Simi Valley, 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+
November Air Quality Analysis
Simi Valley, California, United States
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
8th Nov 2021
102AQILowest AQI recorded on
17th Nov 2023
18AQISame Day Analysis (4th November ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 62 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 3rd Nov - 4th Nov 2025
Simi Valley, California, United States
AQI
Day
Night
.
7 AM3rd Nov 2025
6 PM
6 AM4th Nov 2025
Day time
Avg. Highest Time
12PM3rd Nov
59AQI
Avg. Lowest Time
10AM3rd Nov
44AQI
Night time
Avg. Highest Time
11PM3rd Nov
69AQI
Avg. Lowest Time
4AM4th Nov
56AQI
In the last 24 hours,
Simi Valley's AQI reached its highest point of 69 at 11 PM during the Night, while the lowest point, 44, was recorded at 10 AM during the Day between 3rd Nov and 4th Nov 2025.
Day & Night AQI Trend : Oct - Nov 2025
Simi Valley, California, United States
OctNov
05th - 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 - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th
Day
Night
5th Oct 2025637 AMAQI
5th Oct 2025398 AMAQI
5th Oct 2025399 AMAQI
5th Oct 20255010 AMAQI
5th Oct 20255411 AMAQI
5th Oct 20255012 PMAQI
5th Oct 2025501 PMAQI
5th Oct 2025502 PMAQI
5th Oct 2025413 PMAQI
5th Oct 2025394 PMAQI
5th Oct 2025415 PMAQI
5th Oct 2025406 PMAQI
5th Oct 2025577 PMAQI
5th Oct 2025448 PMAQI
5th Oct 2025549 PMAQI
5th Oct 20255310 PMAQI
5th Oct 20255011 PMAQI
6th Oct 20255112 AMAQI
6th Oct 2025531 AMAQI
6th Oct 2025462 AMAQI
6th Oct 2025523 AMAQI
6th Oct 2025424 AMAQI
6th Oct 2025615 AMAQI
6th Oct 2025376 AMAQI
--°C/°C
6th Oct 2025407 AMAQI
6th Oct 2025418 AMAQI
6th Oct 2025389 AMAQI
6th Oct 20254510 AMAQI
7th Oct 2025374 AMAQI
7th Oct 2025135 AMAQI
7th Oct 2025496 AMAQI
18°C12/28°C
7th Oct 2025417 AMAQI
7th Oct 2025328 AMAQI
7th Oct 2025359 AMAQI
7th Oct 20254610 AMAQI
7th Oct 20255411 AMAQI
7th Oct 20255512 PMAQI
7th Oct 2025611 PMAQI
7th Oct 2025402 PMAQI
7th Oct 2025403 PMAQI
7th Oct 2025544 PMAQI
7th Oct 2025595 PMAQI
7th Oct 2025506 PMAQI
7th Oct 2025597 PMAQI
7th Oct 2025558 PMAQI
7th Oct 2025509 PMAQI
7th Oct 20255210 PMAQI
7th Oct 20254111 PMAQI
8th Oct 20254312 AMAQI
8th Oct 2025501 AMAQI
8th Oct 2025382 AMAQI
8th Oct 2025493 AMAQI
8th Oct 2025514 AMAQI
8th Oct 2025565 AMAQI
8th Oct 2025506 AMAQI
20°C15/29°C
8th Oct 2025517 AMAQI
8th Oct 2025408 AMAQI
8th Oct 2025439 AMAQI
8th Oct 20255010 AMAQI
8th Oct 20257011 AMAQI
8th Oct 20255412 PMAQI
8th Oct 2025481 PMAQI
8th Oct 2025462 PMAQI
8th Oct 2025393 PMAQI
8th Oct 2025594 PMAQI
8th Oct 2025515 PMAQI
8th Oct 2025516 PMAQI
8th Oct 2025557 PMAQI
8th Oct 2025428 PMAQI
8th Oct 2025489 PMAQI
8th Oct 20253710 PMAQI
8th Oct 20255411 PMAQI
9th Oct 20255212 AMAQI
9th Oct 2025381 AMAQI
9th Oct 2025562 AMAQI
9th Oct 2025523 AMAQI
9th Oct 2025504 AMAQI
9th Oct 2025475 AMAQI
9th Oct 2025166 AMAQI
18°C13/26°C
9th Oct 2025427 AMAQI
9th Oct 2025548 AMAQI
9th Oct 2025549 AMAQI
9th Oct 20254310 AMAQI
9th Oct 20256211 AMAQI
9th Oct 20256312 PMAQI
9th Oct 2025561 PMAQI
9th Oct 2025562 PMAQI
9th Oct 2025563 PMAQI
9th Oct 2025394 PMAQI
9th Oct 2025525 PMAQI
9th Oct 2025536 PMAQI
9th Oct 2025547 PMAQI
9th Oct 2025558 PMAQI
9th Oct 2025499 PMAQI
9th Oct 20253810 PMAQI
9th Oct 20254511 PMAQI
10th Oct 20254912 AMAQI
10th Oct 2025541 AMAQI
10th Oct 2025532 AMAQI
10th Oct 2025373 AMAQI
10th Oct 2025384 AMAQI
10th Oct 2025405 AMAQI
10th Oct 2025376 AMAQI
19°C11/30°C
10th Oct 2025507 AMAQI
10th Oct 2025458 AMAQI
10th Oct 2025519 AMAQI
10th Oct 20253810 AMAQI
10th Oct 20254511 AMAQI
10th Oct 20253912 PMAQI
10th Oct 2025511 PMAQI
10th Oct 2025382 PMAQI
