Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Pomona, 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

Pomona, California, United States

2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
1st Oct 2025
54AQI
Lowest AQI recorded on
2nd Oct 2025
39AQI

Same Day Analysis (3rd October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 44 of Good air quality on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 3rd Oct - 4th Oct 2025

Pomona, California, United States

AQI
Day
Night
.

6 AM3rd Oct 2025

6 PM

5 AM4th Oct 2025

Day time
Avg. Highest Time
11AM3rd Oct

50AQI

Avg. Lowest Time
7AM3rd Oct

32AQI

Night time
Avg. Highest Time
10PM3rd Oct

47AQI

Avg. Lowest Time
2AM4th Oct

38AQI

In the last 24 hours,

Pomona's AQI reached its highest point of 50 at 11 AM during the Day, while the lowest point, undefined, was recorded at 5 AM during the Night between 3rd Oct and 4th Oct 2025.

Day & Night AQI Trend : Sep - Oct 2025

Pomona, California, United States

SepOct
04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th
Day
Night
4th Sep 2025296 AMAQI
4th Sep 2025347 AMAQI
4th Sep 2025428 AMAQI
4th Sep 2025429 AMAQI
4th Sep 20253210 AMAQI
4th Sep 20253411 AMAQI
4th Sep 20253712 PMAQI
4th Sep 2025401 PMAQI
4th Sep 2025412 PMAQI
4th Sep 2025403 PMAQI
4th Sep 2025384 PMAQI
4th Sep 2025385 PMAQI
4th Sep 2025366 PMAQI
4th Sep 2025377 PMAQI
4th Sep 2025388 PMAQI
4th Sep 2025379 PMAQI
4th Sep 20253610 PMAQI
4th Sep 20253111 PMAQI
5th Sep 20253112 AMAQI
5th Sep 2025321 AMAQI
5th Sep 2025352 AMAQI
5th Sep 2025363 AMAQI
5th Sep 2025374 AMAQI
5th Sep 2025365 AMAQI

28°C23/36°C

5th Sep 2025366 AMAQI
5th Sep 2025357 AMAQI
5th Sep 2025368 AMAQI
5th Sep 2025389 AMAQI
5th Sep 20253810 AMAQI
5th Sep 20254411 AMAQI
5th Sep 20254812 PMAQI
5th Sep 2025491 PMAQI
5th Sep 2025462 PMAQI
5th Sep 2025483 PMAQI
5th Sep 2025514 PMAQI
5th Sep 2025515 PMAQI
5th Sep 2025506 PMAQI
5th Sep 2025397 PMAQI
5th Sep 2025508 PMAQI
5th Sep 2025509 PMAQI
5th Sep 20254910 PMAQI
5th Sep 20255111 PMAQI
6th Sep 20255412 AMAQI
6th Sep 2025521 AMAQI
6th Sep 2025492 AMAQI
6th Sep 2025503 AMAQI
6th Sep 2025524 AMAQI
6th Sep 2025525 AMAQI

27°C21/35°C

6th Sep 2025526 AMAQI
6th Sep 2025527 AMAQI
6th Sep 2025508 AMAQI
6th Sep 2025489 AMAQI
6th Sep 20254810 AMAQI
6th Sep 20255211 AMAQI
6th Sep 20255612 PMAQI
6th Sep 2025571 PMAQI
6th Sep 2025572 PMAQI
6th Sep 2025563 PMAQI
6th Sep 2025534 PMAQI
6th Sep 2025495 PMAQI
6th Sep 2025436 PMAQI
6th Sep 2025507 PMAQI
6th Sep 2025498 PMAQI
6th Sep 2025429 PMAQI
6th Sep 20254210 PMAQI
6th Sep 20254411 PMAQI
7th Sep 20254412 AMAQI
7th Sep 2025431 AMAQI
7th Sep 2025452 AMAQI
7th Sep 2025433 AMAQI
7th Sep 2025454 AMAQI
7th Sep 2025465 AMAQI

27°C21/36°C

7th Sep 2025466 AMAQI
7th Sep 2025457 AMAQI
7th Sep 2025448 AMAQI
7th Sep 2025429 AMAQI
7th Sep 20254110 AMAQI
7th Sep 20254011 AMAQI
7th Sep 20253712 PMAQI
7th Sep 2025401 PMAQI
7th Sep 2025392 PMAQI
7th Sep 2025353 PMAQI
7th Sep 2025324 PMAQI
7th Sep 2025305 PMAQI
7th Sep 2025286 PMAQI
7th Sep 2025417 PMAQI
7th Sep 2025348 PMAQI
7th Sep 2025269 PMAQI
7th Sep 20252410 PMAQI
7th Sep 20252811 PMAQI
8th Sep 20253012 AMAQI
8th Sep 2025291 AMAQI
8th Sep 2025302 AMAQI
8th Sep 2025273 AMAQI
8th Sep 2025264 AMAQI
8th Sep 2025265 AMAQI

