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+
August Air Quality Analysis
Vacaville, California, United States
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
31st Aug 2023
69AQILowest AQI recorded on
14th Aug 2024
10AQISame Day Analysis (14th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 46 of Good air quality on the same day.
Day & Night AQI Trend: 13th Aug - 14th Aug 2026
Vacaville, California, United States
AQI
Day
Night
.
6 AM13th Aug 2026
8 PM
5 AM14th Aug 2026
Day time
Avg. Highest Time
7AM13th Aug
56AQI
Avg. Lowest Time
6PM13th Aug
28AQI
Night time
Avg. Highest Time
4AM14th Aug
54AQI
Avg. Lowest Time
3AM14th Aug
46AQI
In the last 24 hours,
Vacaville's AQI reached its highest point of 56 at 7 AM during the Day, while the lowest point, 28, was recorded at 6 PM during the Day between 13th Aug and 14th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Vacaville, California, United States
JulAug
16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th
Day
Night
16th Jul 2026146 AMAQI
16th Jul 2026167 AMAQI
16th Jul 2026168 AMAQI
16th Jul 2026189 AMAQI
16th Jul 20262010 AMAQI
16th Jul 20261911 AMAQI
16th Jul 20261812 PMAQI
16th Jul 2026201 PMAQI
16th Jul 2026182 PMAQI
16th Jul 2026173 PMAQI
16th Jul 2026154 PMAQI
16th Jul 2026145 PMAQI
16th Jul 2026176 PMAQI
16th Jul 2026177 PMAQI
16th Jul 2026168 PMAQI
16th Jul 2026149 PMAQI
16th Jul 20261810 PMAQI
16th Jul 20261711 PMAQI
17th Jul 20261612 AMAQI
17th Jul 2026161 AMAQI
17th Jul 2026452 AMAQI
17th Jul 2026463 AMAQI
17th Jul 2026464 AMAQI
17th Jul 2026435 AMAQI
28°C18/38°C
17th Jul 2026416 AMAQI
17th Jul 2026427 AMAQI
17th Jul 2026418 AMAQI
17th Jul 2026509 AMAQI
17th Jul 20265210 AMAQI
17th Jul 20264811 AMAQI
17th Jul 20264912 PMAQI
17th Jul 2026461 PMAQI
17th Jul 2026482 PMAQI
17th Jul 2026413 PMAQI
17th Jul 2026454 PMAQI
17th Jul 2026415 PMAQI
17th Jul 2026416 PMAQI
17th Jul 2026447 PMAQI
17th Jul 2026498 PMAQI
17th Jul 2026589 PMAQI
17th Jul 20265210 PMAQI
17th Jul 20264211 PMAQI
18th Jul 20263412 AMAQI
18th Jul 2026481 AMAQI
18th Jul 2026502 AMAQI
18th Jul 2026363 AMAQI
18th Jul 2026484 AMAQI
18th Jul 2026445 AMAQI
24°C16/35°C
18th Jul 2026456 AMAQI
18th Jul 2026477 AMAQI
18th Jul 2026408 AMAQI
18th Jul 2026469 AMAQI
18th Jul 20265210 AMAQI
18th Jul 20264611 AMAQI
18th Jul 20264712 PMAQI
18th Jul 2026451 PMAQI
18th Jul 2026462 PMAQI
18th Jul 2026483 PMAQI
18th Jul 2026534 PMAQI
18th Jul 2026505 PMAQI
18th Jul 2026506 PMAQI
18th Jul 2026527 PMAQI
18th Jul 2026508 PMAQI
18th Jul 2026519 PMAQI
18th Jul 20264110 PMAQI
18th Jul 20264611 PMAQI
19th Jul 20263612 AMAQI
19th Jul 2026431 AMAQI
19th Jul 2026422 AMAQI
19th Jul 2026423 AMAQI
19th Jul 2026434 AMAQI
19th Jul 2026435 AMAQI
25°C17/34°C
19th Jul 2026326 AMAQI
19th Jul 2026447 AMAQI
19th Jul 2026448 AMAQI
19th Jul 2026409 AMAQI
19th Jul 20264610 AMAQI
19th Jul 20264811 AMAQI
19th Jul 20265012 PMAQI
19th Jul 2026341 PMAQI
19th Jul 2026442 PMAQI
19th Jul 2026383 PMAQI
19th Jul 2026504 PMAQI
19th Jul 2026465 PMAQI
19th Jul 2026376 PMAQI
19th Jul 2026517 PMAQI
19th Jul 2026368 PMAQI
19th Jul 2026469 PMAQI
19th Jul 20265010 PMAQI
19th Jul 20264511 PMAQI
20th Jul 20263712 AMAQI
20th Jul 2026461 AMAQI
20th Jul 2026502 AMAQI
20th Jul 2026423 AMAQI
20th Jul 2026424 AMAQI
20th Jul 2026565 AMAQI
25°C16/34°C
20th Jul 2026546 AMAQI
20th Jul 2026487 AMAQI
20th Jul 2026468 AMAQI
20th Jul 2026429 AMAQI
20th Jul 20263410 AMAQI
20th Jul 20265011 AMAQI
20th Jul 20265812 PMAQI
20th Jul 2026551 PMAQI
20th Jul 2026572 PMAQI
20th Jul 2026593 PMAQI
20th Jul 2026514 PMAQI
20th Jul 2026385 PMAQI
20th Jul 2026626 PMAQI
20th Jul 2026427 PMAQI
