Winters, 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
Winters, California, United States
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
25th Oct 2024
61AQILowest AQI recorded on
31st Oct 2024
17AQISame Day Analysis (24th October ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 1st highest AQI at 43 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 24th Oct - 25th Oct 2025
Winters, California, United States
AQI
Day
Night
.
7 AM24th Oct 2025
6 PM
6 AM25th Oct 2025
Day time
Avg. Highest Time
2PM24th Oct
53AQI
Avg. Lowest Time
6PM24th Oct
31AQI
Night time
Avg. Highest Time
10PM24th Oct
38AQI
Avg. Lowest Time
3AM25th Oct
19AQI
In the last 24 hours,
Winters's AQI reached its highest point of 53 at 2 PM during the Day, while the lowest point, 19, was recorded at 3 AM during the Night between 24th Oct and 25th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Winters, California, United States
SepOct
25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 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
Day
Night
25th Sep 2025417 AMAQI
25th Sep 2025358 AMAQI
25th Sep 2025309 AMAQI
25th Sep 20253210 AMAQI
25th Sep 20254011 AMAQI
25th Sep 20254612 PMAQI
25th Sep 2025441 PMAQI
25th Sep 2025372 PMAQI
25th Sep 2025363 PMAQI
25th Sep 2025334 PMAQI
25th Sep 2025365 PMAQI
25th Sep 2025396 PMAQI
25th Sep 2025387 PMAQI
25th Sep 2025458 PMAQI
25th Sep 2025489 PMAQI
25th Sep 20254210 PMAQI
25th Sep 20254011 PMAQI
26th Sep 20253812 AMAQI
26th Sep 2025351 AMAQI
26th Sep 2025342 AMAQI
26th Sep 2025363 AMAQI
26th Sep 2025434 AMAQI
26th Sep 2025455 AMAQI
26th Sep 2025376 AMAQI
26°C21/35°C
26th Sep 2025367 AMAQI
26th Sep 2025278 AMAQI
26th Sep 2025269 AMAQI
26th Sep 20253510 AMAQI
26th Sep 20254911 AMAQI
26th Sep 20255512 PMAQI
26th Sep 2025521 PMAQI
26th Sep 2025522 PMAQI
26th Sep 2025573 PMAQI
26th Sep 2025544 PMAQI
26th Sep 2025525 PMAQI
26th Sep 2025536 PMAQI
26th Sep 2025497 PMAQI
26th Sep 2025448 PMAQI
26th Sep 2025519 PMAQI
26th Sep 20255810 PMAQI
26th Sep 20256211 PMAQI
27th Sep 20256612 AMAQI
27th Sep 2025641 AMAQI
27th Sep 2025582 AMAQI
27th Sep 2025593 AMAQI
27th Sep 2025604 AMAQI
27th Sep 2025635 AMAQI
27th Sep 2025606 AMAQI
25°C14/37°C
27th Sep 2025577 AMAQI
27th Sep 2025548 AMAQI
27th Sep 2025549 AMAQI
27th Sep 20255610 AMAQI
27th Sep 20255911 AMAQI
27th Sep 20256112 PMAQI
27th Sep 2025591 PMAQI
27th Sep 2025572 PMAQI
27th Sep 2025543 PMAQI
27th Sep 2025484 PMAQI
27th Sep 2025515 PMAQI
27th Sep 2025506 PMAQI
27th Sep 2025507 PMAQI
27th Sep 2025458 PMAQI
27th Sep 2025439 PMAQI
27th Sep 20254510 PMAQI
27th Sep 20254911 PMAQI
28th Sep 20254612 AMAQI
28th Sep 2025431 AMAQI
28th Sep 2025402 AMAQI
28th Sep 2025393 AMAQI
28th Sep 2025484 AMAQI
28th Sep 2025475 AMAQI
28th Sep 2025366 AMAQI
25°C17/33°C
28th Sep 2025387 AMAQI
28th Sep 2025398 AMAQI
28th Sep 2025349 AMAQI
28th Sep 20252210 AMAQI
28th Sep 20252111 AMAQI
28th Sep 20253312 PMAQI
28th Sep 2025391 PMAQI
28th Sep 2025392 PMAQI
28th Sep 2025393 PMAQI
28th Sep 2025394 PMAQI
28th Sep 2025375 PMAQI
28th Sep 2025376 PMAQI
28th Sep 2025387 PMAQI
28th Sep 2025388 PMAQI
28th Sep 2025449 PMAQI
28th Sep 20254810 PMAQI
28th Sep 20254811 PMAQI
29th Sep 20254412 AMAQI
29th Sep 2025431 AMAQI
29th Sep 2025412 AMAQI
29th Sep 2025413 AMAQI
29th Sep 2025374 AMAQI
29th Sep 2025355 AMAQI
29th Sep 2025346 AMAQI
20°C15/25°C
29th Sep 2025317 AMAQI
29th Sep 2025258 AMAQI
29th Sep 2025269 AMAQI
29th Sep 20252710 AMAQI
29th Sep 20253011 AMAQI
29th Sep 20252612 PMAQI
29th Sep 2025301 PMAQI
29th Sep 2025322 PMAQI
