Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

4Th St, Aberdeen, 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

4Th St, Aberdeen, Washington, United States

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
5th Aug 2026
69AQI
Lowest AQI recorded on
6th Aug 2023
10AQI

Same Day Analysis (9th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 53 of Moderate air quality on the same day.

Day & Night AQI Trend: 9th Aug - 10th Aug 2026

4Th St, Aberdeen, Washington, United States

AQI
Day
Night
.

5 AM9th Aug 2026

8 PM

4 AM10th Aug 2026

Day time
Avg. Highest Time
7PM9th Aug

118AQI

Avg. Lowest Time
6AM9th Aug

22AQI

Night time
Avg. Highest Time
11PM9th Aug

65AQI

Avg. Lowest Time
2AM10th Aug

21AQI

In the last 24 hours,

4Th St's AQI reached its highest point of 118 at 7 PM during the Day, while the lowest point, 21, was recorded at 2 AM during the Night between 9th Aug and 10th Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

4Th St, Aberdeen, Washington, United States

JulAug
12th - 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
12th Jul 2026305 AMAQI
12th Jul 2026306 AMAQI
12th Jul 2026327 AMAQI
12th Jul 2026308 AMAQI
12th Jul 2026329 AMAQI
12th Jul 20263410 AMAQI
12th Jul 20263011 AMAQI
12th Jul 20262812 PMAQI
12th Jul 2026311 PMAQI
12th Jul 2026302 PMAQI
12th Jul 2026283 PMAQI
12th Jul 2026304 PMAQI
12th Jul 2026315 PMAQI
12th Jul 2026296 PMAQI
12th Jul 2026277 PMAQI
12th Jul 2026258 PMAQI
12th Jul 2026239 PMAQI
12th Jul 20262210 PMAQI
12th Jul 20262211 PMAQI
13th Jul 20262612 AMAQI
13th Jul 2026321 AMAQI
13th Jul 2026322 AMAQI
13th Jul 2026323 AMAQI
13th Jul 2026314 AMAQI

16°C10/20°C

13th Jul 2026335 AMAQI
13th Jul 2026326 AMAQI
13th Jul 2026367 AMAQI
13th Jul 2026358 AMAQI
13th Jul 2026349 AMAQI
13th Jul 20263610 AMAQI
13th Jul 20263211 AMAQI
13th Jul 20262812 PMAQI
13th Jul 2026321 PMAQI
13th Jul 2026322 PMAQI
13th Jul 2026313 PMAQI
13th Jul 2026294 PMAQI
13th Jul 2026325 PMAQI
13th Jul 2026346 PMAQI
13th Jul 2026267 PMAQI
13th Jul 2026248 PMAQI
13th Jul 2026209 PMAQI
13th Jul 20262410 PMAQI
13th Jul 20262211 PMAQI
14th Jul 20262612 AMAQI
14th Jul 2026331 AMAQI
14th Jul 2026312 AMAQI
14th Jul 2026303 AMAQI
14th Jul 2026324 AMAQI

18°C8/26°C

14th Jul 2026325 AMAQI
14th Jul 2026336 AMAQI
14th Jul 2026347 AMAQI
14th Jul 2026368 AMAQI
14th Jul 2026349 AMAQI
14th Jul 20263210 AMAQI
14th Jul 20263611 AMAQI
14th Jul 20262812 PMAQI
14th Jul 2026321 PMAQI
14th Jul 2026302 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 2026209 PMAQI
14th Jul 20262010 PMAQI
14th Jul 20262211 PMAQI
15th Jul 20262212 AMAQI
15th Jul 2026251 AMAQI
15th Jul 2026282 AMAQI
15th Jul 2026243 AMAQI
15th Jul 2026264 AMAQI

16°C9/23°C

15th Jul 2026265 AMAQI
15th Jul 2026286 AMAQI
15th Jul 2026267 AMAQI
15th Jul 2026268 AMAQI
15th Jul 2026289 AMAQI
15th Jul 20263010 AMAQI
15th Jul 20262911 AMAQI
15th Jul 20262712 PMAQI
15th Jul 2026301 PMAQI
15th Jul 2026302 PMAQI
15th Jul 2026313 PMAQI
15th Jul 2026314 PMAQI
15th Jul 2026325 PMAQI
15th Jul 2026326 PMAQI
15th Jul 2026287 PMAQI
15th Jul 2026308 PMAQI
15th Jul 2026279 PMAQI
15th Jul 20262710 PMAQI
15th Jul 20262411 PMAQI
16th Jul 20262512 AMAQI
16th Jul 2026261 AMAQI
16th Jul 2026322 AMAQI
16th Jul 2026293 AMAQI
16th Jul 2026304 AMAQI

