Etna, Yreka, 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
Etna, Yreka, California, United States
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
28th Aug 2023
209AQILowest AQI recorded on
24th Aug 2024
20AQISame Day Analysis (12th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 37 of Good air quality, showing improvement over 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 12th Aug - 13th Aug 2025
Etna, Yreka, California, United States
AQI
Day
Night
.
6 AM12th Aug 2025
8 PM
5 AM13th Aug 2025
Day time
Avg. Highest Time
1PM12th Aug
48AQI
Avg. Lowest Time
8PM12th Aug
33AQI
Night time
Avg. Highest Time
2AM13th Aug
33AQI
Avg. Lowest Time
12AM13th Aug
26AQI
In the last 24 hours,
Etna's AQI reached its highest point of 48 at 1 PM during the Day, while the lowest point, 26, was recorded at 12 AM during the Night between 12th Aug and 13th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Etna, Yreka, California, United States
JulAug
14th - 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 - 11th11th - 12th12th - 13th13th
Day
Night
14th Jul 2025356 AMAQI
14th Jul 2025347 AMAQI
14th Jul 2025318 AMAQI
14th Jul 2025339 AMAQI
14th Jul 20253810 AMAQI
14th Jul 20254111 AMAQI
14th Jul 20254412 PMAQI
14th Jul 2025381 PMAQI
14th Jul 2025322 PMAQI
14th Jul 2025363 PMAQI
14th Jul 2025344 PMAQI
14th Jul 2025345 PMAQI
14th Jul 2025366 PMAQI
14th Jul 2025327 PMAQI
14th Jul 2025328 PMAQI
14th Jul 2025269 PMAQI
14th Jul 20253410 PMAQI
14th Jul 20253511 PMAQI
15th Jul 20253912 AMAQI
15th Jul 2025361 AMAQI
15th Jul 2025372 AMAQI
15th Jul 2025403 AMAQI
15th Jul 2025344 AMAQI
15th Jul 2025345 AMAQI
27°C17/34°C
15th Jul 2025376 AMAQI
15th Jul 2025407 AMAQI
15th Jul 2025398 AMAQI
15th Jul 2025329 AMAQI
15th Jul 20253610 AMAQI
15th Jul 20254211 AMAQI
15th Jul 20254412 PMAQI
15th Jul 2025371 PMAQI
15th Jul 2025362 PMAQI
15th Jul 2025333 PMAQI
15th Jul 2025354 PMAQI
15th Jul 2025405 PMAQI
15th Jul 2025386 PMAQI
15th Jul 2025357 PMAQI
15th Jul 2025388 PMAQI
15th Jul 2025449 PMAQI
15th Jul 20254510 PMAQI
15th Jul 20254211 PMAQI
16th Jul 20254312 AMAQI
16th Jul 2025431 AMAQI
16th Jul 2025402 AMAQI
16th Jul 2025463 AMAQI
16th Jul 2025484 AMAQI
16th Jul 2025445 AMAQI
26°C15/34°C
16th Jul 2025446 AMAQI
16th Jul 2025457 AMAQI
16th Jul 2025478 AMAQI
16th Jul 2025359 AMAQI
16th Jul 20253910 AMAQI
16th Jul 20254411 AMAQI
16th Jul 20255212 PMAQI
16th Jul 2025531 PMAQI
16th Jul 2025532 PMAQI
16th Jul 2025463 PMAQI
16th Jul 2025424 PMAQI
16th Jul 2025425 PMAQI
16th Jul 2025486 PMAQI
16th Jul 2025527 PMAQI
16th Jul 2025518 PMAQI
16th Jul 2025519 PMAQI
16th Jul 20255210 PMAQI
16th Jul 20255011 PMAQI
17th Jul 20255212 AMAQI
17th Jul 2025521 AMAQI
17th Jul 2025532 AMAQI
17th Jul 2025543 AMAQI
17th Jul 2025554 AMAQI
17th Jul 2025555 AMAQI
26°C17/33°C
17th Jul 2025546 AMAQI
17th Jul 2025547 AMAQI
17th Jul 2025538 AMAQI
17th Jul 2025549 AMAQI
17th Jul 20255310 AMAQI
17th Jul 20255411 AMAQI
17th Jul 20255412 PMAQI
17th Jul 2025501 PMAQI
17th Jul 2025502 PMAQI
17th Jul 2025503 PMAQI
17th Jul 2025514 PMAQI
17th Jul 2025465 PMAQI
17th Jul 2025486 PMAQI
