Etna 2, 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 2, Yreka, California, United States
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
31st Aug 2023
142AQILowest AQI recorded on
24th Aug 2024
19AQISame Day Analysis (11th August ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 2nd highest AQI at 31 of Good air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 11th Aug - 12th Aug 2025
Etna 2, Yreka, California, United States
AQI
Day
Night
.
6 AM11th Aug 2025
8 PM
5 AM12th Aug 2025
Day time
Avg. Highest Time
11AM11th Aug
40AQI
Avg. Lowest Time
6PM11th Aug
24AQI
Night time
Avg. Highest Time
5AM12th Aug
39AQI
Avg. Lowest Time
11PM11th Aug
25AQI
In the last 24 hours,
Etna 2's AQI reached its highest point of 40 at 11 AM during the Day, while the lowest point, 24, was recorded at 6 PM during the Day between 11th Aug and 12th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Etna 2, Yreka, California, United States
JulAug
13th - 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 - 11th11th - 12th12th
Day
Night
13th Jul 2025336 AMAQI
13th Jul 2025347 AMAQI
13th Jul 2025348 AMAQI
13th Jul 2025359 AMAQI
13th Jul 20253810 AMAQI
13th Jul 20253811 AMAQI
13th Jul 20253812 PMAQI
13th Jul 2025411 PMAQI
13th Jul 2025382 PMAQI
13th Jul 2025373 PMAQI
13th Jul 2025364 PMAQI
13th Jul 2025325 PMAQI
13th Jul 2025346 PMAQI
13th Jul 2025357 PMAQI
13th Jul 2025348 PMAQI
13th Jul 2025349 PMAQI
13th Jul 20253610 PMAQI
13th Jul 20253511 PMAQI
14th Jul 20253412 AMAQI
14th Jul 2025321 AMAQI
14th Jul 2025322 AMAQI
14th Jul 2025373 AMAQI
14th Jul 2025364 AMAQI
14th Jul 2025375 AMAQI
28°C18/38°C
14th Jul 2025396 AMAQI
14th Jul 2025327 AMAQI
14th Jul 2025328 AMAQI
14th Jul 2025409 AMAQI
14th Jul 20254010 AMAQI
14th Jul 20254511 AMAQI
14th Jul 20254312 PMAQI
14th Jul 2025381 PMAQI
14th Jul 2025342 PMAQI
14th Jul 2025323 PMAQI
14th Jul 2025314 PMAQI
14th Jul 2025345 PMAQI
14th Jul 2025336 PMAQI
14th Jul 2025347 PMAQI
14th Jul 2025368 PMAQI
14th Jul 2025339 PMAQI
14th Jul 20254010 PMAQI
14th Jul 20254011 PMAQI
15th Jul 20254012 AMAQI
15th Jul 2025391 AMAQI
15th Jul 2025422 AMAQI
15th Jul 2025453 AMAQI
15th Jul 2025404 AMAQI
15th Jul 2025385 AMAQI
28°C18/37°C
15th Jul 2025426 AMAQI
15th Jul 2025407 AMAQI
15th Jul 2025408 AMAQI
15th Jul 2025429 AMAQI
15th Jul 20254810 AMAQI
15th Jul 20254611 AMAQI
15th Jul 20254712 PMAQI
15th Jul 2025441 PMAQI
15th Jul 2025392 PMAQI
15th Jul 2025343 PMAQI
15th Jul 2025414 PMAQI
15th Jul 2025475 PMAQI
15th Jul 2025476 PMAQI
15th Jul 2025487 PMAQI
15th Jul 2025438 PMAQI
15th Jul 2025489 PMAQI
15th Jul 20254610 PMAQI
15th Jul 20254611 PMAQI
16th Jul 20254812 AMAQI
16th Jul 2025461 AMAQI
16th Jul 2025432 AMAQI
16th Jul 2025473 AMAQI
16th Jul 2025494 AMAQI
16th Jul 2025435 AMAQI
25°C16/34°C
16th Jul 2025446 AMAQI
16th Jul 2025477 AMAQI
16th Jul 2025498 AMAQI
16th Jul 2025409 AMAQI
16th Jul 20254310 AMAQI
16th Jul 20254911 AMAQI
16th Jul 20255112 PMAQI
16th Jul 2025481 PMAQI
16th Jul 2025522 PMAQI
16th Jul 2025483 PMAQI
16th Jul 2025394 PMAQI
16th Jul 2025405 PMAQI
16th Jul 2025446 PMAQI
16th Jul 2025517 PMAQI
