Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Yacolt, Washington, 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

Yacolt, Washington, United States

2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
25th Aug 2025
50AQI
Lowest AQI recorded on
16th Aug 2025
13AQI

Same Day Analysis (1st August):
On this day, AQI across the 2 years varied significantly: 2026 ranks 1st highest AQI at 45 of Good air quality on the same day.

Day & Night AQI Trend: 31st Jul - 1st Aug 2026

Yacolt, Washington, United States

AQI
Day
Night
.

5 AM31st Jul 2026

8 PM

4 AM1st Aug 2026

Day time
Avg. Highest Time
12PM31st Jul

69AQI

Avg. Lowest Time
8PM31st Jul

27AQI

Night time
Avg. Highest Time
3AM1st Aug

56AQI

Avg. Lowest Time
2AM1st Aug

27AQI

In the last 24 hours,

Yacolt's AQI reached its highest point of 69 at 12 PM during the Day, while the lowest point, 27, was recorded at 2 AM during the Night between 31st Jul and 1st Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Yacolt, Washington, United States

JulAug
03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st
Day
Night
3rd Jul 2026305 AMAQI
3rd Jul 2026306 AMAQI
3rd Jul 2026297 AMAQI
3rd Jul 2026308 AMAQI
3rd Jul 2026299 AMAQI
3rd Jul 20263010 AMAQI
3rd Jul 20262911 AMAQI
3rd Jul 20262812 PMAQI
3rd Jul 2026261 PMAQI
3rd Jul 2026302 PMAQI
3rd Jul 2026283 PMAQI
3rd Jul 2026304 PMAQI
3rd Jul 2026275 PMAQI
3rd Jul 2026296 PMAQI
3rd Jul 2026257 PMAQI
3rd Jul 2026248 PMAQI
3rd Jul 2026279 PMAQI
3rd Jul 20262510 PMAQI
3rd Jul 20262811 PMAQI
4th Jul 20262812 AMAQI
4th Jul 2026281 AMAQI
4th Jul 2026262 AMAQI
4th Jul 2026273 AMAQI
4th Jul 2026274 AMAQI

19°C14/25°C

4th Jul 2026285 AMAQI
4th Jul 2026286 AMAQI
4th Jul 2026267 AMAQI
4th Jul 2026308 AMAQI
4th Jul 2026299 AMAQI
4th Jul 20262510 AMAQI
4th Jul 20262311 AMAQI
4th Jul 20262412 PMAQI
4th Jul 2026251 PMAQI
4th Jul 2026262 PMAQI
4th Jul 2026263 PMAQI
4th Jul 2026244 PMAQI
4th Jul 2026215 PMAQI
4th Jul 2026206 PMAQI
4th Jul 2026207 PMAQI
4th Jul 2026208 PMAQI
4th Jul 2026209 PMAQI
4th Jul 20262410 PMAQI
4th Jul 20262611 PMAQI
5th Jul 20262612 AMAQI
5th Jul 2026281 AMAQI
5th Jul 2026242 AMAQI
5th Jul 2026263 AMAQI
5th Jul 2026224 AMAQI

18°C13/25°C

5th Jul 2026265 AMAQI
5th Jul 2026246 AMAQI
5th Jul 2026267 AMAQI
5th Jul 2026288 AMAQI
5th Jul 2026309 AMAQI
5th Jul 20262810 AMAQI
5th Jul 20262811 AMAQI
5th Jul 20262412 PMAQI
5th Jul 2026281 PMAQI
5th Jul 2026262 PMAQI
5th Jul 2026273 PMAQI
5th Jul 2026274 PMAQI
5th Jul 2026225 PMAQI
5th Jul 2026206 PMAQI
5th Jul 2026227 PMAQI
5th Jul 2026228 PMAQI
5th Jul 2026209 PMAQI
5th Jul 20262310 PMAQI
5th Jul 20262611 PMAQI
6th Jul 20262812 AMAQI
6th Jul 2026211 AMAQI
6th Jul 2026212 AMAQI
6th Jul 2026223 AMAQI
6th Jul 2026274 AMAQI

20°C12/28°C

6th Jul 2026305 AMAQI
6th Jul 2026306 AMAQI
6th Jul 2026307 AMAQI
6th Jul 2026328 AMAQI
6th Jul 2026319 AMAQI
6th Jul 20263210 AMAQI
6th Jul 20263211 AMAQI
6th Jul 20263012 PMAQI
6th Jul 2026321 PMAQI
6th Jul 2026322 PMAQI
6th Jul 2026303 PMAQI
6th Jul 2026304 PMAQI
6th Jul 2026285 PMAQI
6th Jul 2026276 PMAQI
6th Jul 2026257 PMAQI
6th Jul 2026248 PMAQI
6th Jul 2026249 PMAQI
6th Jul 20262710 PMAQI
6th Jul 20263011 PMAQI
7th Jul 20262812 AMAQI
7th Jul 2026311 AMAQI
7th Jul 2026302 AMAQI
7th Jul 2026303 AMAQI
7th Jul 2026284 AMAQI

