMAQI
29th Sep 20254712 PMAQI
29th Sep 2025451 PMAQI
29th Sep 2025402 PMAQI
29th Sep 2025403 PMAQI
29th Sep 2025404 PMAQI
29th Sep 2025405 PMAQI
29th Sep 2025426 PMAQI
29th Sep 2025397 PMAQI
29th Sep 2025378 PMAQI
29th Sep 2025419 PMAQI
29th Sep 20253910 PMAQI
29th Sep 20253511 PMAQI
30th Sep 20253612 AMAQI
30th Sep 2025361 AMAQI
30th Sep 2025332 AMAQI
30th Sep 2025333 AMAQI
30th Sep 2025344 AMAQI
30th Sep 2025365 AMAQI
24°C14/35°C
30th Sep 2025336 AMAQI
30th Sep 2025347 AMAQI
30th Sep 2025308 AMAQI
30th Sep 2025309 AMAQI
30th Sep 20253110 AMAQI
30th Sep 20252911 AMAQI
30th Sep 20253012 PMAQI
30th Sep 2025321 PMAQI
30th Sep 2025332 PMAQI
30th Sep 2025293 PMAQI
30th Sep 2025264 PMAQI
30th Sep 2025265 PMAQI
30th Sep 2025266 PMAQI
30th Sep 2025237 PMAQI
30th Sep 2025238 PMAQI
30th Sep 2025239 PMAQI
30th Sep 20253110 PMAQI
30th Sep 20253211 PMAQI
1st Oct 20253112 AMAQI
1st Oct 2025301 AMAQI
1st Oct 2025322 AMAQI
1st Oct 2025313 AMAQI
1st Oct 2025364 AMAQI
1st Oct 2025375 AMAQI
24°C15/34°C
1st Oct 2025316 AMAQI
1st Oct 2025327 AMAQI
1st Oct 2025338 AMAQI
1st Oct 2025379 AMAQI
1st Oct 20253810 AMAQI
1st Oct 20253911 AMAQI
1st Oct 20254212 PMAQI
1st Oct 2025371 PMAQI
1st Oct 2025342 PMAQI
1st Oct 2025353 PMAQI
1st Oct 2025364 PMAQI
1st Oct 2025365 PMAQI
1st Oct 2025376 PMAQI
1st Oct 2025347 PMAQI
1st Oct 2025348 PMAQI
1st Oct 2025349 PMAQI
1st Oct 20253410 PMAQI
1st Oct 20253611 PMAQI
2nd Oct 20253612 AMAQI
2nd Oct 2025381 AMAQI
2nd Oct 2025382 AMAQI
2nd Oct 2025403 AMAQI
2nd Oct 2025404 AMAQI
2nd Oct 2025385 AMAQI
23°C13/33°C
2nd Oct 2025376 AMAQI
2nd Oct 2025367 AMAQI
2nd Oct 2025348 AMAQI
2nd Oct 2025449 AMAQI
2nd Oct 20253910 AMAQI
2nd Oct 20254011 AMAQI
2nd Oct 20254112 PMAQI
2nd Oct 2025371 PMAQI
2nd Oct 2025382 PMAQI
2nd Oct 2025363 PMAQI
2nd Oct 2025354 PMAQI
2nd Oct 2025345 PMAQI
2nd Oct 2025346 PMAQI
2nd Oct 2025337 PMAQI
2nd Oct 2025338 PMAQI
2nd Oct 2025379 PMAQI
2nd Oct 20253810 PMAQI
2nd Oct 20254011 PMAQI
3rd Oct 20253912 AMAQI
3rd Oct 2025361 AMAQI
3rd Oct 2025332 AMAQI
3rd Oct 2025333 AMAQI
3rd Oct 2025314 AMAQI
3rd Oct 2025375 AMAQI
24°C16/34°C
3rd Oct 2025336 AMAQI
3rd Oct 2025347 AMAQI
3rd Oct 2025408 AMAQI
3rd Oct 2025409 AMAQI
3rd Oct 20255110 AMAQI
3rd Oct 20255511 AMAQI
3rd Oct 20255712 PMAQI
3rd Oct 2025571 PMAQI
3rd Oct 2025542 PMAQI
3rd Oct 2025533 PMAQI
3rd Oct 2025474 PMAQI
3rd Oct 2025445 PMAQI
3rd Oct 2025446 PMAQI
3rd Oct 2025437 PMAQI
3rd Oct 2025448 PMAQI
3rd Oct 2025469 PMAQI