29th Sep 2025293 PMAQI
29th Sep 2025294 PMAQI
29th Sep 2025315 PMAQI
29th Sep 2025326 PMAQI
29th Sep 2025387 PMAQI
29th Sep 2025398 PMAQI
29th Sep 2025399 PMAQI
29th Sep 20253510 PMAQI
29th Sep 20254011 PMAQI
30th Sep 20254112 AMAQI
30th Sep 2025381 AMAQI
30th Sep 2025372 AMAQI
30th Sep 2025293 AMAQI
30th Sep 2025274 AMAQI
30th Sep 2025265 AMAQI
30th Sep 2025256 AMAQI
20°C17/27°C
30th Sep 2025287 AMAQI
30th Sep 2025258 AMAQI
30th Sep 2025279 AMAQI
30th Sep 20252310 AMAQI
30th Sep 20253011 AMAQI
30th Sep 20252612 PMAQI
30th Sep 2025231 PMAQI
30th Sep 2025242 PMAQI
30th Sep 2025273 PMAQI
30th Sep 2025314 PMAQI
30th Sep 2025285 PMAQI
30th Sep 2025216 PMAQI
30th Sep 2025227 PMAQI
30th Sep 2025218 PMAQI
30th Sep 2025179 PMAQI
30th Sep 20252110 PMAQI
30th Sep 20252711 PMAQI
1st Oct 20252812 AMAQI
1st Oct 2025281 AMAQI
1st Oct 2025282 AMAQI
1st Oct 2025273 AMAQI
1st Oct 2025174 AMAQI
1st Oct 2025195 AMAQI
1st Oct 2025206 AMAQI
20°C16/25°C
1st Oct 2025187 AMAQI
1st Oct 2025178 AMAQI
1st Oct 2025239 AMAQI
1st Oct 20252310 AMAQI
1st Oct 20252211 AMAQI
1st Oct 20253012 PMAQI
1st Oct 2025391 PMAQI
1st Oct 2025402 PMAQI
1st Oct 2025263 PMAQI
1st Oct 2025234 PMAQI
1st Oct 2025245 PMAQI
1st Oct 2025246 PMAQI
1st Oct 2025287 PMAQI
1st Oct 2025258 PMAQI
1st Oct 2025249 PMAQI
1st Oct 20252510 PMAQI
1st Oct 20252711 PMAQI
2nd Oct 20252312 AMAQI
2nd Oct 2025231 AMAQI
2nd Oct 2025222 AMAQI
2nd Oct 2025353 AMAQI
2nd Oct 2025244 AMAQI
2nd Oct 2025395 AMAQI
2nd Oct 2025446 AMAQI
19°C16/24°C
2nd Oct 2025427 AMAQI
2nd Oct 2025228 AMAQI
2nd Oct 2025339 AMAQI
2nd Oct 20254610 AMAQI
2nd Oct 20254111 AMAQI
2nd Oct 20254012 PMAQI
2nd Oct 2025361 PMAQI
2nd Oct 2025182 PMAQI
2nd Oct 2025323 PMAQI
2nd Oct 2025364 PMAQI
2nd Oct 2025345 PMAQI
2nd Oct 2025286 PMAQI
2nd Oct 2025247 PMAQI
2nd Oct 2025398 PMAQI
2nd Oct 2025529 PMAQI
2nd Oct 20254110 PMAQI
2nd Oct 20254711 PMAQI
3rd Oct 20253812 AMAQI
3rd Oct 2025481 AMAQI
3rd Oct 2025412 AMAQI
3rd Oct 2025383 AMAQI
3rd Oct 2025334 AMAQI
3rd Oct 2025355 AMAQI
3rd Oct 2025236 AMAQI
20°C15/26°C
3rd Oct 2025247 AMAQI
3rd Oct 2025228 AMAQI
3rd Oct 2025449 AMAQI
3rd Oct 20253810 AMAQI
3rd Oct 20254111 AMAQI
3rd Oct 20254012 PMAQI
3rd Oct 2025401 PMAQI
3rd Oct 2025462 PMAQI
3rd Oct 2025453 PMAQI
3rd Oct 2025394 PMAQI
3rd Oct 2025305 PMAQI
3rd Oct 2025356 PMAQI
3rd Oct 2025457 PMAQI
3rd Oct 2025318 PMAQI
3rd Oct 2025399 PMAQI
3rd Oct 20252310 PMAQI
3rd Oct 20252411 PMAQI
4th Oct 20254912 AMAQI
4th Oct 2025511 AMAQI
4th Oct 2025542 AMAQI
4th Oct 2025473 AMAQI
4th Oct 2025314 AMAQI
4th Oct 2025505 AMAQI
4th Oct 2025516 AMAQI
18°C15/24°C
4th Oct 2025507 AMAQI
4th Oct 2025548 AMAQI
4th Oct 2025529 AMAQI
4th Oct 20254010 AMAQI
4th Oct 20253111 AMAQI
4th Oct 20255012 PMAQI
4th Oct 2025461 PMAQI
4th Oct 2025452 PMAQI
4th Oct 2025393 PMAQI
4th Oct 2025244 PMAQI
4th Oct 2025195 PMAQI
4th Oct 2025276 PMAQI
4th Oct 2025507 PMAQI
4th Oct 2025258 PMAQI
4th Oct 2025359 PMAQI
4th Oct 20255210 PMAQI
4th Oct 20254911 PMAQI
5th Oct 20254712 AMAQI
5th Oct 2025551 AMAQI
5th Oct 2025552 AMAQI
5th Oct 2025463 AMAQI
5th Oct 2025474 AMAQI
5th Oct 2025455 AMAQI
5th Oct 2025366 AMAQI
20°C13/28°C
5th Oct 2025327 AMAQI
5th Oct 2025298 AMAQI
5th Oct 2025419 AMAQI
5th Oct 20254110 AMAQI
5th Oct 20254211 AMAQI
5th Oct 20254212 PMAQI
5th Oct 2025451 PMAQI
5th Oct 2025452 PMAQI
5th Oct 2025473 PMAQI
5th Oct 2025484 PMAQI
5th Oct 2025445 PMAQI
5th Oct 2025406 PMAQI
5th Oct 2025467 PMAQI
5th Oct 2025458 PMAQI
5th Oct 2025359 PMAQI
5th Oct 20254410 PMAQI
5th Oct 20255811 PMAQI