21°C13/30°C

7th Jul 2026305 AMAQI
7th Jul 2026306 AMAQI
7th Jul 2026287 AMAQI
7th Jul 2026328 AMAQI
7th Jul 2026349 AMAQI
7th Jul 20263210 AMAQI
7th Jul 20263011 AMAQI
7th Jul 20263012 PMAQI
7th Jul 2026281 PMAQI
7th Jul 2026302 PMAQI
7th Jul 2026303 PMAQI
7th Jul 2026304 PMAQI
7th Jul 2026285 PMAQI
7th Jul 2026286 PMAQI
7th Jul 2026267 PMAQI
7th Jul 2026268 PMAQI
7th Jul 2026249 PMAQI
7th Jul 20262610 PMAQI
7th Jul 20263011 PMAQI
8th Jul 20263012 AMAQI
8th Jul 2026261 AMAQI
8th Jul 2026252 AMAQI
8th Jul 2026223 AMAQI
8th Jul 2026214 AMAQI

19°C13/27°C

8th Jul 2026245 AMAQI
8th Jul 2026256 AMAQI
8th Jul 2026287 AMAQI
8th Jul 2026318 AMAQI
8th Jul 2026339 AMAQI
8th Jul 20263210 AMAQI
8th Jul 20263011 AMAQI
8th Jul 20263012 PMAQI
8th Jul 2026311 PMAQI
8th Jul 2026282 PMAQI
8th Jul 2026303 PMAQI
8th Jul 2026284 PMAQI
8th Jul 2026245 PMAQI
8th Jul 2026266 PMAQI
8th Jul 2026257 PMAQI
8th Jul 2026248 PMAQI
8th Jul 2026229 PMAQI
8th Jul 20262510 PMAQI
8th Jul 20263011 PMAQI
9th Jul 20262812 AMAQI
9th Jul 2026271 AMAQI
9th Jul 2026282 AMAQI
9th Jul 2026283 AMAQI
9th Jul 2026284 AMAQI

19°C14/26°C

9th Jul 2026285 AMAQI
9th Jul 2026306 AMAQI
9th Jul 2026317 AMAQI
9th Jul 2026308 AMAQI
9th Jul 2026329 AMAQI
9th Jul 20262910 AMAQI
9th Jul 20263011 AMAQI
9th Jul 20262812 PMAQI
9th Jul 2026301 PMAQI
9th Jul 2026302 PMAQI
9th Jul 2026313 PMAQI
9th Jul 2026324 PMAQI
9th Jul 2026305 PMAQI
9th Jul 2026326 PMAQI
9th Jul 2026307 PMAQI
9th Jul 2026298 PMAQI
9th Jul 2026269 PMAQI
9th Jul 20262510 PMAQI
9th Jul 20262511 PMAQI
10th Jul 20262812 AMAQI
10th Jul 2026331 AMAQI
10th Jul 2026302 AMAQI
10th Jul 2026333 AMAQI
10th Jul 2026324 AMAQI

19°C11/28°C

10th Jul 2026345 AMAQI
10th Jul 2026376 AMAQI
10th Jul 2026347 AMAQI
10th Jul 2026388 AMAQI
10th Jul 2026389 AMAQI
10th Jul 20263610 AMAQI
10th Jul 20263611 AMAQI
10th Jul 20263312 PMAQI
10th Jul 2026361 PMAQI
10th Jul 2026342 PMAQI
10th Jul 2026363 PMAQI
10th Jul 2026364 PMAQI
10th Jul 2026355 PMAQI
10th Jul 2026396 PMAQI
10th Jul 2026297 PMAQI
10th Jul 2026298 PMAQI
10th Jul 2026269 PMAQI
10th Jul 20262610 PMAQI
10th Jul 20262511 PMAQI
11th Jul 20262812 AMAQI
11th Jul 2026321 AMAQI
11th Jul 2026322 AMAQI
11th Jul 2026323 AMAQI
11th Jul 2026304 AMAQI

19°C12/27°C

11th Jul 2026305 AMAQI
11th Jul 2026346 AMAQI
11th Jul 2026327 AMAQI
11th Jul 2026318 AMAQI
11th Jul 2026349 AMAQI
11th Jul 20263210 AMAQI
11th Jul 20263511 AMAQI
11th Jul 20263012 PMAQI
11th Jul 2026301 PMAQI
11th Jul 2026312 PMAQI
11th Jul 2026323 PMAQI
11th Jul 2026334 PMAQI
11th Jul 2026325 PMAQI
11th Jul 2026306 PMAQI
11th Jul 2026297 PMAQI
11th Jul 2026288 PMAQI
11th Jul 2026249 PMAQI
11th Jul 20262510 PMAQI
11th Jul 20262311 PMAQI
12th Jul 20262512 AMAQI
12th Jul 2026311 AMAQI
12th Jul 2026302 AMAQI
12th Jul 2026303 AMAQI
12th Jul 2026324 AMAQI