3rd Oct 20254410 PMAQI
3rd Oct 20254411 PMAQI
4th Oct 20254412 AMAQI
4th Oct 2025421 AMAQI
4th Oct 2025452 AMAQI
4th Oct 2025443 AMAQI
4th Oct 2025424 AMAQI
4th Oct 2025455 AMAQI
24°C18/34°C
4th Oct 2025446 AMAQI
4th Oct 2025467 AMAQI
4th Oct 2025438 AMAQI
4th Oct 2025459 AMAQI
4th Oct 20255310 AMAQI
4th Oct 20255411 AMAQI
4th Oct 20255612 PMAQI
4th Oct 2025591 PMAQI
4th Oct 2025522 PMAQI
4th Oct 2025483 PMAQI
4th Oct 2025444 PMAQI
4th Oct 2025435 PMAQI
4th Oct 2025456 PMAQI
4th Oct 2025457 PMAQI
4th Oct 2025488 PMAQI
4th Oct 2025499 PMAQI
4th Oct 20254910 PMAQI
4th Oct 20255211 PMAQI
5th Oct 20255512 AMAQI
5th Oct 2025501 AMAQI
5th Oct 2025492 AMAQI
5th Oct 2025493 AMAQI
5th Oct 2025474 AMAQI
5th Oct 2025525 AMAQI
25°C18/33°C
5th Oct 2025516 AMAQI
5th Oct 2025537 AMAQI
5th Oct 2025528 AMAQI
5th Oct 2025519 AMAQI
5th Oct 20255310 AMAQI
5th Oct 20255411 AMAQI
5th Oct 20254512 PMAQI
5th Oct 2025411 PMAQI
5th Oct 2025402 PMAQI
5th Oct 2025403 PMAQI
5th Oct 2025384 PMAQI
5th Oct 2025375 PMAQI
5th Oct 2025386 PMAQI
5th Oct 2025417 PMAQI
5th Oct 2025408 PMAQI
5th Oct 2025389 PMAQI
5th Oct 20253810 PMAQI
5th Oct 20253811 PMAQI
6th Oct 20253512 AMAQI
6th Oct 2025431 AMAQI
6th Oct 2025412 AMAQI
6th Oct 2025393 AMAQI
6th Oct 2025404 AMAQI
6th Oct 2025425 AMAQI
23°C16/32°C
6th Oct 2025406 AMAQI
6th Oct 2025467 AMAQI
6th Oct 2025478 AMAQI
6th Oct 2025459 AMAQI
6th Oct 20255010 AMAQI
6th Oct 20255211 AMAQI
6th Oct 20255312 PMAQI
6th Oct 2025511 PMAQI
7th Oct 2025344 AMAQI
7th Oct 2025145 AMAQI
24°C19/32°C
7th Oct 2025316 AMAQI
7th Oct 2025217 AMAQI
7th Oct 2025218 AMAQI
7th Oct 2025309 AMAQI
7th Oct 20253210 AMAQI
7th Oct 20253111 AMAQI
7th Oct 20253912 PMAQI
7th Oct 2025421 PMAQI
7th Oct 2025372 PMAQI
7th Oct 2025363 PMAQI
7th Oct 2025334 PMAQI
7th Oct 2025305 PMAQI
7th Oct 2025336 PMAQI
7th Oct 2025267 PMAQI
7th Oct 2025268 PMAQI
7th Oct 2025279 PMAQI
7th Oct 20253210 PMAQI
7th Oct 20253511 PMAQI
8th Oct 20253812 AMAQI
8th Oct 2025351 AMAQI
8th Oct 2025302 AMAQI
8th Oct 2025303 AMAQI
8th Oct 2025294 AMAQI
8th Oct 2025285 AMAQI
18°C13/21°C
8th Oct 2025246 AMAQI
8th Oct 2025207 AMAQI
8th Oct 2025278 AMAQI
8th Oct 2025289 AMAQI
8th Oct 20253410 AMAQI
8th Oct 20254011 AMAQI
8th Oct 20254012 PMAQI
8th Oct 2025421 PMAQI
8th Oct 2025442 PMAQI
8th Oct 2025323 PMAQI
8th Oct 2025314 PMAQI
8th Oct 2025335 PMAQI
8th Oct 2025346 PMAQI
8th Oct 2025407 PMAQI
8th Oct 2025408 PMAQI
8th Oct 2025319 PMAQI
8th Oct 20253010 PMAQI
