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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Shasta Lake, 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

Shasta Lake, California, United States

2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
10th Aug 2026
62AQI
Lowest AQI recorded on
18th Aug 2025
19AQI

Same Day Analysis (17th August):
On this day, AQI across the 3 years varied significantly: 2026 ranks 1st highest AQI at 48 of Good air quality on the same day.

Day & Night AQI Trend: 16th Aug - 17th Aug 2026

Shasta Lake, California, United States

AQI
Day
Night
.

6 AM16th Aug 2026

8 PM

5 AM17th Aug 2026

Day time
Avg. Highest Time
3PM16th Aug

56AQI

Avg. Lowest Time
2PM16th Aug

39AQI

Night time
Avg. Highest Time
12AM17th Aug

63AQI

Avg. Lowest Time
3AM17th Aug

47AQI

In the last 24 hours,

Shasta Lake's AQI reached its highest point of 63 at 12 AM during the Night, while the lowest point, 39, was recorded at 2 PM during the Day between 16th Aug and 17th Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Shasta Lake, California, United States

JulAug
19th - 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 - 16th16th - 17th17th
Day
Night
19th Jul 2026536 AMAQI
19th Jul 2026537 AMAQI
19th Jul 2026528 AMAQI
19th Jul 2026529 AMAQI
19th Jul 20265510 AMAQI
19th Jul 20264411 AMAQI
19th Jul 20265212 PMAQI
19th Jul 2026561 PMAQI
19th Jul 2026522 PMAQI
19th Jul 2026483 PMAQI
19th Jul 2026524 PMAQI
19th Jul 2026475 PMAQI
19th Jul 2026476 PMAQI
19th Jul 2026507 PMAQI
19th Jul 2026388 PMAQI
19th Jul 2026529 PMAQI
19th Jul 20265410 PMAQI
19th Jul 20264911 PMAQI
20th Jul 20265312 AMAQI
20th Jul 2026571 AMAQI
20th Jul 2026552 AMAQI
20th Jul 2026543 AMAQI
20th Jul 2026524 AMAQI
20th Jul 2026505 AMAQI

25°C12/35°C

20th Jul 2026506 AMAQI
20th Jul 2026477 AMAQI
20th Jul 2026528 AMAQI
20th Jul 2026529 AMAQI
20th Jul 20265310 AMAQI
20th Jul 20265011 AMAQI
20th Jul 20265312 PMAQI
20th Jul 2026661 PMAQI
20th Jul 2026522 PMAQI
20th Jul 2026543 PMAQI
20th Jul 2026464 PMAQI
20th Jul 2026365 PMAQI
20th Jul 2026456 PMAQI
20th Jul 2026427 PMAQI
20th Jul 2026549 PMAQI
20th Jul 20264010 PMAQI
20th Jul 20265911 PMAQI
21st Jul 20263212 AMAQI
21st Jul 2026401 AMAQI
21st Jul 2026582 AMAQI
21st Jul 2026583 AMAQI
21st Jul 2026464 AMAQI
21st Jul 2026405 AMAQI

26°C19/34°C

21st Jul 2026466 AMAQI
21st Jul 2026407 AMAQI
21st Jul 2026348 AMAQI
21st Jul 2026449 AMAQI
21st Jul 20264410 AMAQI
21st Jul 20264211 AMAQI
21st Jul 20263212 PMAQI
21st Jul 2026421 PMAQI
21st Jul 2026422 PMAQI
21st Jul 2026473 PMAQI
21st Jul 2026404 PMAQI
21st Jul 2026215 PMAQI
21st Jul 2026366 PMAQI
21st Jul 2026387 PMAQI
21st Jul 2026508 PMAQI
21st Jul 2026509 PMAQI
21st Jul 20264610 PMAQI
21st Jul 20265011 PMAQI
22nd Jul 20264412 AMAQI
22nd Jul 2026481 AMAQI
22nd Jul 2026402 AMAQI
22nd Jul 2026433 AMAQI
22nd Jul 2026494 AMAQI
22nd Jul 2026545 AMAQI

27°C17/36°C

22nd Jul 2026366 AMAQI
22nd Jul 2026387 AMAQI
22nd Jul 2026458 AMAQI
22nd Jul 2026469 AMAQI
22nd Jul 20263210 AMAQI
22nd Jul 20264911 AMAQI
22nd Jul 20264012 PMAQI
22nd Jul 2026461 PMAQI
22nd Jul 2026312 PMAQI
22nd Jul 2026543 PMAQI
22nd Jul 2026604 PMAQI
22nd Jul 2026325 PMAQI
22nd Jul 2026416 PMAQI
22nd Jul 2026497 PMAQI
22nd Jul 2026448 PMAQI
22nd Jul 2026439 PMAQI
22nd Jul 20264410 PMAQI
22nd Jul 20263811 PMAQI
23rd Jul 20265212 AMAQI
23rd Jul 2026431 AMAQI
23rd Jul 2026462 AMAQI
23rd Jul 2026443 AMAQI
23rd Jul 2026414 AMAQI
23rd Jul 2026455 AMAQI

