Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Casper, Wyoming, 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

Casper, Wyoming, United States

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
22nd Aug 2024
98AQI
Lowest AQI recorded on
3rd Aug 2025
20AQI

Same Day Analysis (3rd August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 57 of Moderate air quality on the same day.

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

Casper, Wyoming, United States

AQI
Day
Night
.

5 AM2nd Aug 2026

8 PM

4 AM3rd Aug 2026

Day time
Avg. Highest Time
11AM2nd Aug

51AQI

Avg. Lowest Time
6AM2nd Aug

23AQI

Night time
Avg. Highest Time
10PM2nd Aug

47AQI

Avg. Lowest Time
1AM3rd Aug

29AQI

In the last 24 hours,

Casper's AQI reached its highest point of 51 at 11 AM during the Day, while the lowest point, 23, was recorded at 6 AM during the Day between 2nd Aug and 3rd Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Casper, Wyoming, 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 2026205 AMAQI
5th Jul 2026176 AMAQI
5th Jul 2026177 AMAQI
5th Jul 2026168 AMAQI
5th Jul 2026149 AMAQI
5th Jul 20261810 AMAQI
5th Jul 20261811 AMAQI
5th Jul 20261512 PMAQI
5th Jul 2026241 PMAQI
5th Jul 2026262 PMAQI
5th Jul 2026223 PMAQI
5th Jul 2026164 PMAQI
5th Jul 2026145 PMAQI
5th Jul 2026166 PMAQI
5th Jul 2026167 PMAQI
5th Jul 2026158 PMAQI
5th Jul 2026169 PMAQI
5th Jul 20261910 PMAQI
5th Jul 20262011 PMAQI
6th Jul 20262012 AMAQI
6th Jul 2026261 AMAQI
6th Jul 2026282 AMAQI
6th Jul 2026223 AMAQI
6th Jul 2026184 AMAQI

25°C16/33°C

6th Jul 2026145 AMAQI
6th Jul 2026126 AMAQI
6th Jul 2026107 AMAQI
6th Jul 2026128 AMAQI
6th Jul 2026149 AMAQI
6th Jul 20261510 AMAQI
6th Jul 20261711 AMAQI
6th Jul 20261812 PMAQI
6th Jul 2026161 PMAQI
6th Jul 2026142 PMAQI
6th Jul 2026123 PMAQI
6th Jul 2026104 PMAQI
6th Jul 2026115 PMAQI
6th Jul 2026126 PMAQI
6th Jul 2026147 PMAQI
6th Jul 2026148 PMAQI
6th Jul 2026159 PMAQI
6th Jul 20261610 PMAQI
6th Jul 20261611 PMAQI
7th Jul 20261412 AMAQI
7th Jul 2026131 AMAQI
7th Jul 2026102 AMAQI
7th Jul 202693 AMAQI
7th Jul 2026104 AMAQI

24°C15/32°C

7th Jul 2026125 AMAQI
7th Jul 2026126 AMAQI
7th Jul 2026147 AMAQI
7th Jul 2026148 AMAQI
7th Jul 2026129 AMAQI
7th Jul 20261510 AMAQI
7th Jul 20261611 AMAQI
7th Jul 20261512 PMAQI
7th Jul 2026161 PMAQI
7th Jul 2026132 PMAQI
7th Jul 2026143 PMAQI
7th Jul 2026184 PMAQI
7th Jul 2026205 PMAQI
7th Jul 2026166 PMAQI
7th Jul 2026147 PMAQI
7th Jul 2026168 PMAQI
7th Jul 2026169 PMAQI
7th Jul 20261410 PMAQI
7th Jul 20261111 PMAQI
8th Jul 20261112 AMAQI
8th Jul 2026141 AMAQI
8th Jul 2026122 AMAQI
8th Jul 2026103 AMAQI
8th Jul 2026104 AMAQI

24°C16/34°C

8th Jul 2026145 AMAQI
8th Jul 2026166 AMAQI
8th Jul 202697 AMAQI
8th Jul 2026108 AMAQI
8th Jul 2026109 AMAQI
8th Jul 20261010 AMAQI
8th Jul 2026911 AMAQI
8th Jul 20261012 PMAQI
8th Jul 2026121 PMAQI
8th Jul 2026102 PMAQI
8th Jul 2026103 PMAQI
8th Jul 2026144 PMAQI
8th Jul 2026165 PMAQI
8th Jul 2026166 PMAQI
8th Jul 2026207 PMAQI
8th Jul 2026248 PMAQI
8th Jul 2026179 PMAQI
8th Jul 20261210 PMAQI
8th Jul 20261011 PMAQI
9th Jul 20261212 AMAQI
9th Jul 2026101 AMAQI
9th Jul 2026102 AMAQI
9th Jul 2026103 AMAQI
9th Jul 2026104 AMAQI

