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HistoryAQIPM2.5PM10COSO2NO2O3

Gridley, 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+

October Air Quality Analysis

Gridley, California, United States

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
19th Oct 2023
70AQI
Lowest AQI recorded on
12th Oct 2021
10AQI

Same Day Analysis (10th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 43 of Good air quality, showing improvement over 2024 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 10th Oct - 11th Oct 2025

Gridley, California, United States

AQI
Day
Night
.

6 AM10th Oct 2025

6 PM

5 AM11th Oct 2025

Day time
Avg. Highest Time
5PM10th Oct

92AQI

Avg. Lowest Time
7AM10th Oct

24AQI

Night time
Avg. Highest Time
6AM10th Oct

41AQI

Avg. Lowest Time
5AM11th Oct

6AQI

In the last 24 hours,

Gridley's AQI reached its highest point of 92 at 5 PM during the Day, while the lowest point, 6, was recorded at 5 AM during the Night between 10th Oct and 11th Oct 2025.

Day & Night AQI Trend : Sep - Oct 2025

Gridley, California, 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 2025236 AMAQI
11th Sep 2025237 AMAQI
11th Sep 2025228 AMAQI
11th Sep 2025239 AMAQI
11th Sep 20252110 AMAQI
11th Sep 20252311 AMAQI
11th Sep 20252912 PMAQI
11th Sep 2025281 PMAQI
11th Sep 2025282 PMAQI
11th Sep 2025293 PMAQI
11th Sep 2025254 PMAQI
11th Sep 2025205 PMAQI
11th Sep 2025206 PMAQI
11th Sep 2025227 PMAQI
11th Sep 2025228 PMAQI
11th Sep 2025219 PMAQI
11th Sep 20252010 PMAQI
11th Sep 20252511 PMAQI
12th Sep 20253012 AMAQI
12th Sep 2025301 AMAQI
12th Sep 2025302 AMAQI
12th Sep 2025323 AMAQI
12th Sep 2025344 AMAQI
12th Sep 2025345 AMAQI

22°C16/30°C

12th Sep 2025266 AMAQI
12th Sep 2025237 AMAQI
12th Sep 2025208 AMAQI
12th Sep 2025229 AMAQI
12th Sep 20252410 AMAQI
12th Sep 20253211 AMAQI
12th Sep 20253912 PMAQI
12th Sep 2025371 PMAQI
12th Sep 2025372 PMAQI
12th Sep 2025443 PMAQI
12th Sep 2025474 PMAQI
12th Sep 2025465 PMAQI
12th Sep 2025396 PMAQI
12th Sep 2025317 PMAQI
12th Sep 2025318 PMAQI
12th Sep 2025319 PMAQI
12th Sep 20253110 PMAQI
12th Sep 20253311 PMAQI
13th Sep 20253512 AMAQI
13th Sep 2025351 AMAQI
13th Sep 2025412 AMAQI
13th Sep 2025403 AMAQI
13th Sep 2025394 AMAQI
13th Sep 2025405 AMAQI

25°C16/34°C

13th Sep 2025396 AMAQI
13th Sep 2025397 AMAQI
13th Sep 2025408 AMAQI
13th Sep 2025409 AMAQI
13th Sep 20253910 AMAQI
13th Sep 20254111 AMAQI
13th Sep 20254212 PMAQI
13th Sep 2025371 PMAQI
13th Sep 2025352 PMAQI
13th Sep 2025333 PMAQI
13th Sep 2025324 PMAQI
13th Sep 2025405 PMAQI
13th Sep 2025436 PMAQI
13th Sep 2025407 PMAQI
13th Sep 2025388 PMAQI
13th Sep 2025389 PMAQI
13th Sep 20253810 PMAQI
13th Sep 20253411 PMAQI
14th Sep 20253212 AMAQI
14th Sep 2025361 AMAQI
14th Sep 2025372 AMAQI
14th Sep 2025363 AMAQI
14th Sep 2025324 AMAQI
14th Sep 2025345 AMAQI

25°C16/35°C

14th Sep 2025346 AMAQI
14th Sep 2025337 AMAQI
14th Sep 2025318 AMAQI
14th Sep 2025309 AMAQI
14th Sep 20253010 AMAQI
14th Sep 20253011 AMAQI
14th Sep 20253012 PMAQI
14th Sep 2025301 PMAQI
14th Sep 2025292 PMAQI
14th Sep 2025323 PMAQI
14th Sep 2025324 PMAQI
14th Sep 2025315 PMAQI
14th Sep 2025296 PMAQI
14th Sep 2025327 PMAQI
14th Sep 2025308 PMAQI
14th Sep 2025309 PMAQI
14th Sep 20253110 PMAQI
14th Sep 20253111 PMAQI
15th Sep 20253012 AMAQI
15th Sep 2025321 AMAQI
15th Sep 2025322 AMAQI
15th Sep 2025293 AMAQI
15th Sep 2025304 AMAQI
15th Sep 2025325 AMAQI

