Fairfield, California, 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, California, United States
2022
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
31st Aug 2022
67AQILowest AQI recorded on
14th Aug 2025
19AQISame Day Analysis (14th August ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 2nd highest AQI at 19 of Good air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 14th Aug - 15th Aug 2025
Fairfield, California, United States
AQI
Day
Night
.
6 AM14th Aug 2025
8 PM
5 AM15th Aug 2025
Day time
Avg. Highest Time
6PM14th Aug
36AQI
Avg. Lowest Time
8AM14th Aug
30AQI
Night time
Avg. Highest Time
5AM15th Aug
46AQI
Avg. Lowest Time
10PM14th Aug
39AQI
In the last 24 hours,
Fairfield's AQI reached its highest point of 46 at 5 AM during the Night, while the lowest point, 30, was recorded at 8 AM during the Day between 14th Aug and 15th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Fairfield, California, United States
JulAug
16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th
Day
Night
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
17th Jul 2025355 AMAQI
18°C14/26°C
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
18th Jul 2025225 AMAQI
20°C13/30°C
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
19th Jul 2025285 AMAQI
20°C13/31°C
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
20th Jul 2025295 AMAQI
20°C13/31°C
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
21st Jul 2025345 AMAQI
19°C13/29°C
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
22nd Jul 2025275 AMAQI
18°C13/25°C
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
23rd Jul 2025375 AMAQI
18°C14/25°C
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
24th Jul 2025305 AMAQI
19°C13/28°C
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
25th Jul 2025195 AMAQI
19°C12/28°C
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
26th Jul 2025185 AMAQI
19°C13/27°C
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
27th Jul 2025185 AMAQI
18°C14/28°C
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
28th Jul 2025295 AMAQI
19°C14/28°C
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
29th Jul 2025305 AMAQI
21°C13/32°C
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
30th Jul 2025345 AMAQI
20°C13/32°C
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
31st Jul 2025305 AMAQI
19°C13/28°C
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
1st Aug 2025655 AMAQI
22°C14/34°C
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
2nd Aug 2025555 AMAQI
21°C14/31°C
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
3rd Aug 2025435 AMAQI
21°C14/33°C
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
4th Aug 2025405 AMAQI
21°C13/32°C
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