17th Jul 2025537 PMAQI
17th Jul 2025528 PMAQI
17th Jul 2025539 PMAQI
17th Jul 20255310 PMAQI
17th Jul 20255211 PMAQI
18th Jul 20255012 AMAQI
18th Jul 2025471 AMAQI
18th Jul 2025472 AMAQI
18th Jul 2025493 AMAQI
18th Jul 2025434 AMAQI
18th Jul 2025435 AMAQI
25°C16/32°C
18th Jul 2025446 AMAQI
18th Jul 2025467 AMAQI
18th Jul 2025458 AMAQI
18th Jul 2025469 AMAQI
18th Jul 20254510 AMAQI
18th Jul 20254611 AMAQI
18th Jul 20255212 PMAQI
18th Jul 2025461 PMAQI
18th Jul 2025462 PMAQI
18th Jul 2025473 PMAQI
18th Jul 2025464 PMAQI
18th Jul 2025515 PMAQI
18th Jul 2025546 PMAQI
18th Jul 2025477 PMAQI
18th Jul 2025478 PMAQI
18th Jul 2025529 PMAQI
18th Jul 20255310 PMAQI
18th Jul 20255111 PMAQI
19th Jul 20254612 AMAQI
19th Jul 2025401 AMAQI
19th Jul 2025382 AMAQI
19th Jul 2025393 AMAQI
19th Jul 2025394 AMAQI
19th Jul 2025365 AMAQI
24°C16/32°C
19th Jul 2025356 AMAQI
19th Jul 2025387 AMAQI
19th Jul 2025388 AMAQI
19th Jul 2025439 AMAQI
19th Jul 20255010 AMAQI
19th Jul 20255211 AMAQI
19th Jul 20255012 PMAQI
19th Jul 2025481 PMAQI
19th Jul 2025422 PMAQI
19th Jul 2025393 PMAQI
19th Jul 2025364 PMAQI
19th Jul 2025355 PMAQI
19th Jul 2025326 PMAQI
19th Jul 2025347 PMAQI
19th Jul 2025408 PMAQI
19th Jul 2025249 PMAQI
19th Jul 20252410 PMAQI
19th Jul 20254011 PMAQI
20th Jul 20254312 AMAQI
20th Jul 2025401 AMAQI
20th Jul 2025402 AMAQI
20th Jul 2025373 AMAQI
20th Jul 2025284 AMAQI
20th Jul 2025255 AMAQI
23°C10/32°C
20th Jul 2025236 AMAQI
20th Jul 2025207 AMAQI
20th Jul 2025248 AMAQI
20th Jul 2025329 AMAQI
20th Jul 20253410 AMAQI
20th Jul 20253611 AMAQI
20th Jul 20253312 PMAQI
20th Jul 2025281 PMAQI
20th Jul 2025252 PMAQI
20th Jul 2025223 PMAQI
20th Jul 2025214 PMAQI
20th Jul 2025205 PMAQI
20th Jul 2025206 PMAQI
20th Jul 2025237 PMAQI
20th Jul 2025208 PMAQI
20th Jul 2025209 PMAQI
20th Jul 20252310 PMAQI
20th Jul 20252711 PMAQI
21st Jul 20252612 AMAQI
21st Jul 2025211 AMAQI
21st Jul 2025242 AMAQI
21st Jul 2025213 AMAQI
21st Jul 2025264 AMAQI
21st Jul 2025185 AMAQI
22°C13/30°C
21st Jul 2025226 AMAQI
21st Jul 2025227 AMAQI
21st Jul 2025288 AMAQI
21st Jul 2025229 AMAQI
21st Jul 20252010 AMAQI
21st Jul 20252111 AMAQI
21st Jul 20252412 PMAQI
21st Jul 2025281 PMAQI
21st Jul 2025252 PMAQI
21st Jul 2025243 PMAQI
21st Jul 2025244 PMAQI
21st Jul 2025275 PMAQI
21st Jul 2025286 PMAQI
21st Jul 2025307 PMAQI
21st Jul 2025268 PMAQI
21st Jul 2025199 PMAQI
21st Jul 20252410 PMAQI
21st Jul 20253711 PMAQI
22nd Jul 20253712 AMAQI
22nd Jul 2025341 AMAQI
22nd Jul 2025352 AMAQI
22nd Jul 2025383 AMAQI
22nd Jul 2025364 AMAQI
22nd Jul 2025295 AMAQI
20°C16/27°C
22nd Jul 2025276 AMAQI
22nd Jul 2025267 AMAQI
22nd Jul 2025328 AMAQI
22nd Jul 2025379 AMAQI
22nd Jul 20253910 AMAQI
22nd Jul 20253911 AMAQI
22nd Jul 20253812 PMAQI
22nd Jul 2025391 PMAQI
22nd Jul 2025322 PMAQI
22nd Jul 2025353 PMAQI
22nd Jul 2025404 PMAQI
22nd Jul 2025385 PMAQI
22nd Jul 2025396 PMAQI
22nd Jul 2025437 PMAQI
22nd Jul 2025368 PMAQI
22nd Jul 2025229 PMAQI
22nd Jul 20252010 PMAQI
22nd Jul 20252211 PMAQI
23rd Jul 20252312 AMAQI
23rd Jul 2025281 AMAQI
23rd Jul 2025462 AMAQI
23rd Jul 2025403 AMAQI
23rd Jul 2025364 AMAQI