28°C22/36°C

8th Sep 2025256 AMAQI
8th Sep 2025287 AMAQI
8th Sep 2025318 AMAQI
8th Sep 2025309 AMAQI
8th Sep 20253110 AMAQI
8th Sep 20253311 AMAQI
8th Sep 20253512 PMAQI
8th Sep 2025321 PMAQI
8th Sep 2025262 PMAQI
8th Sep 2025213 PMAQI
8th Sep 2025194 PMAQI
8th Sep 2025195 PMAQI
8th Sep 2025186 PMAQI
8th Sep 2025247 PMAQI
8th Sep 2025218 PMAQI
8th Sep 2025209 PMAQI
8th Sep 20252010 PMAQI
8th Sep 20251811 PMAQI
9th Sep 20251812 AMAQI
9th Sep 2025191 AMAQI
9th Sep 2025192 AMAQI
9th Sep 2025193 AMAQI
9th Sep 2025204 AMAQI
9th Sep 2025195 AMAQI

26°C22/34°C

9th Sep 2025216 AMAQI
9th Sep 2025227 AMAQI
9th Sep 2025228 AMAQI
9th Sep 2025249 AMAQI
9th Sep 20252510 AMAQI
9th Sep 20252611 AMAQI
9th Sep 20252612 PMAQI
9th Sep 2025251 PMAQI
9th Sep 2025262 PMAQI
9th Sep 2025253 PMAQI
9th Sep 2025254 PMAQI
9th Sep 2025265 PMAQI
9th Sep 2025276 PMAQI
9th Sep 2025217 PMAQI
9th Sep 2025248 PMAQI
9th Sep 2025279 PMAQI
9th Sep 20252710 PMAQI
9th Sep 20252611 PMAQI
10th Sep 20252612 AMAQI
10th Sep 2025261 AMAQI
10th Sep 2025262 AMAQI
10th Sep 2025253 AMAQI
10th Sep 2025254 AMAQI
10th Sep 2025265 AMAQI

23°C19/30°C

10th Sep 2025266 AMAQI
10th Sep 2025267 AMAQI
10th Sep 2025298 AMAQI
10th Sep 2025329 AMAQI
10th Sep 20253610 AMAQI
10th Sep 20253511 AMAQI
10th Sep 20253412 PMAQI
10th Sep 2025331 PMAQI
10th Sep 2025322 PMAQI
10th Sep 2025323 PMAQI
10th Sep 2025294 PMAQI
10th Sep 2025265 PMAQI
10th Sep 2025276 PMAQI
10th Sep 2025287 PMAQI
10th Sep 2025298 PMAQI
10th Sep 2025299 PMAQI
10th Sep 20252910 PMAQI
10th Sep 20253111 PMAQI
11th Sep 20252912 AMAQI
11th Sep 2025301 AMAQI
11th Sep 2025282 AMAQI
11th Sep 2025283 AMAQI
11th Sep 2025294 AMAQI
11th Sep 2025315 AMAQI

21°C19/27°C

11th Sep 2025306 AMAQI
11th Sep 2025297 AMAQI
11th Sep 2025288 AMAQI
11th Sep 2025299 AMAQI
11th Sep 20253110 AMAQI
11th Sep 20253111 AMAQI
11th Sep 20253112 PMAQI
11th Sep 2025321 PMAQI
11th Sep 2025342 PMAQI
11th Sep 2025333 PMAQI
11th Sep 2025334 PMAQI
11th Sep 2025325 PMAQI
11th Sep 2025306 PMAQI
11th Sep 2025317 PMAQI
11th Sep 2025338 PMAQI
11th Sep 2025339 PMAQI
11th Sep 20253210 PMAQI
11th Sep 20253211 PMAQI
12th Sep 20253012 AMAQI
12th Sep 2025311 AMAQI
12th Sep 2025312 AMAQI
12th Sep 2025313 AMAQI
12th Sep 2025324 AMAQI
12th Sep 2025345 AMAQI

21°C18/28°C

12th Sep 2025386 AMAQI
12th Sep 2025377 AMAQI
12th Sep 2025378 AMAQI
12th Sep 2025409 AMAQI
12th Sep 20253910 AMAQI
12th Sep 20254011 AMAQI
12th Sep 20253812 PMAQI
12th Sep 2025361 PMAQI
12th Sep 2025382 PMAQI
12th Sep 2025363 PMAQI
12th Sep 2025354 PMAQI
12th Sep 2025345 PMAQI
12th Sep 2025346 PMAQI
12th Sep 2025367 PMAQI
12th Sep 2025398 PMAQI
12th Sep 2025439 PMAQI
12th Sep 20254410 PMAQI
12th Sep 20254311 PMAQI
13th Sep 20254412 AMAQI
13th Sep 2025441 AMAQI
13th Sep 2025432 AMAQI
13th Sep 2025433 AMAQI
13th Sep 2025444 AMAQI
13th Sep 2025465 AMAQI

