Mount Shasta, 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
Mount Shasta, California, United States
2021
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
15th Aug 2021
183AQILowest AQI recorded on
24th Aug 2024
19AQISame Day Analysis (9th August ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 3rd highest AQI at 24 of Good air quality, showing improvement over 2024 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 9th Aug - 10th Aug 2025
Mount Shasta, California, United States
AQI
Day
Night
.
6 AM9th Aug 2025
8 PM
5 AM10th Aug 2025
Day time
Avg. Highest Time
6AM9th Aug
26AQI
Avg. Lowest Time
7AM9th Aug
20AQI
Night time
Avg. Highest Time
5AM10th Aug
28AQI
Avg. Lowest Time
11PM9th Aug
21AQI
In the last 24 hours,
Mount Shasta's AQI reached its highest point of 28 at 5 AM during the Night, while the lowest point, 20, was recorded at 7 AM during the Day between 9th Aug and 10th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Mount Shasta, California, United States
JulAug
11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 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
Day
Night
11th Jul 2025386 AMAQI
11th Jul 2025337 AMAQI
11th Jul 2025468 AMAQI
11th Jul 2025389 AMAQI
11th Jul 20253810 AMAQI
11th Jul 20253811 AMAQI
11th Jul 20253612 PMAQI
11th Jul 2025401 PMAQI
11th Jul 2025482 PMAQI
11th Jul 2025433 PMAQI
11th Jul 2025394 PMAQI
11th Jul 2025375 PMAQI
11th Jul 2025406 PMAQI
11th Jul 2025397 PMAQI
11th Jul 2025408 PMAQI
11th Jul 2025429 PMAQI
11th Jul 20253510 PMAQI
11th Jul 20253811 PMAQI
12th Jul 20253812 AMAQI
12th Jul 2025401 AMAQI
12th Jul 2025402 AMAQI
12th Jul 2025403 AMAQI
12th Jul 2025414 AMAQI
12th Jul 2025395 AMAQI
--°C/°C
12th Jul 2025446 AMAQI
12th Jul 2025427 AMAQI
12th Jul 2025448 AMAQI
12th Jul 2025429 AMAQI
12th Jul 20254110 AMAQI
12th Jul 20253711 AMAQI
12th Jul 20253812 PMAQI
12th Jul 2025411 PMAQI
12th Jul 2025422 PMAQI
12th Jul 2025383 PMAQI
12th Jul 2025374 PMAQI
12th Jul 2025395 PMAQI
12th Jul 2025406 PMAQI
12th Jul 2025357 PMAQI
12th Jul 2025328 PMAQI
12th Jul 2025309 PMAQI
12th Jul 20253410 PMAQI
12th Jul 20253511 PMAQI
13th Jul 20253612 AMAQI
13th Jul 2025431 AMAQI
13th Jul 2025412 AMAQI
13th Jul 2025423 AMAQI
13th Jul 2025494 AMAQI
13th Jul 2025485 AMAQI
29°C21/37°C
13th Jul 2025406 AMAQI
13th Jul 2025407 AMAQI
13th Jul 2025398 AMAQI
13th Jul 2025429 AMAQI
13th Jul 20254210 AMAQI
13th Jul 20253911 AMAQI
13th Jul 20254212 PMAQI
13th Jul 2025431 PMAQI
13th Jul 2025442 PMAQI
13th Jul 2025403 PMAQI
13th Jul 2025404 PMAQI
13th Jul 2025375 PMAQI
13th Jul 2025366 PMAQI
13th Jul 2025407 PMAQI
13th Jul 2025388 PMAQI
13th Jul 2025389 PMAQI
13th Jul 20253910 PMAQI
13th Jul 20253711 PMAQI
14th Jul 20253812 AMAQI
14th Jul 2025341 AMAQI
14th Jul 2025342 AMAQI
14th Jul 2025373 AMAQI
14th Jul 2025394 AMAQI
14th Jul 2025375 AMAQI
30°C21/39°C
14th Jul 2025376 AMAQI
14th Jul 2025427 AMAQI
14th Jul 2025408 AMAQI
14th Jul 2025449 AMAQI
14th Jul 20254510 AMAQI
14th Jul 20255211 AMAQI
14th Jul 20255212 PMAQI
14th Jul 2025461 PMAQI
14th Jul 2025412 PMAQI
14th Jul 2025463 PMAQI
14th Jul 2025434 PMAQI
14th Jul 2025435 PMAQI
14th Jul 2025456 PMAQI
14th Jul 2025407 PMAQI