16th Jul 2025508 PMAQI
16th Jul 2025499 PMAQI
16th Jul 20255010 PMAQI
16th Jul 20254811 PMAQI
17th Jul 20254912 AMAQI
17th Jul 2025481 AMAQI
17th Jul 2025522 AMAQI
17th Jul 2025523 AMAQI
17th Jul 2025514 AMAQI
17th Jul 2025525 AMAQI
24°C16/34°C
17th Jul 2025526 AMAQI
17th Jul 2025527 AMAQI
17th Jul 2025518 AMAQI
17th Jul 2025509 AMAQI
17th Jul 20255010 AMAQI
17th Jul 20255211 AMAQI
17th Jul 20254912 PMAQI
17th Jul 2025421 PMAQI
17th Jul 2025442 PMAQI
17th Jul 2025463 PMAQI
17th Jul 2025444 PMAQI
17th Jul 2025405 PMAQI
17th Jul 2025436 PMAQI
17th Jul 2025507 PMAQI
17th Jul 2025508 PMAQI
17th Jul 2025509 PMAQI
17th Jul 20254510 PMAQI
17th Jul 20255111 PMAQI
18th Jul 20254912 AMAQI
18th Jul 2025481 AMAQI
18th Jul 2025452 AMAQI
18th Jul 2025473 AMAQI
18th Jul 2025444 AMAQI
18th Jul 2025435 AMAQI
23°C14/32°C
18th Jul 2025456 AMAQI
18th Jul 2025467 AMAQI
18th Jul 2025418 AMAQI
18th Jul 2025439 AMAQI
18th Jul 20254210 AMAQI
18th Jul 20254211 AMAQI
18th Jul 20254612 PMAQI
18th Jul 2025421 PMAQI
18th Jul 2025442 PMAQI
18th Jul 2025433 PMAQI
18th Jul 2025444 PMAQI
18th Jul 2025455 PMAQI
18th Jul 2025526 PMAQI
18th Jul 2025437 PMAQI
18th Jul 2025428 PMAQI
18th Jul 2025509 PMAQI
18th Jul 20254710 PMAQI
18th Jul 20254611 PMAQI
19th Jul 20254412 AMAQI
19th Jul 2025421 AMAQI
19th Jul 2025432 AMAQI
19th Jul 2025443 AMAQI
19th Jul 2025434 AMAQI
19th Jul 2025395 AMAQI
23°C14/32°C
19th Jul 2025386 AMAQI
19th Jul 2025397 AMAQI
19th Jul 2025408 AMAQI
19th Jul 2025449 AMAQI
19th Jul 20254810 AMAQI
19th Jul 20255211 AMAQI
19th Jul 20255112 PMAQI
19th Jul 2025471 PMAQI
19th Jul 2025432 PMAQI
19th Jul 2025403 PMAQI
19th Jul 2025384 PMAQI
19th Jul 2025385 PMAQI
19th Jul 2025386 PMAQI
19th Jul 2025397 PMAQI
19th Jul 2025408 PMAQI
19th Jul 2025249 PMAQI
19th Jul 20252610 PMAQI
19th Jul 20254211 PMAQI
20th Jul 20254412 AMAQI
20th Jul 2025421 AMAQI
20th Jul 2025412 AMAQI
20th Jul 2025423 AMAQI
20th Jul 2025314 AMAQI
20th Jul 2025315 AMAQI
22°C14/32°C
20th Jul 2025246 AMAQI
20th Jul 2025197 AMAQI
20th Jul 2025248 AMAQI
20th Jul 2025339 AMAQI
20th Jul 20253910 AMAQI
20th Jul 20254011 AMAQI
20th Jul 20253912 PMAQI
20th Jul 2025301 PMAQI
20th Jul 2025262 PMAQI
20th Jul 2025233 PMAQI
20th Jul 2025224 PMAQI
20th Jul 2025195 PMAQI
20th Jul 2025206 PMAQI
20th Jul 2025247 PMAQI
20th Jul 2025208 PMAQI
20th Jul 2025209 PMAQI
20th Jul 20252410 PMAQI
20th Jul 20252711 PMAQI
21st Jul 20253012 AMAQI
21st Jul 2025251 AMAQI
21st Jul 2025292 AMAQI
21st Jul 2025293 AMAQI
21st Jul 2025364 AMAQI
21st Jul 2025325 AMAQI
21°C12/31°C
21st Jul 2025316 AMAQI
21st Jul 2025267 AMAQI
21st Jul 2025418 AMAQI
21st Jul 2025369 AMAQI
21st Jul 20253110 AMAQI
21st Jul 20252911 AMAQI
21st Jul 20252612 PMAQI
21st Jul 2025301 PMAQI
21st Jul 2025242 PMAQI
21st Jul 2025253 PMAQI
21st Jul 2025284 PMAQI
21st Jul 2025345 PMAQI
21st Jul 2025386 PMAQI
21st Jul 2025367 PMAQI
21st Jul 2025328 PMAQI
21st Jul 2025209 PMAQI
21st Jul 20252610 PMAQI
21st Jul 20254211 PMAQI
22nd Jul 20254112 AMAQI
22nd Jul 2025371 AMAQI
22nd Jul 2025382 AMAQI
22nd Jul 2025393 AMAQI
22nd Jul 2025374 AMAQI