21°C18/25°C

13th Sep 2025476 AMAQI
13th Sep 2025477 AMAQI
13th Sep 2025488 AMAQI
13th Sep 2025459 AMAQI
13th Sep 20254510 AMAQI
13th Sep 20254411 AMAQI
13th Sep 20254412 PMAQI
13th Sep 2025451 PMAQI
13th Sep 2025462 PMAQI
13th Sep 2025463 PMAQI
13th Sep 2025484 PMAQI
13th Sep 2025495 PMAQI
13th Sep 2025486 PMAQI
13th Sep 2025467 PMAQI
13th Sep 2025478 PMAQI
13th Sep 2025479 PMAQI
13th Sep 20254710 PMAQI
13th Sep 20254611 PMAQI
14th Sep 20254812 AMAQI
14th Sep 2025471 AMAQI
14th Sep 2025462 AMAQI
14th Sep 2025463 AMAQI
14th Sep 2025454 AMAQI
14th Sep 2025435 AMAQI

22°C19/29°C

14th Sep 2025436 AMAQI
14th Sep 2025477 AMAQI
14th Sep 2025488 AMAQI
14th Sep 2025509 AMAQI
14th Sep 20254910 AMAQI
14th Sep 20254911 AMAQI
14th Sep 20255112 PMAQI
14th Sep 2025531 PMAQI
14th Sep 2025522 PMAQI
14th Sep 2025533 PMAQI
14th Sep 2025544 PMAQI
14th Sep 2025525 PMAQI
14th Sep 2025526 PMAQI
14th Sep 2025487 PMAQI
14th Sep 2025518 PMAQI
14th Sep 2025559 PMAQI
14th Sep 20255610 PMAQI
14th Sep 20255711 PMAQI
15th Sep 20255612 AMAQI
15th Sep 2025531 AMAQI
15th Sep 2025532 AMAQI
15th Sep 2025513 AMAQI
15th Sep 2025524 AMAQI
15th Sep 2025525 AMAQI

24°C18/32°C

15th Sep 2025526 AMAQI
15th Sep 2025487 AMAQI
15th Sep 2025398 AMAQI
15th Sep 2025589 AMAQI
15th Sep 20255410 AMAQI
15th Sep 20255611 AMAQI
15th Sep 20255512 PMAQI
15th Sep 2025521 PMAQI
15th Sep 2025512 PMAQI
15th Sep 2025523 PMAQI
15th Sep 2025544 PMAQI
15th Sep 2025505 PMAQI
15th Sep 2025486 PMAQI
15th Sep 2025527 PMAQI
15th Sep 2025518 PMAQI
15th Sep 2025509 PMAQI
15th Sep 20255110 PMAQI
15th Sep 20255211 PMAQI
16th Sep 20255112 AMAQI
16th Sep 2025481 AMAQI
16th Sep 2025462 AMAQI
16th Sep 2025473 AMAQI
16th Sep 2025464 AMAQI
16th Sep 2025455 AMAQI

26°C19/35°C

16th Sep 2025476 AMAQI
16th Sep 2025497 AMAQI
16th Sep 2025488 AMAQI
16th Sep 2025479 AMAQI
16th Sep 20254610 AMAQI
16th Sep 20254611 AMAQI
16th Sep 20254612 PMAQI
16th Sep 2025481 PMAQI
16th Sep 2025442 PMAQI
16th Sep 2025443 PMAQI
16th Sep 2025384 PMAQI
16th Sep 2025405 PMAQI
16th Sep 2025396 PMAQI
16th Sep 2025427 PMAQI
16th Sep 2025418 PMAQI
16th Sep 2025399 PMAQI
16th Sep 20253910 PMAQI
16th Sep 20253611 PMAQI
17th Sep 20252812 AMAQI
17th Sep 2025281 AMAQI
17th Sep 2025282 AMAQI
17th Sep 2025293 AMAQI
17th Sep 2025294 AMAQI
17th Sep 2025305 AMAQI

29°C23/38°C

17th Sep 2025296 AMAQI
17th Sep 2025307 AMAQI
17th Sep 2025288 AMAQI
17th Sep 2025289 AMAQI
17th Sep 20252810 AMAQI
17th Sep 20252811 AMAQI
17th Sep 20253012 PMAQI
17th Sep 2025291 PMAQI
17th Sep 2025272 PMAQI
17th Sep 2025283 PMAQI
17th Sep 2025274 PMAQI
17th Sep 2025285 PMAQI
17th Sep 2025286 PMAQI
17th Sep 2025277 PMAQI
17th Sep 2025288 PMAQI
17th Sep 2025299 PMAQI
17th Sep 20252810 PMAQI
17th Sep 20252811 PMAQI
18th Sep 20252812 AMAQI
18th Sep 2025261 AMAQI
18th Sep 2025262 AMAQI
18th Sep 2025273 AMAQI
18th Sep 2025244 AMAQI
18th Sep 2025265 AMAQI

