Country Background

Port Angeles, 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+

September Air Quality Analysis

Port Angeles, Washington, United States

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
11th Sep 2022
94AQI
Lowest AQI recorded on
10th Sep 2021
10AQI


Same Day Analysis (6th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 34 of Good air quality, showing improvement over 2024 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 6th Sep - 7th Sep 2025

Port Angeles, Washington, United States

AQI
Day
Night
.

6 AM6th Sep 2025

8 PM

5 AM7th Sep 2025

Day time
Avg. Highest Time
6AM6th Sep

33AQI

Avg. Lowest Time
11AM6th Sep

27AQI

Night time
Avg. Highest Time
8PM6th Sep

30AQI

Avg. Lowest Time
5AM7th Sep

24AQI

In the last 24 hours,

Port Angeles's AQI reached its highest point of 33 at 6 AM during the Day, while the lowest point, 24, was recorded at 5 AM during the Night between 6th Sep and 7th Sep 2025.

Day & Night AQI Trend : Aug - Sep 2025

Port Angeles, Washington, United States

AugSep
08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th
Day
Night
8th Aug 2025186 AMAQI
8th Aug 2025177 AMAQI
8th Aug 2025188 AMAQI
8th Aug 2025189 AMAQI
8th Aug 20251810 AMAQI
8th Aug 20251811 AMAQI
8th Aug 20252012 PMAQI
8th Aug 2025201 PMAQI
8th Aug 2025202 PMAQI
8th Aug 2025203 PMAQI
8th Aug 2025204 PMAQI
8th Aug 2025205 PMAQI
8th Aug 2025196 PMAQI
8th Aug 2025207 PMAQI
8th Aug 2025198 PMAQI
8th Aug 2025209 PMAQI
8th Aug 20252010 PMAQI
8th Aug 20252011 PMAQI
9th Aug 20252012 AMAQI
9th Aug 2025191 AMAQI
9th Aug 2025192 AMAQI
9th Aug 2025193 AMAQI
9th Aug 2025204 AMAQI
9th Aug 2025185 AMAQI

15°C11/18°C

9th Aug 2025196 AMAQI
9th Aug 2025197 AMAQI
9th Aug 2025208 AMAQI
9th Aug 2025209 AMAQI
9th Aug 20252110 AMAQI
9th Aug 20252011 AMAQI
9th Aug 20252012 PMAQI
9th Aug 2025201 PMAQI
9th Aug 2025202 PMAQI
9th Aug 2025213 PMAQI
9th Aug 2025214 PMAQI
9th Aug 2025205 PMAQI
9th Aug 2025206 PMAQI
9th Aug 2025197 PMAQI
9th Aug 2025218 PMAQI
9th Aug 2025229 PMAQI
9th Aug 20252310 PMAQI
9th Aug 20252211 PMAQI
10th Aug 20252112 AMAQI
10th Aug 2025211 AMAQI
10th Aug 2025202 AMAQI
10th Aug 2025213 AMAQI
10th Aug 2025224 AMAQI
10th Aug 2025225 AMAQI

17°C13/21°C

10th Aug 2025226 AMAQI
10th Aug 2025237 AMAQI
10th Aug 2025248 AMAQI
10th Aug 2025249 AMAQI
10th Aug 20252410 AMAQI
10th Aug 20252411 AMAQI
10th Aug 20252612 PMAQI
10th Aug 2025261 PMAQI
10th Aug 2025262 PMAQI
10th Aug 2025273 PMAQI
10th Aug 2025254 PMAQI
10th Aug 2025265 PMAQI
10th Aug 2025266 PMAQI
10th Aug 2025247 PMAQI
10th Aug 2025258 PMAQI
10th Aug 2025259 PMAQI
10th Aug 20252510 PMAQI
10th Aug 20252611 PMAQI
11th Aug 20252612 AMAQI
11th Aug 2025271 AMAQI
11th Aug 2025272 AMAQI
11th Aug 2025293 AMAQI
11th Aug 2025294 AMAQI
11th Aug 2025285 AMAQI

21°C16/27°C

11th Aug 2025306 AMAQI
11th Aug 2025297 AMAQI
11th Aug 2025298 AMAQI
11th Aug 2025269 AMAQI
11th Aug 20252810 AMAQI
11th Aug 20252711 AMAQI
11th Aug 20252612 PMAQI
11th Aug 2025261 PMAQI
11th Aug 2025262 PMAQI
11th Aug 2025253 PMAQI
11th Aug 2025244 PMAQI
11th Aug 2025245 PMAQI
11th Aug 2025246 PMAQI
11th Aug 2025267 PMAQI
11th Aug 2025248 PMAQI
11th Aug 2025269 PMAQI
11th Aug 20252510 PMAQI
11th Aug 20253011 PMAQI
12th Aug 20253012 AMAQI
12th Aug 2025291 AMAQI
12th Aug 2025272 AMAQI
12th Aug 2025263 AMAQI
12th Aug 2025254 AMAQI
12th Aug 2025265 AMAQI