5th Aug 2025335 AMAQI
21°C12/33°C
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
6th Aug 2025385 AMAQI
20°C12/31°C
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
6th Aug 2025361 PMAQI
6th Aug 2025352 PMAQI
6th Aug 2025383 PMAQI
6th Aug 2025424 PMAQI
6th Aug 2025425 PMAQI
6th Aug 2025416 PMAQI
6th Aug 2025387 PMAQI
6th Aug 2025398 PMAQI
6th Aug 2025449 PMAQI
6th Aug 20254010 PMAQI
6th Aug 20254011 PMAQI
7th Aug 20254112 AMAQI
7th Aug 2025401 AMAQI
7th Aug 2025402 AMAQI
7th Aug 2025393 AMAQI
7th Aug 2025404 AMAQI
7th Aug 2025375 AMAQI
24°C13/38°C
7th Aug 2025356 AMAQI
7th Aug 2025367 AMAQI
7th Aug 2025408 AMAQI
7th Aug 2025389 AMAQI
7th Aug 20253610 AMAQI
7th Aug 20253811 AMAQI
7th Aug 20253812 PMAQI
7th Aug 2025371 PMAQI
7th Aug 2025372 PMAQI
7th Aug 2025373 PMAQI
7th Aug 2025374 PMAQI
7th Aug 2025375 PMAQI
7th Aug 2025376 PMAQI
7th Aug 2025387 PMAQI
7th Aug 2025398 PMAQI
7th Aug 2025379 PMAQI
7th Aug 20253710 PMAQI
7th Aug 20253811 PMAQI
8th Aug 20253712 AMAQI
8th Aug 2025371 AMAQI
8th Aug 2025372 AMAQI
8th Aug 2025383 AMAQI
8th Aug 2025384 AMAQI
8th Aug 2025365 AMAQI
24°C15/36°C
8th Aug 2025366 AMAQI
8th Aug 2025397 AMAQI
8th Aug 2025398 AMAQI
8th Aug 2025399 AMAQI
8th Aug 20254010 AMAQI
8th Aug 20253911 AMAQI
8th Aug 20254112 PMAQI
8th Aug 2025411 PMAQI
8th Aug 2025412 PMAQI
8th Aug 2025403 PMAQI
8th Aug 2025424 PMAQI
8th Aug 2025415 PMAQI
8th Aug 2025406 PMAQI
8th Aug 2025407 PMAQI
8th Aug 2025408 PMAQI
8th Aug 2025409 PMAQI
8th Aug 20254110 PMAQI
8th Aug 20254111 PMAQI
9th Aug 20254112 AMAQI
9th Aug 2025411 AMAQI
9th Aug 2025412 AMAQI
9th Aug 2025413 AMAQI
9th Aug 2025394 AMAQI
9th Aug 2025405 AMAQI
25°C13/40°C
9th Aug 2025396 AMAQI
9th Aug 2025407 AMAQI
9th Aug 2025428 AMAQI
9th Aug 2025419 AMAQI
9th Aug 20254110 AMAQI
9th Aug 20254211 AMAQI
9th Aug 20254112 PMAQI
9th Aug 2025411 PMAQI
9th Aug 2025412 PMAQI
9th Aug 2025433 PMAQI
9th Aug 2025444 PMAQI
9th Aug 2025445 PMAQI
9th Aug 2025436 PMAQI
9th Aug 2025427 PMAQI
9th Aug 2025438 PMAQI
9th Aug 2025419 PMAQI
9th Aug 20254210 PMAQI
9th Aug 20254011 PMAQI
10th Aug 20253912 AMAQI
10th Aug 2025401 AMAQI
10th Aug 2025392 AMAQI
10th Aug 2025323 AMAQI
10th Aug 2025324 AMAQI
10th Aug 2025395 AMAQI
25°C15/37°C
10th Aug 2025406 AMAQI
10th Aug 2025397 AMAQI
10th Aug 2025358 AMAQI
10th Aug 2025319 AMAQI
10th Aug 20253210 AMAQI
10th Aug 20253211 AMAQI
10th Aug 20253312 PMAQI
10th Aug 2025331 PMAQI
10th Aug 2025342 PMAQI
10th Aug 2025353 PMAQI
10th Aug 2025364 PMAQI
10th Aug 2025345 PMAQI
10th Aug 2025346 PMAQI
10th Aug 2025367 PMAQI
10th Aug 2025368 PMAQI
10th Aug 2025339 PMAQI
10th Aug 20253310 PMAQI
10th Aug 20253311 PMAQI
11th Aug 20253412 AMAQI
11th Aug 2025331 AMAQI
11th Aug 2025312 AMAQI
11th Aug 2025303 AMAQI
11th Aug 2025314 AMAQI
11th Aug 2025305 AMAQI
24°C14/38°C