8th Oct 20253811 PMAQI
9th Oct 20253512 AMAQI
9th Oct 2025391 AMAQI
9th Oct 2025262 AMAQI
9th Oct 2025233 AMAQI
9th Oct 2025204 AMAQI
9th Oct 2025195 AMAQI
14°C6/24°C
9th Oct 2025186 AMAQI
9th Oct 2025187 AMAQI
9th Oct 2025238 AMAQI
9th Oct 2025219 AMAQI
9th Oct 20252410 AMAQI
9th Oct 20254511 AMAQI
9th Oct 20254312 PMAQI
9th Oct 2025371 PMAQI
9th Oct 2025382 PMAQI
9th Oct 2025353 PMAQI
9th Oct 2025294 PMAQI
9th Oct 2025365 PMAQI
9th Oct 2025266 PMAQI
9th Oct 2025207 PMAQI
9th Oct 2025278 PMAQI
9th Oct 2025339 PMAQI
9th Oct 20252810 PMAQI
9th Oct 20253411 PMAQI
10th Oct 20254112 AMAQI
10th Oct 2025481 AMAQI
10th Oct 2025452 AMAQI
10th Oct 2025433 AMAQI
10th Oct 2025464 AMAQI
10th Oct 2025435 AMAQI
15°C6/24°C
10th Oct 2025426 AMAQI
10th Oct 2025427 AMAQI
10th Oct 2025448 AMAQI
10th Oct 2025459 AMAQI
10th Oct 20254810 AMAQI
10th Oct 20254911 AMAQI
10th Oct 20254312 PMAQI
10th Oct 2025451 PMAQI
10th Oct 2025442 PMAQI
10th Oct 2025383 PMAQI
10th Oct 2025344 PMAQI
10th Oct 2025325 PMAQI
10th Oct 2025296 PMAQI
10th Oct 2025347 PMAQI
10th Oct 2025368 PMAQI
10th Oct 2025379 PMAQI
10th Oct 20253810 PMAQI
10th Oct 20254111 PMAQI
11th Oct 20254812 AMAQI
11th Oct 2025411 AMAQI
11th Oct 2025352 AMAQI
11th Oct 2025393 AMAQI
11th Oct 2025394 AMAQI
11th Oct 2025415 AMAQI
16°C8/25°C
11th Oct 2025386 AMAQI
6 AM11th Oct 2025397 AMAQI
11th Oct 2025408 AMAQI
11th Oct 2025399 AMAQI
11th Oct 20253910 AMAQI
11th Oct 20253911 AMAQI
11th Oct 20254512 PMAQI
12 PM11th Oct 2025461 PMAQI
11th Oct 2025372 PMAQI
6 PM
12 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
10 AM - 1 PM
41AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
6 AM - 9 AM
37AQI
4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 AM to 1 PM (Avg. 41), while the lowest AQI was between 6 AM to 9 AM (Avg. 37).
Night time
Avg. Highest Time
12 AM - 1 AM
40AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
2 AM - 11 PM
38AQI
9 hours / Day
270 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 1 AM (Avg. 40), while the lowest AQI was between 2 AM to 11 PM (Avg. 38).
2025 Days Vs Air Quality
Springfield, Illinois, United States
2025
82%
232
18%
50
0.3%
1
Total number of days with different AQI categories in last 284 days in 2025 (81 days remaining)
Good
232 DaysModerate
50 DaysPoor
1 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 82%
Health Risk Level:
Low
In 2025, 82% of 284 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.
