Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Prosser, 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

Prosser, Washington, United States

2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
1st Aug 2026
68AQI
Lowest AQI recorded on
16th Aug 2025
13AQI

Same Day Analysis (2nd August):
On this day, AQI across the 2 years varied significantly: 2026 ranks 2nd highest AQI at 53 of Moderate air quality, showing improvement over 2025 on the same day.

Day & Night AQI Trend: 2nd Aug - 3rd Aug 2026

Prosser, Washington, United States

AQI
Day
Night
.

5 AM2nd Aug 2026

8 PM

4 AM3rd Aug 2026

Day time
Avg. Highest Time
5PM2nd Aug

67AQI

Avg. Lowest Time
6AM2nd Aug

25AQI

Night time
Avg. Highest Time
10PM2nd Aug

90AQI

Avg. Lowest Time
3AM3rd Aug

54AQI

In the last 24 hours,

Prosser's AQI reached its highest point of 90 at 10 PM during the Night, while the lowest point, 25, was recorded at 6 AM during the Day between 2nd Aug and 3rd Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Prosser, Washington, United States

JulAug
05th - 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 - 02nd02nd - 03rd03rd
Day
Night
5th Jul 2026145 AMAQI
5th Jul 2026136 AMAQI
5th Jul 2026127 AMAQI
5th Jul 2026118 AMAQI
5th Jul 202699 AMAQI
5th Jul 20261010 AMAQI
5th Jul 20261011 AMAQI
5th Jul 20261012 PMAQI
5th Jul 2026121 PMAQI
5th Jul 202692 PMAQI
5th Jul 2026253 PMAQI
5th Jul 2026284 PMAQI
5th Jul 2026225 PMAQI
5th Jul 2026216 PMAQI
5th Jul 2026217 PMAQI
5th Jul 202688 PMAQI
5th Jul 202689 PMAQI
5th Jul 20261210 PMAQI
5th Jul 20261911 PMAQI
6th Jul 20262712 AMAQI
6th Jul 2026271 AMAQI
6th Jul 2026312 AMAQI
6th Jul 2026273 AMAQI
6th Jul 2026244 AMAQI

25°C16/33°C

6th Jul 2026245 AMAQI
6th Jul 2026186 AMAQI
6th Jul 2026217 AMAQI
6th Jul 2026248 AMAQI
6th Jul 2026289 AMAQI
6th Jul 20263210 AMAQI
6th Jul 20263011 AMAQI
6th Jul 20263012 PMAQI
6th Jul 2026251 PMAQI
6th Jul 2026242 PMAQI
6th Jul 2026203 PMAQI
6th Jul 2026184 PMAQI
6th Jul 2026165 PMAQI
6th Jul 2026146 PMAQI
6th Jul 2026347 PMAQI
6th Jul 2026318 PMAQI
6th Jul 2026329 PMAQI
6th Jul 20262810 PMAQI
6th Jul 20262411 PMAQI
7th Jul 20261912 AMAQI
7th Jul 2026241 AMAQI
7th Jul 2026222 AMAQI
7th Jul 2026183 AMAQI
7th Jul 2026174 AMAQI

26°C14/35°C

7th Jul 2026225 AMAQI
7th Jul 2026226 AMAQI
7th Jul 2026257 AMAQI
7th Jul 2026268 AMAQI
7th Jul 2026269 AMAQI
7th Jul 20263210 AMAQI
7th Jul 20263111 AMAQI
7th Jul 20262312 PMAQI
7th Jul 2026251 PMAQI
7th Jul 2026212 PMAQI
7th Jul 2026203 PMAQI
7th Jul 2026184 PMAQI
7th Jul 2026165 PMAQI
7th Jul 2026146 PMAQI
7th Jul 2026157 PMAQI
7th Jul 2026158 PMAQI
7th Jul 2026149 PMAQI
7th Jul 20262010 PMAQI
7th Jul 20262411 PMAQI
8th Jul 20262412 AMAQI
8th Jul 2026221 AMAQI
8th Jul 2026232 AMAQI
8th Jul 2026233 AMAQI
8th Jul 2026224 AMAQI

28°C16/38°C

8th Jul 2026225 AMAQI
8th Jul 2026196 AMAQI
8th Jul 2026187 AMAQI
8th Jul 2026188 AMAQI
8th Jul 2026169 AMAQI
8th Jul 20261410 AMAQI
8th Jul 20261711 AMAQI
8th Jul 20261912 PMAQI
8th Jul 2026191 PMAQI
8th Jul 2026202 PMAQI
8th Jul 2026343 PMAQI
8th Jul 2026304 PMAQI
8th Jul 2026215 PMAQI
8th Jul 2026186 PMAQI
8th Jul 2026147 PMAQI
8th Jul 2026108 PMAQI
8th Jul 2026129 PMAQI
8th Jul 20261410 PMAQI
8th Jul 20261611 PMAQI
9th Jul 20261612 AMAQI
9th Jul 2026181 AMAQI
9th Jul 2026182 AMAQI
9th Jul 2026183 AMAQI
9th Jul 2026204 AMAQI