23°C14/32°C

9th Jul 202695 AMAQI
9th Jul 2026206 AMAQI
9th Jul 2026287 AMAQI
9th Jul 2026208 AMAQI
9th Jul 2026109 AMAQI
9th Jul 2026910 AMAQI
9th Jul 20261011 AMAQI
9th Jul 2026912 PMAQI
9th Jul 202691 PMAQI
9th Jul 202692 PMAQI
9th Jul 202683 PMAQI
9th Jul 2026104 PMAQI
9th Jul 2026115 PMAQI
9th Jul 2026106 PMAQI
9th Jul 2026217 PMAQI
9th Jul 2026308 PMAQI
9th Jul 2026209 PMAQI
9th Jul 20261210 PMAQI
9th Jul 20261711 PMAQI
10th Jul 20261012 AMAQI
10th Jul 2026121 AMAQI
10th Jul 2026112 AMAQI
10th Jul 2026123 AMAQI
10th Jul 2026104 AMAQI

21°C13/30°C

10th Jul 202695 AMAQI
10th Jul 202696 AMAQI
10th Jul 2026227 AMAQI
10th Jul 2026268 AMAQI
10th Jul 2026149 AMAQI
10th Jul 20261610 AMAQI
10th Jul 20261411 AMAQI
10th Jul 20261412 PMAQI
10th Jul 2026141 PMAQI
10th Jul 2026132 PMAQI
10th Jul 2026133 PMAQI
10th Jul 2026144 PMAQI
10th Jul 2026145 PMAQI
10th Jul 2026136 PMAQI
10th Jul 2026117 PMAQI
10th Jul 2026108 PMAQI
10th Jul 2026109 PMAQI
10th Jul 2026910 PMAQI
10th Jul 2026911 PMAQI
11th Jul 20261012 AMAQI
11th Jul 2026111 AMAQI
11th Jul 2026102 AMAQI
11th Jul 2026123 AMAQI
11th Jul 2026144 AMAQI

24°C14/33°C

11th Jul 2026125 AMAQI
11th Jul 2026106 AMAQI
11th Jul 2026127 AMAQI
11th Jul 2026108 AMAQI
11th Jul 2026129 AMAQI
11th Jul 20261410 AMAQI
11th Jul 20261611 AMAQI
11th Jul 20261612 PMAQI
11th Jul 2026141 PMAQI
11th Jul 2026122 PMAQI
11th Jul 2026123 PMAQI
11th Jul 2026124 PMAQI
11th Jul 2026125 PMAQI
11th Jul 2026126 PMAQI
11th Jul 2026117 PMAQI
11th Jul 2026138 PMAQI
11th Jul 2026129 PMAQI
11th Jul 2026910 PMAQI
11th Jul 20261211 PMAQI
12th Jul 20261412 AMAQI
12th Jul 2026141 AMAQI
12th Jul 2026142 AMAQI
12th Jul 2026143 AMAQI
12th Jul 2026144 AMAQI

27°C16/36°C

12th Jul 2026145 AMAQI
12th Jul 2026146 AMAQI
12th Jul 2026127 AMAQI
12th Jul 2026128 AMAQI
12th Jul 2026129 AMAQI
12th Jul 20261410 AMAQI
12th Jul 20261411 AMAQI
12th Jul 20261612 PMAQI
12th Jul 2026181 PMAQI
12th Jul 2026162 PMAQI
12th Jul 2026163 PMAQI
12th Jul 2026134 PMAQI
12th Jul 2026105 PMAQI
12th Jul 2026116 PMAQI
12th Jul 2026127 PMAQI
12th Jul 2026128 PMAQI
12th Jul 2026129 PMAQI
12th Jul 20261410 PMAQI
12th Jul 20261811 PMAQI
13th Jul 20261812 AMAQI
13th Jul 2026151 AMAQI
13th Jul 2026132 AMAQI
13th Jul 2026113 AMAQI
13th Jul 2026124 AMAQI

29°C17/38°C

13th Jul 2026135 AMAQI
13th Jul 2026126 AMAQI
13th Jul 2026127 AMAQI
13th Jul 2026148 AMAQI
13th Jul 2026169 AMAQI
13th Jul 20261410 AMAQI
13th Jul 20261411 AMAQI
13th Jul 20261612 PMAQI
13th Jul 2026171 PMAQI
13th Jul 2026142 PMAQI
13th Jul 2026143 PMAQI
13th Jul 2026124 PMAQI
13th Jul 2026125 PMAQI
13th Jul 2026116 PMAQI
13th Jul 2026127 PMAQI
13th Jul 2026128 PMAQI
13th Jul 2026139 PMAQI
13th Jul 20261610 PMAQI
13th Jul 20261811 PMAQI
14th Jul 20261912 AMAQI
14th Jul 2026201 AMAQI
14th Jul 2026162 AMAQI
14th Jul 2026163 AMAQI
14th Jul 2026154 AMAQI

28°C17/37°C

14th Jul 2026145 AMAQI
14th Jul 2026126 AMAQI
14th Jul 2026127 AMAQI
14th Jul 2026138 AMAQI
14th Jul 2026169 AMAQI
14th Jul 20261610 AMAQI
14th Jul 20261811 AMAQI
14th Jul 20261912 PMAQI
14th Jul 2026201 PMAQI
14th Jul 2026182 PMAQI
14th Jul 2026183 PMAQI
14th Jul 2026144 PMAQI
14th Jul 2026125 PMAQI
14th Jul 2026126 PMAQI
14th Jul 2026147 PMAQI
14th Jul 2026128 PMAQI
14th Jul 2026149 PMAQI
14th Jul 20261610 PMAQI
14th Jul 20261611 PMAQI
15th Jul 20261612 AMAQI
15th Jul 2026161 AMAQI
15th Jul 2026202 AMAQI
15th Jul 2026193 AMAQI
15th Jul 2026164 AMAQI