20th Jul 2026489 PMAQI
20th Jul 20264610 PMAQI
20th Jul 20261411 PMAQI
21st Jul 20261612 AMAQI
21st Jul 2026391 AMAQI
21st Jul 2026372 AMAQI
21st Jul 2026523 AMAQI
21st Jul 202694 AMAQI
21st Jul 2026215 AMAQI
27°C21/35°C
21st Jul 2026426 AMAQI
21st Jul 2026447 AMAQI
21st Jul 2026468 AMAQI
21st Jul 2026549 AMAQI
21st Jul 20265610 AMAQI
21st Jul 20264611 AMAQI
21st Jul 20265012 PMAQI
21st Jul 2026501 PMAQI
21st Jul 2026462 PMAQI
21st Jul 2026493 PMAQI
21st Jul 2026454 PMAQI
21st Jul 2026425 PMAQI
21st Jul 2026426 PMAQI
21st Jul 2026367 PMAQI
21st Jul 2026368 PMAQI
21st Jul 2026499 PMAQI
21st Jul 20263910 PMAQI
21st Jul 20264611 PMAQI
22nd Jul 20264612 AMAQI
22nd Jul 2026361 AMAQI
22nd Jul 2026342 AMAQI
22nd Jul 2026463 AMAQI
22nd Jul 2026464 AMAQI
22nd Jul 2026125 AMAQI
30°C22/40°C
22nd Jul 2026426 AMAQI
22nd Jul 2026427 AMAQI
22nd Jul 2026468 AMAQI
22nd Jul 2026469 AMAQI
22nd Jul 20264610 AMAQI
22nd Jul 20265011 AMAQI
22nd Jul 20265012 PMAQI
22nd Jul 2026501 PMAQI
22nd Jul 2026362 PMAQI
22nd Jul 2026503 PMAQI
22nd Jul 2026524 PMAQI
22nd Jul 2026345 PMAQI
22nd Jul 2026346 PMAQI
22nd Jul 2026437 PMAQI
22nd Jul 2026418 PMAQI
22nd Jul 2026379 PMAQI
22nd Jul 20265010 PMAQI
22nd Jul 20261911 PMAQI
23rd Jul 20261812 AMAQI
23rd Jul 2026221 AMAQI
23rd Jul 2026182 AMAQI
23rd Jul 2026423 AMAQI
23rd Jul 2026184 AMAQI
23rd Jul 2026225 AMAQI
25°C20/31°C
23rd Jul 2026176 AMAQI
23rd Jul 2026227 AMAQI
23rd Jul 2026508 AMAQI
23rd Jul 2026549 AMAQI
23rd Jul 20265210 AMAQI
23rd Jul 20262011 AMAQI
23rd Jul 20261012 PMAQI
23rd Jul 2026461 PMAQI
23rd Jul 2026612 PMAQI
23rd Jul 2026433 PMAQI
23rd Jul 2026264 PMAQI
23rd Jul 2026405 PMAQI
23rd Jul 2026386 PMAQI
23rd Jul 2026237 PMAQI
23rd Jul 2026378 PMAQI
23rd Jul 2026549 PMAQI
23rd Jul 20265210 PMAQI
23rd Jul 20265011 PMAQI
24th Jul 20263912 AMAQI
24th Jul 2026421 AMAQI
24th Jul 2026412 AMAQI
24th Jul 2026583 AMAQI
24th Jul 2026544 AMAQI
24th Jul 2026565 AMAQI
25°C15/36°C
24th Jul 2026546 AMAQI
24th Jul 2026467 AMAQI
24th Jul 2026728 AMAQI
24th Jul 2026659 AMAQI
24th Jul 20265010 AMAQI
24th Jul 20266011 AMAQI
24th Jul 20265812 PMAQI
24th Jul 2026381 PMAQI
24th Jul 2026522 PMAQI
24th Jul 2026503 PMAQI
24th Jul 2026504 PMAQI
24th Jul 2026365 PMAQI
24th Jul 2026216 PMAQI
24th Jul 2026527 PMAQI
24th Jul 2026518 PMAQI
24th Jul 2026539 PMAQI
24th Jul 20264810 PMAQI
24th Jul 20266311 PMAQI
25th Jul 20266012 AMAQI
25th Jul 2026671 AMAQI
25th Jul 2026682 AMAQI
25th Jul 2026583 AMAQI
25th Jul 2026514 AMAQI
25th Jul 2026605 AMAQI
26°C17/37°C
25th Jul 2026456 AMAQI
25th Jul 2026587 AMAQI
25th Jul 2026418 AMAQI
25th Jul 2026469 AMAQI
25th Jul 20264610 AMAQI
25th Jul 20264611 AMAQI
25th Jul 20263612 PMAQI
25th Jul 2026461 PMAQI
25th Jul 2026462 PMAQI
25th Jul 2026483 PMAQI
25th Jul 2026464 PMAQI
25th Jul 2026445 PMAQI
25th Jul 2026276 PMAQI
25th Jul 2026427 PMAQI
25th Jul 2026538 PMAQI
25th Jul 2026549 PMAQI
25th Jul 20264610 PMAQI
25th Jul 20264611 PMAQI
26th Jul 20264212 AMAQI
26th Jul 2026481 AMAQI
26th Jul 2026452 AMAQI
26th Jul 2026493 AMAQI
26th Jul 2026384 AMAQI
26th Jul 2026465 AMAQI
27°C18/37°C
26th Jul 2026386 AMAQI
26th Jul 2026427 AMAQI
26th Jul 2026468 AMAQI
26th Jul 2026189 AMAQI
26th Jul 20264210 AMAQI
26th Jul 20264611 AMAQI
26th Jul 20263712 PMAQI
26th Jul 2026461 PMAQI
26th Jul 2026392 PMAQI
26th Jul 2026503 PMAQI
26th Jul 2026504 PMAQI
26th Jul 2026295 PMAQI
26th Jul 2026376 PMAQI
26th Jul 2026437 PMAQI
26th Jul 2026518 PMAQI
26th Jul 2026549 PMAQI
26th Jul 20265310 PMAQI
26th Jul 20265611 PMAQI
27th Jul 20265012 AMAQI
27th Jul 2026421 AMAQI
27th Jul 2026482 AMAQI
27th Jul 2026423 AMAQI
