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HistoryAQIPM2.5PM10COSO2NO2O3

Fairfield, Iowa, 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

Fairfield, Iowa, United States

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
1st Aug 2025
122AQI
Lowest AQI recorded on
13th Aug 2021
20AQI

Same Day Analysis (5th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 49 of Good air quality on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 5th Aug - 6th Aug 2025

Fairfield, Iowa, United States

AQI
Day
Night
.

5 AM5th Aug 2025

8 PM

4 AM6th Aug 2025

Day time
Avg. Highest Time
5PM5th Aug

37AQI

Avg. Lowest Time
12PM5th Aug

31AQI

Night time
Avg. Highest Time
10PM5th Aug

39AQI

Avg. Lowest Time
5AM5th Aug

33AQI

In the last 24 hours,

Fairfield's AQI reached its highest point of 39 at 10 PM during the Night, while the lowest point, 31, was recorded at 12 PM during the Day between 5th Aug and 6th Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Fairfield, Iowa, United States

JulAug
07th - 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 - 06th06th
Day
Night
7th Jul 2025445 AMAQI
7th Jul 2025436 AMAQI
7th Jul 2025447 AMAQI
7th Jul 2025448 AMAQI
7th Jul 2025449 AMAQI
7th Jul 20254210 AMAQI
7th Jul 20254011 AMAQI
7th Jul 20253812 PMAQI
7th Jul 2025431 PMAQI
7th Jul 2025442 PMAQI
7th Jul 2025463 PMAQI
7th Jul 2025444 PMAQI
7th Jul 2025445 PMAQI
7th Jul 2025446 PMAQI
7th Jul 2025447 PMAQI
7th Jul 2025438 PMAQI
7th Jul 2025439 PMAQI
7th Jul 20254310 PMAQI
7th Jul 20254311 PMAQI
8th Jul 20254412 AMAQI
8th Jul 2025441 AMAQI
8th Jul 2025432 AMAQI
8th Jul 2025413 AMAQI
8th Jul 2025454 AMAQI

25°C20/31°C

8th Jul 2025445 AMAQI
8th Jul 2025436 AMAQI
8th Jul 2025437 AMAQI
8th Jul 2025428 AMAQI
8th Jul 2025439 AMAQI
8th Jul 20254010 AMAQI
8th Jul 20254011 AMAQI
8th Jul 20254112 PMAQI
8th Jul 2025391 PMAQI
8th Jul 2025382 PMAQI
8th Jul 2025413 PMAQI
8th Jul 2025414 PMAQI
8th Jul 2025425 PMAQI
8th Jul 2025406 PMAQI
8th Jul 2025417 PMAQI
8th Jul 2025418 PMAQI
8th Jul 2025419 PMAQI
8th Jul 20254010 PMAQI
8th Jul 20254011 PMAQI
9th Jul 20254012 AMAQI
9th Jul 2025401 AMAQI
9th Jul 2025382 AMAQI
9th Jul 2025323 AMAQI
9th Jul 2025314 AMAQI

24°C20/29°C

9th Jul 2025335 AMAQI
9th Jul 2025306 AMAQI
9th Jul 2025337 AMAQI
9th Jul 2025318 AMAQI
9th Jul 2025329 AMAQI
9th Jul 20253110 AMAQI
9th Jul 20253111 AMAQI
9th Jul 20253012 PMAQI
9th Jul 2025311 PMAQI
9th Jul 2025332 PMAQI
9th Jul 2025363 PMAQI
9th Jul 2025354 PMAQI
9th Jul 2025355 PMAQI
9th Jul 2025376 PMAQI
9th Jul 2025347 PMAQI
9th Jul 2025348 PMAQI
9th Jul 2025339 PMAQI
9th Jul 20253310 PMAQI
9th Jul 20253111 PMAQI
10th Jul 20253112 AMAQI
10th Jul 2025321 AMAQI
10th Jul 2025292 AMAQI
10th Jul 2025293 AMAQI
10th Jul 2025324 AMAQI

25°C17/33°C

10th Jul 2025305 AMAQI
10th Jul 2025296 AMAQI
10th Jul 2025287 AMAQI
10th Jul 2025278 AMAQI
10th Jul 2025279 AMAQI
10th Jul 20252910 AMAQI
10th Jul 20253011 AMAQI
10th Jul 20252912 PMAQI
10th Jul 2025291 PMAQI
10th Jul 2025312 PMAQI
10th Jul 2025323 PMAQI
10th Jul 2025344 PMAQI
10th Jul 2025355 PMAQI
10th Jul 2025366 PMAQI
10th Jul 2025327 PMAQI
10th Jul 2025318 PMAQI
10th Jul 2025359 PMAQI
10th Jul 20253510 PMAQI
10th Jul 20253611 PMAQI
11th Jul 20253512 AMAQI
11th Jul 2025361 AMAQI
11th Jul 2025332 AMAQI
11th Jul 2025343 AMAQI
11th Jul 2025374 AMAQI