18°C14/24°C

12th Jul 2026305 AMAQI
12th Jul 2026326 AMAQI
12th Jul 2026307 AMAQI
12th Jul 2026308 AMAQI
12th Jul 2026329 AMAQI
12th Jul 20263110 AMAQI
12th Jul 20263111 AMAQI
12th Jul 20262812 PMAQI
12th Jul 2026301 PMAQI
12th Jul 2026302 PMAQI
12th Jul 2026293 PMAQI
12th Jul 2026304 PMAQI
12th Jul 2026305 PMAQI
12th Jul 2026316 PMAQI
12th Jul 2026287 PMAQI
12th Jul 2026278 PMAQI
12th Jul 2026239 PMAQI
12th Jul 20262210 PMAQI
12th Jul 20262411 PMAQI
13th Jul 20262612 AMAQI
13th Jul 2026321 AMAQI
13th Jul 2026342 AMAQI
13th Jul 2026343 AMAQI
13th Jul 2026324 AMAQI

18°C11/26°C

13th Jul 2026345 AMAQI
13th Jul 2026336 AMAQI
13th Jul 2026357 AMAQI
13th Jul 2026348 AMAQI
13th Jul 2026379 AMAQI
13th Jul 20263210 AMAQI
13th Jul 20263411 AMAQI
13th Jul 20262812 PMAQI
13th Jul 2026341 PMAQI
13th Jul 2026332 PMAQI
13th Jul 2026323 PMAQI
13th Jul 2026314 PMAQI
13th Jul 2026325 PMAQI
13th Jul 2026366 PMAQI
13th Jul 2026267 PMAQI
13th Jul 2026278 PMAQI
13th Jul 2026239 PMAQI
13th Jul 20262210 PMAQI
13th Jul 20262211 PMAQI
14th Jul 20262612 AMAQI
14th Jul 2026341 AMAQI
14th Jul 2026322 AMAQI
14th Jul 2026323 AMAQI
14th Jul 2026324 AMAQI

20°C11/29°C

14th Jul 2026335 AMAQI
14th Jul 2026346 AMAQI
14th Jul 2026387 AMAQI
14th Jul 2026368 AMAQI
14th Jul 2026369 AMAQI
14th Jul 20263610 AMAQI
14th Jul 20263411 AMAQI
14th Jul 20263012 PMAQI
14th Jul 2026321 PMAQI
14th Jul 2026242 PMAQI
14th Jul 2026323 PMAQI
14th Jul 2026324 PMAQI
14th Jul 2026305 PMAQI
14th Jul 2026326 PMAQI
14th Jul 2026287 PMAQI
14th Jul 2026268 PMAQI
14th Jul 2026229 PMAQI
14th Jul 20262010 PMAQI
14th Jul 20262011 PMAQI
15th Jul 20262412 AMAQI
15th Jul 2026241 AMAQI
15th Jul 2026262 AMAQI
15th Jul 2026263 AMAQI
15th Jul 2026284 AMAQI

21°C13/30°C

15th Jul 2026245 AMAQI
15th Jul 2026306 AMAQI
15th Jul 2026267 AMAQI
15th Jul 2026268 AMAQI
15th Jul 2026289 AMAQI
15th Jul 20263010 AMAQI
15th Jul 20262911 AMAQI
15th Jul 20263012 PMAQI
15th Jul 2026301 PMAQI
15th Jul 2026302 PMAQI
15th Jul 2026323 PMAQI
15th Jul 2026294 PMAQI
15th Jul 2026335 PMAQI
15th Jul 2026326 PMAQI
15th Jul 2026307 PMAQI
15th Jul 2026288 PMAQI
15th Jul 2026269 PMAQI
15th Jul 20262410 PMAQI
15th Jul 20262611 PMAQI
16th Jul 20262512 AMAQI
16th Jul 2026281 AMAQI
16th Jul 2026302 AMAQI
16th Jul 2026313 AMAQI
16th Jul 2026304 AMAQI

21°C14/29°C

16th Jul 2026295 AMAQI
16th Jul 2026296 AMAQI
16th Jul 2026327 AMAQI
16th Jul 2026328 AMAQI
16th Jul 2026309 AMAQI
16th Jul 20263010 AMAQI
16th Jul 20263011 AMAQI
16th Jul 20263212 PMAQI
16th Jul 2026311 PMAQI
16th Jul 2026302 PMAQI
16th Jul 2026293 PMAQI
16th Jul 2026244 PMAQI
16th Jul 2026285 PMAQI
16th Jul 2026316 PMAQI
16th Jul 2026307 PMAQI
16th Jul 2026308 PMAQI
16th Jul 2026289 PMAQI
16th Jul 20262610 PMAQI
16th Jul 20262611 PMAQI
17th Jul 20262912 AMAQI
17th Jul 2026241 AMAQI
17th Jul 2026502 AMAQI
17th Jul 2026703 AMAQI
17th Jul 20261274 AMAQI

