Pasadena, 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
Pasadena, California, United States
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
6th Aug 2025
69AQILowest AQI recorded on
2nd Aug 2025
50AQISame Day Analysis (10th August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 55 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 10th Aug - 11th Aug 2025
Pasadena, California, United States
AQI
Day
Night
.
6 AM10th Aug 2025
7 PM
5 AM11th Aug 2025
Day time
Avg. Highest Time
11AM10th Aug
42AQI
Avg. Lowest Time
7AM10th Aug
38AQI
Night time
Avg. Highest Time
2AM11th Aug
48AQI
Avg. Lowest Time
11PM10th Aug
40AQI
In the last 24 hours,
Pasadena's AQI reached its highest point of 48 at 2 AM during the Night, while the lowest point, 38, was recorded at 7 AM during the Day between 10th Aug and 11th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Pasadena, California, United States
JulAug
12th - 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 - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th
Day
Night
12th Jul 2025436 AMAQI
12th Jul 2025467 AMAQI
12th Jul 2025468 AMAQI
12th Jul 2025469 AMAQI
12th Jul 20254710 AMAQI
12th Jul 20254711 AMAQI
12th Jul 20254812 PMAQI
12th Jul 2025481 PMAQI
12th Jul 2025502 PMAQI
12th Jul 2025503 PMAQI
12th Jul 2025494 PMAQI
12th Jul 2025495 PMAQI
12th Jul 2025486 PMAQI
12th Jul 2025477 PMAQI
12th Jul 2025468 PMAQI
12th Jul 2025489 PMAQI
12th Jul 20254710 PMAQI
12th Jul 20254611 PMAQI
13th Jul 20254512 AMAQI
13th Jul 2025451 AMAQI
13th Jul 2025412 AMAQI
13th Jul 2025393 AMAQI
13th Jul 2025364 AMAQI
13th Jul 2025355 AMAQI
23°C17/30°C
13th Jul 2025356 AMAQI
13th Jul 2025417 AMAQI
13th Jul 2025428 AMAQI
13th Jul 2025419 AMAQI
13th Jul 20254310 AMAQI
13th Jul 20254411 AMAQI
13th Jul 20254412 PMAQI
13th Jul 2025441 PMAQI
13th Jul 2025462 PMAQI
13th Jul 2025463 PMAQI
13th Jul 2025444 PMAQI
13th Jul 2025445 PMAQI
13th Jul 2025436 PMAQI
13th Jul 2025437 PMAQI
13th Jul 2025428 PMAQI
13th Jul 2025419 PMAQI
13th Jul 20254110 PMAQI
13th Jul 20254011 PMAQI
14th Jul 20253812 AMAQI
14th Jul 2025391 AMAQI
14th Jul 2025382 AMAQI
14th Jul 2025363 AMAQI
14th Jul 2025304 AMAQI
14th Jul 2025315 AMAQI
23°C17/31°C
14th Jul 2025316 AMAQI
14th Jul 2025337 AMAQI
14th Jul 2025358 AMAQI
14th Jul 2025369 AMAQI
14th Jul 20254010 AMAQI
14th Jul 20254111 AMAQI
14th Jul 20254312 PMAQI
14th Jul 2025441 PMAQI
14th Jul 2025442 PMAQI
14th Jul 2025433 PMAQI
14th Jul 2025444 PMAQI
14th Jul 2025425 PMAQI
14th Jul 2025406 PMAQI
14th Jul 2025407 PMAQI
14th Jul 2025398 PMAQI
14th Jul 2025409 PMAQI
14th Jul 20253810 PMAQI
14th Jul 20253711 PMAQI
15th Jul 20253712 AMAQI
15th Jul 2025381 AMAQI
15th Jul 2025382 AMAQI
15th Jul 2025353 AMAQI
15th Jul 2025324 AMAQI
15th Jul 2025325 AMAQI
23°C16/31°C
15th Jul 2025356 AMAQI
15th Jul 2025387 AMAQI
15th Jul 2025408 AMAQI
15th Jul 2025429 AMAQI
15th Jul 20254410 AMAQI
15th Jul 20254711 AMAQI
15th Jul 20254712 PMAQI