11th Aug 2025326 AMAQI
11th Aug 2025307 AMAQI
11th Aug 2025318 AMAQI
11th Aug 2025329 AMAQI
11th Aug 20253410 AMAQI
11th Aug 20253111 AMAQI
11th Aug 20253012 PMAQI
11th Aug 2025281 PMAQI
11th Aug 2025302 PMAQI
11th Aug 2025263 PMAQI
11th Aug 2025274 PMAQI
11th Aug 2025325 PMAQI
11th Aug 2025296 PMAQI
11th Aug 2025297 PMAQI
11th Aug 2025328 PMAQI
11th Aug 2025329 PMAQI
11th Aug 20253210 PMAQI
11th Aug 20253011 PMAQI
12th Aug 20252912 AMAQI
12th Aug 2025281 AMAQI
12th Aug 2025282 AMAQI
12th Aug 2025283 AMAQI
12th Aug 2025274 AMAQI
12th Aug 2025275 AMAQI
20°C12/33°C
12th Aug 2025266 AMAQI
12th Aug 2025267 AMAQI
12th Aug 2025268 AMAQI
12th Aug 2025279 AMAQI
12th Aug 20252610 AMAQI
12th Aug 20252711 AMAQI
12th Aug 20252912 PMAQI
12th Aug 2025291 PMAQI
12th Aug 2025262 PMAQI
12th Aug 2025283 PMAQI
12th Aug 2025294 PMAQI
12th Aug 2025265 PMAQI
12th Aug 2025266 PMAQI
12th Aug 2025277 PMAQI
12th Aug 2025288 PMAQI
12th Aug 2025289 PMAQI
12th Aug 20252710 PMAQI
12th Aug 20252711 PMAQI
13th Aug 20252912 AMAQI
13th Aug 2025291 AMAQI
13th Aug 2025292 AMAQI
13th Aug 2025303 AMAQI
13th Aug 2025294 AMAQI
13th Aug 2025305 AMAQI
20°C14/32°C
13th Aug 2025326 AMAQI
13th Aug 2025337 AMAQI
13th Aug 2025318 AMAQI
13th Aug 2025339 AMAQI
13th Aug 20253210 AMAQI
13th Aug 20253411 AMAQI
13th Aug 20253412 PMAQI
13th Aug 2025321 PMAQI
13th Aug 2025302 PMAQI
13th Aug 2025313 PMAQI
13th Aug 2025284 PMAQI
13th Aug 2025295 PMAQI
13th Aug 2025296 PMAQI
13th Aug 2025287 PMAQI
13th Aug 2025298 PMAQI
13th Aug 2025309 PMAQI
13th Aug 20253110 PMAQI
13th Aug 20253211 PMAQI
14th Aug 20253212 AMAQI
14th Aug 2025321 AMAQI
14th Aug 2025312 AMAQI
14th Aug 2025313 AMAQI
14th Aug 2025304 AMAQI
14th Aug 2025305 AMAQI
20°C14/30°C
14th Aug 2025306 AMAQI
14th Aug 2025307 AMAQI
14th Aug 2025308 AMAQI
14th Aug 2025319 AMAQI
14th Aug 20253210 AMAQI
14th Aug 20253111 AMAQI
14th Aug 20253212 PMAQI
14th Aug 2025321 PMAQI
14th Aug 2025312 PMAQI
14th Aug 2025333 PMAQI
14th Aug 2025354 PMAQI
14th Aug 2025345 PMAQI
14th Aug 2025366 PMAQI
14th Aug 2025327 PMAQI
14th Aug 2025368 PMAQI
14th Aug 2025399 PMAQI
14th Aug 20253910 PMAQI
14th Aug 20254111 PMAQI
15th Aug 20254212 AMAQI
15th Aug 2025411 AMAQI
15th Aug 2025412 AMAQI
15th Aug 2025423 AMAQI
15th Aug 2025424 AMAQI
15th Aug 2025465 AMAQI
21°C14/32°C
15th Aug 2025426 AMAQI
6 AM15th Aug 2025447 AMAQI
15th Aug 2025448 AMAQI
15th Aug 2025459 AMAQI
15th Aug 20254610 AMAQI
15th Aug 20254711 AMAQI
15th Aug 20254912 PMAQI
15th Aug 2025501 PMAQI
1 PM8 PM
1 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
6 AM - 8 PM
34AQI
15 hours / Day
450 hours / Month
Avg. Lowest Time
6 AM - 8 PM
34AQI
15 hours / Day
450 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 8 PM (Avg. 34), while the lowest AQI was between 6 AM to 8 PM (Avg. 34).