20°C15/26°C

12th Aug 2025266 AMAQI
12th Aug 2025267 AMAQI
12th Aug 2025248 AMAQI
12th Aug 2025249 AMAQI
12th Aug 20252410 AMAQI
12th Aug 20252611 AMAQI
12th Aug 20252512 PMAQI
12th Aug 2025271 PMAQI
12th Aug 2025262 PMAQI
12th Aug 2025243 PMAQI
12th Aug 2025264 PMAQI
12th Aug 2025245 PMAQI
12th Aug 2025236 PMAQI
12th Aug 2025247 PMAQI
12th Aug 2025248 PMAQI
12th Aug 2025239 PMAQI
12th Aug 20252610 PMAQI
12th Aug 20252911 PMAQI
13th Aug 20253012 AMAQI
13th Aug 2025291 AMAQI
13th Aug 2025312 AMAQI
13th Aug 2025323 AMAQI
13th Aug 2025304 AMAQI
13th Aug 2025305 AMAQI

24°C19/28°C

13th Aug 2025296 AMAQI
13th Aug 2025287 AMAQI
13th Aug 2025308 AMAQI
13th Aug 2025309 AMAQI
13th Aug 20252910 AMAQI
13th Aug 20252811 AMAQI
13th Aug 20252612 PMAQI
13th Aug 2025251 PMAQI
13th Aug 2025222 PMAQI
13th Aug 2025223 PMAQI
13th Aug 2025224 PMAQI
13th Aug 2025215 PMAQI
13th Aug 2025206 PMAQI
13th Aug 2025277 PMAQI
13th Aug 2025228 PMAQI
13th Aug 2025199 PMAQI
13th Aug 20251810 PMAQI
13th Aug 20251611 PMAQI
14th Aug 20251912 AMAQI
14th Aug 2025201 AMAQI
14th Aug 2025212 AMAQI
14th Aug 2025203 AMAQI
14th Aug 2025224 AMAQI
14th Aug 2025205 AMAQI

18°C14/21°C

14th Aug 2025206 AMAQI
14th Aug 2025197 AMAQI
14th Aug 2025198 AMAQI
14th Aug 2025209 AMAQI
14th Aug 20252110 AMAQI
14th Aug 20252211 AMAQI
14th Aug 20252212 PMAQI
14th Aug 2025221 PMAQI
14th Aug 2025232 PMAQI
14th Aug 2025243 PMAQI
14th Aug 2025244 PMAQI
14th Aug 2025245 PMAQI
14th Aug 2025266 PMAQI
14th Aug 2025227 PMAQI
14th Aug 2025258 PMAQI
14th Aug 2025309 PMAQI
14th Aug 20252810 PMAQI
14th Aug 20252611 PMAQI
15th Aug 20252612 AMAQI
15th Aug 2025221 AMAQI
15th Aug 2025222 AMAQI
15th Aug 2025203 AMAQI
15th Aug 2025204 AMAQI
15th Aug 2025205 AMAQI

14°C11/17°C

15th Aug 2025206 AMAQI
15th Aug 2025187 AMAQI
15th Aug 2025228 AMAQI
15th Aug 2025269 AMAQI
15th Aug 20252510 AMAQI
15th Aug 20252611 AMAQI
15th Aug 20252612 PMAQI
15th Aug 2025181 PMAQI
15th Aug 2025132 PMAQI
15th Aug 2025123 PMAQI
15th Aug 2025124 PMAQI
15th Aug 2025135 PMAQI
15th Aug 2025126 PMAQI
15th Aug 2025247 PMAQI
15th Aug 2025178 PMAQI
15th Aug 2025129 PMAQI
15th Aug 20251210 PMAQI
15th Aug 20251111 PMAQI
16th Aug 20251112 AMAQI
16th Aug 2025101 AMAQI
16th Aug 2025112 AMAQI
16th Aug 2025103 AMAQI
16th Aug 202594 AMAQI
16th Aug 2025105 AMAQI

15°C13/18°C

16th Aug 2025106 AMAQI
16th Aug 2025137 AMAQI
16th Aug 2025148 AMAQI
16th Aug 2025159 AMAQI
16th Aug 20251510 AMAQI
16th Aug 20251711 AMAQI
16th Aug 20252012 PMAQI
16th Aug 2025191 PMAQI
16th Aug 2025182 PMAQI
16th Aug 2025203 PMAQI
16th Aug 2025204 PMAQI
16th Aug 2025185 PMAQI
16th Aug 2025196 PMAQI
16th Aug 2025187 PMAQI
16th Aug 2025188 PMAQI
16th Aug 2025199 PMAQI
16th Aug 20251910 PMAQI
16th Aug 20251811 PMAQI
17th Aug 20251912 AMAQI
17th Aug 2025191 AMAQI
17th Aug 2025202 AMAQI
17th Aug 2025183 AMAQI
17th Aug 2025194 AMAQI
17th Aug 2025195 AMAQI

16°C13/19°C

17th Aug 2025196 AMAQI
17th Aug 2025207 AMAQI
17th Aug 2025218 AMAQI
17th Aug 2025209 AMAQI
17th Aug 20252210 AMAQI
17th Aug 20251911 AMAQI
17th Aug 20252012 PMAQI
17th Aug 2025221 PMAQI
17th Aug 2025202 PMAQI
17th Aug 2025203 PMAQI
17th Aug 2025194 PMAQI
17th Aug 2025205 PMAQI
17th Aug 2025186 PMAQI
17th Aug 2025197 PMAQI
17th Aug 2025208 PMAQI
17th Aug 2025189 PMAQI
17th Aug 20251810 PMAQI
17th Aug 20252111 PMAQI
18th Aug 20252012 AMAQI
18th Aug 2025221 AMAQI
18th Aug 2025222 AMAQI
18th Aug 2025223 AMAQI
18th Aug 2025214 AMAQI
18th Aug 2025215 AMAQI