24°C14/34°C

15th Sep 2025316 AMAQI
15th Sep 2025247 AMAQI
15th Sep 2025278 AMAQI
15th Sep 2025399 AMAQI
15th Sep 20252910 AMAQI
15th Sep 20253011 AMAQI
15th Sep 20252412 PMAQI
15th Sep 2025301 PMAQI
15th Sep 2025302 PMAQI
15th Sep 2025303 PMAQI
15th Sep 2025274 PMAQI
15th Sep 2025305 PMAQI
15th Sep 2025286 PMAQI
15th Sep 2025287 PMAQI
15th Sep 2025278 PMAQI
15th Sep 2025269 PMAQI
15th Sep 20252710 PMAQI
15th Sep 20253011 PMAQI
16th Sep 20253412 AMAQI
16th Sep 2025361 AMAQI
16th Sep 2025362 AMAQI
16th Sep 2025373 AMAQI
16th Sep 2025364 AMAQI
16th Sep 2025365 AMAQI

26°C16/37°C

16th Sep 2025376 AMAQI
16th Sep 2025307 AMAQI
16th Sep 2025288 AMAQI
16th Sep 2025339 AMAQI
16th Sep 20253410 AMAQI
16th Sep 20253411 AMAQI
16th Sep 20254212 PMAQI
16th Sep 2025441 PMAQI
16th Sep 2025412 PMAQI
16th Sep 2025453 PMAQI
16th Sep 2025404 PMAQI
16th Sep 2025385 PMAQI
16th Sep 2025376 PMAQI
16th Sep 2025377 PMAQI
16th Sep 2025358 PMAQI
16th Sep 2025329 PMAQI
16th Sep 20253310 PMAQI
16th Sep 20254811 PMAQI
17th Sep 20255412 AMAQI
17th Sep 2025521 AMAQI
17th Sep 2025502 AMAQI
17th Sep 2025443 AMAQI
17th Sep 2025404 AMAQI
17th Sep 2025385 AMAQI

27°C17/39°C

17th Sep 2025326 AMAQI
17th Sep 2025357 AMAQI
17th Sep 2025348 AMAQI
17th Sep 2025299 AMAQI
17th Sep 20253010 AMAQI
17th Sep 20253511 AMAQI
17th Sep 20254212 PMAQI
17th Sep 2025391 PMAQI
17th Sep 2025472 PMAQI
17th Sep 2025433 PMAQI
17th Sep 2025444 PMAQI
17th Sep 2025425 PMAQI
17th Sep 2025406 PMAQI
17th Sep 2025407 PMAQI
17th Sep 2025398 PMAQI
17th Sep 2025379 PMAQI
17th Sep 20253910 PMAQI
17th Sep 20254911 PMAQI
18th Sep 20255412 AMAQI
18th Sep 2025531 AMAQI
18th Sep 2025512 AMAQI
18th Sep 2025423 AMAQI
18th Sep 2025284 AMAQI
18th Sep 2025265 AMAQI

28°C18/40°C

18th Sep 2025306 AMAQI
18th Sep 2025347 AMAQI
18th Sep 2025348 AMAQI
18th Sep 2025349 AMAQI
18th Sep 20254310 AMAQI
18th Sep 20255111 AMAQI
18th Sep 20254212 PMAQI
18th Sep 2025411 PMAQI
18th Sep 2025422 PMAQI
18th Sep 2025423 PMAQI
18th Sep 2025424 PMAQI
18th Sep 2025435 PMAQI
18th Sep 2025446 PMAQI
18th Sep 2025427 PMAQI
18th Sep 2025428 PMAQI
18th Sep 2025449 PMAQI
18th Sep 20254210 PMAQI
18th Sep 20254211 PMAQI
19th Sep 20254212 AMAQI
19th Sep 2025431 AMAQI
19th Sep 2025442 AMAQI
19th Sep 2025363 AMAQI
19th Sep 2025274 AMAQI
19th Sep 2025305 AMAQI

28°C20/37°C

19th Sep 2025306 AMAQI
19th Sep 2025347 AMAQI
19th Sep 2025408 AMAQI
19th Sep 2025489 AMAQI
19th Sep 20255010 AMAQI
19th Sep 20254611 AMAQI
19th Sep 20255012 PMAQI
19th Sep 2025491 PMAQI
19th Sep 2025512 PMAQI
19th Sep 2025463 PMAQI
19th Sep 2025474 PMAQI
19th Sep 2025505 PMAQI
19th Sep 2025496 PMAQI
19th Sep 2025467 PMAQI
19th Sep 2025498 PMAQI
19th Sep 2025509 PMAQI
19th Sep 20254510 PMAQI
19th Sep 20254511 PMAQI
20th Sep 20254512 AMAQI
20th Sep 2025501 AMAQI
20th Sep 2025512 AMAQI
20th Sep 2025523 AMAQI
20th Sep 2025524 AMAQI
20th Sep 2025485 AMAQI

22°C19/25°C

20th Sep 2025526 AMAQI
20th Sep 2025527 AMAQI
20th Sep 2025478 AMAQI
20th Sep 2025529 AMAQI
20th Sep 20255410 AMAQI
20th Sep 20255411 AMAQI
20th Sep 20255312 PMAQI
20th Sep 2025521 PMAQI
20th Sep 2025522 PMAQI
20th Sep 2025523 PMAQI
20th Sep 2025514 PMAQI
20th Sep 2025465 PMAQI
20th Sep 2025456 PMAQI
20th Sep 2025527 PMAQI
20th Sep 2025508 PMAQI
20th Sep 2025489 PMAQI
20th Sep 20254810 PMAQI
20th Sep 20254811 PMAQI
21st Sep 20254712 AMAQI
21st Sep 2025471 AMAQI
21st Sep 2025432 AMAQI
21st Sep 2025433 AMAQI
21st Sep 2025224 AMAQI
21st Sep 2025345 AMAQI

