Folsom, 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
Folsom, California, United States
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
4th Oct 2021
83AQILowest AQI recorded on
25th Oct 2023
17AQISame Day Analysis (29th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 34 of Good air quality, showing improvement over 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 29th Oct - 30th Oct 2025
Folsom, California, United States
AQI
Day
Night
.
7 AM29th Oct 2025
6 PM
6 AM30th Oct 2025
Day time
Avg. Highest Time
2PM29th Oct
54AQI
Avg. Lowest Time
9AM29th Oct
22AQI
Night time
Avg. Highest Time
5AM30th Oct
53AQI
Avg. Lowest Time
10PM29th Oct
29AQI
In the last 24 hours,
Folsom's AQI reached its highest point of 54 at 2 PM during the Day, while the lowest point, 22, was recorded at 9 AM during the Day between 29th Oct and 30th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Folsom, California, United States
SepOct
30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 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
Day
Night
30th Sep 2025277 AMAQI
30th Sep 2025228 AMAQI
30th Sep 2025219 AMAQI
30th Sep 20251910 AMAQI
30th Sep 20252111 AMAQI
30th Sep 20251812 PMAQI
30th Sep 2025181 PMAQI
30th Sep 2025182 PMAQI
30th Sep 2025193 PMAQI
30th Sep 2025174 PMAQI
30th Sep 2025205 PMAQI
30th Sep 2025236 PMAQI
30th Sep 2025227 PMAQI
30th Sep 2025178 PMAQI
30th Sep 2025159 PMAQI
30th Sep 20251610 PMAQI
30th Sep 20251211 PMAQI
1st Oct 20251712 AMAQI
1st Oct 2025171 AMAQI
1st Oct 2025172 AMAQI
1st Oct 2025173 AMAQI
1st Oct 2025154 AMAQI
1st Oct 2025135 AMAQI
1st Oct 2025146 AMAQI
21°C16/27°C
1st Oct 2025167 AMAQI
1st Oct 2025268 AMAQI
1st Oct 2025139 AMAQI
1st Oct 2025910 AMAQI
1st Oct 20251011 AMAQI
1st Oct 20251012 PMAQI
1st Oct 2025171 PMAQI
1st Oct 2025282 PMAQI
1st Oct 2025113 PMAQI
1st Oct 2025224 PMAQI
1st Oct 2025485 PMAQI
1st Oct 2025286 PMAQI
1st Oct 2025137 PMAQI
1st Oct 2025148 PMAQI
1st Oct 2025119 PMAQI
1st Oct 20251510 PMAQI
1st Oct 20251311 PMAQI
2nd Oct 20251612 AMAQI
2nd Oct 2025121 AMAQI
2nd Oct 2025392 AMAQI
2nd Oct 2025463 AMAQI
2nd Oct 2025474 AMAQI
2nd Oct 2025505 AMAQI
2nd Oct 2025376 AMAQI
21°C17/26°C
2nd Oct 202587 AMAQI
2nd Oct 2025298 AMAQI
2nd Oct 2025249 AMAQI
2nd Oct 20254110 AMAQI
2nd Oct 20254811 AMAQI
2nd Oct 20254112 PMAQI
2nd Oct 2025151 PMAQI
2nd Oct 2025152 PMAQI
2nd Oct 2025353 PMAQI
2nd Oct 2025324 PMAQI
2nd Oct 2025305 PMAQI
2nd Oct 2025356 PMAQI
2nd Oct 2025407 PMAQI
2nd Oct 2025468 PMAQI
2nd Oct 2025489 PMAQI
2nd Oct 20255110 PMAQI
2nd Oct 20254511 PMAQI
3rd Oct 20254512 AMAQI
3rd Oct 2025361 AMAQI
3rd Oct 2025162 AMAQI
3rd Oct 2025403 AMAQI
3rd Oct 2025394 AMAQI
3rd Oct 2025405 AMAQI
3rd Oct 2025406 AMAQI
18°C15/20°C
3rd Oct 2025177 AMAQI
3rd Oct 2025128 AMAQI
3rd Oct 2025129 AMAQI
3rd Oct 20251210 AMAQI
3rd Oct 20251311 AMAQI
3rd Oct 20253212 PMAQI
3rd Oct 2025401 PMAQI
3rd Oct 2025322 PMAQI
3rd Oct 2025293 PMAQI
3rd Oct 2025504 PMAQI
3rd Oct 2025405 PMAQI
3rd Oct 2025186 PMAQI
3rd Oct 2025337 PMAQI
3rd Oct 2025158 PMAQI
3rd Oct 2025149 PMAQI
3rd Oct 20252310 PMAQI
3rd Oct 20252111 PMAQI
4th Oct 20252112 AMAQI
4th Oct 2025471 AMAQI
4th Oct 2025542 AMAQI
4th Oct 2025363 AMAQI
4th Oct 2025504 AMAQI
4th Oct 2025415 AMAQI
4th Oct 2025236 AMAQI
17°C15/23°C
4th Oct 2025197 AMAQI
4th Oct 2025238 AMAQI
4th Oct 2025329 AMAQI
4th Oct 20254210 AMAQI
4th Oct 20254311 AMAQI
4th Oct 20254512 PMAQI
4th Oct 2025431 PMAQI
4th Oct 2025522 PMAQI
4th Oct 2025443 PMAQI
4th Oct 2025354 PMAQI
4th Oct 2025385 PMAQI
4th Oct 2025446 PMAQI
4th Oct 2025527 PMAQI
