Chula Vista, 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
Chula Vista, California, United States
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
29th Aug 2023
102AQILowest AQI recorded on
20th Aug 2023
24AQISame Day Analysis (15th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 40 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.
Day & Night AQI Trend: 14th Aug - 15th Aug 2026
Chula Vista, California, United States
AQI
Day
Night
.
6 AM14th Aug 2026
7 PM
5 AM15th Aug 2026
Day time
Avg. Highest Time
2PM14th Aug
51AQI
Avg. Lowest Time
6PM14th Aug
13AQI
Night time
Avg. Highest Time
11PM14th Aug
48AQI
Avg. Lowest Time
8PM14th Aug
12AQI
In the last 24 hours,
Chula Vista's AQI reached its highest point of 51 at 2 PM during the Day, while the lowest point, 12, was recorded at 8 PM during the Night between 14th Aug and 15th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Chula Vista, California, United States
JulAug
17th - 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 - 15th15th
Day
Night
17th Jul 2026526 AMAQI
17th Jul 2026537 AMAQI
17th Jul 2026548 AMAQI
17th Jul 2026539 AMAQI
17th Jul 20265610 AMAQI
17th Jul 20265811 AMAQI
17th Jul 20265812 PMAQI
17th Jul 2026601 PMAQI
17th Jul 2026582 PMAQI
17th Jul 2026583 PMAQI
17th Jul 2026594 PMAQI
17th Jul 2026585 PMAQI
17th Jul 2026576 PMAQI
17th Jul 2026567 PMAQI
17th Jul 2026568 PMAQI
17th Jul 2026559 PMAQI
17th Jul 20265610 PMAQI
17th Jul 20265611 PMAQI
18th Jul 20265612 AMAQI
18th Jul 2026561 AMAQI
18th Jul 2026562 AMAQI
18th Jul 2026553 AMAQI
18th Jul 2026544 AMAQI
18th Jul 2026585 AMAQI
25°C19/33°C
18th Jul 2026546 AMAQI
18th Jul 2026547 AMAQI
18th Jul 2026548 AMAQI
18th Jul 2026549 AMAQI
18th Jul 20265410 AMAQI
18th Jul 20265311 AMAQI
18th Jul 20265412 PMAQI
18th Jul 2026541 PMAQI
18th Jul 2026522 PMAQI
18th Jul 2026523 PMAQI
18th Jul 2026484 PMAQI
18th Jul 2026475 PMAQI
18th Jul 2026466 PMAQI
18th Jul 2026427 PMAQI
18th Jul 2026468 PMAQI
18th Jul 2026439 PMAQI
18th Jul 20264210 PMAQI
18th Jul 20264711 PMAQI
19th Jul 20264412 AMAQI
19th Jul 2026421 AMAQI
19th Jul 2026442 AMAQI
19th Jul 2026443 AMAQI
19th Jul 2026484 AMAQI
19th Jul 2026495 AMAQI
23°C19/31°C
19th Jul 2026506 AMAQI
19th Jul 2026527 AMAQI
19th Jul 2026528 AMAQI
19th Jul 2026549 AMAQI
19th Jul 20265610 AMAQI
19th Jul 20265411 AMAQI
19th Jul 20265312 PMAQI
19th Jul 2026521 PMAQI
19th Jul 2026532 PMAQI
19th Jul 2026503 PMAQI
19th Jul 2026504 PMAQI
19th Jul 2026445 PMAQI
19th Jul 2026446 PMAQI
19th Jul 2026427 PMAQI
19th Jul 2026428 PMAQI
19th Jul 2026459 PMAQI
19th Jul 20264510 PMAQI
19th Jul 20264211 PMAQI
20th Jul 20264012 AMAQI
20th Jul 2026431 AMAQI
20th Jul 2026432 AMAQI
20th Jul 2026453 AMAQI
20th Jul 2026434 AMAQI
20th Jul 2026455 AMAQI
23°C18/30°C
20th Jul 2026436 AMAQI
20th Jul 2026477 AMAQI
20th Jul 2026468 AMAQI
20th Jul 2026489 AMAQI
20th Jul 20264810 AMAQI
20th Jul 20265011 AMAQI
20th Jul 20265312 PMAQI
20th Jul 2026521 PMAQI
20th Jul 2026522 PMAQI
20th Jul 2026463 PMAQI
20th Jul 2026504 PMAQI
20th Jul 2026485 PMAQI
20th Jul 2026476 PMAQI
20th Jul 2026497 PMAQI
20th Jul 2026439 PMAQI
20th Jul 20264410 PMAQI
20th Jul 20264111 PMAQI
21st Jul 20264012 AMAQI
21st Jul 2026411 AMAQI
21st Jul 2026402 AMAQI
21st Jul 2026463 AMAQI
21st Jul 2026464 AMAQI
21st Jul 2026485 AMAQI
24°C18/32°C
21st Jul 2026476 AMAQI
21st Jul 2026467 AMAQI
21st Jul 2026488 AMAQI
21st Jul 2026549 AMAQI
21st Jul 20265610 AMAQI
21st Jul 20265611 AMAQI
21st Jul 20265612 PMAQI
21st Jul 2026461 PMAQI
21st Jul 2026402 PMAQI
21st Jul 2026443 PMAQI
21st Jul 2026454 PMAQI
21st Jul 2026325 PMAQI
21st Jul 2026226 PMAQI
21st Jul 2026467 PMAQI