6th Oct 20256012 AMAQI
6th Oct 2025531 AMAQI
6th Oct 2025492 AMAQI
6th Oct 2025413 AMAQI
6th Oct 2025354 AMAQI
6th Oct 2025445 AMAQI
6th Oct 2025396 AMAQI
21°C15/28°C
6th Oct 2025287 AMAQI
6th Oct 2025238 AMAQI
6th Oct 2025399 AMAQI
6th Oct 20254210 AMAQI
7th Oct 2025334 AMAQI
7th Oct 2025225 AMAQI
7th Oct 2025376 AMAQI
23°C16/32°C
7th Oct 2025427 AMAQI
7th Oct 2025498 AMAQI
7th Oct 2025349 AMAQI
7th Oct 20254910 AMAQI
7th Oct 20255011 AMAQI
7th Oct 20255212 PMAQI
7th Oct 2025561 PMAQI
7th Oct 2025492 PMAQI
7th Oct 2025463 PMAQI
7th Oct 2025444 PMAQI
7th Oct 2025295 PMAQI
7th Oct 2025356 PMAQI
7th Oct 2025307 PMAQI
7th Oct 2025388 PMAQI
7th Oct 2025509 PMAQI
7th Oct 20256210 PMAQI
7th Oct 20255311 PMAQI
8th Oct 20255012 AMAQI
8th Oct 2025531 AMAQI
8th Oct 2025562 AMAQI
8th Oct 2025553 AMAQI
8th Oct 2025564 AMAQI
8th Oct 2025595 AMAQI
8th Oct 2025616 AMAQI
25°C17/33°C
8th Oct 2025577 AMAQI
8th Oct 2025608 AMAQI
8th Oct 2025659 AMAQI
8th Oct 20255710 AMAQI
8th Oct 20255411 AMAQI
8th Oct 20255712 PMAQI
8th Oct 2025581 PMAQI
8th Oct 2025582 PMAQI
8th Oct 2025583 PMAQI
8th Oct 2025534 PMAQI
8th Oct 2025545 PMAQI
8th Oct 2025646 PMAQI
8th Oct 2025527 PMAQI
8th Oct 2025508 PMAQI
8th Oct 2025489 PMAQI
8th Oct 20255710 PMAQI
8th Oct 20255911 PMAQI
9th Oct 20255612 AMAQI
9th Oct 2025541 AMAQI
9th Oct 2025552 AMAQI
9th Oct 2025513 AMAQI
9th Oct 2025524 AMAQI
9th Oct 2025505 AMAQI
9th Oct 2025536 AMAQI
21°C14/30°C
9th Oct 2025567 AMAQI
9th Oct 2025528 AMAQI
9th Oct 2025499 AMAQI
9th Oct 20255110 AMAQI
9th Oct 20255011 AMAQI
9th Oct 20255212 PMAQI
9th Oct 2025441 PMAQI
9th Oct 2025512 PMAQI
9th Oct 2025533 PMAQI
9th Oct 2025514 PMAQI
9th Oct 2025455 PMAQI
9th Oct 2025466 PMAQI
9th Oct 2025527 PMAQI
9th Oct 2025518 PMAQI
9th Oct 2025429 PMAQI
9th Oct 20254210 PMAQI
9th Oct 20254911 PMAQI
10th Oct 20254812 AMAQI
10th Oct 2025401 AMAQI
10th Oct 2025382 AMAQI
10th Oct 2025423 AMAQI
10th Oct 2025514 AMAQI
10th Oct 2025565 AMAQI
10th Oct 2025516 AMAQI
17°C13/23°C
10th Oct 2025587 AMAQI
10th Oct 2025488 AMAQI
10th Oct 2025539 AMAQI
10th Oct 20255010 AMAQI
10th Oct 20255411 AMAQI
10th Oct 20255112 PMAQI
10th Oct 2025471 PMAQI
10th Oct 2025442 PMAQI
10th Oct 2025403 PMAQI
10th Oct 2025304 PMAQI
10th Oct 2025365 PMAQI
10th Oct 2025306 PMAQI
10th Oct 2025457 PMAQI
10th Oct 2025448 PMAQI
10th Oct 2025449 PMAQI
10th Oct 20254810 PMAQI
10th Oct 20253211 PMAQI
11th Oct 20253212 AMAQI
11th Oct 2025351 AMAQI
11th Oct 2025402 AMAQI
11th Oct 2025343 AMAQI
11th Oct 2025204 AMAQI
11th Oct 2025305 AMAQI
11th Oct 2025496 AMAQI
17°C10/26°C
11th Oct 2025527 AMAQI
11th Oct 2025448 AMAQI
11th Oct 2025409 AMAQI
11th Oct 20254010 AMAQI
11th Oct 20252011 AMAQI
11th Oct 20252912 PMAQI
11th Oct 2025191 PMAQI
11th Oct 2025182 PMAQI
11th Oct 2025163 PMAQI
11th Oct 2025154 PMAQI
11th Oct 2025205 PMAQI
11th Oct 2025296 PMAQI
11th Oct 2025387 PMAQI
11th Oct 2025318 PMAQI
11th Oct 2025369 PMAQI
11th Oct 20254810 PMAQI
11th Oct 20255711 PMAQI
12th Oct 20256212 AMAQI
12th Oct 2025621 AMAQI
12th Oct 2025632 AMAQI
12th Oct 2025623 AMAQI
12th Oct 2025624 AMAQI
12th Oct 2025525 AMAQI
12th Oct 2025486 AMAQI
17°C10/25°C
12th Oct 2025367 AMAQI
12th Oct 2025228 AMAQI
12th Oct 2025329 AMAQI
12th Oct 20254810 AMAQI
12th Oct 20255011 AMAQI
12th Oct 20254312 PMAQI
12th Oct 2025321 PMAQI
12th Oct 2025242 PMAQI
12th Oct 2025253 PMAQI
12th Oct 2025284 PMAQI
12th Oct 2025235 PMAQI
12th Oct 2025316 PMAQI
12th Oct 2025517 PMAQI
12th Oct 2025518 PMAQI
12th Oct 2025519 PMAQI
12th Oct 20254610 PMAQI
12th Oct 20253811 PMAQI