23rd Jul 2025365 AMAQI
20°C13/25°C
23rd Jul 2025316 AMAQI
23rd Jul 2025207 AMAQI
23rd Jul 2025238 AMAQI
23rd Jul 2025289 AMAQI
23rd Jul 20253610 AMAQI
23rd Jul 20253811 AMAQI
23rd Jul 20253612 PMAQI
23rd Jul 2025421 PMAQI
23rd Jul 2025372 PMAQI
23rd Jul 2025423 PMAQI
23rd Jul 2025314 PMAQI
23rd Jul 2025205 PMAQI
23rd Jul 2025226 PMAQI
23rd Jul 2025287 PMAQI
23rd Jul 2025228 PMAQI
23rd Jul 2025259 PMAQI
23rd Jul 20252510 PMAQI
23rd Jul 20252411 PMAQI
24th Jul 20252612 AMAQI
24th Jul 2025261 AMAQI
24th Jul 2025272 AMAQI
24th Jul 2025283 AMAQI
24th Jul 2025284 AMAQI
24th Jul 2025305 AMAQI
23°C15/29°C
24th Jul 2025306 AMAQI
24th Jul 2025307 AMAQI
24th Jul 2025278 AMAQI
24th Jul 2025289 AMAQI
24th Jul 20253610 AMAQI
24th Jul 20253811 AMAQI
24th Jul 20254312 PMAQI
24th Jul 2025421 PMAQI
24th Jul 2025312 PMAQI
24th Jul 2025323 PMAQI
24th Jul 2025324 PMAQI
24th Jul 2025285 PMAQI
24th Jul 2025286 PMAQI
24th Jul 2025307 PMAQI
24th Jul 2025328 PMAQI
24th Jul 2025339 PMAQI
24th Jul 20253210 PMAQI
24th Jul 20253311 PMAQI
25th Jul 20253112 AMAQI
25th Jul 2025281 AMAQI
25th Jul 2025242 AMAQI
25th Jul 2025253 AMAQI
25th Jul 2025234 AMAQI
25th Jul 2025225 AMAQI
22°C16/30°C
25th Jul 2025236 AMAQI
25th Jul 2025267 AMAQI
25th Jul 2025248 AMAQI
25th Jul 2025269 AMAQI
25th Jul 20252710 AMAQI
25th Jul 20253011 AMAQI
25th Jul 20253212 PMAQI
25th Jul 2025311 PMAQI
25th Jul 2025312 PMAQI
25th Jul 2025293 PMAQI
25th Jul 2025284 PMAQI
25th Jul 2025245 PMAQI
25th Jul 2025246 PMAQI
25th Jul 2025257 PMAQI
25th Jul 2025268 PMAQI
25th Jul 2025239 PMAQI
25th Jul 20251710 PMAQI
25th Jul 20251811 PMAQI
26th Jul 20252012 AMAQI
26th Jul 2025241 AMAQI
26th Jul 2025272 AMAQI
26th Jul 2025273 AMAQI
26th Jul 2025244 AMAQI
26th Jul 2025255 AMAQI
22°C15/28°C
26th Jul 2025246 AMAQI
26th Jul 2025247 AMAQI
26th Jul 2025238 AMAQI
26th Jul 2025309 AMAQI
26th Jul 20254910 AMAQI
26th Jul 20254111 AMAQI
26th Jul 20252612 PMAQI
26th Jul 2025281 PMAQI
26th Jul 2025282 PMAQI
26th Jul 2025303 PMAQI
26th Jul 2025304 PMAQI
26th Jul 2025285 PMAQI
26th Jul 2025236 PMAQI
26th Jul 2025247 PMAQI
26th Jul 2025258 PMAQI
26th Jul 2025209 PMAQI
26th Jul 20253110 PMAQI
26th Jul 20253411 PMAQI
27th Jul 20253912 AMAQI
27th Jul 2025291 AMAQI
27th Jul 2025222 AMAQI
27th Jul 2025193 AMAQI
27th Jul 2025194 AMAQI
27th Jul 2025225 AMAQI
21°C14/27°C
27th Jul 2025276 AMAQI
27th Jul 2025227 AMAQI
27th Jul 2025208 AMAQI
27th Jul 2025189 AMAQI
27th Jul 20252410 AMAQI
27th Jul 20251811 AMAQI
27th Jul 20251712 PMAQI
27th Jul 2025171 PMAQI
27th Jul 2025192 PMAQI
27th Jul 2025203 PMAQI
27th Jul 2025204 PMAQI
27th Jul 2025225 PMAQI
27th Jul 2025206 PMAQI
27th Jul 2025207 PMAQI
27th Jul 2025188 PMAQI
27th Jul 2025219 PMAQI
27th Jul 20252110 PMAQI
27th Jul 20251911 PMAQI
28th Jul 20252012 AMAQI
28th Jul 2025241 AMAQI
28th Jul 2025282 AMAQI
28th Jul 2025303 AMAQI
28th Jul 2025284 AMAQI
28th Jul 2025245 AMAQI
21°C14/29°C
28th Jul 2025246 AMAQI
28th Jul 2025247 AMAQI
28th Jul 2025228 AMAQI
28th Jul 2025389 AMAQI
28th Jul 20252510 AMAQI
28th Jul 20252111 AMAQI
28th Jul 20252412 PMAQI
28th Jul 2025351 PMAQI
28th Jul 2025312 PMAQI