15th Jul 2025471 PMAQI
15th Jul 2025472 PMAQI
15th Jul 2025483 PMAQI
15th Jul 2025454 PMAQI
15th Jul 2025425 PMAQI
15th Jul 2025446 PMAQI
15th Jul 2025417 PMAQI
15th Jul 2025418 PMAQI
15th Jul 2025409 PMAQI
15th Jul 20254110 PMAQI
15th Jul 20254011 PMAQI
16th Jul 20253912 AMAQI
16th Jul 2025391 AMAQI
16th Jul 2025392 AMAQI
16th Jul 2025393 AMAQI
16th Jul 2025384 AMAQI
16th Jul 2025395 AMAQI
22°C16/29°C
16th Jul 2025416 AMAQI
16th Jul 2025427 AMAQI
16th Jul 2025438 AMAQI
16th Jul 2025459 AMAQI
16th Jul 20254710 AMAQI
16th Jul 20254611 AMAQI
16th Jul 20254612 PMAQI
16th Jul 2025451 PMAQI
16th Jul 2025462 PMAQI
16th Jul 2025473 PMAQI
16th Jul 2025454 PMAQI
16th Jul 2025455 PMAQI
16th Jul 2025456 PMAQI
16th Jul 2025447 PMAQI
16th Jul 2025448 PMAQI
16th Jul 2025419 PMAQI
16th Jul 20254110 PMAQI
16th Jul 20254011 PMAQI
17th Jul 20254012 AMAQI
17th Jul 2025411 AMAQI
17th Jul 2025412 AMAQI
17th Jul 2025413 AMAQI
17th Jul 2025384 AMAQI
17th Jul 2025365 AMAQI
22°C16/29°C
17th Jul 2025366 AMAQI
17th Jul 2025367 AMAQI
17th Jul 2025398 AMAQI
17th Jul 2025409 AMAQI
17th Jul 20254010 AMAQI
17th Jul 20254011 AMAQI
17th Jul 20254012 PMAQI
17th Jul 2025421 PMAQI
17th Jul 2025412 PMAQI
17th Jul 2025433 PMAQI
17th Jul 2025454 PMAQI
17th Jul 2025435 PMAQI
17th Jul 2025426 PMAQI
17th Jul 2025417 PMAQI
17th Jul 2025418 PMAQI
17th Jul 2025429 PMAQI
17th Jul 20254110 PMAQI
17th Jul 20254011 PMAQI
18th Jul 20254012 AMAQI
18th Jul 2025381 AMAQI
18th Jul 2025332 AMAQI
18th Jul 2025323 AMAQI
18th Jul 2025314 AMAQI
18th Jul 2025335 AMAQI
23°C17/30°C
18th Jul 2025356 AMAQI
18th Jul 2025357 AMAQI
18th Jul 2025368 AMAQI
18th Jul 2025359 AMAQI
18th Jul 20253710 AMAQI
18th Jul 20254111 AMAQI
18th Jul 20253912 PMAQI
18th Jul 2025401 PMAQI
18th Jul 2025402 PMAQI
18th Jul 2025423 PMAQI
18th Jul 2025414 PMAQI
18th Jul 2025415 PMAQI
18th Jul 2025426 PMAQI
18th Jul 2025397 PMAQI
18th Jul 2025388 PMAQI
18th Jul 2025419 PMAQI
18th Jul 20254010 PMAQI
18th Jul 20254011 PMAQI
19th Jul 20254212 AMAQI
19th Jul 2025401 AMAQI
19th Jul 2025312 AMAQI
19th Jul 2025303 AMAQI
19th Jul 2025294 AMAQI
19th Jul 2025305 AMAQI
23°C18/29°C
19th Jul 2025316 AMAQI
19th Jul 2025327 AMAQI
19th Jul 2025328 AMAQI
19th Jul 2025329 AMAQI
19th Jul 20253410 AMAQI
19th Jul 20253911 AMAQI
19th Jul 20254112 PMAQI
19th Jul 2025401 PMAQI
19th Jul 2025412 PMAQI
19th Jul 2025413 PMAQI
19th Jul 2025424 PMAQI
19th Jul 2025405 PMAQI
19th Jul 2025416 PMAQI
19th Jul 2025397 PMAQI
19th Jul 2025398 PMAQI
19th Jul 2025429 PMAQI
19th Jul 20254010 PMAQI
19th Jul 20253911 PMAQI
20th Jul 20253912 AMAQI
20th Jul 2025381 AMAQI
20th Jul 2025362 AMAQI
20th Jul 2025363 AMAQI
20th Jul 2025354 AMAQI
20th Jul 2025355 AMAQI
23°C17/30°C
20th Jul 2025386 AMAQI
20th Jul 2025417 AMAQI
20th Jul 2025408 AMAQI
20th Jul 2025429 AMAQI
20th Jul 20254410 AMAQI
20th Jul 20254311 AMAQI
20th Jul 20254412 PMAQI
20th Jul 2025441 PMAQI
20th Jul 2025442 PMAQI
20th Jul 2025433 PMAQI