27°C20/34°C

9th Jul 2026175 AMAQI
9th Jul 2026166 AMAQI
9th Jul 2026147 AMAQI
9th Jul 2026148 AMAQI
9th Jul 2026229 AMAQI
9th Jul 20261810 AMAQI
9th Jul 20261111 AMAQI
9th Jul 2026812 PMAQI
9th Jul 2026281 PMAQI
9th Jul 2026212 PMAQI
9th Jul 2026223 PMAQI
9th Jul 2026214 PMAQI
9th Jul 2026145 PMAQI
9th Jul 2026166 PMAQI
9th Jul 2026157 PMAQI
9th Jul 2026168 PMAQI
9th Jul 2026189 PMAQI
9th Jul 20261610 PMAQI
9th Jul 20261811 PMAQI
10th Jul 20261512 AMAQI
10th Jul 2026151 AMAQI
10th Jul 2026162 AMAQI
10th Jul 2026193 AMAQI
10th Jul 2026164 AMAQI

27°C17/35°C

10th Jul 2026165 AMAQI
10th Jul 2026136 AMAQI
10th Jul 2026127 AMAQI
10th Jul 2026128 AMAQI
10th Jul 2026249 AMAQI
10th Jul 20263010 AMAQI
10th Jul 20262711 AMAQI
10th Jul 20262812 PMAQI
10th Jul 2026261 PMAQI
10th Jul 2026222 PMAQI
10th Jul 2026193 PMAQI
10th Jul 2026164 PMAQI
10th Jul 2026175 PMAQI
10th Jul 2026226 PMAQI
10th Jul 2026217 PMAQI
10th Jul 2026178 PMAQI
10th Jul 2026289 PMAQI
10th Jul 20266010 PMAQI
10th Jul 20264411 PMAQI
11th Jul 202615612 AMAQI
11th Jul 20261221 AMAQI
11th Jul 2026702 AMAQI
11th Jul 2026573 AMAQI
11th Jul 2026364 AMAQI

27°C18/36°C

11th Jul 2026255 AMAQI
11th Jul 2026166 AMAQI
11th Jul 2026157 AMAQI
11th Jul 2026148 AMAQI
11th Jul 2026239 AMAQI
11th Jul 20262610 AMAQI
11th Jul 20262211 AMAQI
11th Jul 20262312 PMAQI
11th Jul 2026361 PMAQI
11th Jul 2026452 PMAQI
11th Jul 2026323 PMAQI
11th Jul 2026284 PMAQI
11th Jul 2026305 PMAQI
11th Jul 2026296 PMAQI
11th Jul 2026207 PMAQI
11th Jul 2026128 PMAQI
11th Jul 2026109 PMAQI
11th Jul 20261310 PMAQI
11th Jul 20261311 PMAQI
12th Jul 20261412 AMAQI
12th Jul 2026131 AMAQI
12th Jul 202692 AMAQI
12th Jul 2026303 AMAQI
12th Jul 2026284 AMAQI

26°C19/34°C

12th Jul 2026295 AMAQI
12th Jul 2026306 AMAQI
12th Jul 2026307 AMAQI
12th Jul 2026328 AMAQI
12th Jul 2026319 AMAQI
12th Jul 20263410 AMAQI
12th Jul 20263111 AMAQI
12th Jul 20262712 PMAQI
12th Jul 2026301 PMAQI
12th Jul 2026282 PMAQI
12th Jul 2026283 PMAQI
12th Jul 2026314 PMAQI
12th Jul 2026295 PMAQI
12th Jul 2026276 PMAQI
12th Jul 2026277 PMAQI
12th Jul 2026108 PMAQI
12th Jul 2026119 PMAQI
12th Jul 20261010 PMAQI
12th Jul 20261011 PMAQI
13th Jul 20261112 AMAQI
13th Jul 2026101 AMAQI
13th Jul 2026312 AMAQI
13th Jul 2026103 AMAQI
13th Jul 2026104 AMAQI

24°C18/31°C

13th Jul 2026105 AMAQI
13th Jul 2026226 AMAQI
13th Jul 2026217 AMAQI
13th Jul 2026188 AMAQI
13th Jul 2026229 AMAQI
13th Jul 20261510 AMAQI
13th Jul 20261411 AMAQI
13th Jul 20261012 PMAQI
13th Jul 202691 PMAQI
13th Jul 2026302 PMAQI
13th Jul 2026323 PMAQI
13th Jul 2026164 PMAQI
13th Jul 2026215 PMAQI
13th Jul 2026336 PMAQI
13th Jul 2026207 PMAQI
13th Jul 2026168 PMAQI
13th Jul 2026209 PMAQI
13th Jul 20263210 PMAQI
13th Jul 20263211 PMAQI
14th Jul 20263312 AMAQI
14th Jul 2026361 AMAQI
14th Jul 2026362 AMAQI
14th Jul 2026343 AMAQI
14th Jul 2026264 AMAQI