18°C16/24°C

17th Jul 2026685 AMAQI
17th Jul 2026276 AMAQI
17th Jul 2026437 AMAQI
17th Jul 2026408 AMAQI
17th Jul 2026279 AMAQI
17th Jul 20264410 AMAQI
17th Jul 20267311 AMAQI
17th Jul 20266712 PMAQI
17th Jul 2026541 PMAQI
17th Jul 2026542 PMAQI
17th Jul 2026213 PMAQI
17th Jul 2026294 PMAQI
17th Jul 2026385 PMAQI
17th Jul 2026366 PMAQI
17th Jul 2026367 PMAQI
17th Jul 2026428 PMAQI
17th Jul 2026369 PMAQI
17th Jul 20264510 PMAQI
17th Jul 20262911 PMAQI
18th Jul 20263112 AMAQI
18th Jul 2026361 AMAQI
18th Jul 2026402 AMAQI
18th Jul 2026463 AMAQI
18th Jul 2026444 AMAQI

17°C12/24°C

18th Jul 2026625 AMAQI
18th Jul 2026646 AMAQI
18th Jul 2026657 AMAQI
18th Jul 2026628 AMAQI
18th Jul 2026589 AMAQI
18th Jul 20266610 AMAQI
18th Jul 20267811 AMAQI
18th Jul 20264212 PMAQI
18th Jul 2026601 PMAQI
18th Jul 2026582 PMAQI
18th Jul 2026653 PMAQI
18th Jul 2026234 PMAQI
18th Jul 2026405 PMAQI
18th Jul 2026216 PMAQI
18th Jul 2026407 PMAQI
18th Jul 2026378 PMAQI
18th Jul 2026399 PMAQI
18th Jul 20263610 PMAQI
18th Jul 20263811 PMAQI
19th Jul 20263612 AMAQI
19th Jul 2026321 AMAQI
19th Jul 2026462 AMAQI
19th Jul 2026503 AMAQI
19th Jul 2026594 AMAQI

19°C12/27°C

19th Jul 2026725 AMAQI
19th Jul 2026626 AMAQI
19th Jul 2026587 AMAQI
19th Jul 2026408 AMAQI
19th Jul 2026559 AMAQI
19th Jul 20263410 AMAQI
19th Jul 20263611 AMAQI
19th Jul 20263112 PMAQI
19th Jul 2026361 PMAQI
19th Jul 2026402 PMAQI
19th Jul 2026423 PMAQI
19th Jul 2026314 PMAQI
19th Jul 2026425 PMAQI
19th Jul 2026466 PMAQI
19th Jul 2026497 PMAQI
19th Jul 2026268 PMAQI
19th Jul 2026439 PMAQI
19th Jul 20265610 PMAQI
19th Jul 20264211 PMAQI
20th Jul 20262712 AMAQI
20th Jul 2026281 AMAQI
20th Jul 2026242 AMAQI
20th Jul 2026313 AMAQI
20th Jul 2026254 AMAQI

20°C12/29°C

20th Jul 2026825 AMAQI
20th Jul 2026576 AMAQI
20th Jul 2026797 AMAQI
20th Jul 2026548 AMAQI
20th Jul 2026739 AMAQI
20th Jul 20263810 AMAQI
20th Jul 20264611 AMAQI
20th Jul 20264412 PMAQI
20th Jul 2026441 PMAQI
20th Jul 2026422 PMAQI
20th Jul 2026483 PMAQI
20th Jul 2026314 PMAQI
20th Jul 2026305 PMAQI
20th Jul 2026426 PMAQI
20th Jul 2026467 PMAQI
20th Jul 2026449 PMAQI
20th Jul 20264810 PMAQI
20th Jul 20264611 PMAQI
21st Jul 20264612 AMAQI
21st Jul 2026491 AMAQI
21st Jul 2026502 AMAQI
21st Jul 2026553 AMAQI
21st Jul 2026534 AMAQI

23°C15/32°C

21st Jul 2026515 AMAQI
21st Jul 2026516 AMAQI
21st Jul 2026497 AMAQI
21st Jul 2026488 AMAQI
21st Jul 2026449 AMAQI
21st Jul 20265010 AMAQI
21st Jul 20265311 AMAQI
21st Jul 20265212 PMAQI
21st Jul 2026551 PMAQI
21st Jul 2026572 PMAQI
21st Jul 2026623 PMAQI
21st Jul 2026634 PMAQI
21st Jul 2026645 PMAQI
21st Jul 2026676 PMAQI
21st Jul 2026687 PMAQI
21st Jul 2026728 PMAQI
21st Jul 2026649 PMAQI
21st Jul 20266010 PMAQI
21st Jul 20265611 PMAQI
22nd Jul 20265512 AMAQI
22nd Jul 2026541 AMAQI
22nd Jul 2026542 AMAQI
22nd Jul 2026533 AMAQI
22nd Jul 2026564 AMAQI