13th Oct 20254512 AMAQI
13th Oct 2025441 AMAQI
13th Oct 2025512 AMAQI
13th Oct 2025543 AMAQI
13th Oct 2025554 AMAQI
13th Oct 2025565 AMAQI
13th Oct 2025586 AMAQI
18°C12/27°C
13th Oct 2025547 AMAQI
13th Oct 2025368 AMAQI
13th Oct 2025339 AMAQI
13th Oct 20254610 AMAQI
13th Oct 20254811 AMAQI
13th Oct 20255112 PMAQI
13th Oct 2025431 PMAQI
13th Oct 2025502 PMAQI
13th Oct 2025373 PMAQI
13th Oct 2025354 PMAQI
13th Oct 2025335 PMAQI
13th Oct 2025356 PMAQI
13th Oct 2025417 PMAQI
13th Oct 2025428 PMAQI
13th Oct 2025349 PMAQI
13th Oct 20252910 PMAQI
13th Oct 20252311 PMAQI
14th Oct 20253612 AMAQI
14th Oct 2025461 AMAQI
14th Oct 2025312 AMAQI
14th Oct 2025413 AMAQI
14th Oct 2025524 AMAQI
14th Oct 2025385 AMAQI
14th Oct 2025326 AMAQI
14°C10/20°C
14th Oct 2025337 AMAQI
14th Oct 2025298 AMAQI
14th Oct 2025239 AMAQI
14th Oct 20252510 AMAQI
14th Oct 20253211 AMAQI
14th Oct 20253212 PMAQI
14th Oct 2025321 PMAQI
14th Oct 2025162 PMAQI
14th Oct 2025123 PMAQI
14th Oct 2025404 PMAQI
14th Oct 2025535 PMAQI
14th Oct 2025356 PMAQI
14th Oct 2025277 PMAQI
14th Oct 2025328 PMAQI
14th Oct 2025339 PMAQI
14th Oct 20252510 PMAQI
14th Oct 20252311 PMAQI
15th Oct 20252512 AMAQI
15th Oct 2025251 AMAQI
15th Oct 2025212 AMAQI
15th Oct 2025223 AMAQI
15th Oct 2025264 AMAQI
15th Oct 2025275 AMAQI
15th Oct 2025246 AMAQI
12°C10/16°C
15th Oct 2025317 AMAQI
15th Oct 2025298 AMAQI
15th Oct 2025289 AMAQI
15th Oct 20253810 AMAQI
15th Oct 20253811 AMAQI
15th Oct 20254712 PMAQI
15th Oct 2025521 PMAQI
15th Oct 2025552 PMAQI
15th Oct 2025533 PMAQI
15th Oct 2025524 PMAQI
15th Oct 2025345 PMAQI
15th Oct 2025186 PMAQI
15th Oct 2025267 PMAQI
15th Oct 2025378 PMAQI
15th Oct 2025209 PMAQI
15th Oct 20253410 PMAQI
15th Oct 20255211 PMAQI
16th Oct 20255412 AMAQI
16th Oct 2025581 AMAQI
16th Oct 2025522 AMAQI
16th Oct 2025503 AMAQI
16th Oct 2025474 AMAQI
16th Oct 2025485 AMAQI
16th Oct 2025446 AMAQI
13°C11/18°C
16th Oct 2025217 AMAQI
16th Oct 2025298 AMAQI
16th Oct 2025429 AMAQI
16th Oct 20255310 AMAQI
16th Oct 20257211 AMAQI
16th Oct 20257612 PMAQI
16th Oct 2025481 PMAQI
16th Oct 2025282 PMAQI
16th Oct 2025243 PMAQI
16th Oct 2025224 PMAQI
16th Oct 2025415 PMAQI
16th Oct 2025686 PMAQI
16th Oct 2025677 PMAQI
16th Oct 2025708 PMAQI
16th Oct 2025689 PMAQI
16th Oct 20255010 PMAQI
16th Oct 20255411 PMAQI
17th Oct 20255412 AMAQI
17th Oct 2025511 AMAQI
17th Oct 2025562 AMAQI
17th Oct 2025593 AMAQI
17th Oct 2025514 AMAQI
17th Oct 2025565 AMAQI
17th Oct 2025586 AMAQI
15°C9/23°C
17th Oct 2025627 AMAQI
17th Oct 2025538 AMAQI
17th Oct 2025559 AMAQI
17th Oct 20255510 AMAQI
17th Oct 20255311 AMAQI
17th Oct 20254812 PMAQI
17th Oct 2025461 PMAQI
17th Oct 2025472 PMAQI
17th Oct 2025453 PMAQI
17th Oct 2025414 PMAQI
17th Oct 2025315 PMAQI
17th Oct 2025286 PMAQI
17th Oct 2025297 PMAQI
17th Oct 2025368 PMAQI
17th Oct 2025569 PMAQI
17th Oct 20255610 PMAQI
17th Oct 20255811 PMAQI
18th Oct 20255812 AMAQI
18th Oct 2025591 AMAQI
18th Oct 2025582 AMAQI
18th Oct 2025583 AMAQI
18th Oct 2025584 AMAQI
18th Oct 2025615 AMAQI
18th Oct 2025656 AMAQI
17°C10/26°C
18th Oct 2025667 AMAQI
18th Oct 2025578 AMAQI
18th Oct 2025619 AMAQI
18th Oct 20255810 AMAQI
18th Oct 20255611 AMAQI
18th Oct 20256312 PMAQI
18th Oct 2025591 PMAQI
18th Oct 2025602 PMAQI
18th Oct 2025533 PMAQI
18th Oct 2025524 PMAQI
18th Oct 2025475 PMAQI
18th Oct 2025526 PMAQI
18th Oct 2025477 PMAQI
18th Oct 2025508 PMAQI
18th Oct 2025569 PMAQI
18th Oct 20255610 PMAQI
18th Oct 20255311 PMAQI
19th Oct 20255212 AMAQI
19th Oct 2025501 AMAQI
19th Oct 2025562 AMAQI
19th Oct 2025513 AMAQI
