Vacaville, 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
Vacaville, California, United States
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
25th Nov 2022
71AQILowest AQI recorded on
5th Nov 2023
5AQISame Day Analysis (18th November ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 19 of Good air quality, showing improvement over 2024, 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 18th Nov - 19th Nov 2025
Vacaville, California, United States
AQI
Day
Night
.
6 AM18th Nov 2025
5 PM
5 AM19th Nov 2025
Day time
Avg. Highest Time
8AM18th Nov
41AQI
Avg. Lowest Time
4PM18th Nov
11AQI
Night time
Avg. Highest Time
4AM19th Nov
28AQI
Avg. Lowest Time
11PM18th Nov
16AQI
In the last 24 hours,
Vacaville's AQI reached its highest point of 41 at 8 AM during the Day, while the lowest point, 11, was recorded at 4 PM during the Day between 18th Nov and 19th Nov 2025.
Day & Night AQI Trend : Oct - Nov 2025
Vacaville, California, United States
OctNov
20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th
Day
Night
20th Oct 2025576 AMAQI
20th Oct 2025587 AMAQI
20th Oct 2025368 AMAQI
20th Oct 2025169 AMAQI
20th Oct 20253610 AMAQI
20th Oct 20253611 AMAQI
20th Oct 20255612 PMAQI
20th Oct 2025561 PMAQI
20th Oct 2025352 PMAQI
20th Oct 2025293 PMAQI
20th Oct 2025184 PMAQI
20th Oct 2025375 PMAQI
20th Oct 2025446 PMAQI
20th Oct 2025277 PMAQI
20th Oct 2025368 PMAQI
20th Oct 2025569 PMAQI
20th Oct 20255710 PMAQI
20th Oct 20255611 PMAQI
21st Oct 20255612 AMAQI
21st Oct 2025581 AMAQI
21st Oct 2025612 AMAQI
21st Oct 2025553 AMAQI
21st Oct 2025544 AMAQI
21st Oct 2025575 AMAQI
21°C15/29°C
21st Oct 2025436 AMAQI
21st Oct 2025177 AMAQI
21st Oct 2025158 AMAQI
21st Oct 2025189 AMAQI
21st Oct 20252010 AMAQI
21st Oct 20252111 AMAQI
21st Oct 20252712 PMAQI
21st Oct 2025311 PMAQI
21st Oct 2025242 PMAQI
21st Oct 2025253 PMAQI
21st Oct 2025294 PMAQI
21st Oct 2025305 PMAQI
21st Oct 2025366 PMAQI
21st Oct 2025387 PMAQI
21st Oct 2025348 PMAQI
21st Oct 2025399 PMAQI
21st Oct 20254410 PMAQI
21st Oct 20254911 PMAQI
22nd Oct 20254712 AMAQI
22nd Oct 2025491 AMAQI
22nd Oct 2025502 AMAQI
22nd Oct 2025463 AMAQI
22nd Oct 2025464 AMAQI
22nd Oct 2025395 AMAQI
19°C10/30°C
22nd Oct 2025446 AMAQI
22nd Oct 2025377 AMAQI
22nd Oct 2025228 AMAQI
22nd Oct 2025229 AMAQI
22nd Oct 20252410 AMAQI
22nd Oct 20253011 AMAQI
22nd Oct 20252412 PMAQI
22nd Oct 2025161 PMAQI
22nd Oct 2025172 PMAQI
22nd Oct 2025263 PMAQI
22nd Oct 2025284 PMAQI
22nd Oct 2025335 PMAQI
22nd Oct 2025496 PMAQI
22nd Oct 2025477 PMAQI
22nd Oct 2025398 PMAQI
22nd Oct 2025369 PMAQI
22nd Oct 20253310 PMAQI
22nd Oct 20253611 PMAQI
23rd Oct 20254712 AMAQI
23rd Oct 2025491 AMAQI
23rd Oct 2025342 AMAQI
23rd Oct 2025313 AMAQI
23rd Oct 2025374 AMAQI
23rd Oct 2025355 AMAQI
18°C14/25°C
23rd Oct 2025406 AMAQI
23rd Oct 2025357 AMAQI
23rd Oct 2025308 AMAQI
23rd Oct 2025289 AMAQI
23rd Oct 20253510 AMAQI
23rd Oct 20252811 AMAQI
23rd Oct 20254012 PMAQI
23rd Oct 2025531 PMAQI
23rd Oct 2025562 PMAQI
23rd Oct 2025583 PMAQI
23rd Oct 2025514 PMAQI
23rd Oct 2025385 PMAQI
23rd Oct 2025426 PMAQI
23rd Oct 2025477 PMAQI
23rd Oct 2025448 PMAQI
23rd Oct 2025389 PMAQI
23rd Oct 20253310 PMAQI
23rd Oct 20253011 PMAQI
24th Oct 20252612 AMAQI
24th Oct 2025291 AMAQI
24th Oct 2025372 AMAQI
24th Oct 2025383 AMAQI
24th Oct 2025424 AMAQI
24th Oct 2025435 AMAQI
17°C10/23°C
24th Oct 2025446 AMAQI
24th Oct 2025447 AMAQI
24th Oct 2025308 AMAQI
24th Oct 2025259 AMAQI
24th Oct 20253610 AMAQI
24th Oct 20254711 AMAQI
24th Oct 20255012 PMAQI
24th Oct 2025561 PMAQI
24th Oct 2025562 PMAQI
24th Oct 2025443 PMAQI
24th Oct 2025304 PMAQI
24th Oct 2025245 PMAQI
24th Oct 2025216 PMAQI
24th Oct 2025367 PMAQI
24th Oct 2025458 PMAQI
24th Oct 2025409 PMAQI