16°C13/22°C

16th Jul 2026295 AMAQI
16th Jul 2026286 AMAQI
16th Jul 2026327 AMAQI
16th Jul 2026328 AMAQI
16th Jul 2026329 AMAQI
16th Jul 20263210 AMAQI
16th Jul 20263111 AMAQI
16th Jul 20263112 PMAQI
16th Jul 2026321 PMAQI
16th Jul 2026302 PMAQI
16th Jul 2026303 PMAQI
16th Jul 2026264 PMAQI
16th Jul 2026285 PMAQI
16th Jul 2026306 PMAQI
16th Jul 2026307 PMAQI
16th Jul 2026288 PMAQI
16th Jul 2026289 PMAQI
16th Jul 20262610 PMAQI
16th Jul 20262611 PMAQI
17th Jul 20261912 AMAQI
17th Jul 2026211 AMAQI
17th Jul 2026522 AMAQI
17th Jul 2026563 AMAQI
17th Jul 2026604 AMAQI

15°C12/18°C

17th Jul 2026545 AMAQI
17th Jul 2026506 AMAQI
17th Jul 2026507 AMAQI
17th Jul 2026288 AMAQI
17th Jul 2026269 AMAQI
17th Jul 20262910 AMAQI
17th Jul 20262611 AMAQI
17th Jul 20264612 PMAQI
17th Jul 2026581 PMAQI
17th Jul 2026812 PMAQI
17th Jul 2026643 PMAQI
17th Jul 2026704 PMAQI
17th Jul 2026545 PMAQI
17th Jul 2026236 PMAQI
17th Jul 2026697 PMAQI
17th Jul 2026528 PMAQI
17th Jul 2026189 PMAQI
17th Jul 20261810 PMAQI
17th Jul 20261611 PMAQI
18th Jul 20262012 AMAQI
18th Jul 2026201 AMAQI
18th Jul 2026212 AMAQI
18th Jul 2026183 AMAQI
18th Jul 2026204 AMAQI

16°C12/20°C

18th Jul 2026185 AMAQI
18th Jul 2026186 AMAQI
18th Jul 2026187 AMAQI
18th Jul 2026198 AMAQI
18th Jul 2026199 AMAQI
18th Jul 20261810 AMAQI
18th Jul 20262411 AMAQI
18th Jul 20264212 PMAQI
18th Jul 2026861 PMAQI
18th Jul 20261022 PMAQI
18th Jul 2026803 PMAQI
18th Jul 2026624 PMAQI
18th Jul 2026525 PMAQI
18th Jul 2026586 PMAQI
18th Jul 2026427 PMAQI
18th Jul 2026248 PMAQI
18th Jul 2026209 PMAQI
18th Jul 20262410 PMAQI
18th Jul 20262011 PMAQI
19th Jul 20261612 AMAQI
19th Jul 2026141 AMAQI
19th Jul 2026462 AMAQI
19th Jul 2026543 AMAQI
19th Jul 2026494 AMAQI

16°C13/20°C

19th Jul 2026585 AMAQI
19th Jul 2026566 AMAQI
19th Jul 2026567 AMAQI
19th Jul 2026428 AMAQI
19th Jul 2026289 AMAQI
19th Jul 20262510 AMAQI
19th Jul 20262611 AMAQI
19th Jul 20262212 PMAQI
19th Jul 2026261 PMAQI
19th Jul 2026262 PMAQI
19th Jul 2026253 PMAQI
19th Jul 2026234 PMAQI
19th Jul 2026265 PMAQI
19th Jul 2026266 PMAQI
19th Jul 2026247 PMAQI
19th Jul 2026208 PMAQI
19th Jul 2026209 PMAQI
19th Jul 20261910 PMAQI
19th Jul 20262011 PMAQI
20th Jul 20262312 AMAQI
20th Jul 2026241 AMAQI
20th Jul 2026222 AMAQI
20th Jul 2026233 AMAQI
20th Jul 2026244 AMAQI

17°C13/23°C

20th Jul 2026265 AMAQI
20th Jul 2026286 AMAQI
20th Jul 2026257 AMAQI
20th Jul 2026268 AMAQI
20th Jul 2026429 AMAQI
20th Jul 20265010 AMAQI
20th Jul 20265511 AMAQI
20th Jul 20264812 PMAQI
20th Jul 2026501 PMAQI
20th Jul 2026502 PMAQI
20th Jul 2026503 PMAQI
20th Jul 2026504 PMAQI
20th Jul 2026405 PMAQI
20th Jul 2026466 PMAQI
20th Jul 2026467 PMAQI
20th Jul 2026469 PMAQI
20th Jul 20265010 PMAQI
20th Jul 20265011 PMAQI
21st Jul 20265012 AMAQI
21st Jul 2026481 AMAQI
21st Jul 2026502 AMAQI
21st Jul 2026463 AMAQI
21st Jul 2026464 AMAQI

21°C12/29°C

21st Jul 2026465 AMAQI
21st Jul 2026486 AMAQI
21st Jul 2026447 AMAQI
21st Jul 2026488 AMAQI
21st Jul 2026409 AMAQI
21st Jul 20264210 AMAQI
21st Jul 20264411 AMAQI
21st Jul 20264412 PMAQI
21st Jul 2026521 PMAQI
21st Jul 2026542 PMAQI
21st Jul 2026483 PMAQI
21st Jul 2026524 PMAQI
21st Jul 2026545 PMAQI
21st Jul 2026586 PMAQI
21st Jul 2026537 PMAQI
21st Jul 2026538 PMAQI
21st Jul 2026519 PMAQI
21st Jul 20265010 PMAQI
21st Jul 20265311 PMAQI
22nd Jul 20265012 AMAQI
22nd Jul 2026441 AMAQI
22nd Jul 2026462 AMAQI
22nd Jul 2026483 AMAQI
22nd Jul 2026514 AMAQI