14th Jul 2025408 PMAQI
14th Jul 2025369 PMAQI
14th Jul 20254010 PMAQI
14th Jul 20254011 PMAQI
15th Jul 20254212 AMAQI
15th Jul 2025391 AMAQI
15th Jul 2025432 AMAQI
15th Jul 2025463 AMAQI
15th Jul 2025404 AMAQI
15th Jul 2025405 AMAQI
29°C22/38°C
15th Jul 2025436 AMAQI
15th Jul 2025407 AMAQI
15th Jul 2025388 AMAQI
15th Jul 2025429 AMAQI
15th Jul 20254510 AMAQI
15th Jul 20254511 AMAQI
15th Jul 20254812 PMAQI
15th Jul 2025461 PMAQI
15th Jul 2025442 PMAQI
15th Jul 2025403 PMAQI
15th Jul 2025444 PMAQI
15th Jul 2025485 PMAQI
15th Jul 2025506 PMAQI
15th Jul 2025487 PMAQI
15th Jul 2025448 PMAQI
15th Jul 2025469 PMAQI
15th Jul 20254610 PMAQI
15th Jul 20254811 PMAQI
16th Jul 20254712 AMAQI
16th Jul 2025491 AMAQI
16th Jul 2025462 AMAQI
16th Jul 2025483 AMAQI
16th Jul 2025474 AMAQI
16th Jul 2025435 AMAQI
26°C20/33°C
16th Jul 2025456 AMAQI
16th Jul 2025467 AMAQI
16th Jul 2025468 AMAQI
16th Jul 2025409 AMAQI
16th Jul 20254310 AMAQI
16th Jul 20254611 AMAQI
16th Jul 20255212 PMAQI
16th Jul 2025531 PMAQI
16th Jul 2025522 PMAQI
16th Jul 2025533 PMAQI
16th Jul 2025524 PMAQI
16th Jul 2025505 PMAQI
16th Jul 2025536 PMAQI
16th Jul 2025537 PMAQI
16th Jul 2025528 PMAQI
16th Jul 2025499 PMAQI
16th Jul 20255110 PMAQI
16th Jul 20255011 PMAQI
17th Jul 20255112 AMAQI
17th Jul 2025521 AMAQI
17th Jul 2025542 AMAQI
17th Jul 2025533 AMAQI
17th Jul 2025564 AMAQI
17th Jul 2025565 AMAQI
25°C18/32°C
17th Jul 2025556 AMAQI
17th Jul 2025567 AMAQI
17th Jul 2025548 AMAQI
17th Jul 2025549 AMAQI
17th Jul 20255510 AMAQI
17th Jul 20255511 AMAQI
17th Jul 20255512 PMAQI
17th Jul 2025541 PMAQI
17th Jul 2025522 PMAQI
17th Jul 2025523 PMAQI
17th Jul 2025524 PMAQI
17th Jul 2025495 PMAQI
17th Jul 2025506 PMAQI
17th Jul 2025537 PMAQI
17th Jul 2025528 PMAQI
17th Jul 2025539 PMAQI
17th Jul 20255210 PMAQI
17th Jul 20255211 PMAQI
18th Jul 20254912 AMAQI
18th Jul 2025461 AMAQI
18th Jul 2025422 AMAQI
18th Jul 2025433 AMAQI
18th Jul 2025374 AMAQI
18th Jul 2025385 AMAQI
24°C15/30°C
18th Jul 2025406 AMAQI
18th Jul 2025457 AMAQI
18th Jul 2025428 AMAQI
18th Jul 2025429 AMAQI
18th Jul 20254410 AMAQI
18th Jul 20254611 AMAQI
18th Jul 20254912 PMAQI
18th Jul 2025461 PMAQI
18th Jul 2025462 PMAQI
18th Jul 2025463 PMAQI
18th Jul 2025464 PMAQI
18th Jul 2025465 PMAQI
18th Jul 2025506 PMAQI
18th Jul 2025457 PMAQI
18th Jul 2025428 PMAQI
18th Jul 2025449 PMAQI
18th Jul 20254210 PMAQI
18th Jul 20254511 PMAQI
19th Jul 20254012 AMAQI
19th Jul 2025391 AMAQI
19th Jul 2025362 AMAQI
19th Jul 2025363 AMAQI
19th Jul 2025344 AMAQI
19th Jul 2025325 AMAQI
24°C16/31°C
19th Jul 2025346 AMAQI
19th Jul 2025397 AMAQI
19th Jul 2025408 AMAQI
19th Jul 2025439 AMAQI
19th Jul 20254710 AMAQI
19th Jul 20255011 AMAQI
19th Jul 20254612 PMAQI
19th Jul 2025441 PMAQI
19th Jul 2025402 PMAQI
19th Jul 2025363 PMAQI
19th Jul 2025344 PMAQI
19th Jul 2025335 PMAQI
19th Jul 2025366 PMAQI
19th Jul 2025377 PMAQI
19th Jul 2025358 PMAQI
19th Jul 2025279 PMAQI
19th Jul 20252810 PMAQI
19th Jul 20253711 PMAQI
20th Jul 20254212 AMAQI
20th Jul 2025401 AMAQI
20th Jul 2025362 AMAQI
20th Jul 2025393 AMAQI
20th Jul 2025324 AMAQI
20th Jul 2025305 AMAQI
25°C17/32°C
20th Jul 2025266 AMAQI
20th Jul 2025217 AMAQI
20th Jul 2025248 AMAQI