10th Oct 2025403 PMAQI
10th Oct 2025424 PMAQI
10th Oct 2025495 PMAQI
10th Oct 2025416 PMAQI
10th Oct 2025397 PMAQI
10th Oct 2025398 PMAQI
10th Oct 2025339 PMAQI
10th Oct 20255510 PMAQI
10th Oct 20254611 PMAQI
11th Oct 20254712 AMAQI
11th Oct 2025491 AMAQI
11th Oct 2025542 AMAQI
11th Oct 2025563 AMAQI
11th Oct 2025664 AMAQI
11th Oct 2025535 AMAQI
11th Oct 2025406 AMAQI
21°C12/34°C
11th Oct 2025407 AMAQI
11th Oct 2025518 AMAQI
11th Oct 2025419 AMAQI
11th Oct 20254010 AMAQI
11th Oct 20254011 AMAQI
11th Oct 20255512 PMAQI
11th Oct 2025281 PMAQI
11th Oct 2025182 PMAQI
11th Oct 2025163 PMAQI
11th Oct 2025214 PMAQI
11th Oct 2025505 PMAQI
11th Oct 2025316 PMAQI
11th Oct 2025377 PMAQI
11th Oct 2025378 PMAQI
11th Oct 2025529 PMAQI
11th Oct 20255110 PMAQI
11th Oct 20253911 PMAQI
12th Oct 20254012 AMAQI
12th Oct 2025541 AMAQI
12th Oct 2025562 AMAQI
12th Oct 2025553 AMAQI
12th Oct 2025504 AMAQI
12th Oct 2025585 AMAQI
12th Oct 2025516 AMAQI
22°C13/31°C
12th Oct 2025417 AMAQI
12th Oct 2025418 AMAQI
12th Oct 2025419 AMAQI
12th Oct 20253810 AMAQI
12th Oct 20254111 AMAQI
12th Oct 20254412 PMAQI
12th Oct 2025331 PMAQI
12th Oct 2025272 PMAQI
12th Oct 2025283 PMAQI
12th Oct 2025364 PMAQI
12th Oct 2025345 PMAQI
12th Oct 2025446 PMAQI
12th Oct 2025307 PMAQI
12th Oct 2025288 PMAQI
12th Oct 2025519 PMAQI
12th Oct 20254110 PMAQI
12th Oct 20254011 PMAQI
13th Oct 20254712 AMAQI
13th Oct 2025511 AMAQI
13th Oct 2025552 AMAQI
13th Oct 2025543 AMAQI
13th Oct 2025464 AMAQI
13th Oct 2025535 AMAQI
13th Oct 2025566 AMAQI
22°C15/33°C
13th Oct 2025547 AMAQI
13th Oct 2025508 AMAQI
13th Oct 2025409 AMAQI
13th Oct 20254010 AMAQI
13th Oct 20255011 AMAQI
13th Oct 20255612 PMAQI
13th Oct 2025561 PMAQI
13th Oct 2025542 PMAQI
13th Oct 2025543 PMAQI
13th Oct 2025594 PMAQI
13th Oct 2025585 PMAQI
13th Oct 2025586 PMAQI
13th Oct 2025597 PMAQI
13th Oct 2025548 PMAQI
13th Oct 2025559 PMAQI
13th Oct 20255610 PMAQI
13th Oct 20256011 PMAQI
14th Oct 20255612 AMAQI
14th Oct 2025421 AMAQI
14th Oct 2025402 AMAQI
14th Oct 2025403 AMAQI
14th Oct 2025454 AMAQI
14th Oct 2025545 AMAQI
14th Oct 2025506 AMAQI
17°C14/22°C
14th Oct 2025507 AMAQI
14th Oct 2025268 AMAQI
14th Oct 2025259 AMAQI
14th Oct 20253110 AMAQI
14th Oct 20253611 AMAQI
14th Oct 20253612 PMAQI
14th Oct 2025381 PMAQI
14th Oct 2025472 PMAQI
14th Oct 2025313 PMAQI
14th Oct 2025364 PMAQI
14th Oct 2025315 PMAQI
14th Oct 2025346 PMAQI
14th Oct 2025217 PMAQI
14th Oct 2025248 PMAQI
14th Oct 2025349 PMAQI
14th Oct 20251410 PMAQI
14th Oct 2025911 PMAQI
15th Oct 20251712 AMAQI
15th Oct 2025251 AMAQI
15th Oct 2025252 AMAQI
15th Oct 2025233 AMAQI
15th Oct 2025364 AMAQI
15th Oct 2025415 AMAQI
15th Oct 2025396 AMAQI
14°C12/17°C
15th Oct 2025287 AMAQI
15th Oct 2025368 AMAQI
15th Oct 2025209 AMAQI
15th Oct 20252110 AMAQI
15th Oct 20253411 AMAQI
15th Oct 20253912 PMAQI
15th Oct 2025181 PMAQI
15th Oct 2025392 PMAQI
15th Oct 2025393 PMAQI
15th Oct 2025364 PMAQI
15th Oct 2025195 PMAQI
15th Oct 2025216 PMAQI
15th Oct 2025157 PMAQI
15th Oct 2025378 PMAQI
15th Oct 2025399 PMAQI
15th Oct 20253910 PMAQI
15th Oct 20255511 PMAQI
16th Oct 20255012 AMAQI
16th Oct 2025581 AMAQI
16th Oct 2025552 AMAQI
16th Oct 2025363 AMAQI
16th Oct 2025354 AMAQI
16th Oct 2025325 AMAQI
16th Oct 2025326 AMAQI
14°C10/20°C
16th Oct 2025467 AMAQI
16th Oct 2025408 AMAQI
16th Oct 2025409 AMAQI
16th Oct 20255110 AMAQI
16th Oct 20254711 AMAQI
16th Oct 20252712 PMAQI
16th Oct 2025241 PMAQI
16th Oct 2025272 PMAQI
16th Oct 2025233 PMAQI
16th Oct 2025304 PMAQI
16th Oct 2025365 PMAQI
16th Oct 2025366 PMAQI
16th Oct 2025397 PMAQI
16th Oct 2025408 PMAQI
16th Oct 2025399 PMAQI
16th Oct 20255110 PMAQI