20th Jul 2025434 PMAQI
20th Jul 2025435 PMAQI
20th Jul 2025426 PMAQI
20th Jul 2025427 PMAQI
20th Jul 2025428 PMAQI
20th Jul 2025409 PMAQI
20th Jul 20254010 PMAQI
20th Jul 20254011 PMAQI
21st Jul 20253912 AMAQI
21st Jul 2025381 AMAQI
21st Jul 2025392 AMAQI
21st Jul 2025383 AMAQI
21st Jul 2025384 AMAQI
21st Jul 2025375 AMAQI
22°C17/29°C
21st Jul 2025396 AMAQI
21st Jul 2025417 AMAQI
21st Jul 2025408 AMAQI
21st Jul 2025399 AMAQI
21st Jul 20253810 AMAQI
21st Jul 20254311 AMAQI
21st Jul 20254012 PMAQI
21st Jul 2025401 PMAQI
21st Jul 2025402 PMAQI
21st Jul 2025403 PMAQI
21st Jul 2025404 PMAQI
21st Jul 2025405 PMAQI
21st Jul 2025406 PMAQI
21st Jul 2025427 PMAQI
21st Jul 2025408 PMAQI
21st Jul 2025399 PMAQI
21st Jul 20253910 PMAQI
21st Jul 20253811 PMAQI
22nd Jul 20253812 AMAQI
22nd Jul 2025371 AMAQI
22nd Jul 2025342 AMAQI
22nd Jul 2025323 AMAQI
22nd Jul 2025274 AMAQI
22nd Jul 2025295 AMAQI
20°C16/25°C
22nd Jul 2025306 AMAQI
22nd Jul 2025357 AMAQI
22nd Jul 2025328 AMAQI
22nd Jul 2025329 AMAQI
22nd Jul 20253410 AMAQI
22nd Jul 20253311 AMAQI
22nd Jul 20253412 PMAQI
22nd Jul 2025341 PMAQI
22nd Jul 2025352 PMAQI
22nd Jul 2025343 PMAQI
22nd Jul 2025354 PMAQI
22nd Jul 2025355 PMAQI
22nd Jul 2025356 PMAQI
22nd Jul 2025337 PMAQI
22nd Jul 2025338 PMAQI
22nd Jul 2025339 PMAQI
22nd Jul 20253310 PMAQI
22nd Jul 20253311 PMAQI
23rd Jul 20253212 AMAQI
23rd Jul 2025321 AMAQI
23rd Jul 2025322 AMAQI
23rd Jul 2025283 AMAQI
23rd Jul 2025264 AMAQI
23rd Jul 2025265 AMAQI
20°C16/27°C
23rd Jul 2025266 AMAQI
23rd Jul 2025277 AMAQI
23rd Jul 2025308 AMAQI
23rd Jul 2025309 AMAQI
23rd Jul 20253010 AMAQI
23rd Jul 20253111 AMAQI
23rd Jul 20253312 PMAQI
23rd Jul 2025321 PMAQI
23rd Jul 2025322 PMAQI
23rd Jul 2025323 PMAQI
23rd Jul 2025344 PMAQI
23rd Jul 2025355 PMAQI
23rd Jul 2025356 PMAQI
23rd Jul 2025337 PMAQI
23rd Jul 2025318 PMAQI
23rd Jul 2025329 PMAQI
23rd Jul 20253010 PMAQI
23rd Jul 20253011 PMAQI
24th Jul 20252812 AMAQI
24th Jul 2025281 AMAQI
24th Jul 2025282 AMAQI
24th Jul 2025313 AMAQI
24th Jul 2025304 AMAQI
24th Jul 2025285 AMAQI
21°C16/27°C
24th Jul 2025286 AMAQI
24th Jul 2025307 AMAQI
24th Jul 2025318 AMAQI
24th Jul 2025309 AMAQI
24th Jul 20253110 AMAQI
24th Jul 20253411 AMAQI
24th Jul 20253712 PMAQI
24th Jul 2025371 PMAQI
24th Jul 2025352 PMAQI
24th Jul 2025343 PMAQI
24th Jul 2025324 PMAQI
24th Jul 2025315 PMAQI
24th Jul 2025326 PMAQI
24th Jul 2025327 PMAQI
24th Jul 2025328 PMAQI
24th Jul 2025319 PMAQI
24th Jul 20253110 PMAQI
24th Jul 20253011 PMAQI
25th Jul 20252912 AMAQI
25th Jul 2025291 AMAQI
25th Jul 2025272 AMAQI
25th Jul 2025263 AMAQI
25th Jul 2025254 AMAQI
25th Jul 2025255 AMAQI
22°C17/30°C
25th Jul 2025276 AMAQI
25th Jul 2025287 AMAQI
25th Jul 2025288 AMAQI
25th Jul 2025289 AMAQI
25th Jul 20252710 AMAQI
25th Jul 20252911 AMAQI
25th Jul 20253012 PMAQI
25th Jul 2025321 PMAQI
25th Jul 2025332 PMAQI
25th Jul 2025323 PMAQI
25th Jul 2025314 PMAQI
25th Jul 2025325 PMAQI
25th Jul 2025306 PMAQI