22nd Jul 2025315 AMAQI
17°C9/24°C
22nd Jul 2025286 AMAQI
22nd Jul 2025277 AMAQI
22nd Jul 2025368 AMAQI
22nd Jul 2025409 AMAQI
22nd Jul 20254210 AMAQI
22nd Jul 20253711 AMAQI
22nd Jul 20254012 PMAQI
22nd Jul 2025381 PMAQI
22nd Jul 2025322 PMAQI
22nd Jul 2025363 PMAQI
22nd Jul 2025424 PMAQI
22nd Jul 2025405 PMAQI
22nd Jul 2025406 PMAQI
22nd Jul 2025427 PMAQI
22nd Jul 2025378 PMAQI
22nd Jul 2025239 PMAQI
22nd Jul 20252210 PMAQI
22nd Jul 20252411 PMAQI
23rd Jul 20252412 AMAQI
23rd Jul 2025281 AMAQI
23rd Jul 2025472 AMAQI
23rd Jul 2025423 AMAQI
23rd Jul 2025374 AMAQI
23rd Jul 2025385 AMAQI
19°C10/27°C
23rd Jul 2025356 AMAQI
23rd Jul 2025227 AMAQI
23rd Jul 2025248 AMAQI
23rd Jul 2025299 AMAQI
23rd Jul 20253810 AMAQI
23rd Jul 20254011 AMAQI
23rd Jul 20253812 PMAQI
23rd Jul 2025501 PMAQI
23rd Jul 2025392 PMAQI
23rd Jul 2025423 PMAQI
23rd Jul 2025314 PMAQI
23rd Jul 2025205 PMAQI
23rd Jul 2025226 PMAQI
23rd Jul 2025277 PMAQI
23rd Jul 2025238 PMAQI
23rd Jul 2025259 PMAQI
23rd Jul 20252510 PMAQI
23rd Jul 20252411 PMAQI
24th Jul 20252512 AMAQI
24th Jul 2025251 AMAQI
24th Jul 2025262 AMAQI
24th Jul 2025263 AMAQI
24th Jul 2025284 AMAQI
24th Jul 2025295 AMAQI
21°C11/30°C
24th Jul 2025296 AMAQI
24th Jul 2025287 AMAQI
24th Jul 2025268 AMAQI
24th Jul 2025289 AMAQI
24th Jul 20253810 AMAQI
24th Jul 20253911 AMAQI
24th Jul 20254812 PMAQI
24th Jul 2025441 PMAQI
24th Jul 2025302 PMAQI
24th Jul 2025313 PMAQI
24th Jul 2025314 PMAQI
24th Jul 2025285 PMAQI
24th Jul 2025266 PMAQI
24th Jul 2025287 PMAQI
24th Jul 2025298 PMAQI
24th Jul 2025319 PMAQI
24th Jul 20252910 PMAQI
24th Jul 20252911 PMAQI
25th Jul 20252612 AMAQI
25th Jul 2025261 AMAQI
25th Jul 2025242 AMAQI
25th Jul 2025253 AMAQI
25th Jul 2025234 AMAQI
25th Jul 2025205 AMAQI
21°C12/30°C
25th Jul 2025206 AMAQI
25th Jul 2025227 AMAQI
25th Jul 2025248 AMAQI
25th Jul 2025259 AMAQI
25th Jul 20252510 AMAQI
25th Jul 20252711 AMAQI
25th Jul 20252812 PMAQI
25th Jul 2025281 PMAQI
25th Jul 2025272 PMAQI
25th Jul 2025263 PMAQI
25th Jul 2025304 PMAQI
25th Jul 2025245 PMAQI
25th Jul 2025236 PMAQI
25th Jul 2025227 PMAQI
25th Jul 2025248 PMAQI
25th Jul 2025249 PMAQI
25th Jul 20251810 PMAQI
25th Jul 20251811 PMAQI
26th Jul 20252012 AMAQI
26th Jul 2025241 AMAQI
26th Jul 2025262 AMAQI
26th Jul 2025263 AMAQI
26th Jul 2025224 AMAQI
26th Jul 2025225 AMAQI
21°C12/30°C
26th Jul 2025226 AMAQI
26th Jul 2025187 AMAQI
26th Jul 2025218 AMAQI
26th Jul 2025289 AMAQI
26th Jul 20254810 AMAQI
26th Jul 20254111 AMAQI
26th Jul 20252312 PMAQI
26th Jul 2025261 PMAQI
26th Jul 2025262 PMAQI
26th Jul 2025283 PMAQI
26th Jul 2025274 PMAQI
26th Jul 2025265 PMAQI
26th Jul 2025206 PMAQI
26th Jul 2025227 PMAQI
26th Jul 2025228 PMAQI
26th Jul 2025189 PMAQI
26th Jul 20252710 PMAQI
26th Jul 20252311 PMAQI
27th Jul 20253112 AMAQI
27th Jul 2025211 AMAQI
27th Jul 2025182 AMAQI
27th Jul 2025203 AMAQI
27th Jul 2025184 AMAQI
27th Jul 2025235 AMAQI
22°C16/28°C
27th Jul 2025296 AMAQI
27th Jul 2025227 AMAQI
27th Jul 2025198 AMAQI
27th Jul 2025189 AMAQI
27th Jul 20252210 AMAQI
27th Jul 20251611 AMAQI
27th Jul 20251612 PMAQI
27th Jul 2025161 PMAQI