28°C17/36°C

15th Jul 2026165 AMAQI
15th Jul 2026206 AMAQI
15th Jul 2026207 AMAQI
15th Jul 2026188 AMAQI
15th Jul 2026209 AMAQI
15th Jul 20261810 AMAQI
15th Jul 20262011 AMAQI
15th Jul 20262012 PMAQI
15th Jul 2026221 PMAQI
15th Jul 2026222 PMAQI
15th Jul 2026223 PMAQI
15th Jul 2026194 PMAQI
15th Jul 2026185 PMAQI
15th Jul 2026156 PMAQI
15th Jul 2026137 PMAQI
15th Jul 2026168 PMAQI
15th Jul 2026229 PMAQI
15th Jul 20262410 PMAQI
15th Jul 20262411 PMAQI
16th Jul 20262012 AMAQI
16th Jul 2026181 AMAQI
16th Jul 2026162 AMAQI
16th Jul 2026163 AMAQI
16th Jul 2026144 AMAQI

26°C15/34°C

16th Jul 2026145 AMAQI
16th Jul 2026146 AMAQI
16th Jul 2026147 AMAQI
16th Jul 2026168 AMAQI
16th Jul 2026149 AMAQI
16th Jul 20261610 AMAQI
16th Jul 20261811 AMAQI
16th Jul 20261812 PMAQI
16th Jul 2026191 PMAQI
16th Jul 2026222 PMAQI
16th Jul 2026193 PMAQI
16th Jul 2026184 PMAQI
16th Jul 2026165 PMAQI
16th Jul 2026166 PMAQI
16th Jul 2026177 PMAQI
16th Jul 2026188 PMAQI
16th Jul 2026169 PMAQI
16th Jul 20261510 PMAQI
16th Jul 20261711 PMAQI
17th Jul 20261612 AMAQI
17th Jul 2026161 AMAQI
17th Jul 2026202 AMAQI
17th Jul 2026273 AMAQI
17th Jul 2026384 AMAQI

25°C14/34°C

17th Jul 2026385 AMAQI
17th Jul 2026366 AMAQI
17th Jul 2026387 AMAQI
17th Jul 2026298 AMAQI
17th Jul 2026299 AMAQI
17th Jul 20262910 AMAQI
17th Jul 20262711 AMAQI
17th Jul 20262912 PMAQI
17th Jul 2026331 PMAQI
17th Jul 2026292 PMAQI
17th Jul 2026253 PMAQI
17th Jul 2026254 PMAQI
17th Jul 2026335 PMAQI
17th Jul 2026316 PMAQI
17th Jul 2026277 PMAQI
17th Jul 2026278 PMAQI
17th Jul 2026279 PMAQI
17th Jul 20262510 PMAQI
17th Jul 20262911 PMAQI
18th Jul 20263312 AMAQI
18th Jul 2026311 AMAQI
18th Jul 2026292 AMAQI
18th Jul 2026383 AMAQI
18th Jul 2026334 AMAQI

26°C16/34°C

18th Jul 2026335 AMAQI
18th Jul 2026336 AMAQI
18th Jul 2026337 AMAQI
18th Jul 2026338 AMAQI
18th Jul 2026339 AMAQI
18th Jul 20262910 AMAQI
18th Jul 20262711 AMAQI
18th Jul 20263312 PMAQI
18th Jul 2026271 PMAQI
18th Jul 2026272 PMAQI
18th Jul 2026273 PMAQI
18th Jul 2026274 PMAQI
18th Jul 2026345 PMAQI
18th Jul 2026346 PMAQI
18th Jul 2026317 PMAQI
18th Jul 2026298 PMAQI
18th Jul 2026299 PMAQI
18th Jul 20263410 PMAQI
18th Jul 20262511 PMAQI
19th Jul 20263312 AMAQI
19th Jul 2026291 AMAQI
19th Jul 2026272 AMAQI
19th Jul 2026293 AMAQI
19th Jul 2026344 AMAQI

27°C17/35°C

19th Jul 2026285 AMAQI
19th Jul 2026316 AMAQI
19th Jul 2026197 AMAQI
19th Jul 2026348 AMAQI
19th Jul 2026259 AMAQI
19th Jul 20263210 AMAQI
19th Jul 20263811 AMAQI
19th Jul 20262712 PMAQI
19th Jul 2026271 PMAQI
19th Jul 2026292 PMAQI
19th Jul 2026383 PMAQI
19th Jul 2026304 PMAQI
19th Jul 2026325 PMAQI
19th Jul 2026286 PMAQI
19th Jul 2026317 PMAQI
19th Jul 2026298 PMAQI
19th Jul 2026279 PMAQI
19th Jul 20262510 PMAQI
19th Jul 20262511 PMAQI
20th Jul 20265112 AMAQI
20th Jul 2026461 AMAQI
20th Jul 2026502 AMAQI
20th Jul 2026523 AMAQI
20th Jul 2026524 AMAQI