4th Oct 2025478 PMAQI
4th Oct 2025419 PMAQI
4th Oct 20254410 PMAQI
4th Oct 20254811 PMAQI
5th Oct 20254912 AMAQI
5th Oct 2025481 AMAQI
5th Oct 2025512 AMAQI
5th Oct 2025553 AMAQI
5th Oct 2025374 AMAQI
5th Oct 2025475 AMAQI
5th Oct 2025486 AMAQI
18°C12/28°C
5th Oct 2025407 AMAQI
5th Oct 2025408 AMAQI
5th Oct 2025419 AMAQI
5th Oct 20254010 AMAQI
5th Oct 20254211 AMAQI
5th Oct 20254012 PMAQI
5th Oct 2025421 PMAQI
5th Oct 2025482 PMAQI
5th Oct 2025443 PMAQI
5th Oct 2025414 PMAQI
5th Oct 2025345 PMAQI
5th Oct 2025176 PMAQI
5th Oct 2025237 PMAQI
5th Oct 2025198 PMAQI
5th Oct 2025349 PMAQI
5th Oct 20254510 PMAQI
5th Oct 20254511 PMAQI
6th Oct 20254212 AMAQI
6th Oct 2025371 AMAQI
6th Oct 2025402 AMAQI
6th Oct 2025463 AMAQI
6th Oct 2025434 AMAQI
6th Oct 2025495 AMAQI
6th Oct 2025456 AMAQI
20°C13/30°C
6th Oct 2025447 AMAQI
6th Oct 2025498 AMAQI
6th Oct 2025489 AMAQI
6th Oct 20254010 AMAQI
7th Oct 2025384 AMAQI
7th Oct 2025635 AMAQI
7th Oct 2025496 AMAQI
23°C14/33°C
7th Oct 2025467 AMAQI
7th Oct 2025408 AMAQI
7th Oct 2025409 AMAQI
7th Oct 20253810 AMAQI
7th Oct 20255411 AMAQI
7th Oct 20254712 PMAQI
7th Oct 2025421 PMAQI
7th Oct 2025422 PMAQI
7th Oct 2025223 PMAQI
7th Oct 2025424 PMAQI
7th Oct 2025295 PMAQI
7th Oct 2025236 PMAQI
7th Oct 2025167 PMAQI
7th Oct 2025228 PMAQI
7th Oct 2025279 PMAQI
7th Oct 20254210 PMAQI
7th Oct 20255111 PMAQI
8th Oct 20255112 AMAQI
8th Oct 2025351 AMAQI
8th Oct 2025172 AMAQI
8th Oct 2025163 AMAQI
8th Oct 2025164 AMAQI
8th Oct 2025395 AMAQI
8th Oct 2025466 AMAQI
24°C14/35°C
8th Oct 2025407 AMAQI
8th Oct 2025418 AMAQI
8th Oct 2025569 AMAQI
8th Oct 20255510 AMAQI
8th Oct 20256211 AMAQI
8th Oct 20256512 PMAQI
8th Oct 2025611 PMAQI
8th Oct 2025612 PMAQI
8th Oct 2025553 PMAQI
8th Oct 2025464 PMAQI
8th Oct 2025445 PMAQI
8th Oct 2025436 PMAQI
8th Oct 2025427 PMAQI
8th Oct 2025488 PMAQI
8th Oct 2025529 PMAQI
8th Oct 20255410 PMAQI
8th Oct 20254511 PMAQI
9th Oct 20254512 AMAQI
9th Oct 2025481 AMAQI
9th Oct 2025542 AMAQI
9th Oct 2025533 AMAQI
9th Oct 2025514 AMAQI
9th Oct 2025505 AMAQI
9th Oct 2025506 AMAQI
20°C13/29°C
9th Oct 2025457 AMAQI
9th Oct 2025478 AMAQI
9th Oct 2025479 AMAQI
9th Oct 20254810 AMAQI
9th Oct 20254411 AMAQI
9th Oct 20255312 PMAQI
9th Oct 2025491 PMAQI
9th Oct 2025472 PMAQI
9th Oct 2025403 PMAQI
9th Oct 2025364 PMAQI
9th Oct 2025205 PMAQI
9th Oct 2025486 PMAQI
9th Oct 2025527 PMAQI
9th Oct 2025448 PMAQI
9th Oct 2025499 PMAQI
9th Oct 20255210 PMAQI
9th Oct 20254911 PMAQI
10th Oct 20255312 AMAQI
10th Oct 2025541 AMAQI
10th Oct 2025542 AMAQI
10th Oct 2025503 AMAQI
10th Oct 2025534 AMAQI
10th Oct 2025525 AMAQI
10th Oct 2025506 AMAQI
19°C15/27°C
10th Oct 2025497 AMAQI
10th Oct 2025468 AMAQI
10th Oct 2025419 AMAQI
10th Oct 20254210 AMAQI
10th Oct 20253911 AMAQI
10th Oct 20253712 PMAQI
10th Oct 2025131 PMAQI
10th Oct 2025172 PMAQI
10th Oct 2025233 PMAQI
10th Oct 2025414 PMAQI
10th Oct 2025465 PMAQI
10th Oct 2025236 PMAQI
10th Oct 2025157 PMAQI
10th Oct 2025148 PMAQI
10th Oct 2025359 PMAQI
10th Oct 20253110 PMAQI
10th Oct 20253511 PMAQI
11th Oct 20253412 AMAQI
11th Oct 2025241 AMAQI
11th Oct 2025182 AMAQI
11th Oct 2025173 AMAQI
11th Oct 2025144 AMAQI
11th Oct 2025185 AMAQI
11th Oct 2025156 AMAQI
19°C13/27°C
11th Oct 2025127 AMAQI
11th Oct 2025218 AMAQI
11th Oct 2025269 AMAQI
11th Oct 20252010 AMAQI
11th Oct 20251511 AMAQI
11th Oct 20251412 PMAQI
11th Oct 2025131 PMAQI
11th Oct 2025342 PMAQI
11th Oct 2025313 PMAQI
11th Oct 2025154 PMAQI
11th Oct 2025225 PMAQI
11th Oct 2025326 PMAQI
11th Oct 2025297 PMAQI
11th Oct 2025648 PMAQI
11th Oct 2025649 PMAQI