27th Jul 2025162 PMAQI
27th Jul 2025183 PMAQI
27th Jul 2025184 PMAQI
27th Jul 2025205 PMAQI
27th Jul 2025196 PMAQI
27th Jul 2025177 PMAQI
27th Jul 2025188 PMAQI
27th Jul 2025209 PMAQI
27th Jul 20251810 PMAQI
27th Jul 20251811 PMAQI
28th Jul 20251912 AMAQI
28th Jul 2025231 AMAQI
28th Jul 2025272 AMAQI
28th Jul 2025283 AMAQI
28th Jul 2025264 AMAQI
28th Jul 2025235 AMAQI
20°C10/29°C
28th Jul 2025236 AMAQI
28th Jul 2025237 AMAQI
28th Jul 2025238 AMAQI
28th Jul 2025409 AMAQI
28th Jul 20252410 AMAQI
28th Jul 20251911 AMAQI
28th Jul 20252312 PMAQI
28th Jul 2025361 PMAQI
28th Jul 2025332 PMAQI
28th Jul 2025273 PMAQI
28th Jul 2025204 PMAQI
28th Jul 2025195 PMAQI
28th Jul 2025206 PMAQI
28th Jul 2025217 PMAQI
28th Jul 2025208 PMAQI
28th Jul 2025189 PMAQI
28th Jul 20251910 PMAQI
28th Jul 20252011 PMAQI
29th Jul 20252212 AMAQI
29th Jul 2025371 AMAQI
29th Jul 2025262 AMAQI
29th Jul 2025283 AMAQI
29th Jul 2025274 AMAQI
29th Jul 2025285 AMAQI
21°C11/30°C
29th Jul 2025296 AMAQI
29th Jul 2025277 AMAQI
29th Jul 2025238 AMAQI
29th Jul 2025329 AMAQI
29th Jul 20253610 AMAQI
29th Jul 20254211 AMAQI
29th Jul 20253812 PMAQI
29th Jul 2025341 PMAQI
29th Jul 2025242 PMAQI
29th Jul 2025223 PMAQI
29th Jul 2025224 PMAQI
29th Jul 2025225 PMAQI
29th Jul 2025206 PMAQI
29th Jul 2025207 PMAQI
29th Jul 2025248 PMAQI
29th Jul 2025209 PMAQI
29th Jul 20251910 PMAQI
29th Jul 20252211 PMAQI
30th Jul 20252812 AMAQI
30th Jul 2025301 AMAQI
30th Jul 2025332 AMAQI
30th Jul 2025283 AMAQI
30th Jul 2025284 AMAQI
30th Jul 2025315 AMAQI
22°C12/31°C
30th Jul 2025286 AMAQI
30th Jul 2025287 AMAQI
30th Jul 2025288 AMAQI
30th Jul 2025299 AMAQI
30th Jul 20253110 AMAQI
30th Jul 20253011 AMAQI
30th Jul 20253012 PMAQI
30th Jul 2025291 PMAQI
30th Jul 2025282 PMAQI
30th Jul 2025283 PMAQI
30th Jul 2025284 PMAQI
30th Jul 2025285 PMAQI
30th Jul 2025286 PMAQI
30th Jul 2025287 PMAQI
30th Jul 2025288 PMAQI
30th Jul 2025259 PMAQI
30th Jul 20252210 PMAQI
30th Jul 20252211 PMAQI
31st Jul 20252412 AMAQI
31st Jul 2025231 AMAQI
31st Jul 2025242 AMAQI
31st Jul 2025263 AMAQI
31st Jul 2025294 AMAQI
31st Jul 2025295 AMAQI
22°C14/31°C
31st Jul 2025356 AMAQI
31st Jul 2025547 AMAQI
31st Jul 2025348 AMAQI
31st Jul 2025679 AMAQI
31st Jul 20253410 AMAQI
31st Jul 20253611 AMAQI
31st Jul 20253212 PMAQI
31st Jul 2025331 PMAQI
31st Jul 2025322 PMAQI
31st Jul 2025303 PMAQI
31st Jul 2025304 PMAQI
31st Jul 2025305 PMAQI
31st Jul 2025286 PMAQI
31st Jul 2025267 PMAQI
31st Jul 2025278 PMAQI
31st Jul 2025309 PMAQI
31st Jul 20252810 PMAQI
31st Jul 20253011 PMAQI
1st Aug 20253012 AMAQI
1st Aug 2025301 AMAQI
1st Aug 2025292 AMAQI
1st Aug 2025273 AMAQI
1st Aug 2025274 AMAQI
1st Aug 2025255 AMAQI
23°C16/31°C
1st Aug 2025246 AMAQI
1st Aug 2025267 AMAQI
1st Aug 2025298 AMAQI
1st Aug 2025309 AMAQI
1st Aug 20253210 AMAQI
1st Aug 20253811 AMAQI
1st Aug 20253512 PMAQI
1st Aug 2025341 PMAQI
1st Aug 2025342 PMAQI
1st Aug 2025343 PMAQI
1st Aug 2025274 PMAQI
1st Aug 2025265 PMAQI
1st Aug 2025266 PMAQI
1st Aug 2025287 PMAQI
1st Aug 2025268 PMAQI
1st Aug 2025249 PMAQI
1st Aug 20252610 PMAQI
1st Aug 20252911 PMAQI
2nd Aug 20253012 AMAQI