24th Oct 20253910 PMAQI
24th Oct 20254111 PMAQI
25th Oct 20253712 AMAQI
25th Oct 2025281 AMAQI
25th Oct 2025232 AMAQI
25th Oct 2025203 AMAQI
25th Oct 2025174 AMAQI
25th Oct 2025155 AMAQI
16°C10/25°C
25th Oct 2025206 AMAQI
25th Oct 2025327 AMAQI
25th Oct 2025308 AMAQI
25th Oct 2025259 AMAQI
25th Oct 20252010 AMAQI
25th Oct 20251411 AMAQI
25th Oct 20251712 PMAQI
25th Oct 2025161 PMAQI
25th Oct 2025262 PMAQI
25th Oct 2025383 PMAQI
25th Oct 2025204 PMAQI
25th Oct 2025145 PMAQI
25th Oct 2025176 PMAQI
25th Oct 2025207 PMAQI
25th Oct 2025178 PMAQI
25th Oct 2025219 PMAQI
25th Oct 20252510 PMAQI
25th Oct 20251711 PMAQI
26th Oct 20253112 AMAQI
26th Oct 2025401 AMAQI
26th Oct 2025302 AMAQI
26th Oct 2025253 AMAQI
26th Oct 2025254 AMAQI
26th Oct 2025285 AMAQI
16°C13/23°C
26th Oct 2025316 AMAQI
26th Oct 2025377 AMAQI
26th Oct 2025368 AMAQI
26th Oct 2025259 AMAQI
26th Oct 20251710 AMAQI
26th Oct 20252211 AMAQI
26th Oct 20253012 PMAQI
26th Oct 2025361 PMAQI
26th Oct 2025422 PMAQI
26th Oct 2025363 PMAQI
26th Oct 2025234 PMAQI
26th Oct 2025235 PMAQI
26th Oct 2025216 PMAQI
26th Oct 2025207 PMAQI
26th Oct 2025288 PMAQI
26th Oct 2025309 PMAQI
26th Oct 20253810 PMAQI
26th Oct 20254611 PMAQI
27th Oct 20254312 AMAQI
27th Oct 2025341 AMAQI
27th Oct 2025342 AMAQI
27th Oct 2025473 AMAQI
27th Oct 2025524 AMAQI
27th Oct 2025405 AMAQI
16°C13/20°C
27th Oct 2025236 AMAQI
27th Oct 2025157 AMAQI
27th Oct 2025198 AMAQI
27th Oct 2025209 AMAQI
27th Oct 20252310 AMAQI
27th Oct 20253411 AMAQI
27th Oct 20254212 PMAQI
27th Oct 2025461 PMAQI
27th Oct 2025352 PMAQI
27th Oct 2025193 PMAQI
27th Oct 2025284 PMAQI
27th Oct 2025365 PMAQI
27th Oct 2025266 PMAQI
27th Oct 2025257 PMAQI
27th Oct 2025248 PMAQI
27th Oct 2025219 PMAQI
27th Oct 20252210 PMAQI
27th Oct 20252511 PMAQI
28th Oct 20252412 AMAQI
28th Oct 2025191 AMAQI
28th Oct 2025172 AMAQI
28th Oct 2025163 AMAQI
28th Oct 2025154 AMAQI
28th Oct 2025145 AMAQI
16°C12/24°C
28th Oct 2025376 AMAQI
28th Oct 2025427 AMAQI
28th Oct 2025228 AMAQI
28th Oct 2025229 AMAQI
28th Oct 20254010 AMAQI
28th Oct 20256511 AMAQI
28th Oct 20257912 PMAQI
28th Oct 2025681 PMAQI
28th Oct 2025392 PMAQI
28th Oct 2025223 PMAQI
28th Oct 2025204 PMAQI
28th Oct 2025255 PMAQI
28th Oct 2025256 PMAQI
28th Oct 2025217 PMAQI
28th Oct 2025298 PMAQI
28th Oct 2025319 PMAQI
28th Oct 20252510 PMAQI
28th Oct 20253611 PMAQI
29th Oct 20254212 AMAQI
29th Oct 2025391 AMAQI
29th Oct 2025392 AMAQI
29th Oct 2025393 AMAQI
29th Oct 2025364 AMAQI
29th Oct 2025385 AMAQI
16°C8/26°C
29th Oct 2025356 AMAQI
29th Oct 2025227 AMAQI
29th Oct 2025228 AMAQI
29th Oct 2025229 AMAQI
29th Oct 20253810 AMAQI
29th Oct 20255211 AMAQI
29th Oct 20255312 PMAQI
29th Oct 2025561 PMAQI
29th Oct 2025482 PMAQI
29th Oct 2025393 PMAQI
29th Oct 2025304 PMAQI
29th Oct 2025285 PMAQI
29th Oct 2025286 PMAQI
29th Oct 2025267 PMAQI
29th Oct 2025298 PMAQI
29th Oct 2025279 PMAQI
29th Oct 20254910 PMAQI
29th Oct 20255011 PMAQI
30th Oct 20253512 AMAQI
30th Oct 2025441 AMAQI
30th Oct 2025562 AMAQI
30th Oct 2025573 AMAQI
30th Oct 2025444 AMAQI
30th Oct 2025345 AMAQI
20°C12/30°C
30th Oct 2025236 AMAQI
30th Oct 2025307 AMAQI
30th Oct 2025428 AMAQI
30th Oct 2025369 AMAQI
30th Oct 20252710 AMAQI
30th Oct 20253911 AMAQI
30th Oct 20254812 PMAQI
30th Oct 2025421 PMAQI
30th Oct 2025422 PMAQI
30th Oct 2025343 PMAQI
30th Oct 2025244 PMAQI
30th Oct 2025415 PMAQI
30th Oct 2025626 PMAQI
30th Oct 2025637 PMAQI
30th Oct 2025488 PMAQI
30th Oct 2025339 PMAQI
30th Oct 20253710 PMAQI
30th Oct 20255211 PMAQI
31st Oct 20255712 AMAQI
31st Oct 2025471 AMAQI
31st Oct 2025392 AMAQI
31st Oct 2025363 AMAQI
31st Oct 2025304 AMAQI
31st Oct 2025345 AMAQI
15°C10/20°C
31st Oct 2025346 AMAQI
31st Oct 2025347 AMAQI
31st Oct 2025388 AMAQI