27°C20/34°C

11th Jul 2025365 AMAQI
11th Jul 2025366 AMAQI
11th Jul 2025377 AMAQI
11th Jul 2025378 AMAQI
11th Jul 2025379 AMAQI
11th Jul 20253610 AMAQI
11th Jul 20253811 AMAQI
11th Jul 20253912 PMAQI
11th Jul 2025391 PMAQI
11th Jul 2025412 PMAQI
11th Jul 2025403 PMAQI
11th Jul 2025404 PMAQI
11th Jul 2025405 PMAQI
11th Jul 2025406 PMAQI
11th Jul 2025387 PMAQI
11th Jul 2025388 PMAQI
11th Jul 2025419 PMAQI
11th Jul 20253910 PMAQI
11th Jul 20253811 PMAQI
12th Jul 20253912 AMAQI
12th Jul 2025391 AMAQI
12th Jul 2025382 AMAQI
12th Jul 2025373 AMAQI
12th Jul 2025344 AMAQI

26°C22/33°C

12th Jul 2025365 AMAQI
12th Jul 2025376 AMAQI
12th Jul 2025407 AMAQI
12th Jul 2025348 AMAQI
12th Jul 2025339 AMAQI
12th Jul 20253410 AMAQI
12th Jul 20253511 AMAQI
12th Jul 20253312 PMAQI
12th Jul 2025341 PMAQI
12th Jul 2025352 PMAQI
12th Jul 2025393 PMAQI
12th Jul 2025424 PMAQI
12th Jul 2025415 PMAQI
12th Jul 2025416 PMAQI
12th Jul 2025407 PMAQI
12th Jul 2025388 PMAQI
12th Jul 2025419 PMAQI
12th Jul 20254110 PMAQI
12th Jul 20254211 PMAQI
13th Jul 20254412 AMAQI
13th Jul 2025431 AMAQI
13th Jul 2025422 AMAQI
13th Jul 2025393 AMAQI
13th Jul 2025374 AMAQI

24°C19/30°C

13th Jul 2025375 AMAQI
13th Jul 2025386 AMAQI
13th Jul 2025397 AMAQI
13th Jul 2025378 AMAQI
13th Jul 2025389 AMAQI
13th Jul 20253810 AMAQI
13th Jul 20253811 AMAQI
13th Jul 20253812 PMAQI
13th Jul 2025371 PMAQI
13th Jul 2025372 PMAQI
13th Jul 2025393 PMAQI
13th Jul 2025394 PMAQI
13th Jul 2025395 PMAQI
13th Jul 2025396 PMAQI
13th Jul 2025407 PMAQI
13th Jul 2025398 PMAQI
13th Jul 2025399 PMAQI
13th Jul 20253910 PMAQI
13th Jul 20254011 PMAQI
14th Jul 20254012 AMAQI
14th Jul 2025401 AMAQI
14th Jul 2025402 AMAQI
14th Jul 2025383 AMAQI
14th Jul 2025334 AMAQI

23°C18/28°C

14th Jul 2025315 AMAQI
14th Jul 2025286 AMAQI
14th Jul 2025277 AMAQI
14th Jul 2025268 AMAQI
14th Jul 2025289 AMAQI
14th Jul 20252610 AMAQI
14th Jul 20252911 AMAQI
14th Jul 20253012 PMAQI
14th Jul 2025341 PMAQI
14th Jul 2025372 PMAQI
14th Jul 2025393 PMAQI
14th Jul 2025384 PMAQI
14th Jul 2025395 PMAQI
14th Jul 2025386 PMAQI
14th Jul 2025377 PMAQI
14th Jul 2025368 PMAQI
14th Jul 2025359 PMAQI
14th Jul 20253410 PMAQI
14th Jul 20253511 PMAQI
15th Jul 20253412 AMAQI
15th Jul 2025341 AMAQI
15th Jul 2025332 AMAQI
15th Jul 2025403 AMAQI
15th Jul 2025434 AMAQI

24°C18/30°C

15th Jul 2025435 AMAQI
15th Jul 2025426 AMAQI
15th Jul 2025387 AMAQI
15th Jul 2025368 AMAQI
15th Jul 2025359 AMAQI
15th Jul 20253410 AMAQI
15th Jul 20253311 AMAQI
15th Jul 20253312 PMAQI
15th Jul 2025331 PMAQI
15th Jul 2025342 PMAQI
15th Jul 2025363 PMAQI
15th Jul 2025364 PMAQI
15th Jul 2025365 PMAQI
15th Jul 2025366 PMAQI
15th Jul 2025377 PMAQI
15th Jul 2025388 PMAQI
15th Jul 2025399 PMAQI
15th Jul 20254010 PMAQI
15th Jul 20254011 PMAQI
16th Jul 20254012 AMAQI
16th Jul 2025401 AMAQI
16th Jul 2025392 AMAQI
16th Jul 2025363 AMAQI
16th Jul 2025344 AMAQI