27°C17/37°C

22nd Jul 2026565 AMAQI
22nd Jul 2026556 AMAQI
22nd Jul 2026537 AMAQI
22nd Jul 2026538 AMAQI
22nd Jul 2026549 AMAQI
22nd Jul 20265510 AMAQI
22nd Jul 20265711 AMAQI
22nd Jul 20266212 PMAQI
22nd Jul 2026601 PMAQI
22nd Jul 2026592 PMAQI
22nd Jul 2026623 PMAQI
22nd Jul 2026604 PMAQI
22nd Jul 2026645 PMAQI
22nd Jul 2026636 PMAQI
22nd Jul 2026577 PMAQI
22nd Jul 2026558 PMAQI
22nd Jul 2026539 PMAQI
22nd Jul 20265510 PMAQI
22nd Jul 20265311 PMAQI
23rd Jul 20265112 AMAQI
23rd Jul 2026501 AMAQI
23rd Jul 2026422 AMAQI
23rd Jul 2026443 AMAQI
23rd Jul 2026444 AMAQI

27°C20/38°C

23rd Jul 2026425 AMAQI
23rd Jul 2026426 AMAQI
23rd Jul 2026447 AMAQI
23rd Jul 2026468 AMAQI
23rd Jul 2026409 AMAQI
23rd Jul 20264210 AMAQI
23rd Jul 20264211 AMAQI
23rd Jul 20264012 PMAQI
23rd Jul 2026401 PMAQI
23rd Jul 2026542 PMAQI
23rd Jul 2026403 PMAQI
23rd Jul 2026234 PMAQI
23rd Jul 2026405 PMAQI
23rd Jul 2026366 PMAQI
23rd Jul 2026267 PMAQI
23rd Jul 2026258 PMAQI
23rd Jul 2026409 PMAQI
23rd Jul 20266610 PMAQI
23rd Jul 20265411 PMAQI
24th Jul 20263612 AMAQI
24th Jul 2026401 AMAQI
24th Jul 2026422 AMAQI
24th Jul 2026683 AMAQI
24th Jul 2026444 AMAQI

21°C17/27°C

24th Jul 2026405 AMAQI
24th Jul 2026446 AMAQI
24th Jul 2026407 AMAQI
24th Jul 2026658 AMAQI
24th Jul 2026259 AMAQI
24th Jul 20264510 AMAQI
24th Jul 20267111 AMAQI
24th Jul 20266812 PMAQI
24th Jul 2026291 PMAQI
24th Jul 2026682 PMAQI
24th Jul 2026623 PMAQI
24th Jul 2026644 PMAQI
24th Jul 2026325 PMAQI
24th Jul 2026406 PMAQI
24th Jul 2026657 PMAQI
24th Jul 2026658 PMAQI
24th Jul 2026609 PMAQI
24th Jul 20265610 PMAQI
24th Jul 20265611 PMAQI
25th Jul 20265412 AMAQI
25th Jul 2026541 AMAQI
25th Jul 2026672 AMAQI
25th Jul 2026603 AMAQI
25th Jul 2026564 AMAQI

22°C15/31°C

25th Jul 2026565 AMAQI
25th Jul 2026346 AMAQI
25th Jul 2026527 AMAQI
25th Jul 2026258 AMAQI
25th Jul 2026579 AMAQI
25th Jul 20266210 AMAQI
25th Jul 20266411 AMAQI
25th Jul 20262112 PMAQI
25th Jul 2026561 PMAQI
25th Jul 2026602 PMAQI
25th Jul 2026603 PMAQI
25th Jul 2026404 PMAQI
25th Jul 2026315 PMAQI
25th Jul 2026406 PMAQI
25th Jul 2026277 PMAQI
25th Jul 2026468 PMAQI
25th Jul 2026539 PMAQI
25th Jul 20265710 PMAQI
25th Jul 20264011 PMAQI
26th Jul 20264412 AMAQI
26th Jul 2026581 AMAQI
26th Jul 2026582 AMAQI
26th Jul 2026363 AMAQI
26th Jul 2026274 AMAQI

19°C14/23°C

26th Jul 2026625 AMAQI
26th Jul 2026606 AMAQI
26th Jul 2026667 AMAQI
26th Jul 2026688 AMAQI
26th Jul 2026649 AMAQI
26th Jul 20266810 AMAQI
26th Jul 20265811 AMAQI
26th Jul 20265612 PMAQI
26th Jul 2026441 PMAQI
26th Jul 2026212 PMAQI
26th Jul 2026553 PMAQI
26th Jul 2026214 PMAQI
26th Jul 2026465 PMAQI
26th Jul 2026276 PMAQI
26th Jul 2026637 PMAQI
26th Jul 2026588 PMAQI
26th Jul 2026569 PMAQI
26th Jul 20266010 PMAQI
26th Jul 20265711 PMAQI
27th Jul 20264712 AMAQI
27th Jul 2026561 AMAQI
27th Jul 2026222 AMAQI
27th Jul 2026383 AMAQI
27th Jul 2026504 AMAQI

20°C16/28°C

27th Jul 2026405 AMAQI
27th Jul 2026606 AMAQI
27th Jul 2026717 AMAQI
27th Jul 2026678 AMAQI
27th Jul 2026449 AMAQI
27th Jul 20266810 AMAQI
27th Jul 20266411 AMAQI
27th Jul 20266212 PMAQI
27th Jul 2026521 PMAQI
27th Jul 2026602 PMAQI
27th Jul 2026583 PMAQI
27th Jul 2026504 PMAQI
27th Jul 2026275 PMAQI
27th Jul 2026386 PMAQI
27th Jul 2026367 PMAQI
27th Jul 2026298 PMAQI
27th Jul 2026449 PMAQI
27th Jul 20262510 PMAQI
27th Jul 20262311 PMAQI
28th Jul 20265812 AMAQI
28th Jul 2026601 AMAQI
28th Jul 2026622 AMAQI
28th Jul 2026583 AMAQI
28th Jul 2026404 AMAQI