11th Oct 20255710 PMAQI
11th Oct 20254811 PMAQI
12th Oct 20253612 AMAQI
12th Oct 2025241 AMAQI
12th Oct 2025372 AMAQI
12th Oct 2025133 AMAQI
12th Oct 2025164 AMAQI
12th Oct 2025245 AMAQI
12th Oct 2025336 AMAQI
18°C11/25°C
12th Oct 2025147 AMAQI
12th Oct 2025138 AMAQI
12th Oct 2025119 AMAQI
12th Oct 20251210 AMAQI
12th Oct 20251311 AMAQI
12th Oct 20251612 PMAQI
12th Oct 2025151 PMAQI
12th Oct 2025142 PMAQI
12th Oct 2025163 PMAQI
12th Oct 2025174 PMAQI
12th Oct 2025155 PMAQI
12th Oct 2025226 PMAQI
12th Oct 2025177 PMAQI
12th Oct 2025168 PMAQI
12th Oct 2025289 PMAQI
12th Oct 20255410 PMAQI
12th Oct 20254111 PMAQI
13th Oct 20253712 AMAQI
13th Oct 2025341 AMAQI
13th Oct 2025142 AMAQI
13th Oct 2025333 AMAQI
13th Oct 2025414 AMAQI
13th Oct 2025325 AMAQI
13th Oct 2025246 AMAQI
17°C9/26°C
13th Oct 2025497 AMAQI
13th Oct 2025448 AMAQI
13th Oct 2025509 AMAQI
13th Oct 20255210 AMAQI
13th Oct 20255011 AMAQI
13th Oct 20255012 PMAQI
13th Oct 2025521 PMAQI
13th Oct 2025462 PMAQI
13th Oct 2025463 PMAQI
13th Oct 2025414 PMAQI
13th Oct 2025385 PMAQI
13th Oct 2025376 PMAQI
13th Oct 2025407 PMAQI
13th Oct 2025438 PMAQI
13th Oct 2025459 PMAQI
13th Oct 20253510 PMAQI
13th Oct 20251211 PMAQI
14th Oct 20251712 AMAQI
14th Oct 2025221 AMAQI
14th Oct 2025222 AMAQI
14th Oct 202573 AMAQI
14th Oct 2025154 AMAQI
14th Oct 2025255 AMAQI
14th Oct 2025246 AMAQI
15°C12/20°C
14th Oct 2025167 AMAQI
14th Oct 2025238 AMAQI
14th Oct 2025129 AMAQI
14th Oct 20251710 AMAQI
14th Oct 20252311 AMAQI
14th Oct 20252012 PMAQI
14th Oct 2025231 PMAQI
14th Oct 2025112 PMAQI
14th Oct 2025143 PMAQI
14th Oct 2025184 PMAQI
14th Oct 2025205 PMAQI
14th Oct 2025266 PMAQI
14th Oct 2025197 PMAQI
14th Oct 2025248 PMAQI
14th Oct 2025229 PMAQI
14th Oct 20251610 PMAQI
14th Oct 20251611 PMAQI
15th Oct 2025712 AMAQI
15th Oct 2025341 AMAQI
15th Oct 2025362 AMAQI
15th Oct 2025243 AMAQI
15th Oct 2025234 AMAQI
15th Oct 2025255 AMAQI
15th Oct 2025236 AMAQI
13°C11/15°C
15th Oct 2025227 AMAQI
15th Oct 2025248 AMAQI
15th Oct 2025249 AMAQI
15th Oct 20251810 AMAQI
15th Oct 20251811 AMAQI
15th Oct 20252512 PMAQI
15th Oct 2025151 PMAQI
15th Oct 2025182 PMAQI
15th Oct 2025173 PMAQI
15th Oct 2025154 PMAQI
15th Oct 2025175 PMAQI
15th Oct 2025216 PMAQI
15th Oct 2025337 PMAQI
15th Oct 2025168 PMAQI
15th Oct 2025129 PMAQI
15th Oct 20252410 PMAQI
15th Oct 20253711 PMAQI
16th Oct 20253112 AMAQI
16th Oct 2025111 AMAQI
16th Oct 2025392 AMAQI
16th Oct 2025383 AMAQI
16th Oct 2025404 AMAQI
16th Oct 2025425 AMAQI
16th Oct 2025456 AMAQI
13°C11/17°C
16th Oct 2025187 AMAQI
16th Oct 2025138 AMAQI
16th Oct 2025199 AMAQI
16th Oct 20252310 AMAQI
16th Oct 20251611 AMAQI
16th Oct 20251612 PMAQI
16th Oct 2025241 PMAQI
16th Oct 2025472 PMAQI
16th Oct 2025193 PMAQI
16th Oct 2025154 PMAQI
16th Oct 2025135 PMAQI
16th Oct 2025196 PMAQI
16th Oct 2025157 PMAQI
16th Oct 2025478 PMAQI
16th Oct 2025569 PMAQI
16th Oct 20255510 PMAQI
16th Oct 20255111 PMAQI
17th Oct 20255612 AMAQI
17th Oct 2025491 AMAQI
17th Oct 2025412 AMAQI
17th Oct 2025483 AMAQI
17th Oct 2025524 AMAQI
17th Oct 2025465 AMAQI
17th Oct 2025386 AMAQI
14°C8/22°C
17th Oct 2025367 AMAQI
17th Oct 2025448 AMAQI
17th Oct 2025549 AMAQI
17th Oct 20254210 AMAQI
17th Oct 20254611 AMAQI
17th Oct 20255012 PMAQI
17th Oct 2025341 PMAQI
17th Oct 2025222 PMAQI
17th Oct 2025403 PMAQI
17th Oct 2025424 PMAQI
17th Oct 2025545 PMAQI
17th Oct 2025556 PMAQI
17th Oct 2025407 PMAQI
17th Oct 2025178 PMAQI
17th Oct 2025289 PMAQI
17th Oct 20254510 PMAQI
17th Oct 20255711 PMAQI
18th Oct 20256012 AMAQI
18th Oct 2025571 AMAQI
18th Oct 2025582 AMAQI