25°C16/34°C

21st Sep 2025266 AMAQI
21st Sep 2025287 AMAQI
21st Sep 2025298 AMAQI
21st Sep 2025299 AMAQI
21st Sep 20253110 AMAQI
21st Sep 20253111 AMAQI
21st Sep 20253512 PMAQI
21st Sep 2025341 PMAQI
21st Sep 2025382 PMAQI
21st Sep 2025453 PMAQI
21st Sep 2025434 PMAQI
21st Sep 2025385 PMAQI
21st Sep 2025366 PMAQI
21st Sep 2025347 PMAQI
21st Sep 2025368 PMAQI
21st Sep 2025339 PMAQI
21st Sep 20253110 PMAQI
21st Sep 20253711 PMAQI
22nd Sep 20254112 AMAQI
22nd Sep 2025391 AMAQI
22nd Sep 2025412 AMAQI
22nd Sep 2025383 AMAQI
22nd Sep 2025374 AMAQI
22nd Sep 2025325 AMAQI

26°C17/36°C

22nd Sep 2025316 AMAQI
22nd Sep 2025337 AMAQI
22nd Sep 2025358 AMAQI
22nd Sep 2025359 AMAQI
22nd Sep 20254210 AMAQI
22nd Sep 20253611 AMAQI
22nd Sep 20253112 PMAQI
22nd Sep 2025341 PMAQI
22nd Sep 2025522 PMAQI
22nd Sep 2025433 PMAQI
22nd Sep 2025414 PMAQI
22nd Sep 2025405 PMAQI
22nd Sep 2025386 PMAQI
22nd Sep 2025377 PMAQI
22nd Sep 2025368 PMAQI
22nd Sep 2025369 PMAQI
22nd Sep 20253610 PMAQI
22nd Sep 20253611 PMAQI
23rd Sep 20253712 AMAQI
23rd Sep 2025381 AMAQI
23rd Sep 2025392 AMAQI
23rd Sep 2025383 AMAQI
23rd Sep 2025374 AMAQI
23rd Sep 2025375 AMAQI

26°C17/37°C

23rd Sep 2025376 AMAQI
23rd Sep 2025367 AMAQI
23rd Sep 2025388 AMAQI
23rd Sep 2025359 AMAQI
23rd Sep 20253610 AMAQI
23rd Sep 20253711 AMAQI
23rd Sep 20254412 PMAQI
23rd Sep 2025461 PMAQI
23rd Sep 2025462 PMAQI
23rd Sep 2025443 PMAQI
23rd Sep 2025434 PMAQI
23rd Sep 2025415 PMAQI
23rd Sep 2025396 PMAQI
23rd Sep 2025427 PMAQI
23rd Sep 2025428 PMAQI
23rd Sep 2025399 PMAQI
23rd Sep 20254010 PMAQI
23rd Sep 20254611 PMAQI
24th Sep 20254812 AMAQI
24th Sep 2025491 AMAQI
24th Sep 2025472 AMAQI
24th Sep 2025413 AMAQI
24th Sep 2025404 AMAQI
24th Sep 2025435 AMAQI

26°C16/39°C

24th Sep 2025466 AMAQI
24th Sep 2025527 AMAQI
24th Sep 2025498 AMAQI
24th Sep 2025449 AMAQI
24th Sep 20255110 AMAQI
24th Sep 20254811 AMAQI
24th Sep 20254912 PMAQI
24th Sep 2025511 PMAQI
24th Sep 2025522 PMAQI
24th Sep 2025523 PMAQI
24th Sep 2025544 PMAQI
24th Sep 2025545 PMAQI
24th Sep 2025526 PMAQI
24th Sep 2025517 PMAQI
24th Sep 2025508 PMAQI
24th Sep 2025489 PMAQI
24th Sep 20254810 PMAQI
24th Sep 20254811 PMAQI
25th Sep 20254612 AMAQI
25th Sep 2025321 AMAQI
25th Sep 2025302 AMAQI
25th Sep 2025313 AMAQI
25th Sep 2025314 AMAQI
25th Sep 2025285 AMAQI

25°C16/34°C

25th Sep 2025336 AMAQI
25th Sep 2025287 AMAQI
25th Sep 2025328 AMAQI
25th Sep 2025399 AMAQI
25th Sep 20252810 AMAQI
25th Sep 20252611 AMAQI
25th Sep 20253512 PMAQI
25th Sep 2025361 PMAQI
25th Sep 2025312 PMAQI
25th Sep 2025343 PMAQI
25th Sep 2025364 PMAQI
25th Sep 2025385 PMAQI
25th Sep 2025376 PMAQI
25th Sep 2025377 PMAQI
25th Sep 2025468 PMAQI
25th Sep 2025429 PMAQI
25th Sep 20254710 PMAQI
25th Sep 20255011 PMAQI
26th Sep 20254112 AMAQI
26th Sep 2025361 AMAQI
26th Sep 2025322 AMAQI
26th Sep 2025423 AMAQI
26th Sep 2025514 AMAQI
26th Sep 2025335 AMAQI