21°C13/28°C

28th Jul 2026655 AMAQI
28th Jul 2026326 AMAQI
28th Jul 2026287 AMAQI
28th Jul 2026548 AMAQI
28th Jul 2026729 AMAQI
28th Jul 20267210 AMAQI
28th Jul 20266811 AMAQI
28th Jul 20266612 PMAQI
28th Jul 2026601 PMAQI
28th Jul 2026472 PMAQI
28th Jul 2026603 PMAQI
28th Jul 2026324 PMAQI
28th Jul 2026385 PMAQI
28th Jul 2026366 PMAQI
28th Jul 2026297 PMAQI
28th Jul 2026248 PMAQI
28th Jul 2026469 PMAQI
28th Jul 20265210 PMAQI
28th Jul 20261811 PMAQI
29th Jul 20264612 AMAQI
29th Jul 2026321 AMAQI
29th Jul 2026222 AMAQI
29th Jul 2026423 AMAQI
29th Jul 2026544 AMAQI

19°C15/26°C

29th Jul 2026655 AMAQI
29th Jul 2026606 AMAQI
29th Jul 2026447 AMAQI
29th Jul 2026408 AMAQI
29th Jul 2026719 AMAQI
29th Jul 20263210 AMAQI
29th Jul 20264411 AMAQI
29th Jul 20267112 PMAQI
29th Jul 2026671 PMAQI
29th Jul 2026722 PMAQI
29th Jul 2026733 PMAQI
29th Jul 2026384 PMAQI
29th Jul 2026235 PMAQI
29th Jul 2026406 PMAQI
29th Jul 2026597 PMAQI
29th Jul 2026468 PMAQI
29th Jul 2026259 PMAQI
29th Jul 20266610 PMAQI
29th Jul 20262711 PMAQI
30th Jul 20262712 AMAQI
30th Jul 2026521 AMAQI
30th Jul 2026432 AMAQI
30th Jul 2026523 AMAQI
30th Jul 2026404 AMAQI

20°C13/27°C

30th Jul 2026525 AMAQI
30th Jul 2026636 AMAQI
30th Jul 2026717 AMAQI
30th Jul 2026678 AMAQI
30th Jul 2026669 AMAQI
30th Jul 20266810 AMAQI
30th Jul 20266411 AMAQI
30th Jul 20267012 PMAQI
30th Jul 2026731 PMAQI
30th Jul 2026652 PMAQI
30th Jul 2026623 PMAQI
30th Jul 2026684 PMAQI
30th Jul 2026585 PMAQI
30th Jul 2026666 PMAQI
30th Jul 2026677 PMAQI
30th Jul 2026448 PMAQI
30th Jul 2026739 PMAQI
30th Jul 20264710 PMAQI
30th Jul 20265211 PMAQI
31st Jul 20264012 AMAQI
31st Jul 2026491 AMAQI
31st Jul 2026522 AMAQI
31st Jul 2026543 AMAQI
31st Jul 2026644 AMAQI

20°C12/28°C

31st Jul 2026625 AMAQI
31st Jul 2026606 AMAQI
31st Jul 2026587 AMAQI
31st Jul 2026428 AMAQI
31st Jul 2026609 AMAQI
31st Jul 20265210 AMAQI
31st Jul 20265811 AMAQI
31st Jul 20266912 PMAQI
31st Jul 2026421 PMAQI
31st Jul 2026492 PMAQI
31st Jul 2026363 PMAQI
31st Jul 2026384 PMAQI
31st Jul 2026295 PMAQI
31st Jul 2026296 PMAQI
31st Jul 2026297 PMAQI
31st Jul 2026278 PMAQI
31st Jul 2026409 PMAQI
31st Jul 20263810 PMAQI
31st Jul 20265211 PMAQI
1st Aug 20265412 AMAQI
1st Aug 2026271 AMAQI
1st Aug 2026272 AMAQI
1st Aug 2026563 AMAQI
1st Aug 2026564 AMAQI

22°C13/31°C

1st Aug 2026665 AMAQI
5 AM
1st Aug 2026426 AMAQI
1st Aug 2026467 AMAQI
1st Aug 2026458 AMAQI
1st Aug 2026659 AMAQI
1st Aug 20266710 AMAQI
1st Aug 20267311 AMAQI
1st Aug 20266812 PMAQI
12 PM
1st Aug 2026601 PMAQI
1st Aug 2026542 PMAQI
1st Aug 2026423 PMAQI
1st Aug 2026254 PMAQI
1st Aug 2026325 PMAQI
1st Aug 2026466 PMAQI
1st Aug 2026387 PMAQI
1st Aug 2026288 PMAQI
8 PM
1st Aug 2026239 PMAQI
1st Aug 20261810 PMAQI
1st Aug 20261811 PMAQI
12 AM
4 AM

18°C14/23°C

Day time
Avg. Highest Time
11 AM

46AQI

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

35AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 AM to 11 AM (Avg. 46), while the lowest AQI was between 4 PM to 5 PM (Avg. 35).
Night time
Avg. Highest Time
3 AM - 4 AM

41AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
11 PM

34AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 3 AM to 4 AM (Avg. 41), while the lowest AQI was between 11 PM to 11 PM (Avg. 34).