18th Oct 2025503 AMAQI
18th Oct 2025504 AMAQI
18th Oct 2025595 AMAQI
18th Oct 2025546 AMAQI
17°C11/25°C
18th Oct 2025427 AMAQI
18th Oct 2025448 AMAQI
18th Oct 2025599 AMAQI
18th Oct 20255410 AMAQI
18th Oct 20255111 AMAQI
18th Oct 20255012 PMAQI
18th Oct 2025511 PMAQI
18th Oct 2025552 PMAQI
18th Oct 2025553 PMAQI
18th Oct 2025564 PMAQI
18th Oct 2025545 PMAQI
18th Oct 2025476 PMAQI
18th Oct 2025437 PMAQI
18th Oct 2025448 PMAQI
18th Oct 2025509 PMAQI
18th Oct 20254810 PMAQI
18th Oct 20255811 PMAQI
19th Oct 20255912 AMAQI
19th Oct 2025461 AMAQI
19th Oct 2025462 AMAQI
19th Oct 2025573 AMAQI
19th Oct 2025584 AMAQI
19th Oct 2025605 AMAQI
19th Oct 2025626 AMAQI
20°C13/29°C
19th Oct 2025577 AMAQI
19th Oct 2025598 AMAQI
19th Oct 2025569 AMAQI
19th Oct 20255210 AMAQI
19th Oct 20255411 AMAQI
19th Oct 20255112 PMAQI
19th Oct 2025551 PMAQI
19th Oct 2025412 PMAQI
19th Oct 2025343 PMAQI
19th Oct 2025404 PMAQI
19th Oct 2025175 PMAQI
19th Oct 2025166 PMAQI
19th Oct 2025167 PMAQI
19th Oct 2025188 PMAQI
19th Oct 2025149 PMAQI
19th Oct 20253510 PMAQI
19th Oct 20253611 PMAQI
20th Oct 20253612 AMAQI
20th Oct 2025571 AMAQI
20th Oct 2025452 AMAQI
20th Oct 2025423 AMAQI
20th Oct 2025554 AMAQI
20th Oct 2025565 AMAQI
20th Oct 2025506 AMAQI
21°C14/30°C
20th Oct 2025537 AMAQI
20th Oct 2025548 AMAQI
20th Oct 2025569 AMAQI
20th Oct 20253510 AMAQI
20th Oct 20251911 AMAQI
20th Oct 20252212 PMAQI
20th Oct 2025171 PMAQI
20th Oct 2025162 PMAQI
20th Oct 2025303 PMAQI
20th Oct 2025184 PMAQI
20th Oct 2025225 PMAQI
20th Oct 2025196 PMAQI
20th Oct 2025257 PMAQI
20th Oct 2025178 PMAQI
20th Oct 2025229 PMAQI
20th Oct 20252410 PMAQI
20th Oct 20253611 PMAQI
21st Oct 20255512 AMAQI
21st Oct 2025541 AMAQI
21st Oct 2025552 AMAQI
21st Oct 2025363 AMAQI
21st Oct 2025324 AMAQI
21st Oct 2025565 AMAQI
21st Oct 2025576 AMAQI
20°C12/29°C
21st Oct 2025347 AMAQI
21st Oct 2025338 AMAQI
21st Oct 2025329 AMAQI
21st Oct 20253310 AMAQI
21st Oct 20253311 AMAQI
21st Oct 20253412 PMAQI
21st Oct 2025341 PMAQI
21st Oct 2025362 PMAQI
21st Oct 2025363 PMAQI
21st Oct 2025354 PMAQI
21st Oct 2025345 PMAQI
21st Oct 2025256 PMAQI
21st Oct 2025277 PMAQI
21st Oct 2025338 PMAQI
21st Oct 2025369 PMAQI
21st Oct 20253610 PMAQI
21st Oct 20254111 PMAQI
22nd Oct 20254512 AMAQI
22nd Oct 2025391 AMAQI
22nd Oct 2025482 AMAQI
22nd Oct 2025473 AMAQI
22nd Oct 2025334 AMAQI
22nd Oct 2025365 AMAQI
22nd Oct 2025376 AMAQI
20°C12/30°C
22nd Oct 2025317 AMAQI
22nd Oct 2025288 AMAQI
22nd Oct 2025309 AMAQI
22nd Oct 20252810 AMAQI
22nd Oct 20253611 AMAQI
22nd Oct 20254212 PMAQI
22nd Oct 2025271 PMAQI
22nd Oct 2025172 PMAQI
22nd Oct 2025253 PMAQI
22nd Oct 2025294 PMAQI
22nd Oct 2025305 PMAQI
22nd Oct 2025306 PMAQI
22nd Oct 2025227 PMAQI
22nd Oct 2025228 PMAQI
22nd Oct 2025229 PMAQI
22nd Oct 20252210 PMAQI
22nd Oct 20252511 PMAQI
23rd Oct 20252512 AMAQI
23rd Oct 2025241 AMAQI
23rd Oct 2025282 AMAQI
23rd Oct 2025283 AMAQI
23rd Oct 2025284 AMAQI
23rd Oct 2025285 AMAQI
23rd Oct 2025286 AMAQI
17°C13/23°C
23rd Oct 2025287 AMAQI
23rd Oct 2025288 AMAQI
23rd Oct 2025289 AMAQI
23rd Oct 20253410 AMAQI
23rd Oct 20253911 AMAQI
23rd Oct 20254112 PMAQI
23rd Oct 2025471 PMAQI
23rd Oct 2025442 PMAQI
23rd Oct 2025423 PMAQI
23rd Oct 2025514 PMAQI
23rd Oct 2025575 PMAQI
23rd Oct 2025576 PMAQI
23rd Oct 2025527 PMAQI
23rd Oct 2025448 PMAQI
23rd Oct 2025449 PMAQI
23rd Oct 20254710 PMAQI
23rd Oct 20255011 PMAQI
24th Oct 20255212 AMAQI
24th Oct 2025521 AMAQI
24th Oct 2025522 AMAQI
24th Oct 2025553 AMAQI
24th Oct 2025564 AMAQI
24th Oct 2025555 AMAQI
24th Oct 2025556 AMAQI
16°C9/25°C
24th Oct 2025557 AMAQI