25th Jul 2025307 PMAQI
25th Jul 2025298 PMAQI
25th Jul 2025339 PMAQI
25th Jul 20253410 PMAQI
25th Jul 20253311 PMAQI
26th Jul 20253412 AMAQI
26th Jul 2025331 AMAQI
26th Jul 2025322 AMAQI
26th Jul 2025323 AMAQI
26th Jul 2025314 AMAQI
26th Jul 2025305 AMAQI
20°C15/28°C
26th Jul 2025326 AMAQI
26th Jul 2025327 AMAQI
26th Jul 2025338 AMAQI
26th Jul 2025359 AMAQI
26th Jul 20253410 AMAQI
26th Jul 20253711 AMAQI
26th Jul 20253612 PMAQI
26th Jul 2025361 PMAQI
26th Jul 2025372 PMAQI
26th Jul 2025373 PMAQI
26th Jul 2025364 PMAQI
26th Jul 2025355 PMAQI
26th Jul 2025346 PMAQI
26th Jul 2025357 PMAQI
26th Jul 2025348 PMAQI
26th Jul 2025349 PMAQI
26th Jul 20253410 PMAQI
26th Jul 20253511 PMAQI
27th Jul 20253412 AMAQI
27th Jul 2025351 AMAQI
27th Jul 2025362 AMAQI
27th Jul 2025343 AMAQI
27th Jul 2025354 AMAQI
27th Jul 2025345 AMAQI
19°C14/25°C
27th Jul 2025356 AMAQI
27th Jul 2025357 AMAQI
27th Jul 2025368 AMAQI
27th Jul 2025369 AMAQI
27th Jul 20253510 AMAQI
27th Jul 20253611 AMAQI
27th Jul 20253812 PMAQI
27th Jul 2025391 PMAQI
27th Jul 2025402 PMAQI
27th Jul 2025373 PMAQI
27th Jul 2025384 PMAQI
27th Jul 2025375 PMAQI
27th Jul 2025376 PMAQI
27th Jul 2025377 PMAQI
27th Jul 2025378 PMAQI
27th Jul 2025379 PMAQI
27th Jul 20253610 PMAQI
27th Jul 20253711 PMAQI
28th Jul 20253612 AMAQI
28th Jul 2025371 AMAQI
28th Jul 2025382 AMAQI
28th Jul 2025343 AMAQI
28th Jul 2025334 AMAQI
28th Jul 2025315 AMAQI
21°C15/29°C
28th Jul 2025366 AMAQI
28th Jul 2025377 AMAQI
28th Jul 2025378 AMAQI
28th Jul 2025389 AMAQI
28th Jul 20254110 AMAQI
28th Jul 20254211 AMAQI
28th Jul 20254512 PMAQI
28th Jul 2025461 PMAQI
28th Jul 2025452 PMAQI
28th Jul 2025433 PMAQI
28th Jul 2025444 PMAQI
28th Jul 2025445 PMAQI
28th Jul 2025446 PMAQI
28th Jul 2025427 PMAQI
28th Jul 2025428 PMAQI
28th Jul 2025439 PMAQI
28th Jul 20254210 PMAQI
28th Jul 20254211 PMAQI
29th Jul 20254312 AMAQI
29th Jul 2025431 AMAQI
29th Jul 2025442 AMAQI
29th Jul 2025433 AMAQI
29th Jul 2025454 AMAQI
29th Jul 2025465 AMAQI
22°C16/30°C
29th Jul 2025456 AMAQI
29th Jul 2025437 AMAQI
29th Jul 2025458 AMAQI
29th Jul 2025469 AMAQI
29th Jul 20254810 AMAQI
29th Jul 20254911 AMAQI
29th Jul 20255012 PMAQI
29th Jul 2025511 PMAQI
29th Jul 2025502 PMAQI
29th Jul 2025493 PMAQI
29th Jul 2025494 PMAQI
29th Jul 2025495 PMAQI
29th Jul 2025496 PMAQI
29th Jul 2025487 PMAQI
29th Jul 2025498 PMAQI
29th Jul 2025489 PMAQI
29th Jul 20254710 PMAQI
29th Jul 20254711 PMAQI
30th Jul 20254812 AMAQI
30th Jul 2025481 AMAQI
30th Jul 2025482 AMAQI
30th Jul 2025503 AMAQI
30th Jul 2025524 AMAQI
30th Jul 2025525 AMAQI
24°C17/32°C
30th Jul 2025516 AMAQI
30th Jul 2025507 AMAQI
30th Jul 2025508 AMAQI
30th Jul 2025509 AMAQI
30th Jul 20255210 AMAQI
30th Jul 20255311 AMAQI
30th Jul 20255412 PMAQI
30th Jul 2025561 PMAQI
30th Jul 2025552 PMAQI
30th Jul 2025553 PMAQI
30th Jul 2025554 PMAQI
30th Jul 2025555 PMAQI
30th Jul 2025556 PMAQI
30th Jul 2025557 PMAQI
30th Jul 2025558 PMAQI
30th Jul 2025539 PMAQI