14°C12/16°C

18th Aug 2025206 AMAQI
18th Aug 2025207 AMAQI
18th Aug 2025208 AMAQI
18th Aug 2025209 AMAQI
18th Aug 20252010 AMAQI
18th Aug 20252211 AMAQI
18th Aug 20252112 PMAQI
18th Aug 2025231 PMAQI
18th Aug 2025232 PMAQI
18th Aug 2025223 PMAQI
18th Aug 2025224 PMAQI
18th Aug 2025225 PMAQI
18th Aug 2025226 PMAQI
18th Aug 2025217 PMAQI
18th Aug 2025228 PMAQI
18th Aug 2025229 PMAQI
18th Aug 20252210 PMAQI
18th Aug 20252211 PMAQI
19th Aug 20252212 AMAQI
19th Aug 2025221 AMAQI
19th Aug 2025242 AMAQI
19th Aug 2025233 AMAQI
19th Aug 2025234 AMAQI
19th Aug 2025225 AMAQI

15°C12/17°C

19th Aug 2025236 AMAQI
19th Aug 2025237 AMAQI
19th Aug 2025228 AMAQI
19th Aug 2025229 AMAQI
19th Aug 20252210 AMAQI
19th Aug 20252311 AMAQI
19th Aug 20252312 PMAQI
19th Aug 2025221 PMAQI
19th Aug 2025232 PMAQI
19th Aug 2025223 PMAQI
19th Aug 2025234 PMAQI
19th Aug 2025225 PMAQI
19th Aug 2025226 PMAQI
19th Aug 2025247 PMAQI
19th Aug 2025238 PMAQI
19th Aug 2025209 PMAQI
19th Aug 20252310 PMAQI
19th Aug 20252511 PMAQI
20th Aug 20252312 AMAQI
20th Aug 2025201 AMAQI
20th Aug 2025182 AMAQI
20th Aug 2025183 AMAQI
20th Aug 2025184 AMAQI
20th Aug 2025185 AMAQI

15°C12/18°C

20th Aug 2025186 AMAQI
20th Aug 2025187 AMAQI
20th Aug 2025188 AMAQI
20th Aug 2025189 AMAQI
20th Aug 20251710 AMAQI
20th Aug 20251911 AMAQI
20th Aug 20251912 PMAQI
20th Aug 2025201 PMAQI
20th Aug 2025202 PMAQI
20th Aug 2025213 PMAQI
20th Aug 2025224 PMAQI
20th Aug 2025225 PMAQI
20th Aug 2025226 PMAQI
20th Aug 2025187 PMAQI
20th Aug 2025208 PMAQI
20th Aug 2025209 PMAQI
20th Aug 20251910 PMAQI
20th Aug 20252011 PMAQI
21st Aug 20252112 AMAQI
21st Aug 2025221 AMAQI
21st Aug 2025222 AMAQI
21st Aug 2025233 AMAQI
21st Aug 2025224 AMAQI
21st Aug 2025225 AMAQI

13°C10/17°C

21st Aug 2025216 AMAQI
21st Aug 2025227 AMAQI
21st Aug 2025228 AMAQI
21st Aug 2025219 AMAQI
21st Aug 20252210 AMAQI
21st Aug 20252211 AMAQI
21st Aug 20252412 PMAQI
21st Aug 2025231 PMAQI
21st Aug 2025242 PMAQI
21st Aug 2025233 PMAQI
21st Aug 2025234 PMAQI
21st Aug 2025245 PMAQI
21st Aug 2025246 PMAQI
21st Aug 2025227 PMAQI
21st Aug 2025238 PMAQI
21st Aug 2025239 PMAQI
21st Aug 20252410 PMAQI
21st Aug 20252311 PMAQI
22nd Aug 20252512 AMAQI
22nd Aug 2025271 AMAQI
22nd Aug 2025262 AMAQI
22nd Aug 2025273 AMAQI
22nd Aug 2025274 AMAQI
22nd Aug 2025255 AMAQI

16°C11/22°C

22nd Aug 2025246 AMAQI
22nd Aug 2025247 AMAQI
22nd Aug 2025268 AMAQI
22nd Aug 2025249 AMAQI
22nd Aug 20252310 AMAQI
22nd Aug 20252311 AMAQI
22nd Aug 20252412 PMAQI
22nd Aug 2025241 PMAQI
22nd Aug 2025232 PMAQI
22nd Aug 2025243 PMAQI
22nd Aug 2025254 PMAQI
22nd Aug 2025255 PMAQI
22nd Aug 2025256 PMAQI
22nd Aug 2025257 PMAQI
22nd Aug 2025248 PMAQI
22nd Aug 2025249 PMAQI
22nd Aug 20252610 PMAQI
22nd Aug 20252711 PMAQI
23rd Aug 20252812 AMAQI
23rd Aug 2025321 AMAQI
23rd Aug 2025322 AMAQI
23rd Aug 2025313 AMAQI
23rd Aug 2025304 AMAQI
23rd Aug 2025285 AMAQI