20th Jul 2025329 AMAQI
20th Jul 20253710 AMAQI
20th Jul 20253911 AMAQI
20th Jul 20254212 PMAQI
20th Jul 2025271 PMAQI
20th Jul 2025262 PMAQI
20th Jul 2025273 PMAQI
20th Jul 2025254 PMAQI
20th Jul 2025225 PMAQI
20th Jul 2025216 PMAQI
20th Jul 2025247 PMAQI
20th Jul 2025218 PMAQI
20th Jul 2025229 PMAQI
20th Jul 20252410 PMAQI
20th Jul 20252711 PMAQI
21st Jul 20253412 AMAQI
21st Jul 2025361 AMAQI
21st Jul 2025282 AMAQI
21st Jul 2025253 AMAQI
21st Jul 2025304 AMAQI
21st Jul 2025255 AMAQI
24°C17/30°C
21st Jul 2025246 AMAQI
21st Jul 2025257 AMAQI
21st Jul 2025338 AMAQI
21st Jul 2025299 AMAQI
21st Jul 20252410 AMAQI
21st Jul 20252511 AMAQI
21st Jul 20252912 PMAQI
21st Jul 2025361 PMAQI
21st Jul 2025302 PMAQI
21st Jul 2025323 PMAQI
21st Jul 2025304 PMAQI
21st Jul 2025285 PMAQI
21st Jul 2025296 PMAQI
21st Jul 2025307 PMAQI
21st Jul 2025308 PMAQI
21st Jul 2025229 PMAQI
21st Jul 20252710 PMAQI
21st Jul 20253111 PMAQI
22nd Jul 20253512 AMAQI
22nd Jul 2025351 AMAQI
22nd Jul 2025322 AMAQI
22nd Jul 2025373 AMAQI
22nd Jul 2025374 AMAQI
22nd Jul 2025385 AMAQI
20°C16/25°C
22nd Jul 2025416 AMAQI
22nd Jul 2025407 AMAQI
22nd Jul 2025508 AMAQI
22nd Jul 2025399 AMAQI
22nd Jul 20253810 AMAQI
22nd Jul 20253011 AMAQI
22nd Jul 20253412 PMAQI
22nd Jul 2025351 PMAQI
22nd Jul 2025362 PMAQI
22nd Jul 2025403 PMAQI
22nd Jul 2025444 PMAQI
22nd Jul 2025395 PMAQI
22nd Jul 2025366 PMAQI
22nd Jul 2025297 PMAQI
22nd Jul 2025318 PMAQI
22nd Jul 2025229 PMAQI
22nd Jul 20252210 PMAQI
22nd Jul 20252111 PMAQI
23rd Jul 20252212 AMAQI
23rd Jul 2025211 AMAQI
23rd Jul 2025252 AMAQI
23rd Jul 2025343 AMAQI
23rd Jul 2025304 AMAQI
23rd Jul 2025285 AMAQI
20°C13/27°C
23rd Jul 2025306 AMAQI
23rd Jul 2025227 AMAQI
23rd Jul 2025248 AMAQI
23rd Jul 2025299 AMAQI
23rd Jul 20253910 AMAQI
23rd Jul 20254111 AMAQI
23rd Jul 20253812 PMAQI
23rd Jul 2025311 PMAQI
23rd Jul 2025342 PMAQI
23rd Jul 2025313 PMAQI
23rd Jul 2025284 PMAQI
23rd Jul 2025225 PMAQI
23rd Jul 2025226 PMAQI
23rd Jul 2025257 PMAQI
23rd Jul 2025238 PMAQI
23rd Jul 2025269 PMAQI
23rd Jul 20252710 PMAQI
23rd Jul 20252611 PMAQI
24th Jul 20252712 AMAQI
24th Jul 2025271 AMAQI
24th Jul 2025272 AMAQI
24th Jul 2025263 AMAQI
24th Jul 2025284 AMAQI
24th Jul 2025305 AMAQI
21°C12/29°C
24th Jul 2025316 AMAQI
24th Jul 2025327 AMAQI
24th Jul 2025298 AMAQI
24th Jul 2025299 AMAQI
24th Jul 20253610 AMAQI
24th Jul 20254011 AMAQI
24th Jul 20254012 PMAQI
24th Jul 2025351 PMAQI
24th Jul 2025322 PMAQI
24th Jul 2025313 PMAQI
24th Jul 2025314 PMAQI
24th Jul 2025285 PMAQI
24th Jul 2025286 PMAQI
24th Jul 2025297 PMAQI
24th Jul 2025308 PMAQI
24th Jul 2025309 PMAQI
24th Jul 20252810 PMAQI
24th Jul 20252811 PMAQI
25th Jul 20252612 AMAQI
25th Jul 2025241 AMAQI
25th Jul 2025242 AMAQI
25th Jul 2025243 AMAQI
25th Jul 2025214 AMAQI
25th Jul 2025215 AMAQI
20°C13/29°C
25th Jul 2025226 AMAQI
25th Jul 2025257 AMAQI
25th Jul 2025248 AMAQI
25th Jul 2025269 AMAQI
25th Jul 20252610 AMAQI
25th Jul 20252711 AMAQI
25th Jul 20253012 PMAQI
25th Jul 2025281 PMAQI
25th Jul 2025282 PMAQI
25th Jul 2025283 PMAQI
25th Jul 2025284 PMAQI
25th Jul 2025255 PMAQI
25th Jul 2025256 PMAQI
25th Jul 2025247 PMAQI
25th Jul 2025278 PMAQI
25th Jul 2025289 PMAQI