25°C18/34°C

26th Sep 2025186 AMAQI
26th Sep 2025207 AMAQI
26th Sep 2025298 AMAQI
26th Sep 2025379 AMAQI
26th Sep 20253810 AMAQI
26th Sep 20254211 AMAQI
26th Sep 20256012 PMAQI
26th Sep 2025541 PMAQI
26th Sep 2025542 PMAQI
26th Sep 2025553 PMAQI
26th Sep 2025544 PMAQI
26th Sep 2025505 PMAQI
26th Sep 2025476 PMAQI
26th Sep 2025417 PMAQI
26th Sep 2025368 PMAQI
26th Sep 2025389 PMAQI
26th Sep 20254510 PMAQI
26th Sep 20255111 PMAQI
27th Sep 20255012 AMAQI
27th Sep 2025431 AMAQI
27th Sep 2025482 AMAQI
27th Sep 2025433 AMAQI
27th Sep 2025464 AMAQI
27th Sep 2025425 AMAQI

25°C15/38°C

27th Sep 2025436 AMAQI
27th Sep 2025447 AMAQI
27th Sep 2025428 AMAQI
27th Sep 2025579 AMAQI
27th Sep 20255810 AMAQI
27th Sep 20254711 AMAQI
27th Sep 20255212 PMAQI
27th Sep 2025601 PMAQI
27th Sep 2025522 PMAQI
27th Sep 2025473 PMAQI
27th Sep 2025474 PMAQI
27th Sep 2025455 PMAQI
27th Sep 2025466 PMAQI
27th Sep 2025457 PMAQI
27th Sep 2025428 PMAQI
27th Sep 2025429 PMAQI
27th Sep 20254710 PMAQI
27th Sep 20254811 PMAQI
28th Sep 20253712 AMAQI
28th Sep 2025331 AMAQI
28th Sep 2025262 AMAQI
28th Sep 2025303 AMAQI
28th Sep 2025334 AMAQI
28th Sep 2025325 AMAQI

25°C17/35°C

28th Sep 2025296 AMAQI
28th Sep 2025297 AMAQI
28th Sep 2025328 AMAQI
28th Sep 2025269 AMAQI
28th Sep 20252510 AMAQI
28th Sep 20253211 AMAQI
28th Sep 20253712 PMAQI
28th Sep 2025391 PMAQI
28th Sep 2025252 PMAQI
28th Sep 2025323 PMAQI
28th Sep 2025244 PMAQI
28th Sep 2025225 PMAQI
28th Sep 2025236 PMAQI
28th Sep 2025327 PMAQI
28th Sep 2025368 PMAQI
28th Sep 2025269 PMAQI
28th Sep 20252510 PMAQI
28th Sep 20252311 PMAQI
29th Sep 20252212 AMAQI
29th Sep 2025191 AMAQI
29th Sep 2025202 AMAQI
29th Sep 2025273 AMAQI
29th Sep 2025304 AMAQI
29th Sep 2025235 AMAQI

20°C16/25°C

29th Sep 2025236 AMAQI
29th Sep 2025207 AMAQI
29th Sep 2025268 AMAQI
29th Sep 2025279 AMAQI
29th Sep 20253010 AMAQI
29th Sep 20252211 AMAQI
29th Sep 20252312 PMAQI
29th Sep 2025251 PMAQI
29th Sep 2025272 PMAQI
29th Sep 2025213 PMAQI
29th Sep 2025214 PMAQI
29th Sep 2025285 PMAQI
29th Sep 2025286 PMAQI
29th Sep 2025277 PMAQI
29th Sep 2025408 PMAQI
29th Sep 2025359 PMAQI
29th Sep 20253310 PMAQI
29th Sep 20253911 PMAQI
30th Sep 20253512 AMAQI
30th Sep 2025411 AMAQI
30th Sep 2025382 AMAQI
30th Sep 2025263 AMAQI
30th Sep 2025234 AMAQI
30th Sep 2025175 AMAQI

21°C18/28°C

30th Sep 2025296 AMAQI
30th Sep 2025267 AMAQI
30th Sep 2025208 AMAQI
30th Sep 2025169 AMAQI
30th Sep 20252110 AMAQI
30th Sep 20252211 AMAQI
30th Sep 20252612 PMAQI
30th Sep 2025261 PMAQI
30th Sep 2025222 PMAQI
30th Sep 2025193 PMAQI
30th Sep 2025204 PMAQI
30th Sep 2025185 PMAQI
30th Sep 2025306 PMAQI
30th Sep 2025227 PMAQI
30th Sep 2025208 PMAQI
30th Sep 2025189 PMAQI
30th Sep 20252110 PMAQI
30th Sep 20251911 PMAQI
1st Oct 20251512 AMAQI
1st Oct 2025171 AMAQI
1st Oct 2025172 AMAQI
1st Oct 2025173 AMAQI
1st Oct 2025204 AMAQI
1st Oct 2025175 AMAQI