26°C14/36°C

14th Jul 2026265 AMAQI
14th Jul 2026286 AMAQI
14th Jul 2026317 AMAQI
14th Jul 2026388 AMAQI
14th Jul 2026299 AMAQI
14th Jul 20264210 AMAQI
14th Jul 20264011 AMAQI
14th Jul 20263812 PMAQI
14th Jul 2026301 PMAQI
14th Jul 2026282 PMAQI
14th Jul 2026283 PMAQI
14th Jul 2026294 PMAQI
14th Jul 2026255 PMAQI
14th Jul 2026256 PMAQI
14th Jul 2026257 PMAQI
14th Jul 2026338 PMAQI
14th Jul 2026309 PMAQI
14th Jul 20263210 PMAQI
14th Jul 20263211 PMAQI
15th Jul 20262812 AMAQI
15th Jul 2026271 AMAQI
15th Jul 2026222 AMAQI
15th Jul 2026183 AMAQI
15th Jul 2026164 AMAQI

29°C20/37°C

15th Jul 2026415 AMAQI
15th Jul 2026296 AMAQI
15th Jul 2026307 AMAQI
15th Jul 2026308 AMAQI
15th Jul 2026289 AMAQI
15th Jul 20262610 AMAQI
15th Jul 20261911 AMAQI
15th Jul 20262012 PMAQI
15th Jul 2026211 PMAQI
15th Jul 2026262 PMAQI
15th Jul 2026243 PMAQI
15th Jul 2026304 PMAQI
15th Jul 2026325 PMAQI
15th Jul 2026346 PMAQI
15th Jul 2026317 PMAQI
15th Jul 2026328 PMAQI
15th Jul 2026309 PMAQI
15th Jul 20269510 PMAQI
15th Jul 202610011 PMAQI
16th Jul 20267112 AMAQI
16th Jul 2026601 AMAQI
16th Jul 2026322 AMAQI
16th Jul 2026223 AMAQI
16th Jul 2026254 AMAQI

30°C22/39°C

16th Jul 2026285 AMAQI
16th Jul 2026246 AMAQI
16th Jul 2026217 AMAQI
16th Jul 2026218 AMAQI
16th Jul 2026209 AMAQI
16th Jul 20262210 AMAQI
16th Jul 20262011 AMAQI
16th Jul 20262312 PMAQI
16th Jul 2026301 PMAQI
16th Jul 2026302 PMAQI
16th Jul 2026423 PMAQI
16th Jul 2026494 PMAQI
16th Jul 2026495 PMAQI
16th Jul 2026486 PMAQI
16th Jul 2026457 PMAQI
16th Jul 2026368 PMAQI
16th Jul 2026499 PMAQI
16th Jul 202611710 PMAQI
16th Jul 20268711 PMAQI
17th Jul 20267712 AMAQI
17th Jul 2026801 AMAQI
17th Jul 20261382 AMAQI
17th Jul 20261443 AMAQI
17th Jul 20261454 AMAQI

30°C22/37°C

17th Jul 20261095 AMAQI
17th Jul 2026966 AMAQI
17th Jul 2026927 AMAQI
17th Jul 2026858 AMAQI
17th Jul 2026709 AMAQI
17th Jul 20266210 AMAQI
17th Jul 20265811 AMAQI
17th Jul 20265212 PMAQI
17th Jul 2026661 PMAQI
17th Jul 2026482 PMAQI
17th Jul 2026593 PMAQI
17th Jul 2026624 PMAQI
17th Jul 2026595 PMAQI
17th Jul 2026556 PMAQI
17th Jul 2026817 PMAQI
17th Jul 2026528 PMAQI
17th Jul 2026529 PMAQI
17th Jul 20265410 PMAQI
17th Jul 20265511 PMAQI
18th Jul 20265312 AMAQI
18th Jul 2026541 AMAQI
18th Jul 2026522 AMAQI
18th Jul 2026253 AMAQI
18th Jul 2026234 AMAQI

26°C18/36°C

18th Jul 2026365 AMAQI
18th Jul 2026486 AMAQI
18th Jul 2026487 AMAQI
18th Jul 2026638 AMAQI
18th Jul 2026549 AMAQI
18th Jul 20264910 AMAQI
18th Jul 20264011 AMAQI
18th Jul 20263812 PMAQI
18th Jul 2026531 PMAQI
18th Jul 2026462 PMAQI
18th Jul 2026423 PMAQI
18th Jul 2026234 PMAQI
18th Jul 2026255 PMAQI
18th Jul 2026346 PMAQI
18th Jul 2026347 PMAQI
18th Jul 2026428 PMAQI
18th Jul 2026429 PMAQI
18th Jul 20264210 PMAQI
18th Jul 20262511 PMAQI
19th Jul 20264912 AMAQI
19th Jul 2026541 AMAQI
19th Jul 2026312 AMAQI
19th Jul 2026363 AMAQI
19th Jul 2026444 AMAQI