25th Jul 20252010 PMAQI
25th Jul 20252011 PMAQI
26th Jul 20252112 AMAQI
26th Jul 2025241 AMAQI
26th Jul 2025242 AMAQI
26th Jul 2025263 AMAQI
26th Jul 2025244 AMAQI
26th Jul 2025245 AMAQI
22°C14/31°C
26th Jul 2025256 AMAQI
26th Jul 2025267 AMAQI
26th Jul 2025248 AMAQI
26th Jul 2025269 AMAQI
26th Jul 20252510 AMAQI
26th Jul 20252511 AMAQI
26th Jul 20252612 PMAQI
26th Jul 2025301 PMAQI
26th Jul 2025282 PMAQI
26th Jul 2025293 PMAQI
26th Jul 2025304 PMAQI
26th Jul 2025285 PMAQI
26th Jul 2025226 PMAQI
26th Jul 2025247 PMAQI
26th Jul 2025248 PMAQI
26th Jul 2025229 PMAQI
26th Jul 20252810 PMAQI
26th Jul 20252311 PMAQI
27th Jul 20252212 AMAQI
27th Jul 2025231 AMAQI
27th Jul 2025232 AMAQI
27th Jul 2025223 AMAQI
27th Jul 2025224 AMAQI
27th Jul 2025235 AMAQI
20°C12/27°C
27th Jul 2025266 AMAQI
27th Jul 2025227 AMAQI
27th Jul 2025218 AMAQI
27th Jul 2025209 AMAQI
27th Jul 20252110 AMAQI
27th Jul 20251911 AMAQI
27th Jul 20252012 PMAQI
27th Jul 2025221 PMAQI
27th Jul 2025242 PMAQI
27th Jul 2025223 PMAQI
27th Jul 2025224 PMAQI
27th Jul 2025225 PMAQI
27th Jul 2025206 PMAQI
27th Jul 2025247 PMAQI
27th Jul 2025248 PMAQI
27th Jul 2025239 PMAQI
27th Jul 20252210 PMAQI
27th Jul 20252111 PMAQI
28th Jul 20252112 AMAQI
28th Jul 2025231 AMAQI
28th Jul 2025262 AMAQI
28th Jul 2025273 AMAQI
28th Jul 2025274 AMAQI
28th Jul 2025245 AMAQI
21°C14/29°C
28th Jul 2025226 AMAQI
28th Jul 2025247 AMAQI
28th Jul 2025238 AMAQI
28th Jul 2025269 AMAQI
28th Jul 20252210 AMAQI
28th Jul 20252211 AMAQI
28th Jul 20252412 PMAQI
28th Jul 2025341 PMAQI
28th Jul 2025322 PMAQI
28th Jul 2025303 PMAQI
28th Jul 2025264 PMAQI
28th Jul 2025235 PMAQI
28th Jul 2025236 PMAQI
28th Jul 2025237 PMAQI
28th Jul 2025238 PMAQI
28th Jul 2025239 PMAQI
28th Jul 20252410 PMAQI
28th Jul 20252511 PMAQI
29th Jul 20252412 AMAQI
29th Jul 2025321 AMAQI
29th Jul 2025282 AMAQI
29th Jul 2025293 AMAQI
29th Jul 2025284 AMAQI
29th Jul 2025265 AMAQI
23°C16/30°C
29th Jul 2025286 AMAQI
29th Jul 2025287 AMAQI
29th Jul 2025278 AMAQI
29th Jul 2025279 AMAQI
29th Jul 20252710 AMAQI
29th Jul 20253011 AMAQI
29th Jul 20253112 PMAQI
29th Jul 2025321 PMAQI
29th Jul 2025282 PMAQI
29th Jul 2025253 PMAQI
29th Jul 2025244 PMAQI
29th Jul 2025235 PMAQI
29th Jul 2025226 PMAQI
29th Jul 2025267 PMAQI
29th Jul 2025258 PMAQI
29th Jul 2025239 PMAQI
29th Jul 20252110 PMAQI
29th Jul 20252211 PMAQI
30th Jul 20252812 AMAQI
30th Jul 2025271 AMAQI
30th Jul 2025312 AMAQI
30th Jul 2025263 AMAQI
30th Jul 2025284 AMAQI
30th Jul 2025285 AMAQI
24°C16/32°C
30th Jul 2025296 AMAQI
30th Jul 2025287 AMAQI
30th Jul 2025268 AMAQI
30th Jul 2025289 AMAQI
30th Jul 20252810 AMAQI
30th Jul 20253011 AMAQI
30th Jul 20252912 PMAQI
30th Jul 2025281 PMAQI
30th Jul 2025262 PMAQI
30th Jul 2025263 PMAQI
30th Jul 2025264 PMAQI
30th Jul 2025265 PMAQI
30th Jul 2025266 PMAQI
30th Jul 2025267 PMAQI
30th Jul 2025268 PMAQI
30th Jul 2025249 PMAQI
30th Jul 20252310 PMAQI
30th Jul 20252111 PMAQI
31st Jul 20252212 AMAQI
31st Jul 2025231 AMAQI
31st Jul 2025242 AMAQI
31st Jul 2025263 AMAQI
31st Jul 2025284 AMAQI
31st Jul 2025295 AMAQI
23°C17/31°C
31st Jul 2025386 AMAQI
31st Jul 2025487 AMAQI
31st Jul 2025308 AMAQI
31st Jul 2025629 AMAQI
31st Jul 20252810 AMAQI