25°C16/32°C

23rd Jul 2026446 AMAQI
23rd Jul 2026477 AMAQI
23rd Jul 2026568 AMAQI
23rd Jul 2026399 AMAQI
23rd Jul 20264710 AMAQI
23rd Jul 20265311 AMAQI
23rd Jul 20265812 PMAQI
23rd Jul 2026611 PMAQI
23rd Jul 2026462 PMAQI
23rd Jul 2026383 PMAQI
23rd Jul 2026264 PMAQI
23rd Jul 2026435 PMAQI
23rd Jul 2026336 PMAQI
23rd Jul 2026287 PMAQI
23rd Jul 2026308 PMAQI
23rd Jul 2026569 PMAQI
23rd Jul 20266010 PMAQI
23rd Jul 20265411 PMAQI
24th Jul 20264212 AMAQI
24th Jul 2026441 AMAQI
24th Jul 2026532 AMAQI
24th Jul 2026543 AMAQI
24th Jul 2026434 AMAQI
24th Jul 2026545 AMAQI

23°C11/34°C

24th Jul 2026506 AMAQI
24th Jul 2026397 AMAQI
24th Jul 2026568 AMAQI
24th Jul 2026529 AMAQI
24th Jul 20265210 AMAQI
24th Jul 20265211 AMAQI
24th Jul 20263612 PMAQI
24th Jul 2026251 PMAQI
24th Jul 2026382 PMAQI
24th Jul 2026433 PMAQI
24th Jul 2026384 PMAQI
24th Jul 2026295 PMAQI
24th Jul 2026386 PMAQI
24th Jul 2026457 PMAQI
24th Jul 2026628 PMAQI
24th Jul 2026619 PMAQI
24th Jul 20265510 PMAQI
24th Jul 20265011 PMAQI
25th Jul 20264612 AMAQI
25th Jul 2026501 AMAQI
25th Jul 2026522 AMAQI
25th Jul 2026403 AMAQI
25th Jul 2026524 AMAQI
25th Jul 2026445 AMAQI

24°C11/35°C

25th Jul 2026446 AMAQI
25th Jul 2026447 AMAQI
25th Jul 2026448 AMAQI
25th Jul 2026499 AMAQI
25th Jul 20264110 AMAQI
25th Jul 20265011 AMAQI
25th Jul 20263012 PMAQI
25th Jul 2026521 PMAQI
25th Jul 2026442 PMAQI
25th Jul 2026533 PMAQI
25th Jul 2026414 PMAQI
25th Jul 2026395 PMAQI
25th Jul 2026396 PMAQI
25th Jul 2026367 PMAQI
25th Jul 2026418 PMAQI
25th Jul 2026449 PMAQI
25th Jul 20265010 PMAQI
25th Jul 20264011 PMAQI
26th Jul 20264312 AMAQI
26th Jul 2026471 AMAQI
26th Jul 2026502 AMAQI
26th Jul 2026483 AMAQI
26th Jul 2026534 AMAQI
26th Jul 2026545 AMAQI

24°C13/33°C

26th Jul 2026526 AMAQI
26th Jul 2026457 AMAQI
26th Jul 2026538 AMAQI
26th Jul 2026569 AMAQI
26th Jul 20264810 AMAQI
26th Jul 20264811 AMAQI
26th Jul 20265112 PMAQI
26th Jul 2026421 PMAQI
26th Jul 2026402 PMAQI
26th Jul 2026483 PMAQI
26th Jul 2026364 PMAQI
26th Jul 2026305 PMAQI
26th Jul 2026356 PMAQI
26th Jul 2026397 PMAQI
26th Jul 2026398 PMAQI
26th Jul 2026389 PMAQI
26th Jul 20264010 PMAQI
26th Jul 20265211 PMAQI
27th Jul 20264312 AMAQI
27th Jul 2026461 AMAQI
27th Jul 2026402 AMAQI
27th Jul 2026413 AMAQI
27th Jul 2026424 AMAQI
27th Jul 2026465 AMAQI

24°C13/32°C

27th Jul 2026486 AMAQI
27th Jul 2026517 AMAQI
27th Jul 2026518 AMAQI
27th Jul 2026399 AMAQI
27th Jul 20266010 AMAQI
27th Jul 20265711 AMAQI
27th Jul 20266212 PMAQI
27th Jul 2026591 PMAQI
27th Jul 2026602 PMAQI
27th Jul 2026613 PMAQI
27th Jul 2026304 PMAQI
27th Jul 2026445 PMAQI
27th Jul 2026406 PMAQI
27th Jul 2026327 PMAQI
27th Jul 2026258 PMAQI
27th Jul 2026609 PMAQI
27th Jul 20262710 PMAQI
27th Jul 20264011 PMAQI
28th Jul 20265112 AMAQI
28th Jul 2026481 AMAQI
28th Jul 2026502 AMAQI
28th Jul 2026363 AMAQI
28th Jul 2026244 AMAQI
28th Jul 2026365 AMAQI