Night time
Avg. Highest Time
12 AM - 11 PM
34AQI
9 hours / Day
270 hours / Month
Avg. Lowest Time
12 AM - 11 PM
34AQI
9 hours / Day
270 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 34), while the lowest AQI was between 12 AM to 11 PM (Avg. 34).
2025 Days Vs Air Quality
Fairfield, California, United States
2025
95%
214
5%
12
Total number of days with different AQI categories in last 227 days in 2025 (138 days remaining)
Good
214 DaysModerate
12 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 95%
Health Risk Level:
Very Low
In 2025, 95% of 227 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Fairfield, California, 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
58AQI
58AQI
2nd January 2025
47AQI
47AQI
3rd January 2025
44AQI
44AQI
4th January 2025
31AQI
31AQI
5th January 2025
32AQI
32AQI
6th January 2025
41AQI
41AQI
7th January 2025
25AQI
25AQI
8th January 2025
26AQI
26AQI
9th January 2025
41AQI
41AQI
10th January 2025
54AQI
54AQI
11th January 2025
32AQI
32AQI
12th January 2025
26AQI
26AQI
13th January 2025
32AQI
32AQI
14th January 2025
35AQI
35AQI
15th January 2025
53AQI
53AQI
16th January 2025
55AQI
55AQI
17th January 2025
52AQI
52AQI
18th January 2025
51AQI
51AQI
19th January 2025
55AQI
55AQI
20th January 2025
35AQI
35AQI
21st January 2025
44AQI
44AQI
22nd January 2025
48AQI
48AQI
23rd January 2025
48AQI
48AQI
24th January 2025
56AQI
56AQI
25th January 2025
46AQI
46AQI
26th January 2025
44AQI
44AQI
27th January 2025
45AQI
45AQI
28th January 2025
51AQI
51AQI
29th January 2025
42AQI
42AQI
30th January 2025
46AQI
46AQI
31st January 2025
39AQI
39AQI
1st February 2025
38AQI
38AQI
2nd February 2025
22AQI
22AQI
3rd February 2025
23AQI
23AQI
4th February 2025
22AQI
22AQI
5th February 2025
25AQI
25AQI
6th February 2025
23AQI
23AQI
7th February 2025
26AQI
26AQI
8th February 2025
24AQI
24AQI
9th February 2025
30AQI
30AQI
10th February 2025
27AQI
27AQI
11th February 2025
29AQI
29AQI
12th February 2025
26AQI
26AQI
13th February 2025
30AQI
30AQI
14th February 2025
30AQI
30AQI
15th February 2025
26AQI
26AQI
16th February 2025
30AQI
30AQI
17th February 2025
24AQI
24AQI
18th February 2025
26AQI
26AQI
19th February 2025
34AQI
34AQI
20th February 2025
25AQI
25AQI
21st February 2025
29AQI
29AQI
22nd February 2025
29AQI
29AQI
23rd February 2025
22AQI
22AQI
24th February 2025
21AQI
21AQI
25th February 2025
21AQI
21AQI
26th February 2025
26AQI
26AQI
27th February 2025
34AQI
34AQI
28th February 2025
38AQI
38AQI
1st March 2025
35AQI
35AQI
2nd March 2025
27AQI
27AQI
3rd March 2025
24AQI
24AQI
4th March 2025
22AQI
22AQI
5th March 2025
25AQI
25AQI
6th March 2025
29AQI
29AQI
7th March 2025
29AQI
29AQI
8th March 2025
27AQI