31st Jul 20253211 AMAQI
31st Jul 20252812 PMAQI
31st Jul 2025301 PMAQI
31st Jul 2025302 PMAQI
31st Jul 2025343 PMAQI
31st Jul 2025344 PMAQI
31st Jul 2025275 PMAQI
31st Jul 2025286 PMAQI
31st Jul 2025257 PMAQI
31st Jul 2025258 PMAQI
31st Jul 2025279 PMAQI
31st Jul 20253010 PMAQI
31st Jul 20252811 PMAQI
1st Aug 20252712 AMAQI
1st Aug 2025261 AMAQI
1st Aug 2025272 AMAQI
1st Aug 2025283 AMAQI
1st Aug 2025284 AMAQI
1st Aug 2025285 AMAQI
22°C16/30°C
1st Aug 2025296 AMAQI
1st Aug 2025287 AMAQI
1st Aug 2025308 AMAQI
1st Aug 2025349 AMAQI
1st Aug 20253410 AMAQI
1st Aug 20254611 AMAQI
1st Aug 20254112 PMAQI
1st Aug 2025421 PMAQI
1st Aug 2025432 PMAQI
1st Aug 2025383 PMAQI
1st Aug 2025344 PMAQI
1st Aug 2025285 PMAQI
1st Aug 2025316 PMAQI
1st Aug 2025317 PMAQI
1st Aug 2025308 PMAQI
1st Aug 2025269 PMAQI
1st Aug 20252710 PMAQI
1st Aug 20252911 PMAQI
2nd Aug 20253212 AMAQI
2nd Aug 2025351 AMAQI
2nd Aug 2025362 AMAQI
2nd Aug 2025323 AMAQI
2nd Aug 2025344 AMAQI
2nd Aug 2025355 AMAQI
23°C16/32°C
2nd Aug 2025336 AMAQI
2nd Aug 2025337 AMAQI
2nd Aug 2025328 AMAQI
2nd Aug 2025329 AMAQI
2nd Aug 20253010 AMAQI
2nd Aug 20253011 AMAQI
2nd Aug 20252812 PMAQI
2nd Aug 2025321 PMAQI
2nd Aug 2025332 PMAQI
2nd Aug 2025343 PMAQI
2nd Aug 2025344 PMAQI
2nd Aug 2025315 PMAQI
2nd Aug 2025336 PMAQI
2nd Aug 2025317 PMAQI
2nd Aug 2025288 PMAQI
2nd Aug 2025259 PMAQI
2nd Aug 20252310 PMAQI
2nd Aug 20252311 PMAQI
3rd Aug 20252512 AMAQI
3rd Aug 2025281 AMAQI
3rd Aug 2025292 AMAQI
3rd Aug 2025283 AMAQI
3rd Aug 2025304 AMAQI
3rd Aug 2025305 AMAQI
24°C16/31°C
3rd Aug 2025286 AMAQI
3rd Aug 2025277 AMAQI
3rd Aug 2025258 AMAQI
3rd Aug 2025259 AMAQI
3rd Aug 20252410 AMAQI
3rd Aug 20252911 AMAQI
3rd Aug 20253012 PMAQI
3rd Aug 2025331 PMAQI
3rd Aug 2025312 PMAQI
3rd Aug 2025263 PMAQI
3rd Aug 2025264 PMAQI
3rd Aug 2025295 PMAQI
3rd Aug 2025296 PMAQI
3rd Aug 2025287 PMAQI
3rd Aug 2025308 PMAQI
3rd Aug 2025309 PMAQI
3rd Aug 20253010 PMAQI
3rd Aug 20253111 PMAQI
4th Aug 20253012 AMAQI
4th Aug 2025241 AMAQI
4th Aug 2025252 AMAQI
4th Aug 2025243 AMAQI
4th Aug 2025254 AMAQI
4th Aug 2025245 AMAQI
23°C16/29°C
4th Aug 2025246 AMAQI
4th Aug 2025247 AMAQI
4th Aug 2025238 AMAQI
4th Aug 2025279 AMAQI
4th Aug 20252610 AMAQI
4th Aug 20252811 AMAQI
4th Aug 20253212 PMAQI
4th Aug 2025381 PMAQI
4th Aug 2025382 PMAQI
4th Aug 2025323 PMAQI
4th Aug 2025334 PMAQI
4th Aug 2025305 PMAQI
4th Aug 2025236 PMAQI
4th Aug 2025247 PMAQI
4th Aug 2025228 PMAQI
4th Aug 2025239 PMAQI
4th Aug 20252210 PMAQI
4th Aug 20252111 PMAQI
5th Aug 20252412 AMAQI
5th Aug 2025241 AMAQI
5th Aug 2025232 AMAQI
5th Aug 2025243 AMAQI
5th Aug 2025224 AMAQI
5th Aug 2025215 AMAQI
20°C13/26°C
5th Aug 2025226 AMAQI
5th Aug 2025227 AMAQI
5th Aug 2025248 AMAQI
5th Aug 2025239 AMAQI
5th Aug 20252610 AMAQI
5th Aug 20252811 AMAQI
5th Aug 20252712 PMAQI
5th Aug 2025271 PMAQI
5th Aug 2025272 PMAQI
5th Aug 2025253 PMAQI
5th Aug 2025264 PMAQI
5th Aug 2025265 PMAQI
5th Aug 2025286 PMAQI
5th Aug 2025247 PMAQI
5th Aug 2025258 PMAQI
5th Aug 2025249 PMAQI
5th Aug 20252610 PMAQI
5th Aug 20252511 PMAQI
6th Aug 20252612 AMAQI
6th Aug 2025281 AMAQI
6th Aug 2025262 AMAQI
6th Aug 2025243 AMAQI
6th Aug 2025244 AMAQI