24°C13/33°C

28th Jul 2026516 AMAQI
28th Jul 2026297 AMAQI
28th Jul 2026488 AMAQI
28th Jul 2026729 AMAQI
28th Jul 20264610 AMAQI
28th Jul 20264811 AMAQI
28th Jul 20265812 PMAQI
28th Jul 2026441 PMAQI
28th Jul 2026432 PMAQI
28th Jul 2026523 PMAQI
28th Jul 2026324 PMAQI
28th Jul 2026295 PMAQI
28th Jul 2026536 PMAQI
28th Jul 2026327 PMAQI
28th Jul 2026288 PMAQI
28th Jul 2026459 PMAQI
28th Jul 20265010 PMAQI
28th Jul 20264511 PMAQI
29th Jul 20265212 AMAQI
29th Jul 2026521 AMAQI
29th Jul 2026302 AMAQI
29th Jul 2026543 AMAQI
29th Jul 2026504 AMAQI
29th Jul 2026525 AMAQI

24°C13/34°C

29th Jul 2026566 AMAQI
29th Jul 2026327 AMAQI
29th Jul 2026398 AMAQI
29th Jul 2026419 AMAQI
29th Jul 20264110 AMAQI
29th Jul 20264211 AMAQI
29th Jul 20264112 PMAQI
29th Jul 2026391 PMAQI
29th Jul 2026302 PMAQI
29th Jul 2026373 PMAQI
29th Jul 2026424 PMAQI
29th Jul 2026405 PMAQI
29th Jul 2026406 PMAQI
29th Jul 2026397 PMAQI
29th Jul 2026468 PMAQI
29th Jul 2026269 PMAQI
29th Jul 20263410 PMAQI
29th Jul 20263611 PMAQI
30th Jul 20264812 AMAQI
30th Jul 2026461 AMAQI
30th Jul 2026402 AMAQI
30th Jul 2026403 AMAQI
30th Jul 2026424 AMAQI
30th Jul 2026465 AMAQI

25°C15/34°C

30th Jul 2026496 AMAQI
30th Jul 2026487 AMAQI
30th Jul 2026428 AMAQI
30th Jul 2026679 AMAQI
30th Jul 20264410 AMAQI
30th Jul 20265411 AMAQI
30th Jul 20264012 PMAQI
30th Jul 2026351 PMAQI
30th Jul 2026452 PMAQI
30th Jul 2026583 PMAQI
30th Jul 2026454 PMAQI
30th Jul 2026365 PMAQI
30th Jul 2026476 PMAQI
30th Jul 2026687 PMAQI
30th Jul 2026648 PMAQI
30th Jul 2026689 PMAQI
30th Jul 20265310 PMAQI
30th Jul 20265211 PMAQI
31st Jul 20264912 AMAQI
31st Jul 2026481 AMAQI
31st Jul 2026542 AMAQI
31st Jul 2026563 AMAQI
31st Jul 2026344 AMAQI
31st Jul 2026475 AMAQI

25°C15/35°C

31st Jul 2026526 AMAQI
31st Jul 2026387 AMAQI
31st Jul 2026388 AMAQI
31st Jul 2026439 AMAQI
31st Jul 20264810 AMAQI
31st Jul 20265011 AMAQI
31st Jul 20265412 PMAQI
31st Jul 2026561 PMAQI
31st Jul 2026552 PMAQI
31st Jul 2026563 PMAQI
31st Jul 2026554 PMAQI
31st Jul 2026445 PMAQI
31st Jul 2026306 PMAQI
31st Jul 2026267 PMAQI
31st Jul 2026368 PMAQI
31st Jul 2026229 PMAQI
31st Jul 20264510 PMAQI
31st Jul 20264711 PMAQI
1st Aug 20265612 AMAQI
1st Aug 2026361 AMAQI
1st Aug 2026422 AMAQI
1st Aug 2026543 AMAQI
1st Aug 2026544 AMAQI
1st Aug 2026365 AMAQI

26°C15/36°C

1st Aug 2026376 AMAQI
1st Aug 2026357 AMAQI
1st Aug 2026468 AMAQI
1st Aug 2026529 AMAQI
1st Aug 20265010 AMAQI
1st Aug 20265011 AMAQI
1st Aug 20264112 PMAQI
1st Aug 2026321 PMAQI
1st Aug 2026442 PMAQI
1st Aug 2026503 PMAQI
1st Aug 2026434 PMAQI
1st Aug 2026325 PMAQI
1st Aug 2026426 PMAQI
1st Aug 2026377 PMAQI
1st Aug 2026408 PMAQI
1st Aug 2026359 PMAQI
1st Aug 20263210 PMAQI
1st Aug 20264611 PMAQI
2nd Aug 20264812 AMAQI
2nd Aug 2026281 AMAQI
2nd Aug 2026282 AMAQI
2nd Aug 2026423 AMAQI
2nd Aug 2026434 AMAQI
2nd Aug 2026465 AMAQI

26°C15/36°C

2nd Aug 2026266 AMAQI
2nd Aug 2026367 AMAQI
2nd Aug 2026428 AMAQI
2nd Aug 2026479 AMAQI
2nd Aug 20264610 AMAQI
2nd Aug 20265011 AMAQI
2nd Aug 20264712 PMAQI
2nd Aug 2026491 PMAQI
2nd Aug 2026492 PMAQI
2nd Aug 2026403 PMAQI
2nd Aug 2026354 PMAQI
2nd Aug 2026395 PMAQI
2nd Aug 2026326 PMAQI
2nd Aug 2026307 PMAQI
2nd Aug 2026388 PMAQI
2nd Aug 2026359 PMAQI
2nd Aug 20263210 PMAQI
2nd Aug 20264611 PMAQI
3rd Aug 20264812 AMAQI
3rd Aug 2026221 AMAQI
3rd Aug 2026362 AMAQI
3rd Aug 2026393 AMAQI
3rd Aug 2026394 AMAQI
3rd Aug 2026375 AMAQI