30th Jul 20255210 PMAQI
30th Jul 20255211 PMAQI
31st Jul 20255212 AMAQI
31st Jul 2025511 AMAQI
31st Jul 2025502 AMAQI
31st Jul 2025493 AMAQI
31st Jul 2025504 AMAQI
31st Jul 2025485 AMAQI
25°C18/33°C
31st Jul 2025496 AMAQI
31st Jul 2025547 AMAQI
31st Jul 2025538 AMAQI
31st Jul 2025529 AMAQI
31st Jul 20255410 AMAQI
31st Jul 20255611 AMAQI
31st Jul 20255712 PMAQI
31st Jul 2025591 PMAQI
31st Jul 2025582 PMAQI
31st Jul 2025593 PMAQI
31st Jul 2025584 PMAQI
31st Jul 2025565 PMAQI
31st Jul 2025566 PMAQI
31st Jul 2025547 PMAQI
31st Jul 2025548 PMAQI
31st Jul 2025519 PMAQI
31st Jul 20255210 PMAQI
31st Jul 20255111 PMAQI
1st Aug 20255112 AMAQI
1st Aug 2025531 AMAQI
1st Aug 2025522 AMAQI
1st Aug 2025503 AMAQI
1st Aug 2025514 AMAQI
1st Aug 2025515 AMAQI
25°C19/33°C
1st Aug 2025506 AMAQI
1st Aug 2025487 AMAQI
1st Aug 2025478 AMAQI
1st Aug 2025479 AMAQI
1st Aug 20255010 AMAQI
1st Aug 20255411 AMAQI
1st Aug 20255612 PMAQI
1st Aug 2025571 PMAQI
1st Aug 2025592 PMAQI
1st Aug 2025583 PMAQI
1st Aug 2025584 PMAQI
1st Aug 2025565 PMAQI
1st Aug 2025576 PMAQI
1st Aug 2025527 PMAQI
1st Aug 2025538 PMAQI
1st Aug 2025529 PMAQI
1st Aug 20255210 PMAQI
1st Aug 20255011 PMAQI
2nd Aug 20254412 AMAQI
2nd Aug 2025411 AMAQI
2nd Aug 2025432 AMAQI
2nd Aug 2025453 AMAQI
2nd Aug 2025434 AMAQI
2nd Aug 2025445 AMAQI
24°C17/32°C
2nd Aug 2025466 AMAQI
2nd Aug 2025477 AMAQI
2nd Aug 2025468 AMAQI
2nd Aug 2025479 AMAQI
2nd Aug 20255010 AMAQI
2nd Aug 20255111 AMAQI
2nd Aug 20255212 PMAQI
2nd Aug 2025561 PMAQI
2nd Aug 2025592 PMAQI
2nd Aug 2025543 PMAQI
2nd Aug 2025484 PMAQI
2nd Aug 2025435 PMAQI
2nd Aug 2025466 PMAQI
2nd Aug 2025497 PMAQI
2nd Aug 2025488 PMAQI
2nd Aug 2025499 PMAQI
2nd Aug 20254910 PMAQI
2nd Aug 20254811 PMAQI
3rd Aug 20254812 AMAQI
3rd Aug 2025511 AMAQI
3rd Aug 2025522 AMAQI
3rd Aug 2025543 AMAQI
3rd Aug 2025544 AMAQI
3rd Aug 2025545 AMAQI
24°C18/32°C
3rd Aug 2025536 AMAQI
3rd Aug 2025537 AMAQI
3rd Aug 2025538 AMAQI
3rd Aug 2025549 AMAQI
3rd Aug 20255310 AMAQI
3rd Aug 20255411 AMAQI
3rd Aug 20255312 PMAQI
3rd Aug 2025561 PMAQI
3rd Aug 2025562 PMAQI
3rd Aug 2025583 PMAQI
3rd Aug 2025564 PMAQI
3rd Aug 2025535 PMAQI
3rd Aug 2025526 PMAQI
3rd Aug 2025557 PMAQI
3rd Aug 2025558 PMAQI
3rd Aug 2025569 PMAQI
3rd Aug 20255510 PMAQI
3rd Aug 20255511 PMAQI
4th Aug 20255412 AMAQI
4th Aug 2025551 AMAQI
4th Aug 2025552 AMAQI
4th Aug 2025543 AMAQI
4th Aug 2025544 AMAQI
4th Aug 2025565 AMAQI
25°C19/32°C
4th Aug 2025566 AMAQI
4th Aug 2025567 AMAQI
4th Aug 2025578 AMAQI
4th Aug 2025579 AMAQI
4th Aug 20255810 AMAQI
4th Aug 20255811 AMAQI
4th Aug 20255912 PMAQI
4th Aug 2025581 PMAQI
4th Aug 2025582 PMAQI
4th Aug 2025583 PMAQI
4th Aug 2025564 PMAQI
4th Aug 2025575 PMAQI
4th Aug 2025616 PMAQI
4th Aug 2025557 PMAQI
4th Aug 2025588 PMAQI
4th Aug 2025609 PMAQI
4th Aug 20255910 PMAQI
4th Aug 20256011 PMAQI
5th Aug 20256212 AMAQI
5th Aug 2025631 AMAQI
5th Aug 2025622 AMAQI
5th Aug 2025623 AMAQI
5th Aug 2025604 AMAQI
5th Aug 2025615 AMAQI