-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
22AQI
22AQI
2nd January 2025
24AQI
24AQI
3rd January 2025
21AQI
21AQI
4th January 2025
18AQI
18AQI
5th January 2025
20AQI
20AQI
6th January 2025
18AQI
18AQI
7th January 2025
22AQI
22AQI
8th January 2025
28AQI
28AQI
9th January 2025
48AQI
48AQI
10th January 2025
54AQI
54AQI
11th January 2025
32AQI
32AQI
12th January 2025
32AQI
32AQI
13th January 2025
20AQI
20AQI
14th January 2025
23AQI
23AQI
15th January 2025
35AQI
35AQI
16th January 2025
31AQI
31AQI
17th January 2025
26AQI
26AQI
18th January 2025
20AQI
20AQI
19th January 2025
19AQI
19AQI
20th January 2025
19AQI
19AQI
21st January 2025
20AQI
20AQI
22nd January 2025
23AQI
23AQI
23rd January 2025
28AQI
28AQI
24th January 2025
28AQI
28AQI
25th January 2025
28AQI
28AQI
26th January 2025
20AQI
20AQI
27th January 2025
23AQI
23AQI
28th January 2025
24AQI
24AQI
29th January 2025
20AQI
20AQI
30th January 2025
31AQI
31AQI
31st January 2025
26AQI
26AQI
1st February 2025
24AQI
24AQI
2nd February 2025
34AQI
34AQI
3rd February 2025
34AQI
34AQI
4th February 2025
23AQI
23AQI
5th February 2025
29AQI
29AQI
6th February 2025
27AQI
27AQI
7th February 2025
21AQI
21AQI
8th February 2025
28AQI
28AQI
9th February 2025
34AQI
34AQI
10th February 2025
25AQI
25AQI
11th February 2025
35AQI
35AQI
12th February 2025
52AQI
52AQI
13th February 2025
30AQI
30AQI
14th February 2025
28AQI
28AQI
15th February 2025
36AQI
36AQI
16th February 2025
33AQI
33AQI
17th February 2025
20AQI
20AQI
18th February 2025
21AQI
21AQI
19th February 2025
21AQI
21AQI
20th February 2025
21AQI
21AQI
21st February 2025
24AQI
24AQI
22nd February 2025
44AQI
44AQI
23rd February 2025
43AQI
43AQI
24th February 2025
34AQI
34AQI
25th February 2025
30AQI
30AQI
26th February 2025
29AQI
29AQI
27th February 2025
29AQI
29AQI
28th February 2025
24AQI
24AQI
1st March 2025
24AQI
24AQI
2nd March 2025
28AQI
28AQI
3rd March 2025
32AQI
32AQI
4th March 2025
38AQI
38AQI
5th March 2025
25AQI
25AQI
6th March 2025
26AQI
26AQI
7th March 2025
25AQI
25AQI
8th March 2025
30AQI
30AQI
9th March 2025
31AQI
31AQI
10th March 2025
32AQI
32AQI
11th March 2025
34AQI
34AQI
12th March 2025
38AQI
38AQI
13th March 2025
56AQI
56AQI
14th March 2025
48AQI
48AQI
15th March 2025
79AQI
79AQI
16th March 2025
22AQI
22AQI
17th March 2025
22AQI
22AQI
18th March 2025
25AQI
25AQI
19th March 2025
27AQI
27AQI
20th March 2025
18AQI
18AQI
21st March 2025
25AQI
25AQI
22nd March 2025
21AQI
21AQI
23rd March 2025
22AQI
22AQI
24th March 2025
20AQI
20AQI
25th March 2025
20AQI
20AQI
26th March 2025
26AQI
26AQI
27th March 2025
35AQI
35AQI
28th March 2025
33AQI
33AQI
29th March 2025
39AQI
39AQI
30th March 2025
26AQI
26AQI
31st March 2025
17AQI
17AQI
1st April 2025
28AQI
28AQI
2nd April 2025
33AQI
33AQI
3rd April 2025
21AQI
21AQI
4th April 2025
33AQI
33AQI
5th April 2025
25AQI
25AQI
6th April 2025
21AQI
21AQI
7th April 2025
25AQI
25AQI
8th April 2025
20AQI
20AQI
9th April 2025
23AQI
23AQI
10th April 2025
31AQI
31AQI
11th April 2025
41AQI
41AQI
12th April 2025
40AQI
40AQI
13th April 2025
38AQI
38AQI
14th April 2025