26°C19/32°C

16th Jul 2025325 AMAQI
16th Jul 2025336 AMAQI
16th Jul 2025337 AMAQI
16th Jul 2025328 AMAQI
16th Jul 2025319 AMAQI
16th Jul 20253310 AMAQI
16th Jul 20253611 AMAQI
16th Jul 20253312 PMAQI
16th Jul 2025321 PMAQI
16th Jul 2025302 PMAQI
16th Jul 2025323 PMAQI
16th Jul 2025334 PMAQI
16th Jul 2025335 PMAQI
16th Jul 2025326 PMAQI
16th Jul 2025357 PMAQI
16th Jul 2025348 PMAQI
16th Jul 2025329 PMAQI
16th Jul 20253110 PMAQI
16th Jul 20252911 PMAQI
17th Jul 20252812 AMAQI
17th Jul 2025291 AMAQI
17th Jul 2025272 AMAQI
17th Jul 2025273 AMAQI
17th Jul 2025304 AMAQI

26°C22/31°C

17th Jul 2025355 AMAQI
17th Jul 2025316 AMAQI
17th Jul 2025247 AMAQI
17th Jul 2025238 AMAQI
17th Jul 2025239 AMAQI
17th Jul 20252310 AMAQI
17th Jul 20252311 AMAQI
17th Jul 20252312 PMAQI
17th Jul 2025221 PMAQI
17th Jul 2025232 PMAQI
17th Jul 2025243 PMAQI
17th Jul 2025254 PMAQI
17th Jul 2025255 PMAQI
17th Jul 2025236 PMAQI
17th Jul 2025247 PMAQI
17th Jul 2025248 PMAQI
17th Jul 2025249 PMAQI
17th Jul 20252410 PMAQI
17th Jul 20252411 PMAQI
18th Jul 20252412 AMAQI
18th Jul 2025221 AMAQI
18th Jul 2025222 AMAQI
18th Jul 2025213 AMAQI
18th Jul 2025204 AMAQI

21°C18/25°C

18th Jul 2025225 AMAQI
18th Jul 2025226 AMAQI
18th Jul 2025227 AMAQI
18th Jul 2025258 AMAQI
18th Jul 2025259 AMAQI
18th Jul 20252710 AMAQI
18th Jul 20252611 AMAQI
18th Jul 20252412 PMAQI
18th Jul 2025241 PMAQI
18th Jul 2025242 PMAQI
18th Jul 2025243 PMAQI
18th Jul 2025244 PMAQI
18th Jul 2025245 PMAQI
18th Jul 2025236 PMAQI
18th Jul 2025227 PMAQI
18th Jul 2025228 PMAQI
18th Jul 2025239 PMAQI
18th Jul 20252410 PMAQI
18th Jul 20252411 PMAQI
19th Jul 20252512 AMAQI
19th Jul 2025261 AMAQI
19th Jul 2025242 AMAQI
19th Jul 2025273 AMAQI
19th Jul 2025284 AMAQI

24°C19/29°C

19th Jul 2025285 AMAQI
19th Jul 2025316 AMAQI
19th Jul 2025307 AMAQI
19th Jul 2025318 AMAQI
19th Jul 2025309 AMAQI
19th Jul 20253110 AMAQI
19th Jul 20252911 AMAQI
19th Jul 20252712 PMAQI
19th Jul 2025271 PMAQI
19th Jul 2025272 PMAQI
19th Jul 2025283 PMAQI
19th Jul 2025284 PMAQI
19th Jul 2025285 PMAQI
19th Jul 2025286 PMAQI
19th Jul 2025287 PMAQI
19th Jul 2025288 PMAQI
19th Jul 2025299 PMAQI
19th Jul 20253010 PMAQI
19th Jul 20253111 PMAQI
20th Jul 20253112 AMAQI
20th Jul 2025311 AMAQI
20th Jul 2025322 AMAQI
20th Jul 2025323 AMAQI
20th Jul 2025324 AMAQI

27°C22/33°C

20th Jul 2025295 AMAQI
20th Jul 2025296 AMAQI
20th Jul 2025277 AMAQI
20th Jul 2025248 AMAQI
20th Jul 2025239 AMAQI
20th Jul 20252310 AMAQI
20th Jul 20252511 AMAQI
20th Jul 20252712 PMAQI
20th Jul 2025281 PMAQI
20th Jul 2025292 PMAQI
20th Jul 2025293 PMAQI
20th Jul 2025304 PMAQI
20th Jul 2025305 PMAQI
20th Jul 2025306 PMAQI
20th Jul 2025317 PMAQI
20th Jul 2025318 PMAQI
20th Jul 2025339 PMAQI
20th Jul 20253210 PMAQI
20th Jul 20253311 PMAQI
21st Jul 20253412 AMAQI
21st Jul 2025341 AMAQI
21st Jul 2025352 AMAQI
21st Jul 2025353 AMAQI
21st Jul 2025344 AMAQI