25°C16/33°C

19th Jul 2026385 AMAQI
19th Jul 2026386 AMAQI
19th Jul 2026327 AMAQI
19th Jul 2026408 AMAQI
19th Jul 2026499 AMAQI
19th Jul 20264010 AMAQI
19th Jul 20263811 AMAQI
19th Jul 20263112 PMAQI
19th Jul 2026421 PMAQI
19th Jul 2026402 PMAQI
19th Jul 2026383 PMAQI
19th Jul 2026364 PMAQI
19th Jul 2026445 PMAQI
19th Jul 2026426 PMAQI
19th Jul 2026367 PMAQI
19th Jul 2026298 PMAQI
19th Jul 2026369 PMAQI
19th Jul 20265110 PMAQI
19th Jul 20264811 PMAQI
20th Jul 20264212 AMAQI
20th Jul 2026421 AMAQI
20th Jul 2026422 AMAQI
20th Jul 2026423 AMAQI
20th Jul 2026424 AMAQI

26°C16/34°C

20th Jul 2026405 AMAQI
20th Jul 2026486 AMAQI
20th Jul 2026487 AMAQI
20th Jul 2026548 AMAQI
20th Jul 2026629 AMAQI
20th Jul 20264210 AMAQI
20th Jul 20265111 AMAQI
20th Jul 20264812 PMAQI
20th Jul 2026511 PMAQI
20th Jul 2026812 PMAQI
20th Jul 2026513 PMAQI
20th Jul 2026594 PMAQI
20th Jul 2026605 PMAQI
20th Jul 2026646 PMAQI
20th Jul 2026687 PMAQI
20th Jul 2026649 PMAQI
20th Jul 20266210 PMAQI
20th Jul 20266211 PMAQI
21st Jul 20265912 AMAQI
21st Jul 2026601 AMAQI
21st Jul 2026652 AMAQI
21st Jul 2026653 AMAQI
21st Jul 2026654 AMAQI

26°C19/33°C

21st Jul 2026605 AMAQI
21st Jul 2026646 AMAQI
21st Jul 2026627 AMAQI
21st Jul 2026628 AMAQI
21st Jul 2026629 AMAQI
21st Jul 20266510 AMAQI
21st Jul 20266511 AMAQI
21st Jul 20266412 PMAQI
21st Jul 2026681 PMAQI
21st Jul 2026682 PMAQI
21st Jul 2026653 PMAQI
21st Jul 2026664 PMAQI
21st Jul 2026655 PMAQI
21st Jul 2026686 PMAQI
21st Jul 2026687 PMAQI
21st Jul 2026698 PMAQI
21st Jul 2026709 PMAQI
21st Jul 20267210 PMAQI
21st Jul 20267811 PMAQI
22nd Jul 20268012 AMAQI
22nd Jul 2026741 AMAQI
22nd Jul 2026802 AMAQI
22nd Jul 2026833 AMAQI
22nd Jul 2026844 AMAQI

28°C18/38°C

22nd Jul 2026765 AMAQI
22nd Jul 2026816 AMAQI
22nd Jul 2026877 AMAQI
22nd Jul 2026858 AMAQI
22nd Jul 2026829 AMAQI
22nd Jul 20267610 AMAQI
22nd Jul 20267311 AMAQI
22nd Jul 20267512 PMAQI
22nd Jul 2026781 PMAQI
22nd Jul 2026812 PMAQI
22nd Jul 2026793 PMAQI
22nd Jul 2026804 PMAQI
22nd Jul 2026825 PMAQI
22nd Jul 2026846 PMAQI
22nd Jul 2026837 PMAQI
22nd Jul 2026828 PMAQI
22nd Jul 2026929 PMAQI
22nd Jul 202611210 PMAQI
22nd Jul 202610011 PMAQI
23rd Jul 202610012 AMAQI
23rd Jul 2026971 AMAQI
23rd Jul 2026732 AMAQI
23rd Jul 2026673 AMAQI
23rd Jul 2026574 AMAQI

31°C19/40°C

23rd Jul 2026545 AMAQI
23rd Jul 2026546 AMAQI
23rd Jul 2026567 AMAQI
23rd Jul 2026578 AMAQI
23rd Jul 2026629 AMAQI
23rd Jul 20265710 AMAQI
23rd Jul 20265311 AMAQI
23rd Jul 20265612 PMAQI
23rd Jul 2026541 PMAQI
23rd Jul 2026562 PMAQI
23rd Jul 2026643 PMAQI
23rd Jul 2026784 PMAQI
23rd Jul 2026985 PMAQI
23rd Jul 20261406 PMAQI
23rd Jul 20261387 PMAQI
23rd Jul 20261148 PMAQI
23rd Jul 20261089 PMAQI
23rd Jul 20269410 PMAQI
23rd Jul 20268411 PMAQI
24th Jul 20267112 AMAQI
24th Jul 2026641 AMAQI
24th Jul 2026402 AMAQI
24th Jul 2026583 AMAQI
24th Jul 2026604 AMAQI