20°C17/26°C

1st Oct 2025186 AMAQI
1st Oct 2025187 AMAQI
1st Oct 2025118 AMAQI
1st Oct 202579 AMAQI
1st Oct 2025610 AMAQI
1st Oct 2025611 AMAQI
1st Oct 20252012 PMAQI
1st Oct 2025321 PMAQI
1st Oct 2025352 PMAQI
1st Oct 202583 PMAQI
1st Oct 202594 PMAQI
1st Oct 2025105 PMAQI
1st Oct 2025116 PMAQI
1st Oct 2025127 PMAQI
1st Oct 2025148 PMAQI
1st Oct 2025149 PMAQI
1st Oct 20251510 PMAQI
1st Oct 20251811 PMAQI
2nd Oct 20252412 AMAQI
2nd Oct 2025721 AMAQI
2nd Oct 2025752 AMAQI
2nd Oct 2025593 AMAQI
2nd Oct 2025394 AMAQI
2nd Oct 2025375 AMAQI

19°C16/25°C

2nd Oct 2025366 AMAQI
2nd Oct 2025347 AMAQI
2nd Oct 2025378 AMAQI
2nd Oct 2025399 AMAQI
2nd Oct 20255910 AMAQI
2nd Oct 20255511 AMAQI
2nd Oct 20254512 PMAQI
2nd Oct 2025321 PMAQI
2nd Oct 2025102 PMAQI
2nd Oct 2025383 PMAQI
2nd Oct 2025274 PMAQI
2nd Oct 2025105 PMAQI
2nd Oct 2025416 PMAQI
2nd Oct 2025367 PMAQI
2nd Oct 2025338 PMAQI
2nd Oct 2025129 PMAQI
2nd Oct 20254210 PMAQI
2nd Oct 20251811 PMAQI
3rd Oct 20253512 AMAQI
3rd Oct 2025361 AMAQI
3rd Oct 2025402 AMAQI
3rd Oct 2025413 AMAQI
3rd Oct 2025384 AMAQI
3rd Oct 2025475 AMAQI

18°C14/24°C

3rd Oct 2025166 AMAQI
3rd Oct 2025177 AMAQI
3rd Oct 2025238 AMAQI
3rd Oct 2025499 AMAQI
3rd Oct 20254210 AMAQI
3rd Oct 20255011 AMAQI
3rd Oct 20251012 PMAQI
3rd Oct 2025121 PMAQI
3rd Oct 202562 PMAQI
3rd Oct 202583 PMAQI
3rd Oct 2025134 PMAQI
3rd Oct 202575 PMAQI
3rd Oct 202596 PMAQI
3rd Oct 2025107 PMAQI
3rd Oct 202588 PMAQI
3rd Oct 2025129 PMAQI
3rd Oct 20251210 PMAQI
3rd Oct 20252311 PMAQI
4th Oct 20255212 AMAQI
4th Oct 2025631 AMAQI
4th Oct 2025742 AMAQI
4th Oct 2025583 AMAQI
4th Oct 2025424 AMAQI
4th Oct 2025435 AMAQI

17°C14/22°C

4th Oct 2025306 AMAQI
4th Oct 202597 AMAQI
4th Oct 202598 AMAQI
4th Oct 2025139 AMAQI
4th Oct 20252610 AMAQI
4th Oct 20254511 AMAQI
4th Oct 20253912 PMAQI
4th Oct 2025201 PMAQI
4th Oct 2025132 PMAQI
4th Oct 2025133 PMAQI
4th Oct 2025124 PMAQI
4th Oct 2025105 PMAQI
4th Oct 202586 PMAQI
4th Oct 2025177 PMAQI
4th Oct 2025288 PMAQI
4th Oct 2025169 PMAQI
4th Oct 20253910 PMAQI
4th Oct 20256511 PMAQI
5th Oct 20254512 AMAQI
5th Oct 2025511 AMAQI
5th Oct 2025522 AMAQI
5th Oct 2025563 AMAQI
5th Oct 2025464 AMAQI
5th Oct 2025515 AMAQI

18°C12/28°C

5th Oct 2025466 AMAQI
5th Oct 2025297 AMAQI
5th Oct 2025138 AMAQI
5th Oct 2025239 AMAQI
5th Oct 20255010 AMAQI
5th Oct 20254211 AMAQI
5th Oct 20255012 PMAQI
5th Oct 2025361 PMAQI
5th Oct 2025132 PMAQI
5th Oct 2025133 PMAQI
5th Oct 2025154 PMAQI
5th Oct 2025145 PMAQI
5th Oct 2025146 PMAQI
5th Oct 2025597 PMAQI
5th Oct 2025138 PMAQI
5th Oct 2025129 PMAQI
5th Oct 20251710 PMAQI
5th Oct 20251711 PMAQI
6th Oct 20251712 AMAQI
6th Oct 2025171 AMAQI
6th Oct 2025122 AMAQI
6th Oct 2025123 AMAQI
6th Oct 202574 AMAQI
6th Oct 2025105 AMAQI