31st Oct 2025339 AMAQI
31st Oct 20253110 AMAQI
31st Oct 20253611 AMAQI
31st Oct 20254412 PMAQI
31st Oct 2025501 PMAQI
31st Oct 2025472 PMAQI
31st Oct 2025343 PMAQI
31st Oct 2025344 PMAQI
31st Oct 2025345 PMAQI
31st Oct 2025296 PMAQI
31st Oct 2025317 PMAQI
31st Oct 2025268 PMAQI
31st Oct 2025189 PMAQI
31st Oct 20253010 PMAQI
31st Oct 20253611 PMAQI
1st Nov 20252512 AMAQI
1st Nov 2025391 AMAQI
1st Nov 2025582 AMAQI
1st Nov 2025493 AMAQI
1st Nov 2025394 AMAQI
1st Nov 2025305 AMAQI
18°C11/29°C
1st Nov 2025216 AMAQI
1st Nov 2025227 AMAQI
1st Nov 2025368 AMAQI
1st Nov 2025409 AMAQI
1st Nov 20252810 AMAQI
1st Nov 20252811 AMAQI
1st Nov 20253912 PMAQI
1st Nov 2025601 PMAQI
1st Nov 2025612 PMAQI
1st Nov 2025523 PMAQI
1st Nov 2025474 PMAQI
1st Nov 2025475 PMAQI
1st Nov 2025506 PMAQI
1st Nov 2025367 PMAQI
1st Nov 2025238 PMAQI
1st Nov 2025289 PMAQI
1st Nov 20253210 PMAQI
1st Nov 20253711 PMAQI
2nd Nov 20255012 AMAQI
2nd Nov 2025561 AMAQI
2nd Nov 2025532 AMAQI
2nd Nov 2025503 AMAQI
2nd Nov 2025534 AMAQI
2nd Nov 2025465 AMAQI
18°C8/28°C
2nd Nov 2025286 AMAQI
2nd Nov 2025307 AMAQI
2nd Nov 2025448 AMAQI
2nd Nov 2025409 AMAQI
2nd Nov 20252210 AMAQI
2nd Nov 20253511 AMAQI
2nd Nov 20255712 PMAQI
2nd Nov 2025601 PMAQI
2nd Nov 2025562 PMAQI
2nd Nov 2025553 PMAQI
2nd Nov 2025494 PMAQI
2nd Nov 2025475 PMAQI
2nd Nov 2025476 PMAQI
2nd Nov 2025337 PMAQI
2nd Nov 2025388 PMAQI
2nd Nov 2025519 PMAQI
2nd Nov 20255210 PMAQI
2nd Nov 20254711 PMAQI
3rd Nov 20253912 AMAQI
3rd Nov 2025331 AMAQI
3rd Nov 2025352 AMAQI
3rd Nov 2025393 AMAQI
3rd Nov 2025314 AMAQI
3rd Nov 2025225 AMAQI
19°C11/28°C
3rd Nov 2025206 AMAQI
3rd Nov 2025197 AMAQI
3rd Nov 2025258 AMAQI
3rd Nov 2025239 AMAQI
3rd Nov 20253410 AMAQI
3rd Nov 20254011 AMAQI
3rd Nov 20252012 PMAQI
3rd Nov 2025251 PMAQI
3rd Nov 2025332 PMAQI
3rd Nov 2025283 PMAQI
3rd Nov 2025204 PMAQI
3rd Nov 2025195 PMAQI
3rd Nov 2025226 PMAQI
3rd Nov 2025227 PMAQI
3rd Nov 2025208 PMAQI
3rd Nov 2025279 PMAQI
3rd Nov 20253010 PMAQI
3rd Nov 20252111 PMAQI
4th Nov 20253312 AMAQI
4th Nov 2025341 AMAQI
4th Nov 2025382 AMAQI
4th Nov 2025403 AMAQI
4th Nov 2025374 AMAQI
4th Nov 2025265 AMAQI
18°C12/26°C
4th Nov 2025306 AMAQI
4th Nov 2025407 AMAQI
4th Nov 2025238 AMAQI
4th Nov 2025289 AMAQI
4th Nov 20253110 AMAQI
4th Nov 20252511 AMAQI
4th Nov 20252512 PMAQI
4th Nov 2025271 PMAQI
4th Nov 2025362 PMAQI
4th Nov 2025373 PMAQI
4th Nov 2025234 PMAQI
4th Nov 2025135 PMAQI
4th Nov 2025156 PMAQI
4th Nov 2025167 PMAQI
4th Nov 2025198 PMAQI
4th Nov 2025209 PMAQI
4th Nov 20252510 PMAQI
4th Nov 20252811 PMAQI
5th Nov 20251812 AMAQI
5th Nov 2025261 AMAQI
5th Nov 2025332 AMAQI
5th Nov 2025213 AMAQI
5th Nov 2025164 AMAQI
5th Nov 2025205 AMAQI
16°C12/23°C
5th Nov 2025226 AMAQI
5th Nov 2025257 AMAQI
5th Nov 2025218 AMAQI
5th Nov 2025249 AMAQI
5th Nov 20251710 AMAQI
5th Nov 20251411 AMAQI
5th Nov 20251712 PMAQI
5th Nov 2025221 PMAQI
5th Nov 2025262 PMAQI
5th Nov 2025333 PMAQI
5th Nov 2025304 PMAQI
5th Nov 2025225 PMAQI
5th Nov 2025226 PMAQI
5th Nov 2025317 PMAQI
5th Nov 2025408 PMAQI
5th Nov 2025279 PMAQI
5th Nov 20251610 PMAQI
5th Nov 20253111 PMAQI
6th Nov 20253612 AMAQI
6th Nov 2025221 AMAQI
6th Nov 2025142 AMAQI
6th Nov 2025283 AMAQI
6th Nov 2025364 AMAQI
6th Nov 2025305 AMAQI
15°C14/18°C
6th Nov 2025276 AMAQI
6th Nov 2025277 AMAQI
6th Nov 2025218 AMAQI
6th Nov 2025199 AMAQI
6th Nov 20253710 AMAQI
6th Nov 20253811 AMAQI
6th Nov 20253612 PMAQI
6th Nov 2025421 PMAQI
6th Nov 2025392 PMAQI
6th Nov 2025393 PMAQI
6th Nov 2025394 PMAQI
6th Nov 2025395 PMAQI
6th Nov 2025366 PMAQI
6th Nov 2025317 PMAQI
6th Nov 2025288 PMAQI
6th Nov 2025529 PMAQI
6th Nov 20256610 PMAQI
6th Nov 20254211 PMAQI
7th Nov 20253112 AMAQI
7th Nov 2025261 AMAQI
7th Nov 2025212 AMAQI