28°C18/36°C

20th Jul 2026425 AMAQI
20th Jul 2026386 AMAQI
20th Jul 2026347 AMAQI
20th Jul 2026258 AMAQI
20th Jul 2026299 AMAQI
20th Jul 20263410 AMAQI
20th Jul 20262511 AMAQI
20th Jul 20263412 PMAQI
20th Jul 2026421 PMAQI
20th Jul 2026442 PMAQI
20th Jul 2026463 PMAQI
20th Jul 2026404 PMAQI
20th Jul 2026425 PMAQI
20th Jul 2026406 PMAQI
20th Jul 2026407 PMAQI
20th Jul 2026408 PMAQI
20th Jul 20264010 PMAQI
20th Jul 20264611 PMAQI
21st Jul 20264412 AMAQI
21st Jul 2026341 AMAQI
21st Jul 2026272 AMAQI
21st Jul 2026253 AMAQI
21st Jul 2026274 AMAQI

27°C17/36°C

21st Jul 2026345 AMAQI
21st Jul 2026366 AMAQI
21st Jul 2026337 AMAQI
21st Jul 2026338 AMAQI
21st Jul 2026369 AMAQI
21st Jul 20263810 AMAQI
21st Jul 20264011 AMAQI
21st Jul 20264012 PMAQI
21st Jul 2026401 PMAQI
21st Jul 2026402 PMAQI
21st Jul 2026363 PMAQI
21st Jul 2026314 PMAQI
21st Jul 2026295 PMAQI
21st Jul 2026276 PMAQI
21st Jul 2026257 PMAQI
21st Jul 2026278 PMAQI
21st Jul 2026279 PMAQI
21st Jul 20262510 PMAQI
21st Jul 20262511 PMAQI
22nd Jul 20262912 AMAQI
22nd Jul 2026361 AMAQI
22nd Jul 2026402 AMAQI
22nd Jul 2026343 AMAQI
22nd Jul 2026254 AMAQI

24°C17/32°C

22nd Jul 2026325 AMAQI
22nd Jul 2026366 AMAQI
22nd Jul 2026347 AMAQI
22nd Jul 2026338 AMAQI
22nd Jul 2026369 AMAQI
22nd Jul 20263310 AMAQI
22nd Jul 20263111 AMAQI
22nd Jul 20262512 PMAQI
22nd Jul 2026291 PMAQI
22nd Jul 2026292 PMAQI
22nd Jul 2026333 PMAQI
22nd Jul 2026404 PMAQI
22nd Jul 2026385 PMAQI
22nd Jul 2026386 PMAQI
22nd Jul 2026367 PMAQI
22nd Jul 2026368 PMAQI
22nd Jul 2026319 PMAQI
22nd Jul 20263310 PMAQI
22nd Jul 20263811 PMAQI
23rd Jul 20263112 AMAQI
23rd Jul 2026331 AMAQI
23rd Jul 2026332 AMAQI
23rd Jul 2026333 AMAQI
23rd Jul 2026294 AMAQI

25°C19/32°C

23rd Jul 2026255 AMAQI
23rd Jul 2026276 AMAQI
23rd Jul 2026367 AMAQI
23rd Jul 2026368 AMAQI
23rd Jul 2026349 AMAQI
23rd Jul 20263610 AMAQI
23rd Jul 20263111 AMAQI
23rd Jul 20263312 PMAQI
23rd Jul 2026251 PMAQI
23rd Jul 2026252 PMAQI
23rd Jul 2026313 PMAQI
23rd Jul 2026274 PMAQI
23rd Jul 2026255 PMAQI
23rd Jul 2026256 PMAQI
23rd Jul 2026257 PMAQI
23rd Jul 2026298 PMAQI
23rd Jul 2026299 PMAQI
23rd Jul 20263110 PMAQI
23rd Jul 20263311 PMAQI
24th Jul 20262912 AMAQI
24th Jul 2026231 AMAQI
24th Jul 2026342 AMAQI
24th Jul 2026363 AMAQI
24th Jul 2026364 AMAQI

24°C18/30°C

24th Jul 2026365 AMAQI
24th Jul 2026336 AMAQI
24th Jul 2026367 AMAQI
24th Jul 2026308 AMAQI
24th Jul 2026329 AMAQI
24th Jul 20263310 AMAQI
24th Jul 20262911 AMAQI
24th Jul 20263312 PMAQI
24th Jul 2026331 PMAQI
24th Jul 2026282 PMAQI
24th Jul 2026263 PMAQI
24th Jul 2026274 PMAQI
24th Jul 2026275 PMAQI
24th Jul 2026296 PMAQI
24th Jul 2026427 PMAQI
24th Jul 2026528 PMAQI
24th Jul 2026429 PMAQI
24th Jul 20264710 PMAQI
24th Jul 20264511 PMAQI
25th Jul 20264212 AMAQI
25th Jul 2026321 AMAQI
25th Jul 2026292 AMAQI
25th Jul 2026343 AMAQI
25th Jul 2026344 AMAQI