22°C14/29°C

22nd Jul 2026515 AMAQI
22nd Jul 2026526 AMAQI
22nd Jul 2026537 AMAQI
22nd Jul 2026528 AMAQI
22nd Jul 2026539 AMAQI
22nd Jul 20265010 AMAQI
22nd Jul 20265111 AMAQI
22nd Jul 20265212 PMAQI
22nd Jul 2026521 PMAQI
22nd Jul 2026532 PMAQI
22nd Jul 2026553 PMAQI
22nd Jul 2026544 PMAQI
22nd Jul 2026535 PMAQI
22nd Jul 2026536 PMAQI
22nd Jul 2026517 PMAQI
22nd Jul 2026538 PMAQI
22nd Jul 2026539 PMAQI
22nd Jul 20265210 PMAQI
22nd Jul 20265311 PMAQI
23rd Jul 20264812 AMAQI
23rd Jul 2026461 AMAQI
23rd Jul 2026422 AMAQI
23rd Jul 2026273 AMAQI
23rd Jul 2026354 AMAQI

22°C14/34°C

23rd Jul 2026365 AMAQI
23rd Jul 2026466 AMAQI
23rd Jul 2026607 AMAQI
23rd Jul 2026468 AMAQI
23rd Jul 2026369 AMAQI
23rd Jul 20264610 AMAQI
23rd Jul 20265211 AMAQI
23rd Jul 20265012 PMAQI
23rd Jul 2026501 PMAQI
23rd Jul 2026512 PMAQI
23rd Jul 2026563 PMAQI
23rd Jul 2026564 PMAQI
23rd Jul 2026295 PMAQI
23rd Jul 2026276 PMAQI
23rd Jul 2026347 PMAQI
23rd Jul 2026428 PMAQI
23rd Jul 2026449 PMAQI
23rd Jul 20264210 PMAQI
23rd Jul 20261811 PMAQI
24th Jul 20262012 AMAQI
24th Jul 2026241 AMAQI
24th Jul 2026342 AMAQI
24th Jul 2026503 AMAQI
24th Jul 2026464 AMAQI

18°C15/22°C

24th Jul 2026425 AMAQI
24th Jul 2026426 AMAQI
24th Jul 2026227 AMAQI
24th Jul 2026248 AMAQI
24th Jul 2026249 AMAQI
24th Jul 20262410 AMAQI
24th Jul 20262211 AMAQI
24th Jul 20262012 PMAQI
24th Jul 2026251 PMAQI
24th Jul 2026462 PMAQI
24th Jul 2026423 PMAQI
24th Jul 2026544 PMAQI
24th Jul 2026505 PMAQI
24th Jul 2026526 PMAQI
24th Jul 2026507 PMAQI
24th Jul 2026468 PMAQI
24th Jul 2026329 PMAQI
24th Jul 20261810 PMAQI
24th Jul 20261411 PMAQI
25th Jul 20261412 AMAQI
25th Jul 2026301 AMAQI
25th Jul 2026642 AMAQI
25th Jul 2026503 AMAQI
25th Jul 2026184 AMAQI

17°C14/21°C

25th Jul 2026185 AMAQI
25th Jul 2026186 AMAQI
25th Jul 2026187 AMAQI
25th Jul 2026168 AMAQI
25th Jul 2026169 AMAQI
25th Jul 20265410 AMAQI
25th Jul 20266811 AMAQI
25th Jul 20266412 PMAQI
25th Jul 2026531 PMAQI
25th Jul 2026632 PMAQI
25th Jul 2026623 PMAQI
25th Jul 2026554 PMAQI
25th Jul 2026525 PMAQI
25th Jul 2026446 PMAQI
25th Jul 2026207 PMAQI
25th Jul 2026588 PMAQI
25th Jul 2026389 PMAQI
25th Jul 20261610 PMAQI
25th Jul 20261811 PMAQI
26th Jul 20261612 AMAQI
26th Jul 2026171 AMAQI
26th Jul 2026182 AMAQI
26th Jul 2026183 AMAQI
26th Jul 2026244 AMAQI

17°C15/19°C

26th Jul 2026195 AMAQI
26th Jul 2026466 AMAQI
26th Jul 2026347 AMAQI
26th Jul 2026188 AMAQI
26th Jul 2026409 AMAQI
26th Jul 20267610 AMAQI
26th Jul 20266411 AMAQI
26th Jul 20265912 PMAQI
26th Jul 2026421 PMAQI
26th Jul 2026572 PMAQI
26th Jul 2026603 PMAQI
26th Jul 2026494 PMAQI
26th Jul 2026585 PMAQI
26th Jul 2026566 PMAQI
26th Jul 2026467 PMAQI
26th Jul 2026468 PMAQI
26th Jul 2026629 PMAQI
26th Jul 20265110 PMAQI
26th Jul 20265911 PMAQI
27th Jul 20266612 AMAQI
27th Jul 2026581 AMAQI
27th Jul 2026212 AMAQI
27th Jul 2026323 AMAQI
27th Jul 2026244 AMAQI