19th Oct 2025574 AMAQI
19th Oct 2025625 AMAQI
19th Oct 2025556 AMAQI
18°C11/28°C
19th Oct 2025607 AMAQI
19th Oct 2025708 AMAQI
19th Oct 2025629 AMAQI
19th Oct 20256010 AMAQI
19th Oct 20255811 AMAQI
19th Oct 20256112 PMAQI
19th Oct 2025601 PMAQI
19th Oct 2025582 PMAQI
19th Oct 2025563 PMAQI
19th Oct 2025474 PMAQI
19th Oct 2025345 PMAQI
19th Oct 2025376 PMAQI
19th Oct 2025287 PMAQI
19th Oct 2025488 PMAQI
19th Oct 2025509 PMAQI
19th Oct 20255310 PMAQI
19th Oct 20254511 PMAQI
20th Oct 20254912 AMAQI
20th Oct 2025541 AMAQI
20th Oct 2025522 AMAQI
20th Oct 2025573 AMAQI
20th Oct 2025584 AMAQI
20th Oct 2025565 AMAQI
20th Oct 2025426 AMAQI
20°C11/29°C
20th Oct 2025417 AMAQI
20th Oct 2025368 AMAQI
20th Oct 2025159 AMAQI
20th Oct 20251610 AMAQI
20th Oct 20251811 AMAQI
20th Oct 20252312 PMAQI
20th Oct 2025271 PMAQI
20th Oct 2025232 PMAQI
20th Oct 2025293 PMAQI
20th Oct 2025194 PMAQI
20th Oct 2025285 PMAQI
20th Oct 2025306 PMAQI
20th Oct 2025307 PMAQI
20th Oct 2025288 PMAQI
20th Oct 2025339 PMAQI
20th Oct 20253810 PMAQI
20th Oct 20254511 PMAQI
21st Oct 20255812 AMAQI
21st Oct 2025611 AMAQI
21st Oct 2025482 AMAQI
21st Oct 2025323 AMAQI
21st Oct 2025424 AMAQI
21st Oct 2025545 AMAQI
21st Oct 2025396 AMAQI
21°C15/28°C
21st Oct 2025307 AMAQI
21st Oct 2025268 AMAQI
21st Oct 2025349 AMAQI
21st Oct 20253510 AMAQI
21st Oct 20252911 AMAQI
21st Oct 20253112 PMAQI
21st Oct 2025301 PMAQI
21st Oct 2025272 PMAQI
21st Oct 2025273 PMAQI
21st Oct 2025314 PMAQI
21st Oct 2025305 PMAQI
21st Oct 2025336 PMAQI
21st Oct 2025337 PMAQI
21st Oct 2025308 PMAQI
21st Oct 2025429 PMAQI
21st Oct 20255610 PMAQI
21st Oct 20256211 PMAQI
22nd Oct 20255812 AMAQI
22nd Oct 2025521 AMAQI
22nd Oct 2025492 AMAQI
22nd Oct 2025503 AMAQI
22nd Oct 2025504 AMAQI
22nd Oct 2025475 AMAQI
22nd Oct 2025486 AMAQI
20°C13/29°C
22nd Oct 2025447 AMAQI
22nd Oct 2025378 AMAQI
22nd Oct 2025439 AMAQI
22nd Oct 20254910 AMAQI
22nd Oct 20254211 AMAQI
22nd Oct 20253712 PMAQI
22nd Oct 2025321 PMAQI
22nd Oct 2025352 PMAQI
22nd Oct 2025403 PMAQI
22nd Oct 2025304 PMAQI
22nd Oct 2025325 PMAQI
22nd Oct 2025426 PMAQI
22nd Oct 2025477 PMAQI
22nd Oct 2025508 PMAQI
22nd Oct 2025479 PMAQI
22nd Oct 20254510 PMAQI
22nd Oct 20255111 PMAQI
23rd Oct 20255312 AMAQI
23rd Oct 2025511 AMAQI
23rd Oct 2025422 AMAQI
23rd Oct 2025363 AMAQI
23rd Oct 2025384 AMAQI
23rd Oct 2025435 AMAQI
23rd Oct 2025436 AMAQI
19°C13/28°C
23rd Oct 2025367 AMAQI
23rd Oct 2025348 AMAQI
23rd Oct 2025339 AMAQI
23rd Oct 20254410 AMAQI
23rd Oct 20254611 AMAQI
23rd Oct 20254612 PMAQI
23rd Oct 2025521 PMAQI
23rd Oct 2025562 PMAQI
23rd Oct 2025573 PMAQI
23rd Oct 2025514 PMAQI
23rd Oct 2025455 PMAQI
23rd Oct 2025476 PMAQI
23rd Oct 2025527 PMAQI
23rd Oct 2025528 PMAQI
23rd Oct 2025539 PMAQI
23rd Oct 20255310 PMAQI
23rd Oct 20255111 PMAQI
24th Oct 20254812 AMAQI
24th Oct 2025481 AMAQI
24th Oct 2025512 AMAQI
24th Oct 2025463 AMAQI
24th Oct 2025474 AMAQI
24th Oct 2025495 AMAQI
24th Oct 2025486 AMAQI
17°C10/26°C
24th Oct 2025447 AMAQI
24th Oct 2025438 AMAQI
24th Oct 2025449 AMAQI
24th Oct 20253710 AMAQI
24th Oct 20253611 AMAQI
24th Oct 20254212 PMAQI
24th Oct 2025511 PMAQI
24th Oct 2025532 PMAQI
24th Oct 2025453 PMAQI
24th Oct 2025364 PMAQI
24th Oct 2025345 PMAQI
24th Oct 2025316 PMAQI
24th Oct 2025317 PMAQI
24th Oct 2025308 PMAQI
24th Oct 2025359 PMAQI
24th Oct 20253810 PMAQI
24th Oct 20253411 PMAQI
25th Oct 20253212 AMAQI
25th Oct 2025321 AMAQI
25th Oct 2025262 AMAQI
25th Oct 2025193 AMAQI
25th Oct 2025254 AMAQI
25th Oct 2025275 AMAQI
25th Oct 2025226 AMAQI
16°C9/25°C