27°C18/35°C

25th Jul 2026355 AMAQI
25th Jul 2026336 AMAQI
25th Jul 2026447 AMAQI
25th Jul 2026408 AMAQI
25th Jul 2026549 AMAQI
25th Jul 20263310 AMAQI
25th Jul 20265311 AMAQI
25th Jul 20264612 PMAQI
25th Jul 2026641 PMAQI
25th Jul 2026472 PMAQI
25th Jul 2026613 PMAQI
25th Jul 2026524 PMAQI
25th Jul 2026625 PMAQI
25th Jul 2026716 PMAQI
25th Jul 2026707 PMAQI
25th Jul 2026468 PMAQI
25th Jul 2026449 PMAQI
25th Jul 20264610 PMAQI
25th Jul 20263811 PMAQI
26th Jul 20263612 AMAQI
26th Jul 2026521 AMAQI
26th Jul 2026582 AMAQI
26th Jul 2026333 AMAQI
26th Jul 2026364 AMAQI

29°C21/37°C

26th Jul 2026255 AMAQI
26th Jul 2026316 AMAQI
26th Jul 2026337 AMAQI
26th Jul 2026318 AMAQI
26th Jul 2026389 AMAQI
26th Jul 20262510 AMAQI
26th Jul 20263811 AMAQI
26th Jul 20262512 PMAQI
26th Jul 2026421 PMAQI
26th Jul 2026422 PMAQI
26th Jul 2026523 PMAQI
26th Jul 2026504 PMAQI
26th Jul 2026445 PMAQI
26th Jul 2026196 PMAQI
26th Jul 2026247 PMAQI
26th Jul 2026588 PMAQI
26th Jul 2026369 PMAQI
26th Jul 20266510 PMAQI
26th Jul 20266111 PMAQI
27th Jul 20264212 AMAQI
27th Jul 2026381 AMAQI
27th Jul 2026382 AMAQI
27th Jul 2026343 AMAQI
27th Jul 2026284 AMAQI

30°C21/38°C

27th Jul 2026345 AMAQI
27th Jul 2026386 AMAQI
27th Jul 2026527 AMAQI
27th Jul 2026258 AMAQI
27th Jul 2026359 AMAQI
27th Jul 20264210 AMAQI
27th Jul 20264211 AMAQI
27th Jul 20262712 PMAQI
27th Jul 2026341 PMAQI
27th Jul 2026502 PMAQI
27th Jul 2026453 PMAQI
27th Jul 2026504 PMAQI
27th Jul 2026315 PMAQI
27th Jul 2026196 PMAQI
27th Jul 2026197 PMAQI
27th Jul 2026378 PMAQI
27th Jul 2026329 PMAQI
27th Jul 20262510 PMAQI
27th Jul 20262511 PMAQI
28th Jul 20263012 AMAQI
28th Jul 2026461 AMAQI
28th Jul 2026292 AMAQI
28th Jul 2026293 AMAQI
28th Jul 2026274 AMAQI

27°C20/35°C

28th Jul 2026275 AMAQI
28th Jul 2026296 AMAQI
28th Jul 2026257 AMAQI
28th Jul 2026318 AMAQI
28th Jul 2026299 AMAQI
28th Jul 20263110 AMAQI
28th Jul 20263311 AMAQI
28th Jul 20263612 PMAQI
28th Jul 2026481 PMAQI
28th Jul 2026492 PMAQI
28th Jul 2026443 PMAQI
28th Jul 2026384 PMAQI
28th Jul 2026255 PMAQI
28th Jul 2026346 PMAQI
28th Jul 2026237 PMAQI
28th Jul 2026278 PMAQI
28th Jul 2026299 PMAQI
28th Jul 20262810 PMAQI
28th Jul 20262511 PMAQI
29th Jul 20262712 AMAQI
29th Jul 2026311 AMAQI
29th Jul 2026292 AMAQI
29th Jul 2026293 AMAQI
29th Jul 2026294 AMAQI

26°C19/34°C

29th Jul 2026505 AMAQI
29th Jul 2026516 AMAQI
29th Jul 2026327 AMAQI
29th Jul 2026368 AMAQI
29th Jul 2026289 AMAQI
29th Jul 20262710 AMAQI
29th Jul 20262911 AMAQI
29th Jul 20263112 PMAQI
29th Jul 2026291 PMAQI
29th Jul 2026342 PMAQI
29th Jul 2026383 PMAQI
29th Jul 2026314 PMAQI
29th Jul 2026315 PMAQI
29th Jul 2026276 PMAQI
29th Jul 2026347 PMAQI
29th Jul 2026348 PMAQI
29th Jul 2026239 PMAQI
29th Jul 20263810 PMAQI
29th Jul 20262911 PMAQI
30th Jul 20263412 AMAQI
30th Jul 2026361 AMAQI
30th Jul 2026362 AMAQI
30th Jul 2026323 AMAQI
30th Jul 2026314 AMAQI