26°C15/36°C

3rd Aug 2026466 AMAQI
3rd Aug 2026307 AMAQI
3rd Aug 2026308 AMAQI
3rd Aug 2026369 AMAQI
3rd Aug 20264110 AMAQI
3rd Aug 20265511 AMAQI
3rd Aug 20266012 PMAQI
3rd Aug 2026621 PMAQI
3rd Aug 2026522 PMAQI
3rd Aug 2026483 PMAQI
3rd Aug 2026504 PMAQI
3rd Aug 2026495 PMAQI
3rd Aug 2026446 PMAQI
3rd Aug 2026467 PMAQI
3rd Aug 2026548 PMAQI
3rd Aug 2026529 PMAQI
3rd Aug 20265010 PMAQI
3rd Aug 20265011 PMAQI
4th Aug 20265012 AMAQI
4th Aug 2026521 AMAQI
4th Aug 2026532 AMAQI
4th Aug 2026523 AMAQI
4th Aug 2026544 AMAQI
4th Aug 2026525 AMAQI

26°C15/36°C

4th Aug 2026496 AMAQI
4th Aug 2026487 AMAQI
4th Aug 2026588 AMAQI
4th Aug 2026589 AMAQI
4th Aug 20265710 AMAQI
4th Aug 20266211 AMAQI
4th Aug 20267012 PMAQI
4th Aug 2026661 PMAQI
4th Aug 2026642 PMAQI
4th Aug 2026583 PMAQI
4th Aug 2026574 PMAQI
4th Aug 2026515 PMAQI
4th Aug 2026496 PMAQI
4th Aug 2026487 PMAQI
4th Aug 2026508 PMAQI
4th Aug 2026469 PMAQI
4th Aug 20264610 PMAQI
4th Aug 20264811 PMAQI
5th Aug 20264912 AMAQI
5th Aug 2026471 AMAQI
5th Aug 2026462 AMAQI
5th Aug 2026493 AMAQI
5th Aug 2026544 AMAQI
5th Aug 2026625 AMAQI

27°C15/38°C

5th Aug 2026656 AMAQI
5th Aug 2026667 AMAQI
5th Aug 2026708 AMAQI
5th Aug 2026769 AMAQI
5th Aug 20266410 AMAQI
5th Aug 20265511 AMAQI
5th Aug 20265412 PMAQI
5th Aug 2026521 PMAQI
5th Aug 2026482 PMAQI
5th Aug 2026533 PMAQI
5th Aug 2026534 PMAQI
5th Aug 2026525 PMAQI
5th Aug 2026526 PMAQI
5th Aug 2026497 PMAQI
5th Aug 2026478 PMAQI
5th Aug 2026489 PMAQI
5th Aug 20265410 PMAQI
5th Aug 20265011 PMAQI
6th Aug 20265012 AMAQI
6th Aug 2026481 AMAQI
6th Aug 2026472 AMAQI
6th Aug 2026463 AMAQI
6th Aug 2026474 AMAQI
6th Aug 2026525 AMAQI

26°C15/37°C

6th Aug 2026526 AMAQI
6th Aug 2026517 AMAQI
6th Aug 2026618 AMAQI
6th Aug 2026589 AMAQI
6th Aug 20264910 AMAQI
6th Aug 20265211 AMAQI
6th Aug 20265012 PMAQI
6th Aug 2026541 PMAQI
6th Aug 2026512 PMAQI
6th Aug 2026523 PMAQI
6th Aug 2026544 PMAQI
6th Aug 2026535 PMAQI
6th Aug 2026466 PMAQI
6th Aug 2026487 PMAQI
6th Aug 2026518 PMAQI
6th Aug 2026469 PMAQI
6th Aug 20265110 PMAQI
6th Aug 20264911 PMAQI
7th Aug 20266112 AMAQI
7th Aug 2026501 AMAQI
7th Aug 2026562 AMAQI
7th Aug 2026723 AMAQI
7th Aug 2026554 AMAQI
7th Aug 2026625 AMAQI

26°C14/37°C

7th Aug 2026706 AMAQI
7th Aug 2026667 AMAQI
7th Aug 2026618 AMAQI
7th Aug 2026669 AMAQI
7th Aug 20267410 AMAQI
7th Aug 20265511 AMAQI
7th Aug 20265212 PMAQI
7th Aug 2026561 PMAQI
7th Aug 2026602 PMAQI
7th Aug 2026593 PMAQI
7th Aug 2026574 PMAQI
7th Aug 2026525 PMAQI
7th Aug 2026606 PMAQI
7th Aug 2026547 PMAQI
7th Aug 2026548 PMAQI
7th Aug 2026589 PMAQI
7th Aug 20265210 PMAQI
7th Aug 20265411 PMAQI
8th Aug 20265712 AMAQI
8th Aug 2026581 AMAQI
8th Aug 2026602 AMAQI
8th Aug 2026603 AMAQI
8th Aug 2026624 AMAQI
8th Aug 2026645 AMAQI