25th Oct 2025237 AMAQI
7 AM25th Oct 2025258 AMAQI
12 PM
6 PM
12 AM
6 AM
--°C/°C
Day time
Avg. Highest Time
12 PM - 1 PM
44AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
4 PM - 6 PM
37AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 PM to 1 PM (Avg. 44), while the lowest AQI was between 4 PM to 6 PM (Avg. 37).
Night time
Avg. Highest Time
12 AM - 1 AM
47AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
7 PM - 8 PM
40AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 1 AM (Avg. 47), while the lowest AQI was between 7 PM to 8 PM (Avg. 40).
2025 Days Vs Air Quality
Winters, California, United States
2025
96%
286
4%
11
Total number of days with different AQI categories in last 298 days in 2025 (67 days remaining)
Good
286 DaysModerate
11 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 96%
Health Risk Level:
Very Low
In 2025, 96% of 298 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
Winters, 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
56AQI
56AQI
2nd January 2025
43AQI
43AQI
3rd January 2025
41AQI
41AQI
4th January 2025
21AQI
21AQI
5th January 2025
29AQI
29AQI
6th January 2025
30AQI
30AQI
7th January 2025
21AQI
21AQI
8th January 2025
23AQI
23AQI
9th January 2025
30AQI
30AQI
10th January 2025
40AQI
40AQI
11th January 2025
31AQI
31AQI
12th January 2025
23AQI
23AQI
13th January 2025
25AQI
25AQI
14th January 2025
28AQI
28AQI
15th January 2025
44AQI
44AQI
16th January 2025
42AQI
42AQI
17th January 2025
45AQI
45AQI
18th January 2025
48AQI
48AQI
19th January 2025
51AQI
51AQI
20th January 2025
35AQI
35AQI
21st January 2025
36AQI
36AQI
22nd January 2025
41AQI
41AQI
23rd January 2025
48AQI
48AQI
24th January 2025
51AQI
51AQI
25th January 2025
44AQI
44AQI
26th January 2025
33AQI
33AQI
27th January 2025
30AQI
30AQI
28th January 2025
46AQI
46AQI
29th January 2025
48AQI
48AQI
30th January 2025
57AQI
57AQI
31st January 2025
45AQI
45AQI
1st February 2025
40AQI
40AQI
2nd February 2025
22AQI
22AQI
3rd February 2025
20AQI
20AQI
4th February 2025
20AQI
20AQI
5th February 2025
23AQI
23AQI
6th February 2025
24AQI
24AQI
7th February 2025
23AQI
23AQI
8th February 2025
22AQI
22AQI
9th February 2025
25AQI
25AQI
10th February 2025
26AQI
26AQI
11th February 2025
27AQI
27AQI
12th February 2025
32AQI
32AQI
13th February 2025
32AQI
32AQI
14th February 2025
25AQI
25AQI
15th February 2025
24AQI
24AQI
16th February 2025
26AQI
26AQI
17th February 2025
21AQI
21AQI
18th February 2025
23AQI
23AQI
19th February 2025
23AQI
23AQI
20th February 2025
22AQI
22AQI
21st February 2025
21AQI
21AQI
22nd February 2025
27AQI
27AQI
23rd February 2025
23AQI
23AQI
24th February 2025
22AQI
22AQI
25th February 2025
21AQI
21AQI
26th February 2025
24AQI
24AQI
27th February 2025
27AQI
27AQI
28th February 2025
30AQI
30AQI
1st March 2025
29AQI
29AQI
2nd March 2025
22AQI
22AQI
3rd March 2025
20AQI
20AQI
4th March 2025
22AQI
22AQI
5th March 2025
22AQI
22AQI
6th March 2025
21AQI
21AQI
7th March 2025
23AQI
23AQI
8th March 2025
24AQI
24AQI
9th March 2025
28AQI
28AQI
10th March 2025
26AQI
26AQI
11th March 2025
27AQI
27AQI
12th March 2025
23AQI
23AQI
13th March 2025
19AQI
19AQI
14th March 2025
17AQI
17AQI
15th March 2025
35AQI
35AQI
16th March 2025
32AQI
32AQI
17th March 2025
15AQI
15AQI
18th March 2025
18AQI
18AQI
19th March 2025
18AQI
18AQI
20th March 2025
15AQI
15AQI
21st March 2025
19AQI
19AQI
22nd March 2025
18AQI
18AQI
23rd March 2025
20AQI
20AQI
24th March 2025
20AQI
20AQI
25th March 2025
27AQI
27AQI
26th March 2025
26AQI
26AQI
27th March 2025
19AQI
19AQI
28th March 2025