21st Jul 2026448 PMAQI
21st Jul 2026469 PMAQI
21st Jul 20265810 PMAQI
21st Jul 20265011 PMAQI
22nd Jul 20265112 AMAQI
22nd Jul 2026451 AMAQI
22nd Jul 2026502 AMAQI
22nd Jul 2026463 AMAQI
22nd Jul 2026504 AMAQI
22nd Jul 2026505 AMAQI
25°C18/33°C
22nd Jul 2026386 AMAQI
22nd Jul 2026317 AMAQI
22nd Jul 2026488 AMAQI
22nd Jul 2026509 AMAQI
22nd Jul 20264610 AMAQI
22nd Jul 20264611 AMAQI
22nd Jul 20265012 PMAQI
22nd Jul 2026431 PMAQI
22nd Jul 2026332 PMAQI
22nd Jul 2026383 PMAQI
22nd Jul 2026564 PMAQI
22nd Jul 2026305 PMAQI
22nd Jul 2026396 PMAQI
22nd Jul 2026487 PMAQI
22nd Jul 2026468 PMAQI
22nd Jul 2026469 PMAQI
22nd Jul 20264610 PMAQI
22nd Jul 20265011 PMAQI
23rd Jul 20264612 AMAQI
23rd Jul 2026381 AMAQI
23rd Jul 2026482 AMAQI
23rd Jul 2026463 AMAQI
23rd Jul 2026464 AMAQI
23rd Jul 2026425 AMAQI
24°C21/31°C
23rd Jul 2026486 AMAQI
23rd Jul 2026507 AMAQI
23rd Jul 2026438 AMAQI
23rd Jul 2026459 AMAQI
23rd Jul 20264110 AMAQI
23rd Jul 20265111 AMAQI
23rd Jul 20264512 PMAQI
23rd Jul 2026461 PMAQI
23rd Jul 2026452 PMAQI
23rd Jul 2026483 PMAQI
23rd Jul 2026484 PMAQI
23rd Jul 2026475 PMAQI
23rd Jul 2026476 PMAQI
23rd Jul 2026457 PMAQI
23rd Jul 2026468 PMAQI
23rd Jul 2026459 PMAQI
23rd Jul 20264610 PMAQI
23rd Jul 20264311 PMAQI
24th Jul 20264412 AMAQI
24th Jul 2026421 AMAQI
24th Jul 2026442 AMAQI
24th Jul 2026443 AMAQI
24th Jul 2026484 AMAQI
24th Jul 2026495 AMAQI
24°C19/33°C
24th Jul 2026496 AMAQI
24th Jul 2026507 AMAQI
24th Jul 2026498 AMAQI
24th Jul 2026529 AMAQI
24th Jul 20265410 AMAQI
24th Jul 20265411 AMAQI
24th Jul 20265412 PMAQI
24th Jul 2026561 PMAQI
24th Jul 2026542 PMAQI
24th Jul 2026553 PMAQI
24th Jul 2026544 PMAQI
24th Jul 2026525 PMAQI
24th Jul 2026486 PMAQI
24th Jul 2026467 PMAQI
24th Jul 2026458 PMAQI
24th Jul 2026459 PMAQI
24th Jul 20264310 PMAQI
24th Jul 20264511 PMAQI
25th Jul 20264712 AMAQI
25th Jul 2026461 AMAQI
25th Jul 2026472 AMAQI
25th Jul 2026463 AMAQI
25th Jul 2026514 AMAQI
25th Jul 2026525 AMAQI
24°C19/31°C
25th Jul 2026526 AMAQI
25th Jul 2026567 AMAQI
25th Jul 2026588 AMAQI
25th Jul 2026589 AMAQI
25th Jul 20266110 AMAQI
25th Jul 20266211 AMAQI
25th Jul 20266212 PMAQI
25th Jul 2026621 PMAQI
25th Jul 2026582 PMAQI
25th Jul 2026563 PMAQI
25th Jul 2026534 PMAQI
25th Jul 2026505 PMAQI
25th Jul 2026486 PMAQI
25th Jul 2026487 PMAQI
25th Jul 2026508 PMAQI
25th Jul 2026469 PMAQI
25th Jul 20264610 PMAQI
25th Jul 20264511 PMAQI
26th Jul 20264712 AMAQI
26th Jul 2026451 AMAQI
26th Jul 2026482 AMAQI
26th Jul 2026463 AMAQI
26th Jul 2026464 AMAQI
26th Jul 2026495 AMAQI
24°C18/32°C
26th Jul 2026516 AMAQI
26th Jul 2026527 AMAQI
26th Jul 2026528 AMAQI
26th Jul 2026529 AMAQI
26th Jul 20265210 AMAQI
26th Jul 20265211 AMAQI
26th Jul 20265212 PMAQI
26th Jul 2026521 PMAQI
26th Jul 2026522 PMAQI
26th Jul 2026523 PMAQI
26th Jul 2026524 PMAQI
26th Jul 2026515 PMAQI
26th Jul 2026466 PMAQI
26th Jul 2026477 PMAQI
26th Jul 2026478 PMAQI
26th Jul 2026459 PMAQI
26th Jul 20264310 PMAQI
26th Jul 20264611 PMAQI
27th Jul 20264712 AMAQI
27th Jul 2026471 AMAQI
27th Jul 2026462 AMAQI
27th Jul 2026483 AMAQI
27th Jul 2026494 AMAQI
27th Jul 2026525 AMAQI
25°C19/35°C
27th Jul 2026526 AMAQI
27th Jul 2026527 AMAQI
27th Jul 2026548 AMAQI
27th Jul 2026549 AMAQI
27th Jul 20265410 AMAQI
27th Jul 20265611 AMAQI
27th Jul 20265612 PMAQI
27th Jul 2026581 PMAQI
27th Jul 2026562 PMAQI
27th Jul 2026563 PMAQI
27th Jul 2026544 PMAQI
27th Jul 2026525 PMAQI
27th Jul 2026486 PMAQI
27th Jul 2026457 PMAQI
27th Jul 2026448 PMAQI
27th Jul 2026439 PMAQI
27th Jul 20264310 PMAQI
27th Jul 20264311 PMAQI
28th Jul 20264312 AMAQI
28th Jul 2026451 AMAQI
28th Jul 2026462 AMAQI