20°C15/24°C

23rd Aug 2025276 AMAQI
23rd Aug 2025267 AMAQI
23rd Aug 2025268 AMAQI
23rd Aug 2025289 AMAQI
23rd Aug 20252610 AMAQI
23rd Aug 20252611 AMAQI
23rd Aug 20252612 PMAQI
23rd Aug 2025251 PMAQI
23rd Aug 2025262 PMAQI
23rd Aug 2025263 PMAQI
23rd Aug 2025274 PMAQI
23rd Aug 2025285 PMAQI
23rd Aug 2025286 PMAQI
23rd Aug 2025287 PMAQI
23rd Aug 2025298 PMAQI
23rd Aug 2025309 PMAQI
23rd Aug 20252910 PMAQI
23rd Aug 20253211 PMAQI
24th Aug 20253212 AMAQI
24th Aug 2025341 AMAQI
24th Aug 2025352 AMAQI
24th Aug 2025343 AMAQI
24th Aug 2025324 AMAQI
24th Aug 2025345 AMAQI

22°C20/26°C

24th Aug 2025366 AMAQI
24th Aug 2025377 AMAQI
24th Aug 2025378 AMAQI
24th Aug 2025449 AMAQI
24th Aug 20253410 AMAQI
24th Aug 20254011 AMAQI
24th Aug 20253212 PMAQI
24th Aug 2025321 PMAQI
24th Aug 2025342 PMAQI
24th Aug 2025343 PMAQI
24th Aug 2025374 PMAQI
24th Aug 2025395 PMAQI
24th Aug 2025406 PMAQI
24th Aug 2025337 PMAQI
24th Aug 2025368 PMAQI
24th Aug 2025429 PMAQI
24th Aug 20254010 PMAQI
24th Aug 20254211 PMAQI
25th Aug 20254112 AMAQI
25th Aug 2025441 AMAQI
25th Aug 2025452 AMAQI
25th Aug 2025473 AMAQI
25th Aug 2025444 AMAQI
25th Aug 2025445 AMAQI

23°C20/27°C

25th Aug 2025426 AMAQI
25th Aug 2025447 AMAQI
25th Aug 2025428 AMAQI
25th Aug 2025439 AMAQI
25th Aug 20254310 AMAQI
25th Aug 20254811 AMAQI
25th Aug 20255212 PMAQI
25th Aug 2025501 PMAQI
25th Aug 2025512 PMAQI
25th Aug 2025503 PMAQI
25th Aug 2025514 PMAQI
25th Aug 2025545 PMAQI
25th Aug 2025536 PMAQI
25th Aug 2025447 PMAQI
25th Aug 2025478 PMAQI
25th Aug 2025499 PMAQI
25th Aug 20255010 PMAQI
25th Aug 20254511 PMAQI
26th Aug 20254312 AMAQI
26th Aug 2025431 AMAQI
26th Aug 2025442 AMAQI
26th Aug 2025423 AMAQI
26th Aug 2025434 AMAQI
26th Aug 2025435 AMAQI

22°C18/26°C

26th Aug 2025446 AMAQI
26th Aug 2025407 AMAQI
26th Aug 2025398 AMAQI
26th Aug 2025429 AMAQI
26th Aug 20253910 AMAQI
26th Aug 20254411 AMAQI
26th Aug 20254212 PMAQI
26th Aug 2025361 PMAQI
26th Aug 2025422 PMAQI
26th Aug 2025383 PMAQI
26th Aug 2025414 PMAQI
26th Aug 2025405 PMAQI
26th Aug 2025406 PMAQI
26th Aug 2025407 PMAQI
26th Aug 2025418 PMAQI
26th Aug 2025429 PMAQI
26th Aug 20254010 PMAQI
26th Aug 20253911 PMAQI
27th Aug 20254212 AMAQI
27th Aug 2025431 AMAQI
27th Aug 2025422 AMAQI
27th Aug 2025383 AMAQI
27th Aug 2025394 AMAQI
27th Aug 2025395 AMAQI

21°C17/26°C

27th Aug 2025376 AMAQI
27th Aug 2025367 AMAQI
27th Aug 2025348 AMAQI
27th Aug 2025349 AMAQI
27th Aug 20253810 AMAQI
27th Aug 20253011 AMAQI
27th Aug 20252812 PMAQI
27th Aug 2025281 PMAQI
27th Aug 2025302 PMAQI
27th Aug 2025323 PMAQI
27th Aug 2025324 PMAQI
27th Aug 2025325 PMAQI
27th Aug 2025326 PMAQI
27th Aug 2025357 PMAQI
27th Aug 2025368 PMAQI
27th Aug 2025369 PMAQI
27th Aug 20253410 PMAQI
27th Aug 20253211 PMAQI
28th Aug 20253212 AMAQI
28th Aug 2025301 AMAQI
28th Aug 2025302 AMAQI
28th Aug 2025293 AMAQI
28th Aug 2025304 AMAQI
28th Aug 2025305 AMAQI

20°C18/21°C

28th Aug 2025286 AMAQI
28th Aug 2025277 AMAQI
28th Aug 2025268 AMAQI
28th Aug 2025279 AMAQI
28th Aug 20252710 AMAQI
28th Aug 20252811 AMAQI
28th Aug 20252412 PMAQI
28th Aug 2025301 PMAQI
28th Aug 2025312 PMAQI
28th Aug 2025373 PMAQI
28th Aug 2025394 PMAQI
28th Aug 2025375 PMAQI
28th Aug 2025386 PMAQI
28th Aug 2025317 PMAQI
28th Aug 2025308 PMAQI
28th Aug 2025309 PMAQI
28th Aug 20253110 PMAQI
28th Aug 20254211 PMAQI
29th Aug 20254212 AMAQI
29th Aug 2025431 AMAQI
29th Aug 2025452 AMAQI
29th Aug 2025443 AMAQI
29th Aug 2025444 AMAQI
29th Aug 2025455 AMAQI