28°C15/39°C

8th Aug 2026666 AMAQI
8th Aug 2026667 AMAQI
8th Aug 2026638 AMAQI
8th Aug 2026689 AMAQI
8th Aug 20266410 AMAQI
8th Aug 20266211 AMAQI
8th Aug 20265812 PMAQI
8th Aug 2026661 PMAQI
8th Aug 2026612 PMAQI
8th Aug 2026643 PMAQI
8th Aug 2026624 PMAQI
8th Aug 2026565 PMAQI
8th Aug 2026566 PMAQI
8th Aug 2026547 PMAQI
8th Aug 2026448 PMAQI
8th Aug 2026449 PMAQI
8th Aug 20264110 PMAQI
8th Aug 20264311 PMAQI
9th Aug 20264312 AMAQI
9th Aug 2026461 AMAQI
9th Aug 2026392 AMAQI
9th Aug 2026363 AMAQI
9th Aug 2026364 AMAQI
9th Aug 2026475 AMAQI

29°C17/39°C

9th Aug 2026436 AMAQI
9th Aug 2026437 AMAQI
9th Aug 2026598 AMAQI
9th Aug 2026749 AMAQI
9th Aug 20266010 AMAQI
9th Aug 20266211 AMAQI
9th Aug 20265812 PMAQI
9th Aug 2026671 PMAQI
9th Aug 2026682 PMAQI
9th Aug 2026663 PMAQI
9th Aug 2026714 PMAQI
9th Aug 2026625 PMAQI
9th Aug 2026596 PMAQI
9th Aug 2026587 PMAQI
9th Aug 2026548 PMAQI
9th Aug 2026509 PMAQI
9th Aug 20264910 PMAQI
9th Aug 20266411 PMAQI
10th Aug 20264312 AMAQI
10th Aug 2026441 AMAQI
10th Aug 2026432 AMAQI
10th Aug 2026463 AMAQI
10th Aug 2026434 AMAQI
10th Aug 2026485 AMAQI

28°C17/38°C

10th Aug 2026516 AMAQI
10th Aug 2026507 AMAQI
10th Aug 2026548 AMAQI
10th Aug 2026689 AMAQI
10th Aug 20266910 AMAQI
10th Aug 20265911 AMAQI
10th Aug 20265812 PMAQI
10th Aug 2026611 PMAQI
10th Aug 2026752 PMAQI
10th Aug 2026743 PMAQI
10th Aug 2026914 PMAQI
10th Aug 2026845 PMAQI
10th Aug 2026886 PMAQI
10th Aug 2026827 PMAQI
10th Aug 2026808 PMAQI
10th Aug 2026609 PMAQI
10th Aug 20265610 PMAQI
10th Aug 20265011 PMAQI
11th Aug 20264812 AMAQI
11th Aug 2026441 AMAQI
11th Aug 2026412 AMAQI
11th Aug 2026543 AMAQI
11th Aug 2026464 AMAQI
11th Aug 2026425 AMAQI

27°C16/37°C

11th Aug 2026456 AMAQI
11th Aug 2026507 AMAQI
11th Aug 2026638 AMAQI
11th Aug 2026689 AMAQI
11th Aug 20266610 AMAQI
11th Aug 20266011 AMAQI
11th Aug 20265912 PMAQI
11th Aug 2026551 PMAQI
11th Aug 2026642 PMAQI
11th Aug 2026683 PMAQI
11th Aug 2026444 PMAQI
11th Aug 2026665 PMAQI
11th Aug 2026646 PMAQI
11th Aug 2026587 PMAQI
11th Aug 2026548 PMAQI
11th Aug 2026529 PMAQI
11th Aug 20265310 PMAQI
11th Aug 20266911 PMAQI
12th Aug 20266812 AMAQI
12th Aug 2026691 AMAQI
12th Aug 2026582 AMAQI
12th Aug 2026643 AMAQI
12th Aug 2026704 AMAQI
12th Aug 2026725 AMAQI

25°C15/36°C

12th Aug 2026686 AMAQI
12th Aug 2026787 AMAQI
12th Aug 2026788 AMAQI
12th Aug 2026869 AMAQI
12th Aug 20267910 AMAQI
12th Aug 20268011 AMAQI
12th Aug 20265812 PMAQI
12th Aug 2026481 PMAQI
12th Aug 2026522 PMAQI
12th Aug 2026473 PMAQI
12th Aug 2026414 PMAQI
12th Aug 2026455 PMAQI
12th Aug 2026406 PMAQI
12th Aug 2026387 PMAQI
12th Aug 2026438 PMAQI
12th Aug 2026529 PMAQI
12th Aug 20265110 PMAQI
12th Aug 20264511 PMAQI
13th Aug 20264812 AMAQI
13th Aug 2026481 AMAQI
13th Aug 2026462 AMAQI
13th Aug 2026503 AMAQI
13th Aug 2026544 AMAQI
13th Aug 2026535 AMAQI