7th Nov 2025293 AMAQI
7th Nov 2025334 AMAQI
7th Nov 2025175 AMAQI
16°C12/20°C
7th Nov 2025226 AMAQI
7th Nov 2025297 AMAQI
7th Nov 2025198 AMAQI
7th Nov 2025229 AMAQI
7th Nov 20252810 AMAQI
7th Nov 20253211 AMAQI
7th Nov 20254412 PMAQI
7th Nov 2025421 PMAQI
7th Nov 2025282 PMAQI
7th Nov 2025173 PMAQI
7th Nov 2025174 PMAQI
7th Nov 2025155 PMAQI
7th Nov 2025186 PMAQI
7th Nov 2025197 PMAQI
7th Nov 2025178 PMAQI
7th Nov 2025309 PMAQI
7th Nov 20253510 PMAQI
7th Nov 20253011 PMAQI
8th Nov 20253312 AMAQI
8th Nov 2025291 AMAQI
8th Nov 2025192 AMAQI
8th Nov 2025163 AMAQI
8th Nov 2025194 AMAQI
8th Nov 2025215 AMAQI
16°C12/21°C
8th Nov 2025176 AMAQI
8th Nov 2025247 AMAQI
8th Nov 2025368 AMAQI
8th Nov 2025329 AMAQI
8th Nov 20251710 AMAQI
8th Nov 20256311 AMAQI
8th Nov 20258712 PMAQI
8th Nov 2025381 PMAQI
8th Nov 2025332 PMAQI
8th Nov 2025203 PMAQI
8th Nov 2025224 PMAQI
8th Nov 2025235 PMAQI
8th Nov 2025196 PMAQI
8th Nov 2025227 PMAQI
8th Nov 2025278 PMAQI
8th Nov 2025469 PMAQI
8th Nov 20255710 PMAQI
8th Nov 20255411 PMAQI
9th Nov 20255512 AMAQI
9th Nov 2025561 AMAQI
9th Nov 2025582 AMAQI
9th Nov 2025563 AMAQI
9th Nov 2025544 AMAQI
9th Nov 2025505 AMAQI
17°C13/25°C
9th Nov 2025476 AMAQI
9th Nov 2025487 AMAQI
9th Nov 2025498 AMAQI
9th Nov 2025379 AMAQI
9th Nov 20252510 AMAQI
9th Nov 20253011 AMAQI
9th Nov 20254412 PMAQI
9th Nov 2025541 PMAQI
9th Nov 2025452 PMAQI
9th Nov 2025383 PMAQI
9th Nov 2025324 PMAQI
9th Nov 2025385 PMAQI
9th Nov 2025456 PMAQI
9th Nov 2025337 PMAQI
9th Nov 2025378 PMAQI
9th Nov 2025529 PMAQI
9th Nov 20255810 PMAQI
9th Nov 20255211 PMAQI
10th Nov 20254512 AMAQI
10th Nov 2025311 AMAQI
10th Nov 2025222 AMAQI
10th Nov 2025363 AMAQI
10th Nov 2025474 AMAQI
10th Nov 2025445 AMAQI
18°C12/25°C
10th Nov 2025476 AMAQI
10th Nov 2025477 AMAQI
10th Nov 2025408 AMAQI
10th Nov 2025359 AMAQI
10th Nov 20253710 AMAQI
10th Nov 20252811 AMAQI
10th Nov 20253612 PMAQI
10th Nov 2025381 PMAQI
10th Nov 2025432 PMAQI
10th Nov 2025403 PMAQI
10th Nov 2025444 PMAQI
10th Nov 2025425 PMAQI
10th Nov 2025226 PMAQI
10th Nov 2025387 PMAQI
10th Nov 2025568 PMAQI
10th Nov 2025569 PMAQI
10th Nov 20255610 PMAQI
10th Nov 20254411 PMAQI
11th Nov 20253812 AMAQI
11th Nov 2025361 AMAQI
11th Nov 2025292 AMAQI
11th Nov 2025343 AMAQI
11th Nov 2025354 AMAQI
11th Nov 2025305 AMAQI
19°C13/28°C
11th Nov 2025256 AMAQI
11th Nov 2025227 AMAQI
11th Nov 2025238 AMAQI
11th Nov 2025359 AMAQI
11th Nov 20255610 AMAQI
11th Nov 20255911 AMAQI
11th Nov 20255312 PMAQI
11th Nov 2025441 PMAQI
11th Nov 2025462 PMAQI
11th Nov 2025563 PMAQI
11th Nov 2025494 PMAQI
11th Nov 2025495 PMAQI
11th Nov 2025606 PMAQI
11th Nov 2025577 PMAQI
11th Nov 2025558 PMAQI
11th Nov 2025599 PMAQI
11th Nov 20256210 PMAQI
11th Nov 20255911 PMAQI
12th Nov 20255312 AMAQI
12th Nov 2025511 AMAQI
12th Nov 2025522 AMAQI
12th Nov 2025373 AMAQI
12th Nov 2025244 AMAQI
12th Nov 2025185 AMAQI
17°C12/25°C
12th Nov 2025226 AMAQI
12th Nov 2025387 AMAQI
12th Nov 2025408 AMAQI
12th Nov 2025239 AMAQI
12th Nov 20252310 AMAQI
12th Nov 20252511 AMAQI
12th Nov 20252012 PMAQI
12th Nov 2025201 PMAQI
12th Nov 2025252 PMAQI
12th Nov 2025213 PMAQI
12th Nov 2025134 PMAQI
12th Nov 2025155 PMAQI
12th Nov 2025276 PMAQI
12th Nov 2025447 PMAQI
12th Nov 2025408 PMAQI
12th Nov 2025229 PMAQI
12th Nov 20253010 PMAQI
12th Nov 20254611 PMAQI
13th Nov 20255412 AMAQI
13th Nov 2025491 AMAQI
13th Nov 2025372 AMAQI
13th Nov 2025383 AMAQI
13th Nov 2025374 AMAQI
13th Nov 2025195 AMAQI
16°C13/21°C
13th Nov 2025216 AMAQI
13th Nov 2025237 AMAQI
13th Nov 2025338 AMAQI
13th Nov 2025399 AMAQI
13th Nov 20253610 AMAQI
13th Nov 20252511 AMAQI
13th Nov 20252012 PMAQI
13th Nov 2025251 PMAQI
13th Nov 2025252 PMAQI
13th Nov 2025223 PMAQI
13th Nov 2025174 PMAQI