19°C16/21°C

29th Aug 2025456 AMAQI
29th Aug 2025447 AMAQI
29th Aug 2025438 AMAQI
29th Aug 2025399 AMAQI
29th Aug 20253710 AMAQI
29th Aug 20253411 AMAQI
29th Aug 20253512 PMAQI
29th Aug 2025341 PMAQI
29th Aug 2025332 PMAQI
29th Aug 2025343 PMAQI
29th Aug 2025354 PMAQI
29th Aug 2025365 PMAQI
29th Aug 2025346 PMAQI
29th Aug 2025407 PMAQI
29th Aug 2025378 PMAQI
29th Aug 2025369 PMAQI
29th Aug 20253410 PMAQI
29th Aug 20253211 PMAQI
30th Aug 20253012 AMAQI
30th Aug 2025281 AMAQI
30th Aug 2025302 AMAQI
30th Aug 2025303 AMAQI
30th Aug 2025304 AMAQI
30th Aug 2025305 AMAQI

18°C15/21°C

30th Aug 2025286 AMAQI
30th Aug 2025287 AMAQI
30th Aug 2025288 AMAQI
30th Aug 2025299 AMAQI
30th Aug 20253010 AMAQI
30th Aug 20253011 AMAQI
30th Aug 20253112 PMAQI
30th Aug 2025311 PMAQI
30th Aug 2025302 PMAQI
30th Aug 2025313 PMAQI
30th Aug 2025324 PMAQI
30th Aug 2025335 PMAQI
30th Aug 2025346 PMAQI
30th Aug 2025317 PMAQI
30th Aug 2025338 PMAQI
30th Aug 2025359 PMAQI
30th Aug 20253510 PMAQI
30th Aug 20253311 PMAQI
31st Aug 20253312 AMAQI
31st Aug 2025341 AMAQI
31st Aug 2025332 AMAQI
31st Aug 2025333 AMAQI
31st Aug 2025364 AMAQI
31st Aug 2025365 AMAQI

16°C13/19°C

31st Aug 2025366 AMAQI
31st Aug 2025397 AMAQI
31st Aug 2025408 AMAQI
31st Aug 2025409 AMAQI
31st Aug 20254310 AMAQI
31st Aug 20254111 AMAQI
31st Aug 20253912 PMAQI
31st Aug 2025371 PMAQI
31st Aug 2025372 PMAQI
31st Aug 2025363 PMAQI
31st Aug 2025384 PMAQI
31st Aug 2025445 PMAQI
31st Aug 2025456 PMAQI
31st Aug 2025347 PMAQI
31st Aug 2025408 PMAQI
31st Aug 2025449 PMAQI
31st Aug 20254310 PMAQI
31st Aug 20254211 PMAQI
1st Sep 20254012 AMAQI
1st Sep 2025391 AMAQI
1st Sep 2025362 AMAQI
1st Sep 2025363 AMAQI
1st Sep 2025334 AMAQI
1st Sep 2025355 AMAQI

18°C15/20°C

1st Sep 2025346 AMAQI
1st Sep 2025347 AMAQI
1st Sep 2025348 AMAQI
1st Sep 2025359 AMAQI
1st Sep 20253410 AMAQI
1st Sep 20253411 AMAQI
1st Sep 20253412 PMAQI
1st Sep 2025361 PMAQI
1st Sep 2025342 PMAQI
1st Sep 2025343 PMAQI
1st Sep 2025304 PMAQI
1st Sep 2025305 PMAQI
1st Sep 2025326 PMAQI
1st Sep 2025347 PMAQI
1st Sep 2025368 PMAQI
1st Sep 2025389 PMAQI
1st Sep 20253510 PMAQI
1st Sep 20253111 PMAQI
2nd Sep 20253112 AMAQI
2nd Sep 2025301 AMAQI
2nd Sep 2025282 AMAQI
2nd Sep 2025273 AMAQI
2nd Sep 2025284 AMAQI
2nd Sep 2025285 AMAQI

16°C14/18°C

2nd Sep 2025296 AMAQI
2nd Sep 2025317 AMAQI
2nd Sep 2025328 AMAQI
2nd Sep 2025329 AMAQI
2nd Sep 20253410 AMAQI
2nd Sep 20253411 AMAQI
2nd Sep 20253412 PMAQI
2nd Sep 2025331 PMAQI
2nd Sep 2025332 PMAQI
2nd Sep 2025363 PMAQI
2nd Sep 2025364 PMAQI
2nd Sep 2025365 PMAQI
2nd Sep 2025346 PMAQI
2nd Sep 2025307 PMAQI
2nd Sep 2025378 PMAQI
2nd Sep 2025409 PMAQI
2nd Sep 20253810 PMAQI
2nd Sep 20254011 PMAQI
3rd Sep 20253912 AMAQI
3rd Sep 2025401 AMAQI
3rd Sep 2025422 AMAQI
3rd Sep 2025433 AMAQI
3rd Sep 2025494 AMAQI
3rd Sep 2025495 AMAQI