27°C23/34°C

18th Sep 2025336 AMAQI
18th Sep 2025267 AMAQI
18th Sep 2025278 AMAQI
18th Sep 2025259 AMAQI
18th Sep 20252810 AMAQI
18th Sep 20252511 AMAQI
18th Sep 20252712 PMAQI
18th Sep 2025251 PMAQI
18th Sep 2025242 PMAQI
18th Sep 2025253 PMAQI
18th Sep 2025274 PMAQI
18th Sep 2025285 PMAQI
18th Sep 2025286 PMAQI
18th Sep 2025267 PMAQI
18th Sep 2025278 PMAQI
18th Sep 2025309 PMAQI
18th Sep 20253010 PMAQI
18th Sep 20253211 PMAQI
19th Sep 20253112 AMAQI
19th Sep 2025341 AMAQI
19th Sep 2025342 AMAQI
19th Sep 2025333 AMAQI
19th Sep 2025344 AMAQI
19th Sep 2025385 AMAQI

25°C20/29°C

19th Sep 2025406 AMAQI
19th Sep 2025437 AMAQI
19th Sep 2025418 AMAQI
19th Sep 2025429 AMAQI
19th Sep 20254210 AMAQI
19th Sep 20254111 AMAQI
19th Sep 20254412 PMAQI
19th Sep 2025411 PMAQI
19th Sep 2025382 PMAQI
19th Sep 2025363 PMAQI
19th Sep 2025334 PMAQI
19th Sep 2025315 PMAQI
19th Sep 2025306 PMAQI
19th Sep 2025347 PMAQI
19th Sep 2025348 PMAQI
19th Sep 2025329 PMAQI
19th Sep 20253010 PMAQI
19th Sep 20253011 PMAQI
20th Sep 20253012 AMAQI
20th Sep 2025321 AMAQI
20th Sep 2025322 AMAQI
20th Sep 2025323 AMAQI
20th Sep 2025264 AMAQI
20th Sep 2025285 AMAQI

24°C21/30°C

20th Sep 2025286 AMAQI
20th Sep 2025297 AMAQI
20th Sep 2025278 AMAQI
20th Sep 2025269 AMAQI
20th Sep 20252710 AMAQI
20th Sep 20253011 AMAQI
20th Sep 20253112 PMAQI
20th Sep 2025321 PMAQI
20th Sep 2025342 PMAQI
20th Sep 2025313 PMAQI
20th Sep 2025314 PMAQI
20th Sep 2025315 PMAQI
20th Sep 2025326 PMAQI
20th Sep 2025297 PMAQI
20th Sep 2025288 PMAQI
20th Sep 2025299 PMAQI
20th Sep 20253010 PMAQI
20th Sep 20252911 PMAQI
21st Sep 20252912 AMAQI
21st Sep 2025301 AMAQI
21st Sep 2025312 AMAQI
21st Sep 2025303 AMAQI
21st Sep 2025324 AMAQI
21st Sep 2025275 AMAQI

25°C20/33°C

21st Sep 2025266 AMAQI
21st Sep 2025277 AMAQI
21st Sep 2025288 AMAQI
21st Sep 2025289 AMAQI
21st Sep 20252810 AMAQI
21st Sep 20253111 AMAQI
21st Sep 20252912 PMAQI
21st Sep 2025291 PMAQI
21st Sep 2025332 PMAQI
21st Sep 2025313 PMAQI
21st Sep 2025334 PMAQI
21st Sep 2025335 PMAQI
21st Sep 2025326 PMAQI
21st Sep 2025307 PMAQI
21st Sep 2025308 PMAQI
21st Sep 2025299 PMAQI
21st Sep 20252910 PMAQI
21st Sep 20252911 PMAQI
22nd Sep 20253012 AMAQI
22nd Sep 2025311 AMAQI
22nd Sep 2025302 AMAQI
22nd Sep 2025303 AMAQI
22nd Sep 2025304 AMAQI
22nd Sep 2025315 AMAQI

24°C16/33°C

22nd Sep 2025306 AMAQI
22nd Sep 2025287 AMAQI
22nd Sep 2025298 AMAQI
22nd Sep 2025309 AMAQI
22nd Sep 20252910 AMAQI
22nd Sep 20253211 AMAQI
22nd Sep 20253212 PMAQI
22nd Sep 2025341 PMAQI
22nd Sep 2025352 PMAQI
22nd Sep 2025343 PMAQI
22nd Sep 2025364 PMAQI
22nd Sep 2025365 PMAQI
22nd Sep 2025346 PMAQI
22nd Sep 2025337 PMAQI
22nd Sep 2025328 PMAQI
22nd Sep 2025339 PMAQI
22nd Sep 20253410 PMAQI
22nd Sep 20253211 PMAQI
23rd Sep 20253312 AMAQI
23rd Sep 2025321 AMAQI
23rd Sep 2025362 AMAQI
23rd Sep 2025323 AMAQI
23rd Sep 2025314 AMAQI
23rd Sep 2025325 AMAQI