2026 Days Vs Air Quality

Yacolt, Washington, United States

2026

93%

195

7%

15

Total number of days with different AQI categories in last 213 days in 2026 (152 days remaining)

Good
195 Days
Moderate
15 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 213 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

Yacolt, Washington, 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
40AQI (US)
2nd January 2026
17AQI (US)
3rd January 2026
17AQI (US)
4th January 2026
12AQI (US)
5th January 2026
20AQI (US)
6th January 2026
20AQI (US)
7th January 2026
16AQI (US)
8th January 2026
15AQI (US)
9th January 2026
17AQI (US)
10th January 2026
27AQI (US)
11th January 2026
37AQI (US)
12th January 2026
27AQI (US)
13th January 2026
33AQI (US)
14th January 2026
35AQI (US)
15th January 2026
22AQI (US)
16th January 2026
24AQI (US)
17th January 2026
18AQI (US)
18th January 2026
36AQI (US)
19th January 2026
19AQI (US)
20th January 2026
28AQI (US)
21st January 2026
25AQI (US)
22nd January 2026
54AQI (US)
23rd January 2026
57AQI (US)
24th January 2026
50AQI (US)
25th January 2026
49AQI (US)
26th January 2026
46AQI (US)
27th January 2026
37AQI (US)
28th January 2026
42AQI (US)
29th January 2026
49AQI (US)
30th January 2026
50AQI (US)
31st January 2026
40AQI (US)
1st February 2026
51AQI (US)
2nd February 2026
51AQI (US)
3rd February 2026
49AQI (US)
4th February 2026
44AQI (US)
5th February 2026
49AQI (US)
6th February 2026
38AQI (US)
7th February 2026
38AQI (US)
8th February 2026
43AQI (US)
9th February 2026
45AQI (US)
10th February 2026
45AQI (US)
11th February 2026
39AQI (US)
12th February 2026
40AQI (US)
13th February 2026
48AQI (US)
14th February 2026
45AQI (US)
15th February 2026
37AQI (US)
16th February 2026
44AQI (US)
17th February 2026
45AQI (US)
18th February 2026
41AQI (US)
19th February 2026
43AQI (US)
20th February 2026
38AQI (US)
21st February 2026
34AQI (US)
22nd February 2026
36AQI (US)
23rd February 2026
39AQI (US)
24th February 2026
45AQI (US)
25th February 2026
41AQI (US)
26th February 2026
35AQI (US)
27th February 2026
37AQI (US)
28th February 2026
37AQI (US)
1st March 2026
40AQI (US)
2nd March 2026
56AQI (US)
3rd March 2026
44AQI (US)
4th March 2026
47AQI (US)
5th March 2026
38AQI (US)
6th March 2026
31AQI (US)
7th March 2026
40AQI (US)
8th March 2026
39AQI (US)
9th March 2026
37AQI (US)
10th March 2026
37AQI (US)
11th March 2026
43AQI (US)
12th March 2026
40AQI (US)
13th March 2026
41AQI (US)
14th March 2026
34AQI (US)
15th March 2026
32AQI (US)
16th March 2026
35AQI (US)
17th March 2026
31AQI (US)
18th March 2026
31AQI (US)
19th March 2026
33AQI (US)
20th March 2026
44AQI (US)
21st March 2026
38AQI (US)
22nd March 2026
35AQI (US)
23rd March 2026
39AQI (US)
24th March 2026
36AQI (US)
25th March 2026
32AQI (US)
26th March 2026
28AQI (US)
27th March 2026
28AQI (US)
28th March 2026
31AQI (US)
29th March 2026
25AQI (US)
30th March 2026
26AQI (US)
31st March 2026
23AQI (US)
1st April 2026
29AQI (US)
2nd April 2026
31AQI (US)
3rd April 2026
26AQI (US)
4th April 2026
31AQI (US)
5th April 2026
28AQI (US)
6th April 2026
27AQI (US)
7th April 2026
25AQI (US)
8th April 2026
30AQI (US)
9th April 2026
27AQI (US)
10th April 2026
31AQI (US)
11th April 2026
30AQI (US)
12th April 2026
24AQI (US)
13th April 2026
29AQI (US)
14th April 2026
33AQI (US)
15th April 2026
32AQI (US)
16th April 2026
29AQI (US)
17th April 2026
18th April 2026
29AQI (US)
19th April 2026
33AQI (US)
20th April 2026
27AQI (US)
21st April 2026
26AQI (US)
22nd April 2026
23rd April 2026
23AQI (US)
24th April 2026
26AQI (US)
25th April 2026