26°C18/34°C

30th Jul 2026405 AMAQI
30th Jul 2026386 AMAQI
30th Jul 2026347 AMAQI
30th Jul 2026348 AMAQI
30th Jul 2026279 AMAQI
30th Jul 20262710 AMAQI
30th Jul 20264011 AMAQI
30th Jul 20264812 PMAQI
30th Jul 2026291 PMAQI
30th Jul 2026362 PMAQI
30th Jul 2026323 PMAQI
30th Jul 2026274 PMAQI
30th Jul 2026275 PMAQI
30th Jul 2026296 PMAQI
30th Jul 2026257 PMAQI
30th Jul 2026348 PMAQI
30th Jul 2026319 PMAQI
30th Jul 20263410 PMAQI
30th Jul 20262511 PMAQI
31st Jul 20262712 AMAQI
31st Jul 2026251 AMAQI
31st Jul 2026252 AMAQI
31st Jul 2026273 AMAQI
31st Jul 2026254 AMAQI

25°C19/33°C

31st Jul 2026275 AMAQI
31st Jul 2026256 AMAQI
31st Jul 2026257 AMAQI
31st Jul 2026258 AMAQI
31st Jul 2026279 AMAQI
31st Jul 20262510 AMAQI
31st Jul 20262111 AMAQI
31st Jul 20262712 PMAQI
31st Jul 2026211 PMAQI
31st Jul 2026252 PMAQI
31st Jul 2026253 PMAQI
31st Jul 2026254 PMAQI
31st Jul 2026255 PMAQI
31st Jul 2026296 PMAQI
31st Jul 2026277 PMAQI
31st Jul 2026258 PMAQI
31st Jul 2026259 PMAQI
31st Jul 20262910 PMAQI
31st Jul 20263311 PMAQI
1st Aug 20262912 AMAQI
1st Aug 2026311 AMAQI
1st Aug 2026382 AMAQI
1st Aug 2026313 AMAQI
1st Aug 2026334 AMAQI

24°C15/34°C

1st Aug 2026315 AMAQI
1st Aug 2026296 AMAQI
1st Aug 2026337 AMAQI
1st Aug 2026298 AMAQI
1st Aug 2026279 AMAQI
1st Aug 20262510 AMAQI
1st Aug 20262511 AMAQI
1st Aug 20262512 PMAQI
1st Aug 2026311 PMAQI
1st Aug 2026272 PMAQI
1st Aug 2026253 PMAQI
1st Aug 2026294 PMAQI
1st Aug 2026275 PMAQI
1st Aug 2026296 PMAQI
1st Aug 2026257 PMAQI
1st Aug 2026258 PMAQI
1st Aug 2026259 PMAQI
1st Aug 20262510 PMAQI
1st Aug 20262911 PMAQI
2nd Aug 20263312 AMAQI
2nd Aug 2026361 AMAQI
2nd Aug 2026382 AMAQI
2nd Aug 2026333 AMAQI
2nd Aug 2026344 AMAQI

26°C16/36°C

2nd Aug 2026295 AMAQI
2nd Aug 2026236 AMAQI
2nd Aug 2026277 AMAQI
2nd Aug 2026308 AMAQI
2nd Aug 2026429 AMAQI
2nd Aug 20264810 AMAQI
2nd Aug 20265111 AMAQI
2nd Aug 20264912 PMAQI
2nd Aug 2026421 PMAQI
2nd Aug 2026402 PMAQI
2nd Aug 2026383 PMAQI
2nd Aug 2026384 PMAQI
2nd Aug 2026425 PMAQI
2nd Aug 2026426 PMAQI
2nd Aug 2026407 PMAQI
2nd Aug 2026408 PMAQI
2nd Aug 2026409 PMAQI
2nd Aug 20264710 PMAQI
2nd Aug 20264011 PMAQI
3rd Aug 20262912 AMAQI
3rd Aug 2026291 AMAQI
3rd Aug 2026322 AMAQI
3rd Aug 2026333 AMAQI
3rd Aug 2026334 AMAQI

29°C20/38°C

3rd Aug 2026335 AMAQI
5 AM
3rd Aug 2026336 AMAQI
3rd Aug 2026387 AMAQI
3rd Aug 2026428 AMAQI
3rd Aug 2026489 AMAQI
3rd Aug 20266010 AMAQI
3rd Aug 20267211 AMAQI
3rd Aug 20268212 PMAQI
12 PM
3rd Aug 2026871 PMAQI
3rd Aug 2026802 PMAQI
3rd Aug 2026763 PMAQI
3rd Aug 2026734 PMAQI
3rd Aug 2026745 PMAQI
3rd Aug 2026786 PMAQI
3rd Aug 2026747 PMAQI
3rd Aug 2026728 PMAQI
8 PM
3rd Aug 2026689 PMAQI
3rd Aug 20266210 PMAQI
3rd Aug 20265511 PMAQI
12 AM
4 AM

22°C14/27°C

Day time
Avg. Highest Time
1 PM - 3 PM

29AQI

3 hours / Day
90 hours / Month
Avg. Lowest Time
5 AM

25AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 PM to 3 PM (Avg. 29), while the lowest AQI was between 5 AM to 5 AM (Avg. 25).
Night time
Avg. Highest Time
10 PM

28AQI

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

25AQI

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. 28), while the lowest AQI was between 4 AM to 4 AM (Avg. 25).