25°C17/36°C

23rd Sep 2025316 AMAQI
23rd Sep 2025347 AMAQI
23rd Sep 2025388 AMAQI
23rd Sep 2025369 AMAQI
23rd Sep 20253510 AMAQI
23rd Sep 20253811 AMAQI
23rd Sep 20254112 PMAQI
23rd Sep 2025421 PMAQI
23rd Sep 2025442 PMAQI
23rd Sep 2025413 PMAQI
23rd Sep 2025414 PMAQI
23rd Sep 2025435 PMAQI
23rd Sep 2025446 PMAQI
23rd Sep 2025387 PMAQI
23rd Sep 2025388 PMAQI
23rd Sep 2025439 PMAQI
23rd Sep 20254310 PMAQI
23rd Sep 20254411 PMAQI
24th Sep 20254112 AMAQI
24th Sep 2025411 AMAQI
24th Sep 2025402 AMAQI
24th Sep 2025393 AMAQI
24th Sep 2025374 AMAQI
24th Sep 2025335 AMAQI

27°C19/38°C

24th Sep 2025426 AMAQI
24th Sep 2025407 AMAQI
24th Sep 2025438 AMAQI
24th Sep 2025419 AMAQI
24th Sep 20254310 AMAQI
24th Sep 20254411 AMAQI
24th Sep 20254412 PMAQI
24th Sep 2025411 PMAQI
24th Sep 2025442 PMAQI
24th Sep 2025463 PMAQI
24th Sep 2025464 PMAQI
24th Sep 2025465 PMAQI
24th Sep 2025466 PMAQI
24th Sep 2025427 PMAQI
24th Sep 2025428 PMAQI
24th Sep 2025419 PMAQI
24th Sep 20254010 PMAQI
24th Sep 20254111 PMAQI
25th Sep 20254012 AMAQI
25th Sep 2025371 AMAQI
25th Sep 2025322 AMAQI
25th Sep 2025263 AMAQI
25th Sep 2025254 AMAQI
25th Sep 2025265 AMAQI

26°C20/36°C

25th Sep 2025286 AMAQI
25th Sep 2025307 AMAQI
25th Sep 2025268 AMAQI
25th Sep 2025289 AMAQI
25th Sep 20253010 AMAQI
25th Sep 20253811 AMAQI
25th Sep 20253712 PMAQI
25th Sep 2025361 PMAQI
25th Sep 2025402 PMAQI
25th Sep 2025413 PMAQI
25th Sep 2025514 PMAQI
25th Sep 2025515 PMAQI
25th Sep 2025486 PMAQI
25th Sep 2025437 PMAQI
25th Sep 2025338 PMAQI
25th Sep 2025319 PMAQI
25th Sep 20253410 PMAQI
25th Sep 20253311 PMAQI
26th Sep 20253212 AMAQI
26th Sep 2025301 AMAQI
26th Sep 2025322 AMAQI
26th Sep 2025313 AMAQI
26th Sep 2025304 AMAQI
26th Sep 2025335 AMAQI

22°C17/31°C

26th Sep 2025266 AMAQI
26th Sep 2025227 AMAQI
26th Sep 2025218 AMAQI
26th Sep 2025219 AMAQI
26th Sep 20252510 AMAQI
26th Sep 20252811 AMAQI
26th Sep 20252612 PMAQI
26th Sep 2025271 PMAQI
26th Sep 2025282 PMAQI
26th Sep 2025303 PMAQI
26th Sep 2025304 PMAQI
26th Sep 2025325 PMAQI
26th Sep 2025316 PMAQI
26th Sep 2025287 PMAQI
26th Sep 2025258 PMAQI
26th Sep 2025289 PMAQI
26th Sep 20252710 PMAQI
26th Sep 20252511 PMAQI
27th Sep 20252112 AMAQI
27th Sep 2025261 AMAQI
27th Sep 2025232 AMAQI
27th Sep 2025263 AMAQI
27th Sep 2025274 AMAQI
27th Sep 2025255 AMAQI

20°C18/25°C

27th Sep 2025246 AMAQI
27th Sep 2025247 AMAQI
27th Sep 2025288 AMAQI
27th Sep 2025259 AMAQI
27th Sep 20252010 AMAQI
27th Sep 20252111 AMAQI
27th Sep 20252312 PMAQI
27th Sep 2025211 PMAQI
27th Sep 2025172 PMAQI
27th Sep 2025173 PMAQI
27th Sep 2025284 PMAQI
27th Sep 2025275 PMAQI
27th Sep 2025276 PMAQI
27th Sep 2025317 PMAQI
27th Sep 2025378 PMAQI
27th Sep 2025399 PMAQI
27th Sep 20253610 PMAQI
27th Sep 20253511 PMAQI
28th Sep 20253612 AMAQI
28th Sep 2025361 AMAQI
28th Sep 2025362 AMAQI
28th Sep 2025363 AMAQI
28th Sep 2025374 AMAQI
28th Sep 2025355 AMAQI