26°C22/29°C

21st Jul 2025345 AMAQI
21st Jul 2025366 AMAQI
21st Jul 2025357 AMAQI
21st Jul 2025348 AMAQI
21st Jul 2025339 AMAQI
21st Jul 20253410 AMAQI
21st Jul 20253611 AMAQI
21st Jul 20253212 PMAQI
21st Jul 2025311 PMAQI
21st Jul 2025312 PMAQI
21st Jul 2025343 PMAQI
21st Jul 2025334 PMAQI
21st Jul 2025325 PMAQI
21st Jul 2025326 PMAQI
21st Jul 2025337 PMAQI
21st Jul 2025338 PMAQI
21st Jul 2025329 PMAQI
21st Jul 20253210 PMAQI
21st Jul 20253111 PMAQI
22nd Jul 20253112 AMAQI
22nd Jul 2025301 AMAQI
22nd Jul 2025292 AMAQI
22nd Jul 2025303 AMAQI
22nd Jul 2025294 AMAQI

26°C23/30°C

22nd Jul 2025275 AMAQI
22nd Jul 2025296 AMAQI
22nd Jul 2025317 AMAQI
22nd Jul 2025338 AMAQI
22nd Jul 2025319 AMAQI
22nd Jul 20253110 AMAQI
22nd Jul 20253311 AMAQI
22nd Jul 20253112 PMAQI
22nd Jul 2025311 PMAQI
22nd Jul 2025352 PMAQI
22nd Jul 2025343 PMAQI
22nd Jul 2025344 PMAQI
22nd Jul 2025355 PMAQI
22nd Jul 2025346 PMAQI
22nd Jul 2025317 PMAQI
22nd Jul 2025328 PMAQI
22nd Jul 2025349 PMAQI
22nd Jul 20253510 PMAQI
22nd Jul 20253511 PMAQI
23rd Jul 20253512 AMAQI
23rd Jul 2025371 AMAQI
23rd Jul 2025362 AMAQI
23rd Jul 2025373 AMAQI
23rd Jul 2025384 AMAQI

29°C21/35°C

23rd Jul 2025375 AMAQI
23rd Jul 2025366 AMAQI
23rd Jul 2025377 AMAQI
23rd Jul 2025378 AMAQI
23rd Jul 2025389 AMAQI
23rd Jul 20253610 AMAQI
23rd Jul 20253611 AMAQI
23rd Jul 20253612 PMAQI
23rd Jul 2025361 PMAQI
23rd Jul 2025362 PMAQI
23rd Jul 2025373 PMAQI
23rd Jul 2025374 PMAQI
23rd Jul 2025375 PMAQI
23rd Jul 2025366 PMAQI
23rd Jul 2025377 PMAQI
23rd Jul 2025378 PMAQI
23rd Jul 2025359 PMAQI
23rd Jul 20253510 PMAQI
23rd Jul 20253511 PMAQI
24th Jul 20253512 AMAQI
24th Jul 2025351 AMAQI
24th Jul 2025322 AMAQI
24th Jul 2025293 AMAQI
24th Jul 2025284 AMAQI

29°C24/35°C

24th Jul 2025305 AMAQI
24th Jul 2025346 AMAQI
24th Jul 2025337 AMAQI
24th Jul 2025298 AMAQI
24th Jul 2025289 AMAQI
24th Jul 20252810 AMAQI
24th Jul 20252811 AMAQI
24th Jul 20252712 PMAQI
24th Jul 2025261 PMAQI
24th Jul 2025282 PMAQI
24th Jul 2025283 PMAQI
24th Jul 2025284 PMAQI
24th Jul 2025275 PMAQI
24th Jul 2025276 PMAQI
24th Jul 2025287 PMAQI
24th Jul 2025288 PMAQI
24th Jul 2025289 PMAQI
24th Jul 20252710 PMAQI
24th Jul 20252811 PMAQI
25th Jul 20252812 AMAQI
25th Jul 2025281 AMAQI
25th Jul 2025242 AMAQI
25th Jul 2025213 AMAQI
25th Jul 2025194 AMAQI

26°C22/31°C

25th Jul 2025195 AMAQI
25th Jul 2025196 AMAQI
25th Jul 2025207 AMAQI
25th Jul 2025238 AMAQI
25th Jul 2025229 AMAQI
25th Jul 20252110 AMAQI
25th Jul 20252111 AMAQI
25th Jul 20252112 PMAQI
25th Jul 2025221 PMAQI
25th Jul 2025212 PMAQI
25th Jul 2025223 PMAQI
25th Jul 2025224 PMAQI
25th Jul 2025215 PMAQI
25th Jul 2025216 PMAQI
25th Jul 2025227 PMAQI
25th Jul 2025228 PMAQI
25th Jul 2025229 PMAQI
25th Jul 20252210 PMAQI
25th Jul 20252211 PMAQI
26th Jul 20252112 AMAQI
26th Jul 2025201 AMAQI
26th Jul 2025192 AMAQI
26th Jul 2025203 AMAQI
26th Jul 2025194 AMAQI