21AQI
21AQI
29th March 2025
17AQI
17AQI
30th March 2025
21AQI
21AQI
31st March 2025
21AQI
21AQI
1st April 2025
18AQI
18AQI
2nd April 2025
17AQI
17AQI
3rd April 2025
18AQI
18AQI
4th April 2025
23AQI
23AQI
5th April 2025
23AQI
23AQI
6th April 2025
23AQI
23AQI
7th April 2025
14AQI
14AQI
8th April 2025
15AQI
15AQI
9th April 2025
17AQI
17AQI
10th April 2025
19AQI
19AQI
11th April 2025
19AQI
19AQI
12th April 2025
24AQI
24AQI
13th April 2025
25AQI
25AQI
14th April 2025
25AQI
25AQI
15th April 2025
29AQI
29AQI
16th April 2025
32AQI
32AQI
17th April 2025
24AQI
24AQI
18th April 2025
25AQI
25AQI
19th April 2025
27AQI
27AQI
20th April 2025
26AQI
26AQI
21st April 2025
24AQI
24AQI
22nd April 2025
32AQI
32AQI
23rd April 2025
45AQI
45AQI
24th April 2025
41AQI
41AQI
25th April 2025
22AQI
22AQI
26th April 2025
20AQI
20AQI
27th April 2025
19AQI
19AQI
28th April 2025
21AQI
21AQI
29th April 2025
28AQI
28AQI
30th April 2025
32AQI
32AQI
1st May 2025
36AQI
36AQI
2nd May 2025
34AQI
34AQI
3rd May 2025
22AQI
22AQI
4th May 2025
30AQI
30AQI
5th May 2025
24AQI
24AQI
6th May 2025
27AQI
27AQI
7th May 2025
44AQI
44AQI
8th May 2025
38AQI
38AQI
9th May 2025
31AQI
31AQI
10th May 2025
26AQI
26AQI
11th May 2025
21AQI
21AQI
12th May 2025
17AQI
17AQI
13th May 2025
15AQI
15AQI
14th May 2025
18AQI
18AQI
15th May 2025
23AQI
23AQI
16th May 2025
30AQI
30AQI
17th May 2025
24AQI
24AQI
18th May 2025
24AQI
24AQI
19th May 2025
20AQI
20AQI
20th May 2025
17AQI
17AQI
21st May 2025
26AQI
26AQI
22nd May 2025
27AQI
27AQI
23rd May 2025
20AQI
20AQI
24th May 2025
32AQI
32AQI
25th May 2025
25AQI
25AQI
26th May 2025
16AQI
16AQI
27th May 2025
23AQI
23AQI
28th May 2025
27AQI
27AQI
29th May 2025
24AQI
24AQI
30th May 2025
28AQI
28AQI
31st May 2025
39AQI
39AQI
1st June 2025
45AQI
45AQI
2nd June 2025
52AQI
52AQI
3rd June 2025
39AQI
39AQI
4th June 2025
45AQI
45AQI
5th June 2025
37AQI
37AQI
6th June 2025
27AQI
27AQI
7th June 2025
29AQI
29AQI
8th June 2025
23AQI
23AQI
9th June 2025
25AQI
25AQI
10th June 2025
28AQI
28AQI
11th June 2025
40AQI
40AQI
12th June 2025
48AQI
48AQI
13th June 2025
46AQI
46AQI
14th June 2025
40AQI
40AQI
15th June 2025
38AQI
38AQI
16th June 2025
37AQI
37AQI
17th June 2025
35AQI
35AQI
18th June 2025
30AQI
30AQI
19th June 2025
34AQI
34AQI
20th June 2025
38AQI
38AQI
21st June 2025
28AQI
28AQI
22nd June 2025
23AQI
23AQI
23rd June 2025
24AQI
24AQI
24th June 2025
26AQI
26AQI
25th June 2025
26AQI
26AQI
26th June 2025
30AQI
30AQI
27th June 2025
35AQI
35AQI
28th June 2025
35AQI
35AQI
29th June 2025
31AQI
31AQI
30th June 2025
28AQI
28AQI
1st July 2025
29AQI
29AQI
2nd July 2025
28AQI
28AQI
3rd July 2025
41AQI
41AQI
4th July 2025
31AQI
31AQI
5th July 2025
37AQI
37AQI
6th July 2025
32AQI
32AQI
7th July 2025
24AQI
24AQI
8th July 2025
23AQI
23AQI
9th July 2025
21AQI
21AQI
10th July 2025
30AQI
30AQI
11th July 2025
49AQI
49AQI
12th July 2025
53AQI
53AQI
13th July 2025
40AQI
40AQI
14th July 2025
27AQI
27AQI
15th July 2025
27AQI
27AQI
16th July 2025
27AQI
27AQI
17th July 2025
23AQI
23AQI
18th July 2025
23AQI
23AQI
19th July 2025
25AQI
25AQI
20th July 2025
21AQI
21AQI
21st July 2025
27AQI
27AQI
22nd July 2025
18AQI
18AQI
23rd July 2025
17AQI
17AQI
24th July 2025
17AQI
17AQI
25th July 2025
17AQI
17AQI
26th July 2025
17AQI
17AQI
27th July 2025
17AQI
17AQI
28th July 2025
21AQI
21AQI
29th July 2025
27AQI
27AQI
30th July 2025
28AQI
28AQI
31st July 2025
29AQI
29AQI
1st August 2025
31AQI
31AQI
2nd August 2025
28AQI
28AQI
3rd August 2025
33AQI
33AQI
4th August 2025
36AQI
36AQI
5th August 2025
31AQI
31AQI
6th August 2025