17°C15/19°C

27th Jul 2026205 AMAQI
27th Jul 2026216 AMAQI
27th Jul 2026207 AMAQI
27th Jul 2026228 AMAQI
27th Jul 2026239 AMAQI
27th Jul 20262210 AMAQI
27th Jul 20262111 AMAQI
27th Jul 20262012 PMAQI
27th Jul 2026181 PMAQI
27th Jul 2026182 PMAQI
27th Jul 2026193 PMAQI
27th Jul 2026194 PMAQI
27th Jul 2026485 PMAQI
27th Jul 2026236 PMAQI
27th Jul 2026227 PMAQI
27th Jul 2026208 PMAQI
27th Jul 2026199 PMAQI
27th Jul 20261810 PMAQI
27th Jul 20262011 PMAQI
28th Jul 20261612 AMAQI
28th Jul 2026181 AMAQI
28th Jul 2026182 AMAQI
28th Jul 2026203 AMAQI
28th Jul 2026204 AMAQI

17°C13/21°C

28th Jul 2026225 AMAQI
28th Jul 2026256 AMAQI
28th Jul 2026247 AMAQI
28th Jul 2026458 AMAQI
28th Jul 2026799 AMAQI
28th Jul 20267210 AMAQI
28th Jul 20262211 AMAQI
28th Jul 20262312 PMAQI
28th Jul 2026201 PMAQI
28th Jul 2026422 PMAQI
28th Jul 2026523 PMAQI
28th Jul 2026354 PMAQI
28th Jul 2026215 PMAQI
28th Jul 2026286 PMAQI
28th Jul 2026427 PMAQI
28th Jul 2026588 PMAQI
28th Jul 2026559 PMAQI
28th Jul 20261810 PMAQI
28th Jul 20261811 PMAQI
29th Jul 20261812 AMAQI
29th Jul 2026181 AMAQI
29th Jul 2026222 AMAQI
29th Jul 2026213 AMAQI
29th Jul 2026234 AMAQI

17°C14/20°C

29th Jul 2026215 AMAQI
29th Jul 2026176 AMAQI
29th Jul 2026207 AMAQI
29th Jul 2026168 AMAQI
29th Jul 2026669 AMAQI
29th Jul 20263810 AMAQI
29th Jul 20262011 AMAQI
29th Jul 20265212 PMAQI
29th Jul 2026601 PMAQI
29th Jul 2026562 PMAQI
29th Jul 2026543 PMAQI
29th Jul 2026294 PMAQI
29th Jul 2026605 PMAQI
29th Jul 2026606 PMAQI
29th Jul 2026587 PMAQI
29th Jul 2026368 PMAQI
29th Jul 2026569 PMAQI
29th Jul 20261810 PMAQI
29th Jul 20261811 PMAQI
30th Jul 20265012 AMAQI
30th Jul 2026501 AMAQI
30th Jul 2026202 AMAQI
30th Jul 2026223 AMAQI
30th Jul 2026204 AMAQI

16°C10/22°C

30th Jul 2026225 AMAQI
30th Jul 2026246 AMAQI
30th Jul 2026467 AMAQI
30th Jul 2026208 AMAQI
30th Jul 2026199 AMAQI
30th Jul 20262010 AMAQI
30th Jul 20262011 AMAQI
30th Jul 20262012 PMAQI
30th Jul 2026501 PMAQI
30th Jul 2026462 PMAQI
30th Jul 2026203 PMAQI
30th Jul 2026464 PMAQI
30th Jul 2026325 PMAQI
30th Jul 2026206 PMAQI
30th Jul 2026197 PMAQI
30th Jul 2026198 PMAQI
30th Jul 2026169 PMAQI
30th Jul 20261610 PMAQI
30th Jul 20261811 PMAQI
31st Jul 20262012 AMAQI
31st Jul 2026201 AMAQI
31st Jul 2026222 AMAQI
31st Jul 2026503 AMAQI
31st Jul 2026464 AMAQI

16°C10/22°C

31st Jul 2026205 AMAQI
31st Jul 2026196 AMAQI
31st Jul 2026197 AMAQI
31st Jul 2026508 AMAQI
31st Jul 2026209 AMAQI
31st Jul 20265410 AMAQI
31st Jul 20266311 AMAQI
31st Jul 20267212 PMAQI
31st Jul 2026441 PMAQI
31st Jul 2026532 PMAQI
31st Jul 2026583 PMAQI
31st Jul 2026584 PMAQI
31st Jul 2026625 PMAQI
31st Jul 2026606 PMAQI
31st Jul 2026657 PMAQI
31st Jul 2026568 PMAQI
31st Jul 2026529 PMAQI
31st Jul 20265610 PMAQI
31st Jul 20265311 PMAQI
1st Aug 20265612 AMAQI
1st Aug 2026601 AMAQI
1st Aug 2026632 AMAQI
1st Aug 2026563 AMAQI
1st Aug 2026464 AMAQI