16th Oct 20255211 PMAQI
17th Oct 20255012 AMAQI
17th Oct 2025551 AMAQI
17th Oct 2025562 AMAQI
17th Oct 2025453 AMAQI
17th Oct 2025384 AMAQI
17th Oct 2025365 AMAQI
17th Oct 2025386 AMAQI
19°C12/30°C
17th Oct 2025377 AMAQI
17th Oct 2025398 AMAQI
17th Oct 2025459 AMAQI
17th Oct 20254710 AMAQI
17th Oct 20254911 AMAQI
17th Oct 20254912 PMAQI
17th Oct 2025341 PMAQI
17th Oct 2025242 PMAQI
17th Oct 2025313 PMAQI
17th Oct 2025224 PMAQI
17th Oct 2025205 PMAQI
17th Oct 2025216 PMAQI
17th Oct 2025347 PMAQI
17th Oct 2025528 PMAQI
17th Oct 2025539 PMAQI
17th Oct 20254710 PMAQI
17th Oct 20255011 PMAQI
18th Oct 20255412 AMAQI
18th Oct 2025551 AMAQI
18th Oct 2025632 AMAQI
18th Oct 2025553 AMAQI
18th Oct 2025454 AMAQI
18th Oct 2025385 AMAQI
18th Oct 2025376 AMAQI
22°C16/32°C
18th Oct 2025467 AMAQI
18th Oct 2025508 AMAQI
18th Oct 2025509 AMAQI
18th Oct 20255810 AMAQI
18th Oct 20255411 AMAQI
18th Oct 20255412 PMAQI
18th Oct 2025541 PMAQI
18th Oct 2025242 PMAQI
18th Oct 2025193 PMAQI
18th Oct 2025304 PMAQI
18th Oct 2025255 PMAQI
18th Oct 2025276 PMAQI
18th Oct 2025227 PMAQI
18th Oct 2025218 PMAQI
18th Oct 2025189 PMAQI
18th Oct 20254610 PMAQI
18th Oct 20254911 PMAQI
19th Oct 20255012 AMAQI
19th Oct 2025501 AMAQI
19th Oct 2025552 AMAQI
19th Oct 2025523 AMAQI
19th Oct 2025714 AMAQI
19th Oct 2025625 AMAQI
19th Oct 2025606 AMAQI
23°C16/33°C
19th Oct 2025387 AMAQI
19th Oct 2025438 AMAQI
19th Oct 2025509 AMAQI
19th Oct 20255610 AMAQI
19th Oct 20255111 AMAQI
19th Oct 20254512 PMAQI
19th Oct 2025261 PMAQI
19th Oct 2025152 PMAQI
19th Oct 2025183 PMAQI
19th Oct 2025534 PMAQI
19th Oct 2025445 PMAQI
19th Oct 2025186 PMAQI
19th Oct 2025147 PMAQI
19th Oct 2025138 PMAQI
19th Oct 2025179 PMAQI
19th Oct 20253810 PMAQI
19th Oct 20255811 PMAQI
20th Oct 20255612 AMAQI
20th Oct 2025591 AMAQI
20th Oct 2025622 AMAQI
20th Oct 2025573 AMAQI
20th Oct 2025534 AMAQI
20th Oct 2025515 AMAQI
20th Oct 2025496 AMAQI
22°C16/31°C
20th Oct 2025497 AMAQI
20th Oct 2025498 AMAQI
20th Oct 2025559 AMAQI
20th Oct 20255510 AMAQI
20th Oct 20256011 AMAQI
20th Oct 20256112 PMAQI
20th Oct 2025331 PMAQI
20th Oct 2025152 PMAQI
20th Oct 2025303 PMAQI
20th Oct 2025214 PMAQI
20th Oct 2025395 PMAQI
20th Oct 2025576 PMAQI
20th Oct 2025477 PMAQI
20th Oct 2025368 PMAQI
20th Oct 2025609 PMAQI
20th Oct 20256210 PMAQI
20th Oct 20255711 PMAQI
21st Oct 20255712 AMAQI
21st Oct 2025621 AMAQI
21st Oct 2025642 AMAQI
21st Oct 2025593 AMAQI
21st Oct 2025584 AMAQI
21st Oct 2025605 AMAQI
21st Oct 2025576 AMAQI
21°C15/32°C
21st Oct 2025517 AMAQI
21st Oct 2025488 AMAQI
21st Oct 2025519 AMAQI
21st Oct 20255510 AMAQI
21st Oct 20255711 AMAQI
21st Oct 20255112 PMAQI
21st Oct 2025361 PMAQI
21st Oct 2025292 PMAQI
21st Oct 2025233 PMAQI
21st Oct 2025314 PMAQI
21st Oct 2025445 PMAQI
21st Oct 2025506 PMAQI
21st Oct 2025567 PMAQI
21st Oct 2025508 PMAQI
21st Oct 2025489 PMAQI
21st Oct 20255410 PMAQI
21st Oct 20255511 PMAQI
22nd Oct 20255712 AMAQI
22nd Oct 2025551 AMAQI
22nd Oct 2025562 AMAQI
22nd Oct 2025533 AMAQI
22nd Oct 2025494 AMAQI
22nd Oct 2025505 AMAQI
22nd Oct 2025486 AMAQI
17°C11/23°C
22nd Oct 2025407 AMAQI
22nd Oct 2025318 AMAQI
22nd Oct 2025239 AMAQI
22nd Oct 20253210 AMAQI
22nd Oct 20254711 AMAQI
22nd Oct 20254212 PMAQI
22nd Oct 2025471 PMAQI
22nd Oct 2025542 PMAQI
22nd Oct 2025483 PMAQI
22nd Oct 2025364 PMAQI
22nd Oct 2025285 PMAQI
22nd Oct 2025266 PMAQI
22nd Oct 2025227 PMAQI
22nd Oct 2025288 PMAQI
22nd Oct 2025339 PMAQI
22nd Oct 20253310 PMAQI
22nd Oct 20253711 PMAQI
23rd Oct 20253812 AMAQI
23rd Oct 2025331 AMAQI
23rd Oct 2025332 AMAQI
23rd Oct 2025283 AMAQI
23rd Oct 2025204 AMAQI
23rd Oct 2025175 AMAQI
23rd Oct 2025236 AMAQI