28th Jul 2025253 PMAQI
28th Jul 2025204 PMAQI
28th Jul 2025195 PMAQI
28th Jul 2025206 PMAQI
28th Jul 2025217 PMAQI
28th Jul 2025208 PMAQI
28th Jul 2025199 PMAQI
28th Jul 20251910 PMAQI
28th Jul 20252011 PMAQI
29th Jul 20252112 AMAQI
29th Jul 2025381 AMAQI
29th Jul 2025272 AMAQI
29th Jul 2025283 AMAQI
29th Jul 2025264 AMAQI
29th Jul 2025285 AMAQI
21°C13/28°C
29th Jul 2025276 AMAQI
29th Jul 2025277 AMAQI
29th Jul 2025248 AMAQI
29th Jul 2025349 AMAQI
29th Jul 20253410 AMAQI
29th Jul 20253611 AMAQI
29th Jul 20253412 PMAQI
29th Jul 2025331 PMAQI
29th Jul 2025242 PMAQI
29th Jul 2025223 PMAQI
29th Jul 2025224 PMAQI
29th Jul 2025225 PMAQI
29th Jul 2025216 PMAQI
29th Jul 2025207 PMAQI
29th Jul 2025218 PMAQI
29th Jul 2025249 PMAQI
29th Jul 20251910 PMAQI
29th Jul 20252111 PMAQI
30th Jul 20252612 AMAQI
30th Jul 2025281 AMAQI
30th Jul 2025312 AMAQI
30th Jul 2025273 AMAQI
30th Jul 2025284 AMAQI
30th Jul 2025295 AMAQI
22°C10/30°C
30th Jul 2025286 AMAQI
30th Jul 2025267 AMAQI
30th Jul 2025268 AMAQI
30th Jul 2025279 AMAQI
30th Jul 20252910 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 2025239 PMAQI
30th Jul 20252010 PMAQI
30th Jul 20252111 PMAQI
31st Jul 20252212 AMAQI
31st Jul 2025211 AMAQI
31st Jul 2025232 AMAQI
31st Jul 2025253 AMAQI
31st Jul 2025264 AMAQI
31st Jul 2025285 AMAQI
20°C13/29°C
31st Jul 2025246 AMAQI
31st Jul 2025247 AMAQI
31st Jul 2025248 AMAQI
31st Jul 2025289 AMAQI
31st Jul 20252810 AMAQI
31st Jul 20253011 AMAQI
31st Jul 20252912 PMAQI
31st Jul 2025311 PMAQI
31st Jul 2025302 PMAQI
31st Jul 2025313 PMAQI
31st Jul 2025354 PMAQI
31st Jul 2025335 PMAQI
31st Jul 2025306 PMAQI
31st Jul 2025237 PMAQI
31st Jul 2025268 PMAQI
31st Jul 2025299 PMAQI
31st Jul 20252810 PMAQI
31st Jul 20253011 PMAQI
1st Aug 20253012 AMAQI
1st Aug 2025281 AMAQI
1st Aug 2025262 AMAQI
1st Aug 2025283 AMAQI
1st Aug 2025274 AMAQI
1st Aug 2025245 AMAQI
21°C14/29°C
1st Aug 2025266 AMAQI
1st Aug 2025277 AMAQI
1st Aug 2025298 AMAQI
1st Aug 2025309 AMAQI
1st Aug 20253210 AMAQI
1st Aug 20253611 AMAQI
1st Aug 20253612 PMAQI
1st Aug 2025351 PMAQI
1st Aug 2025342 PMAQI
1st Aug 2025303 PMAQI
1st Aug 2025264 PMAQI
1st Aug 2025255 PMAQI
1st Aug 2025276 PMAQI
1st Aug 2025307 PMAQI
1st Aug 2025278 PMAQI
1st Aug 2025249 PMAQI
1st Aug 20252710 PMAQI
1st Aug 20252811 PMAQI
2nd Aug 20253212 AMAQI
2nd Aug 2025281 AMAQI
2nd Aug 2025262 AMAQI
2nd Aug 2025253 AMAQI
2nd Aug 2025244 AMAQI
2nd Aug 2025275 AMAQI
18°C10/27°C
2nd Aug 2025256 AMAQI
2nd Aug 2025257 AMAQI
2nd Aug 2025268 AMAQI
2nd Aug 2025279 AMAQI
2nd Aug 20253010 AMAQI
2nd Aug 20252811 AMAQI
2nd Aug 20252812 PMAQI
2nd Aug 2025281 PMAQI
2nd Aug 2025312 PMAQI
2nd Aug 2025313 PMAQI
2nd Aug 2025264 PMAQI
2nd Aug 2025265 PMAQI
2nd Aug 2025276 PMAQI
2nd Aug 2025257 PMAQI
2nd Aug 2025268 PMAQI
2nd Aug 2025239 PMAQI
2nd Aug 20252610 PMAQI
2nd Aug 20252411 PMAQI
3rd Aug 20252812 AMAQI
3rd Aug 2025311 AMAQI
3rd Aug 2025302 AMAQI
3rd Aug 2025323 AMAQI
3rd Aug 2025304 AMAQI
3rd Aug 2025305 AMAQI
19°C8/28°C
3rd Aug 2025326 AMAQI
3rd Aug 2025297 AMAQI
3rd Aug 2025268 AMAQI
3rd Aug 2025249 AMAQI
3rd Aug 20252310 AMAQI
3rd Aug 20252411 AMAQI