18°C11/26°C

1st Aug 2026225 AMAQI
1st Aug 2026206 AMAQI
1st Aug 2026237 AMAQI
1st Aug 2026208 AMAQI
1st Aug 2026219 AMAQI
1st Aug 20262110 AMAQI
1st Aug 20262011 AMAQI
1st Aug 20262012 PMAQI
1st Aug 2026201 PMAQI
1st Aug 2026422 PMAQI
1st Aug 2026193 PMAQI
1st Aug 2026184 PMAQI
1st Aug 2026215 PMAQI
1st Aug 2026326 PMAQI
1st Aug 2026197 PMAQI
1st Aug 2026198 PMAQI
1st Aug 2026159 PMAQI
1st Aug 20261810 PMAQI
1st Aug 20261811 PMAQI
2nd Aug 20261812 AMAQI
2nd Aug 2026181 AMAQI
2nd Aug 2026182 AMAQI
2nd Aug 2026503 AMAQI
2nd Aug 2026424 AMAQI

17°C15/19°C

2nd Aug 2026225 AMAQI
2nd Aug 2026196 AMAQI
2nd Aug 2026207 AMAQI
2nd Aug 2026198 AMAQI
2nd Aug 2026189 AMAQI
2nd Aug 20262010 AMAQI
2nd Aug 20262211 AMAQI
2nd Aug 20264612 PMAQI
2nd Aug 2026181 PMAQI
2nd Aug 2026162 PMAQI
2nd Aug 2026173 PMAQI
2nd Aug 2026224 PMAQI
2nd Aug 2026225 PMAQI
2nd Aug 2026256 PMAQI
2nd Aug 2026207 PMAQI
2nd Aug 2026198 PMAQI
2nd Aug 2026189 PMAQI
2nd Aug 20261910 PMAQI
2nd Aug 20261911 PMAQI
3rd Aug 20261812 AMAQI
3rd Aug 2026211 AMAQI
3rd Aug 2026222 AMAQI
3rd Aug 2026233 AMAQI
3rd Aug 2026254 AMAQI

16°C11/22°C

3rd Aug 2026205 AMAQI
3rd Aug 2026216 AMAQI
3rd Aug 2026227 AMAQI
3rd Aug 2026238 AMAQI
3rd Aug 2026529 AMAQI
3rd Aug 20265510 AMAQI
3rd Aug 20266811 AMAQI
3rd Aug 20266412 PMAQI
3rd Aug 2026631 PMAQI
3rd Aug 2026462 PMAQI
3rd Aug 2026543 PMAQI
3rd Aug 2026604 PMAQI
3rd Aug 2026535 PMAQI
3rd Aug 2026576 PMAQI
3rd Aug 2026667 PMAQI
3rd Aug 2026668 PMAQI
3rd Aug 2026669 PMAQI
3rd Aug 20266510 PMAQI
3rd Aug 20267211 PMAQI
4th Aug 20266712 AMAQI
4th Aug 2026651 AMAQI
4th Aug 2026622 AMAQI
4th Aug 2026573 AMAQI
4th Aug 2026594 AMAQI

18°C10/26°C

4th Aug 2026565 AMAQI
4th Aug 2026546 AMAQI
4th Aug 2026557 AMAQI
4th Aug 2026568 AMAQI
4th Aug 2026509 AMAQI
4th Aug 20265110 AMAQI
4th Aug 20264611 AMAQI
4th Aug 20264612 PMAQI
4th Aug 2026511 PMAQI
4th Aug 2026522 PMAQI
4th Aug 2026553 PMAQI
4th Aug 2026534 PMAQI
4th Aug 2026565 PMAQI
4th Aug 2026746 PMAQI
4th Aug 2026817 PMAQI
4th Aug 2026708 PMAQI
4th Aug 2026669 PMAQI
4th Aug 20267110 PMAQI
4th Aug 20267011 PMAQI
5th Aug 20266412 AMAQI
5th Aug 2026691 AMAQI
5th Aug 2026682 AMAQI
5th Aug 2026733 AMAQI
5th Aug 2026704 AMAQI

21°C13/30°C

5th Aug 2026765 AMAQI
5th Aug 2026716 AMAQI
5th Aug 2026727 AMAQI
5th Aug 2026748 AMAQI
5th Aug 2026609 AMAQI
5th Aug 20266510 AMAQI
5th Aug 20266411 AMAQI
5th Aug 20266412 PMAQI
5th Aug 2026641 PMAQI
5th Aug 2026692 PMAQI
5th Aug 2026733 PMAQI
5th Aug 2026764 PMAQI
5th Aug 2026705 PMAQI
5th Aug 2026716 PMAQI
5th Aug 2026747 PMAQI
5th Aug 2026698 PMAQI
5th Aug 2026639 PMAQI
5th Aug 20266710 PMAQI
5th Aug 20266511 PMAQI
6th Aug 20266212 AMAQI
6th Aug 2026641 AMAQI
6th Aug 2026592 AMAQI
6th Aug 2026693 AMAQI
6th Aug 2026714 AMAQI