25°C22/29°C

26th Jul 2025185 AMAQI
26th Jul 2025206 AMAQI
26th Jul 2025197 AMAQI
26th Jul 2025198 AMAQI
26th Jul 2025209 AMAQI
26th Jul 20252210 AMAQI
26th Jul 20252111 AMAQI
26th Jul 20252012 PMAQI
26th Jul 2025201 PMAQI
26th Jul 2025192 PMAQI
26th Jul 2025203 PMAQI
26th Jul 2025194 PMAQI
26th Jul 2025195 PMAQI
26th Jul 2025196 PMAQI
26th Jul 2025207 PMAQI
26th Jul 2025208 PMAQI
26th Jul 2025229 PMAQI
26th Jul 20252210 PMAQI
26th Jul 20252311 PMAQI
27th Jul 20252312 AMAQI
27th Jul 2025221 AMAQI
27th Jul 2025202 AMAQI
27th Jul 2025193 AMAQI
27th Jul 2025194 AMAQI

26°C23/30°C

27th Jul 2025185 AMAQI
27th Jul 2025206 AMAQI
27th Jul 2025207 AMAQI
27th Jul 2025208 AMAQI
27th Jul 2025219 AMAQI
27th Jul 20252310 AMAQI
27th Jul 20252411 AMAQI
27th Jul 20252412 PMAQI
27th Jul 2025231 PMAQI
27th Jul 2025242 PMAQI
27th Jul 2025233 PMAQI
27th Jul 2025234 PMAQI
27th Jul 2025235 PMAQI
27th Jul 2025236 PMAQI
27th Jul 2025227 PMAQI
27th Jul 2025228 PMAQI
27th Jul 2025259 PMAQI
27th Jul 20252410 PMAQI
27th Jul 20252411 PMAQI
28th Jul 20252412 AMAQI
28th Jul 2025231 AMAQI
28th Jul 2025242 AMAQI
28th Jul 2025253 AMAQI
28th Jul 2025284 AMAQI

28°C22/33°C

28th Jul 2025295 AMAQI
28th Jul 2025296 AMAQI
28th Jul 2025287 AMAQI
28th Jul 2025268 AMAQI
28th Jul 2025259 AMAQI
28th Jul 20252510 AMAQI
28th Jul 20252611 AMAQI
28th Jul 20252612 PMAQI
28th Jul 2025271 PMAQI
28th Jul 2025262 PMAQI
28th Jul 2025273 PMAQI
28th Jul 2025274 PMAQI
28th Jul 2025285 PMAQI
28th Jul 2025286 PMAQI
28th Jul 2025277 PMAQI
28th Jul 2025268 PMAQI
28th Jul 2025279 PMAQI
28th Jul 20252810 PMAQI
28th Jul 20252811 PMAQI
29th Jul 20252912 AMAQI
29th Jul 2025291 AMAQI
29th Jul 2025302 AMAQI
29th Jul 2025303 AMAQI
29th Jul 2025304 AMAQI

29°C22/35°C

29th Jul 2025305 AMAQI
29th Jul 2025316 AMAQI
29th Jul 2025327 AMAQI
29th Jul 2025318 AMAQI
29th Jul 2025319 AMAQI
29th Jul 20253110 AMAQI
29th Jul 20253011 AMAQI
29th Jul 20253212 PMAQI
29th Jul 2025321 PMAQI
29th Jul 2025322 PMAQI
29th Jul 2025323 PMAQI
29th Jul 2025324 PMAQI
29th Jul 2025335 PMAQI
29th Jul 2025356 PMAQI
29th Jul 2025337 PMAQI
29th Jul 2025318 PMAQI
29th Jul 2025349 PMAQI
29th Jul 20253410 PMAQI
29th Jul 20253411 PMAQI
30th Jul 20253412 AMAQI
30th Jul 2025341 AMAQI
30th Jul 2025322 AMAQI
30th Jul 2025323 AMAQI
30th Jul 2025334 AMAQI

30°C24/35°C

30th Jul 2025345 AMAQI
30th Jul 2025336 AMAQI
30th Jul 2025347 AMAQI
30th Jul 2025348 AMAQI
30th Jul 2025309 AMAQI
30th Jul 20252810 AMAQI
30th Jul 20252811 AMAQI
30th Jul 20252712 PMAQI
30th Jul 2025291 PMAQI
30th Jul 2025322 PMAQI
30th Jul 2025333 PMAQI
30th Jul 2025334 PMAQI
30th Jul 2025335 PMAQI
30th Jul 2025336 PMAQI
30th Jul 2025337 PMAQI
30th Jul 2025338 PMAQI
30th Jul 2025339 PMAQI
30th Jul 20253310 PMAQI
30th Jul 20253411 PMAQI
31st Jul 20253312 AMAQI
31st Jul 2025321 AMAQI
31st Jul 2025302 AMAQI
31st Jul 2025293 AMAQI
31st Jul 2025264 AMAQI