32AQI
32AQI
15th April 2025
21AQI
21AQI
16th April 2025
27AQI
27AQI
17th April 2025
41AQI
41AQI
18th April 2025
55AQI
55AQI
19th April 2025
47AQI
47AQI
20th April 2025
38AQI
38AQI
21st April 2025
19AQI
19AQI
22nd April 2025
26AQI
26AQI
23rd April 2025
28AQI
28AQI
24th April 2025
34AQI
34AQI
25th April 2025
39AQI
39AQI
26th April 2025
22AQI
22AQI
27th April 2025
19AQI
19AQI
28th April 2025
33AQI
33AQI
29th April 2025
31AQI
31AQI
30th April 2025
29AQI
29AQI
1st May 2025
27AQI
27AQI
2nd May 2025
22AQI
22AQI
3rd May 2025
21AQI
21AQI
4th May 2025
17AQI
17AQI
5th May 2025
21AQI
21AQI
6th May 2025
25AQI
25AQI
7th May 2025
26AQI
26AQI
8th May 2025
28AQI
28AQI
9th May 2025
25AQI
25AQI
10th May 2025
33AQI
33AQI
11th May 2025
28AQI
28AQI
12th May 2025
34AQI
34AQI
13th May 2025
24AQI
24AQI
14th May 2025
34AQI
34AQI
15th May 2025
52AQI
52AQI
16th May 2025
29AQI
29AQI
17th May 2025
21AQI
21AQI
18th May 2025
19AQI
19AQI
19th May 2025
25AQI
25AQI
20th May 2025
24AQI
24AQI
21st May 2025
15AQI
15AQI
22nd May 2025
14AQI
14AQI
23rd May 2025
17AQI
17AQI
24th May 2025
26AQI
26AQI
25th May 2025
29AQI
29AQI
26th May 2025
18AQI
18AQI
27th May 2025
19AQI
19AQI
28th May 2025
25AQI
25AQI
29th May 2025
36AQI
36AQI
30th May 2025
30AQI
30AQI
31st May 2025
45AQI
45AQI
1st June 2025
31AQI
31AQI
2nd June 2025
45AQI
45AQI
3rd June 2025
56AQI
56AQI
4th June 2025
35AQI
35AQI
5th June 2025
48AQI
48AQI
6th June 2025
62AQI
62AQI
7th June 2025
68AQI
68AQI
8th June 2025
60AQI
60AQI
9th June 2025
60AQI
60AQI
10th June 2025
56AQI
56AQI
11th June 2025
66AQI
66AQI
12th June 2025
77AQI
77AQI
13th June 2025
70AQI
70AQI
14th June 2025
54AQI
54AQI
15th June 2025
47AQI
47AQI
16th June 2025
43AQI
43AQI
17th June 2025
31AQI
31AQI
18th June 2025
31AQI
31AQI
19th June 2025
23AQI
23AQI
20th June 2025
35AQI
35AQI
21st June 2025
44AQI
44AQI
22nd June 2025
48AQI
48AQI
23rd June 2025
56AQI
56AQI
24th June 2025
53AQI
53AQI
25th June 2025
50AQI
50AQI
26th June 2025
53AQI
53AQI
27th June 2025
34AQI
34AQI
28th June 2025
29AQI
29AQI
29th June 2025
30AQI
30AQI
30th June 2025
27AQI
27AQI
1st July 2025
29AQI
29AQI
2nd July 2025
41AQI
41AQI
3rd July 2025
49AQI
49AQI
4th July 2025
56AQI
56AQI
5th July 2025
67AQI
67AQI
6th July 2025
56AQI
56AQI
7th July 2025
42AQI
42AQI
8th July 2025
64AQI
64AQI
9th July 2025
39AQI
39AQI
10th July 2025
40AQI
40AQI
11th July 2025
45AQI
45AQI
12th July 2025
31AQI
31AQI
13th July 2025
42AQI
42AQI
14th July 2025
42AQI
42AQI
15th July 2025
43AQI
43AQI
16th July 2025
32AQI
32AQI
17th July 2025
27AQI
27AQI
18th July 2025
28AQI
28AQI
19th July 2025
36AQI
36AQI
20th July 2025
40AQI
40AQI
21st July 2025
27AQI
27AQI
22nd July 2025
34AQI
34AQI
23rd July 2025
50AQI
50AQI
24th July 2025
53AQI
53AQI
25th July 2025
36AQI
36AQI
26th July 2025
37AQI
37AQI
27th July 2025
25AQI
25AQI
28th July 2025
33AQI
33AQI
29th July 2025
32AQI
32AQI
30th July 2025
36AQI
36AQI
31st July 2025
51AQI
51AQI
1st August 2025
111AQI
111AQI
2nd August 2025
81AQI
81AQI
3rd August 2025
54AQI
54AQI
4th August 2025
49AQI
49AQI
5th August 2025
55AQI
55AQI
6th August 2025
60AQI
60AQI