13th Nov 2025295 PMAQI
13th Nov 2025366 PMAQI
13th Nov 2025237 PMAQI
13th Nov 2025148 PMAQI
13th Nov 2025179 PMAQI
13th Nov 20251710 PMAQI
13th Nov 20251711 PMAQI
14th Nov 20252212 AMAQI
14th Nov 2025301 AMAQI
14th Nov 2025332 AMAQI
14th Nov 2025333 AMAQI
14th Nov 2025264 AMAQI
14th Nov 2025195 AMAQI
15°C13/18°C
14th Nov 2025206 AMAQI
14th Nov 2025197 AMAQI
14th Nov 2025228 AMAQI
14th Nov 2025229 AMAQI
14th Nov 20252510 AMAQI
14th Nov 20252011 AMAQI
14th Nov 20253012 PMAQI
14th Nov 2025421 PMAQI
14th Nov 2025252 PMAQI
14th Nov 2025153 PMAQI
14th Nov 2025154 PMAQI
14th Nov 2025195 PMAQI
14th Nov 2025256 PMAQI
14th Nov 2025217 PMAQI
14th Nov 2025248 PMAQI
14th Nov 2025369 PMAQI
14th Nov 20253310 PMAQI
14th Nov 20253611 PMAQI
15th Nov 20253612 AMAQI
15th Nov 2025311 AMAQI
15th Nov 2025232 AMAQI
15th Nov 2025173 AMAQI
15th Nov 2025174 AMAQI
15th Nov 2025195 AMAQI
14°C11/17°C
15th Nov 2025256 AMAQI
15th Nov 2025267 AMAQI
15th Nov 2025308 AMAQI
15th Nov 2025319 AMAQI
15th Nov 20251810 AMAQI
15th Nov 20251211 AMAQI
15th Nov 20252312 PMAQI
15th Nov 2025281 PMAQI
15th Nov 2025222 PMAQI
15th Nov 2025253 PMAQI
15th Nov 2025344 PMAQI
15th Nov 2025285 PMAQI
15th Nov 2025176 PMAQI
15th Nov 2025177 PMAQI
15th Nov 2025168 PMAQI
15th Nov 2025219 PMAQI
15th Nov 20253110 PMAQI
15th Nov 20253811 PMAQI
16th Nov 20254112 AMAQI
16th Nov 2025331 AMAQI
16th Nov 2025302 AMAQI
16th Nov 2025393 AMAQI
16th Nov 2025344 AMAQI
16th Nov 2025285 AMAQI
15°C11/22°C
16th Nov 2025236 AMAQI
16th Nov 2025227 AMAQI
16th Nov 2025268 AMAQI
16th Nov 2025269 AMAQI
16th Nov 20252210 AMAQI
16th Nov 20251711 AMAQI
16th Nov 20252012 PMAQI
16th Nov 2025171 PMAQI
16th Nov 2025142 PMAQI
16th Nov 2025113 PMAQI
16th Nov 2025114 PMAQI
16th Nov 2025175 PMAQI
16th Nov 2025246 PMAQI
16th Nov 2025247 PMAQI
16th Nov 2025238 PMAQI
16th Nov 2025189 PMAQI
16th Nov 20251110 PMAQI
16th Nov 20251411 PMAQI
17th Nov 20251912 AMAQI
17th Nov 2025251 AMAQI
17th Nov 2025252 AMAQI
17th Nov 2025223 AMAQI
17th Nov 2025204 AMAQI
17th Nov 2025155 AMAQI
14°C13/17°C
17th Nov 2025206 AMAQI
17th Nov 2025327 AMAQI
17th Nov 2025288 AMAQI
17th Nov 2025319 AMAQI
17th Nov 20252910 AMAQI
17th Nov 20252011 AMAQI
17th Nov 20251912 PMAQI
17th Nov 2025171 PMAQI
17th Nov 2025352 PMAQI
17th Nov 2025403 PMAQI
17th Nov 2025284 PMAQI
17th Nov 2025505 PMAQI
17th Nov 2025586 PMAQI
17th Nov 2025267 PMAQI
17th Nov 2025148 PMAQI
17th Nov 2025179 PMAQI
17th Nov 20251710 PMAQI
17th Nov 20252211 PMAQI
18th Nov 20252312 AMAQI
18th Nov 2025141 AMAQI
18th Nov 2025112 AMAQI
18th Nov 2025113 AMAQI
18th Nov 2025114 AMAQI
18th Nov 2025115 AMAQI
12°C10/13°C
18th Nov 2025206 AMAQI
18th Nov 2025307 AMAQI
18th Nov 2025418 AMAQI
18th Nov 2025299 AMAQI
18th Nov 20251910 AMAQI
18th Nov 20252211 AMAQI
18th Nov 20252012 PMAQI
18th Nov 2025201 PMAQI
18th Nov 2025272 PMAQI
18th Nov 2025233 PMAQI
18th Nov 2025114 PMAQI
18th Nov 2025195 PMAQI
18th Nov 2025206 PMAQI
18th Nov 2025167 PMAQI
18th Nov 2025228 PMAQI
18th Nov 2025199 PMAQI
18th Nov 20251610 PMAQI
18th Nov 20251611 PMAQI
19th Nov 20251812 AMAQI
19th Nov 2025191 AMAQI
19th Nov 2025192 AMAQI
19th Nov 2025223 AMAQI
19th Nov 2025284 AMAQI
19th Nov 2025235 AMAQI
12°C8/16°C
19th Nov 2025226 AMAQI
6 AM19th Nov 2025357 AMAQI
19th Nov 2025428 AMAQI
19th Nov 2025299 AMAQI
19th Nov 20251910 AMAQI
19th Nov 20252711 AMAQI
11 AM19th Nov 20253312 PMAQI
19th Nov 2025391 PMAQI
19th Nov 2025452 PMAQI
5 PM
11 PM
5 AM
--°C/°C
Day time
Avg. Highest Time
12 PM - 1 PM
38AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
9 AM - 10 AM
28AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 PM to 1 PM (Avg. 38), while the lowest AQI was between 9 AM to 10 AM (Avg. 28).
Night time
Avg. Highest Time