31°C23/39°C

24th Jul 2026545 AMAQI
24th Jul 2026506 AMAQI
24th Jul 2026467 AMAQI
24th Jul 2026488 AMAQI
24th Jul 2026519 AMAQI
24th Jul 20265610 AMAQI
24th Jul 20265511 AMAQI
24th Jul 20265712 PMAQI
24th Jul 2026461 PMAQI
24th Jul 2026562 PMAQI
24th Jul 2026603 PMAQI
24th Jul 2026444 PMAQI
24th Jul 2026575 PMAQI
24th Jul 2026546 PMAQI
24th Jul 2026627 PMAQI
24th Jul 2026538 PMAQI
24th Jul 2026509 PMAQI
24th Jul 20266710 PMAQI
24th Jul 20265811 PMAQI
25th Jul 20267412 AMAQI
25th Jul 2026701 AMAQI
25th Jul 2026512 AMAQI
25th Jul 2026683 AMAQI
25th Jul 2026674 AMAQI

29°C19/38°C

25th Jul 2026685 AMAQI
25th Jul 2026566 AMAQI
25th Jul 2026607 AMAQI
25th Jul 2026648 AMAQI
25th Jul 2026679 AMAQI
25th Jul 20268110 AMAQI
25th Jul 20265611 AMAQI
25th Jul 20265512 PMAQI
25th Jul 2026571 PMAQI
25th Jul 2026602 PMAQI
25th Jul 2026753 PMAQI
25th Jul 2026694 PMAQI
25th Jul 2026585 PMAQI
25th Jul 2026506 PMAQI
25th Jul 2026527 PMAQI
25th Jul 2026788 PMAQI
25th Jul 2026719 PMAQI
25th Jul 20265910 PMAQI
25th Jul 20264311 PMAQI
26th Jul 20266012 AMAQI
26th Jul 2026681 AMAQI
26th Jul 2026442 AMAQI
26th Jul 2026383 AMAQI
26th Jul 2026344 AMAQI

27°C20/35°C

26th Jul 2026305 AMAQI
26th Jul 2026406 AMAQI
26th Jul 2026387 AMAQI
26th Jul 2026308 AMAQI
26th Jul 2026969 AMAQI
26th Jul 20267210 AMAQI
26th Jul 20264811 AMAQI
26th Jul 20265612 PMAQI
26th Jul 2026901 PMAQI
26th Jul 2026692 PMAQI
26th Jul 2026763 PMAQI
26th Jul 2026694 PMAQI
26th Jul 2026675 PMAQI
26th Jul 2026526 PMAQI
26th Jul 2026677 PMAQI
26th Jul 2026628 PMAQI
26th Jul 2026449 PMAQI
26th Jul 20267810 PMAQI
26th Jul 20266911 PMAQI
27th Jul 20262512 AMAQI
27th Jul 2026511 AMAQI
27th Jul 2026362 AMAQI
27th Jul 2026483 AMAQI
27th Jul 2026274 AMAQI

24°C15/34°C

27th Jul 2026365 AMAQI
27th Jul 2026576 AMAQI
27th Jul 2026567 AMAQI
27th Jul 2026548 AMAQI
27th Jul 2026569 AMAQI
27th Jul 20265510 AMAQI
27th Jul 20264411 AMAQI
27th Jul 20263812 PMAQI
27th Jul 2026441 PMAQI
27th Jul 2026542 PMAQI
27th Jul 2026483 PMAQI
27th Jul 2026654 PMAQI
27th Jul 2026805 PMAQI
27th Jul 2026906 PMAQI
27th Jul 20261007 PMAQI
27th Jul 2026978 PMAQI
27th Jul 2026979 PMAQI
27th Jul 202611410 PMAQI
27th Jul 20269811 PMAQI
28th Jul 202611612 AMAQI
28th Jul 20261161 AMAQI
28th Jul 2026972 AMAQI
28th Jul 2026723 AMAQI
28th Jul 2026704 AMAQI

25°C15/34°C

28th Jul 2026565 AMAQI
28th Jul 2026536 AMAQI
28th Jul 2026567 AMAQI
28th Jul 2026408 AMAQI
28th Jul 2026529 AMAQI
28th Jul 20264510 AMAQI
28th Jul 20264311 AMAQI
28th Jul 20264212 PMAQI
28th Jul 2026621 PMAQI
28th Jul 2026622 PMAQI
28th Jul 2026583 PMAQI
28th Jul 2026734 PMAQI
28th Jul 2026715 PMAQI
28th Jul 2026566 PMAQI
28th Jul 2026517 PMAQI
28th Jul 2026348 PMAQI
28th Jul 2026529 PMAQI
28th Jul 20266810 PMAQI
28th Jul 20266711 PMAQI
29th Jul 20263812 AMAQI
29th Jul 2026531 AMAQI
29th Jul 2026302 AMAQI
29th Jul 2026523 AMAQI
29th Jul 2026564 AMAQI