24°C14/34°C

13th Aug 2026546 AMAQI
13th Aug 2026567 AMAQI
13th Aug 2026588 AMAQI
13th Aug 2026599 AMAQI
13th Aug 20265810 AMAQI
13th Aug 20265711 AMAQI
13th Aug 20265412 PMAQI
13th Aug 2026511 PMAQI
13th Aug 2026462 PMAQI
13th Aug 2026523 PMAQI
13th Aug 2026414 PMAQI
13th Aug 2026435 PMAQI
13th Aug 2026416 PMAQI
13th Aug 2026547 PMAQI
13th Aug 2026538 PMAQI
13th Aug 2026569 PMAQI
13th Aug 20265610 PMAQI
13th Aug 20265511 PMAQI
14th Aug 20265212 AMAQI
14th Aug 2026481 AMAQI
14th Aug 2026452 AMAQI
14th Aug 2026403 AMAQI
14th Aug 2026374 AMAQI
14th Aug 2026375 AMAQI

22°C14/30°C

14th Aug 2026346 AMAQI
14th Aug 2026457 AMAQI
14th Aug 2026428 AMAQI
14th Aug 2026409 AMAQI
14th Aug 20264110 AMAQI
14th Aug 20264911 AMAQI
14th Aug 20265012 PMAQI
14th Aug 2026441 PMAQI
14th Aug 2026472 PMAQI
14th Aug 2026463 PMAQI
14th Aug 2026414 PMAQI
14th Aug 2026425 PMAQI
14th Aug 2026466 PMAQI
14th Aug 2026487 PMAQI
14th Aug 2026498 PMAQI
14th Aug 2026509 PMAQI
14th Aug 20264210 PMAQI
14th Aug 20265211 PMAQI
15th Aug 20265312 AMAQI
15th Aug 2026521 AMAQI
15th Aug 2026412 AMAQI
15th Aug 2026423 AMAQI
15th Aug 2026464 AMAQI
15th Aug 2026415 AMAQI

21°C12/28°C

15th Aug 2026406 AMAQI
15th Aug 2026417 AMAQI
15th Aug 2026358 AMAQI
15th Aug 2026489 AMAQI
15th Aug 20263510 AMAQI
15th Aug 20263911 AMAQI
15th Aug 20264012 PMAQI
15th Aug 2026481 PMAQI
15th Aug 2026512 PMAQI
15th Aug 2026433 PMAQI
15th Aug 2026414 PMAQI
15th Aug 2026325 PMAQI
15th Aug 2026406 PMAQI
15th Aug 2026437 PMAQI
15th Aug 2026428 PMAQI
15th Aug 2026449 PMAQI
15th Aug 20264910 PMAQI
15th Aug 20266011 PMAQI
16th Aug 20266212 AMAQI
16th Aug 2026641 AMAQI
16th Aug 2026592 AMAQI
16th Aug 2026623 AMAQI
16th Aug 2026584 AMAQI
16th Aug 2026575 AMAQI

19°C12/28°C

16th Aug 2026526 AMAQI
16th Aug 2026507 AMAQI
16th Aug 2026508 AMAQI
16th Aug 2026439 AMAQI
16th Aug 20264910 AMAQI
16th Aug 20264211 AMAQI
16th Aug 20264112 PMAQI
16th Aug 2026481 PMAQI
16th Aug 2026392 PMAQI
16th Aug 2026563 PMAQI
16th Aug 2026524 PMAQI
16th Aug 2026515 PMAQI
16th Aug 2026446 PMAQI
16th Aug 2026467 PMAQI
16th Aug 2026478 PMAQI
16th Aug 2026529 PMAQI
16th Aug 20265110 PMAQI
16th Aug 20264811 PMAQI
17th Aug 20266312 AMAQI
17th Aug 2026601 AMAQI
17th Aug 2026562 AMAQI
17th Aug 2026473 AMAQI
17th Aug 2026544 AMAQI
17th Aug 2026525 AMAQI

20°C8/31°C

17th Aug 2026486 AMAQI
6 AM
17th Aug 2026457 AMAQI
17th Aug 2026468 AMAQI
17th Aug 2026499 AMAQI
17th Aug 20265110 AMAQI
17th Aug 20264911 AMAQI
17th Aug 20264912 PMAQI
17th Aug 2026481 PMAQI
1 PM
17th Aug 2026522 PMAQI
17th Aug 2026453 PMAQI
17th Aug 2026364 PMAQI
17th Aug 2026365 PMAQI
17th Aug 2026336 PMAQI
17th Aug 2026497 PMAQI
17th Aug 2026508 PMAQI
8 PM
17th Aug 2026509 PMAQI
17th Aug 20264510 PMAQI
17th Aug 20265911 PMAQI
1 AM
5 AM

23°C13/31°C

Day time
Avg. Highest Time
9 AM

55AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
5 PM - 8 PM

46AQI

4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 AM to 9 AM (Avg. 55), while the lowest AQI was between 5 PM to 8 PM (Avg. 46).
Night time
Avg. Highest Time
12 AM

50AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
1 AM - 2 AM

48AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 12 AM (Avg. 50), while the lowest AQI was between 1 AM to 2 AM (Avg. 48).