28th Jul 2026483 AMAQI
28th Jul 2026484 AMAQI
28th Jul 2026495 AMAQI
24°C20/32°C
28th Jul 2026506 AMAQI
28th Jul 2026527 AMAQI
28th Jul 2026528 AMAQI
28th Jul 2026589 AMAQI
28th Jul 20266010 AMAQI
28th Jul 20266611 AMAQI
28th Jul 20266012 PMAQI
28th Jul 2026571 PMAQI
28th Jul 2026532 PMAQI
28th Jul 2026503 PMAQI
28th Jul 2026484 PMAQI
28th Jul 2026465 PMAQI
28th Jul 2026476 PMAQI
28th Jul 2026447 PMAQI
28th Jul 2026468 PMAQI
28th Jul 2026469 PMAQI
28th Jul 20264410 PMAQI
28th Jul 20264711 PMAQI
29th Jul 20264512 AMAQI
29th Jul 2026481 AMAQI
29th Jul 2026512 AMAQI
29th Jul 2026493 AMAQI
29th Jul 2026544 AMAQI
29th Jul 2026545 AMAQI
23°C19/31°C
29th Jul 2026566 AMAQI
29th Jul 2026567 AMAQI
29th Jul 2026588 AMAQI
29th Jul 2026579 AMAQI
29th Jul 20265810 AMAQI
29th Jul 20266011 AMAQI
29th Jul 20265812 PMAQI
29th Jul 2026561 PMAQI
29th Jul 2026572 PMAQI
29th Jul 2026563 PMAQI
29th Jul 2026534 PMAQI
29th Jul 2026485 PMAQI
29th Jul 2026436 PMAQI
29th Jul 2026477 PMAQI
29th Jul 2026488 PMAQI
29th Jul 2026449 PMAQI
29th Jul 20264210 PMAQI
29th Jul 20264311 PMAQI
30th Jul 20264512 AMAQI
30th Jul 2026471 AMAQI
30th Jul 2026482 AMAQI
30th Jul 2026493 AMAQI
30th Jul 2026514 AMAQI
30th Jul 2026515 AMAQI
23°C18/30°C
30th Jul 2026496 AMAQI
30th Jul 2026467 AMAQI
30th Jul 2026518 AMAQI
30th Jul 2026529 AMAQI
30th Jul 20265410 AMAQI
30th Jul 20265511 AMAQI
30th Jul 20265412 PMAQI
30th Jul 2026551 PMAQI
30th Jul 2026542 PMAQI
30th Jul 2026543 PMAQI
30th Jul 2026484 PMAQI
30th Jul 2026485 PMAQI
30th Jul 2026426 PMAQI
30th Jul 2026427 PMAQI
30th Jul 2026428 PMAQI
30th Jul 2026429 PMAQI
30th Jul 20264010 PMAQI
30th Jul 20263911 PMAQI
31st Jul 20264012 AMAQI
31st Jul 2026421 AMAQI
31st Jul 2026362 AMAQI
31st Jul 2026413 AMAQI
31st Jul 2026414 AMAQI
31st Jul 2026405 AMAQI
22°C17/31°C
31st Jul 2026426 AMAQI
31st Jul 2026437 AMAQI
31st Jul 2026488 AMAQI
31st Jul 2026519 AMAQI
31st Jul 20264710 AMAQI
31st Jul 20264811 AMAQI
31st Jul 20265212 PMAQI
31st Jul 2026531 PMAQI
31st Jul 2026502 PMAQI
31st Jul 2026503 PMAQI
31st Jul 2026484 PMAQI
31st Jul 2026485 PMAQI
31st Jul 2026456 PMAQI
31st Jul 2026457 PMAQI
31st Jul 2026458 PMAQI
31st Jul 2026469 PMAQI
31st Jul 20264810 PMAQI
31st Jul 20264611 PMAQI
1st Aug 20264912 AMAQI
1st Aug 2026471 AMAQI
1st Aug 2026482 AMAQI
1st Aug 2026503 AMAQI
1st Aug 2026524 AMAQI
1st Aug 2026515 AMAQI
23°C16/31°C
1st Aug 2026526 AMAQI
1st Aug 2026527 AMAQI
1st Aug 2026518 AMAQI
1st Aug 2026549 AMAQI
1st Aug 20265610 AMAQI
1st Aug 20266011 AMAQI
1st Aug 20265812 PMAQI
1st Aug 2026541 PMAQI
1st Aug 2026542 PMAQI
1st Aug 2026503 PMAQI
1st Aug 2026484 PMAQI
1st Aug 2026515 PMAQI
1st Aug 2026516 PMAQI
1st Aug 2026487 PMAQI
1st Aug 2026468 PMAQI
1st Aug 2026489 PMAQI
1st Aug 20264510 PMAQI
1st Aug 20264711 PMAQI
2nd Aug 20264712 AMAQI
2nd Aug 2026461 AMAQI
2nd Aug 2026502 AMAQI
2nd Aug 2026483 AMAQI
2nd Aug 2026514 AMAQI
2nd Aug 2026535 AMAQI
24°C18/32°C
2nd Aug 2026556 AMAQI
2nd Aug 2026577 AMAQI
2nd Aug 2026588 AMAQI
2nd Aug 2026579 AMAQI
2nd Aug 20265810 AMAQI
2nd Aug 20265911 AMAQI
2nd Aug 20266112 PMAQI
2nd Aug 2026601 PMAQI
2nd Aug 2026592 PMAQI
2nd Aug 2026563 PMAQI
2nd Aug 2026534 PMAQI
2nd Aug 2026525 PMAQI
2nd Aug 2026506 PMAQI
2nd Aug 2026487 PMAQI
2nd Aug 2026508 PMAQI
2nd Aug 2026489 PMAQI
2nd Aug 20264710 PMAQI
2nd Aug 20264511 PMAQI
3rd Aug 20264512 AMAQI
3rd Aug 2026451 AMAQI
3rd Aug 2026452 AMAQI
3rd Aug 2026473 AMAQI
3rd Aug 2026454 AMAQI
3rd Aug 2026455 AMAQI
24°C19/33°C
3rd Aug 2026476 AMAQI
3rd Aug 2026487 AMAQI
3rd Aug 2026508 AMAQI
3rd Aug 2026509 AMAQI
3rd Aug 20265610 AMAQI
3rd Aug 20265611 AMAQI
3rd Aug 20265712 PMAQI