26°C18/34°C

29th Jul 2026645 AMAQI
29th Jul 2026366 AMAQI
29th Jul 2026257 AMAQI
29th Jul 2026238 AMAQI
29th Jul 2026549 AMAQI
29th Jul 20263410 AMAQI
29th Jul 20264611 AMAQI
29th Jul 20263812 PMAQI
29th Jul 2026481 PMAQI
29th Jul 2026542 PMAQI
29th Jul 2026533 PMAQI
29th Jul 2026554 PMAQI
29th Jul 2026595 PMAQI
29th Jul 2026586 PMAQI
29th Jul 2026627 PMAQI
29th Jul 2026668 PMAQI
29th Jul 2026719 PMAQI
29th Jul 20266710 PMAQI
29th Jul 20264911 PMAQI
30th Jul 20265112 AMAQI
30th Jul 2026521 AMAQI
30th Jul 2026562 AMAQI
30th Jul 2026573 AMAQI
30th Jul 2026594 AMAQI

24°C15/32°C

30th Jul 2026575 AMAQI
30th Jul 2026526 AMAQI
30th Jul 2026537 AMAQI
30th Jul 2026518 AMAQI
30th Jul 2026589 AMAQI
30th Jul 20266310 AMAQI
30th Jul 20264611 AMAQI
30th Jul 20264212 PMAQI
30th Jul 2026591 PMAQI
30th Jul 2026622 PMAQI
30th Jul 2026603 PMAQI
30th Jul 2026764 PMAQI
30th Jul 2026755 PMAQI
30th Jul 2026636 PMAQI
30th Jul 2026677 PMAQI
30th Jul 2026578 PMAQI
30th Jul 2026509 PMAQI
30th Jul 20266210 PMAQI
30th Jul 20265411 PMAQI
31st Jul 20266012 AMAQI
31st Jul 2026581 AMAQI
31st Jul 2026522 AMAQI
31st Jul 2026523 AMAQI
31st Jul 2026484 AMAQI

26°C15/34°C

31st Jul 2026445 AMAQI
31st Jul 2026516 AMAQI
31st Jul 2026537 AMAQI
31st Jul 2026558 AMAQI
31st Jul 2026709 AMAQI
31st Jul 20267610 AMAQI
31st Jul 20265211 AMAQI
31st Jul 20266412 PMAQI
31st Jul 2026621 PMAQI
31st Jul 2026532 PMAQI
31st Jul 2026443 PMAQI
31st Jul 2026654 PMAQI
31st Jul 2026685 PMAQI
31st Jul 2026446 PMAQI
31st Jul 2026557 PMAQI
31st Jul 2026548 PMAQI
31st Jul 2026579 PMAQI
31st Jul 20266010 PMAQI
31st Jul 20265611 PMAQI
1st Aug 20265412 AMAQI
1st Aug 2026551 AMAQI
1st Aug 2026602 AMAQI
1st Aug 2026553 AMAQI
1st Aug 2026564 AMAQI

27°C17/36°C

1st Aug 2026535 AMAQI
1st Aug 2026576 AMAQI
1st Aug 2026537 AMAQI
1st Aug 2026488 AMAQI
1st Aug 2026549 AMAQI
1st Aug 20266010 AMAQI
1st Aug 20266611 AMAQI
1st Aug 20269712 PMAQI
1st Aug 20261011 PMAQI
1st Aug 2026852 PMAQI
1st Aug 2026643 PMAQI
1st Aug 2026764 PMAQI
1st Aug 2026765 PMAQI
1st Aug 20261386 PMAQI
1st Aug 2026927 PMAQI
1st Aug 2026648 PMAQI
1st Aug 2026669 PMAQI
1st Aug 20265310 PMAQI
1st Aug 20265411 PMAQI
2nd Aug 20265112 AMAQI
2nd Aug 2026511 AMAQI
2nd Aug 2026422 AMAQI
2nd Aug 2026463 AMAQI
2nd Aug 2026424 AMAQI

26°C19/34°C

2nd Aug 2026405 AMAQI
2nd Aug 2026256 AMAQI
2nd Aug 2026407 AMAQI
2nd Aug 2026428 AMAQI
2nd Aug 2026479 AMAQI
2nd Aug 20264410 AMAQI
2nd Aug 20263611 AMAQI
2nd Aug 20265112 PMAQI
2nd Aug 2026581 PMAQI
2nd Aug 2026572 PMAQI
2nd Aug 2026603 PMAQI
2nd Aug 2026664 PMAQI
2nd Aug 2026675 PMAQI
2nd Aug 2026536 PMAQI
2nd Aug 2026667 PMAQI
2nd Aug 2026578 PMAQI
2nd Aug 2026589 PMAQI
2nd Aug 20269010 PMAQI
2nd Aug 20268311 PMAQI
3rd Aug 20266812 AMAQI
3rd Aug 2026621 AMAQI
3rd Aug 2026582 AMAQI
3rd Aug 2026543 AMAQI
3rd Aug 2026604 AMAQI

20°C13/28°C

3rd Aug 2026735 AMAQI
5 AM
3rd Aug 2026826 AMAQI
3rd Aug 2026747 AMAQI
3rd Aug 2026648 AMAQI
3rd Aug 2026629 AMAQI
3rd Aug 20264810 AMAQI
3rd Aug 20266011 AMAQI
3rd Aug 20268212 PMAQI
12 PM
3rd Aug 20261211 PMAQI
3rd Aug 20261342 PMAQI
3rd Aug 20261423 PMAQI
3rd Aug 20261444 PMAQI
3rd Aug 20261385 PMAQI
3rd Aug 20261386 PMAQI
3rd Aug 20261327 PMAQI
3rd Aug 20261388 PMAQI
8 PM
3rd Aug 20261409 PMAQI
3rd Aug 202615210 PMAQI
3rd Aug 202615111 PMAQI
12 AM
4 AM

21°C13/29°C

Day time
Avg. Highest Time
6 PM - 7 PM

53AQI

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

40AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 PM to 7 PM (Avg. 53), while the lowest AQI was between 11 AM to 11 AM (Avg. 40).
Night time
Avg. Highest Time
10 PM

60AQI

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

43AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 PM to 10 PM (Avg. 60), while the lowest AQI was between 4 AM to 4 AM (Avg. 43).