24th Oct 2025558 AMAQI
24th Oct 2025569 AMAQI
24th Oct 20255710 AMAQI
24th Oct 20255611 AMAQI
24th Oct 20255412 PMAQI
24th Oct 2025531 PMAQI
24th Oct 2025532 PMAQI
24th Oct 2025543 PMAQI
24th Oct 2025504 PMAQI
24th Oct 2025505 PMAQI
24th Oct 2025546 PMAQI
24th Oct 2025487 PMAQI
24th Oct 2025408 PMAQI
24th Oct 2025379 PMAQI
24th Oct 20254810 PMAQI
24th Oct 20254311 PMAQI
25th Oct 20252912 AMAQI
25th Oct 2025201 AMAQI
25th Oct 2025282 AMAQI
25th Oct 2025343 AMAQI
25th Oct 2025284 AMAQI
25th Oct 2025285 AMAQI
25th Oct 2025206 AMAQI
16°C11/23°C
25th Oct 2025137 AMAQI
25th Oct 2025158 AMAQI
25th Oct 2025119 AMAQI
25th Oct 20251610 AMAQI
25th Oct 20253011 AMAQI
25th Oct 20253212 PMAQI
25th Oct 2025321 PMAQI
25th Oct 2025392 PMAQI
25th Oct 2025283 PMAQI
25th Oct 2025204 PMAQI
25th Oct 2025255 PMAQI
25th Oct 2025286 PMAQI
25th Oct 2025267 PMAQI
25th Oct 2025208 PMAQI
25th Oct 2025259 PMAQI
25th Oct 20252910 PMAQI
25th Oct 20252511 PMAQI
26th Oct 20253012 AMAQI
26th Oct 2025281 AMAQI
26th Oct 2025182 AMAQI
26th Oct 2025113 AMAQI
26th Oct 2025204 AMAQI
26th Oct 2025225 AMAQI
26th Oct 2025176 AMAQI
15°C13/19°C
26th Oct 2025207 AMAQI
26th Oct 2025168 AMAQI
26th Oct 2025119 AMAQI
26th Oct 20251410 AMAQI
26th Oct 20251411 AMAQI
26th Oct 20251412 PMAQI
26th Oct 2025221 PMAQI
26th Oct 2025252 PMAQI
26th Oct 2025223 PMAQI
26th Oct 2025224 PMAQI
26th Oct 2025205 PMAQI
26th Oct 2025226 PMAQI
26th Oct 2025347 PMAQI
26th Oct 2025368 PMAQI
26th Oct 2025289 PMAQI
26th Oct 20252010 PMAQI
26th Oct 20251711 PMAQI
27th Oct 20251412 AMAQI
27th Oct 2025111 AMAQI
27th Oct 2025162 AMAQI
27th Oct 2025283 AMAQI
27th Oct 2025284 AMAQI
27th Oct 2025225 AMAQI
27th Oct 2025226 AMAQI
15°C13/19°C
27th Oct 2025227 AMAQI
27th Oct 2025168 AMAQI
27th Oct 2025159 AMAQI
27th Oct 20252010 AMAQI
27th Oct 20251411 AMAQI
27th Oct 20251612 PMAQI
27th Oct 2025161 PMAQI
27th Oct 2025162 PMAQI
27th Oct 2025213 PMAQI
27th Oct 2025204 PMAQI
27th Oct 2025205 PMAQI
27th Oct 2025166 PMAQI
27th Oct 2025147 PMAQI
27th Oct 2025148 PMAQI
27th Oct 2025229 PMAQI
27th Oct 20252510 PMAQI
27th Oct 20252011 PMAQI
28th Oct 20252012 AMAQI
28th Oct 2025281 AMAQI
28th Oct 2025392 AMAQI
28th Oct 2025303 AMAQI
28th Oct 2025334 AMAQI
28th Oct 2025445 AMAQI
28th Oct 2025336 AMAQI
16°C11/23°C
28th Oct 2025267 AMAQI
28th Oct 2025298 AMAQI
28th Oct 2025319 AMAQI
28th Oct 20253610 AMAQI
28th Oct 20253011 AMAQI
28th Oct 20251612 PMAQI
28th Oct 2025111 PMAQI
28th Oct 2025142 PMAQI
28th Oct 2025223 PMAQI
28th Oct 2025264 PMAQI
28th Oct 2025265 PMAQI
28th Oct 2025206 PMAQI
28th Oct 2025157 PMAQI
28th Oct 2025288 PMAQI
28th Oct 2025339 PMAQI
28th Oct 20252810 PMAQI
28th Oct 20252211 PMAQI
29th Oct 20252212 AMAQI
29th Oct 2025221 AMAQI
29th Oct 2025332 AMAQI
29th Oct 2025443 AMAQI
29th Oct 2025444 AMAQI
29th Oct 2025425 AMAQI
29th Oct 2025436 AMAQI
16°C8/26°C
29th Oct 2025437 AMAQI
29th Oct 2025288 AMAQI
29th Oct 2025229 AMAQI
29th Oct 20253010 AMAQI
29th Oct 20253411 AMAQI
29th Oct 20252512 PMAQI
29th Oct 2025391 PMAQI
29th Oct 2025542 PMAQI
29th Oct 2025513 PMAQI
29th Oct 2025394 PMAQI
29th Oct 2025255 PMAQI
29th Oct 2025236 PMAQI
29th Oct 2025297 PMAQI
29th Oct 2025308 PMAQI
29th Oct 2025299 PMAQI
29th Oct 20252910 PMAQI
29th Oct 20253011 PMAQI
30th Oct 20254212 AMAQI
30th Oct 2025481 AMAQI
30th Oct 2025462 AMAQI
30th Oct 2025473 AMAQI
30th Oct 2025494 AMAQI
30th Oct 2025535 AMAQI
30th Oct 2025426 AMAQI
20°C12/30°C
30th Oct 2025367 AMAQI
7 AM30th Oct 2025428 AMAQI
30th Oct 2025449 AMAQI
30th Oct 20254710 AMAQI
30th Oct 20255111 AMAQI
12 PM
6 PM
12 AM
6 AM