3rd Aug 2026571 PMAQI
3rd Aug 2026542 PMAQI
3rd Aug 2026543 PMAQI
3rd Aug 2026514 PMAQI
3rd Aug 2026525 PMAQI
3rd Aug 2026516 PMAQI
3rd Aug 2026487 PMAQI
3rd Aug 2026488 PMAQI
3rd Aug 2026489 PMAQI
3rd Aug 20264910 PMAQI
3rd Aug 20265211 PMAQI
4th Aug 20264812 AMAQI
4th Aug 2026501 AMAQI
4th Aug 2026502 AMAQI
4th Aug 2026513 AMAQI
4th Aug 2026514 AMAQI
4th Aug 2026535 AMAQI
23°C18/31°C
4th Aug 2026556 AMAQI
4th Aug 2026567 AMAQI
4th Aug 2026578 AMAQI
4th Aug 2026609 AMAQI
4th Aug 20266610 AMAQI
4th Aug 20266311 AMAQI
4th Aug 20266412 PMAQI
4th Aug 2026611 PMAQI
4th Aug 2026602 PMAQI
4th Aug 2026563 PMAQI
4th Aug 2026524 PMAQI
4th Aug 2026505 PMAQI
4th Aug 2026506 PMAQI
4th Aug 2026477 PMAQI
4th Aug 2026468 PMAQI
4th Aug 2026449 PMAQI
4th Aug 20264510 PMAQI
4th Aug 20264511 PMAQI
5th Aug 20264812 AMAQI
5th Aug 2026451 AMAQI
5th Aug 2026462 AMAQI
5th Aug 2026433 AMAQI
5th Aug 2026454 AMAQI
5th Aug 2026465 AMAQI
23°C18/32°C
5th Aug 2026496 AMAQI
5th Aug 2026517 AMAQI
5th Aug 2026508 AMAQI
5th Aug 2026549 AMAQI
5th Aug 20265810 AMAQI
5th Aug 20266011 AMAQI
5th Aug 20266212 PMAQI
5th Aug 2026591 PMAQI
5th Aug 2026542 PMAQI
5th Aug 2026523 PMAQI
5th Aug 2026504 PMAQI
5th Aug 2026495 PMAQI
5th Aug 2026446 PMAQI
5th Aug 2026447 PMAQI
5th Aug 2026448 PMAQI
5th Aug 2026429 PMAQI
5th Aug 20264210 PMAQI
5th Aug 20264211 PMAQI
6th Aug 20264412 AMAQI
6th Aug 2026421 AMAQI
6th Aug 2026422 AMAQI
6th Aug 2026433 AMAQI
6th Aug 2026434 AMAQI
6th Aug 2026415 AMAQI
23°C19/31°C
6th Aug 2026396 AMAQI
6th Aug 2026417 AMAQI
6th Aug 2026478 AMAQI
6th Aug 2026439 AMAQI
6th Aug 20264510 AMAQI
6th Aug 20264611 AMAQI
6th Aug 20264912 PMAQI
6th Aug 2026501 PMAQI
6th Aug 2026502 PMAQI
6th Aug 2026523 PMAQI
6th Aug 2026484 PMAQI
6th Aug 2026475 PMAQI
6th Aug 2026456 PMAQI
6th Aug 2026467 PMAQI
6th Aug 2026438 PMAQI
6th Aug 2026429 PMAQI
6th Aug 20265410 PMAQI
6th Aug 20265211 PMAQI
7th Aug 20264312 AMAQI
7th Aug 2026501 AMAQI
7th Aug 2026442 AMAQI
7th Aug 2026413 AMAQI
7th Aug 2026424 AMAQI
7th Aug 2026415 AMAQI
24°C18/33°C
7th Aug 2026396 AMAQI
7th Aug 2026427 AMAQI
7th Aug 2026438 AMAQI
7th Aug 2026439 AMAQI
7th Aug 20264410 AMAQI
7th Aug 20264711 AMAQI
7th Aug 20264612 PMAQI
7th Aug 2026451 PMAQI
7th Aug 2026482 PMAQI
7th Aug 2026443 PMAQI
7th Aug 2026424 PMAQI
7th Aug 2026455 PMAQI
7th Aug 2026466 PMAQI
7th Aug 2026457 PMAQI
7th Aug 2026468 PMAQI
7th Aug 2026459 PMAQI
7th Aug 20264610 PMAQI
7th Aug 20264511 PMAQI
8th Aug 20264412 AMAQI
8th Aug 2026411 AMAQI
8th Aug 2026472 AMAQI
8th Aug 2026423 AMAQI
8th Aug 2026444 AMAQI
8th Aug 2026435 AMAQI
24°C19/32°C
8th Aug 2026476 AMAQI
8th Aug 2026447 AMAQI
8th Aug 2026488 AMAQI
8th Aug 2026499 AMAQI
8th Aug 20264410 AMAQI
8th Aug 20264611 AMAQI
8th Aug 20264712 PMAQI
8th Aug 2026481 PMAQI
8th Aug 2026452 PMAQI
8th Aug 2026423 PMAQI
8th Aug 2026434 PMAQI
8th Aug 2026455 PMAQI
8th Aug 2026456 PMAQI
8th Aug 2026477 PMAQI
8th Aug 2026468 PMAQI
8th Aug 2026459 PMAQI
8th Aug 20264510 PMAQI
8th Aug 20264411 PMAQI
9th Aug 20264212 AMAQI
9th Aug 2026431 AMAQI
9th Aug 2026422 AMAQI
9th Aug 2026423 AMAQI
9th Aug 2026434 AMAQI
9th Aug 2026455 AMAQI
24°C18/32°C
9th Aug 2026466 AMAQI
9th Aug 2026467 AMAQI
9th Aug 2026518 AMAQI
9th Aug 2026529 AMAQI
9th Aug 20265210 AMAQI
9th Aug 20265311 AMAQI
9th Aug 20265712 PMAQI
9th Aug 2026541 PMAQI
9th Aug 2026522 PMAQI
9th Aug 2026503 PMAQI
9th Aug 2026484 PMAQI
9th Aug 2026505 PMAQI
9th Aug 2026486 PMAQI
9th Aug 2026507 PMAQI
9th Aug 2026498 PMAQI
9th Aug 2026489 PMAQI
9th Aug 20264810 PMAQI
9th Aug 20264611 PMAQI
10th Aug 20264512 AMAQI
10th Aug 2026481 AMAQI
10th Aug 2026472 AMAQI
10th Aug 2026453 AMAQI