3rd Aug 20252212 PMAQI
3rd Aug 2025211 PMAQI
3rd Aug 2025212 PMAQI
3rd Aug 2025233 PMAQI
3rd Aug 2025224 PMAQI
3rd Aug 2025265 PMAQI
3rd Aug 2025286 PMAQI
3rd Aug 2025287 PMAQI
3rd Aug 2025298 PMAQI
3rd Aug 2025289 PMAQI
3rd Aug 20253010 PMAQI
3rd Aug 20253811 PMAQI
4th Aug 20253312 AMAQI
4th Aug 2025271 AMAQI
4th Aug 2025252 AMAQI
4th Aug 2025233 AMAQI
4th Aug 2025244 AMAQI
4th Aug 2025235 AMAQI
18°C7/26°C
4th Aug 2025226 AMAQI
4th Aug 2025227 AMAQI
4th Aug 2025218 AMAQI
4th Aug 2025259 AMAQI
4th Aug 20252410 AMAQI
4th Aug 20252611 AMAQI
4th Aug 20253112 PMAQI
4th Aug 2025391 PMAQI
4th Aug 2025382 PMAQI
4th Aug 2025373 PMAQI
4th Aug 2025324 PMAQI
4th Aug 2025275 PMAQI
4th Aug 2025226 PMAQI
4th Aug 2025237 PMAQI
4th Aug 2025228 PMAQI
4th Aug 2025229 PMAQI
4th Aug 20252110 PMAQI
4th Aug 20252111 PMAQI
5th Aug 20252212 AMAQI
5th Aug 2025221 AMAQI
5th Aug 2025242 AMAQI
5th Aug 2025203 AMAQI
5th Aug 2025234 AMAQI
5th Aug 2025215 AMAQI
18°C10/25°C
5th Aug 2025226 AMAQI
5th Aug 2025227 AMAQI
5th Aug 2025228 AMAQI
5th Aug 2025229 AMAQI
5th Aug 20252610 AMAQI
5th Aug 20252711 AMAQI
5th Aug 20252712 PMAQI
5th Aug 2025261 PMAQI
5th Aug 2025252 PMAQI
5th Aug 2025253 PMAQI
5th Aug 2025274 PMAQI
5th Aug 2025275 PMAQI
5th Aug 2025266 PMAQI
5th Aug 2025237 PMAQI
5th Aug 2025238 PMAQI
5th Aug 2025269 PMAQI
5th Aug 20252510 PMAQI
5th Aug 20252411 PMAQI
6th Aug 20252612 AMAQI
6th Aug 2025291 AMAQI
6th Aug 2025282 AMAQI
6th Aug 2025253 AMAQI
6th Aug 2025264 AMAQI
6th Aug 2025265 AMAQI
19°C6/27°C
6th Aug 2025246 AMAQI
6th Aug 2025227 AMAQI
6th Aug 2025228 AMAQI
6th Aug 2025269 AMAQI
6th Aug 20252910 AMAQI
6th Aug 20253411 AMAQI
6th Aug 20253312 PMAQI
6th Aug 2025311 PMAQI
6th Aug 2025312 PMAQI
6th Aug 2025283 PMAQI
6th Aug 2025294 PMAQI
6th Aug 2025225 PMAQI
6th Aug 2025206 PMAQI
6th Aug 2025237 PMAQI
6th Aug 2025228 PMAQI
6th Aug 2025199 PMAQI
6th Aug 20251810 PMAQI
6th Aug 20252011 PMAQI
7th Aug 20252012 AMAQI
7th Aug 2025201 AMAQI
7th Aug 2025232 AMAQI
7th Aug 2025223 AMAQI
7th Aug 2025204 AMAQI
7th Aug 2025215 AMAQI
18°C6/27°C
7th Aug 2025206 AMAQI
7th Aug 2025207 AMAQI
7th Aug 2025198 AMAQI
7th Aug 2025199 AMAQI
7th Aug 20252210 AMAQI
7th Aug 20252311 AMAQI
7th Aug 20252212 PMAQI
7th Aug 2025211 PMAQI
7th Aug 2025202 PMAQI
7th Aug 2025203 PMAQI
7th Aug 2025274 PMAQI
7th Aug 2025215 PMAQI
7th Aug 2025206 PMAQI
7th Aug 2025207 PMAQI
7th Aug 2025208 PMAQI
7th Aug 2025229 PMAQI
7th Aug 20252110 PMAQI
7th Aug 20252011 PMAQI
8th Aug 20252012 AMAQI
8th Aug 2025201 AMAQI
8th Aug 2025192 AMAQI
8th Aug 2025203 AMAQI
8th Aug 2025194 AMAQI
8th Aug 2025195 AMAQI
19°C10/28°C
8th Aug 2025206 AMAQI
8th Aug 2025207 AMAQI
8th Aug 2025258 AMAQI
8th Aug 2025269 AMAQI
8th Aug 20252510 AMAQI
8th Aug 20252211 AMAQI
8th Aug 20252212 PMAQI
8th Aug 2025321 PMAQI
8th Aug 2025252 PMAQI
8th Aug 2025203 PMAQI
8th Aug 2025204 PMAQI
8th Aug 2025205 PMAQI
8th Aug 2025216 PMAQI
8th Aug 2025197 PMAQI
8th Aug 2025238 PMAQI
8th Aug 2025199 PMAQI
8th Aug 20251810 PMAQI
8th Aug 20251911 PMAQI
9th Aug 20252012 AMAQI
9th Aug 2025211 AMAQI
9th Aug 2025202 AMAQI
9th Aug 2025213 AMAQI