25°C19/29°C

31st Jul 2025305 AMAQI
31st Jul 2025346 AMAQI
31st Jul 2025427 AMAQI
31st Jul 2025438 AMAQI
31st Jul 2025469 AMAQI
31st Jul 20254810 AMAQI
31st Jul 20255311 AMAQI
31st Jul 20255412 PMAQI
31st Jul 2025591 PMAQI
31st Jul 2025602 PMAQI
31st Jul 2025573 PMAQI
31st Jul 2025494 PMAQI
31st Jul 2025475 PMAQI
31st Jul 2025446 PMAQI
31st Jul 2025477 PMAQI
31st Jul 2025488 PMAQI
31st Jul 2025499 PMAQI
31st Jul 20255510 PMAQI
31st Jul 20256411 PMAQI
1st Aug 20256312 AMAQI
1st Aug 2025631 AMAQI
1st Aug 2025662 AMAQI
1st Aug 2025623 AMAQI
1st Aug 2025604 AMAQI

22°C16/27°C

1st Aug 2025655 AMAQI
1st Aug 2025616 AMAQI
1st Aug 2025647 AMAQI
1st Aug 2025628 AMAQI
1st Aug 2025589 AMAQI
1st Aug 20256210 AMAQI
1st Aug 20256111 AMAQI
1st Aug 20255712 PMAQI
1st Aug 2025591 PMAQI
1st Aug 2025612 PMAQI
1st Aug 2025603 PMAQI
1st Aug 2025624 PMAQI
1st Aug 2025585 PMAQI
1st Aug 2025596 PMAQI
1st Aug 2025667 PMAQI
1st Aug 2025618 PMAQI
1st Aug 2025609 PMAQI
1st Aug 20255710 PMAQI
1st Aug 20256111 PMAQI
2nd Aug 20256112 AMAQI
2nd Aug 2025591 AMAQI
2nd Aug 2025562 AMAQI
2nd Aug 2025593 AMAQI
2nd Aug 2025564 AMAQI

19°C13/26°C

2nd Aug 2025555 AMAQI
2nd Aug 2025566 AMAQI
2nd Aug 2025567 AMAQI
2nd Aug 2025568 AMAQI
2nd Aug 2025539 AMAQI
2nd Aug 20255310 AMAQI
2nd Aug 20255211 AMAQI
2nd Aug 20255112 PMAQI
2nd Aug 2025481 PMAQI
2nd Aug 2025462 PMAQI
2nd Aug 2025463 PMAQI
2nd Aug 2025454 PMAQI
2nd Aug 2025445 PMAQI
2nd Aug 2025446 PMAQI
2nd Aug 2025517 PMAQI
2nd Aug 2025498 PMAQI
2nd Aug 2025449 PMAQI
2nd Aug 20254310 PMAQI
2nd Aug 20254511 PMAQI
3rd Aug 20254512 AMAQI
3rd Aug 2025451 AMAQI
3rd Aug 2025452 AMAQI
3rd Aug 2025443 AMAQI
3rd Aug 2025434 AMAQI

21°C15/25°C

3rd Aug 2025435 AMAQI
3rd Aug 2025426 AMAQI
3rd Aug 2025407 AMAQI
3rd Aug 2025408 AMAQI
3rd Aug 2025409 AMAQI
3rd Aug 20253910 AMAQI
3rd Aug 20253811 AMAQI
3rd Aug 20253912 PMAQI
3rd Aug 2025391 PMAQI
3rd Aug 2025412 PMAQI
3rd Aug 2025423 PMAQI
3rd Aug 2025454 PMAQI
3rd Aug 2025455 PMAQI
3rd Aug 2025446 PMAQI
3rd Aug 2025427 PMAQI
3rd Aug 2025438 PMAQI
3rd Aug 2025439 PMAQI
3rd Aug 20254010 PMAQI
3rd Aug 20254111 PMAQI
4th Aug 20254312 AMAQI
4th Aug 2025431 AMAQI
4th Aug 2025432 AMAQI
4th Aug 2025443 AMAQI
4th Aug 2025424 AMAQI

20°C14/25°C

4th Aug 2025405 AMAQI
4th Aug 2025416 AMAQI
4th Aug 2025407 AMAQI
4th Aug 2025408 AMAQI
4th Aug 2025419 AMAQI
4th Aug 20254210 AMAQI
4th Aug 20254211 AMAQI
4th Aug 20254112 PMAQI
4th Aug 2025401 PMAQI
4th Aug 2025382 PMAQI
4th Aug 2025343 PMAQI
4th Aug 2025354 PMAQI
4th Aug 2025355 PMAQI
4th Aug 2025366 PMAQI
4th Aug 2025417 PMAQI
4th Aug 2025368 PMAQI
4th Aug 2025339 PMAQI
4th Aug 20253310 PMAQI
4th Aug 20253411 PMAQI
5th Aug 20253512 AMAQI
5th Aug 2025361 AMAQI
5th Aug 2025342 AMAQI
5th Aug 2025353 AMAQI
5th Aug 2025354 AMAQI