21°C13/31°C

6th Aug 2026725 AMAQI
6th Aug 2026726 AMAQI
6th Aug 2026667 AMAQI
6th Aug 2026718 AMAQI
6th Aug 2026549 AMAQI
6th Aug 20265510 AMAQI
6th Aug 20265811 AMAQI
6th Aug 20265612 PMAQI
6th Aug 2026651 PMAQI
6th Aug 2026712 PMAQI
6th Aug 2026783 PMAQI
6th Aug 2026724 PMAQI
6th Aug 2026785 PMAQI
6th Aug 2026736 PMAQI
6th Aug 2026717 PMAQI
6th Aug 2026688 PMAQI
6th Aug 2026649 PMAQI
6th Aug 20266610 PMAQI
6th Aug 20265811 PMAQI
7th Aug 20265412 AMAQI
7th Aug 2026541 AMAQI
7th Aug 2026582 AMAQI
7th Aug 2026583 AMAQI
7th Aug 2026584 AMAQI

18°C14/24°C

7th Aug 2026585 AMAQI
7th Aug 2026556 AMAQI
7th Aug 2026537 AMAQI
7th Aug 2026508 AMAQI
7th Aug 2026449 AMAQI
7th Aug 20264610 AMAQI
7th Aug 20264611 AMAQI
7th Aug 20264612 PMAQI
7th Aug 2026461 PMAQI
7th Aug 2026502 PMAQI
7th Aug 2026513 PMAQI
7th Aug 2026534 PMAQI
7th Aug 2026535 PMAQI
7th Aug 2026526 PMAQI
7th Aug 2026537 PMAQI
7th Aug 2026538 PMAQI
7th Aug 2026519 PMAQI
7th Aug 20265010 PMAQI
7th Aug 20265311 PMAQI
8th Aug 20265812 AMAQI
8th Aug 2026531 AMAQI
8th Aug 2026522 AMAQI
8th Aug 2026423 AMAQI
8th Aug 2026504 AMAQI

17°C14/21°C

8th Aug 2026485 AMAQI
8th Aug 2026506 AMAQI
8th Aug 2026507 AMAQI
8th Aug 2026488 AMAQI
8th Aug 2026469 AMAQI
8th Aug 20264610 AMAQI
8th Aug 20264611 AMAQI
8th Aug 20264612 PMAQI
8th Aug 2026501 PMAQI
8th Aug 2026462 PMAQI
8th Aug 2026443 PMAQI
8th Aug 2026484 PMAQI
8th Aug 2026445 PMAQI
8th Aug 2026386 PMAQI
8th Aug 2026447 PMAQI
8th Aug 2026468 PMAQI
8th Aug 2026499 PMAQI
8th Aug 20266010 PMAQI
8th Aug 20265811 PMAQI
9th Aug 20265812 AMAQI
9th Aug 2026461 AMAQI
9th Aug 2026212 AMAQI
9th Aug 2026463 AMAQI
9th Aug 2026504 AMAQI

17°C14/23°C

9th Aug 2026225 AMAQI
9th Aug 2026226 AMAQI
9th Aug 2026247 AMAQI
9th Aug 2026248 AMAQI
9th Aug 2026259 AMAQI
9th Aug 20262510 AMAQI
9th Aug 20263811 AMAQI
9th Aug 20265212 PMAQI
9th Aug 2026581 PMAQI
9th Aug 2026692 PMAQI
9th Aug 20261103 PMAQI
9th Aug 2026574 PMAQI
9th Aug 2026235 PMAQI
9th Aug 2026696 PMAQI
9th Aug 20261187 PMAQI
9th Aug 20261158 PMAQI
9th Aug 2026629 PMAQI
9th Aug 20266210 PMAQI
9th Aug 20266511 PMAQI
10th Aug 20265512 AMAQI
10th Aug 2026531 AMAQI
10th Aug 2026212 AMAQI
10th Aug 2026423 AMAQI
10th Aug 2026244 AMAQI

16°C13/20°C

10th Aug 2026285 AMAQI
5 AM
10th Aug 2026246 AMAQI
10th Aug 2026227 AMAQI
10th Aug 2026208 AMAQI
10th Aug 2026249 AMAQI
10th Aug 20264610 AMAQI
10th Aug 20264211 AMAQI
10th Aug 20265212 PMAQI
12 PM
10th Aug 2026561 PMAQI
10th Aug 2026562 PMAQI
10th Aug 2026743 PMAQI
10th Aug 2026704 PMAQI
10th Aug 2026425 PMAQI
10th Aug 2026546 PMAQI
10th Aug 2026257 PMAQI
10th Aug 2026228 PMAQI
8 PM
10th Aug 2026209 PMAQI
10th Aug 20262010 PMAQI
10th Aug 20261811 PMAQI
12 AM
4 AM

16°C14/21°C

Day time
Avg. Highest Time
2 PM - 3 PM

49AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
5 AM - 9 AM

36AQI

5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 2 PM to 3 PM (Avg. 49), while the lowest AQI was between 5 AM to 9 AM (Avg. 36).
Night time
Avg. Highest Time
3 AM

40AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
10 PM - 11 PM

36AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 3 AM to 3 AM (Avg. 40), while the lowest AQI was between 10 PM to 11 PM (Avg. 36).