10th Aug 2026524 AMAQI
10th Aug 2026505 AMAQI
24°C19/32°C
10th Aug 2026506 AMAQI
10th Aug 2026527 AMAQI
10th Aug 2026528 AMAQI
10th Aug 2026529 AMAQI
10th Aug 20265710 AMAQI
10th Aug 20266011 AMAQI
10th Aug 20265612 PMAQI
10th Aug 2026551 PMAQI
10th Aug 2026522 PMAQI
10th Aug 2026523 PMAQI
10th Aug 2026484 PMAQI
10th Aug 2026445 PMAQI
10th Aug 2026426 PMAQI
10th Aug 2026507 PMAQI
10th Aug 2026458 PMAQI
10th Aug 2026409 PMAQI
10th Aug 20262510 PMAQI
10th Aug 20264411 PMAQI
11th Aug 20264012 AMAQI
11th Aug 2026301 AMAQI
11th Aug 2026442 AMAQI
11th Aug 2026383 AMAQI
11th Aug 2026494 AMAQI
11th Aug 2026425 AMAQI
24°C20/31°C
11th Aug 2026466 AMAQI
11th Aug 2026487 AMAQI
11th Aug 2026438 AMAQI
11th Aug 2026469 AMAQI
11th Aug 20266310 AMAQI
11th Aug 20265711 AMAQI
11th Aug 20266212 PMAQI
11th Aug 2026551 PMAQI
11th Aug 2026532 PMAQI
11th Aug 2026523 PMAQI
11th Aug 2026464 PMAQI
11th Aug 2026425 PMAQI
11th Aug 2026356 PMAQI
11th Aug 2026357 PMAQI
11th Aug 2026288 PMAQI
11th Aug 2026399 PMAQI
11th Aug 20264010 PMAQI
11th Aug 20264011 PMAQI
12th Aug 20263412 AMAQI
12th Aug 2026441 AMAQI
12th Aug 2026292 AMAQI
12th Aug 2026403 AMAQI
12th Aug 2026454 AMAQI
12th Aug 2026385 AMAQI
24°C20/32°C
12th Aug 2026326 AMAQI
12th Aug 2026427 AMAQI
12th Aug 2026348 AMAQI
12th Aug 2026379 AMAQI
12th Aug 20265010 AMAQI
12th Aug 20265411 AMAQI
12th Aug 20265112 PMAQI
12th Aug 2026531 PMAQI
12th Aug 2026492 PMAQI
12th Aug 2026243 PMAQI
12th Aug 2026384 PMAQI
12th Aug 2026285 PMAQI
12th Aug 2026596 PMAQI
12th Aug 2026567 PMAQI
12th Aug 2026428 PMAQI
12th Aug 2026439 PMAQI
12th Aug 20263710 PMAQI
12th Aug 20264311 PMAQI
13th Aug 20263012 AMAQI
13th Aug 2026461 AMAQI
13th Aug 2026422 AMAQI
13th Aug 2026343 AMAQI
13th Aug 2026424 AMAQI
13th Aug 2026425 AMAQI
23°C20/30°C
13th Aug 2026386 AMAQI
13th Aug 2026417 AMAQI
13th Aug 2026408 AMAQI
13th Aug 2026489 AMAQI
13th Aug 20263810 AMAQI
13th Aug 20264711 AMAQI
13th Aug 20264012 PMAQI
13th Aug 2026371 PMAQI
13th Aug 2026372 PMAQI
13th Aug 2026383 PMAQI
13th Aug 2026384 PMAQI
13th Aug 2026355 PMAQI
13th Aug 2026366 PMAQI
13th Aug 2026427 PMAQI
13th Aug 2026428 PMAQI
13th Aug 2026339 PMAQI
13th Aug 20264610 PMAQI
13th Aug 20261011 PMAQI
14th Aug 20261112 AMAQI
14th Aug 2026171 AMAQI
14th Aug 2026222 AMAQI
14th Aug 2026253 AMAQI
14th Aug 2026254 AMAQI
14th Aug 2026375 AMAQI
22°C19/29°C
14th Aug 2026406 AMAQI
14th Aug 2026357 AMAQI
14th Aug 2026368 AMAQI
14th Aug 2026239 AMAQI
14th Aug 20263410 AMAQI
14th Aug 20263211 AMAQI
14th Aug 20264212 PMAQI
14th Aug 2026461 PMAQI
14th Aug 2026512 PMAQI
14th Aug 2026403 PMAQI
14th Aug 2026364 PMAQI
14th Aug 2026385 PMAQI
14th Aug 2026136 PMAQI
14th Aug 2026427 PMAQI
14th Aug 2026128 PMAQI
14th Aug 2026449 PMAQI
14th Aug 20263710 PMAQI
14th Aug 20264811 PMAQI
15th Aug 20261812 AMAQI
15th Aug 2026221 AMAQI
15th Aug 2026272 AMAQI
15th Aug 2026343 AMAQI
15th Aug 2026444 AMAQI
15th Aug 2026325 AMAQI
22°C18/27°C
15th Aug 2026386 AMAQI
6 AM15th Aug 2026297 AMAQI
15th Aug 2026228 AMAQI
15th Aug 2026429 AMAQI
15th Aug 20263410 AMAQI
15th Aug 20264711 AMAQI
15th Aug 20264612 PMAQI
12 PM15th Aug 2026461 PMAQI
15th Aug 2026502 PMAQI
15th Aug 2026513 PMAQI
15th Aug 2026424 PMAQI
15th Aug 2026425 PMAQI
15th Aug 2026476 PMAQI
15th Aug 2026487 PMAQI
7 PM15th Aug 2026498 PMAQI
15th Aug 2026529 PMAQI
15th Aug 20264710 PMAQI
15th Aug 20264111 PMAQI
12 AM
5 AM
23°C20/27°C
Day time
Avg. Highest Time
11 AM - 1 PM
54AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
6 PM
44AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 AM to 1 PM (Avg. 54), while the lowest AQI was between 6 PM to 6 PM (Avg. 44).