21°C11/26°C

5th Aug 2025335 AMAQI
5th Aug 2025326 AMAQI
5th Aug 2025337 AMAQI
5th Aug 2025328 AMAQI
5th Aug 2025329 AMAQI
5th Aug 20253510 AMAQI
5th Aug 20253211 AMAQI
5th Aug 20253112 PMAQI
5th Aug 2025341 PMAQI
5th Aug 2025332 PMAQI
5th Aug 2025363 PMAQI
5th Aug 2025364 PMAQI
5th Aug 2025375 PMAQI
5th Aug 2025376 PMAQI
5th Aug 2025347 PMAQI
5th Aug 2025368 PMAQI
5th Aug 2025369 PMAQI
5th Aug 20253910 PMAQI
5th Aug 20253811 PMAQI
6th Aug 20253712 AMAQI
6th Aug 2025371 AMAQI
6th Aug 2025382 AMAQI
6th Aug 2025373 AMAQI
6th Aug 2025384 AMAQI

22°C16/28°C

6th Aug 2025385 AMAQI
5 AM
6th Aug 2025376 AMAQI
6th Aug 2025397 AMAQI
6th Aug 2025398 AMAQI
6th Aug 2025409 AMAQI
6th Aug 20253910 AMAQI
6th Aug 20253811 AMAQI
6th Aug 20253812 PMAQI
12 PM
6th Aug 2025381 PMAQI
8 PM
12 AM
4 AM

--°C/°C

Day time
Avg. Highest Time
5 AM - 8 PM

34AQI

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

34AQI

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. 34), while the lowest AQI was between 5 AM to 8 PM (Avg. 34).
Night time
Avg. Highest Time
12 AM - 11 PM

35AQI

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

35AQI

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. 35), while the lowest AQI was between 12 AM to 11 PM (Avg. 35).

2025 Days Vs Air Quality

Fairfield, Iowa, United States

2025

87%

189

12%

27

0.4%

1

Total number of days with different AQI categories in last 218 days in 2025 (147 days remaining)

Good
189 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 218 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