27th Jul 2026344 AMAQI
27th Jul 2026425 AMAQI
27°C18/37°C
27th Jul 2026346 AMAQI
27th Jul 2026437 AMAQI
27th Jul 2026468 AMAQI
27th Jul 2026469 AMAQI
27th Jul 20264810 AMAQI
27th Jul 20266511 AMAQI
27th Jul 20265612 PMAQI
27th Jul 2026561 PMAQI
27th Jul 2026462 PMAQI
27th Jul 2026533 PMAQI
27th Jul 2026554 PMAQI
27th Jul 2026265 PMAQI
27th Jul 2026336 PMAQI
27th Jul 2026457 PMAQI
27th Jul 2026268 PMAQI
27th Jul 2026469 PMAQI
27th Jul 20263210 PMAQI
27th Jul 20263711 PMAQI
28th Jul 20264912 AMAQI
28th Jul 2026381 AMAQI
28th Jul 2026482 AMAQI
28th Jul 2026423 AMAQI
28th Jul 2026464 AMAQI
28th Jul 2026425 AMAQI
26°C16/37°C
28th Jul 2026396 AMAQI
28th Jul 2026527 AMAQI
28th Jul 2026448 AMAQI
28th Jul 2026469 AMAQI
28th Jul 20265010 AMAQI
28th Jul 20265411 AMAQI
28th Jul 20264012 PMAQI
28th Jul 2026411 PMAQI
28th Jul 2026422 PMAQI
28th Jul 2026443 PMAQI
28th Jul 2026424 PMAQI
28th Jul 2026505 PMAQI
28th Jul 2026386 PMAQI
28th Jul 2026467 PMAQI
28th Jul 2026538 PMAQI
28th Jul 2026519 PMAQI
28th Jul 20264610 PMAQI
28th Jul 20265011 PMAQI
29th Jul 20264612 AMAQI
29th Jul 2026491 AMAQI
29th Jul 2026462 AMAQI
29th Jul 2026513 AMAQI
29th Jul 2026484 AMAQI
29th Jul 2026505 AMAQI
26°C15/37°C
29th Jul 2026426 AMAQI
29th Jul 2026477 AMAQI
29th Jul 2026488 AMAQI
29th Jul 2026529 AMAQI
29th Jul 20264110 AMAQI
29th Jul 20263611 AMAQI
29th Jul 20264312 PMAQI
29th Jul 2026421 PMAQI
29th Jul 2026502 PMAQI
29th Jul 2026523 PMAQI
29th Jul 2026274 PMAQI
29th Jul 2026505 PMAQI
29th Jul 2026466 PMAQI
29th Jul 2026507 PMAQI
29th Jul 2026358 PMAQI
29th Jul 2026459 PMAQI
29th Jul 20264410 PMAQI
29th Jul 20264511 PMAQI
30th Jul 20264612 AMAQI
30th Jul 2026441 AMAQI
30th Jul 2026432 AMAQI
30th Jul 2026393 AMAQI
30th Jul 2026424 AMAQI
30th Jul 2026455 AMAQI
27°C18/38°C
30th Jul 2026446 AMAQI
30th Jul 2026447 AMAQI
30th Jul 2026468 AMAQI
30th Jul 2026499 AMAQI
30th Jul 20264210 AMAQI
30th Jul 20264411 AMAQI
30th Jul 20264412 PMAQI
30th Jul 2026431 PMAQI
30th Jul 2026452 PMAQI
30th Jul 2026443 PMAQI
30th Jul 2026464 PMAQI
30th Jul 2026525 PMAQI
30th Jul 2026446 PMAQI
30th Jul 2026427 PMAQI
30th Jul 2026408 PMAQI
30th Jul 2026399 PMAQI
30th Jul 20264210 PMAQI
30th Jul 20266011 PMAQI
31st Jul 20266612 AMAQI
31st Jul 2026651 AMAQI
31st Jul 2026582 AMAQI
31st Jul 2026573 AMAQI
31st Jul 2026564 AMAQI
31st Jul 2026625 AMAQI
27°C19/38°C
31st Jul 2026606 AMAQI
31st Jul 2026647 AMAQI
31st Jul 2026598 AMAQI
31st Jul 2026599 AMAQI
31st Jul 20265610 AMAQI
31st Jul 20265611 AMAQI
31st Jul 20266312 PMAQI
31st Jul 2026621 PMAQI
31st Jul 2026562 PMAQI
31st Jul 2026613 PMAQI
31st Jul 2026554 PMAQI
31st Jul 2026555 PMAQI
31st Jul 2026496 PMAQI
31st Jul 2026507 PMAQI
31st Jul 2026508 PMAQI
31st Jul 2026549 PMAQI
31st Jul 20266210 PMAQI
31st Jul 20265611 PMAQI
1st Aug 20265912 AMAQI
1st Aug 2026521 AMAQI
1st Aug 2026452 AMAQI
1st Aug 2026413 AMAQI
1st Aug 2026414 AMAQI
1st Aug 2026415 AMAQI
27°C16/39°C
1st Aug 2026546 AMAQI
1st Aug 2026467 AMAQI
1st Aug 2026448 AMAQI
1st Aug 2026529 AMAQI
1st Aug 20263810 AMAQI
1st Aug 20264611 AMAQI
1st Aug 20264212 PMAQI
1st Aug 2026451 PMAQI
1st Aug 2026412 PMAQI
1st Aug 2026423 PMAQI
1st Aug 2026444 PMAQI
1st Aug 2026415 PMAQI
1st Aug 2026436 PMAQI
1st Aug 2026467 PMAQI
1st Aug 2026418 PMAQI
1st Aug 2026419 PMAQI
1st Aug 20264610 PMAQI
1st Aug 20264911 PMAQI
2nd Aug 20264812 AMAQI
2nd Aug 2026441 AMAQI
2nd Aug 2026432 AMAQI
2nd Aug 2026463 AMAQI
2nd Aug 2026494 AMAQI
2nd Aug 2026505 AMAQI
28°C17/40°C
2nd Aug 2026526 AMAQI
2nd Aug 2026487 AMAQI
2nd Aug 2026508 AMAQI
2nd Aug 2026489 AMAQI
2nd Aug 20265410 AMAQI
2nd Aug 20265211 AMAQI
2nd Aug 20264612 PMAQI