Night time
Avg. Highest Time
4 AM - 5 AM
47AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
12 AM - 3 AM
43AQI
4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 AM to 5 AM (Avg. 47), while the lowest AQI was between 12 AM to 3 AM (Avg. 43).
2026 Days Vs Air Quality
Chula Vista, California, United States
2026
93%
208
7%
16
Total number of days with different AQI categories in last 227 days in 2026 (138 days remaining)
Good
208 DaysModerate
16 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 93%
Health Risk Level:
Very Low
In 2026, 93% of 227 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
Chula Vista, 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
22AQI (US)
22AQI (US)
2nd January 2026
28AQI (US)
28AQI (US)
3rd January 2026
20AQI (US)
20AQI (US)
4th January 2026
13AQI (US)
13AQI (US)
5th January 2026
20AQI (US)
20AQI (US)
6th January 2026
36AQI (US)
36AQI (US)
7th January 2026
31AQI (US)
31AQI (US)
8th January 2026
32AQI (US)
32AQI (US)
9th January 2026
24AQI (US)
24AQI (US)
10th January 2026
20AQI (US)
20AQI (US)
11th January 2026
26AQI (US)
26AQI (US)
12th January 2026
30AQI (US)
30AQI (US)
13th January 2026
34AQI (US)
34AQI (US)
14th January 2026
46AQI (US)
46AQI (US)
15th January 2026
36AQI (US)
36AQI (US)
16th January 2026
47AQI (US)
47AQI (US)
17th January 2026
39AQI (US)
39AQI (US)
18th January 2026
35AQI (US)
35AQI (US)
19th January 2026
48AQI (US)
48AQI (US)
20th January 2026
56AQI (US)
56AQI (US)
21st January 2026
83AQI (US)
83AQI (US)
22nd January 2026
56AQI (US)
56AQI (US)
23rd January 2026
38AQI (US)
38AQI (US)
24th January 2026
24AQI (US)
24AQI (US)
25th January 2026
32AQI (US)
32AQI (US)
26th January 2026
33AQI (US)
33AQI (US)
27th January 2026
26AQI (US)
26AQI (US)
28th January 2026
42AQI (US)
42AQI (US)
29th January 2026
44AQI (US)
44AQI (US)
30th January 2026
50AQI (US)
50AQI (US)
31st January 2026
35AQI (US)
35AQI (US)
1st February 2026
44AQI (US)
44AQI (US)
2nd February 2026
47AQI (US)
47AQI (US)
3rd February 2026
50AQI (US)
50AQI (US)
4th February 2026
43AQI (US)
43AQI (US)
5th February 2026
45AQI (US)
45AQI (US)
6th February 2026
44AQI (US)
44AQI (US)
7th February 2026
37AQI (US)
37AQI (US)
8th February 2026
38AQI (US)
38AQI (US)
9th February 2026
41AQI (US)
41AQI (US)
10th February 2026
46AQI (US)
46AQI (US)
11th February 2026
24AQI (US)
24AQI (US)
12th February 2026
22AQI (US)
22AQI (US)
13th February 2026
34AQI (US)
34AQI (US)
14th February 2026
43AQI (US)
43AQI (US)
15th February 2026
39AQI (US)
39AQI (US)
16th February 2026
40AQI (US)
40AQI (US)
17th February 2026
28AQI (US)
28AQI (US)
18th February 2026
30AQI (US)
30AQI (US)
19th February 2026
27AQI (US)
27AQI (US)
20th February 2026
22AQI (US)
22AQI (US)
21st February 2026
24AQI (US)
24AQI (US)
22nd February 2026
29AQI (US)
29AQI (US)
23rd February 2026
36AQI (US)
36AQI (US)
24th February 2026
42AQI (US)
42AQI (US)
25th February 2026
38AQI (US)
38AQI (US)
26th February 2026
36AQI (US)
36AQI (US)
27th February 2026
35AQI (US)
35AQI (US)
28th February 2026
40AQI (US)
40AQI (US)
1st March 2026
33AQI (US)
33AQI (US)
2nd March 2026
46AQI (US)
46AQI (US)
3rd March 2026
33AQI (US)
33AQI (US)
4th March 2026
31AQI (US)
31AQI (US)
5th March 2026
30AQI (US)
30AQI (US)
6th March 2026
32AQI (US)
32AQI (US)
7th March 2026
30AQI (US)
30AQI (US)
8th March 2026
33AQI (US)
33AQI (US)
9th March 2026
21AQI (US)
21AQI (US)
10th March 2026
26AQI (US)
26AQI (US)
11th March 2026
34AQI (US)
34AQI (US)
12th March 2026
42AQI (US)
42AQI (US)
13th March 2026
46AQI (US)
46AQI (US)
14th March 2026
37AQI (US)
37AQI (US)
15th March 2026
31AQI (US)
31AQI (US)
16th March 2026
40AQI (US)
40AQI (US)
17th March 2026
42AQI (US)