2nd Aug 2025281 AMAQI
2nd Aug 2025272 AMAQI
2nd Aug 2025293 AMAQI
2nd Aug 2025304 AMAQI
2nd Aug 2025295 AMAQI
21°C12/31°C
2nd Aug 2025286 AMAQI
2nd Aug 2025277 AMAQI
2nd Aug 2025278 AMAQI
2nd Aug 2025289 AMAQI
2nd Aug 20253010 AMAQI
2nd Aug 20252811 AMAQI
2nd Aug 20252812 PMAQI
2nd Aug 2025301 PMAQI
2nd Aug 2025302 PMAQI
2nd Aug 2025293 PMAQI
2nd Aug 2025284 PMAQI
2nd Aug 2025275 PMAQI
2nd Aug 2025306 PMAQI
2nd Aug 2025297 PMAQI
2nd Aug 2025298 PMAQI
2nd Aug 2025299 PMAQI
2nd Aug 20252710 PMAQI
2nd Aug 20252611 PMAQI
3rd Aug 20252812 AMAQI
3rd Aug 2025321 AMAQI
3rd Aug 2025322 AMAQI
3rd Aug 2025343 AMAQI
3rd Aug 2025304 AMAQI
3rd Aug 2025315 AMAQI
20°C11/30°C
3rd Aug 2025336 AMAQI
3rd Aug 2025307 AMAQI
3rd Aug 2025288 AMAQI
3rd Aug 2025269 AMAQI
3rd Aug 20252510 AMAQI
3rd Aug 20252611 AMAQI
3rd Aug 20252212 PMAQI
3rd Aug 2025221 PMAQI
3rd Aug 2025212 PMAQI
3rd Aug 2025223 PMAQI
3rd Aug 2025234 PMAQI
3rd Aug 2025265 PMAQI
3rd Aug 2025326 PMAQI
3rd Aug 2025297 PMAQI
3rd Aug 2025318 PMAQI
3rd Aug 2025269 PMAQI
3rd Aug 20253310 PMAQI
3rd Aug 20252911 PMAQI
4th Aug 20252812 AMAQI
4th Aug 2025251 AMAQI
4th Aug 2025242 AMAQI
4th Aug 2025243 AMAQI
4th Aug 2025244 AMAQI
4th Aug 2025245 AMAQI
18°C10/26°C
4th Aug 2025246 AMAQI
4th Aug 2025247 AMAQI
4th Aug 2025248 AMAQI
4th Aug 2025239 AMAQI
4th Aug 20252510 AMAQI
4th Aug 20253011 AMAQI
4th Aug 20253812 PMAQI
4th Aug 2025501 PMAQI
4th Aug 2025572 PMAQI
4th Aug 2025503 PMAQI
4th Aug 2025444 PMAQI
4th Aug 2025355 PMAQI
4th Aug 2025326 PMAQI
4th Aug 2025247 PMAQI
4th Aug 2025228 PMAQI
4th Aug 2025229 PMAQI
4th Aug 20252210 PMAQI
4th Aug 20252311 PMAQI
5th Aug 20252512 AMAQI
5th Aug 2025241 AMAQI
5th Aug 2025252 AMAQI
5th Aug 2025213 AMAQI
5th Aug 2025234 AMAQI
5th Aug 2025265 AMAQI
17°C6/25°C
5th Aug 2025226 AMAQI
5th Aug 2025247 AMAQI
5th Aug 2025238 AMAQI
5th Aug 2025259 AMAQI
5th Aug 20252810 AMAQI
5th Aug 20252911 AMAQI
5th Aug 20252912 PMAQI
5th Aug 2025271 PMAQI
5th Aug 2025282 PMAQI
5th Aug 2025283 PMAQI
5th Aug 2025274 PMAQI
5th Aug 2025285 PMAQI
5th Aug 2025286 PMAQI
5th Aug 2025247 PMAQI
5th Aug 2025268 PMAQI
5th Aug 2025259 PMAQI
5th Aug 20252510 PMAQI
5th Aug 20252611 PMAQI
6th Aug 20252512 AMAQI
6th Aug 2025251 AMAQI
6th Aug 2025252 AMAQI
6th Aug 2025243 AMAQI
6th Aug 2025254 AMAQI
6th Aug 2025265 AMAQI
18°C9/28°C
6th Aug 2025266 AMAQI
6th Aug 2025297 AMAQI
6th Aug 2025288 AMAQI
6th Aug 2025329 AMAQI
6th Aug 20253410 AMAQI
6th Aug 20253711 AMAQI
6th Aug 20253412 PMAQI
6th Aug 2025311 PMAQI
6th Aug 2025302 PMAQI
6th Aug 2025293 PMAQI
6th Aug 2025274 PMAQI
6th Aug 2025215 PMAQI
6th Aug 2025206 PMAQI
6th Aug 2025247 PMAQI
6th Aug 2025228 PMAQI
6th Aug 2025199 PMAQI
6th Aug 20251810 PMAQI
6th Aug 20251911 PMAQI
7th Aug 20252012 AMAQI
7th Aug 2025211 AMAQI
7th Aug 2025232 AMAQI
7th Aug 2025223 AMAQI
7th Aug 2025204 AMAQI
7th Aug 2025205 AMAQI
18°C10/26°C
7th Aug 2025206 AMAQI
7th Aug 2025207 AMAQI
7th Aug 2025208 AMAQI
7th Aug 2025209 AMAQI
7th Aug 20252310 AMAQI
7th Aug 20252211 AMAQI
7th Aug 20252612 PMAQI
7th Aug 2025221 PMAQI
7th Aug 2025212 PMAQI
7th Aug 2025213 PMAQI