--°C/°C
Day time
Avg. Highest Time
9 AM - 12 PM
34AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
6 PM
30AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 AM to 12 PM (Avg. 34), while the lowest AQI was between 6 PM to 6 PM (Avg. 30).
Night time
Avg. Highest Time
5 AM
40AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
7 PM
29AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 5 AM (Avg. 40), while the lowest AQI was between 7 PM to 7 PM (Avg. 29).
2025 Days Vs Air Quality
Folsom, California, United States
2025
95%
288
5%
14
Total number of days with different AQI categories in last 303 days in 2025 (62 days remaining)
Good
288 DaysModerate
14 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 95%
Health Risk Level:
Very Low
In 2025, 95% of 303 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
Folsom, 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
49AQI
49AQI
2nd January 2025
50AQI
50AQI
3rd January 2025
48AQI
48AQI
4th January 2025
25AQI
25AQI
5th January 2025
33AQI
33AQI
6th January 2025
35AQI
35AQI
7th January 2025
23AQI
23AQI
8th January 2025
37AQI
37AQI
9th January 2025
44AQI
44AQI
10th January 2025
43AQI
43AQI
11th January 2025
34AQI
34AQI
12th January 2025
26AQI
26AQI
13th January 2025
34AQI
34AQI
14th January 2025
31AQI
31AQI
15th January 2025
39AQI
39AQI
16th January 2025
38AQI
38AQI
17th January 2025
43AQI
43AQI
18th January 2025
57AQI
57AQI
19th January 2025
56AQI
56AQI
20th January 2025
45AQI
45AQI
21st January 2025
38AQI
38AQI
22nd January 2025
47AQI
47AQI
23rd January 2025
49AQI
49AQI
24th January 2025
50AQI
50AQI
25th January 2025
58AQI
58AQI
26th January 2025
32AQI
32AQI
27th January 2025
29AQI
29AQI
28th January 2025
47AQI
47AQI
29th January 2025
51AQI
51AQI
30th January 2025
57AQI
57AQI
31st January 2025
54AQI
54AQI
1st February 2025
35AQI
35AQI
2nd February 2025
23AQI
23AQI
3rd February 2025
22AQI
22AQI
4th February 2025
24AQI
24AQI
5th February 2025
26AQI
26AQI
6th February 2025
25AQI
25AQI
7th February 2025
25AQI
25AQI
8th February 2025
24AQI
24AQI
9th February 2025
28AQI
28AQI
10th February 2025
31AQI
31AQI
11th February 2025
36AQI
36AQI
12th February 2025
36AQI
36AQI
13th February 2025
27AQI
27AQI
14th February 2025
27AQI
27AQI
15th February 2025
26AQI
26AQI
16th February 2025
28AQI
28AQI
17th February 2025
26AQI
26AQI
18th February 2025
25AQI
25AQI
19th February 2025
23AQI
23AQI
20th February 2025
24AQI
24AQI
21st February 2025
26AQI
26AQI
22nd February 2025
34AQI
34AQI
23rd February 2025
32AQI
32AQI
24th February 2025
29AQI
29AQI
25th February 2025
22AQI
22AQI
26th February 2025
28AQI
28AQI
27th February 2025
33AQI
33AQI
28th February 2025
36AQI
36AQI
1st March 2025
31AQI
31AQI
2nd March 2025
26AQI
26AQI
3rd March 2025
22AQI
22AQI
4th March 2025
23AQI
23AQI
5th March 2025
27AQI
27AQI
6th March 2025
25AQI
25AQI
7th March 2025
26AQI
26AQI
8th March 2025
27AQI
27AQI
9th March 2025
31AQI
31AQI
10th March 2025
30AQI
30AQI
11th March 2025
33AQI
33AQI
12th March 2025
27AQI
27AQI
13th March 2025
20AQI
20AQI
14th March 2025
18AQI
18AQI
15th March 2025
39AQI
39AQI
16th March 2025
38AQI
38AQI
17th March 2025
16AQI
16AQI
18th March 2025
17AQI
17AQI
19th March 2025
20AQI
20AQI
20th March 2025
16AQI
16AQI
21st March 2025
21AQI
21AQI
22nd March 2025
22AQI
22AQI
23rd March 2025
27AQI
27AQI
24th March 2025
26AQI
26AQI
25th March 2025
28AQI
28AQI
26th March 2025
27AQI
27AQI
27th March 2025
23AQI
23AQI
28th March 2025
26AQI
26AQI
29th March 2025
20AQI
20AQI
30th March 2025
25AQI
25AQI
31st March 2025
24AQI
24AQI
1st April 2025
19AQI
19AQI