21°C18/29°C

28th Sep 2025316 AMAQI
28th Sep 2025307 AMAQI
28th Sep 2025368 AMAQI
28th Sep 2025259 AMAQI
28th Sep 20252310 AMAQI
28th Sep 20252511 AMAQI
28th Sep 20253212 PMAQI
28th Sep 2025331 PMAQI
28th Sep 2025282 PMAQI
28th Sep 2025273 PMAQI
28th Sep 2025284 PMAQI
28th Sep 2025335 PMAQI
28th Sep 2025426 PMAQI
28th Sep 2025447 PMAQI
28th Sep 2025468 PMAQI
28th Sep 2025499 PMAQI
28th Sep 20254610 PMAQI
28th Sep 20254311 PMAQI
29th Sep 20254812 AMAQI
29th Sep 2025481 AMAQI
29th Sep 2025462 AMAQI
29th Sep 2025413 AMAQI
29th Sep 2025364 AMAQI
29th Sep 2025345 AMAQI

21°C16/30°C

29th Sep 2025396 AMAQI
29th Sep 2025367 AMAQI
29th Sep 2025358 AMAQI
29th Sep 2025339 AMAQI
29th Sep 20253610 AMAQI
29th Sep 20253911 AMAQI
29th Sep 20253612 PMAQI
29th Sep 2025321 PMAQI
29th Sep 2025342 PMAQI
29th Sep 2025343 PMAQI
29th Sep 2025384 PMAQI
29th Sep 2025385 PMAQI
29th Sep 2025406 PMAQI
29th Sep 2025367 PMAQI
29th Sep 2025408 PMAQI
29th Sep 2025419 PMAQI
29th Sep 20253710 PMAQI
29th Sep 20253711 PMAQI
30th Sep 20253612 AMAQI
30th Sep 2025321 AMAQI
30th Sep 2025362 AMAQI
30th Sep 2025443 AMAQI
30th Sep 2025484 AMAQI
30th Sep 2025295 AMAQI

21°C15/30°C

30th Sep 2025306 AMAQI
30th Sep 2025337 AMAQI
30th Sep 2025338 AMAQI
30th Sep 2025339 AMAQI
30th Sep 20253110 AMAQI
30th Sep 20253311 AMAQI
30th Sep 20253512 PMAQI
30th Sep 2025311 PMAQI
30th Sep 2025342 PMAQI
30th Sep 2025363 PMAQI
30th Sep 2025314 PMAQI
30th Sep 2025335 PMAQI
30th Sep 2025356 PMAQI
30th Sep 2025347 PMAQI
30th Sep 2025368 PMAQI
30th Sep 2025359 PMAQI
30th Sep 20254510 PMAQI
30th Sep 20254811 PMAQI
1st Oct 20254212 AMAQI
1st Oct 2025411 AMAQI
1st Oct 2025392 AMAQI
1st Oct 2025383 AMAQI
1st Oct 2025324 AMAQI
1st Oct 2025455 AMAQI

21°C16/29°C

1st Oct 2025526 AMAQI
1st Oct 2025477 AMAQI
1st Oct 2025448 AMAQI
1st Oct 2025389 AMAQI
1st Oct 20253610 AMAQI
1st Oct 20253611 AMAQI
1st Oct 20254012 PMAQI
1st Oct 2025391 PMAQI
1st Oct 2025342 PMAQI
1st Oct 2025323 PMAQI
1st Oct 2025344 PMAQI
1st Oct 2025325 PMAQI
1st Oct 2025336 PMAQI
1st Oct 2025357 PMAQI
1st Oct 2025328 PMAQI
1st Oct 2025309 PMAQI
1st Oct 20252810 PMAQI
1st Oct 20252611 PMAQI
2nd Oct 20252312 AMAQI
2nd Oct 2025291 AMAQI
2nd Oct 2025292 AMAQI
2nd Oct 2025243 AMAQI
2nd Oct 2025174 AMAQI
2nd Oct 2025215 AMAQI

21°C14/30°C

2nd Oct 2025296 AMAQI
2nd Oct 2025287 AMAQI
2nd Oct 2025258 AMAQI
2nd Oct 2025299 AMAQI
2nd Oct 20253110 AMAQI
2nd Oct 20253911 AMAQI
2nd Oct 20254712 PMAQI
2nd Oct 2025581 PMAQI
2nd Oct 2025582 PMAQI
2nd Oct 2025543 PMAQI
2nd Oct 2025514 PMAQI
2nd Oct 2025355 PMAQI
2nd Oct 2025276 PMAQI
2nd Oct 2025317 PMAQI
2nd Oct 2025368 PMAQI
2nd Oct 2025389 PMAQI
2nd Oct 20254310 PMAQI
2nd Oct 20254211 PMAQI
3rd Oct 20253712 AMAQI
3rd Oct 2025461 AMAQI
3rd Oct 2025412 AMAQI
3rd Oct 2025343 AMAQI
3rd Oct 2025294 AMAQI
3rd Oct 2025315 AMAQI