25°C19/32°C
5th Aug 2025616 AMAQI
5th Aug 2025617 AMAQI
5th Aug 2025608 AMAQI
5th Aug 2025619 AMAQI
5th Aug 20256310 AMAQI
5th Aug 20256211 AMAQI
5th Aug 20256212 PMAQI
5th Aug 2025641 PMAQI
5th Aug 2025652 PMAQI
5th Aug 2025653 PMAQI
5th Aug 2025624 PMAQI
5th Aug 2025625 PMAQI
5th Aug 2025626 PMAQI
5th Aug 2025627 PMAQI
5th Aug 2025588 PMAQI
5th Aug 2025579 PMAQI
5th Aug 20255610 PMAQI
5th Aug 20255411 PMAQI
6th Aug 20255312 AMAQI
6th Aug 2025521 AMAQI
6th Aug 2025522 AMAQI
6th Aug 2025513 AMAQI
6th Aug 2025494 AMAQI
6th Aug 2025505 AMAQI
26°C19/33°C
6th Aug 2025516 AMAQI
6th Aug 2025537 AMAQI
6th Aug 2025558 AMAQI
6th Aug 2025579 AMAQI
6th Aug 20255610 AMAQI
6th Aug 20255811 AMAQI
6th Aug 20256212 PMAQI
6th Aug 2025621 PMAQI
6th Aug 2025602 PMAQI
6th Aug 2025603 PMAQI
6th Aug 2025614 PMAQI
6th Aug 2025615 PMAQI
6th Aug 2025616 PMAQI
6th Aug 2025567 PMAQI
6th Aug 2025568 PMAQI
6th Aug 2025559 PMAQI
6th Aug 20255510 PMAQI
6th Aug 20255011 PMAQI
7th Aug 20255012 AMAQI
7th Aug 2025481 AMAQI
7th Aug 2025452 AMAQI
7th Aug 2025443 AMAQI
7th Aug 2025464 AMAQI
7th Aug 2025455 AMAQI
27°C21/36°C
7th Aug 2025456 AMAQI
7th Aug 2025467 AMAQI
7th Aug 2025468 AMAQI
7th Aug 2025469 AMAQI
7th Aug 20254710 AMAQI
7th Aug 20254911 AMAQI
7th Aug 20255012 PMAQI
7th Aug 2025511 PMAQI
7th Aug 2025502 PMAQI
7th Aug 2025513 PMAQI
7th Aug 2025504 PMAQI
7th Aug 2025485 PMAQI
7th Aug 2025486 PMAQI
7th Aug 2025497 PMAQI
7th Aug 2025478 PMAQI
7th Aug 2025459 PMAQI
7th Aug 20254510 PMAQI
7th Aug 20254411 PMAQI
8th Aug 20254512 AMAQI
8th Aug 2025461 AMAQI
8th Aug 2025462 AMAQI
8th Aug 2025443 AMAQI
8th Aug 2025434 AMAQI
8th Aug 2025445 AMAQI
29°C23/38°C
8th Aug 2025456 AMAQI
8th Aug 2025457 AMAQI
8th Aug 2025478 AMAQI
8th Aug 2025489 AMAQI
8th Aug 20254610 AMAQI
8th Aug 20254911 AMAQI
8th Aug 20254812 PMAQI
8th Aug 2025501 PMAQI
8th Aug 2025512 PMAQI
8th Aug 2025503 PMAQI
8th Aug 2025504 PMAQI
8th Aug 2025485 PMAQI
8th Aug 2025476 PMAQI
8th Aug 2025467 PMAQI
8th Aug 2025458 PMAQI
8th Aug 2025429 PMAQI
8th Aug 20254310 PMAQI
8th Aug 20254311 PMAQI
9th Aug 20254212 AMAQI
9th Aug 2025431 AMAQI
9th Aug 2025432 AMAQI
9th Aug 2025433 AMAQI
9th Aug 2025414 AMAQI
9th Aug 2025405 AMAQI
30°C24/37°C
9th Aug 2025416 AMAQI
9th Aug 2025447 AMAQI
9th Aug 2025458 AMAQI
9th Aug 2025449 AMAQI
9th Aug 20254410 AMAQI
9th Aug 20254611 AMAQI
9th Aug 20254712 PMAQI
9th Aug 2025471 PMAQI
9th Aug 2025492 PMAQI
9th Aug 2025483 PMAQI
9th Aug 2025484 PMAQI
9th Aug 2025475 PMAQI
9th Aug 2025476 PMAQI
9th Aug 2025447 PMAQI
9th Aug 2025458 PMAQI
9th Aug 2025449 PMAQI
9th Aug 20254310 PMAQI
9th Aug 20254311 PMAQI
10th Aug 20254312 AMAQI
10th Aug 2025421 AMAQI
10th Aug 2025402 AMAQI
10th Aug 2025393 AMAQI
10th Aug 2025374 AMAQI
10th Aug 2025385 AMAQI
27°C21/36°C
10th Aug 2025386 AMAQI
10th Aug 2025387 AMAQI
10th Aug 2025398 AMAQI
10th Aug 2025399 AMAQI
10th Aug 20253910 AMAQI
10th Aug 20254211 AMAQI
10th Aug 20254212 PMAQI