2nd April 2025
17AQI
17AQI
3rd April 2025
22AQI
22AQI
4th April 2025
22AQI
22AQI
5th April 2025
24AQI
24AQI
6th April 2025
29AQI
29AQI
7th April 2025
17AQI
17AQI
8th April 2025
17AQI
17AQI
9th April 2025
21AQI
21AQI
10th April 2025
30AQI
30AQI
11th April 2025
24AQI
24AQI
12th April 2025
29AQI
29AQI
13th April 2025
35AQI
35AQI
14th April 2025
32AQI
32AQI
15th April 2025
36AQI
36AQI
16th April 2025
39AQI
39AQI
17th April 2025
25AQI
25AQI
18th April 2025
28AQI
28AQI
19th April 2025
29AQI
29AQI
20th April 2025
33AQI
33AQI
21st April 2025
32AQI
32AQI
22nd April 2025
36AQI
36AQI
23rd April 2025
47AQI
47AQI
24th April 2025
45AQI
45AQI
25th April 2025
24AQI
24AQI
26th April 2025
24AQI
24AQI
27th April 2025
22AQI
22AQI
28th April 2025
25AQI
25AQI
29th April 2025
38AQI
38AQI
30th April 2025
46AQI
46AQI
1st May 2025
45AQI
45AQI
2nd May 2025
40AQI
40AQI
3rd May 2025
23AQI
23AQI
4th May 2025
34AQI
34AQI
5th May 2025
24AQI
24AQI
6th May 2025
24AQI
24AQI
7th May 2025
51AQI
51AQI
8th May 2025
43AQI
43AQI
9th May 2025
38AQI
38AQI
10th May 2025
33AQI
33AQI
11th May 2025
28AQI
28AQI
12th May 2025
18AQI
18AQI
13th May 2025
20AQI
20AQI
14th May 2025
19AQI
19AQI
15th May 2025
25AQI
25AQI
16th May 2025
36AQI
36AQI
17th May 2025
31AQI
31AQI
18th May 2025
30AQI
30AQI
19th May 2025
23AQI
23AQI
20th May 2025
23AQI
23AQI
21st May 2025
31AQI
31AQI
22nd May 2025
31AQI
31AQI
23rd May 2025
27AQI
27AQI
24th May 2025
38AQI
38AQI
25th May 2025
29AQI
29AQI
26th May 2025
22AQI
22AQI
27th May 2025
28AQI
28AQI
28th May 2025
35AQI
35AQI
29th May 2025
31AQI
31AQI
30th May 2025
41AQI
41AQI
31st May 2025
42AQI
42AQI
1st June 2025
46AQI
46AQI
2nd June 2025
54AQI
54AQI
3rd June 2025
45AQI
45AQI
4th June 2025
50AQI
50AQI
5th June 2025
44AQI
44AQI
6th June 2025
35AQI
35AQI
7th June 2025
37AQI
37AQI
8th June 2025
31AQI
31AQI
9th June 2025
29AQI
29AQI
10th June 2025
34AQI
34AQI
11th June 2025
45AQI
45AQI
12th June 2025
52AQI
52AQI
13th June 2025
49AQI
49AQI
14th June 2025
42AQI
42AQI
15th June 2025
39AQI
39AQI
16th June 2025
41AQI
41AQI
17th June 2025
40AQI
40AQI
18th June 2025
39AQI
39AQI
19th June 2025
40AQI
40AQI
20th June 2025
44AQI
44AQI
21st June 2025
32AQI
32AQI
22nd June 2025
27AQI
27AQI
23rd June 2025
29AQI
29AQI
24th June 2025
29AQI
29AQI
25th June 2025
33AQI
33AQI
26th June 2025
33AQI
33AQI
27th June 2025
40AQI
40AQI
28th June 2025
44AQI
44AQI
29th June 2025
39AQI
39AQI
30th June 2025
33AQI
33AQI
1st July 2025
34AQI
34AQI
2nd July 2025
38AQI
38AQI
3rd July 2025
45AQI
45AQI
4th July 2025
35AQI
35AQI
5th July 2025
48AQI
48AQI
6th July 2025
38AQI
38AQI
7th July 2025
30AQI
30AQI
8th July 2025
26AQI
26AQI
9th July 2025
25AQI
25AQI
10th July 2025
33AQI
33AQI
11th July 2025
53AQI
53AQI
12th July 2025
56AQI
56AQI
13th July 2025
44AQI
44AQI
14th July 2025
34AQI
34AQI
15th July 2025
29AQI
29AQI
16th July 2025
28AQI
28AQI
17th July 2025
23AQI
23AQI
18th July 2025
25AQI
25AQI
19th July 2025
28AQI
28AQI
20th July 2025
25AQI
25AQI
21st July 2025
29AQI
29AQI
22nd July 2025
19AQI
19AQI
23rd July 2025
18AQI
18AQI
24th July 2025
18AQI
18AQI
25th July 2025
18AQI
18AQI
26th July 2025
17AQI
17AQI
27th July 2025
18AQI
18AQI
28th July 2025
21AQI
21AQI
29th July 2025
24AQI
24AQI
30th July 2025
29AQI
29AQI
31st July 2025
32AQI
32AQI
1st August 2025
36AQI
36AQI
2nd August 2025
33AQI
33AQI
3rd August 2025
33AQI
33AQI
4th August 2025
39AQI
39AQI
5th August 2025
29AQI
29AQI
6th August 2025
32AQI
32AQI
7th August 2025
29AQI
29AQI
8th August 2025
30AQI
30AQI
9th August 2025
37AQI
37AQI
10th August 2025
35AQI
35AQI
11th August 2025
37AQI
37AQI