2026 Days Vs Air Quality

Prosser, Washington, United States

2026

89%

188

11%

23

Total number of days with different AQI categories in last 215 days in 2026 (150 days remaining)

Good
188 Days
Moderate
23 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 89%

Health Risk Level:

Low

In 2026, 89% of 215 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.

Annual Air Quality Insights

Prosser, 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
74AQI (US)
2nd January 2026
57AQI (US)
3rd January 2026
48AQI (US)
4th January 2026
28AQI (US)
5th January 2026
22AQI (US)
6th January 2026
24AQI (US)
7th January 2026
17AQI (US)
8th January 2026
22AQI (US)
9th January 2026
22AQI (US)
10th January 2026
44AQI (US)
11th January 2026
56AQI (US)
12th January 2026
53AQI (US)
13th January 2026
47AQI (US)
14th January 2026
43AQI (US)
15th January 2026
40AQI (US)
16th January 2026
32AQI (US)
17th January 2026
32AQI (US)
18th January 2026
28AQI (US)
19th January 2026
22AQI (US)
20th January 2026
23AQI (US)
21st January 2026
25AQI (US)
22nd January 2026
37AQI (US)
23rd January 2026
39AQI (US)
24th January 2026
34AQI (US)
25th January 2026
38AQI (US)
26th January 2026
36AQI (US)
27th January 2026
27AQI (US)
28th January 2026
31AQI (US)
29th January 2026
37AQI (US)
30th January 2026
47AQI (US)
31st January 2026
27AQI (US)
1st February 2026
42AQI (US)
2nd February 2026
47AQI (US)
3rd February 2026
42AQI (US)
4th February 2026
36AQI (US)
5th February 2026
40AQI (US)
6th February 2026
28AQI (US)
7th February 2026
28AQI (US)
8th February 2026
39AQI (US)
9th February 2026
44AQI (US)
10th February 2026
31AQI (US)
11th February 2026
28AQI (US)
12th February 2026
23AQI (US)
13th February 2026
24AQI (US)
14th February 2026
30AQI (US)
15th February 2026
28AQI (US)
16th February 2026
40AQI (US)
17th February 2026
30AQI (US)
18th February 2026
33AQI (US)
19th February 2026
28AQI (US)
20th February 2026
28AQI (US)
21st February 2026
25AQI (US)
22nd February 2026
26AQI (US)
23rd February 2026
30AQI (US)
24th February 2026
41AQI (US)
25th February 2026
29AQI (US)
26th February 2026
27AQI (US)
27th February 2026
30AQI (US)
28th February 2026
27AQI (US)
1st March 2026
32AQI (US)
2nd March 2026
47AQI (US)
3rd March 2026
29AQI (US)
4th March 2026
37AQI (US)
5th March 2026
30AQI (US)
6th March 2026
27AQI (US)
7th March 2026
35AQI (US)
8th March 2026
50AQI (US)
9th March 2026
31AQI (US)
10th March 2026
30AQI (US)
11th March 2026
38AQI (US)
12th March 2026
55AQI (US)
13th March 2026
42AQI (US)
14th March 2026
34AQI (US)
15th March 2026
26AQI (US)
16th March 2026
21AQI (US)
17th March 2026
27AQI (US)
18th March 2026
31AQI (US)
19th March 2026
26AQI (US)
20th March 2026
41AQI (US)
21st March 2026
35AQI (US)
22nd March 2026
31AQI (US)
23rd March 2026
29AQI (US)
24th March 2026
28AQI (US)
25th March 2026
28AQI (US)
26th March 2026
18AQI (US)
27th March 2026
16AQI (US)
28th March 2026
20AQI (US)
29th March 2026
12AQI (US)
30th March 2026
29AQI (US)
31st March 2026
18AQI (US)
1st April 2026
22AQI (US)
2nd April 2026
22AQI (US)
3rd April 2026
20AQI (US)
4th April 2026
28AQI (US)
5th April 2026
22AQI (US)
6th April 2026
23AQI (US)
7th April 2026
21AQI (US)
8th April 2026
23AQI (US)
9th April 2026
21AQI (US)
10th April 2026
24AQI (US)
11th April 2026
30AQI (US)
12th April 2026
22AQI (US)
13th April 2026
39AQI (US)
14th April 2026
32AQI (US)
15th April 2026
33AQI (US)
16th April 2026
29AQI (US)
17th April 2026
18th April 2026
19AQI (US)
19th April 2026
19AQI (US)