6th Aug 2025245 AMAQI
21°C14/29°C
6th Aug 2025236 AMAQI
6th Aug 2025227 AMAQI
6th Aug 2025248 AMAQI
6th Aug 2025269 AMAQI
6th Aug 20252810 AMAQI
6th Aug 20253311 AMAQI
6th Aug 20253412 PMAQI
6th Aug 2025351 PMAQI
6th Aug 2025312 PMAQI
6th Aug 2025293 PMAQI
6th Aug 2025284 PMAQI
6th Aug 2025255 PMAQI
6th Aug 2025266 PMAQI
6th Aug 2025247 PMAQI
6th Aug 2025228 PMAQI
6th Aug 2025199 PMAQI
6th Aug 20251910 PMAQI
6th Aug 20252011 PMAQI
7th Aug 20252212 AMAQI
7th Aug 2025221 AMAQI
7th Aug 2025232 AMAQI
7th Aug 2025223 AMAQI
7th Aug 2025214 AMAQI
7th Aug 2025225 AMAQI
22°C15/29°C
7th Aug 2025216 AMAQI
7th Aug 2025217 AMAQI
7th Aug 2025218 AMAQI
7th Aug 2025219 AMAQI
7th Aug 20254010 AMAQI
7th Aug 20252411 AMAQI
7th Aug 20252512 PMAQI
7th Aug 2025241 PMAQI
7th Aug 2025242 PMAQI
7th Aug 2025233 PMAQI
7th Aug 2025244 PMAQI
7th Aug 2025225 PMAQI
7th Aug 2025236 PMAQI
7th Aug 2025227 PMAQI
7th Aug 2025218 PMAQI
7th Aug 2025219 PMAQI
7th Aug 20252210 PMAQI
7th Aug 20252111 PMAQI
8th Aug 20252212 AMAQI
8th Aug 2025211 AMAQI
8th Aug 2025202 AMAQI
8th Aug 2025213 AMAQI
8th Aug 2025204 AMAQI
8th Aug 2025205 AMAQI
22°C15/30°C
8th Aug 2025206 AMAQI
8th Aug 2025207 AMAQI
8th Aug 2025228 AMAQI
8th Aug 2025219 AMAQI
8th Aug 20252310 AMAQI
8th Aug 20252411 AMAQI
8th Aug 20252712 PMAQI
8th Aug 2025281 PMAQI
8th Aug 2025242 PMAQI
8th Aug 2025253 PMAQI
8th Aug 2025224 PMAQI
8th Aug 2025215 PMAQI
8th Aug 2025226 PMAQI
8th Aug 2025227 PMAQI
8th Aug 2025218 PMAQI
8th Aug 2025209 PMAQI
8th Aug 20252010 PMAQI
8th Aug 20252211 PMAQI
9th Aug 20252412 AMAQI
9th Aug 2025241 AMAQI
9th Aug 2025242 AMAQI
9th Aug 2025253 AMAQI
9th Aug 2025274 AMAQI
9th Aug 2025295 AMAQI
25°C16/33°C
9th Aug 2025266 AMAQI
9th Aug 2025207 AMAQI
9th Aug 2025248 AMAQI
9th Aug 2025249 AMAQI
9th Aug 20252410 AMAQI
9th Aug 20252311 AMAQI
9th Aug 20252212 PMAQI
9th Aug 2025231 PMAQI
9th Aug 2025232 PMAQI
9th Aug 2025233 PMAQI
9th Aug 2025224 PMAQI
9th Aug 2025225 PMAQI
9th Aug 2025246 PMAQI
9th Aug 2025247 PMAQI
9th Aug 2025238 PMAQI
9th Aug 2025229 PMAQI
9th Aug 20252110 PMAQI
9th Aug 20252111 PMAQI
10th Aug 20252412 AMAQI
10th Aug 2025271 AMAQI
10th Aug 2025252 AMAQI
10th Aug 2025243 AMAQI
10th Aug 2025274 AMAQI
10th Aug 2025285 AMAQI
27°C18/35°C
10th Aug 2025286 AMAQI
6 AM10th Aug 2025287 AMAQI
10th Aug 2025268 AMAQI
10th Aug 2025229 AMAQI
10th Aug 20252310 AMAQI
10th Aug 20252511 AMAQI
10th Aug 20253212 PMAQI
10th Aug 2025321 PMAQI
1 PM10th Aug 2025292 PMAQI
10th Aug 2025263 PMAQI
10th Aug 2025264 PMAQI
10th Aug 2025245 PMAQI
10th Aug 2025246 PMAQI
10th Aug 2025237 PMAQI
10th Aug 2025248 PMAQI
8 PM10th Aug 2025229 PMAQI
10th Aug 20252010 PMAQI
10th Aug 20252111 PMAQI
1 AM
5 AM
28°C21/37°C
Day time
Avg. Highest Time
9 AM - 4 PM
34AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
5 PM - 8 PM
31AQI
4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 AM to 4 PM (Avg. 34), while the lowest AQI was between 5 PM to 8 PM (Avg. 31).
Night time
Avg. Highest Time
12 AM - 5 AM
31AQI
6 hours / Day
180 hours / Month
Avg. Lowest Time
9 PM - 11 PM
29AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 5 AM (Avg. 31), while the lowest AQI was between 9 PM to 11 PM (Avg. 29).