7th Aug 2025214 PMAQI
7th Aug 2025225 PMAQI
7th Aug 2025216 PMAQI
7th Aug 2025217 PMAQI
7th Aug 2025208 PMAQI
7th Aug 2025229 PMAQI
7th Aug 20252010 PMAQI
7th Aug 20252011 PMAQI
8th Aug 20252212 AMAQI
8th Aug 2025221 AMAQI
8th Aug 2025202 AMAQI
8th Aug 2025203 AMAQI
8th Aug 2025204 AMAQI
8th Aug 2025205 AMAQI
20°C10/30°C
8th Aug 2025216 AMAQI
8th Aug 2025217 AMAQI
8th Aug 2025278 AMAQI
8th Aug 2025299 AMAQI
8th Aug 20252810 AMAQI
8th Aug 20252611 AMAQI
8th Aug 20252312 PMAQI
8th Aug 2025231 PMAQI
8th Aug 2025232 PMAQI
8th Aug 2025213 PMAQI
8th Aug 2025204 PMAQI
8th Aug 2025205 PMAQI
8th Aug 2025236 PMAQI
8th Aug 2025207 PMAQI
8th Aug 2025198 PMAQI
8th Aug 2025199 PMAQI
8th Aug 20251910 PMAQI
8th Aug 20252011 PMAQI
9th Aug 20252412 AMAQI
9th Aug 2025251 AMAQI
9th Aug 2025222 AMAQI
9th Aug 2025233 AMAQI
9th Aug 2025244 AMAQI
9th Aug 2025255 AMAQI
23°C10/34°C
9th Aug 2025256 AMAQI
9th Aug 2025267 AMAQI
9th Aug 2025248 AMAQI
9th Aug 2025249 AMAQI
9th Aug 20253710 AMAQI
9th Aug 20252411 AMAQI
9th Aug 20252212 PMAQI
9th Aug 2025241 PMAQI
9th Aug 2025252 PMAQI
9th Aug 2025233 PMAQI
9th Aug 2025224 PMAQI
9th Aug 2025225 PMAQI
9th Aug 2025216 PMAQI
9th Aug 2025257 PMAQI
9th Aug 2025258 PMAQI
9th Aug 2025269 PMAQI
9th Aug 20252310 PMAQI
9th Aug 20252411 PMAQI
10th Aug 20252512 AMAQI
10th Aug 2025291 AMAQI
10th Aug 2025282 AMAQI
10th Aug 2025333 AMAQI
10th Aug 2025304 AMAQI
10th Aug 2025335 AMAQI
25°C14/36°C
10th Aug 2025326 AMAQI
10th Aug 2025327 AMAQI
10th Aug 2025298 AMAQI
10th Aug 2025349 AMAQI
10th Aug 20253010 AMAQI
10th Aug 20252711 AMAQI
10th Aug 20253012 PMAQI
10th Aug 2025261 PMAQI
10th Aug 2025242 PMAQI
10th Aug 2025243 PMAQI
10th Aug 2025314 PMAQI
10th Aug 2025245 PMAQI
10th Aug 2025266 PMAQI
10th Aug 2025267 PMAQI
10th Aug 2025288 PMAQI
10th Aug 2025249 PMAQI
10th Aug 20252510 PMAQI
10th Aug 20252711 PMAQI
11th Aug 20252612 AMAQI
11th Aug 2025301 AMAQI
11th Aug 2025312 AMAQI
11th Aug 2025293 AMAQI
11th Aug 2025324 AMAQI
11th Aug 2025295 AMAQI
26°C17/38°C
11th Aug 2025316 AMAQI
11th Aug 2025327 AMAQI
11th Aug 2025328 AMAQI
11th Aug 2025319 AMAQI
11th Aug 20253810 AMAQI
11th Aug 20254011 AMAQI
11th Aug 20254012 PMAQI
11th Aug 2025341 PMAQI
11th Aug 2025312 PMAQI
11th Aug 2025313 PMAQI
11th Aug 2025274 PMAQI
11th Aug 2025255 PMAQI
11th Aug 2025246 PMAQI
11th Aug 2025327 PMAQI
11th Aug 2025288 PMAQI
11th Aug 2025259 PMAQI
11th Aug 20252610 PMAQI
11th Aug 20252511 PMAQI
12th Aug 20252812 AMAQI
12th Aug 2025331 AMAQI
12th Aug 2025312 AMAQI
12th Aug 2025313 AMAQI
12th Aug 2025364 AMAQI
12th Aug 2025395 AMAQI
26°C14/37°C
12th Aug 2025346 AMAQI
6 AM1 PM
8 PM
1 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
10 AM - 1 PM
35AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
2 PM - 8 PM
30AQI
7 hours / Day
210 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 AM to 1 PM (Avg. 35), while the lowest AQI was between 2 PM to 8 PM (Avg. 30).
Night time
Avg. Highest Time
12 AM - 5 AM
31AQI
6 hours / Day
180 hours / Month
Avg. Lowest Time
9 PM - 11 PM
28AQI
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. 28).