10th Aug 2025411 PMAQI
10th Aug 2025412 PMAQI
10th Aug 2025423 PMAQI
10th Aug 2025424 PMAQI
10th Aug 2025425 PMAQI
10th Aug 2025426 PMAQI
10th Aug 2025417 PMAQI
10th Aug 2025418 PMAQI
10th Aug 2025419 PMAQI
10th Aug 20254110 PMAQI
10th Aug 20254011 PMAQI
11th Aug 20254112 AMAQI
11th Aug 2025451 AMAQI
11th Aug 2025482 AMAQI
11th Aug 2025463 AMAQI
11th Aug 2025464 AMAQI
11th Aug 2025455 AMAQI
26°C21/34°C
11th Aug 2025466 AMAQI
6 AM11th Aug 2025467 AMAQI
11th Aug 2025458 AMAQI
11th Aug 2025449 AMAQI
11th Aug 20254610 AMAQI
11th Aug 20254611 AMAQI
12 PM
7 PM
12 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
6 AM - 7 PM
45AQI
14 hours / Day
420 hours / Month
Avg. Lowest Time
6 AM - 7 PM
45AQI
14 hours / Day
420 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 7 PM (Avg. 45), while the lowest AQI was between 6 AM to 7 PM (Avg. 45).
Night time
Avg. Highest Time
8 PM - 11 PM
44AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
12 AM - 5 AM
42AQI
6 hours / Day
180 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 PM to 11 PM (Avg. 44), while the lowest AQI was between 12 AM to 5 AM (Avg. 42).
2025 Days Vs Air Quality
Pasadena, California, United States
2025
67%
93
33%
45
Total number of days with different AQI categories in last 223 days in 2025 (142 days remaining)
Good
93 DaysModerate
45 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 67%
Health Risk Level:
Moderate
In 2025, 67% of 223 days were within WHO’s safe air quality limits, and 33% exceeded them. The risk of health issues is Moderate, particularly for individuals with respiratory or heart conditions.
Annual Air Quality Insights
Pasadena, 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 March 2025
34AQI
34AQI
2nd March 2025
27AQI
27AQI
3rd March 2025
27AQI
27AQI
4th March 2025
32AQI
32AQI
5th March 2025
30AQI
30AQI
6th March 2025
18AQI
18AQI
1st April 2025
21AQI
21AQI
2nd April 2025
22AQI
22AQI
3rd April 2025
28AQI
28AQI
4th April 2025
31AQI
31AQI
5th April 2025
24AQI
24AQI
6th April 2025
27AQI
27AQI
7th April 2025
34AQI
34AQI
8th April 2025
48AQI
48AQI
9th April 2025
49AQI
49AQI
10th April 2025
51AQI
51AQI
11th April 2025
52AQI
52AQI
12th April 2025
55AQI
55AQI
13th April 2025
55AQI
55AQI
14th April 2025
53AQI
53AQI
15th April 2025
50AQI
50AQI
16th April 2025
40AQI
40AQI
17th April 2025
30AQI
30AQI
18th April 2025
28AQI
28AQI
19th April 2025
35AQI
35AQI
20th April 2025
41AQI
41AQI
21st April 2025
48AQI
48AQI
22nd April 2025
53AQI
53AQI
23rd April 2025
46AQI
46AQI
24th April 2025
40AQI
40AQI
25th April 2025
40AQI
40AQI
26th April 2025
21AQI
21AQI
27th April 2025
21AQI
21AQI
28th April 2025
27AQI
27AQI
29th April 2025
36AQI
36AQI
30th April 2025
50AQI
50AQI
1st May 2025
48AQI
48AQI
2nd May 2025
42AQI
42AQI
3rd May 2025
42AQI
42AQI
4th May 2025
29AQI
29AQI
5th May 2025
39AQI
39AQI
6th May 2025
36AQI
36AQI
7th May 2025
36AQI
36AQI
8th May 2025
45AQI
45AQI
9th May 2025
46AQI
46AQI
10th May 2025
41AQI