17°C13/21°C

3rd Sep 2025546 AMAQI
3rd Sep 2025547 AMAQI
3rd Sep 2025548 AMAQI
3rd Sep 2025569 AMAQI
3rd Sep 20255810 AMAQI
3rd Sep 20255811 AMAQI
3rd Sep 20255612 PMAQI
3rd Sep 2025541 PMAQI
3rd Sep 2025512 PMAQI
3rd Sep 2025503 PMAQI
3rd Sep 2025494 PMAQI
3rd Sep 2025535 PMAQI
3rd Sep 2025566 PMAQI
3rd Sep 2025477 PMAQI
3rd Sep 2025528 PMAQI
3rd Sep 2025509 PMAQI
3rd Sep 20255310 PMAQI
3rd Sep 20255011 PMAQI
4th Sep 20254612 AMAQI
4th Sep 2025441 AMAQI
4th Sep 2025402 AMAQI
4th Sep 2025243 AMAQI
4th Sep 2025194 AMAQI
4th Sep 2025195 AMAQI

19°C16/24°C

4th Sep 2025206 AMAQI
4th Sep 2025197 AMAQI
4th Sep 2025188 AMAQI
4th Sep 2025189 AMAQI
4th Sep 20251910 AMAQI
4th Sep 20252411 AMAQI
4th Sep 20252612 PMAQI
4th Sep 2025271 PMAQI
4th Sep 2025242 PMAQI
4th Sep 2025273 PMAQI
4th Sep 2025304 PMAQI
4th Sep 2025315 PMAQI
4th Sep 2025416 PMAQI
4th Sep 2025357 PMAQI
4th Sep 2025368 PMAQI
4th Sep 2025359 PMAQI
4th Sep 20254010 PMAQI
4th Sep 20254211 PMAQI
5th Sep 20254212 AMAQI
5th Sep 2025341 AMAQI
5th Sep 2025392 AMAQI
5th Sep 2025363 AMAQI
5th Sep 2025434 AMAQI
5th Sep 2025375 AMAQI

19°C16/23°C

5th Sep 2025406 AMAQI
5th Sep 2025327 AMAQI
5th Sep 2025388 AMAQI
5th Sep 2025469 AMAQI
5th Sep 20253510 AMAQI
5th Sep 20254011 AMAQI
5th Sep 20254212 PMAQI
5th Sep 2025481 PMAQI
5th Sep 2025482 PMAQI
5th Sep 2025503 PMAQI
5th Sep 2025494 PMAQI
5th Sep 2025535 PMAQI
5th Sep 2025516 PMAQI
5th Sep 2025317 PMAQI
5th Sep 2025488 PMAQI
5th Sep 2025449 PMAQI
5th Sep 20254610 PMAQI
5th Sep 20254311 PMAQI
6th Sep 20254212 AMAQI
6th Sep 2025391 AMAQI
6th Sep 2025402 AMAQI
6th Sep 2025403 AMAQI
6th Sep 2025364 AMAQI
6th Sep 2025355 AMAQI

19°C16/22°C

6th Sep 2025336 AMAQI
6th Sep 2025307 AMAQI
6th Sep 2025328 AMAQI
6th Sep 2025299 AMAQI
6th Sep 20253210 AMAQI
6th Sep 20252711 AMAQI
6th Sep 20253012 PMAQI
6th Sep 2025301 PMAQI
6th Sep 2025312 PMAQI
6th Sep 2025323 PMAQI
6th Sep 2025304 PMAQI
6th Sep 2025305 PMAQI
6th Sep 2025336 PMAQI
6th Sep 2025327 PMAQI
6th Sep 2025308 PMAQI
6th Sep 2025289 PMAQI
6th Sep 20252610 PMAQI
6th Sep 20252711 PMAQI
7th Sep 20252912 AMAQI
7th Sep 2025281 AMAQI
7th Sep 2025292 AMAQI
7th Sep 2025253 AMAQI
7th Sep 2025264 AMAQI
7th Sep 2025245 AMAQI

17°C15/19°C

7th Sep 2025246 AMAQI
6 AM
7th Sep 2025247 AMAQI
7th Sep 2025248 AMAQI
7th Sep 2025249 AMAQI
7th Sep 20252710 AMAQI
7th Sep 20252611 AMAQI
7th Sep 20252712 PMAQI
7th Sep 2025261 PMAQI
1 PM
8 PM
1 AM
5 AM

--°C/°C

Day time
Avg. Highest Time
5 PM - 6 PM

30AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
6 AM - 8 AM

28AQI

3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 PM to 6 PM (Avg. 30), while the lowest AQI was between 6 AM to 8 AM (Avg. 28).
Night time
Avg. Highest Time
12 AM

30AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
5 AM

28AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 12 AM (Avg. 30), while the lowest AQI was between 5 AM to 5 AM (Avg. 28).

2025 Days Vs Air Quality

Port Angeles, Washington, United States

2025

100%

248

0.4%

1

Total number of days with different AQI categories in last 250 days in 2025 (115 days remaining)

Good
248 Days
Moderate
1 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days



Under WHO’s Safe Air Quality Limits: 100%

Health Risk Level:

Very Low

In 2025, 100% of 250 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

Port Angeles, Washington, 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.