27AQI
9th March 2025
34AQI
34AQI
10th March 2025
26AQI
26AQI
11th March 2025
30AQI
30AQI
12th March 2025
28AQI
28AQI
13th March 2025
20AQI
20AQI
14th March 2025
18AQI
18AQI
15th March 2025
44AQI
44AQI
16th March 2025
33AQI
33AQI
17th March 2025
16AQI
16AQI
18th March 2025
18AQI
18AQI
19th March 2025
20AQI
20AQI
20th March 2025
16AQI
16AQI
21st March 2025
20AQI
20AQI
22nd March 2025
19AQI
19AQI
23rd March 2025
22AQI
22AQI
24th March 2025
21AQI
21AQI
25th March 2025
28AQI
28AQI
26th March 2025
29AQI
29AQI
27th March 2025
22AQI
22AQI
28th March 2025
29AQI
29AQI
29th March 2025
23AQI
23AQI
30th March 2025
29AQI
29AQI
31st March 2025
30AQI
30AQI
1st April 2025
28AQI
28AQI
2nd April 2025
23AQI
23AQI
3rd April 2025
27AQI
27AQI
4th April 2025
32AQI
32AQI
5th April 2025
30AQI
30AQI
6th April 2025
27AQI
27AQI
7th April 2025
19AQI
19AQI
8th April 2025
23AQI
23AQI
9th April 2025
29AQI
29AQI
10th April 2025
27AQI
27AQI
11th April 2025
23AQI
23AQI
12th April 2025
37AQI
37AQI
13th April 2025
34AQI
34AQI
14th April 2025
34AQI
34AQI
15th April 2025
37AQI
37AQI
16th April 2025
35AQI
35AQI
17th April 2025
30AQI
30AQI
18th April 2025
32AQI
32AQI
19th April 2025
41AQI
41AQI
20th April 2025
35AQI
35AQI
21st April 2025
38AQI
38AQI
22nd April 2025
42AQI
42AQI
23rd April 2025
51AQI
51AQI
24th April 2025
43AQI
43AQI
25th April 2025
27AQI
27AQI
26th April 2025
25AQI
25AQI
27th April 2025
27AQI
27AQI
28th April 2025
32AQI
32AQI
29th April 2025
42AQI
42AQI
30th April 2025
36AQI
36AQI
1st May 2025
42AQI
42AQI
2nd May 2025
32AQI
32AQI
3rd May 2025
23AQI
23AQI
4th May 2025
30AQI
30AQI
5th May 2025
29AQI
29AQI
6th May 2025
39AQI
39AQI
7th May 2025
49AQI
49AQI
8th May 2025
36AQI
36AQI
9th May 2025
37AQI
37AQI
10th May 2025
34AQI
34AQI
11th May 2025
27AQI
27AQI
12th May 2025
23AQI
23AQI
13th May 2025
22AQI
22AQI
14th May 2025
31AQI
31AQI
15th May 2025
37AQI
37AQI
16th May 2025
44AQI
44AQI
17th May 2025
30AQI
30AQI
18th May 2025
31AQI
31AQI
19th May 2025
27AQI
27AQI
20th May 2025
23AQI
23AQI
21st May 2025
37AQI
37AQI
22nd May 2025
35AQI
35AQI
23rd May 2025
27AQI
27AQI
24th May 2025
37AQI
37AQI
25th May 2025
27AQI
27AQI
26th May 2025
20AQI
20AQI
27th May 2025
30AQI
30AQI
28th May 2025
29AQI
29AQI
29th May 2025
22AQI
22AQI
30th May 2025
30AQI
30AQI
31st May 2025
44AQI
44AQI
1st June 2025
50AQI
50AQI
2nd June 2025
52AQI
52AQI
3rd June 2025
43AQI
43AQI
4th June 2025
53AQI
53AQI
5th June 2025
39AQI
39AQI
6th June 2025
24AQI
24AQI
7th June 2025
28AQI
28AQI
8th June 2025
22AQI
22AQI
9th June 2025
20AQI
20AQI
10th June 2025
25AQI
25AQI
11th June 2025
47AQI
47AQI
12th June 2025
50AQI
50AQI
13th June 2025
50AQI
50AQI
14th June 2025
48AQI
48AQI
15th June 2025
49AQI