21°C14/31°C

3rd Oct 2025336 AMAQI
3rd Oct 2025327 AMAQI
3rd Oct 2025418 AMAQI
3rd Oct 2025419 AMAQI
3rd Oct 20254810 AMAQI
3rd Oct 20255011 AMAQI
3rd Oct 20254512 PMAQI
3rd Oct 2025451 PMAQI
3rd Oct 2025502 PMAQI
3rd Oct 2025373 PMAQI
3rd Oct 2025364 PMAQI
3rd Oct 2025445 PMAQI
3rd Oct 2025416 PMAQI
3rd Oct 2025447 PMAQI
3rd Oct 2025458 PMAQI
3rd Oct 2025459 PMAQI
3rd Oct 20254710 PMAQI
3rd Oct 20254611 PMAQI
4th Oct 20254412 AMAQI
4th Oct 2025461 AMAQI
4th Oct 2025382 AMAQI
4th Oct 2025403 AMAQI

19°C15/25°C

6 AM
12 PM
6 PM
12 AM
5 AM

--°C/°C

Day time
Avg. Highest Time
11 AM - 6 PM

37AQI

8 hours / Day
240 hours / Month
Avg. Lowest Time
6 AM - 10 AM

35AQI

5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 AM to 6 PM (Avg. 37), while the lowest AQI was between 6 AM to 10 AM (Avg. 35).
Night time
Avg. Highest Time
7 PM - 11 PM

37AQI

5 hours / Day
150 hours / Month
Avg. Lowest Time
12 AM - 5 AM

35AQI

6 hours / Day
180 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 PM to 11 PM (Avg. 37), while the lowest AQI was between 12 AM to 5 AM (Avg. 35).

2025 Days Vs Air Quality

Pomona, California, United States

2025

65%

125

35%

67

Total number of days with different AQI categories in last 277 days in 2025 (88 days remaining)

Good
125 Days
Moderate
67 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 65%

Health Risk Level:

Moderate

In 2025, 65% of 277 days were within WHO’s safe air quality limits, and 35% exceeded them. The risk of health issues is Moderate, particularly for individuals with respiratory or heart conditions.