12th August 2025
39AQI
39AQI
13th August 2025
35AQI
35AQI
14th August 2025
29AQI
29AQI
15th August 2025
37AQI
37AQI
16th August 2025
26AQI
26AQI
17th August 2025
19AQI
19AQI
18th August 2025
22AQI
22AQI
19th August 2025
24AQI
24AQI
20th August 2025
30AQI
30AQI
21st August 2025
37AQI
37AQI
22nd August 2025
49AQI
49AQI
23rd August 2025
47AQI
47AQI
24th August 2025
41AQI
41AQI
25th August 2025
36AQI
36AQI
26th August 2025
38AQI
38AQI
27th August 2025
44AQI
44AQI
28th August 2025
44AQI
44AQI
29th August 2025
36AQI
36AQI
30th August 2025
33AQI
33AQI
31st August 2025
34AQI
34AQI
1st September 2025
34AQI
34AQI
2nd September 2025
50AQI
50AQI
3rd September 2025
41AQI
41AQI
4th September 2025
32AQI
32AQI
5th September 2025
33AQI
33AQI
6th September 2025
43AQI
43AQI
7th September 2025
29AQI
29AQI
8th September 2025
23AQI
23AQI
9th September 2025
19AQI
19AQI
10th September 2025
19AQI
19AQI
11th September 2025
25AQI
25AQI
12th September 2025
35AQI
35AQI
13th September 2025
42AQI
42AQI
14th September 2025
31AQI
31AQI
15th September 2025
29AQI
29AQI
16th September 2025
38AQI
38AQI
17th September 2025
42AQI
42AQI
18th September 2025
43AQI
43AQI
19th September 2025
50AQI
50AQI
20th September 2025
54AQI
54AQI
21st September 2025
44AQI
44AQI
22nd September 2025
40AQI
40AQI
23rd September 2025
39AQI
39AQI
24th September 2025
43AQI
43AQI
25th September 2025
41AQI
41AQI
26th September 2025
49AQI
49AQI
27th September 2025
50AQI
50AQI
28th September 2025
36AQI
36AQI
29th September 2025
22AQI
22AQI
30th September 2025
20AQI
20AQI
1st October 2025
17AQI
17AQI
2nd October 2025
35AQI
35AQI
3rd October 2025
28AQI
28AQI
4th October 2025
41AQI
41AQI
5th October 2025
43AQI
43AQI
6th October 2025
41AQI
41AQI
7th October 2025
38AQI
38AQI
8th October 2025
43AQI
43AQI
9th October 2025
47AQI
47AQI
10th October 2025
39AQI
39AQI
11th October 2025
28AQI
28AQI
12th October 2025
23AQI
23AQI
13th October 2025
38AQI
38AQI
14th October 2025
19AQI
19AQI
15th October 2025
23AQI
23AQI
16th October 2025
30AQI
30AQI
17th October 2025
44AQI
44AQI
18th October 2025
52AQI
52AQI
19th October 2025
42AQI
42AQI
20th October 2025
35AQI
35AQI
21st October 2025
38AQI
38AQI
22nd October 2025
33AQI
33AQI
23rd October 2025
38AQI
38AQI
24th October 2025
51AQI
51AQI
25th October 2025
25AQI
25AQI
26th October 2025
21AQI
21AQI
27th October 2025
19AQI
19AQI
28th October 2025
27AQI
27AQI
29th October 2025
34AQI
34AQI
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
42AQI
28AQI
25AQI
29AQI
31AQI
39AQI
30AQI
35AQI
37AQI
34AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202533AQI
25
6
28
31
30
30
1
28
2
29
2
31
29
1
27
2
288
14
Highest AQI recorded in
January42AQI
Lowest AQI recorded in
March25AQI
202430AQI
31
29
31
30
31
28
1
30
1
31
30
31
26
4
22
9
350
15
Highest AQI recorded in
December39AQI
Lowest AQI recorded in
February24AQI
202334AQI
29
2
24
4
31
30
30
1
30
27
4
30
1
26
4
31
28
25
6
341
22
Highest AQI recorded in
February40AQI
Lowest AQI recorded in
November21AQI
202234AQI
19
11
20
1
31
25
31
30
23
1
25
4
31
29
1
22
9
287
26
Highest AQI recorded in
August43AQI
Lowest AQI recorded in
July29AQI
202146AQI
2
20
26
4
27
4
13
11
4
1
2
15
14
1
28
3
21
9
26
5
178
50
5
1
2
Highest AQI recorded in
August76AQI
Lowest AQI recorded in
December30AQI
Most & Least Polluted Years Over the Last 5 Years
Most Polluted Year Recorded
2021(Avg.)
46AQILeast Polluted Year Recorded
2024(Avg.)
30AQIFolsom's annual 2025 AQI (33) shows an average percentage change of -6.003% (improved AQI) compared to previous years: 2021 (46), 2022 (34), 2023 (34), 2024 (30).