2nd Aug 2026451 PMAQI
2nd Aug 2026492 PMAQI
2nd Aug 2026503 PMAQI
2nd Aug 2026494 PMAQI
2nd Aug 2026545 PMAQI
2nd Aug 2026506 PMAQI
2nd Aug 2026447 PMAQI
2nd Aug 2026488 PMAQI
2nd Aug 2026469 PMAQI
2nd Aug 20264810 PMAQI
2nd Aug 20265011 PMAQI
3rd Aug 20265512 AMAQI
3rd Aug 2026531 AMAQI
3rd Aug 2026462 AMAQI
3rd Aug 2026483 AMAQI
3rd Aug 2026524 AMAQI
3rd Aug 2026485 AMAQI
30°C20/41°C
3rd Aug 2026526 AMAQI
3rd Aug 2026527 AMAQI
3rd Aug 2026528 AMAQI
3rd Aug 2026529 AMAQI
3rd Aug 20265310 AMAQI
3rd Aug 20265211 AMAQI
3rd Aug 20265212 PMAQI
3rd Aug 2026521 PMAQI
3rd Aug 2026522 PMAQI
3rd Aug 2026523 PMAQI
3rd Aug 2026654 PMAQI
3rd Aug 2026545 PMAQI
3rd Aug 2026526 PMAQI
3rd Aug 2026567 PMAQI
3rd Aug 2026528 PMAQI
3rd Aug 2026529 PMAQI
3rd Aug 20265110 PMAQI
3rd Aug 20265211 PMAQI
4th Aug 20264812 AMAQI
4th Aug 2026471 AMAQI
4th Aug 2026442 AMAQI
4th Aug 2026523 AMAQI
4th Aug 2026484 AMAQI
4th Aug 2026425 AMAQI
31°C20/42°C
4th Aug 2026436 AMAQI
4th Aug 2026507 AMAQI
4th Aug 2026468 AMAQI
4th Aug 2026509 AMAQI
4th Aug 20265310 AMAQI
4th Aug 20265111 AMAQI
4th Aug 20265112 PMAQI
4th Aug 2026541 PMAQI
4th Aug 2026532 PMAQI
4th Aug 2026493 PMAQI
4th Aug 2026524 PMAQI
4th Aug 2026495 PMAQI
4th Aug 2026426 PMAQI
4th Aug 2026487 PMAQI
4th Aug 2026498 PMAQI
4th Aug 2026469 PMAQI
4th Aug 20264510 PMAQI
4th Aug 20264111 PMAQI
5th Aug 20264212 AMAQI
5th Aug 2026441 AMAQI
5th Aug 2026482 AMAQI
5th Aug 2026403 AMAQI
5th Aug 2026454 AMAQI
5th Aug 2026435 AMAQI
29°C20/39°C
5th Aug 2026426 AMAQI
5th Aug 2026447 AMAQI
5th Aug 2026508 AMAQI
5th Aug 2026469 AMAQI
5th Aug 20264810 AMAQI
5th Aug 20264311 AMAQI
5th Aug 20265012 PMAQI
5th Aug 2026451 PMAQI
5th Aug 2026542 PMAQI
5th Aug 2026543 PMAQI
5th Aug 2026504 PMAQI
5th Aug 2026415 PMAQI
5th Aug 2026396 PMAQI
5th Aug 2026487 PMAQI
5th Aug 2026468 PMAQI
5th Aug 2026489 PMAQI
5th Aug 20265210 PMAQI
5th Aug 20265011 PMAQI
6th Aug 20264612 AMAQI
6th Aug 2026461 AMAQI
6th Aug 2026362 AMAQI
6th Aug 2026403 AMAQI
6th Aug 2026324 AMAQI
6th Aug 2026455 AMAQI
27°C20/37°C
6th Aug 2026396 AMAQI
6th Aug 2026467 AMAQI
6th Aug 2026348 AMAQI
6th Aug 2026229 AMAQI
6th Aug 20265610 AMAQI
6th Aug 20265111 AMAQI
6th Aug 20265312 PMAQI
6th Aug 2026651 PMAQI
6th Aug 2026562 PMAQI
6th Aug 2026373 PMAQI
6th Aug 2026394 PMAQI
6th Aug 2026425 PMAQI
6th Aug 2026526 PMAQI
6th Aug 2026507 PMAQI
6th Aug 2026488 PMAQI
6th Aug 2026389 PMAQI
6th Aug 20265410 PMAQI
6th Aug 20265011 PMAQI
7th Aug 20264212 AMAQI
7th Aug 2026441 AMAQI
7th Aug 2026452 AMAQI
7th Aug 2026523 AMAQI
7th Aug 2026524 AMAQI
7th Aug 2026465 AMAQI
27°C19/38°C
7th Aug 2026326 AMAQI
7th Aug 2026507 AMAQI
7th Aug 2026508 AMAQI
7th Aug 2026369 AMAQI
7th Aug 20264210 AMAQI
7th Aug 20264611 AMAQI
7th Aug 20263612 PMAQI
7th Aug 2026521 PMAQI
7th Aug 2026322 PMAQI
7th Aug 2026443 PMAQI
7th Aug 2026544 PMAQI
7th Aug 2026385 PMAQI
7th Aug 2026376 PMAQI
7th Aug 2026407 PMAQI
7th Aug 2026468 PMAQI
7th Aug 2026569 PMAQI
7th Aug 20264510 PMAQI
7th Aug 20264311 PMAQI
8th Aug 20264612 AMAQI
8th Aug 2026481 AMAQI
8th Aug 2026482 AMAQI
8th Aug 2026413 AMAQI
8th Aug 2026424 AMAQI
8th Aug 2026505 AMAQI
28°C18/41°C
8th Aug 2026456 AMAQI
8th Aug 2026497 AMAQI
8th Aug 2026518 AMAQI
8th Aug 2026509 AMAQI
8th Aug 20264810 AMAQI
8th Aug 20265111 AMAQI
8th Aug 20265212 PMAQI
8th Aug 2026521 PMAQI
8th Aug 2026462 PMAQI
8th Aug 2026403 PMAQI
8th Aug 2026384 PMAQI
8th Aug 2026385 PMAQI
8th Aug 2026426 PMAQI
8th Aug 2026417 PMAQI
8th Aug 2026458 PMAQI
8th Aug 2026469 PMAQI
8th Aug 20265110 PMAQI
8th Aug 20265211 PMAQI
9th Aug 20264812 AMAQI
9th Aug 2026441 AMAQI
9th Aug 2026382 AMAQI