7th August 2025
54AQI
54AQI
8th August 2025
54AQI
54AQI
9th August 2025
54AQI
54AQI
10th August 2025
49AQI
49AQI
11th August 2025
48AQI
48AQI
12th August 2025
43AQI
43AQI
13th August 2025
45AQI
45AQI
14th August 2025
58AQI
58AQI
15th August 2025
59AQI
59AQI
16th August 2025
55AQI
55AQI
17th August 2025
50AQI
50AQI
18th August 2025
48AQI
48AQI
19th August 2025
43AQI
43AQI
20th August 2025
24AQI
24AQI
21st August 2025
20AQI
20AQI
22nd August 2025
31AQI
31AQI
23rd August 2025
39AQI
39AQI
24th August 2025
26AQI
26AQI
25th August 2025
21AQI
21AQI
26th August 2025
26AQI
26AQI
27th August 2025
33AQI
33AQI
28th August 2025
34AQI
34AQI
29th August 2025
37AQI
37AQI
30th August 2025
30AQI
30AQI
31st August 2025
30AQI
30AQI
1st September 2025
30AQI
30AQI
2nd September 2025
29AQI
29AQI
3rd September 2025
37AQI
37AQI
4th September 2025
62AQI
62AQI
5th September 2025
51AQI
51AQI
6th September 2025
27AQI
27AQI
7th September 2025
29AQI
29AQI
8th September 2025
26AQI
26AQI
9th September 2025
31AQI
31AQI
10th September 2025
44AQI
44AQI
11th September 2025
56AQI
56AQI
12th September 2025
58AQI
58AQI
13th September 2025
59AQI
59AQI
14th September 2025
57AQI
57AQI
15th September 2025
56AQI
56AQI
16th September 2025
54AQI
54AQI
17th September 2025
53AQI
53AQI
18th September 2025
53AQI
53AQI
19th September 2025
44AQI
44AQI
20th September 2025
52AQI
52AQI
21st September 2025
41AQI
41AQI
22nd September 2025
33AQI
33AQI
23rd September 2025
39AQI
39AQI
24th September 2025
33AQI
33AQI
25th September 2025
25AQI
25AQI
26th September 2025
31AQI
31AQI
27th September 2025
41AQI
41AQI
28th September 2025
46AQI
46AQI
29th September 2025
47AQI
47AQI
30th September 2025
30AQI
30AQI
1st October 2025
46AQI
46AQI
2nd October 2025
52AQI
52AQI
3rd October 2025
51AQI
51AQI
4th October 2025
59AQI
59AQI
5th October 2025
48AQI
48AQI
6th October 2025
47AQI
47AQI
7th October 2025
28AQI
28AQI
8th October 2025
31AQI
31AQI
9th October 2025
39AQI
39AQI
10th October 2025
51AQI
51AQI
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
26AQI
30AQI
30AQI
31AQI
26AQI
47AQI
41AQI
46AQI
42AQI
45AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202536AQI
30
1
27
1
29
2
29
1
30
1
17
13
25
6
20
10
1
19
11
6
4
232
50
1
Highest AQI recorded in
June47AQI
Lowest AQI recorded in
January26AQI
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
August38AQI
Lowest AQI recorded in
April20AQI
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
June68AQI
Lowest AQI recorded in
December29AQI
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
August49AQI
Lowest AQI recorded in
April29AQI
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
July46AQI
Lowest AQI recorded in
October27AQI
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
December39AQI
Lowest AQI recorded in
May21AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
39AQILeast Polluted Year Recorded
2024(Avg.)
29AQISpringfield's annual 2025 AQI (36) shows an average percentage change of 5.1% (worsened AQI) compared to previous years: 2020 (32), 2021 (35), 2022 (37), 2023 (39), 2024 (29).