18°C13/25°C
23rd Oct 2025367 AMAQI
23rd Oct 2025368 AMAQI
23rd Oct 2025389 AMAQI
23rd Oct 20254210 AMAQI
23rd Oct 20254611 AMAQI
23rd Oct 20255412 PMAQI
23rd Oct 2025501 PMAQI
23rd Oct 2025332 PMAQI
23rd Oct 2025223 PMAQI
23rd Oct 2025284 PMAQI
23rd Oct 2025335 PMAQI
23rd Oct 2025426 PMAQI
23rd Oct 2025527 PMAQI
23rd Oct 2025478 PMAQI
23rd Oct 2025489 PMAQI
23rd Oct 20255510 PMAQI
23rd Oct 20255311 PMAQI
24th Oct 20255412 AMAQI
24th Oct 2025541 AMAQI
24th Oct 2025502 AMAQI
24th Oct 2025503 AMAQI
24th Oct 2025554 AMAQI
24th Oct 2025475 AMAQI
24th Oct 2025366 AMAQI
18°C13/27°C
24th Oct 2025307 AMAQI
24th Oct 2025308 AMAQI
24th Oct 2025309 AMAQI
24th Oct 20253910 AMAQI
24th Oct 20254711 AMAQI
24th Oct 20254712 PMAQI
24th Oct 2025501 PMAQI
24th Oct 2025442 PMAQI
24th Oct 2025393 PMAQI
24th Oct 2025444 PMAQI
24th Oct 2025535 PMAQI
24th Oct 2025606 PMAQI
24th Oct 2025607 PMAQI
24th Oct 2025608 PMAQI
24th Oct 2025589 PMAQI
24th Oct 20255910 PMAQI
24th Oct 20256411 PMAQI
25th Oct 20255812 AMAQI
25th Oct 2025591 AMAQI
25th Oct 2025592 AMAQI
25th Oct 2025603 AMAQI
25th Oct 2025684 AMAQI
25th Oct 2025755 AMAQI
25th Oct 2025676 AMAQI
19°C12/28°C
25th Oct 2025577 AMAQI
25th Oct 2025558 AMAQI
25th Oct 2025569 AMAQI
25th Oct 20255310 AMAQI
25th Oct 20254711 AMAQI
25th Oct 20255012 PMAQI
25th Oct 2025561 PMAQI
25th Oct 2025592 PMAQI
25th Oct 2025613 PMAQI
25th Oct 2025574 PMAQI
25th Oct 2025575 PMAQI
25th Oct 2025586 PMAQI
25th Oct 2025537 PMAQI
25th Oct 2025528 PMAQI
25th Oct 2025539 PMAQI
25th Oct 20254610 PMAQI
25th Oct 20254611 PMAQI
26th Oct 20255012 AMAQI
26th Oct 2025521 AMAQI
26th Oct 2025752 AMAQI
26th Oct 2025823 AMAQI
26th Oct 2025644 AMAQI
26th Oct 2025595 AMAQI
26th Oct 2025606 AMAQI
16°C12/24°C
26th Oct 2025617 AMAQI
26th Oct 2025608 AMAQI
26th Oct 2025619 AMAQI
26th Oct 20256110 AMAQI
26th Oct 20256111 AMAQI
26th Oct 20256612 PMAQI
26th Oct 2025661 PMAQI
26th Oct 2025612 PMAQI
26th Oct 2025643 PMAQI
26th Oct 2025684 PMAQI
26th Oct 2025615 PMAQI
26th Oct 2025556 PMAQI
26th Oct 2025597 PMAQI
26th Oct 2025578 PMAQI
26th Oct 2025529 PMAQI
26th Oct 20255010 PMAQI
26th Oct 20254611 PMAQI
27th Oct 20255212 AMAQI
27th Oct 2025551 AMAQI
27th Oct 2025562 AMAQI
27th Oct 2025593 AMAQI
27th Oct 2025604 AMAQI
27th Oct 2025575 AMAQI
27th Oct 2025506 AMAQI
16°C11/23°C
27th Oct 2025527 AMAQI
27th Oct 2025598 AMAQI
27th Oct 2025569 AMAQI
27th Oct 20255510 AMAQI
27th Oct 20256011 AMAQI
27th Oct 20256712 PMAQI
27th Oct 2025641 PMAQI
27th Oct 2025602 PMAQI
27th Oct 2025583 PMAQI
27th Oct 2025574 PMAQI
27th Oct 2025575 PMAQI
27th Oct 2025586 PMAQI
27th Oct 2025587 PMAQI
27th Oct 2025578 PMAQI
27th Oct 2025569 PMAQI
27th Oct 20256210 PMAQI
27th Oct 20256311 PMAQI
28th Oct 20256012 AMAQI
28th Oct 2025611 AMAQI
28th Oct 2025582 AMAQI
28th Oct 2025563 AMAQI
28th Oct 2025544 AMAQI
28th Oct 2025485 AMAQI
28th Oct 2025426 AMAQI
18°C12/27°C
28th Oct 2025397 AMAQI
28th Oct 2025428 AMAQI
28th Oct 2025509 AMAQI
28th Oct 20254310 AMAQI
28th Oct 20253011 AMAQI
28th Oct 20253312 PMAQI
28th Oct 2025361 PMAQI
28th Oct 2025302 PMAQI
28th Oct 2025273 PMAQI
28th Oct 2025244 PMAQI
28th Oct 2025245 PMAQI
28th Oct 2025226 PMAQI
28th Oct 2025187 PMAQI
28th Oct 2025288 PMAQI
28th Oct 2025369 PMAQI
28th Oct 20253610 PMAQI
28th Oct 20254211 PMAQI
29th Oct 20252812 AMAQI
29th Oct 2025121 AMAQI
29th Oct 2025122 AMAQI
29th Oct 2025113 AMAQI
29th Oct 2025114 AMAQI
29th Oct 2025165 AMAQI
29th Oct 2025226 AMAQI
27°C19/36°C
29th Oct 2025217 AMAQI
29th Oct 2025248 AMAQI
29th Oct 2025309 AMAQI
29th Oct 20254010 AMAQI
29th Oct 20254111 AMAQI
29th Oct 20253512 PMAQI
29th Oct 2025431 PMAQI
29th Oct 2025342 PMAQI