19°C11/29°C

6th Oct 202576 AMAQI
6th Oct 2025407 AMAQI
6th Oct 202598 AMAQI
6th Oct 2025469 AMAQI
6th Oct 20254410 AMAQI
7th Oct 2025414 AMAQI
7th Oct 2025125 AMAQI

21°C13/33°C

7th Oct 2025356 AMAQI
7th Oct 2025387 AMAQI
7th Oct 2025418 AMAQI
7th Oct 2025159 AMAQI
7th Oct 20252810 AMAQI
7th Oct 20254111 AMAQI
7th Oct 20253012 PMAQI
7th Oct 2025251 PMAQI
7th Oct 2025392 PMAQI
7th Oct 2025393 PMAQI
7th Oct 2025384 PMAQI
7th Oct 2025515 PMAQI
7th Oct 2025596 PMAQI
7th Oct 2025677 PMAQI
7th Oct 2025478 PMAQI
7th Oct 2025349 PMAQI
7th Oct 20256310 PMAQI
7th Oct 20256211 PMAQI
8th Oct 20256012 AMAQI
8th Oct 2025571 AMAQI
8th Oct 2025472 AMAQI
8th Oct 2025473 AMAQI
8th Oct 2025544 AMAQI
8th Oct 2025565 AMAQI

21°C12/33°C

8th Oct 2025696 AMAQI
8th Oct 2025567 AMAQI
8th Oct 2025578 AMAQI
8th Oct 2025509 AMAQI
8th Oct 20255010 AMAQI
8th Oct 20254611 AMAQI
8th Oct 20254112 PMAQI
8th Oct 2025401 PMAQI
8th Oct 2025512 PMAQI
8th Oct 2025633 PMAQI
8th Oct 2025554 PMAQI
8th Oct 2025595 PMAQI
8th Oct 2025576 PMAQI
8th Oct 2025607 PMAQI
8th Oct 2025638 PMAQI
8th Oct 2025559 PMAQI
8th Oct 20255110 PMAQI
8th Oct 20254811 PMAQI
9th Oct 20254412 AMAQI
9th Oct 2025421 AMAQI
9th Oct 2025442 AMAQI
9th Oct 2025463 AMAQI
9th Oct 2025444 AMAQI
9th Oct 2025425 AMAQI

20°C11/31°C

9th Oct 2025466 AMAQI
9th Oct 2025447 AMAQI
9th Oct 2025508 AMAQI
9th Oct 2025479 AMAQI
9th Oct 20254410 AMAQI
9th Oct 20254611 AMAQI
9th Oct 20254712 PMAQI
9th Oct 2025431 PMAQI
9th Oct 2025422 PMAQI
9th Oct 2025483 PMAQI
9th Oct 2025454 PMAQI
9th Oct 2025425 PMAQI
9th Oct 2025466 PMAQI
9th Oct 2025707 PMAQI
9th Oct 2025288 PMAQI
9th Oct 2025399 PMAQI
9th Oct 20254710 PMAQI
9th Oct 20254111 PMAQI
10th Oct 20254212 AMAQI
10th Oct 2025511 AMAQI
10th Oct 2025462 AMAQI
10th Oct 2025443 AMAQI
10th Oct 2025214 AMAQI
10th Oct 2025395 AMAQI

19°C14/26°C

10th Oct 2025416 AMAQI
10th Oct 2025247 AMAQI
10th Oct 2025438 AMAQI
10th Oct 2025439 AMAQI
10th Oct 20255010 AMAQI
10th Oct 20252511 AMAQI
10th Oct 20253312 PMAQI
10th Oct 2025421 PMAQI
10th Oct 2025582 PMAQI
10th Oct 2025523 PMAQI
10th Oct 2025464 PMAQI
10th Oct 2025925 PMAQI
10th Oct 2025896 PMAQI
10th Oct 2025397 PMAQI
10th Oct 2025368 PMAQI
10th Oct 2025279 PMAQI
10th Oct 20252510 PMAQI
10th Oct 20251811 PMAQI
11th Oct 20251212 AMAQI
11th Oct 2025101 AMAQI
11th Oct 2025102 AMAQI
11th Oct 2025103 AMAQI
11th Oct 202574 AMAQI
11th Oct 202565 AMAQI

19°C14/26°C

11th Oct 202566 AMAQI
6 AM
11th Oct 202567 AMAQI
11th Oct 202568 AMAQI
12 PM
6 PM
12 AM
5 AM

--°C/°C

Day time
Avg. Highest Time
10 AM - 6 PM

37AQI

9 hours / Day
270 hours / Month
Avg. Lowest Time
7 AM - 8 AM

31AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 AM to 6 PM (Avg. 37), while the lowest AQI was between 7 AM to 8 AM (Avg. 31).
Night time
Avg. Highest Time
12 AM - 2 AM

39AQI

3 hours / Day
90 hours / Month
Avg. Lowest Time
9 PM

32AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 2 AM (Avg. 39), while the lowest AQI was between 9 PM to 9 PM (Avg. 32).

2025 Days Vs Air Quality

Gridley, California, United States

2025

95%

270

5%

13

Total number of days with different AQI categories in last 284 days in 2025 (81 days remaining)

Good
270 Days
Moderate
13 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 95%

Health Risk Level:

Very Low

In 2025, 95% of 284 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

Gridley, 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.