Fairfield, Iowa, 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
27AQI
2nd January 2025
28AQI
3rd January 2025
28AQI
4th January 2025
22AQI
5th January 2025
23AQI
6th January 2025
22AQI
7th January 2025
30AQI
8th January 2025
27AQI
9th January 2025
48AQI
10th January 2025
37AQI
11th January 2025
28AQI
12th January 2025
31AQI
13th January 2025
28AQI
14th January 2025
29AQI
15th January 2025
30AQI
16th January 2025
29AQI
17th January 2025
24AQI
18th January 2025
20AQI
19th January 2025
21AQI
20th January 2025
24AQI
21st January 2025
23AQI
22nd January 2025
25AQI
23rd January 2025
30AQI
24th January 2025
37AQI
25th January 2025
28AQI
26th January 2025
23AQI
27th January 2025
26AQI
28th January 2025
27AQI
29th January 2025
29AQI
30th January 2025
34AQI
31st January 2025
33AQI
1st February 2025
27AQI
2nd February 2025
31AQI
3rd February 2025
35AQI
4th February 2025
25AQI
5th February 2025
32AQI
6th February 2025
26AQI
7th February 2025
26AQI
8th February 2025
30AQI
9th February 2025
28AQI
10th February 2025
31AQI
11th February 2025
34AQI
12th February 2025
33AQI
13th February 2025
39AQI
14th February 2025
32AQI
15th February 2025
37AQI
16th February 2025
34AQI
17th February 2025
28AQI
18th February 2025
25AQI
19th February 2025
24AQI
20th February 2025
26AQI
21st February 2025
35AQI
22nd February 2025
45AQI
23rd February 2025
45AQI
24th February 2025
34AQI
25th February 2025
22AQI
26th February 2025
28AQI
27th February 2025
30AQI
28th February 2025
29AQI
1st March 2025
29AQI
2nd March 2025
35AQI
3rd March 2025
44AQI
4th March 2025
42AQI
5th March 2025
30AQI
6th March 2025
28AQI
7th March 2025
27AQI
8th March 2025
33AQI
9th March 2025
31AQI
10th March 2025
32AQI
11th March 2025
31AQI
12th March 2025
36AQI
13th March 2025
60AQI
14th March 2025
55AQI
15th March 2025
60AQI
16th March 2025
23AQI
17th March 2025
30AQI
18th March 2025
33AQI
19th March 2025
32AQI
20th March 2025
21AQI
21st March 2025
24AQI
22nd March 2025
29AQI
23rd March 2025
26AQI
24th March 2025
25AQI
25th March 2025
26AQI
26th March 2025
31AQI
27th March 2025
38AQI
28th March 2025
38AQI
29th March 2025
37AQI
30th March 2025
26AQI
31st March 2025
19AQI
1st April 2025
39AQI
2nd April 2025
29AQI
3rd April 2025
22AQI
4th April 2025
31AQI
5th April 2025
31AQI
6th April 2025
25AQI
7th April 2025
29AQI
8th April 2025
26AQI
9th April 2025
36AQI
10th April 2025
47AQI
11th April 2025
48AQI
12th April 2025
49AQI
13th April 2025
45AQI
14th April 2025
31AQI
15th April 2025
24AQI
16th April 2025
44AQI
17th April 2025
45AQI
18th April 2025
53AQI
19th April 2025
31AQI
20th April 2025
35AQI
21st April 2025
19AQI
22nd April 2025
31AQI
23rd April 2025
35AQI
24th April 2025
38AQI
25th April 2025
40AQI
26th April 2025
22AQI
27th April 2025
24AQI
28th April 2025
37AQI
29th April 2025
25AQI
30th April 2025
27AQI
1st May 2025
28AQI
2nd May 2025
21AQI
3rd May 2025
21AQI
4th May 2025
25AQI
5th May 2025
22AQI
6th May 2025
23AQI
7th May 2025
27AQI
8th May 2025
31AQI
9th May 2025
33AQI
10th May 2025
40AQI
11th May 2025
37AQI
12th May 2025
39AQI
13th May 2025
33AQI
14th May 2025
38AQI
15th May 2025
50AQI
16th May 2025
32AQI
17th May 2025
31AQI
18th May 2025
26AQI
19th May 2025
26AQI
20th May 2025
23AQI
21st May 2025
18AQI
22nd May 2025
16AQI
23rd May 2025
21AQI
24th May 2025
27AQI
25th May 2025
32AQI
26th May 2025
23AQI
27th May 2025
24AQI
28th May 2025
28AQI
29th May 2025
32AQI
30th May 2025
38AQI
31st May 2025
43AQI
1st June 2025
48AQI
2nd June 2025
51AQI
3rd June 2025
45AQI
4th June 2025
58AQI
5th June 2025
65AQI
6th June 2025
67AQI
7th June 2025
69AQI
8th June 2025
67AQI
9th June 2025
64AQI
10th June 2025
60AQI
11th June 2025
66AQI
12th June 2025
63AQI
13th June 2025
60AQI
14th June 2025
61AQI
15th June 2025
56AQI
16th June 2025
49AQI
17th June 2025
36AQI
18th June 2025
28AQI
19th June 2025
27AQI
20th June 2025
35AQI
21st June 2025
50AQI
22nd June 2025
52AQI
23rd June 2025
55AQI
24th June 2025
34AQI
25th June 2025
32AQI
26th June 2025
43AQI
27th June 2025
26AQI
28th June 2025
24AQI
29th June 2025
27AQI
30th June 2025
23AQI
1st July 2025
32AQI
2nd July 2025
42AQI
3rd July 2025
41AQI
4th July 2025
49AQI
5th July 2025
58AQI
6th July 2025
39AQI
7th July 2025
48AQI
8th July 2025
48AQI
9th July 2025
34AQI
10th July 2025
33AQI
11th July 2025
39AQI
12th July 2025
36AQI
13th July 2025
51AQI
14th July 2025
48AQI
15th July 2025
58AQI
16th July 2025
38AQI
17th July 2025
25AQI
18th July 2025
22AQI
19th July 2025
30AQI
20th July 2025
29AQI
21st July 2025
29AQI
22nd July 2025
34AQI
23rd July 2025
52AQI
24th July 2025
35AQI
25th July 2025
24AQI
26th July 2025
21AQI
27th July 2025
27AQI
28th July 2025
27AQI
29th July 2025
29AQI
30th July 2025
28AQI
31st July 2025
67AQI
1st August 2025
122AQI
2nd August 2025
96AQI
3rd August 2025
65AQI
4th August 2025
57AQI
5th August 2025
49AQI

28AQI

31AQI

33AQI

34AQI

29AQI

48AQI

38AQI

78AQI

No. of days

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

202535AQI

31
28
28
3
29
1
31
15
15
26
5
1
3
1
189
27
1

Highest AQI recorded in

August

78AQI

Lowest AQI recorded in

January

28AQI

202434AQI

29
2
29
29
2
30
30
1
26
3
28
3
27
4
30
29
2
30
29
2
346
19

Highest AQI recorded in

August

39AQI

Lowest AQI recorded in

November

29AQI

202338AQI

30
1
28
31
27
3
27
4
7
21
1
1
22
8
1
25
6
24
6
31
29
31
312
49
2
1

Highest AQI recorded in

June

63AQI

Lowest AQI recorded in

February

26AQI

202232AQI

27
3
20
2
26
1
29
24
1
27
3
22
2
2
29
31
30
27
4
294
16

Highest AQI recorded in

June

39AQI

Lowest AQI recorded in

January

27AQI

202134AQI

23
7
24
4
29
2
26
4
31
30
17
14
28
3
29
1
30
1
28
2
27
1
322
39

Highest AQI recorded in

July

49AQI

Lowest AQI recorded in

December

27AQI

202032AQI

12
1
16
4
18
30
28
3
31
30
31
29
1
24
7
249
16

Highest AQI recorded in

April

44AQI

Lowest AQI recorded in

September

26AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2023(Avg.)
38AQI
Least Polluted Year Recorded
2020(Avg.)
32AQI

Fairfield's annual 2025 AQI (35) shows an average percentage change of 4.6% (worsened AQI) compared to previous years: 2020 (32), 2021 (34), 2022 (32), 2023 (38), 2024 (34).