41AQI
11th May 2025
40AQI
40AQI
12th May 2025
47AQI
47AQI
13th May 2025
24AQI
24AQI
14th May 2025
34AQI
34AQI
15th May 2025
46AQI
46AQI
16th May 2025
51AQI
51AQI
17th May 2025
45AQI
45AQI
18th May 2025
35AQI
35AQI
19th May 2025
46AQI
46AQI
20th May 2025
51AQI
51AQI
21st May 2025
52AQI
52AQI
22nd May 2025
58AQI
58AQI
23rd May 2025
58AQI
58AQI
24th May 2025
54AQI
54AQI
25th May 2025
49AQI
49AQI
26th May 2025
49AQI
49AQI
27th May 2025
47AQI
47AQI
28th May 2025
46AQI
46AQI
29th May 2025
44AQI
44AQI
30th May 2025
48AQI
48AQI
31st May 2025
52AQI
52AQI
1st June 2025
47AQI
47AQI
2nd June 2025
37AQI
37AQI
3rd June 2025
34AQI
34AQI
4th June 2025
36AQI
36AQI
5th June 2025
39AQI
39AQI
6th June 2025
38AQI
38AQI
7th June 2025
42AQI
42AQI
8th June 2025
46AQI
46AQI
9th June 2025
47AQI
47AQI
10th June 2025
52AQI
52AQI
11th June 2025
51AQI
51AQI
12th June 2025
52AQI
52AQI
13th June 2025
52AQI
52AQI
14th June 2025
54AQI
54AQI
15th June 2025
56AQI
56AQI
16th June 2025
59AQI
59AQI
17th June 2025
60AQI
60AQI
18th June 2025
59AQI
59AQI
19th June 2025
55AQI
55AQI
20th June 2025
55AQI
55AQI
21st June 2025
53AQI
53AQI
22nd June 2025
53AQI
53AQI
23rd June 2025
54AQI
54AQI
24th June 2025
51AQI
51AQI
25th June 2025
47AQI
47AQI
26th June 2025
51AQI
51AQI
27th June 2025
53AQI
53AQI
28th June 2025
50AQI
50AQI
29th June 2025
50AQI
50AQI
30th June 2025
43AQI
43AQI
1st July 2025
42AQI
42AQI
2nd July 2025
45AQI
45AQI
3rd July 2025
43AQI
43AQI
4th July 2025
47AQI
47AQI
5th July 2025
92AQI
92AQI
6th July 2025
60AQI
60AQI
7th July 2025
54AQI
54AQI
8th July 2025
48AQI
48AQI
9th July 2025
44AQI
44AQI
10th July 2025
47AQI
47AQI
11th July 2025
52AQI
52AQI
12th July 2025
54AQI
54AQI
13th July 2025
50AQI
50AQI
14th July 2025
43AQI
43AQI
15th July 2025
39AQI
39AQI
16th July 2025
32AQI
32AQI
17th July 2025
27AQI
27AQI
18th July 2025
30AQI
30AQI
19th July 2025
38AQI
38AQI
20th July 2025
42AQI
42AQI
21st July 2025
40AQI
40AQI
22nd July 2025
32AQI
32AQI
23rd July 2025
30AQI
30AQI
24th July 2025
29AQI
29AQI
25th July 2025
25AQI
25AQI
26th July 2025
27AQI
27AQI
27th July 2025
29AQI
29AQI
28th July 2025
30AQI
30AQI
29th July 2025
36AQI
36AQI
30th July 2025
47AQI
47AQI
31st July 2025
52AQI
52AQI
1st August 2025
52AQI
52AQI
2nd August 2025
50AQI
50AQI
3rd August 2025
56AQI
56AQI
4th August 2025
61AQI
61AQI
5th August 2025
68AQI
68AQI
6th August 2025
69AQI
69AQI
7th August 2025
64AQI
64AQI
8th August 2025
63AQI
63AQI
9th August 2025
60AQI
60AQI
10th August 2025
55AQI
55AQI
28AQI
39AQI
45AQI
49AQI
42AQI
60AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202544AQI
6
24
6
24
7
13
17
25
6
1
9
93
45
Highest AQI recorded in
August60AQI
Lowest AQI recorded in
March28AQI
Most & Least Polluted Years Over the Last 1 Years
Most Polluted Year Recorded
2025(Avg.)
44AQILeast Polluted Year Recorded
2025(Avg.)
44AQIPasadena's annual 2025 AQI (44) shows an average percentage change of NaN% (improved AQI) compared to previous years: .