-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
53AQI
2nd January 2025
32AQI
3rd January 2025
38AQI
4th January 2025
22AQI
5th January 2025
27AQI
6th January 2025
27AQI
7th January 2025
18AQI
8th January 2025
20AQI
9th January 2025
29AQI
10th January 2025
45AQI
11th January 2025
30AQI
12th January 2025
21AQI
13th January 2025
23AQI
14th January 2025
26AQI
15th January 2025
41AQI
16th January 2025
52AQI
17th January 2025
50AQI
18th January 2025
62AQI
19th January 2025
56AQI
20th January 2025
39AQI
21st January 2025
33AQI
22nd January 2025
46AQI
23rd January 2025
57AQI
24th January 2025
55AQI
25th January 2025
35AQI
26th January 2025
33AQI
27th January 2025
23AQI
28th January 2025
46AQI
29th January 2025
56AQI
30th January 2025
71AQI
31st January 2025
51AQI
1st February 2025
30AQI
2nd February 2025
21AQI
3rd February 2025
20AQI
4th February 2025
20AQI
5th February 2025
23AQI
6th February 2025
38AQI
7th February 2025
21AQI
8th February 2025
21AQI
9th February 2025
23AQI
10th February 2025
25AQI
11th February 2025
30AQI
12th February 2025
40AQI
13th February 2025
26AQI
14th February 2025
24AQI
15th February 2025
24AQI
16th February 2025
26AQI
17th February 2025
24AQI
18th February 2025
27AQI
19th February 2025
23AQI
20th February 2025
25AQI
21st February 2025
21AQI
22nd February 2025
39AQI
23rd February 2025
28AQI
24th February 2025
27AQI
25th February 2025
20AQI
26th February 2025
25AQI
27th February 2025
34AQI
28th February 2025
30AQI
1st March 2025
32AQI
2nd March 2025
21AQI
3rd March 2025
19AQI
4th March 2025
20AQI
5th March 2025
24AQI
6th March 2025
19AQI
7th March 2025
23AQI
8th March 2025
26AQI
9th March 2025
31AQI
10th March 2025
30AQI
11th March 2025
26AQI
12th March 2025
22AQI
13th March 2025
18AQI
14th March 2025
17AQI
15th March 2025
29AQI
16th March 2025
34AQI
17th March 2025
15AQI
18th March 2025
16AQI
19th March 2025
18AQI
20th March 2025
15AQI
21st March 2025
18AQI
22nd March 2025
18AQI
23rd March 2025
17AQI
24th March 2025
25AQI
25th March 2025
37AQI
26th March 2025
27AQI
27th March 2025
17AQI
28th March 2025
24AQI
29th March 2025
20AQI
30th March 2025
29AQI
31st March 2025
20AQI
1st April 2025
18AQI
2nd April 2025
17AQI
3rd April 2025
22AQI
4th April 2025
22AQI
5th April 2025
23AQI
6th April 2025
30AQI
7th April 2025
17AQI
8th April 2025
18AQI
9th April 2025
34AQI
10th April 2025
26AQI
11th April 2025
26AQI
12th April 2025
29AQI
13th April 2025
29AQI
14th April 2025
26AQI
15th April 2025
45AQI
16th April 2025
35AQI
17th April 2025
23AQI
18th April 2025
27AQI
19th April 2025
29AQI
20th April 2025
33AQI
21st April 2025
33AQI
22nd April 2025
36AQI
23rd April 2025
44AQI
24th April 2025
43AQI
25th April 2025
22AQI
26th April 2025
25AQI
27th April 2025
17AQI
28th April 2025
23AQI
29th April 2025
30AQI
30th April 2025
31AQI
1st May 2025
24AQI
2nd May 2025
32AQI
3rd May 2025
22AQI
4th May 2025
27AQI
5th May 2025
25AQI
6th May 2025
21AQI
7th May 2025
26AQI
8th May 2025
24AQI
9th May 2025
27AQI
10th May 2025
25AQI
11th May 2025
22AQI
12th May 2025
21AQI
13th May 2025
17AQI
14th May 2025
18AQI
15th May 2025
21AQI
16th May 2025
26AQI
17th May 2025
29AQI
18th May 2025
22AQI
19th May 2025
18AQI
20th May 2025
17AQI
21st May 2025
27AQI
22nd May 2025
28AQI
23rd May 2025
19AQI
24th May 2025
31AQI
25th May 2025
26AQI
26th May 2025
18AQI
27th May 2025
24AQI
28th May 2025
34AQI
29th May 2025
26AQI
30th May 2025
33AQI
31st May 2025
39AQI
1st June 2025
44AQI
2nd June 2025
48AQI
3rd June 2025
41AQI
4th June 2025
41AQI
5th June 2025
41AQI
6th June 2025
35AQI
7th June 2025
30AQI
8th June 2025
28AQI
9th June 2025
25AQI
10th June 2025
32AQI
11th June 2025
43AQI
12th June 2025
48AQI
13th June 2025
47AQI
14th June 2025
40AQI
15th June 2025
39AQI
16th June 2025
38AQI
17th June 2025
36AQI
18th June 2025
33AQI
19th June 2025
32AQI
20th June 2025
39AQI
21st June 2025
20AQI
22nd June 2025
16AQI
23rd June 2025
19AQI
24th June 2025
24AQI
25th June 2025
23AQI
26th June 2025
27AQI
27th June 2025
31AQI
28th June 2025
33AQI
29th June 2025
32AQI
30th June 2025
29AQI
1st July 2025
31AQI
2nd July 2025
31AQI
3rd July 2025
37AQI
4th July 2025
35AQI
5th July 2025
56AQI
6th July 2025
35AQI
7th July 2025
28AQI
8th July 2025
31AQI
9th July 2025
25AQI
10th July 2025
38AQI
11th July 2025
59AQI
12th July 2025
58AQI
13th July 2025
47AQI
14th July 2025
39AQI
15th July 2025
33AQI
16th July 2025
28AQI
17th July 2025
26AQI
18th July 2025
22AQI
19th July 2025
27AQI
20th July 2025
22AQI
21st July 2025
30AQI
22nd July 2025
19AQI
23rd July 2025
20AQI
24th July 2025
18AQI
25th July 2025
22AQI
26th July 2025
20AQI
27th July 2025
20AQI
28th July 2025
23AQI
29th July 2025
28AQI
30th July 2025
32AQI
31st July 2025
38AQI
1st August 2025
40AQI
2nd August 2025
36AQI
3rd August 2025
34AQI
4th August 2025
33AQI
5th August 2025
31AQI
6th August 2025
39AQI
7th August 2025
30AQI
8th August 2025
28AQI
9th August 2025
34AQI
10th August 2025
32AQI
11th August 2025
36AQI
12th August 2025
40AQI
13th August 2025
37AQI
14th August 2025
29AQI
15th August 2025
41AQI
16th August 2025
25AQI
17th August 2025
17AQI
18th August 2025
25AQI
19th August 2025
24AQI
20th August 2025
27AQI
21st August 2025
35AQI
22nd August 2025
42AQI
23rd August 2025
50AQI
24th August 2025
37AQI
25th August 2025
36AQI
26th August 2025
41AQI
27th August 2025
46AQI
28th August 2025
40AQI
29th August 2025
38AQI
30th August 2025
35AQI
31st August 2025
36AQI
1st September 2025
32AQI
2nd September 2025
44AQI
3rd September 2025
37AQI
4th September 2025
32AQI
5th September 2025
27AQI
6th September 2025
36AQI
7th September 2025
30AQI
8th September 2025
25AQI
9th September 2025
16AQI
10th September 2025
19AQI
11th September 2025
23AQI
12th September 2025
33AQI
13th September 2025
39AQI
14th September 2025
32AQI
15th September 2025
29AQI
16th September 2025
37AQI
17th September 2025
41AQI
18th September 2025
42AQI
19th September 2025
43AQI
20th September 2025
50AQI
21st September 2025
35AQI
22nd September 2025
37AQI
23rd September 2025
40AQI
24th September 2025
48AQI
25th September 2025
36AQI
26th September 2025
42AQI
27th September 2025
47AQI
28th September 2025
30AQI
29th September 2025
27AQI
30th September 2025
25AQI
1st October 2025
15AQI
2nd October 2025
41AQI
3rd October 2025
25AQI
4th October 2025
36AQI
5th October 2025
38AQI
6th October 2025
14AQI
7th October 2025
41AQI
8th October 2025
54AQI
9th October 2025
45AQI
10th October 2025
43AQI
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