35AQI
35AQI
7th August 2025
31AQI
31AQI
8th August 2025
35AQI
35AQI
9th August 2025
37AQI
37AQI
10th August 2025
33AQI
33AQI
11th August 2025
36AQI
36AQI
12th August 2025
35AQI
35AQI
13th August 2025
33AQI
33AQI
14th August 2025
24AQI
24AQI
15th August 2025
37AQI
37AQI
16th August 2025
22AQI
22AQI
17th August 2025
17AQI
17AQI
18th August 2025
20AQI
20AQI
19th August 2025
23AQI
23AQI
20th August 2025
29AQI
29AQI
21st August 2025
35AQI
35AQI
22nd August 2025
48AQI
48AQI
23rd August 2025
43AQI
43AQI
24th August 2025
37AQI
37AQI
25th August 2025
35AQI
35AQI
26th August 2025
39AQI
39AQI
27th August 2025
42AQI
42AQI
28th August 2025
39AQI
39AQI
29th August 2025
32AQI
32AQI
30th August 2025
32AQI
32AQI
31st August 2025
34AQI
34AQI
1st September 2025
29AQI
29AQI
2nd September 2025
43AQI
43AQI
3rd September 2025
36AQI
36AQI
4th September 2025
31AQI
31AQI
5th September 2025
31AQI
31AQI
6th September 2025
34AQI
34AQI
7th September 2025
30AQI
30AQI
8th September 2025
24AQI
24AQI
9th September 2025
18AQI
18AQI
10th September 2025
19AQI
19AQI
11th September 2025
26AQI
26AQI
12th September 2025
33AQI
33AQI
13th September 2025
37AQI
37AQI
14th September 2025
29AQI
29AQI
15th September 2025
27AQI
27AQI
16th September 2025
37AQI
37AQI
17th September 2025
41AQI
41AQI
18th September 2025
41AQI
41AQI
19th September 2025
40AQI
40AQI
20th September 2025
48AQI
48AQI
21st September 2025
40AQI
40AQI
22nd September 2025
36AQI
36AQI
23rd September 2025
38AQI
38AQI
24th September 2025
46AQI
46AQI
25th September 2025
39AQI
39AQI
26th September 2025
45AQI
45AQI
27th September 2025
55AQI
55AQI
28th September 2025
40AQI
40AQI
29th September 2025
35AQI
35AQI
30th September 2025
27AQI
27AQI
1st October 2025
25AQI
25AQI
2nd October 2025
33AQI
33AQI
3rd October 2025
37AQI
37AQI
4th October 2025
43AQI
43AQI
5th October 2025
45AQI
45AQI
6th October 2025
50AQI
50AQI
7th October 2025
42AQI
42AQI
8th October 2025
56AQI
56AQI
9th October 2025
50AQI
50AQI
10th October 2025
44AQI
44AQI
11th October 2025
34AQI
34AQI
12th October 2025
47AQI
47AQI
13th October 2025
43AQI
43AQI
14th October 2025
33AQI
33AQI
15th October 2025
31AQI
31AQI
16th October 2025
52AQI
52AQI
17th October 2025
49AQI
49AQI
18th October 2025
56AQI
56AQI
19th October 2025
51AQI
51AQI
20th October 2025
38AQI
38AQI
21st October 2025
40AQI
40AQI
22nd October 2025
46AQI
46AQI
23rd October 2025
47AQI
47AQI
24th October 2025
43AQI
43AQI
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
38AQI
25AQI
22AQI
24AQI
26AQI
34AQI
27AQI
33AQI
35AQI
43AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202531AQI
27
4
28
31
30
31
29
1
30
1
31
29
1
20
4
286
11
Highest AQI recorded in
October43AQI
Lowest AQI recorded in
March22AQI
202435AQI
1
15
1
2
12
29
29
2
31
28
28
3
25
5
23
8
208
34
Highest AQI recorded in
March67AQI
Lowest AQI recorded in
May21AQI
202345AQI
2
1
21
10
23
11
Highest AQI recorded in
November52AQI
Lowest AQI recorded in
December45AQI
202298AQI
1
1
7
7
1
1
7
8
1
Highest AQI recorded in
September100AQI
Lowest AQI recorded in
August84AQI
202187AQI
1
1
Highest AQI recorded in
September87AQI
Lowest AQI recorded in
September87AQI
202093AQI
1
3
7
12
7
3
1
1
1
2
1
9
14
10
5
1
Highest AQI recorded in
August114AQI
Lowest AQI recorded in
November17AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2022(Avg.)
98AQILeast Polluted Year Recorded
2025(Avg.)
31AQIWinters's annual 2025 AQI (31) shows an average percentage change of -49.1% (improved AQI) compared to previous years: 2020 (93), 2021 (87), 2022 (98), 2023 (45), 2024 (35).