12 AM - 4 AM
35AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
5 AM
30AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 4 AM (Avg. 35), while the lowest AQI was between 5 AM to 5 AM (Avg. 30).
2025 Days Vs Air Quality
Vacaville, California, United States
2025
96%
310
4%
12
Total number of days with different AQI categories in last 323 days in 2025 (42 days remaining)
Good
310 DaysModerate
12 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 323 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
Vacaville, 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
54AQI
54AQI
2nd January 2025
38AQI
38AQI
3rd January 2025
40AQI
40AQI
4th January 2025
21AQI
21AQI
5th January 2025
27AQI
27AQI
6th January 2025
32AQI
32AQI
7th January 2025
20AQI
20AQI
8th January 2025
23AQI
23AQI
9th January 2025
29AQI
29AQI
10th January 2025
39AQI
39AQI
11th January 2025
29AQI
29AQI
12th January 2025
22AQI
22AQI
13th January 2025
25AQI
25AQI
14th January 2025
26AQI
26AQI
15th January 2025
42AQI
42AQI
16th January 2025
43AQI
43AQI
17th January 2025
46AQI
46AQI
18th January 2025
46AQI
46AQI
19th January 2025
50AQI
50AQI
20th January 2025
33AQI
33AQI
21st January 2025
33AQI
33AQI
22nd January 2025
41AQI
41AQI
23rd January 2025
46AQI
46AQI
24th January 2025
51AQI
51AQI
25th January 2025
41AQI
41AQI
26th January 2025
29AQI
29AQI
27th January 2025
25AQI
25AQI
28th January 2025
40AQI
40AQI
29th January 2025
42AQI
42AQI
30th January 2025
48AQI
48AQI
31st January 2025
41AQI
41AQI
1st February 2025
46AQI
46AQI
2nd February 2025
21AQI
21AQI
3rd February 2025
20AQI
20AQI
4th February 2025
19AQI
19AQI
5th February 2025
23AQI
23AQI
6th February 2025
23AQI
23AQI
7th February 2025
31AQI
31AQI
8th February 2025
22AQI
22AQI
9th February 2025
24AQI
24AQI
10th February 2025
24AQI
24AQI
11th February 2025
26AQI
26AQI
12th February 2025
28AQI
28AQI
13th February 2025
26AQI
26AQI
14th February 2025
22AQI
22AQI
15th February 2025
22AQI
22AQI
16th February 2025
26AQI
26AQI
17th February 2025
20AQI
20AQI
18th February 2025
22AQI
22AQI
19th February 2025
23AQI
23AQI
20th February 2025
20AQI
20AQI
21st February 2025
20AQI
20AQI
22nd February 2025
27AQI
27AQI
23rd February 2025
22AQI
22AQI
24th February 2025
20AQI
20AQI
25th February 2025
21AQI
21AQI
26th February 2025
25AQI
25AQI
27th February 2025
30AQI
30AQI
28th February 2025
28AQI
28AQI
1st March 2025
29AQI
29AQI
2nd March 2025
26AQI
26AQI
3rd March 2025
24AQI
24AQI
4th March 2025
27AQI
27AQI
5th March 2025
20AQI
20AQI
6th March 2025
19AQI
19AQI
7th March 2025
24AQI
24AQI
8th March 2025
23AQI
23AQI
9th March 2025
28AQI
28AQI
10th March 2025
26AQI
26AQI
11th March 2025
24AQI
24AQI
12th March 2025
21AQI
21AQI
13th March 2025
19AQI
19AQI
14th March 2025
20AQI
20AQI
15th March 2025
38AQI
38AQI
16th March 2025
31AQI
31AQI
17th March 2025
16AQI
16AQI
18th March 2025
20AQI
20AQI
19th March 2025
20AQI
20AQI
20th March 2025
15AQI
15AQI
21st March 2025
19AQI
19AQI
22nd March 2025
17AQI
17AQI
23rd March 2025
20AQI
20AQI
24th March 2025
19AQI
19AQI
25th March 2025
28AQI
28AQI
26th March 2025
25AQI
25AQI
27th March 2025
22AQI
22AQI
28th March 2025
21AQI
21AQI
29th March 2025
18AQI
18AQI
30th March 2025
21AQI
21AQI
31st March 2025
24AQI
24AQI
1st April 2025
17AQI
17AQI
2nd April 2025
17AQI
17AQI
3rd April 2025
17AQI
17AQI
4th April 2025
27AQI
27AQI
5th April 2025
27AQI
27AQI
6th April 2025
23AQI
23AQI
7th April 2025
13AQI
13AQI
8th April 2025
15AQI
15AQI
9th April 2025
17AQI
17AQI
10th April 2025
17AQI
17AQI
11th April 2025
17AQI
17AQI
12th April 2025
25AQI
25AQI
13th April 2025
21AQI
21AQI
14th April 2025
24AQI
24AQI
15th April 2025
27AQI
27AQI
16th April 2025
29AQI
29AQI
17th April 2025
23AQI
23AQI