2026 Days Vs Air Quality

Shasta Lake, California, United States

2026

93%

210

7%

16

Total number of days with different AQI categories in last 229 days in 2026 (136 days remaining)

Good
210 Days
Moderate
16 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 93%

Health Risk Level:

Very Low

In 2026, 93% of 229 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

Shasta Lake, 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
48AQI (US)
2nd January 2026
14AQI (US)
3rd January 2026
14AQI (US)
4th January 2026
16AQI (US)
5th January 2026
22AQI (US)
6th January 2026
18AQI (US)
7th January 2026
22AQI (US)
8th January 2026
14AQI (US)
9th January 2026
16AQI (US)
10th January 2026
24AQI (US)
11th January 2026
29AQI (US)
12th January 2026
46AQI (US)
13th January 2026
50AQI (US)
14th January 2026
60AQI (US)
15th January 2026
44AQI (US)
16th January 2026
22AQI (US)
17th January 2026
42AQI (US)
18th January 2026
33AQI (US)
19th January 2026
34AQI (US)
20th January 2026
41AQI (US)
21st January 2026
56AQI (US)
22nd January 2026
44AQI (US)
23rd January 2026
39AQI (US)
24th January 2026
41AQI (US)
25th January 2026
38AQI (US)
26th January 2026
30AQI (US)
27th January 2026
26AQI (US)
28th January 2026
30AQI (US)
29th January 2026
40AQI (US)
30th January 2026
44AQI (US)
31st January 2026
30AQI (US)
1st February 2026
32AQI (US)
2nd February 2026
36AQI (US)
3rd February 2026
34AQI (US)
4th February 2026
30AQI (US)
5th February 2026
38AQI (US)
6th February 2026
32AQI (US)
7th February 2026
30AQI (US)
8th February 2026
32AQI (US)
9th February 2026
42AQI (US)
10th February 2026
34AQI (US)
11th February 2026
40AQI (US)
12th February 2026
43AQI (US)
13th February 2026
34AQI (US)
14th February 2026
26AQI (US)
15th February 2026
28AQI (US)
16th February 2026
44AQI (US)
17th February 2026
46AQI (US)
18th February 2026
41AQI (US)
19th February 2026
42AQI (US)
20th February 2026
32AQI (US)
21st February 2026
28AQI (US)
22nd February 2026
28AQI (US)
23rd February 2026
31AQI (US)
24th February 2026
43AQI (US)
25th February 2026
40AQI (US)
26th February 2026
30AQI (US)
27th February 2026
24AQI (US)
28th February 2026
30AQI (US)
1st March 2026
30AQI (US)
2nd March 2026
50AQI (US)
3rd March 2026
28AQI (US)
4th March 2026
36AQI (US)
5th March 2026
32AQI (US)
6th March 2026
25AQI (US)
7th March 2026
34AQI (US)
8th March 2026
26AQI (US)
9th March 2026
19AQI (US)
10th March 2026
26AQI (US)
11th March 2026
26AQI (US)
12th March 2026
31AQI (US)
13th March 2026
29AQI (US)
14th March 2026
26AQI (US)
15th March 2026
20AQI (US)
16th March 2026
28AQI (US)
17th March 2026
26AQI (US)
18th March 2026
22AQI (US)
19th March 2026
22AQI (US)
20th March 2026
32AQI (US)
21st March 2026
24AQI (US)
22nd March 2026
21AQI (US)
23rd March 2026
26AQI (US)
24th March 2026
24AQI (US)
25th March 2026
22AQI (US)
26th March 2026
33AQI (US)
27th March 2026
18AQI (US)
28th March 2026
15AQI (US)
29th March 2026
15AQI (US)
30th March 2026
24AQI (US)
31st March 2026
22AQI (US)
1st April 2026
26AQI (US)
2nd April 2026
26AQI (US)
3rd April 2026
24AQI (US)
4th April 2026
26AQI (US)
5th April 2026
22AQI (US)
6th April 2026
26AQI (US)
7th April 2026
28AQI (US)
8th April 2026
35AQI (US)
9th April 2026
18AQI (US)
10th April 2026
27AQI (US)
11th April 2026
30AQI (US)
12th April 2026
27AQI (US)
13th April 2026
32AQI (US)
14th April 2026
30AQI (US)
15th April 2026
22AQI (US)
16th April 2026
29AQI (US)
17th April 2026
18th April 2026
19AQI (US)
19th April 2026
18AQI (US)
20th April 2026
16AQI (US)
21st April 2026
28AQI (US)
22nd April 2026
23rd April 2026
25AQI (US)
24th April 2026
23AQI (US)
25th April 2026
14AQI (US)
26th April 2026
18AQI (US)
27th April 2026
14AQI (US)
28th April 2026
18AQI (US)
29th April 2026
16AQI (US)
30th April 2026
18AQI (US)
1st May 2026
20AQI (US)
2nd May 2026
20AQI (US)
3rd May 2026
22AQI (US)
4th May 2026
28AQI (US)
5th May 2026
36AQI (US)
6th May 2026
18AQI (US)
7th May 2026
18AQI (US)
8th May 2026
28AQI (US)
9th May 2026
10th May 2026
28AQI (US)
11th May 2026
24AQI (US)
12th May 2026
33AQI (US)
13th May 2026
24AQI (US)
14th May 2026
19AQI (US)
15th May 2026
32AQI (US)
16th May 2026
36AQI (US)
17th May 2026
44AQI (US)
18th May 2026
36AQI (US)
19th May 2026
34AQI (US)
20th May 2026
36AQI (US)
21st May 2026
32AQI (US)
22nd May 2026
38AQI (US)
23rd May 2026
37AQI (US)
24th May 2026
34AQI (US)
25th May 2026
33AQI (US)
26th May 2026
20AQI (US)
27th May 2026
22AQI (US)
28th May 2026
24AQI (US)
29th May 2026
18AQI (US)
30th May 2026
15AQI (US)
31st May 2026
24AQI (US)
1st June 2026
19AQI (US)
2nd June 2026
14AQI (US)
3rd June 2026
17AQI (US)
4th June 2026
16AQI (US)
5th June 2026
14AQI (US)
6th June 2026
14AQI (US)
7th June 2026
10AQI (US)
8th June 2026
17AQI (US)
9th June 2026
24AQI (US)
10th June 2026
17AQI (US)
11th June 2026
22AQI (US)
12th June 2026
15AQI (US)
13th June 2026
14AQI (US)
14th June 2026
14AQI (US)
15th June 2026
20AQI (US)
16th June 2026
22AQI (US)
17th June 2026
22AQI (US)
18th June 2026
23AQI (US)
19th June 2026
14AQI (US)
20th June 2026
15AQI (US)
21st June 2026
11AQI (US)
22nd June 2026
17AQI (US)
23rd June 2026
19AQI (US)
24th June 2026
18AQI (US)
25th June 2026
18AQI (US)
26th June 2026
20AQI (US)
27th June 2026
25AQI (US)
28th June 2026
20AQI (US)
29th June 2026
16AQI (US)
30th June 2026
14AQI (US)
1st July 2026
18AQI (US)
2nd July 2026
24AQI (US)
3rd July 2026
24AQI (US)
4th July 2026
18AQI (US)
5th July 2026
22AQI (US)
6th July 2026
14AQI (US)
7th July 2026
18AQI (US)
8th July 2026
20AQI (US)
9th July 2026
21AQI (US)
10th July 2026
24AQI (US)
11th July 2026
17AQI (US)
12th July 2026
14AQI (US)
13th July 2026
17AQI (US)
14th July 2026
20AQI (US)
15th July 2026
16AQI (US)
16th July 2026
18AQI (US)
17th July 2026
56AQI (US)
18th July 2026
56AQI (US)
19th July 2026
52AQI (US)
20th July 2026
51AQI (US)
21st July 2026
42AQI (US)
22nd July 2026
44AQI (US)
23rd July 2026
46AQI (US)
24th July 2026
46AQI (US)
25th July 2026
44AQI (US)
26th July 2026
45AQI (US)
27th July 2026
46AQI (US)
28th July 2026
44AQI (US)
29th July 2026
42AQI (US)
30th July 2026
50AQI (US)
31st July 2026
45AQI (US)
1st August 2026
42AQI (US)
2nd August 2026
40AQI (US)
3rd August 2026
44AQI (US)
4th August 2026
54AQI (US)
5th August 2026
55AQI (US)
6th August 2026
50AQI (US)
7th August 2026
59AQI (US)
8th August 2026
58AQI (US)
9th August 2026
55AQI (US)
10th August 2026
62AQI (US)
11th August 2026
56AQI (US)
12th August 2026
60AQI (US)
13th August 2026
52AQI (US)
14th August 2026
44AQI (US)
15th August 2026
44AQI (US)
16th August 2026
51AQI (US)
17th August 2026
48AQI (US)
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