9th Aug 2025224 AMAQI
9th Aug 2025235 AMAQI
20°C10/30°C
9th Aug 2025226 AMAQI
9th Aug 2025207 AMAQI
9th Aug 2025208 AMAQI
9th Aug 2025229 AMAQI
9th Aug 20252210 AMAQI
9th Aug 20252211 AMAQI
9th Aug 20252212 PMAQI
9th Aug 2025251 PMAQI
9th Aug 2025212 PMAQI
9th Aug 2025223 PMAQI
9th Aug 2025214 PMAQI
9th Aug 2025225 PMAQI
9th Aug 2025236 PMAQI
9th Aug 2025227 PMAQI
9th Aug 2025228 PMAQI
9th Aug 2025249 PMAQI
9th Aug 20252410 PMAQI
9th Aug 20252411 PMAQI
10th Aug 20252612 AMAQI
10th Aug 2025301 AMAQI
10th Aug 2025302 AMAQI
10th Aug 2025283 AMAQI
10th Aug 2025284 AMAQI
10th Aug 2025305 AMAQI
22°C9/33°C
10th Aug 2025286 AMAQI
10th Aug 2025287 AMAQI
10th Aug 2025268 AMAQI
10th Aug 2025279 AMAQI
10th Aug 20252610 AMAQI
10th Aug 20252711 AMAQI
10th Aug 20253112 PMAQI
10th Aug 2025361 PMAQI
10th Aug 2025282 PMAQI
10th Aug 2025263 PMAQI
10th Aug 2025244 PMAQI
10th Aug 2025225 PMAQI
10th Aug 2025216 PMAQI
10th Aug 2025247 PMAQI
10th Aug 2025238 PMAQI
10th Aug 2025189 PMAQI
10th Aug 20251810 PMAQI
10th Aug 20252211 PMAQI
11th Aug 20252412 AMAQI
11th Aug 2025271 AMAQI
11th Aug 2025282 AMAQI
11th Aug 2025273 AMAQI
11th Aug 2025284 AMAQI
11th Aug 2025255 AMAQI
26°C14/36°C
11th Aug 2025256 AMAQI
11th Aug 2025287 AMAQI
11th Aug 2025288 AMAQI
11th Aug 2025349 AMAQI
11th Aug 20253710 AMAQI
11th Aug 20253811 AMAQI
11th Aug 20253712 PMAQI
11th Aug 2025341 PMAQI
11th Aug 2025352 PMAQI
11th Aug 2025343 PMAQI
11th Aug 2025324 PMAQI
11th Aug 2025255 PMAQI
11th Aug 2025256 PMAQI
11th Aug 2025287 PMAQI
11th Aug 2025268 PMAQI
11th Aug 2025229 PMAQI
11th Aug 20252010 PMAQI
11th Aug 20252311 PMAQI
12th Aug 20252712 AMAQI
12th Aug 2025281 AMAQI
12th Aug 2025302 AMAQI
12th Aug 2025303 AMAQI
12th Aug 2025374 AMAQI
12th Aug 2025405 AMAQI
26°C14/37°C
12th Aug 2025346 AMAQI
12th Aug 2025397 AMAQI
12th Aug 2025378 AMAQI
12th Aug 2025409 AMAQI
12th Aug 20254010 AMAQI
12th Aug 20254511 AMAQI
12th Aug 20254612 PMAQI
12th Aug 2025481 PMAQI
12th Aug 2025482 PMAQI
12th Aug 2025443 PMAQI
12th Aug 2025424 PMAQI
12th Aug 2025445 PMAQI
12th Aug 2025426 PMAQI
12th Aug 2025367 PMAQI
12th Aug 2025338 PMAQI
12th Aug 2025289 PMAQI
12th Aug 20252810 PMAQI
12th Aug 20252611 PMAQI
13th Aug 20252612 AMAQI
13th Aug 2025271 AMAQI
13th Aug 2025332 AMAQI
13th Aug 2025303 AMAQI
13th Aug 2025304 AMAQI
13th Aug 2025325 AMAQI
27°C19/36°C
13th Aug 2025326 AMAQI
6 AM13th Aug 2025327 AMAQI
13th Aug 2025348 AMAQI
13th Aug 2025329 AMAQI
13th Aug 20253710 AMAQI
13th Aug 20254111 AMAQI
13th Aug 20254212 PMAQI
13th Aug 2025411 PMAQI
1 PM13th Aug 2025402 PMAQI
13th Aug 2025383 PMAQI
8 PM
1 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
10 AM - 1 PM
34AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
6 AM - 9 AM
29AQI
4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 AM to 1 PM (Avg. 34), while the lowest AQI was between 6 AM to 9 AM (Avg. 29).
Night time
Avg. Highest Time
12 AM - 5 AM
30AQI
6 hours / Day
180 hours / Month
Avg. Lowest Time
9 PM - 10 PM
27AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 5 AM (Avg. 30), while the lowest AQI was between 9 PM to 10 PM (Avg. 27).