-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
32AQI
2nd January 2025
38AQI
3rd January 2025
28AQI
4th January 2025
38AQI
5th January 2025
28AQI
6th January 2025
21AQI
7th January 2025
30AQI
8th January 2025
42AQI
9th January 2025
34AQI
10th January 2025
27AQI
11th January 2025
26AQI
12th January 2025
38AQI
13th January 2025
37AQI
14th January 2025
45AQI
15th January 2025
41AQI
16th January 2025
33AQI
17th January 2025
37AQI
18th January 2025
41AQI
19th January 2025
42AQI
20th January 2025
41AQI
21st January 2025
44AQI
22nd January 2025
47AQI
23rd January 2025
44AQI
24th January 2025
37AQI
25th January 2025
36AQI
26th January 2025
45AQI
27th January 2025
42AQI
28th January 2025
46AQI
29th January 2025
53AQI
30th January 2025
42AQI
31st January 2025
32AQI
1st February 2025
21AQI
2nd February 2025
35AQI
3rd February 2025
35AQI
4th February 2025
21AQI
5th February 2025
24AQI
6th February 2025
27AQI
7th February 2025
40AQI
8th February 2025
35AQI
9th February 2025
38AQI
10th February 2025
27AQI
11th February 2025
26AQI
12th February 2025
40AQI
13th February 2025
32AQI
14th February 2025
33AQI
15th February 2025
29AQI
16th February 2025
30AQI
17th February 2025
30AQI
18th February 2025
30AQI
19th February 2025
23AQI
20th February 2025
26AQI
21st February 2025
28AQI
22nd February 2025
32AQI
23rd February 2025
22AQI
24th February 2025
29AQI
25th February 2025
19AQI
26th February 2025
24AQI
27th February 2025
26AQI
28th February 2025
33AQI
1st March 2025
33AQI
2nd March 2025
36AQI
3rd March 2025
19AQI
4th March 2025
20AQI
5th March 2025
22AQI
6th March 2025
20AQI
7th March 2025
22AQI
8th March 2025
29AQI
9th March 2025
25AQI
10th March 2025
21AQI
11th March 2025
26AQI
12th March 2025
23AQI
13th March 2025
18AQI
14th March 2025
24AQI
15th March 2025
20AQI
16th March 2025
19AQI
17th March 2025
21AQI
18th March 2025
17AQI
19th March 2025
22AQI
20th March 2025
17AQI
21st March 2025
20AQI
22nd March 2025
18AQI
23rd March 2025
22AQI
24th March 2025
21AQI
25th March 2025
25AQI
26th March 2025
30AQI
27th March 2025
21AQI
28th March 2025
18AQI
29th March 2025
21AQI
30th March 2025
25AQI
31st March 2025
21AQI
1st April 2025
21AQI
2nd April 2025
21AQI
3rd April 2025
20AQI
4th April 2025
27AQI
5th April 2025
36AQI
6th April 2025
31AQI
7th April 2025
18AQI
8th April 2025
23AQI
9th April 2025
19AQI
10th April 2025
26AQI
11th April 2025
19AQI
12th April 2025
17AQI
13th April 2025
23AQI
14th April 2025
24AQI
15th April 2025
25AQI
16th April 2025
22AQI
17th April 2025
23AQI
18th April 2025
23AQI
19th April 2025
23AQI
20th April 2025
17AQI
21st April 2025
16AQI
22nd April 2025
19AQI
23rd April 2025
22AQI
24th April 2025
26AQI
25th April 2025
35AQI
26th April 2025
34AQI
27th April 2025
32AQI
28th April 2025
19AQI
29th April 2025
20AQI
30th April 2025
18AQI
1st May 2025
24AQI
2nd May 2025
24AQI
3rd May 2025
16AQI
4th May 2025
16AQI
5th May 2025
19AQI
6th May 2025
21AQI
7th May 2025
19AQI
8th May 2025
20AQI
9th May 2025
21AQI
10th May 2025
19AQI
11th May 2025
20AQI
12th May 2025
16AQI
13th May 2025
23AQI
14th May 2025
22AQI
15th May 2025
24AQI
16th May 2025
23AQI
17th May 2025
19AQI
18th May 2025
16AQI
19th May 2025
19AQI
20th May 2025
17AQI
21st May 2025
17AQI
22nd May 2025
17AQI
23rd May 2025
17AQI
24th May 2025
18AQI
25th May 2025
17AQI
26th May 2025
17AQI
27th May 2025
17AQI
28th May 2025
20AQI
29th May 2025
18AQI
30th May 2025
21AQI
31st May 2025
21AQI
1st June 2025
21AQI
2nd June 2025
24AQI
3rd June 2025
27AQI
4th June 2025
16AQI
5th June 2025
20AQI
6th June 2025
25AQI
7th June 2025
25AQI
8th June 2025
24AQI
9th June 2025
32AQI
10th June 2025
40AQI
11th June 2025
40AQI
12th June 2025
34AQI
13th June 2025
23AQI
14th June 2025
22AQI
15th June 2025
22AQI
16th June 2025
19AQI
17th June 2025
19AQI
18th June 2025
17AQI
19th June 2025
17AQI
20th June 2025
19AQI
21st June 2025
19AQI
22nd June 2025
21AQI
23rd June 2025
22AQI
24th June 2025
31AQI
25th June 2025
26AQI
26th June 2025
18AQI
27th June 2025
17AQI
28th June 2025
21AQI
29th June 2025
23AQI
30th June 2025
26AQI
1st July 2025
20AQI
2nd July 2025
19AQI
3rd July 2025
18AQI
4th July 2025
19AQI
5th July 2025
21AQI
6th July 2025
19AQI
7th July 2025
19AQI
8th July 2025
19AQI
9th July 2025
16AQI
10th July 2025
18AQI
11th July 2025
20AQI
12th July 2025
18AQI
13th July 2025
24AQI
14th July 2025
20AQI
15th July 2025
23AQI
16th July 2025
29AQI
17th July 2025
34AQI
18th July 2025
28AQI
19th July 2025
23AQI
20th July 2025
21AQI
21st July 2025
23AQI
22nd July 2025
21AQI
23rd July 2025
19AQI
24th July 2025
19AQI
25th July 2025
17AQI
26th July 2025
20AQI
27th July 2025
22AQI
28th July 2025
22AQI
29th July 2025
22AQI
30th July 2025
20AQI
31st July 2025
18AQI
1st August 2025
19AQI
2nd August 2025
19AQI
3rd August 2025
25AQI
4th August 2025
33AQI
5th August 2025
28AQI
6th August 2025
28AQI
7th August 2025
17AQI
8th August 2025
19AQI
9th August 2025
20AQI
10th August 2025
24AQI
11th August 2025
27AQI
12th August 2025
26AQI
13th August 2025
26AQI
14th August 2025
23AQI
15th August 2025
19AQI
16th August 2025
15AQI
17th August 2025
19AQI
18th August 2025
22AQI
19th August 2025
23AQI
20th August 2025
19AQI
21st August 2025
23AQI
22nd August 2025
25AQI
23rd August 2025
28AQI
24th August 2025
36AQI
25th August 2025
47AQI
26th August 2025
41AQI
27th August 2025
36AQI
28th August 2025
31AQI
29th August 2025
39AQI
30th August 2025
31AQI
31st August 2025
38AQI
1st September 2025
35AQI
2nd September 2025
33AQI
3rd September 2025
50AQI
4th September 2025
28AQI
5th September 2025
43AQI
6th September 2025
34AQI
7th September 2025
8th September 2025
9th September 2025
10th September 2025
11th September 2025
12th September 2025
13th September 2025
14th September 2025
15th September 2025
16th September 2025
17th September 2025
18th September 2025
19th September 2025
20th September 2025
21st September 2025
22nd September 2025
23rd September 2025
24th September 2025
25th September 2025
26th September 2025
27th September 2025
28th September 2025
29th September 2025
30th September 2025
1st October 2025
2nd October 2025
3rd October 2025
4th October 2025
5th October 2025
6th October 2025
7th October 2025
8th October 2025
9th October 2025
10th October 2025
11th October 2025
12th October 2025
13th October 2025
14th October 2025
15th October 2025
16th October 2025
17th October 2025
18th October 2025
19th October 2025
20th October 2025
21st October 2025
22nd October 2025
23rd October 2025
24th October 2025
25th October 2025
26th October 2025
27th October 2025
28th October 2025
29th October 2025
30th October 2025
31st October 2025
1st November 2025
2nd November 2025
3rd November 2025
4th November 2025
5th November 2025
6th November 2025
7th November 2025
8th November 2025
9th November 2025
10th November 2025
11th November 2025
12th November 2025
13th November 2025
14th November 2025
15th November 2025
16th November 2025
17th November 2025
18th November 2025
19th November 2025
20th November 2025
21st November 2025
22nd November 2025
23rd November 2025
24th November 2025
25th November 2025
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025