20th April 2026
24AQI (US)
21st April 2026
36AQI (US)
22nd April 2026
23rd April 2026
20AQI (US)
24th April 2026
21AQI (US)
25th April 2026
19AQI (US)
26th April 2026
27AQI (US)
27th April 2026
17AQI (US)
28th April 2026
28AQI (US)
29th April 2026
19AQI (US)
30th April 2026
24AQI (US)
1st May 2026
23AQI (US)
2nd May 2026
22AQI (US)
3rd May 2026
23AQI (US)
4th May 2026
32AQI (US)
5th May 2026
31AQI (US)
6th May 2026
51AQI (US)
7th May 2026
20AQI (US)
8th May 2026
45AQI (US)
9th May 2026
10th May 2026
26AQI (US)
11th May 2026
21AQI (US)
12th May 2026
26AQI (US)
13th May 2026
62AQI (US)
14th May 2026
24AQI (US)
15th May 2026
42AQI (US)
16th May 2026
48AQI (US)
17th May 2026
54AQI (US)
18th May 2026
47AQI (US)
19th May 2026
44AQI (US)
20th May 2026
46AQI (US)
21st May 2026
37AQI (US)
22nd May 2026
41AQI (US)
23rd May 2026
46AQI (US)
24th May 2026
42AQI (US)
25th May 2026
44AQI (US)
26th May 2026
19AQI (US)
27th May 2026
15AQI (US)
28th May 2026
24AQI (US)
29th May 2026
39AQI (US)
30th May 2026
16AQI (US)
31st May 2026
19AQI (US)
1st June 2026
20AQI (US)
2nd June 2026
14AQI (US)
3rd June 2026
24AQI (US)
4th June 2026
18AQI (US)
5th June 2026
32AQI (US)
6th June 2026
18AQI (US)
7th June 2026
22AQI (US)
8th June 2026
21AQI (US)
9th June 2026
45AQI (US)
10th June 2026
28AQI (US)
11th June 2026
20AQI (US)
12th June 2026
21AQI (US)
13th June 2026
12AQI (US)
14th June 2026
17AQI (US)
15th June 2026
25AQI (US)
16th June 2026
52AQI (US)
17th June 2026
26AQI (US)
18th June 2026
19AQI (US)
19th June 2026
27AQI (US)
20th June 2026
36AQI (US)
21st June 2026
17AQI (US)
22nd June 2026
22AQI (US)
23rd June 2026
32AQI (US)
24th June 2026
25AQI (US)
25th June 2026
32AQI (US)
26th June 2026
40AQI (US)
27th June 2026
23AQI (US)
28th June 2026
29AQI (US)
29th June 2026
32AQI (US)
30th June 2026
17AQI (US)
1st July 2026
15AQI (US)
2nd July 2026
15AQI (US)
3rd July 2026
19AQI (US)
4th July 2026
21AQI (US)
5th July 2026
18AQI (US)
6th July 2026
25AQI (US)
7th July 2026
21AQI (US)
8th July 2026
19AQI (US)
9th July 2026
17AQI (US)
10th July 2026
22AQI (US)
11th July 2026
36AQI (US)
12th July 2026
24AQI (US)
13th July 2026
19AQI (US)
14th July 2026
31AQI (US)
15th July 2026
33AQI (US)
16th July 2026
40AQI (US)
17th July 2026
77AQI (US)
18th July 2026
41AQI (US)
19th July 2026
40AQI (US)
20th July 2026
53AQI (US)
21st July 2026
66AQI (US)
22nd July 2026
83AQI (US)
23rd July 2026
78AQI (US)
24th July 2026
55AQI (US)
25th July 2026
63AQI (US)
26th July 2026
58AQI (US)
27th July 2026
61AQI (US)
28th July 2026
63AQI (US)
29th July 2026
50AQI (US)
30th July 2026
58AQI (US)
31st July 2026
56AQI (US)
1st August 2026
68AQI (US)
2nd August 2026
53AQI (US)
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

36AQI (US)

32AQI (US)

31AQI (US)

24AQI (US)

34AQI (US)

26AQI (US)

41AQI (US)

61AQI (US)

No. of days

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

202632AQI (US)

27
4
28
30
1
28
27
3
29
1
19
12
2
188
23

Highest AQI (US) recorded in

August

61AQI (US)

Lowest AQI (US) recorded in

April

24AQI (US)

202533AQI (US)

6
30
31
30
31
22
9
12
17
1
21
10
18
12
24
7
225
55
1

Highest AQI (US) recorded in

September

55AQI (US)

Lowest AQI (US) recorded in

May

18AQI (US)

Most & Least Polluted Years Over the Last 2 Years

Most Polluted Year Recorded
2025(Avg.)
33AQI (US)
Least Polluted Year Recorded
2026(Avg.)
32AQI (US)

Prosser's annual 2026 AQI (US) (32) shows an average percentage change of -3.03% (improved AQI (US)) compared to previous years: 2025 (33).