9th Aug 2026483 AMAQI
9th Aug 2026414 AMAQI
9th Aug 2026475 AMAQI
27°C19/38°C
9th Aug 2026426 AMAQI
9th Aug 2026447 AMAQI
9th Aug 2026338 AMAQI
9th Aug 2026419 AMAQI
9th Aug 20264110 AMAQI
9th Aug 20264711 AMAQI
9th Aug 20265012 PMAQI
9th Aug 2026431 PMAQI
9th Aug 2026452 PMAQI
9th Aug 2026473 PMAQI
9th Aug 2026364 PMAQI
9th Aug 2026445 PMAQI
9th Aug 2026436 PMAQI
9th Aug 2026487 PMAQI
9th Aug 2026468 PMAQI
9th Aug 2026439 PMAQI
9th Aug 20264710 PMAQI
9th Aug 20264811 PMAQI
10th Aug 20264912 AMAQI
10th Aug 2026481 AMAQI
10th Aug 2026462 AMAQI
10th Aug 2026433 AMAQI
10th Aug 2026464 AMAQI
10th Aug 2026445 AMAQI
28°C17/41°C
10th Aug 2026466 AMAQI
10th Aug 2026487 AMAQI
10th Aug 2026448 AMAQI
10th Aug 2026429 AMAQI
10th Aug 20264810 AMAQI
10th Aug 20265411 AMAQI
10th Aug 20265412 PMAQI
10th Aug 2026511 PMAQI
10th Aug 2026522 PMAQI
10th Aug 2026513 PMAQI
10th Aug 2026434 PMAQI
10th Aug 2026495 PMAQI
10th Aug 2026506 PMAQI
10th Aug 2026527 PMAQI
10th Aug 2026488 PMAQI
10th Aug 2026459 PMAQI
10th Aug 20264910 PMAQI
10th Aug 20264711 PMAQI
11th Aug 20265012 AMAQI
11th Aug 2026441 AMAQI
11th Aug 2026412 AMAQI
11th Aug 2026473 AMAQI
11th Aug 2026474 AMAQI
11th Aug 2026505 AMAQI
25°C17/35°C
11th Aug 2026466 AMAQI
11th Aug 2026437 AMAQI
11th Aug 2026438 AMAQI
11th Aug 2026409 AMAQI
11th Aug 20264210 AMAQI
11th Aug 20264711 AMAQI
11th Aug 20264212 PMAQI
11th Aug 2026461 PMAQI
11th Aug 2026502 PMAQI
11th Aug 2026463 PMAQI
11th Aug 2026564 PMAQI
11th Aug 2026455 PMAQI
11th Aug 2026426 PMAQI
11th Aug 2026527 PMAQI
11th Aug 2026348 PMAQI
11th Aug 2026349 PMAQI
11th Aug 20264010 PMAQI
11th Aug 20263011 PMAQI
12th Aug 20264212 AMAQI
12th Aug 2026321 AMAQI
12th Aug 2026362 AMAQI
12th Aug 2026333 AMAQI
12th Aug 2026424 AMAQI
12th Aug 2026345 AMAQI
25°C18/34°C
12th Aug 2026306 AMAQI
12th Aug 2026427 AMAQI
12th Aug 2026428 AMAQI
12th Aug 2026509 AMAQI
12th Aug 20264610 AMAQI
12th Aug 20264811 AMAQI
12th Aug 20265112 PMAQI
12th Aug 2026421 PMAQI
12th Aug 2026522 PMAQI
12th Aug 2026503 PMAQI
12th Aug 2026594 PMAQI
12th Aug 2026575 PMAQI
12th Aug 2026516 PMAQI
12th Aug 2026457 PMAQI
12th Aug 2026438 PMAQI
12th Aug 2026489 PMAQI
12th Aug 20263610 PMAQI
12th Aug 20264611 PMAQI
13th Aug 20264012 AMAQI
13th Aug 2026451 AMAQI
13th Aug 2026462 AMAQI
13th Aug 2026383 AMAQI
13th Aug 2026504 AMAQI
13th Aug 2026535 AMAQI
24°C18/33°C
13th Aug 2026516 AMAQI
13th Aug 2026567 AMAQI
13th Aug 2026528 AMAQI
13th Aug 2026559 AMAQI
13th Aug 20263810 AMAQI
13th Aug 20265011 AMAQI
13th Aug 20263712 PMAQI
13th Aug 2026541 PMAQI
13th Aug 2026382 PMAQI
13th Aug 2026523 PMAQI
13th Aug 2026424 PMAQI
13th Aug 2026345 PMAQI
13th Aug 2026286 PMAQI
13th Aug 2026547 PMAQI
13th Aug 2026538 PMAQI
13th Aug 2026509 PMAQI
13th Aug 20264610 PMAQI
13th Aug 20264811 PMAQI
14th Aug 20265012 AMAQI
14th Aug 2026501 AMAQI
14th Aug 2026462 AMAQI
14th Aug 2026463 AMAQI
14th Aug 2026544 AMAQI
14th Aug 2026515 AMAQI
20°C16/27°C
14th Aug 2026426 AMAQI
6 AM14th Aug 2026507 AMAQI
14th Aug 2026448 AMAQI
14th Aug 2026409 AMAQI
14th Aug 20262510 AMAQI
14th Aug 20264011 AMAQI
14th Aug 20264612 PMAQI
14th Aug 2026421 PMAQI
1 PM14th Aug 2026482 PMAQI
14th Aug 2026463 PMAQI
14th Aug 2026464 PMAQI
14th Aug 2026465 PMAQI
14th Aug 2026466 PMAQI
14th Aug 2026587 PMAQI
14th Aug 2026468 PMAQI
8 PM14th Aug 2026509 PMAQI
14th Aug 20265010 PMAQI
14th Aug 20265011 PMAQI
1 AM
5 AM
19°C14/28°C
Day time
Avg. Highest Time
7 AM - 4 PM
46AQI
10 hours / Day
300 hours / Month
Avg. Lowest Time
6 PM
41AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 AM to 4 PM (Avg. 46), while the lowest AQI was between 6 PM to 6 PM (Avg. 41).