38AQI

29AQI

22AQI

23AQI

19AQI

24AQI

21AQI

27AQI

37AQI


No. of days

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

202526AQI

30
1
28
31
30
31
30
31
31
6
248
1

Highest AQI recorded in

January

38AQI


Lowest AQI recorded in

May

19AQI


202424AQI

31
29
31
30
31
29
31
31
28
31
28
2
29
2
359
4

Highest AQI recorded in

December

35AQI


Lowest AQI recorded in

June

17AQI


202329AQI

30
1
27
1
31
30
28
1
1
1
30
30
1
26
5
29
1
31
17
7
30
1
339
18
1
1

Highest AQI recorded in

November

47AQI


Lowest AQI recorded in

July

18AQI


202229AQI

28
3
20
1
31
29
31
30
21
1
27
2
25
5
1
18
12
27
4
288
27
1

Highest AQI recorded in

November

46AQI


Lowest AQI recorded in

July

17AQI


202125AQI

29
1
28
31
30
31
29
1
31
29
2
24
31
22
3
31
346
7

Highest AQI recorded in

January

38AQI


Lowest AQI recorded in

July

16AQI


202031AQI

13
20
18
28
31
31
20
3
1
1
5
22
3
28
2
25
6
236
14
1
1
5

Highest AQI recorded in

September

70AQI


Lowest AQI recorded in

June

15AQI


Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2020(Avg.)
31AQI
Least Polluted Year Recorded
2024(Avg.)
24AQI


Port Angeles's annual 2025 AQI (26) shows an average percentage change of -5.7% (improved AQI) compared to previous years: 2020 (31), 2021 (25), 2022 (29), 2023 (29), 2024 (24).