33AQI (US)

35AQI (US)

26AQI (US)

23AQI (US)

28AQI (US)

17AQI (US)

33AQI (US)

51AQI (US)

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202630AQI (US)

29
2
28
31
28
30
30
27
4
7
10
210
16

Highest AQI (US) recorded in

August

51AQI (US)

Lowest AQI (US) recorded in

June

17AQI (US)

202533AQI (US)

24
7
28
31
30
31
30
31
31
28
2
28
3
23
7
15
16
330
35

Highest AQI (US) recorded in

December

49AQI (US)

Lowest AQI (US) recorded in

May

22AQI (US)

202430AQI (US)

16
1
1
12
29
28
3
27
4
28
31
29
1
24
7
226
15

Highest AQI (US) recorded in

December

39AQI (US)

Lowest AQI (US) recorded in

April

8AQI (US)

202310AQI (US)

3
31
34

Highest AQI (US) recorded in

November

10AQI (US)

Lowest AQI (US) recorded in

December

10AQI (US)

202125AQI (US)

2
2

Highest AQI (US) recorded in

September

25AQI (US)

Lowest AQI (US) recorded in

September

25AQI (US)

2020107AQI (US)

3
3
3
4
3
3
3
4

Highest AQI (US) recorded in

September

107AQI (US)

Lowest AQI (US) recorded in

September

107AQI (US)

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2020(Avg.)
107AQI (US)
Least Polluted Year Recorded
2023(Avg.)
10AQI (US)

Shasta Lake's annual 2026 AQI (US) (30) shows an average percentage change of 27.7% (worsened AQI (US)) compared to previous years: 2020 (107), 2021 (25), 2023 (10), 2024 (30), 2025 (33).