18th April 2025
23AQI
23AQI
19th April 2025
28AQI
28AQI
20th April 2025
26AQI
26AQI
21st April 2025
26AQI
26AQI
22nd April 2025
39AQI
39AQI
23rd April 2025
47AQI
47AQI
24th April 2025
39AQI
39AQI
25th April 2025
19AQI
19AQI
26th April 2025
18AQI
18AQI
27th April 2025
23AQI
23AQI
28th April 2025
24AQI
24AQI
29th April 2025
30AQI
30AQI
30th April 2025
31AQI
31AQI
1st May 2025
34AQI
34AQI
2nd May 2025
31AQI
31AQI
3rd May 2025
23AQI
23AQI
4th May 2025
27AQI
27AQI
5th May 2025
26AQI
26AQI
6th May 2025
27AQI
27AQI
7th May 2025
38AQI
38AQI
8th May 2025
36AQI
36AQI
9th May 2025
26AQI
26AQI
10th May 2025
23AQI
23AQI
11th May 2025
20AQI
20AQI
12th May 2025
21AQI
21AQI
13th May 2025
17AQI
17AQI
14th May 2025
20AQI
20AQI
15th May 2025
22AQI
22AQI
16th May 2025
30AQI
30AQI
17th May 2025
23AQI
23AQI
18th May 2025
25AQI
25AQI
19th May 2025
19AQI
19AQI
20th May 2025
16AQI
16AQI
21st May 2025
27AQI
27AQI
22nd May 2025
26AQI
26AQI
23rd May 2025
18AQI
18AQI
24th May 2025
31AQI
31AQI
25th May 2025
22AQI
22AQI
26th May 2025
15AQI
15AQI
27th May 2025
23AQI
23AQI
28th May 2025
23AQI
23AQI
29th May 2025
20AQI
20AQI
30th May 2025
24AQI
24AQI
31st May 2025
33AQI
33AQI
1st June 2025
47AQI
47AQI
2nd June 2025
50AQI
50AQI
3rd June 2025
35AQI
35AQI
4th June 2025
44AQI
44AQI
5th June 2025
33AQI
33AQI
6th June 2025
20AQI
20AQI
7th June 2025
24AQI
24AQI
8th June 2025
18AQI
18AQI
9th June 2025
17AQI
17AQI
10th June 2025
19AQI
19AQI
11th June 2025
37AQI
37AQI
12th June 2025
45AQI
45AQI
13th June 2025
40AQI
40AQI
14th June 2025
39AQI
39AQI
15th June 2025
35AQI
35AQI
16th June 2025
33AQI
33AQI
17th June 2025
29AQI
29AQI
18th June 2025
26AQI
26AQI
19th June 2025
32AQI
32AQI
20th June 2025
30AQI
30AQI
21st June 2025
26AQI
26AQI
22nd June 2025
22AQI
22AQI
23rd June 2025
21AQI
21AQI
24th June 2025
21AQI
21AQI
25th June 2025
19AQI
19AQI
26th June 2025
27AQI
27AQI
27th June 2025
32AQI
32AQI
28th June 2025
32AQI
32AQI
29th June 2025
25AQI
25AQI
30th June 2025
21AQI
21AQI
1st July 2025
24AQI
24AQI
2nd July 2025
20AQI
20AQI
3rd July 2025
35AQI
35AQI
4th July 2025
25AQI
25AQI
5th July 2025
27AQI
27AQI
6th July 2025
27AQI
27AQI
7th July 2025
20AQI
20AQI
8th July 2025
18AQI
18AQI
9th July 2025
17AQI
17AQI
10th July 2025
22AQI
22AQI
11th July 2025
39AQI
39AQI
12th July 2025
44AQI
44AQI
13th July 2025
30AQI
30AQI
14th July 2025
19AQI
19AQI
15th July 2025
17AQI
17AQI
16th July 2025
18AQI
18AQI
17th July 2025
18AQI
18AQI
18th July 2025
16AQI
16AQI
19th July 2025
19AQI
19AQI
20th July 2025
17AQI
17AQI
21st July 2025
23AQI
23AQI
22nd July 2025
15AQI
15AQI
23rd July 2025
15AQI
15AQI
24th July 2025
15AQI
15AQI
25th July 2025
15AQI
15AQI
26th July 2025
15AQI
15AQI
27th July 2025
16AQI
16AQI
28th July 2025
18AQI
18AQI
29th July 2025
25AQI
25AQI
30th July 2025
28AQI
28AQI
31st July 2025
27AQI
27AQI
1st August 2025
27AQI
27AQI
2nd August 2025
24AQI
24AQI
3rd August 2025
32AQI
32AQI
4th August 2025
33AQI
33AQI
5th August 2025
28AQI
28AQI
6th August 2025
38AQI
38AQI
7th August 2025
31AQI
31AQI
8th August 2025
38AQI
38AQI
9th August 2025
37AQI
37AQI
10th August 2025
31AQI
31AQI
11th August 2025
29AQI
29AQI
12th August 2025
28AQI
28AQI
13th August 2025
27AQI
27AQI
14th August 2025
21AQI
21AQI
15th August 2025
40AQI
40AQI
16th August 2025
19AQI
19AQI
17th August 2025
16AQI
16AQI
18th August 2025
19AQI
19AQI
19th August 2025
21AQI
21AQI
20th August 2025
29AQI
29AQI
21st August 2025
37AQI
37AQI
22nd August 2025
53AQI
53AQI
23rd August 2025
40AQI
40AQI
24th August 2025
30AQI
30AQI
25th August 2025
32AQI
32AQI
26th August 2025
37AQI
37AQI
27th August 2025
40AQI
40AQI
28th August 2025
38AQI
38AQI
29th August 2025
29AQI
29AQI
30th August 2025
32AQI
32AQI
31st August 2025
32AQI
32AQI
1st September 2025