29th Oct 2025283 PMAQI
29th Oct 2025254 PMAQI
29th Oct 2025285 PMAQI
29th Oct 2025366 PMAQI
29th Oct 2025347 PMAQI
29th Oct 2025418 PMAQI
29th Oct 2025549 PMAQI
29th Oct 20255210 PMAQI
29th Oct 20254411 PMAQI
30th Oct 20254312 AMAQI
30th Oct 2025421 AMAQI
30th Oct 2025422 AMAQI
30th Oct 2025423 AMAQI
30th Oct 2025364 AMAQI
30th Oct 2025335 AMAQI
30th Oct 2025336 AMAQI
27°C19/37°C
30th Oct 2025427 AMAQI
30th Oct 2025698 AMAQI
30th Oct 2025949 AMAQI
30th Oct 20259810 AMAQI
30th Oct 20258811 AMAQI
30th Oct 20257812 PMAQI
30th Oct 2025681 PMAQI
30th Oct 2025612 PMAQI
30th Oct 2025613 PMAQI
30th Oct 2025534 PMAQI
30th Oct 2025405 PMAQI
30th Oct 2025326 PMAQI
30th Oct 2025257 PMAQI
30th Oct 2025278 PMAQI
30th Oct 2025309 PMAQI
30th Oct 20254410 PMAQI
30th Oct 20255911 PMAQI
31st Oct 20256312 AMAQI
31st Oct 2025651 AMAQI
31st Oct 2025572 AMAQI
31st Oct 2025483 AMAQI
31st Oct 2025604 AMAQI
31st Oct 2025525 AMAQI
31st Oct 2025236 AMAQI
22°C14/34°C
31st Oct 2025297 AMAQI
31st Oct 2025508 AMAQI
31st Oct 2025579 AMAQI
31st Oct 20256610 AMAQI
31st Oct 20256911 AMAQI
31st Oct 20255712 PMAQI
31st Oct 2025471 PMAQI
31st Oct 2025422 PMAQI
31st Oct 2025343 PMAQI
31st Oct 2025384 PMAQI
31st Oct 2025555 PMAQI
31st Oct 2025636 PMAQI
31st Oct 2025647 PMAQI
31st Oct 2025628 PMAQI
31st Oct 2025689 PMAQI
31st Oct 20257010 PMAQI
31st Oct 20257111 PMAQI
1st Nov 20257712 AMAQI
1st Nov 2025801 AMAQI
1st Nov 2025692 AMAQI
1st Nov 2025653 AMAQI
1st Nov 2025654 AMAQI
1st Nov 2025615 AMAQI
1st Nov 2025566 AMAQI
21°C14/31°C
1st Nov 2025547 AMAQI
1st Nov 2025538 AMAQI
1st Nov 2025559 AMAQI
1st Nov 20256410 AMAQI
1st Nov 20257211 AMAQI
1st Nov 20256512 PMAQI
1st Nov 2025581 PMAQI
1st Nov 2025562 PMAQI
1st Nov 2025553 PMAQI
1st Nov 2025564 PMAQI
1st Nov 2025545 PMAQI
1st Nov 2025546 PMAQI
1st Nov 2025587 PMAQI
1st Nov 2025638 PMAQI
1st Nov 2025629 PMAQI
1st Nov 20256110 PMAQI
1st Nov 20256611 PMAQI
2nd Nov 20257012 AMAQI
2nd Nov 2025671 AMAQI
2nd Nov 2025682 AMAQI
2nd Nov 2025693 AMAQI
2nd Nov 2025644 AMAQI
2nd Nov 2025575 AMAQI
2nd Nov 2025506 AMAQI
17°C11/24°C
2nd Nov 2025507 AMAQI
2nd Nov 2025448 AMAQI
2nd Nov 2025369 AMAQI
2nd Nov 20253610 AMAQI
2nd Nov 20254211 AMAQI
2nd Nov 20254612 PMAQI
2nd Nov 2025471 PMAQI
2nd Nov 2025482 PMAQI
2nd Nov 2025553 PMAQI
2nd Nov 2025564 PMAQI
2nd Nov 2025605 PMAQI
2nd Nov 2025606 PMAQI
2nd Nov 2025607 PMAQI
2nd Nov 2025628 PMAQI
2nd Nov 2025669 PMAQI
2nd Nov 20256910 PMAQI
2nd Nov 20256511 PMAQI
3rd Nov 20256512 AMAQI
3rd Nov 2025611 AMAQI
3rd Nov 2025552 AMAQI
3rd Nov 2025563 AMAQI
3rd Nov 2025594 AMAQI
3rd Nov 2025535 AMAQI
3rd Nov 2025506 AMAQI
17°C11/26°C
3rd Nov 2025507 AMAQI
3rd Nov 2025448 AMAQI
3rd Nov 2025449 AMAQI
3rd Nov 20254410 AMAQI
3rd Nov 20254811 AMAQI
3rd Nov 20255912 PMAQI
3rd Nov 2025591 PMAQI
3rd Nov 2025572 PMAQI
3rd Nov 2025553 PMAQI
3rd Nov 2025554 PMAQI
3rd Nov 2025565 PMAQI
3rd Nov 2025606 PMAQI
3rd Nov 2025647 PMAQI
3rd Nov 2025678 PMAQI
3rd Nov 2025679 PMAQI
3rd Nov 20256610 PMAQI
3rd Nov 20256911 PMAQI
4th Nov 20256812 AMAQI
4th Nov 2025681 AMAQI
4th Nov 2025632 AMAQI
4th Nov 2025573 AMAQI
4th Nov 2025564 AMAQI
4th Nov 2025575 AMAQI
4th Nov 2025566 AMAQI
17°C12/28°C
4th Nov 2025567 AMAQI
7 AM4th Nov 2025568 AMAQI
4th Nov 2025569 AMAQI
4th Nov 20255910 AMAQI
4th Nov 20256211 AMAQI
4th Nov 20256012 PMAQI
12 PM4th Nov 2025611 PMAQI
4th Nov 2025672 PMAQI
4th Nov 2025643 PMAQI
4th Nov 2025584 PMAQI
4th Nov 2025615 PMAQI
4th Nov 2025686 PMAQI
6 PM4th Nov 2025687 PMAQI
12 AM
6 AM
16°C10/25°C
Day time
Avg. Highest Time
11 AM - 12 PM
52AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
3 PM
40AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 AM to 12 PM (Avg. 52), while the lowest AQI was between 3 PM to 3 PM (Avg. 40).
Night time
Avg. Highest Time
12 AM - 2 AM
52AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
6 AM - 8 PM
44AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 2 AM (Avg. 52), while the lowest AQI was between 6 AM to 8 PM (Avg. 44).
2025 Days Vs Air Quality
Simi Valley, California, United States
2025
84%
258
16%
50
Total number of days with different AQI categories in last 309 days in 2025 (56 days remaining)
Good
258 DaysModerate
50 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 84%
Health Risk Level:
Low
In 2025, 84% of 309 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Simi Valley, 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
46AQI
46AQI
2nd January 2025
35AQI
35AQI
3rd January 2025
47AQI
47AQI
4th January 2025
38AQI
38AQI
5th January 2025
29AQI
29AQI
6th January 2025
29AQI
29AQI
7th January 2025
37AQI
37AQI
8th January 2025
56AQI
56AQI
9th January 2025
35AQI
35AQI
10th January 2025
40AQI
40AQI
11th January 2025
40AQI
40AQI
12th January 2025
30AQI
30AQI
13th January 2025
32AQI
32AQI
14th January 2025
30AQI
30AQI
15th January 2025
30AQI
30AQI
16th January 2025
29AQI
29AQI
17th January 2025
38AQI
38AQI
18th January 2025
49AQI
49AQI
19th January 2025
57AQI
57AQI
20th January 2025
50AQI
50AQI
21st January 2025
32AQI
32AQI
22nd January 2025
36AQI
36AQI
23rd January 2025
36AQI
36AQI
24th January 2025
32AQI
32AQI
25th January 2025
46AQI
46AQI
26th January 2025
27AQI
27AQI
27th January 2025
27AQI
27AQI
28th January 2025
34AQI
34AQI
29th January 2025
47AQI
47AQI
30th January 2025
49AQI
49AQI
31st January 2025
50AQI
50AQI
1st February 2025
43AQI
43AQI
2nd February 2025
44AQI
44AQI
3rd February 2025
44AQI
44AQI
4th February 2025
28AQI
28AQI
5th February 2025
22AQI
22AQI
6th February 2025
23AQI
23AQI
7th February 2025
26AQI
26AQI
8th February 2025
28AQI
28AQI
9th February 2025
30AQI
30AQI
10th February 2025
34AQI
34AQI
11th February 2025
32AQI
32AQI
12th February 2025
30AQI
30AQI
13th February 2025
25AQI
25AQI
14th February 2025
30AQI
30AQI
15th February 2025
33AQI
33AQI
16th February 2025
31AQI
31AQI
17th February 2025
35AQI
35AQI
18th February 2025
34AQI
34AQI
19th February 2025
33AQI
33AQI
20th February 2025
35AQI
35AQI
21st February 2025
30AQI
30AQI
22nd February 2025
30AQI
30AQI
23rd February 2025
33AQI
33AQI
24th February 2025
36AQI
36AQI
25th February 2025
35AQI
35AQI
26th February 2025
34AQI
34AQI
27th February 2025
29AQI
29AQI
28th February 2025
30AQI
30AQI
1st March 2025
36AQI
36AQI
2nd March 2025
38AQI
38AQI
3rd March 2025
26AQI
26AQI
4th March 2025
31AQI
31AQI
5th March 2025
35AQI
35AQI
6th March 2025
30AQI
30AQI
7th March 2025
27AQI
27AQI
8th March 2025
31AQI
31AQI
9th March 2025
34AQI
34AQI
10th March 2025
32AQI
32AQI
11th March 2025
29AQI
29AQI
12th March 2025
27AQI
27AQI
13th March 2025
22AQI
22AQI
14th March 2025
19AQI
19AQI
15th March 2025
22AQI
22AQI
16th March 2025
33AQI
33AQI
17th March 2025
31AQI
31AQI
18th March 2025
19AQI
19AQI
19th March 2025
19AQI
19AQI
20th March 2025
20AQI
20AQI
21st March 2025
22AQI
22AQI
22nd March 2025
28AQI
28AQI
23rd March 2025
40AQI
40AQI
24th March 2025
33AQI
33AQI
25th March 2025
37AQI
37AQI
26th March 2025
29AQI
29AQI
27th March 2025
23AQI
23AQI
28th March 2025
31AQI
31AQI
29th March 2025
33AQI
33AQI
30th March 2025
31AQI
31AQI
31st March 2025
18AQI
18AQI
1st April 2025
25AQI
25AQI
2nd April 2025
22AQI
22AQI
3rd April 2025
30AQI
30AQI
4th April 2025
27AQI
27AQI
5th April 2025
18AQI
18AQI
6th April 2025
24AQI
24AQI
7th April 2025
31AQI
31AQI
8th April 2025
41AQI
41AQI