42AQI (US)
18th March 2026
44AQI (US)
44AQI (US)
19th March 2026
40AQI (US)
40AQI (US)
20th March 2026
50AQI (US)
50AQI (US)
21st March 2026
36AQI (US)
36AQI (US)
22nd March 2026
32AQI (US)
32AQI (US)
23rd March 2026
38AQI (US)
38AQI (US)
24th March 2026
44AQI (US)
44AQI (US)
25th March 2026
31AQI (US)
31AQI (US)
26th March 2026
32AQI (US)
32AQI (US)
27th March 2026
34AQI (US)
34AQI (US)
28th March 2026
36AQI (US)
36AQI (US)
29th March 2026
34AQI (US)
34AQI (US)
30th March 2026
40AQI (US)
40AQI (US)
31st March 2026
30AQI (US)
30AQI (US)
1st April 2026
24AQI (US)
24AQI (US)
2nd April 2026
16AQI (US)
16AQI (US)
3rd April 2026
24AQI (US)
24AQI (US)
4th April 2026
34AQI (US)
34AQI (US)
5th April 2026
36AQI (US)
36AQI (US)
6th April 2026
39AQI (US)
39AQI (US)
7th April 2026
36AQI (US)
36AQI (US)
8th April 2026
40AQI (US)
40AQI (US)
9th April 2026
40AQI (US)
40AQI (US)
10th April 2026
32AQI (US)
32AQI (US)
11th April 2026
26AQI (US)
26AQI (US)
12th April 2026
24AQI (US)
24AQI (US)
13th April 2026
20AQI (US)
20AQI (US)
14th April 2026
19AQI (US)
19AQI (US)
15th April 2026
32AQI (US)
32AQI (US)
16th April 2026
26AQI (US)
26AQI (US)
17th April 2026
18th April 2026
37AQI (US)
37AQI (US)
19th April 2026
34AQI (US)
34AQI (US)
20th April 2026
30AQI (US)
30AQI (US)
21st April 2026
22AQI (US)
22AQI (US)
22nd April 2026
23rd April 2026
22AQI (US)
22AQI (US)
24th April 2026
27AQI (US)
27AQI (US)
25th April 2026
22AQI (US)
22AQI (US)
26th April 2026
28AQI (US)
28AQI (US)
27th April 2026
15AQI (US)
15AQI (US)
28th April 2026
20AQI (US)
20AQI (US)
29th April 2026
28AQI (US)
28AQI (US)
30th April 2026
30AQI (US)
30AQI (US)
1st May 2026
40AQI (US)
40AQI (US)
2nd May 2026
32AQI (US)
32AQI (US)
3rd May 2026
23AQI (US)
23AQI (US)
4th May 2026
26AQI (US)
26AQI (US)
5th May 2026
28AQI (US)
28AQI (US)
6th May 2026
28AQI (US)
28AQI (US)
7th May 2026
34AQI (US)
34AQI (US)
8th May 2026
42AQI (US)
42AQI (US)
9th May 2026
10th May 2026
36AQI (US)
36AQI (US)
11th May 2026
41AQI (US)
41AQI (US)
12th May 2026
32AQI (US)
32AQI (US)
13th May 2026
33AQI (US)
33AQI (US)
14th May 2026
29AQI (US)
29AQI (US)
15th May 2026
48AQI (US)
48AQI (US)
16th May 2026
50AQI (US)
50AQI (US)
17th May 2026
61AQI (US)
61AQI (US)
18th May 2026
58AQI (US)
58AQI (US)
19th May 2026
57AQI (US)
57AQI (US)
20th May 2026
60AQI (US)
60AQI (US)
21st May 2026
50AQI (US)
50AQI (US)
22nd May 2026
56AQI (US)
56AQI (US)
23rd May 2026
50AQI (US)
50AQI (US)
24th May 2026
45AQI (US)
45AQI (US)
25th May 2026
39AQI (US)
39AQI (US)
26th May 2026
23AQI (US)
23AQI (US)
27th May 2026
14AQI (US)
14AQI (US)
28th May 2026
15AQI (US)
15AQI (US)
29th May 2026
20AQI (US)
20AQI (US)
30th May 2026
18AQI (US)
18AQI (US)
31st May 2026
22AQI (US)
22AQI (US)
1st June 2026
32AQI (US)
32AQI (US)
2nd June 2026
39AQI (US)
39AQI (US)
3rd June 2026
40AQI (US)
40AQI (US)
4th June 2026
44AQI (US)
44AQI (US)
5th June 2026
33AQI (US)
33AQI (US)
6th June 2026
26AQI (US)
26AQI (US)
7th June 2026
32AQI (US)
32AQI (US)
8th June 2026
33AQI (US)
33AQI (US)
9th June 2026
26AQI (US)
26AQI (US)
10th June 2026
28AQI (US)
28AQI (US)
11th June 2026
30AQI (US)
30AQI (US)
12th June 2026
20AQI (US)
20AQI (US)
13th June 2026
16AQI (US)
16AQI (US)
14th June 2026
18AQI (US)
18AQI (US)
15th June 2026
21AQI (US)
21AQI (US)
16th June 2026
21AQI (US)
21AQI (US)
17th June 2026
22AQI (US)
22AQI (US)
18th June 2026
20AQI (US)
20AQI (US)
19th June 2026
24AQI (US)
24AQI (US)
20th June 2026
20AQI (US)
20AQI (US)
21st June 2026
28AQI (US)
28AQI (US)
22nd June 2026
20AQI (US)
20AQI (US)
23rd June 2026
34AQI (US)
34AQI (US)
24th June 2026
24AQI (US)
24AQI (US)
25th June 2026
20AQI (US)
20AQI (US)
26th June 2026
22AQI (US)