Annual Air Quality Insights

Pomona, 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
2nd January 2025
3rd January 2025
4th January 2025
5th January 2025
6th January 2025
7th January 2025
8th January 2025
9th January 2025
10th January 2025
11th January 2025
12th January 2025
13th January 2025
14th January 2025
15th January 2025
16th January 2025
17th January 2025
18th January 2025
19th January 2025
20th January 2025
21st January 2025
22nd January 2025
23rd January 2025
24th January 2025
25th January 2025
26th January 2025
27th January 2025
28th January 2025
29th January 2025
30th January 2025
31st January 2025
1st February 2025
2nd February 2025
3rd February 2025
4th February 2025
5th February 2025
6th February 2025
7th February 2025
8th February 2025
9th February 2025
10th February 2025
11th February 2025
12th February 2025
13th February 2025
14th February 2025
15th February 2025
16th February 2025
17th February 2025
18th February 2025
19th February 2025
20th February 2025
21st February 2025
22nd February 2025
23rd February 2025
24th February 2025
25th February 2025
26th February 2025
27th February 2025
28th February 2025
1st March 2025
2nd March 2025
3rd March 2025
4th March 2025
5th March 2025
6th March 2025
7th March 2025
8th March 2025
9th March 2025
10th March 2025
11th March 2025
12th March 2025
13th March 2025
14th March 2025
15th March 2025
16th March 2025
17th March 2025
18th March 2025
19th March 2025
20th March 2025
21st March 2025
22nd March 2025
23rd March 2025
24th March 2025
25th March 2025
26th March 2025
29AQI
27th March 2025
26AQI
28th March 2025
28AQI
29th March 2025
32AQI
30th March 2025
32AQI
31st March 2025
20AQI
1st April 2025
22AQI
2nd April 2025
24AQI
3rd April 2025
29AQI
4th April 2025
29AQI
5th April 2025
20AQI
6th April 2025
24AQI
7th April 2025
29AQI
8th April 2025
42AQI
9th April 2025
49AQI
10th April 2025
52AQI
11th April 2025
52AQI
12th April 2025
54AQI
13th April 2025
58AQI
14th April 2025
56AQI
15th April 2025
51AQI
16th April 2025
38AQI
17th April 2025
26AQI
18th April 2025
31AQI
19th April 2025
35AQI
20th April 2025
39AQI
21st April 2025
43AQI
22nd April 2025
55AQI
23rd April 2025
49AQI
24th April 2025
46AQI
25th April 2025
40AQI
26th April 2025
17AQI
27th April 2025
19AQI
28th April 2025
25AQI
29th April 2025
39AQI
30th April 2025
53AQI
1st May 2025
51AQI
2nd May 2025
46AQI
3rd May 2025
46AQI
4th May 2025
29AQI
5th May 2025
32AQI
6th May 2025
32AQI
7th May 2025
36AQI
8th May 2025
45AQI
9th May 2025
47AQI
10th May 2025
40AQI
11th May 2025
39AQI
12th May 2025
47AQI
13th May 2025
24AQI
14th May 2025
31AQI
15th May 2025
48AQI
16th May 2025
54AQI
17th May 2025
41AQI
18th May 2025
34AQI
19th May 2025
44AQI
20th May 2025
51AQI
21st May 2025
53AQI
22nd May 2025
59AQI
23rd May 2025
59AQI
24th May 2025
55AQI
25th May 2025
52AQI
26th May 2025
53AQI
27th May 2025
52AQI
28th May 2025
50AQI
29th May 2025
46AQI
30th May 2025
48AQI
31st May 2025
50AQI
1st June 2025
47AQI
2nd June 2025
37AQI
3rd June 2025
39AQI
4th June 2025
41AQI
5th June 2025
43AQI
6th June 2025
39AQI
7th June 2025
45AQI
8th June 2025
45AQI
9th June 2025
48AQI
10th June 2025
53AQI
11th June 2025
52AQI
12th June 2025
53AQI
13th June 2025
52AQI
14th June 2025
55AQI
15th June 2025
55AQI
16th June 2025
59AQI
17th June 2025
60AQI
18th June 2025
58AQI
19th June 2025
56AQI
20th June 2025
56AQI
21st June 2025
53AQI
22nd June 2025
53AQI
23rd June 2025
53AQI
24th June 2025
51AQI
25th June 2025
48AQI
26th June 2025
50AQI
27th June 2025
53AQI
28th June 2025
51AQI
29th June 2025
47AQI
30th June 2025
41AQI
1st July 2025
42AQI
2nd July 2025
44AQI
3rd July 2025
45AQI
4th July 2025
48AQI
5th July 2025
98AQI
6th July 2025
63AQI
7th July 2025
55AQI
8th July 2025
50AQI
9th July 2025
45AQI
10th July 2025
45AQI
11th July 2025
52AQI
12th July 2025
54AQI
13th July 2025
52AQI
14th July 2025
46AQI
15th July 2025
39AQI
16th July 2025
33AQI
17th July 2025
27AQI
18th July 2025
31AQI
19th July 2025
35AQI
20th July 2025
42AQI
21st July 2025
39AQI
22nd July 2025
30AQI
23rd July 2025
27AQI
24th July 2025
28AQI
25th July 2025
23AQI
26th July 2025
24AQI
27th July 2025
30AQI
28th July 2025
32AQI
29th July 2025
37AQI
30th July 2025
45AQI
31st July 2025
51AQI
1st August 2025
51AQI
2nd August 2025
49AQI
3rd August 2025
54AQI
4th August 2025
60AQI
5th August 2025
66AQI
6th August 2025
67AQI
7th August 2025
64AQI
8th August 2025
61AQI
9th August 2025
56AQI
10th August 2025
56AQI
11th August 2025
54AQI
12th August 2025
56AQI
13th August 2025
57AQI
14th August 2025
75AQI
15th August 2025
52AQI
16th August 2025
43AQI
17th August 2025
44AQI
18th August 2025
48AQI
19th August 2025
48AQI
20th August 2025
44AQI
21st August 2025
52AQI
22nd August 2025
68AQI
23rd August 2025
54AQI
24th August 2025
56AQI
25th August 2025
52AQI
26th August 2025
53AQI
27th August 2025
47AQI
28th August 2025
49AQI
29th August 2025
40AQI
30th August 2025
45AQI
31st August 2025
49AQI
1st September 2025
48AQI
2nd September 2025
45AQI
3rd September 2025
49AQI
4th September 2025
46AQI
5th September 2025
47AQI
6th September 2025
49AQI
7th September 2025
44AQI
8th September 2025
32AQI
9th September 2025
28AQI
10th September 2025
38AQI
11th September 2025
39AQI
12th September 2025
42AQI
13th September 2025
52AQI
14th September 2025
58AQI
15th September 2025
59AQI
16th September 2025
58AQI
17th September 2025
38AQI
18th September 2025
37AQI
19th September 2025
44AQI
20th September 2025
39AQI
21st September 2025
41AQI
22nd September 2025
44AQI
23rd September 2025
45AQI
24th September 2025
48AQI
25th September 2025
46AQI
26th September 2025
32AQI
27th September 2025
30AQI
28th September 2025
36AQI
29th September 2025
49AQI
30th September 2025
50AQI
1st October 2025
54AQI
2nd October 2025
39AQI
3rd October 2025
44AQI
4th October 2025
5th October 2025
6th October 2025
7th October 2025
8th October 2025
9th October 2025
10th October 2025
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

28AQI

38AQI

45AQI

50AQI

42AQI

54AQI

44AQI

46AQI

No. of days

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

202545AQI

6
22
8
21
10
13
17
24
7
11
20
26
4
2
1
125
67

Highest AQI recorded in

August

54AQI

Lowest AQI recorded in

March

28AQI

Most & Least Polluted Years Over the Last 1 Years

Most Polluted Year Recorded
2025(Avg.)
45AQI
Least Polluted Year Recorded
2025(Avg.)
45AQI

Pomona's annual 2025 AQI (45) shows an average percentage change of NaN% (improved AQI) compared to previous years: .