9th April 2025
41AQI
41AQI
10th April 2025
48AQI
48AQI
11th April 2025
46AQI
46AQI
12th April 2025
53AQI
53AQI
13th April 2025
57AQI
57AQI
14th April 2025
53AQI
53AQI
15th April 2025
50AQI
50AQI
16th April 2025
36AQI
36AQI
17th April 2025
30AQI
30AQI
18th April 2025
31AQI
31AQI
19th April 2025
33AQI
33AQI
20th April 2025
32AQI
32AQI
21st April 2025
44AQI
44AQI
22nd April 2025
55AQI
55AQI
23rd April 2025
48AQI
48AQI
24th April 2025
42AQI
42AQI
25th April 2025
42AQI
42AQI
26th April 2025
19AQI
19AQI
27th April 2025
19AQI
19AQI
28th April 2025
26AQI
26AQI
29th April 2025
31AQI
31AQI
30th April 2025
54AQI
54AQI
1st May 2025
50AQI
50AQI
2nd May 2025
44AQI
44AQI
3rd May 2025
42AQI
42AQI
4th May 2025
34AQI
34AQI
5th May 2025
45AQI
45AQI
6th May 2025
43AQI
43AQI
7th May 2025
36AQI
36AQI
8th May 2025
43AQI
43AQI
9th May 2025
41AQI
41AQI
10th May 2025
39AQI
39AQI
11th May 2025
35AQI
35AQI
12th May 2025
46AQI
46AQI
13th May 2025
24AQI
24AQI
14th May 2025
27AQI
27AQI
15th May 2025
46AQI
46AQI
16th May 2025
53AQI
53AQI
17th May 2025
47AQI
47AQI
18th May 2025
32AQI
32AQI
19th May 2025
38AQI
38AQI
20th May 2025
41AQI
41AQI
21st May 2025
39AQI
39AQI
22nd May 2025
53AQI
53AQI
23rd May 2025
54AQI
54AQI
24th May 2025
53AQI
53AQI
25th May 2025
48AQI
48AQI
26th May 2025
44AQI
44AQI
27th May 2025
45AQI
45AQI
28th May 2025
43AQI
43AQI
29th May 2025
44AQI
44AQI
30th May 2025
45AQI
45AQI
31st May 2025
47AQI
47AQI
1st June 2025
42AQI
42AQI
2nd June 2025
36AQI
36AQI
3rd June 2025
31AQI
31AQI
4th June 2025
29AQI
29AQI
5th June 2025
40AQI
40AQI
6th June 2025
34AQI
34AQI
7th June 2025
38AQI
38AQI
8th June 2025
33AQI
33AQI
9th June 2025
44AQI
44AQI
10th June 2025
45AQI
45AQI
11th June 2025
37AQI
37AQI
12th June 2025
51AQI
51AQI
13th June 2025
52AQI
52AQI
14th June 2025
50AQI
50AQI
15th June 2025
51AQI
51AQI
16th June 2025
55AQI
55AQI
17th June 2025
57AQI
57AQI
18th June 2025
56AQI
56AQI
19th June 2025
55AQI
55AQI
20th June 2025
55AQI
55AQI
21st June 2025
58AQI
58AQI
22nd June 2025
58AQI
58AQI
23rd June 2025
53AQI
53AQI
24th June 2025
49AQI
49AQI
25th June 2025
44AQI
44AQI
26th June 2025
46AQI
46AQI
27th June 2025
51AQI
51AQI
28th June 2025
46AQI
46AQI
29th June 2025
37AQI
37AQI
30th June 2025
32AQI
32AQI
1st July 2025
34AQI
34AQI
2nd July 2025
40AQI
40AQI
3rd July 2025
40AQI
40AQI
4th July 2025
47AQI
47AQI
5th July 2025
68AQI
68AQI
6th July 2025
52AQI
52AQI
7th July 2025
44AQI
44AQI
8th July 2025
39AQI
39AQI
9th July 2025
35AQI
35AQI
10th July 2025
37AQI
37AQI
11th July 2025
48AQI
48AQI
12th July 2025
54AQI
54AQI
13th July 2025
45AQI
45AQI
14th July 2025
34AQI
34AQI
15th July 2025
37AQI
37AQI
16th July 2025
36AQI
36AQI
17th July 2025
25AQI
25AQI
18th July 2025
26AQI
26AQI
19th July 2025
34AQI
34AQI
20th July 2025
43AQI
43AQI
21st July 2025
32AQI
32AQI
22nd July 2025
25AQI
25AQI
23rd July 2025
22AQI
22AQI
24th July 2025
18AQI
18AQI
25th July 2025
18AQI
18AQI
26th July 2025
21AQI
21AQI
27th July 2025
22AQI
22AQI
28th July 2025
22AQI
22AQI
29th July 2025
25AQI
25AQI
30th July 2025
27AQI
27AQI
31st July 2025
39AQI
39AQI
1st August 2025
41AQI
41AQI
2nd August 2025
41AQI
41AQI
3rd August 2025
48AQI
48AQI
4th August 2025
58AQI
58AQI
5th August 2025
65AQI
65AQI
6th August 2025
62AQI
62AQI
7th August 2025
57AQI
57AQI
8th August 2025
58AQI
58AQI
9th August 2025
53AQI
53AQI
10th August 2025
53AQI
53AQI
11th August 2025
49AQI
49AQI
12th August 2025
55AQI
55AQI
13th August 2025
55AQI
55AQI
14th August 2025
55AQI
55AQI
15th August 2025
49AQI
49AQI
16th August 2025
44AQI
44AQI
17th August 2025
40AQI
40AQI
18th August 2025
41AQI
41AQI
19th August 2025
34AQI
34AQI
20th August 2025
36AQI
36AQI