32AQI
32AQI
2nd September 2025
44AQI
44AQI
3rd September 2025
32AQI
32AQI
4th September 2025
29AQI
29AQI
5th September 2025
26AQI
26AQI
6th September 2025
32AQI
32AQI
7th September 2025
29AQI
29AQI
8th September 2025
21AQI
21AQI
9th September 2025
17AQI
17AQI
10th September 2025
19AQI
19AQI
11th September 2025
28AQI
28AQI
12th September 2025
32AQI
32AQI
13th September 2025
35AQI
35AQI
14th September 2025
25AQI
25AQI
15th September 2025
27AQI
27AQI
16th September 2025
36AQI
36AQI
17th September 2025
39AQI
39AQI
18th September 2025
39AQI
39AQI
19th September 2025
37AQI
37AQI
20th September 2025
39AQI
39AQI
21st September 2025
33AQI
33AQI
22nd September 2025
33AQI
33AQI
23rd September 2025
38AQI
38AQI
24th September 2025
46AQI
46AQI
25th September 2025
35AQI
35AQI
26th September 2025
40AQI
40AQI
27th September 2025
46AQI
46AQI
28th September 2025
34AQI
34AQI
29th September 2025
29AQI
29AQI
30th September 2025
23AQI
23AQI
1st October 2025
36AQI
36AQI
2nd October 2025
43AQI
43AQI
3rd October 2025
51AQI
51AQI
4th October 2025
48AQI
48AQI
5th October 2025
51AQI
51AQI
6th October 2025
46AQI
46AQI
7th October 2025
48AQI
48AQI
8th October 2025
52AQI
52AQI
9th October 2025
50AQI
50AQI
10th October 2025
47AQI
47AQI
11th October 2025
40AQI
40AQI
12th October 2025
48AQI
48AQI
13th October 2025
52AQI
52AQI
14th October 2025
51AQI
51AQI
15th October 2025
49AQI
49AQI
16th October 2025
59AQI
59AQI
17th October 2025
53AQI
53AQI
18th October 2025
56AQI
56AQI
19th October 2025
53AQI
53AQI
20th October 2025
46AQI
46AQI
21st October 2025
40AQI
40AQI
22nd October 2025
38AQI
38AQI
23rd October 2025
40AQI
40AQI
24th October 2025
37AQI
37AQI
25th October 2025
22AQI
22AQI
26th October 2025
29AQI
29AQI
27th October 2025
31AQI
31AQI
28th October 2025
29AQI
29AQI
29th October 2025
37AQI
37AQI
30th October 2025
44AQI
44AQI
31st October 2025
36AQI
36AQI
1st November 2025
39AQI
39AQI
2nd November 2025
47AQI
47AQI
3rd November 2025
28AQI
28AQI
4th November 2025
28AQI
28AQI
5th November 2025
24AQI
24AQI
6th November 2025
33AQI
33AQI
7th November 2025
25AQI
25AQI
8th November 2025
31AQI
31AQI
9th November 2025
47AQI
47AQI
10th November 2025
39AQI
39AQI
11th November 2025
45AQI
45AQI
12th November 2025
34AQI
34AQI
13th November 2025
31AQI
31AQI
14th November 2025
27AQI
27AQI
15th November 2025
24AQI
24AQI
16th November 2025
25AQI
25AQI
17th November 2025
27AQI
27AQI
18th November 2025
19AQI
19AQI
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
36AQI
24AQI
23AQI
24AQI
25AQI
30AQI
22AQI
31AQI
33AQI
44AQI
32AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202529AQI
29
2
28
31
30
31
30
31
30
1
30
22
9
18
310
12
Highest AQI recorded in
October44AQI
Lowest AQI recorded in
July22AQI
202422AQI
31
29
29
2
30
31
29
29
2
31
30
31
27
3
25
6
352
13
Highest AQI recorded in
December38AQI
Lowest AQI recorded in
May11AQI
202328AQI
30
1
28
31
30
30
1
29
1
31
29
2
26
4
31
28
1
31
354
10
Highest AQI recorded in
February34AQI
Lowest AQI recorded in
October16AQI
202232AQI
17
13
20
2
31
25
31
30
19
1
1
27
2
31
28
2
24
7
284
27
Highest AQI recorded in
January49AQI
Lowest AQI recorded in
July25AQI
202136AQI
20
10
26
2
31
30
31
30
31
16
13
2
21
9
30
1
20
10
22
9
308
54
2
Highest AQI recorded in
August56AQI
Lowest AQI recorded in
June26AQI
202044AQI
12
20
18
30
30
1
16
4
9
2
11
9
6
4
18
10
3
26
4
20
11
201
39
15
9
Highest AQI recorded in
September80AQI
Lowest AQI recorded in
July19AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2020(Avg.)
44AQILeast Polluted Year Recorded
2024(Avg.)
22AQIVacaville's annual 2025 AQI (29) shows an average percentage change of -4.5% (improved AQI) compared to previous years: 2020 (44), 2021 (36), 2022 (32), 2023 (28), 2024 (22).