2026 Days Vs Air Quality

Casper, Wyoming, United States

2026

100%

211

0.4%

1

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

Good
211 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 2026, 100% of 215 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

Casper, Wyoming, 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
27AQI (US)
2nd January 2026
14AQI (US)
3rd January 2026
16AQI (US)
4th January 2026
16AQI (US)
5th January 2026
28AQI (US)
6th January 2026
16AQI (US)
7th January 2026
18AQI (US)
8th January 2026
16AQI (US)
9th January 2026
14AQI (US)
10th January 2026
20AQI (US)
11th January 2026
24AQI (US)
12th January 2026
30AQI (US)
13th January 2026
18AQI (US)
14th January 2026
16AQI (US)
15th January 2026
26AQI (US)
16th January 2026
21AQI (US)
17th January 2026
15AQI (US)
18th January 2026
16AQI (US)
19th January 2026
16AQI (US)
20th January 2026
17AQI (US)
21st January 2026
16AQI (US)
22nd January 2026
26AQI (US)
23rd January 2026
37AQI (US)
24th January 2026
39AQI (US)
25th January 2026
34AQI (US)
26th January 2026
25AQI (US)
27th January 2026
24AQI (US)
28th January 2026
22AQI (US)
29th January 2026
39AQI (US)
30th January 2026
33AQI (US)
31st January 2026
30AQI (US)
1st February 2026
23AQI (US)
2nd February 2026
22AQI (US)
3rd February 2026
30AQI (US)
4th February 2026
25AQI (US)
5th February 2026
24AQI (US)
6th February 2026
21AQI (US)
7th February 2026
22AQI (US)
8th February 2026
19AQI (US)
9th February 2026
25AQI (US)
10th February 2026
30AQI (US)
11th February 2026
26AQI (US)
12th February 2026
29AQI (US)
13th February 2026
32AQI (US)
14th February 2026
30AQI (US)
15th February 2026
26AQI (US)
16th February 2026
27AQI (US)
17th February 2026
23AQI (US)
18th February 2026
29AQI (US)
19th February 2026
32AQI (US)
20th February 2026
30AQI (US)
21st February 2026
28AQI (US)
22nd February 2026
23AQI (US)
23rd February 2026
25AQI (US)
24th February 2026
30AQI (US)
25th February 2026
27AQI (US)
26th February 2026
24AQI (US)
27th February 2026
24AQI (US)
28th February 2026
23AQI (US)
1st March 2026
31AQI (US)
2nd March 2026
33AQI (US)
3rd March 2026
25AQI (US)
4th March 2026
25AQI (US)
5th March 2026
23AQI (US)
6th March 2026
33AQI (US)
7th March 2026
29AQI (US)
8th March 2026
30AQI (US)
9th March 2026
20AQI (US)
10th March 2026
18AQI (US)
11th March 2026
23AQI (US)
12th March 2026
30AQI (US)
13th March 2026
27AQI (US)
14th March 2026
28AQI (US)
15th March 2026
24AQI (US)
16th March 2026
24AQI (US)
17th March 2026
25AQI (US)
18th March 2026
19AQI (US)
19th March 2026
22AQI (US)
20th March 2026
24AQI (US)
21st March 2026
21AQI (US)
22nd March 2026
17AQI (US)
23rd March 2026
16AQI (US)
24th March 2026
13AQI (US)
25th March 2026
22AQI (US)
26th March 2026
16AQI (US)
27th March 2026
16AQI (US)
28th March 2026
15AQI (US)
29th March 2026
12AQI (US)
30th March 2026
14AQI (US)
31st March 2026
16AQI (US)
1st April 2026
22AQI (US)
2nd April 2026
16AQI (US)
3rd April 2026
29AQI (US)
4th April 2026
25AQI (US)
5th April 2026
20AQI (US)
6th April 2026
20AQI (US)
7th April 2026
16AQI (US)
8th April 2026
26AQI (US)
9th April 2026
19AQI (US)
10th April 2026
24AQI (US)
11th April 2026
18AQI (US)
12th April 2026
23AQI (US)
13th April 2026
23AQI (US)
14th April 2026
27AQI (US)
15th April 2026
18AQI (US)
16th April 2026
18AQI (US)
17th April 2026
18th April 2026
29AQI (US)
19th April 2026
23AQI (US)
20th April 2026
14AQI (US)
21st April 2026
17AQI (US)
22nd April 2026
23rd April 2026
21AQI (US)
24th April 2026
18AQI (US)
25th April 2026
28AQI (US)
26th April 2026
25AQI (US)
27th April 2026
26AQI (US)
28th April 2026
19AQI (US)
29th April 2026
17AQI (US)
30th April 2026
19AQI (US)
1st May 2026
17AQI (US)
2nd May 2026
16AQI (US)
3rd May 2026
15AQI (US)
4th May 2026
19AQI (US)
5th May 2026
18AQI (US)
6th May 2026
22AQI (US)
7th May 2026
17AQI (US)
8th May 2026
20AQI (US)
9th May 2026
10th May 2026
21AQI (US)
11th May 2026
17AQI (US)
12th May 2026
21AQI (US)
13th May 2026
19AQI (US)
14th May 2026
19AQI (US)
15th May 2026
17AQI (US)
16th May 2026
21AQI (US)
17th May 2026
20AQI (US)
18th May 2026
32AQI (US)
19th May 2026
28AQI (US)
20th May 2026
21AQI (US)
21st May 2026
26AQI (US)
22nd May 2026
24AQI (US)
23rd May 2026
25AQI (US)
24th May 2026
21AQI (US)
25th May 2026
16AQI (US)
26th May 2026
15AQI (US)
27th May 2026
13AQI (US)
28th May 2026
13AQI (US)
29th May 2026
14AQI (US)
30th May 2026
20AQI (US)
31st May 2026
27AQI (US)
1st June 2026
19AQI (US)
2nd June 2026
17AQI (US)
3rd June 2026
12AQI (US)
4th June 2026
17AQI (US)
5th June 2026
12AQI (US)
6th June 2026
14AQI (US)
7th June 2026
17AQI (US)
8th June 2026
15AQI (US)
9th June 2026
18AQI (US)
10th June 2026
14AQI (US)
11th June 2026
20AQI (US)
12th June 2026
17AQI (US)
13th June 2026
19AQI (US)
14th June 2026
23AQI (US)
15th June 2026
14AQI (US)
16th June 2026
16AQI (US)
17th June 2026
14AQI (US)
18th June 2026
15AQI (US)
19th June 2026
13AQI (US)
20th June 2026
18AQI (US)
21st June 2026
16AQI (US)
22nd June 2026
19AQI (US)
23rd June 2026
12AQI (US)
24th June 2026
17AQI (US)
25th June 2026
18AQI (US)
26th June 2026
18AQI (US)
27th June 2026
22AQI (US)
28th June 2026
20AQI (US)
29th June 2026
23AQI (US)
30th June 2026
24AQI (US)
1st July 2026
14AQI (US)
2nd July 2026
18AQI (US)
3rd July 2026
15AQI (US)
4th July 2026
13AQI (US)
5th July 2026
21AQI (US)
6th July 2026
16AQI (US)
7th July 2026
14AQI (US)
8th July 2026
13AQI (US)
9th July 2026
14AQI (US)
10th July 2026
13AQI (US)
11th July 2026
12AQI (US)
12th July 2026
14AQI (US)
13th July 2026
14AQI (US)
14th July 2026
16AQI (US)
15th July 2026
19AQI (US)
16th July 2026
17AQI (US)
17th July 2026
28AQI (US)
18th July 2026
31AQI (US)
19th July 2026
30AQI (US)
20th July 2026
41AQI (US)
21st July 2026
32AQI (US)
22nd July 2026
34AQI (US)
23rd July 2026
30AQI (US)
24th July 2026
34AQI (US)
25th July 2026
46AQI (US)
26th July 2026
40AQI (US)
27th July 2026
35AQI (US)
28th July 2026
32AQI (US)
29th July 2026
32AQI (US)
30th July 2026
33AQI (US)
31st July 2026
26AQI (US)
1st August 2026
28AQI (US)
2nd August 2026
38AQI (US)
3rd August 2026
57AQI (US)
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