2025 Days Vs Air Quality
Etna, Yreka, California, United States
2025
98%
220
2%
4
Total number of days with different AQI categories in last 225 days in 2025 (140 days remaining)
Good
220 DaysModerate
4 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 225 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
Etna, Yreka, 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
45AQI
45AQI
2nd January 2025
38AQI
38AQI
3rd January 2025
38AQI
38AQI
4th January 2025
33AQI
33AQI
5th January 2025
33AQI
33AQI
6th January 2025
30AQI
30AQI
7th January 2025
32AQI
32AQI
8th January 2025
37AQI
37AQI
9th January 2025
45AQI
45AQI
10th January 2025
41AQI
41AQI
11th January 2025
31AQI
31AQI
12th January 2025
35AQI
35AQI
13th January 2025
33AQI
33AQI
14th January 2025
49AQI
49AQI
15th January 2025
52AQI
52AQI
16th January 2025
47AQI
47AQI
17th January 2025
46AQI
46AQI
18th January 2025
46AQI
46AQI
19th January 2025
47AQI
47AQI
20th January 2025
36AQI
36AQI
21st January 2025
46AQI
46AQI
22nd January 2025
45AQI
45AQI
23rd January 2025
46AQI
46AQI
24th January 2025
47AQI
47AQI
25th January 2025
35AQI
35AQI
26th January 2025
36AQI
36AQI
27th January 2025
43AQI
43AQI
28th January 2025
49AQI
49AQI
29th January 2025
52AQI
52AQI
30th January 2025
52AQI
52AQI
31st January 2025
41AQI
41AQI
1st February 2025
34AQI
34AQI
2nd February 2025
31AQI
31AQI
3rd February 2025
34AQI
34AQI
4th February 2025
33AQI
33AQI
5th February 2025
31AQI
31AQI
6th February 2025
42AQI
42AQI
7th February 2025
30AQI
30AQI
8th February 2025
39AQI
39AQI
9th February 2025
40AQI
40AQI
10th February 2025
34AQI
34AQI
11th February 2025
38AQI
38AQI
12th February 2025
44AQI
44AQI
13th February 2025
33AQI
33AQI
14th February 2025
30AQI
30AQI
15th February 2025
26AQI
26AQI
16th February 2025
28AQI
28AQI
17th February 2025
26AQI
26AQI
18th February 2025
34AQI
34AQI
19th February 2025
31AQI
31AQI
20th February 2025
38AQI
38AQI
21st February 2025
35AQI
35AQI
22nd February 2025
37AQI
37AQI
23rd February 2025
27AQI
27AQI
24th February 2025
27AQI
27AQI
25th February 2025
28AQI
28AQI
26th February 2025
38AQI
38AQI
27th February 2025
38AQI
38AQI
28th February 2025
40AQI
40AQI
1st March 2025
36AQI
36AQI
2nd March 2025
27AQI
27AQI
3rd March 2025
34AQI
34AQI
4th March 2025
35AQI
35AQI
5th March 2025
29AQI
29AQI
6th March 2025
27AQI
27AQI
7th March 2025
29AQI
29AQI
8th March 2025
32AQI
32AQI
9th March 2025
27AQI
27AQI
10th March 2025
26AQI
26AQI
11th March 2025
30AQI
30AQI
12th March 2025
23AQI
23AQI
13th March 2025
20AQI
20AQI
14th March 2025
19AQI
19AQI
15th March 2025
19AQI
19AQI
16th March 2025
18AQI
18AQI
17th March 2025
19AQI
19AQI
18th March 2025
22AQI
22AQI
19th March 2025
22AQI
22AQI
20th March 2025
18AQI
18AQI
21st March 2025
23AQI
23AQI
22nd March 2025
19AQI
19AQI
23rd March 2025
22AQI
22AQI
24th March 2025
22AQI
22AQI
25th March 2025
25AQI
25AQI
26th March 2025
30AQI
30AQI
27th March 2025
24AQI
24AQI
28th March 2025
26AQI
26AQI
29th March 2025
29AQI
29AQI
30th March 2025
29AQI
29AQI
31st March 2025
23AQI
23AQI
1st April 2025
28AQI
28AQI
2nd April 2025
25AQI
25AQI
3rd April 2025
26AQI
26AQI
4th April 2025
27AQI
27AQI
5th April 2025
27AQI
27AQI
6th April 2025
26AQI
26AQI
7th April 2025
21AQI
21AQI
8th April 2025
21AQI
21AQI
9th April 2025
22AQI
22AQI
10th April 2025
26AQI
26AQI
11th April 2025
23AQI
23AQI
12th April 2025
21AQI
21AQI
13th April 2025
28AQI
28AQI
14th April 2025
31AQI
31AQI
15th April 2025
33AQI
33AQI
16th April 2025
32AQI
32AQI
17th April 2025
28AQI
28AQI
18th April 2025
26AQI
26AQI
19th April 2025
24AQI
24AQI
20th April 2025
24AQI
24AQI
21st April 2025
19AQI
19AQI
22nd April 2025
23AQI
23AQI
23rd April 2025
25AQI
25AQI
24th April 2025
31AQI
31AQI
25th April 2025
30AQI
30AQI
26th April 2025
22AQI
22AQI
27th April 2025
22AQI
22AQI
28th April 2025
24AQI
24AQI
29th April 2025
21AQI
21AQI
30th April 2025
24AQI
24AQI
1st May 2025
29AQI