Night time
Avg. Highest Time
9 PM - 11 PM
46AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
4 AM - 5 AM
43AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 PM to 11 PM (Avg. 46), while the lowest AQI was between 4 AM to 5 AM (Avg. 43).
2026 Days Vs Air Quality
Vacaville, California, United States
2026
95%
212
5%
11
Total number of days with different AQI categories in last 226 days in 2026 (139 days remaining)
Good
212 DaysModerate
11 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 95%
Health Risk Level:
Very Low
In 2026, 95% of 226 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 2026
AQI (US)
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 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
36AQI (US)
36AQI (US)
2nd January 2026
29AQI (US)
29AQI (US)
3rd January 2026
22AQI (US)
22AQI (US)
4th January 2026
22AQI (US)
22AQI (US)
5th January 2026
24AQI (US)
24AQI (US)
6th January 2026
26AQI (US)
26AQI (US)
7th January 2026
27AQI (US)
27AQI (US)
8th January 2026
20AQI (US)
20AQI (US)
9th January 2026
22AQI (US)
22AQI (US)
10th January 2026
35AQI (US)
35AQI (US)
11th January 2026
44AQI (US)
44AQI (US)
12th January 2026
43AQI (US)
43AQI (US)
13th January 2026
42AQI (US)
42AQI (US)
14th January 2026
56AQI (US)
56AQI (US)
15th January 2026
62AQI (US)
62AQI (US)
16th January 2026
62AQI (US)
62AQI (US)
17th January 2026
62AQI (US)
62AQI (US)
18th January 2026
61AQI (US)
61AQI (US)
19th January 2026
46AQI (US)
46AQI (US)
20th January 2026
30AQI (US)
30AQI (US)
21st January 2026
29AQI (US)
29AQI (US)
22nd January 2026
46AQI (US)
46AQI (US)
23rd January 2026
49AQI (US)
49AQI (US)
24th January 2026
44AQI (US)
44AQI (US)
25th January 2026
41AQI (US)
41AQI (US)
26th January 2026
44AQI (US)
44AQI (US)
27th January 2026
39AQI (US)
39AQI (US)
28th January 2026
46AQI (US)
46AQI (US)
29th January 2026
52AQI (US)
52AQI (US)
30th January 2026
50AQI (US)
50AQI (US)
31st January 2026
37AQI (US)
37AQI (US)
1st February 2026
42AQI (US)
42AQI (US)
2nd February 2026
46AQI (US)
46AQI (US)
3rd February 2026
46AQI (US)
46AQI (US)
4th February 2026
44AQI (US)
44AQI (US)
5th February 2026
44AQI (US)
44AQI (US)
6th February 2026
41AQI (US)
41AQI (US)
7th February 2026
35AQI (US)
35AQI (US)
8th February 2026
44AQI (US)
44AQI (US)
9th February 2026
42AQI (US)
42AQI (US)
10th February 2026
28AQI (US)
28AQI (US)
11th February 2026
30AQI (US)
30AQI (US)
12th February 2026
42AQI (US)
42AQI (US)
13th February 2026
30AQI (US)
30AQI (US)
14th February 2026
29AQI (US)
29AQI (US)
15th February 2026
29AQI (US)
29AQI (US)
16th February 2026
44AQI (US)
44AQI (US)
17th February 2026
48AQI (US)
48AQI (US)
18th February 2026
42AQI (US)
42AQI (US)
19th February 2026
42AQI (US)
42AQI (US)
20th February 2026
37AQI (US)
37AQI (US)
21st February 2026
30AQI (US)
30AQI (US)
22nd February 2026
30AQI (US)
30AQI (US)
23rd February 2026
23AQI (US)
23AQI (US)
24th February 2026
21AQI (US)
21AQI (US)
25th February 2026
33AQI (US)
33AQI (US)
26th February 2026
27AQI (US)
27AQI (US)
27th February 2026
24AQI (US)
24AQI (US)
28th February 2026
19AQI (US)
19AQI (US)
1st March 2026
30AQI (US)
30AQI (US)
2nd March 2026
46AQI (US)
46AQI (US)
3rd March 2026
17AQI (US)
17AQI (US)
4th March 2026
32AQI (US)
32AQI (US)
5th March 2026
32AQI (US)
32AQI (US)
6th March 2026
24AQI (US)
24AQI (US)
7th March 2026
26AQI (US)
26AQI (US)
8th March 2026
18AQI (US)
18AQI (US)
9th March 2026
17AQI (US)
17AQI (US)
10th March 2026
23AQI (US)
23AQI (US)
11th March 2026
22AQI (US)
22AQI (US)
12th March 2026
21AQI (US)
21AQI (US)
13th March 2026
21AQI (US)
21AQI (US)
14th March 2026
16AQI (US)