23AQI (US)

26AQI (US)

22AQI (US)

21AQI (US)

20AQI (US)

17AQI (US)

24AQI (US)

41AQI (US)

No. of days

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

202622AQI (US)

31
28
31
28
30
30
31
2
1
211
1

Highest AQI (US) recorded in

August

41AQI (US)

Lowest AQI (US) recorded in

June

17AQI (US)

202525AQI (US)

31
28
31
30
31
30
31
31
27
3
31
30
31
362
3

Highest AQI (US) recorded in

July

32AQI (US)

Lowest AQI (US) recorded in

May

18AQI (US)

202432AQI (US)

30
29
31
30
31
30
25
6
30
1
29
1
25
6
30
31
351
14

Highest AQI (US) recorded in

July

45AQI (US)

Lowest AQI (US) recorded in

November

19AQI (US)

202332AQI (US)

30
28
31
30
27
3
1
30
30
31
28
2
31
29
31
356
5
1

Highest AQI (US) recorded in

May

40AQI (US)

Lowest AQI (US) recorded in

October

24AQI (US)

202231AQI (US)

30
22
31
30
31
30
24
3
24
5
31
30
30
316
5

Highest AQI (US) recorded in

July

37AQI (US)

Lowest AQI (US) recorded in

October

26AQI (US)

202135AQI (US)

30
28
31
30
31
28
2
21
10
16
13
2
24
6
31
30
31
331
31
2

Highest AQI (US) recorded in

August

57AQI (US)

Lowest AQI (US) recorded in

November

26AQI (US)

202033AQI (US)

13
20
18
30
31
27
4
23
4
3
28
2
30
31
251
10
3

Highest AQI (US) recorded in

September

46AQI (US)

Lowest AQI (US) recorded in

December

27AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2021(Avg.)
35AQI (US)
Least Polluted Year Recorded
2026(Avg.)
22AQI (US)

Casper's annual 2026 AQI (US) (22) shows an average percentage change of -29.001% (improved AQI (US)) compared to previous years: 2020 (33), 2021 (35), 2022 (31), 2023 (32), 2024 (32), 2025 (25).