29AQI
2nd May 2025
29AQI
29AQI
3rd May 2025
23AQI
23AQI
4th May 2025
21AQI
21AQI
5th May 2025
21AQI
21AQI
6th May 2025
19AQI
19AQI
7th May 2025
21AQI
21AQI
8th May 2025
23AQI
23AQI
9th May 2025
23AQI
23AQI
10th May 2025
21AQI
21AQI
11th May 2025
20AQI
20AQI
12th May 2025
25AQI
25AQI
13th May 2025
19AQI
19AQI
14th May 2025
20AQI
20AQI
15th May 2025
20AQI
20AQI
16th May 2025
21AQI
21AQI
17th May 2025
21AQI
21AQI
18th May 2025
23AQI
23AQI
19th May 2025
21AQI
21AQI
20th May 2025
17AQI
17AQI
21st May 2025
23AQI
23AQI
22nd May 2025
20AQI
20AQI
23rd May 2025
25AQI
25AQI
24th May 2025
27AQI
27AQI
25th May 2025
23AQI
23AQI
26th May 2025
21AQI
21AQI
27th May 2025
20AQI
20AQI
28th May 2025
30AQI
30AQI
29th May 2025
22AQI
22AQI
30th May 2025
25AQI
25AQI
31st May 2025
28AQI
28AQI
1st June 2025
30AQI
30AQI
2nd June 2025
25AQI
25AQI
3rd June 2025
21AQI
21AQI
4th June 2025
21AQI
21AQI
5th June 2025
24AQI
24AQI
6th June 2025
27AQI
27AQI
7th June 2025
27AQI
27AQI
8th June 2025
29AQI
29AQI
9th June 2025
30AQI
30AQI
10th June 2025
30AQI
30AQI
11th June 2025
31AQI
31AQI
12th June 2025
30AQI
30AQI
13th June 2025
31AQI
31AQI
14th June 2025
27AQI
27AQI
15th June 2025
26AQI
26AQI
16th June 2025
25AQI
25AQI
17th June 2025
23AQI
23AQI
18th June 2025
22AQI
22AQI
19th June 2025
34AQI
34AQI
20th June 2025
25AQI
25AQI
21st June 2025
26AQI
26AQI
22nd June 2025
25AQI
25AQI
23rd June 2025
20AQI
20AQI
24th June 2025
26AQI
26AQI
25th June 2025
30AQI
30AQI
26th June 2025
23AQI
23AQI
27th June 2025
21AQI
21AQI
28th June 2025
21AQI
21AQI
29th June 2025
22AQI
22AQI
30th June 2025
26AQI
26AQI
1st July 2025
30AQI
30AQI
2nd July 2025
33AQI
33AQI
3rd July 2025
25AQI
25AQI
4th July 2025
26AQI
26AQI
5th July 2025
27AQI
27AQI
6th July 2025
28AQI
28AQI
7th July 2025
28AQI
28AQI
8th July 2025
30AQI
30AQI
9th July 2025
36AQI
36AQI
10th July 2025
39AQI
39AQI
11th July 2025
32AQI
32AQI
12th July 2025
35AQI
35AQI
13th July 2025
38AQI
38AQI
14th July 2025
35AQI
35AQI
15th July 2025
38AQI
38AQI
16th July 2025
46AQI
46AQI
17th July 2025
52AQI
52AQI
18th July 2025
48AQI
48AQI
19th July 2025
39AQI
39AQI
20th July 2025
28AQI
28AQI
21st July 2025
25AQI
25AQI
22nd July 2025
34AQI
34AQI
23rd July 2025
31AQI
31AQI
24th July 2025
31AQI
31AQI
25th July 2025
25AQI
25AQI
26th July 2025
27AQI
27AQI
27th July 2025
22AQI
22AQI
28th July 2025
24AQI
24AQI
29th July 2025
26AQI
26AQI
30th July 2025
27AQI
27AQI
31st July 2025
27AQI
27AQI
1st August 2025
29AQI
29AQI
2nd August 2025
27AQI
27AQI
3rd August 2025
28AQI
28AQI
4th August 2025
26AQI
26AQI
5th August 2025
24AQI
24AQI
6th August 2025
25AQI
25AQI
7th August 2025
21AQI
21AQI
8th August 2025
21AQI
21AQI
9th August 2025
22AQI
22AQI
10th August 2025
26AQI
26AQI
11th August 2025
28AQI
28AQI
12th August 2025
37AQI
37AQI
41AQI
34AQI
25AQI
25AQI
23AQI
26AQI
32AQI
26AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202529AQI
28
3
28
31
30
31
30
30
1
12
220
4
Highest AQI recorded in
January41AQI
Lowest AQI recorded in
May23AQI
202430AQI
16
1
12
29
27
4
26
5
28
31
29
1
20
11
219
21
Highest AQI recorded in
December42AQI
Lowest AQI recorded in
May23AQI
202344AQI
5
3
5
1
23
6
1
17
3
31
74
11
3
6
1
Highest AQI recorded in
August123AQI
Lowest AQI recorded in
December22AQI
202238AQI
1
21
7
1
30
1
5
1
57
9
1
Highest AQI recorded in
August47AQI
Lowest AQI recorded in
October32AQI
202153AQI
15
16
19
8
2
1
19
8
4
6
9
8
6
13
7
6
4
31
30
7
142
49
18
10
Highest AQI recorded in
August102AQI
Lowest AQI recorded in
October23AQI
202087AQI
2
5
8
6
5
5
1
2
4
9
7
23
1
18
42
7
5
5
1
Highest AQI recorded in
September127AQI
Lowest AQI recorded in
August30AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2020(Avg.)
87AQILeast Polluted Year Recorded
2025(Avg.)
29AQIEtna's annual 2025 AQI (29) shows an average percentage change of -33.8% (improved AQI) compared to previous years: 2020 (87), 2021 (53), 2022 (38), 2023 (44), 2024 (30).