2026 Days Vs Air Quality

4Th St, Aberdeen, Washington, United States

2026

94%

204

6%

14

Total number of days with different AQI categories in last 222 days in 2026 (143 days remaining)

Good
204 Days
Moderate
14 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 94%

Health Risk Level:

Very Low

In 2026, 94% of 222 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

4Th St, Aberdeen, 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
26AQI (US)
2nd January 2026
26AQI (US)
3rd January 2026
10AQI (US)
4th January 2026
10AQI (US)
5th January 2026
17AQI (US)
6th January 2026
13AQI (US)
7th January 2026
11AQI (US)
8th January 2026
12AQI (US)
9th January 2026
11AQI (US)
10th January 2026
16AQI (US)
11th January 2026
11AQI (US)
12th January 2026
12AQI (US)
13th January 2026
16AQI (US)
14th January 2026
12AQI (US)
15th January 2026
12AQI (US)
16th January 2026
13AQI (US)
17th January 2026
18AQI (US)
18th January 2026
20AQI (US)
19th January 2026
24AQI (US)
20th January 2026
25AQI (US)
21st January 2026
26AQI (US)
22nd January 2026
48AQI (US)
23rd January 2026
53AQI (US)
24th January 2026
49AQI (US)
25th January 2026
46AQI (US)
26th January 2026
46AQI (US)
27th January 2026
44AQI (US)
28th January 2026
46AQI (US)
29th January 2026
52AQI (US)
30th January 2026
47AQI (US)
31st January 2026
44AQI (US)
1st February 2026
49AQI (US)
2nd February 2026
50AQI (US)
3rd February 2026
49AQI (US)
4th February 2026
47AQI (US)
5th February 2026
47AQI (US)
6th February 2026
40AQI (US)
7th February 2026
40AQI (US)
8th February 2026
46AQI (US)
9th February 2026
46AQI (US)
10th February 2026
47AQI (US)
11th February 2026
47AQI (US)
12th February 2026
47AQI (US)
13th February 2026
54AQI (US)
14th February 2026
49AQI (US)
15th February 2026
40AQI (US)
16th February 2026
44AQI (US)
17th February 2026
46AQI (US)
18th February 2026
40AQI (US)
19th February 2026
42AQI (US)
20th February 2026
42AQI (US)
21st February 2026
38AQI (US)
22nd February 2026
38AQI (US)
23rd February 2026
40AQI (US)
24th February 2026
42AQI (US)
25th February 2026
40AQI (US)
26th February 2026
35AQI (US)
27th February 2026
33AQI (US)
28th February 2026
37AQI (US)
1st March 2026
41AQI (US)
2nd March 2026
53AQI (US)
3rd March 2026
46AQI (US)
4th March 2026
46AQI (US)
5th March 2026
43AQI (US)
6th March 2026
38AQI (US)
7th March 2026
42AQI (US)
8th March 2026
41AQI (US)
9th March 2026
40AQI (US)
10th March 2026
34AQI (US)
11th March 2026
41AQI (US)
12th March 2026
41AQI (US)
13th March 2026
39AQI (US)
14th March 2026
36AQI (US)
15th March 2026
36AQI (US)
16th March 2026
36AQI (US)
17th March 2026
34AQI (US)
18th March 2026
32AQI (US)
19th March 2026
32AQI (US)
20th March 2026
38AQI (US)
21st March 2026
36AQI (US)
22nd March 2026
36AQI (US)
23rd March 2026
40AQI (US)
24th March 2026
40AQI (US)
25th March 2026
35AQI (US)
26th March 2026
34AQI (US)
27th March 2026
34AQI (US)
28th March 2026
35AQI (US)
29th March 2026
30AQI (US)
30th March 2026
27AQI (US)
31st March 2026
26AQI (US)
1st April 2026
33AQI (US)
2nd April 2026
35AQI (US)
3rd April 2026
28AQI (US)
4th April 2026
28AQI (US)
5th April 2026
28AQI (US)
6th April 2026
27AQI (US)
7th April 2026
28AQI (US)
8th April 2026
30AQI (US)
9th April 2026
28AQI (US)
10th April 2026
33AQI (US)
11th April 2026
34AQI (US)
12th April 2026
30AQI (US)
13th April 2026
34AQI (US)
14th April 2026
36AQI (US)
15th April 2026
33AQI (US)
16th April 2026
32AQI (US)
17th April 2026
18th April 2026
33AQI (US)
19th April 2026
34AQI (US)
20th April 2026
30AQI (US)
21st April 2026
29AQI (US)
22nd April 2026
23rd April 2026
27AQI (US)
24th April 2026
30AQI (US)
25th April 2026
33AQI (US)
26th April 2026
33AQI (US)
27th April 2026
28AQI (US)
28th April 2026
24AQI (US)
29th April 2026
23AQI (US)
30th April 2026
26AQI (US)
1st May 2026
27AQI (US)
2nd May 2026
26AQI (US)
3rd May 2026
22AQI (US)
4th May 2026
29AQI (US)
5th May 2026
32AQI (US)
6th May 2026
31AQI (US)
7th May 2026
28AQI (US)
8th May 2026
28AQI (US)
9th May 2026
10th May 2026
34AQI (US)
11th May 2026
30AQI (US)
12th May 2026
29AQI (US)
13th May 2026
30AQI (US)
14th May 2026
26AQI (US)
15th May 2026
43AQI (US)
16th May 2026
51AQI (US)
17th May 2026
57AQI (US)
18th May 2026
51AQI (US)
19th May 2026
53AQI (US)
20th May 2026
42AQI (US)
21st May 2026
38AQI (US)
22nd May 2026
48AQI (US)
23rd May 2026
47AQI (US)
24th May 2026
40AQI (US)
25th May 2026
41AQI (US)
26th May 2026
27AQI (US)
27th May 2026
28AQI (US)
28th May 2026
27AQI (US)
29th May 2026
26AQI (US)
30th May 2026
28AQI (US)
31st May 2026
30AQI (US)
1st June 2026
31AQI (US)
2nd June 2026
31AQI (US)
3rd June 2026
29AQI (US)
4th June 2026
26AQI (US)
5th June 2026
27AQI (US)
6th June 2026
25AQI (US)
7th June 2026
24AQI (US)
8th June 2026
26AQI (US)
9th June 2026
26AQI (US)
10th June 2026
27AQI (US)
11th June 2026
28AQI (US)
12th June 2026
27AQI (US)
13th June 2026
25AQI (US)
14th June 2026
24AQI (US)
15th June 2026
26AQI (US)
16th June 2026
28AQI (US)
17th June 2026
28AQI (US)
18th June 2026
27AQI (US)
19th June 2026
25AQI (US)
20th June 2026
24AQI (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
29AQI (US)
28th June 2026
27AQI (US)
29th June 2026
25AQI (US)
30th June 2026
27AQI (US)
1st July 2026
26AQI (US)
2nd July 2026
27AQI (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
32AQI (US)
11th July 2026
30AQI (US)
12th July 2026
29AQI (US)
13th July 2026
30AQI (US)
14th July 2026
30AQI (US)
15th July 2026
28AQI (US)
16th July 2026
29AQI (US)
17th July 2026
43AQI (US)
18th July 2026
35AQI (US)
19th July 2026
31AQI (US)
20th July 2026
39AQI (US)
21st July 2026
49AQI (US)
22nd July 2026
51AQI (US)
23rd July 2026
42AQI (US)
24th July 2026
34AQI (US)
25th July 2026
39AQI (US)
26th July 2026
43AQI (US)
27th July 2026
26AQI (US)
28th July 2026
33AQI (US)
29th July 2026
36AQI (US)
30th July 2026
27AQI (US)
31st July 2026
46AQI (US)
1st August 2026
29AQI (US)
2nd August 2026
23AQI (US)
3rd August 2026
46AQI (US)
4th August 2026
59AQI (US)
5th August 2026
69AQI (US)
6th August 2026
66AQI (US)
7th August 2026
52AQI (US)
8th August 2026
48AQI (US)
9th August 2026
53AQI (US)
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