49AQI
16th June 2025
44AQI
44AQI
17th June 2025
37AQI
37AQI
18th June 2025
34AQI
34AQI
19th June 2025
43AQI
43AQI
20th June 2025
41AQI
41AQI
21st June 2025
37AQI
37AQI
22nd June 2025
33AQI
33AQI
23rd June 2025
35AQI
35AQI
24th June 2025
30AQI
30AQI
25th June 2025
25AQI
25AQI
26th June 2025
30AQI
30AQI
27th June 2025
35AQI
35AQI
28th June 2025
37AQI
37AQI
29th June 2025
30AQI
30AQI
30th June 2025
25AQI
25AQI
1st July 2025
26AQI
26AQI
2nd July 2025
25AQI
25AQI
3rd July 2025
39AQI
39AQI
4th July 2025
35AQI
35AQI
5th July 2025
34AQI
34AQI
6th July 2025
35AQI
35AQI
7th July 2025
25AQI
25AQI
8th July 2025
22AQI
22AQI
9th July 2025
18AQI
18AQI
10th July 2025
26AQI
26AQI
11th July 2025
38AQI
38AQI
12th July 2025
38AQI
38AQI
13th July 2025
30AQI
30AQI
14th July 2025
22AQI
22AQI
15th July 2025
21AQI
21AQI
16th July 2025
22AQI
22AQI
17th July 2025
23AQI
23AQI
18th July 2025
21AQI
21AQI
19th July 2025
22AQI
22AQI
20th July 2025
23AQI
23AQI
21st July 2025
27AQI
27AQI
22nd July 2025
16AQI
16AQI
23rd July 2025
16AQI
16AQI
24th July 2025
16AQI
16AQI
25th July 2025
16AQI
16AQI
26th July 2025
17AQI
17AQI
27th July 2025
18AQI
18AQI
28th July 2025
22AQI
22AQI
29th July 2025
28AQI
28AQI
30th July 2025
27AQI
27AQI
31st July 2025
26AQI
26AQI
1st August 2025
25AQI
25AQI
2nd August 2025
24AQI
24AQI
3rd August 2025
36AQI
36AQI
4th August 2025
36AQI
36AQI
5th August 2025
32AQI
32AQI
6th August 2025
37AQI
37AQI
7th August 2025
34AQI
34AQI
8th August 2025
40AQI
40AQI
9th August 2025
38AQI
38AQI
10th August 2025
30AQI
30AQI
11th August 2025
30AQI
30AQI
12th August 2025
28AQI
28AQI
13th August 2025
26AQI
26AQI
14th August 2025
19AQI
19AQI
43AQI
27AQI
26AQI
32AQI
32AQI
37AQI
25AQI
31AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202532AQI
22
9
28
31
29
1
31
28
2
31
14
214
12
Highest AQI recorded in
January43AQI
Lowest AQI recorded in
July25AQI
202433AQI
16
1
12
29
31
31
28
27
4
26
4
18
13
219
21
Highest AQI recorded in
December45AQI
Lowest AQI recorded in
January16AQI
202320AQI
19
3
31
53
Highest AQI recorded in
December22AQI
Lowest AQI recorded in
January17AQI
202221AQI
1
23
5
1
30
1
29
1
27
109
8
1
Highest AQI recorded in
August67AQI
Lowest AQI recorded in
December12AQI
202117AQI
23
23
Highest AQI recorded in
June17AQI
Lowest AQI recorded in
June17AQI
202078AQI
14
8
3
5
1
1
1
15
8
4
6
Highest AQI recorded in
October162AQI
Lowest AQI recorded in
November29AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2020(Avg.)
78AQILeast Polluted Year Recorded
2021(Avg.)
17AQIFairfield's annual 2025 AQI (32) shows an average percentage change of 27.5% (worsened AQI) compared to previous years: 2020 (78), 2021 (17), 2022 (21), 2023 (20), 2024 (33).