2025 Days Vs Air Quality
Etna 2, Yreka, California, United States
2025
97%
217
3%
6
Total number of days with different AQI categories in last 224 days in 2025 (141 days remaining)
Good
217 DaysModerate
6 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 97%
Health Risk Level:
Very Low
In 2025, 97% of 224 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 2, 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
49AQI
49AQI
2nd January 2025
39AQI
39AQI
3rd January 2025
32AQI
32AQI
4th January 2025
23AQI
23AQI
5th January 2025
31AQI
31AQI
6th January 2025
27AQI
27AQI
7th January 2025
31AQI
31AQI
8th January 2025
43AQI
43AQI
9th January 2025
41AQI
41AQI
10th January 2025
38AQI
38AQI
11th January 2025
30AQI
30AQI
12th January 2025
32AQI
32AQI
13th January 2025
33AQI
33AQI
14th January 2025
43AQI
43AQI
15th January 2025
48AQI
48AQI
16th January 2025
44AQI
44AQI
17th January 2025
41AQI
41AQI
18th January 2025
43AQI
43AQI
19th January 2025
50AQI
50AQI
20th January 2025
42AQI
42AQI
21st January 2025
50AQI
50AQI
22nd January 2025
52AQI
52AQI
23rd January 2025
52AQI
52AQI
24th January 2025
50AQI
50AQI
25th January 2025
37AQI
37AQI
26th January 2025
40AQI
40AQI
27th January 2025
52AQI
52AQI
28th January 2025
56AQI
56AQI
29th January 2025
54AQI
54AQI
30th January 2025
54AQI
54AQI
31st January 2025
44AQI
44AQI
1st February 2025
33AQI
33AQI
2nd February 2025
33AQI
33AQI
3rd February 2025
36AQI
36AQI
4th February 2025
36AQI
36AQI
5th February 2025
34AQI
34AQI
6th February 2025
42AQI
42AQI
7th February 2025
33AQI
33AQI
8th February 2025
33AQI
33AQI
9th February 2025
35AQI
35AQI
10th February 2025
33AQI
33AQI
11th February 2025
37AQI
37AQI
12th February 2025
41AQI
41AQI
13th February 2025
30AQI
30AQI
14th February 2025
27AQI
27AQI
15th February 2025
26AQI
26AQI
16th February 2025
26AQI
26AQI
17th February 2025
26AQI
26AQI
18th February 2025
32AQI
32AQI
19th February 2025
28AQI
28AQI
20th February 2025
32AQI
32AQI
21st February 2025
33AQI
33AQI
22nd February 2025
35AQI
35AQI
23rd February 2025
25AQI
25AQI
24th February 2025
27AQI
27AQI
25th February 2025
30AQI
30AQI
26th February 2025
35AQI
35AQI
27th February 2025
39AQI
39AQI
28th February 2025
39AQI
39AQI
1st March 2025
37AQI
37AQI
2nd March 2025
26AQI
26AQI
3rd March 2025
27AQI
27AQI
4th March 2025
37AQI
37AQI
5th March 2025
29AQI
29AQI
6th March 2025
26AQI
26AQI
7th March 2025
28AQI
28AQI
8th March 2025
31AQI
31AQI
9th March 2025
27AQI
27AQI
10th March 2025
27AQI
27AQI
11th March 2025
30AQI
30AQI
12th March 2025
23AQI
23AQI
13th March 2025
21AQI
21AQI
14th March 2025
21AQI
21AQI
15th March 2025
19AQI
19AQI
16th March 2025
18AQI
18AQI
17th March 2025
19AQI
19AQI
18th March 2025
21AQI
21AQI
19th March 2025
23AQI
23AQI
20th March 2025
19AQI
19AQI
21st March 2025
22AQI
22AQI
22nd March 2025
19AQI
19AQI
23rd March 2025
24AQI
24AQI
24th March 2025
22AQI
22AQI
25th March 2025
26AQI
26AQI
26th March 2025
35AQI
35AQI
27th March 2025
24AQI
24AQI
28th March 2025
25AQI
25AQI
29th March 2025
27AQI
27AQI
30th March 2025
28AQI
28AQI
31st March 2025
22AQI
22AQI
1st April 2025
26AQI
26AQI
2nd April 2025
26AQI
26AQI
3rd April 2025
29AQI
29AQI
4th April 2025
29AQI
29AQI
5th April 2025
27AQI
27AQI
6th April 2025
27AQI
27AQI
7th April 2025
20AQI
20AQI
8th April 2025
21AQI
21AQI
9th April 2025
25AQI
25AQI
10th April 2025
26AQI
26AQI
11th April 2025
22AQI
22AQI
12th April 2025
21AQI
21AQI
13th April 2025
29AQI
29AQI
14th April 2025
27AQI
27AQI
15th April 2025
32AQI
32AQI
16th April 2025
29AQI
29AQI
17th April 2025
28AQI
28AQI
18th April 2025
27AQI
27AQI
19th April 2025
23AQI
23AQI
20th April 2025
24AQI
24AQI
21st April 2025
19AQI
19AQI
22nd April 2025
24AQI
24AQI
23rd April 2025
25AQI
25AQI
24th April 2025
33AQI
33AQI
25th April 2025
29AQI
29AQI
26th April 2025
22AQI
22AQI
27th April 2025