26AQI (US)

43AQI (US)

37AQI (US)

30AQI (US)

35AQI (US)

26AQI (US)

33AQI (US)

49AQI (US)

No. of days

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

202634AQI (US)

29
2
27
1
30
1
28
26
4
30
30
1
4
5
204
14

Highest AQI (US) recorded in

August

49AQI (US)

Lowest AQI (US) recorded in

June

26AQI (US)

202521AQI (US)

31
28
31
30
31
30
31
31
30
30
1
30
31
364
1

Highest AQI (US) recorded in

October

33AQI (US)

Lowest AQI (US) recorded in

May

14AQI (US)

202415AQI (US)

30
29
31
30
31
29
31
31
30
31
28
2
31
362
2

Highest AQI (US) recorded in

December

25AQI (US)

Lowest AQI (US) recorded in

May

11AQI (US)

202318AQI (US)

2
16
31
30
30
1
26
5
28
1
31
28
1
31
253
7
1

Highest AQI (US) recorded in

August

25AQI (US)

Lowest AQI (US) recorded in

April

11AQI (US)

202220AQI (US)

29
21
31
25
31
30
22
1
29
24
7
29
1
31
303
8

Highest AQI (US) recorded in

October

33AQI (US)

Lowest AQI (US) recorded in

May

11AQI (US)

202117AQI (US)

29
28
31
26
2
8
12
6
6
10
24
23
26
229
2

Highest AQI (US) recorded in

January

22AQI (US)

Lowest AQI (US) recorded in

December

9AQI (US)

202044AQI (US)

1
14
5
2
2
3
2
13
31
61
5
2
2
3

Highest AQI (US) recorded in

September

82AQI (US)

Lowest AQI (US) recorded in

August

12AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2020(Avg.)
44AQI (US)
Least Polluted Year Recorded
2024(Avg.)
15AQI (US)

4Th St's annual 2026 AQI (US) (34) shows an average percentage change of 70.7% (worsened AQI (US)) compared to previous years: 2020 (44), 2021 (17), 2022 (20), 2023 (18), 2024 (15), 2025 (21).