2025 Days Vs Air Quality
Mount Shasta, California, United States
2025
98%
216
2%
5
Total number of days with different AQI categories in last 223 days in 2025 (142 days remaining)
Good
216 DaysModerate
5 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 98%
Health Risk Level:
Very Low
In 2025, 98% of 223 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
Mount Shasta, California, United States
AQI levels in 2025
AQI
PM2.5
PM10
CO
SO2
NO2
O3
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
1st January 2025
40AQI
40AQI
2nd January 2025
40AQI
40AQI
3rd January 2025
31AQI
31AQI
4th January 2025
27AQI
27AQI
5th January 2025
33AQI
33AQI
6th January 2025
27AQI
27AQI
7th January 2025
28AQI
28AQI
8th January 2025
31AQI
31AQI
9th January 2025
42AQI
42AQI
10th January 2025
40AQI
40AQI
11th January 2025
28AQI
28AQI
12th January 2025
32AQI
32AQI
13th January 2025
29AQI
29AQI
14th January 2025
47AQI
47AQI
15th January 2025
52AQI
52AQI
16th January 2025
48AQI
48AQI
17th January 2025
46AQI
46AQI
18th January 2025
50AQI
50AQI
19th January 2025
45AQI
45AQI
20th January 2025
32AQI
32AQI
21st January 2025
44AQI
44AQI
22nd January 2025
45AQI
45AQI
23rd January 2025
44AQI
44AQI
24th January 2025
46AQI
46AQI
25th January 2025
28AQI
28AQI
26th January 2025
40AQI
40AQI
27th January 2025
51AQI
51AQI
28th January 2025
53AQI
53AQI
29th January 2025
50AQI
50AQI
30th January 2025
53AQI
53AQI
31st January 2025
42AQI
42AQI
1st February 2025
28AQI
28AQI
2nd February 2025
24AQI
24AQI
3rd February 2025
26AQI
26AQI
4th February 2025
27AQI
27AQI
5th February 2025
27AQI
27AQI
6th February 2025
34AQI
34AQI
7th February 2025
26AQI
26AQI
8th February 2025
37AQI
37AQI
9th February 2025
37AQI
37AQI
10th February 2025
28AQI
28AQI
11th February 2025
38AQI
38AQI
12th February 2025
43AQI
43AQI
13th February 2025
33AQI
33AQI
14th February 2025
27AQI
27AQI
15th February 2025
25AQI
25AQI
16th February 2025
29AQI
29AQI
17th February 2025
29AQI
29AQI
18th February 2025
33AQI
33AQI
19th February 2025
37AQI
37AQI
20th February 2025
32AQI
32AQI
21st February 2025
33AQI
33AQI
22nd February 2025
33AQI
33AQI
23rd February 2025
23AQI
23AQI
24th February 2025
23AQI
23AQI
25th February 2025
22AQI
22AQI
26th February 2025
28AQI
28AQI
27th February 2025
28AQI
28AQI
28th February 2025
33AQI
33AQI
1st March 2025
33AQI
33AQI
2nd March 2025
25AQI
25AQI
3rd March 2025
30AQI
30AQI
4th March 2025
33AQI
33AQI
5th March 2025
30AQI
30AQI
6th March 2025
30AQI
30AQI
7th March 2025
27AQI
27AQI
8th March 2025
28AQI
28AQI
9th March 2025
24AQI
24AQI
10th March 2025
28AQI
28AQI
11th March 2025
28AQI
28AQI
12th March 2025
20AQI
20AQI
13th March 2025
20AQI
20AQI
14th March 2025
19AQI
19AQI
15th March 2025
19AQI
19AQI
16th March 2025
19AQI
19AQI
17th March 2025
21AQI
21AQI
18th March 2025
22AQI
22AQI
19th March 2025
23AQI
23AQI
20th March 2025
18AQI
18AQI
21st March 2025
25AQI
25AQI
22nd March 2025
18AQI
18AQI
23rd March 2025
18AQI
18AQI
24th March 2025
21AQI
21AQI
25th March 2025
23AQI
23AQI
26th March 2025
27AQI
27AQI
27th March 2025
21AQI
21AQI
28th March 2025
24AQI
24AQI
29th March 2025
26AQI
26AQI
30th March 2025
29AQI
29AQI
31st March 2025
22AQI
22AQI
1st April 2025
27AQI
27AQI
2nd April 2025
22AQI
22AQI
3rd April 2025
25AQI
25AQI
4th April 2025
30AQI
30AQI
5th April 2025
24AQI
24AQI
6th April 2025
24AQI
24AQI
7th April 2025
17AQI
17AQI
8th April 2025
20AQI
20AQI
9th April 2025
21AQI
21AQI
10th April 2025
22AQI
22AQI
11th April 2025
23AQI
23AQI
12th April 2025
22AQI
22AQI
13th April 2025
25AQI
25AQI
14th April 2025
27AQI
27AQI
15th April 2025
31AQI
31AQI
16th April 2025
30AQI
30AQI
17th April 2025
27AQI
27AQI
18th April 2025
26AQI
26AQI
19th April 2025
22AQI
22AQI
20th April 2025
25AQI
25AQI
21st April 2025
20AQI
20AQI
22nd April 2025
25AQI
25AQI
23rd April 2025
26AQI
26AQI
24th April 2025
33AQI
33AQI
25th April 2025
31AQI