16AQI (US)
15th March 2026
18AQI (US)
18AQI (US)
16th March 2026
23AQI (US)
23AQI (US)
17th March 2026
24AQI (US)
24AQI (US)
18th March 2026
24AQI (US)
24AQI (US)
19th March 2026
26AQI (US)
26AQI (US)
20th March 2026
29AQI (US)
29AQI (US)
21st March 2026
24AQI (US)
24AQI (US)
22nd March 2026
16AQI (US)
16AQI (US)
23rd March 2026
21AQI (US)
21AQI (US)
24th March 2026
25AQI (US)
25AQI (US)
25th March 2026
20AQI (US)
20AQI (US)
26th March 2026
26AQI (US)
26AQI (US)
27th March 2026
20AQI (US)
20AQI (US)
28th March 2026
20AQI (US)
20AQI (US)
29th March 2026
18AQI (US)
18AQI (US)
30th March 2026
21AQI (US)
21AQI (US)
31st March 2026
18AQI (US)
18AQI (US)
1st April 2026
26AQI (US)
26AQI (US)
2nd April 2026
23AQI (US)
23AQI (US)
3rd April 2026
20AQI (US)
20AQI (US)
4th April 2026
21AQI (US)
21AQI (US)
5th April 2026
22AQI (US)
22AQI (US)
6th April 2026
26AQI (US)
26AQI (US)
7th April 2026
20AQI (US)
20AQI (US)
8th April 2026
28AQI (US)
28AQI (US)
9th April 2026
29AQI (US)
29AQI (US)
10th April 2026
32AQI (US)
32AQI (US)
11th April 2026
34AQI (US)
34AQI (US)
12th April 2026
28AQI (US)
28AQI (US)
13th April 2026
32AQI (US)
32AQI (US)
14th April 2026
26AQI (US)
26AQI (US)
15th April 2026
18AQI (US)
18AQI (US)
16th April 2026
21AQI (US)
21AQI (US)
17th April 2026
18th April 2026
16AQI (US)
16AQI (US)
19th April 2026
20AQI (US)
20AQI (US)
20th April 2026
20AQI (US)
20AQI (US)
21st April 2026
29AQI (US)
29AQI (US)
22nd April 2026
23rd April 2026
26AQI (US)
26AQI (US)
24th April 2026
18AQI (US)
18AQI (US)
25th April 2026
14AQI (US)
14AQI (US)
26th April 2026
14AQI (US)
14AQI (US)
27th April 2026
14AQI (US)
14AQI (US)
28th April 2026
16AQI (US)
16AQI (US)
29th April 2026
17AQI (US)
17AQI (US)
30th April 2026
20AQI (US)
20AQI (US)
1st May 2026
19AQI (US)
19AQI (US)
2nd May 2026
16AQI (US)
16AQI (US)
3rd May 2026
16AQI (US)
16AQI (US)
4th May 2026
28AQI (US)
28AQI (US)
5th May 2026
30AQI (US)
30AQI (US)
6th May 2026
28AQI (US)
28AQI (US)
7th May 2026
17AQI (US)
17AQI (US)
8th May 2026
20AQI (US)
20AQI (US)
9th May 2026
10th May 2026
20AQI (US)
20AQI (US)
11th May 2026
20AQI (US)
20AQI (US)
12th May 2026
23AQI (US)
23AQI (US)
13th May 2026
18AQI (US)
18AQI (US)
14th May 2026
20AQI (US)
20AQI (US)
15th May 2026
38AQI (US)
38AQI (US)
16th May 2026
50AQI (US)
50AQI (US)
17th May 2026
57AQI (US)
57AQI (US)
18th May 2026
54AQI (US)
54AQI (US)
19th May 2026
51AQI (US)
51AQI (US)
20th May 2026
48AQI (US)
48AQI (US)
21st May 2026
40AQI (US)
40AQI (US)
22nd May 2026
40AQI (US)
40AQI (US)
23rd May 2026
38AQI (US)
38AQI (US)
24th May 2026
42AQI (US)
42AQI (US)
25th May 2026
42AQI (US)
42AQI (US)
26th May 2026
28AQI (US)
28AQI (US)
27th May 2026
18AQI (US)
18AQI (US)
28th May 2026
21AQI (US)
21AQI (US)
29th May 2026
15AQI (US)
15AQI (US)
30th May 2026
20AQI (US)
20AQI (US)
31st May 2026
17AQI (US)
17AQI (US)
1st June 2026
17AQI (US)
17AQI (US)
2nd June 2026
21AQI (US)
21AQI (US)
3rd June 2026
22AQI (US)
22AQI (US)
4th June 2026
22AQI (US)
22AQI (US)
5th June 2026
26AQI (US)
26AQI (US)
6th June 2026
22AQI (US)
22AQI (US)
7th June 2026
15AQI (US)
15AQI (US)
8th June 2026
19AQI (US)
19AQI (US)
9th June 2026
21AQI (US)
21AQI (US)
10th June 2026
16AQI (US)
16AQI (US)
11th June 2026
16AQI (US)
16AQI (US)
12th June 2026
18AQI (US)
18AQI (US)
13th June 2026
15AQI (US)
15AQI (US)
14th June 2026
12AQI (US)
12AQI (US)
15th June 2026
17AQI (US)
17AQI (US)
16th June 2026
18AQI (US)
18AQI (US)
17th June 2026
18AQI (US)
18AQI (US)
18th June 2026
20AQI (US)
20AQI (US)
19th June 2026
18AQI (US)
18AQI (US)
20th June 2026
20AQI (US)
20AQI (US)
21st June 2026
17AQI (US)
17AQI (US)