22AQI
22AQI
28th April 2025
24AQI
24AQI
29th April 2025
21AQI
21AQI
30th April 2025
25AQI
25AQI
1st May 2025
29AQI
29AQI
2nd May 2025
28AQI
28AQI
3rd May 2025
23AQI
23AQI
4th May 2025
22AQI
22AQI
5th May 2025
22AQI
22AQI
6th May 2025
21AQI
21AQI
7th May 2025
25AQI
25AQI
8th May 2025
25AQI
25AQI
9th May 2025
26AQI
26AQI
10th May 2025
21AQI
21AQI
11th May 2025
20AQI
20AQI
12th May 2025
23AQI
23AQI
13th May 2025
21AQI
21AQI
14th May 2025
20AQI
20AQI
15th May 2025
22AQI
22AQI
16th May 2025
22AQI
22AQI
17th May 2025
19AQI
19AQI
18th May 2025
23AQI
23AQI
19th May 2025
20AQI
20AQI
20th May 2025
17AQI
17AQI
21st May 2025
22AQI
22AQI
22nd May 2025
20AQI
20AQI
23rd May 2025
22AQI
22AQI
24th May 2025
26AQI
26AQI
25th May 2025
24AQI
24AQI
26th May 2025
21AQI
21AQI
27th May 2025
21AQI
21AQI
28th May 2025
29AQI
29AQI
29th May 2025
21AQI
21AQI
30th May 2025
22AQI
22AQI
31st May 2025
30AQI
30AQI
1st June 2025
30AQI
30AQI
2nd June 2025
27AQI
27AQI
3rd June 2025
24AQI
24AQI
4th June 2025
23AQI
23AQI
5th June 2025
25AQI
25AQI
6th June 2025
26AQI
26AQI
7th June 2025
25AQI
25AQI
8th June 2025
29AQI
29AQI
9th June 2025
30AQI
30AQI
10th June 2025
30AQI
30AQI
11th June 2025
28AQI
28AQI
12th June 2025
36AQI
36AQI
13th June 2025
32AQI
32AQI
14th June 2025
28AQI
28AQI
15th June 2025
26AQI
26AQI
16th June 2025
24AQI
24AQI
17th June 2025
22AQI
22AQI
18th June 2025
20AQI
20AQI
19th June 2025
30AQI
30AQI
20th June 2025
24AQI
24AQI
21st June 2025
27AQI
27AQI
22nd June 2025
26AQI
26AQI
23rd June 2025
21AQI
21AQI
24th June 2025
28AQI
28AQI
25th June 2025
31AQI
31AQI
26th June 2025
23AQI
23AQI
27th June 2025
20AQI
20AQI
28th June 2025
21AQI
21AQI
29th June 2025
22AQI
22AQI
30th June 2025
25AQI
25AQI
1st July 2025
30AQI
30AQI
2nd July 2025
33AQI
33AQI
3rd July 2025
24AQI
24AQI
4th July 2025
24AQI
24AQI
5th July 2025
26AQI
26AQI
6th July 2025
28AQI
28AQI
7th July 2025
29AQI
29AQI
8th July 2025
31AQI
31AQI
9th July 2025
31AQI
31AQI
10th July 2025
39AQI
39AQI
11th July 2025
33AQI
33AQI
12th July 2025
37AQI
37AQI
13th July 2025
36AQI
36AQI
14th July 2025
36AQI
36AQI
15th July 2025
43AQI
43AQI
16th July 2025
47AQI
47AQI
17th July 2025
49AQI
49AQI
18th July 2025
45AQI
45AQI
19th July 2025
41AQI
41AQI
20th July 2025
30AQI
30AQI
21st July 2025
31AQI
31AQI
22nd July 2025
35AQI
35AQI
23rd July 2025
32AQI
32AQI
24th July 2025
30AQI
30AQI
25th July 2025
24AQI
24AQI
26th July 2025
25AQI
25AQI
27th July 2025
20AQI
20AQI
28th July 2025
24AQI
24AQI
29th July 2025
27AQI
27AQI
30th July 2025
28AQI
28AQI
31st July 2025
31AQI
31AQI
1st August 2025
29AQI
29AQI
2nd August 2025
29AQI
29AQI
3rd August 2025
29AQI
29AQI
4th August 2025
29AQI
29AQI
5th August 2025
26AQI
26AQI
6th August 2025
25AQI
25AQI
7th August 2025
21AQI
21AQI
8th August 2025
22AQI
22AQI
9th August 2025
24AQI
24AQI
10th August 2025
28AQI
28AQI
11th August 2025
31AQI
31AQI
42AQI
33AQI
25AQI
25AQI
23AQI
26AQI
32AQI
27AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202529AQI
25
6
28
31
30
31
30
31
11
217
6
Highest AQI recorded in
January42AQI
Lowest AQI recorded in
May23AQI
202429AQI
16
1
12
29
31
31
28
31
29
1
20
11
228
12
Highest AQI recorded in
December44AQI
Lowest AQI recorded in
May21AQI
202339AQI
1
12
5
3
3
31
46
5
4
Highest AQI recorded in
August142AQI
Lowest AQI recorded in
December25AQI
202129AQI
5
5
Highest AQI recorded in
January29AQI
Lowest AQI recorded in
January29AQI
202087AQI
2
2
4
7
8
3
6
2
2
10
3
18
3
34
15
8
5
6
2
Highest AQI recorded in
October161AQI
Lowest AQI recorded in
December38AQI
Most & Least Polluted Years Over the Last 5 Years
Most Polluted Year Recorded
2020(Avg.)
87AQILeast Polluted Year Recorded
2024(Avg.)
29AQIEtna 2's annual 2025 AQI (29) shows an average percentage change of -22.1% (improved AQI) compared to previous years: 2020 (87), 2021 (29), 2023 (39), 2024 (29).