39AQI

26AQI

23AQI

28AQI

25AQI

34AQI

32AQI

35AQI

34AQI

35AQI

No. of days

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

202531AQI

22
9
28
31
30
31
30
28
3
31
30
9
1
270
13

Highest AQI recorded in

January

39AQI

Lowest AQI recorded in

March

23AQI

202427AQI

25
25
1
31
28
31
26
4
30
1
31
30
30
1
26
4
22
9
335
20

Highest AQI recorded in

December

38AQI

Lowest AQI recorded in

March

14AQI

202330AQI

31
22
6
31
26
28
1
30
27
4
27
3
26
4
27
4
17
12
20
10
312
44

Highest AQI recorded in

December

45AQI

Lowest AQI recorded in

March

13AQI

202226AQI

12
16
19
3
31
30
31
30
24
4
27
2
1
30
1
25
5
19
12
282
39
1

Highest AQI recorded in

January

50AQI

Lowest AQI recorded in

May

11AQI

202137AQI

21
9
25
3
30
1
27
3
31
30
28
3
11
13
3
4
17
12
1
29
2
18
12
22
9
289
67
4
4

Highest AQI recorded in

August

74AQI

Lowest AQI recorded in

May

25AQI

202049AQI

11
20
18
30
31
16
5
5
5
6
10
9
4
1
18
9
2
2
14
16
17
14
181
54
16
11
1

Highest AQI recorded in

September

98AQI

Lowest AQI recorded in

May

18AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2020(Avg.)
49AQI
Least Polluted Year Recorded
2022(Avg.)
26AQI

Gridley's annual 2025 AQI (31) shows an average percentage change of -3.3% (improved AQI) compared to previous years: 2020 (49), 2021 (37), 2022 (26), 2023 (30), 2024 (27).