31AQI
26th April 2025
22AQI
22AQI
27th April 2025
21AQI
21AQI
28th April 2025
21AQI
21AQI
29th April 2025
20AQI
20AQI
30th April 2025
23AQI
23AQI
1st May 2025
26AQI
26AQI
2nd May 2025
27AQI
27AQI
3rd May 2025
24AQI
24AQI
4th May 2025
20AQI
20AQI
5th May 2025
21AQI
21AQI
6th May 2025
18AQI
18AQI
7th May 2025
22AQI
22AQI
8th May 2025
27AQI
27AQI
9th May 2025
24AQI
24AQI
10th May 2025
25AQI
25AQI
11th May 2025
21AQI
21AQI
12th May 2025
24AQI
24AQI
13th May 2025
19AQI
19AQI
14th May 2025
17AQI
17AQI
15th May 2025
19AQI
19AQI
16th May 2025
23AQI
23AQI
17th May 2025
20AQI
20AQI
18th May 2025
22AQI
22AQI
19th May 2025
22AQI
22AQI
20th May 2025
19AQI
19AQI
21st May 2025
23AQI
23AQI
22nd May 2025
20AQI
20AQI
23rd May 2025
25AQI
25AQI
24th May 2025
26AQI
26AQI
25th May 2025
26AQI
26AQI
26th May 2025
19AQI
19AQI
27th May 2025
21AQI
21AQI
28th May 2025
30AQI
30AQI
29th May 2025
23AQI
23AQI
30th May 2025
26AQI
26AQI
31st May 2025
27AQI
27AQI
1st June 2025
29AQI
29AQI
2nd June 2025
23AQI
23AQI
3rd June 2025
23AQI
23AQI
4th June 2025
24AQI
24AQI
5th June 2025
29AQI
29AQI
6th June 2025
28AQI
28AQI
7th June 2025
32AQI
32AQI
8th June 2025
29AQI
29AQI
9th June 2025
30AQI
30AQI
10th June 2025
29AQI
29AQI
11th June 2025
34AQI
34AQI
12th June 2025
35AQI
35AQI
13th June 2025
34AQI
34AQI
14th June 2025
30AQI
30AQI
15th June 2025
28AQI
28AQI
16th June 2025
26AQI
26AQI
17th June 2025
26AQI
26AQI
18th June 2025
23AQI
23AQI
19th June 2025
30AQI
30AQI
20th June 2025
30AQI
30AQI
21st June 2025
27AQI
27AQI
22nd June 2025
26AQI
26AQI
23rd June 2025
21AQI
21AQI
24th June 2025
25AQI
25AQI
25th June 2025
30AQI
30AQI
26th June 2025
26AQI
26AQI
27th June 2025
24AQI
24AQI
28th June 2025
23AQI
23AQI
29th June 2025
24AQI
24AQI
30th June 2025
27AQI
27AQI
1st July 2025
31AQI
31AQI
2nd July 2025
32AQI
32AQI
3rd July 2025
28AQI
28AQI
4th July 2025
27AQI
27AQI
5th July 2025
29AQI
29AQI
6th July 2025
31AQI
31AQI
7th July 2025
29AQI
29AQI
8th July 2025
29AQI
29AQI
9th July 2025
30AQI
30AQI
10th July 2025
40AQI
40AQI
11th July 2025
39AQI
39AQI
12th July 2025
38AQI
38AQI
13th July 2025
41AQI
41AQI
14th July 2025
41AQI
41AQI
15th July 2025
44AQI
44AQI
16th July 2025
49AQI
49AQI
17th July 2025
53AQI
53AQI
18th July 2025
44AQI
44AQI
19th July 2025
37AQI
37AQI
20th July 2025
30AQI
30AQI
21st July 2025
29AQI
29AQI
22nd July 2025
34AQI
34AQI
23rd July 2025
28AQI
28AQI
24th July 2025
30AQI
30AQI
25th July 2025
25AQI
25AQI
26th July 2025
25AQI
25AQI
27th July 2025
22AQI
22AQI
28th July 2025
25AQI
25AQI
29th July 2025
27AQI
27AQI
30th July 2025
27AQI
27AQI
31st July 2025
29AQI
29AQI
1st August 2025
31AQI
31AQI
2nd August 2025
31AQI
31AQI
3rd August 2025
29AQI
29AQI
4th August 2025
26AQI
26AQI
5th August 2025
25AQI
25AQI
6th August 2025
25AQI
25AQI
7th August 2025
23AQI
23AQI
8th August 2025
22AQI
22AQI
9th August 2025
24AQI
24AQI
40AQI
30AQI
24AQI
24AQI
23AQI
28AQI
33AQI
26AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202529AQI
27
4
28
31
30
31
30
30
1
9
216
5
Highest AQI recorded in
January40AQI
Lowest AQI recorded in
May23AQI
202431AQI
16
1
12
29
27
4
27
4
28
30
1
30
24
7
224
16
Highest AQI recorded in
December38AQI
Lowest AQI recorded in
March13AQI
202314AQI
3
31
34
Highest AQI recorded in
November15AQI
Lowest AQI recorded in
December14AQI
202165AQI
8
22
12
11
18
2
1
4
5
14
8
14
11
5
11
6
4
1
1
4
1
77
56
21
9
Highest AQI recorded in
August121AQI
Lowest AQI recorded in
October26AQI
202075AQI
2
2
5
12
10
3
1
1
1
12
4
26
1
13
52
12
3
Highest AQI recorded in
September91AQI
Lowest AQI recorded in
August57AQI
Most & Least Polluted Years Over the Last 5 Years
Most Polluted Year Recorded
2020(Avg.)
75AQILeast Polluted Year Recorded
2023(Avg.)
14AQIMount Shasta's annual 2025 AQI (29) shows an average percentage change of -5.4% (improved AQI) compared to previous years: 2020 (75), 2021 (65), 2023 (14), 2024 (31).