28AQI (US)
26th April 2026
32AQI (US)
27th April 2026
26AQI (US)
28th April 2026
24AQI (US)
29th April 2026
24AQI (US)
30th April 2026
26AQI (US)
1st May 2026
25AQI (US)
2nd May 2026
23AQI (US)
3rd May 2026
23AQI (US)
4th May 2026
34AQI (US)
5th May 2026
35AQI (US)
6th May 2026
29AQI (US)
7th May 2026
26AQI (US)
8th May 2026
27AQI (US)
9th May 2026
10th May 2026
32AQI (US)
11th May 2026
27AQI (US)
12th May 2026
25AQI (US)
13th May 2026
27AQI (US)
14th May 2026
23AQI (US)
15th May 2026
48AQI (US)
16th May 2026
52AQI (US)
17th May 2026
58AQI (US)
18th May 2026
57AQI (US)
19th May 2026
56AQI (US)
20th May 2026
51AQI (US)
21st May 2026
41AQI (US)
22nd May 2026
49AQI (US)
23rd May 2026
49AQI (US)
24th May 2026
47AQI (US)
25th May 2026
43AQI (US)
26th May 2026
28AQI (US)
27th May 2026
28AQI (US)
28th May 2026
27AQI (US)
29th May 2026
26AQI (US)
30th May 2026
27AQI (US)
31st May 2026
30AQI (US)
1st June 2026
32AQI (US)
2nd June 2026
31AQI (US)
3rd June 2026
30AQI (US)
4th June 2026
26AQI (US)
5th June 2026
28AQI (US)
6th June 2026
25AQI (US)
7th June 2026
24AQI (US)
8th June 2026
27AQI (US)
9th June 2026
26AQI (US)
10th June 2026
27AQI (US)
11th June 2026
27AQI (US)
12th June 2026
27AQI (US)
13th June 2026
25AQI (US)
14th June 2026
24AQI (US)
15th June 2026
26AQI (US)
16th June 2026
27AQI (US)
17th June 2026
28AQI (US)
18th June 2026
27AQI (US)
19th June 2026
25AQI (US)
20th June 2026
25AQI (US)
21st June 2026
22AQI (US)
22nd June 2026
25AQI (US)
23rd June 2026
25AQI (US)
24th June 2026
25AQI (US)
25th June 2026
25AQI (US)
26th June 2026
27AQI (US)
27th June 2026
30AQI (US)
28th June 2026
28AQI (US)
29th June 2026
25AQI (US)
30th June 2026
27AQI (US)
1st July 2026
26AQI (US)
2nd July 2026
28AQI (US)
3rd July 2026
28AQI (US)
4th July 2026
25AQI (US)
5th July 2026
25AQI (US)
6th July 2026
28AQI (US)
7th July 2026
29AQI (US)
8th July 2026
27AQI (US)
9th July 2026
29AQI (US)
10th July 2026
33AQI (US)
11th July 2026
30AQI (US)
12th July 2026
29AQI (US)
13th July 2026
31AQI (US)
14th July 2026
30AQI (US)
15th July 2026
28AQI (US)
16th July 2026
29AQI (US)
17th July 2026
46AQI (US)
18th July 2026
48AQI (US)
19th July 2026
44AQI (US)
20th July 2026
45AQI (US)
21st July 2026
56AQI (US)
22nd July 2026
57AQI (US)
23rd July 2026
42AQI (US)
24th July 2026
51AQI (US)
25th July 2026
49AQI (US)
26th July 2026
51AQI (US)
27th July 2026
47AQI (US)
28th July 2026
49AQI (US)
29th July 2026
48AQI (US)
30th July 2026
59AQI (US)
31st July 2026
47AQI (US)
1st August 2026
45AQI (US)
2nd August 2026
3rd August 2026
4th August 2026
5th August 2026
6th August 2026
7th August 2026
8th August 2026
9th August 2026
10th August 2026
11th August 2026
12th August 2026
13th August 2026
14th August 2026
15th August 2026
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026

32AQI (US)

42AQI (US)

36AQI (US)

28AQI (US)

36AQI (US)

27AQI (US)

39AQI (US)

45AQI (US)

No. of days

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

202634AQI (US)

29
2
26
2
30
1
28
25
5
30
26
5
1
195
15

Highest AQI (US) recorded in

August

45AQI (US)

Lowest AQI (US) recorded in

June

27AQI (US)

202525AQI (US)

6
30
31
30
31
31
26
4
30
1
29
1
28
3
272
9

Highest AQI (US) recorded in

October

35AQI (US)

Lowest AQI (US) recorded in

May

17AQI (US)

Most & Least Polluted Years Over the Last 2 Years

Most Polluted Year Recorded
2026(Avg.)
34AQI (US)
Least Polluted Year Recorded
2025(Avg.)
25AQI (US)

Yacolt's annual 2026 AQI (US) (34) shows an average percentage change of 36% (worsened AQI (US)) compared to previous years: 2025 (25).