21st August 2025
45AQI
45AQI
22nd August 2025
49AQI
49AQI
23rd August 2025
47AQI
47AQI
24th August 2025
52AQI
52AQI
25th August 2025
41AQI
41AQI
26th August 2025
48AQI
48AQI
27th August 2025
44AQI
44AQI
28th August 2025
42AQI
42AQI
29th August 2025
38AQI
38AQI
30th August 2025
44AQI
44AQI
31st August 2025
46AQI
46AQI
1st September 2025
39AQI
39AQI
2nd September 2025
36AQI
36AQI
3rd September 2025
45AQI
45AQI
4th September 2025
36AQI
36AQI
5th September 2025
38AQI
38AQI
6th September 2025
44AQI
44AQI
7th September 2025
33AQI
33AQI
8th September 2025
26AQI
26AQI
9th September 2025
25AQI
25AQI
10th September 2025
23AQI
23AQI
11th September 2025
23AQI
23AQI
12th September 2025
33AQI
33AQI
13th September 2025
44AQI
44AQI
14th September 2025
51AQI
51AQI
15th September 2025
51AQI
51AQI
16th September 2025
48AQI
48AQI
17th September 2025
29AQI
29AQI
18th September 2025
29AQI
29AQI
19th September 2025
34AQI
34AQI
20th September 2025
29AQI
29AQI
21st September 2025
26AQI
26AQI
22nd September 2025
28AQI
28AQI
23rd September 2025
29AQI
29AQI
24th September 2025
34AQI
34AQI
25th September 2025
26AQI
26AQI
26th September 2025
32AQI
32AQI
27th September 2025
18AQI
18AQI
28th September 2025
22AQI
22AQI
29th September 2025
18AQI
18AQI
30th September 2025
28AQI
28AQI
1st October 2025
43AQI
43AQI
2nd October 2025
39AQI
39AQI
3rd October 2025
42AQI
42AQI
4th October 2025
44AQI
44AQI
5th October 2025
45AQI
45AQI
6th October 2025
50AQI
50AQI
7th October 2025
47AQI
47AQI
8th October 2025
49AQI
49AQI
9th October 2025
50AQI
50AQI
10th October 2025
44AQI
44AQI
11th October 2025
44AQI
44AQI
12th October 2025
43AQI
43AQI
13th October 2025
53AQI
53AQI
14th October 2025
35AQI
35AQI
15th October 2025
29AQI
29AQI
16th October 2025
42AQI
42AQI
17th October 2025
43AQI
43AQI
18th October 2025
43AQI
43AQI
19th October 2025
42AQI
42AQI
20th October 2025
52AQI
52AQI
21st October 2025
53AQI
53AQI
22nd October 2025
41AQI
41AQI
23rd October 2025
38AQI
38AQI
24th October 2025
50AQI
50AQI
25th October 2025
56AQI
56AQI
26th October 2025
61AQI
61AQI
27th October 2025
58AQI
58AQI
28th October 2025
41AQI
41AQI
29th October 2025
29AQI
29AQI
30th October 2025
49AQI
49AQI
31st October 2025
57AQI
57AQI
1st November 2025
63AQI
63AQI
2nd November 2025
59AQI
59AQI
3rd November 2025
58AQI
58AQI
4th November 2025
62AQI
62AQI
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
38AQI
32AQI
29AQI
37AQI
43AQI
46AQI
35AQI
48AQI
33AQI
46AQI
61AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202539AQI
29
2
28
31
25
5
27
4
18
12
28
3
20
11
28
2
24
7
4
258
50
Highest AQI recorded in
November61AQI
Lowest AQI recorded in
March29AQI
202438AQI
30
1
29
30
1
25
5
20
11
25
4
28
3
30
1
30
26
5
26
4
26
5
325
40
Highest AQI recorded in
May46AQI
Lowest AQI recorded in
February28AQI
202336AQI
30
28
31
29
1
27
4
30
21
9
1
29
2
24
6
30
1
27
2
31
337
25
1
Highest AQI recorded in
July49AQI
Lowest AQI recorded in
January30AQI
202238AQI
28
2
22
31
24
6
23
8
20
10
20
2
1
1
24
5
26
5
28
2
31
278
41
Highest AQI recorded in
June47AQI
Lowest AQI recorded in
December29AQI
202141AQI
29
1
25
3
30
1
25
5
25
6
25
5
19
12
22
9
21
9
29
2
21
8
1
26
5
297
66
1
Highest AQI recorded in
July47AQI
Lowest AQI recorded in
January32AQI
202041AQI
13
20
18
30
25
6
23
8
9
21
16
14
28
2
30
1
212
52
Highest AQI recorded in
September58AQI
Lowest AQI recorded in
March28AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2021(Avg.)
41AQILeast Polluted Year Recorded
2023(Avg.)
36AQISimi Valley's annual 2025 AQI (39) shows an average percentage change of 0.3% (worsened AQI) compared to previous years: 2020 (41), 2021 (41), 2022 (38), 2023 (36), 2024 (38).