22AQI (US)
27th June 2026
21AQI (US)
21AQI (US)
28th June 2026
16AQI (US)
16AQI (US)
29th June 2026
21AQI (US)
21AQI (US)
30th June 2026
26AQI (US)
26AQI (US)
1st July 2026
20AQI (US)
20AQI (US)
2nd July 2026
34AQI (US)
34AQI (US)
3rd July 2026
22AQI (US)
22AQI (US)
4th July 2026
26AQI (US)
26AQI (US)
5th July 2026
38AQI (US)
38AQI (US)
6th July 2026
25AQI (US)
25AQI (US)
7th July 2026
56AQI (US)
56AQI (US)
8th July 2026
28AQI (US)
28AQI (US)
9th July 2026
36AQI (US)
36AQI (US)
10th July 2026
35AQI (US)
35AQI (US)
11th July 2026
32AQI (US)
32AQI (US)
12th July 2026
26AQI (US)
26AQI (US)
13th July 2026
34AQI (US)
34AQI (US)
14th July 2026
32AQI (US)
32AQI (US)
15th July 2026
32AQI (US)
32AQI (US)
16th July 2026
36AQI (US)
36AQI (US)
17th July 2026
53AQI (US)
53AQI (US)
18th July 2026
51AQI (US)
51AQI (US)
19th July 2026
48AQI (US)
48AQI (US)
20th July 2026
46AQI (US)
46AQI (US)
21st July 2026
46AQI (US)
46AQI (US)
22nd July 2026
44AQI (US)
44AQI (US)
23rd July 2026
46AQI (US)
46AQI (US)
24th July 2026
49AQI (US)
49AQI (US)
25th July 2026
52AQI (US)
52AQI (US)
26th July 2026
49AQI (US)
49AQI (US)
27th July 2026
50AQI (US)
50AQI (US)
28th July 2026
50AQI (US)
50AQI (US)
29th July 2026
52AQI (US)
52AQI (US)
30th July 2026
48AQI (US)
48AQI (US)
31st July 2026
46AQI (US)
46AQI (US)
1st August 2026
51AQI (US)
51AQI (US)
2nd August 2026
52AQI (US)
52AQI (US)
3rd August 2026
50AQI (US)
50AQI (US)
4th August 2026
54AQI (US)
54AQI (US)
5th August 2026
50AQI (US)
50AQI (US)
6th August 2026
46AQI (US)
46AQI (US)
7th August 2026
44AQI (US)
44AQI (US)
8th August 2026
45AQI (US)
45AQI (US)
9th August 2026
48AQI (US)
48AQI (US)
10th August 2026
48AQI (US)
48AQI (US)
11th August 2026
44AQI (US)
44AQI (US)
12th August 2026
42AQI (US)
42AQI (US)
13th August 2026
38AQI (US)
38AQI (US)
14th August 2026
32AQI (US)
32AQI (US)
15th August 2026
40AQI (US)
40AQI (US)
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
36AQI (US)
37AQI (US)
36AQI (US)
28AQI (US)
37AQI (US)
26AQI (US)
40AQI (US)
46AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202635AQI (US)
28
3
28
31
28
25
5
30
26
5
12
3
208
16
Highest AQI (US) recorded in
August46AQI (US)
Lowest AQI (US) recorded in
June26AQI (US)
202551AQI (US)
13
15
3
11
17
23
8
23
7
15
16
12
18
23
8
6
25
15
15
6
25
15
15
11
20
173
189
3
Highest AQI (US) recorded in
December60AQI (US)
Lowest AQI (US) recorded in
April41AQI (US)
202452AQI (US)
19
12
20
9
27
4
18
12
16
15
9
20
15
16
7
24
10
19
1
8
22
1
22
8
6
25
177
186
2
Highest AQI (US) recorded in
October63AQI (US)
Lowest AQI (US) recorded in
March41AQI (US)
202390AQI (US)
9
7
1
14
5
12
1
10
17
12
1
3
20
1
6
20
11
18
12
5
26
18
12
1
13
17
8
23
12
16
1
10
21
138
189
4
1
1
30
Highest AQI (US) recorded in
January241AQI (US)
Lowest AQI (US) recorded in
June45AQI (US)
202274AQI (US)
24
5
18
4
17
14
9
8
15
16
8
16
6
18
3
2
5
11
1
1
9
6
24
1
8
20
2
10
21
138
144
4
1
15
Highest AQI (US) recorded in
September204AQI (US)
Lowest AQI (US) recorded in
July40AQI (US)
202149AQI (US)
19
6
13
15
29
2
17
13
18
13
22
8
24
7
12
19
9
18
3
23
8
12
18
18
13
216
140
3
Highest AQI (US) recorded in
September65AQI (US)
Lowest AQI (US) recorded in
March39AQI (US)
202052AQI (US)
12
1
18
2
15
3
23
7
23
8
17
14
4
20
5
1
7
20
3
15
15
15
16
149
106
8
1
Highest AQI (US) recorded in
September80AQI (US)
Lowest AQI (US) recorded in
April35AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2023(Avg.)
90AQI (US)Least Polluted Year Recorded
2026(Avg.)
35AQI (US)Chula Vista's annual 2026 AQI (US) (35) shows an average percentage change of -39.8% (improved AQI (US)) compared to previous years: 2020 (52), 2021 (49), 2022 (74), 2023 (90), 2024 (52), 2025 (51).