22nd June 2026
14AQI (US)
14AQI (US)
23rd June 2026
17AQI (US)
17AQI (US)
24th June 2026
16AQI (US)
16AQI (US)
25th June 2026
18AQI (US)
18AQI (US)
26th June 2026
14AQI (US)
14AQI (US)
27th June 2026
27AQI (US)
27AQI (US)
28th June 2026
18AQI (US)
18AQI (US)
29th June 2026
17AQI (US)
17AQI (US)
30th June 2026
23AQI (US)
23AQI (US)
1st July 2026
24AQI (US)
24AQI (US)
2nd July 2026
21AQI (US)
21AQI (US)
3rd July 2026
14AQI (US)
14AQI (US)
4th July 2026
14AQI (US)
14AQI (US)
5th July 2026
23AQI (US)
23AQI (US)
6th July 2026
22AQI (US)
22AQI (US)
7th July 2026
21AQI (US)
21AQI (US)
8th July 2026
16AQI (US)
16AQI (US)
9th July 2026
15AQI (US)
15AQI (US)
10th July 2026
21AQI (US)
21AQI (US)
11th July 2026
12AQI (US)
12AQI (US)
12th July 2026
16AQI (US)
16AQI (US)
13th July 2026
19AQI (US)
19AQI (US)
14th July 2026
16AQI (US)
16AQI (US)
15th July 2026
18AQI (US)
18AQI (US)
16th July 2026
16AQI (US)
16AQI (US)
17th July 2026
44AQI (US)
44AQI (US)
18th July 2026
46AQI (US)
46AQI (US)
19th July 2026
42AQI (US)
42AQI (US)
20th July 2026
47AQI (US)
47AQI (US)
21st July 2026
41AQI (US)
41AQI (US)
22nd July 2026
42AQI (US)
42AQI (US)
23rd July 2026
35AQI (US)
35AQI (US)
24th July 2026
50AQI (US)
50AQI (US)
25th July 2026
49AQI (US)
49AQI (US)
26th July 2026
44AQI (US)
44AQI (US)
27th July 2026
44AQI (US)
44AQI (US)
28th July 2026
46AQI (US)
46AQI (US)
29th July 2026
45AQI (US)
45AQI (US)
30th July 2026
44AQI (US)
44AQI (US)
31st July 2026
58AQI (US)
58AQI (US)
1st August 2026
45AQI (US)
45AQI (US)
2nd August 2026
48AQI (US)
48AQI (US)
3rd August 2026
52AQI (US)
52AQI (US)
4th August 2026
48AQI (US)
48AQI (US)
5th August 2026
46AQI (US)
46AQI (US)
6th August 2026
45AQI (US)
45AQI (US)
7th August 2026
44AQI (US)
44AQI (US)
8th August 2026
46AQI (US)
46AQI (US)
9th August 2026
44AQI (US)
44AQI (US)
10th August 2026
48AQI (US)
48AQI (US)
11th August 2026
44AQI (US)
44AQI (US)
12th August 2026
44AQI (US)
44AQI (US)
13th August 2026
46AQI (US)
46AQI (US)
14th August 2026
46AQI (US)
46AQI (US)
15th August 2026
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026
40AQI (US)
35AQI (US)
23AQI (US)
23AQI (US)
30AQI (US)
18AQI (US)
31AQI (US)
46AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202630AQI (US)
25
6
28
31
28
27
3
30
30
1
13
1
212
11
Highest AQI (US) recorded in
August46AQI (US)
Lowest AQI (US) recorded in
June18AQI (US)
202531AQI (US)
29
2
28
31
30
31
30
31
30
1
30
23
8
26
4
24
7
343
22
Highest AQI (US) recorded in
October44AQI (US)
Lowest AQI (US) recorded in
July22AQI (US)
202422AQI (US)
31
29
29
2
30
31
29
29
2
31
30
31
27
3
25
6
352
13
Highest AQI (US) recorded in
December38AQI (US)
Lowest AQI (US) recorded in
May11AQI (US)
202328AQI (US)
30
1
28
31
30
30
1
29
1
31
29
2
26
4
31
28
1
31
354
10
Highest AQI (US) recorded in
February34AQI (US)
Lowest AQI (US) recorded in
October16AQI (US)
202232AQI (US)
17
13
20
2
31
25
31
30
19
1
1
27
2
31
28
2
24
7
284
27
Highest AQI (US) recorded in
January49AQI (US)
Lowest AQI (US) recorded in
July25AQI (US)
202136AQI (US)
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 (US) recorded in
August56AQI (US)
Lowest AQI (US) recorded in
June26AQI (US)
202044AQI (US)
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 (US) recorded in
September80AQI (US)
Lowest AQI (US) recorded in
July19AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2020(Avg.)
44AQI (US)Least Polluted Year Recorded
2024(Avg.)
22AQI (US)Vacaville's annual 2026 AQI (US) (30) shows an average percentage change of -2.4% (improved AQI (US)) compared to previous years: 2020 (44), 2021 (36), 2022 (32), 2023 (28), 2024 (22), 2025 (31).
