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
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
31st Aug 2021
117AQILowest AQI recorded on
3rd Aug 2025
20AQISame Day Analysis (4th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 24 of Good air quality, showing improvement over 2024, 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 4th Aug - 5th Aug 2025
Casper, Wyoming, United States
AQI
Day
Night
.
5 AM4th Aug 2025
8 PM
4 AM5th Aug 2025
Day time
Avg. Highest Time
6PM4th Aug
32AQI
Avg. Lowest Time
8AM4th Aug
21AQI
Night time
Avg. Highest Time
11PM4th Aug
41AQI
Avg. Lowest Time
5AM4th Aug
23AQI
In the last 24 hours,
Casper's AQI reached its highest point of 41 at 11 PM during the Night, while the lowest point, 21, was recorded at 8 AM during the Day between 4th Aug and 5th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Casper, Wyoming, United States
JulAug
06th - 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 - 04th04th - 05th05th
Day
Night
6th Jul 2025225 AMAQI
6th Jul 2025226 AMAQI
6th Jul 2025217 AMAQI
6th Jul 2025218 AMAQI
6th Jul 2025209 AMAQI
6th Jul 20252310 AMAQI
6th Jul 20252511 AMAQI
6th Jul 20252712 PMAQI
6th Jul 2025241 PMAQI
6th Jul 2025242 PMAQI
6th Jul 2025243 PMAQI
6th Jul 2025254 PMAQI
6th Jul 2025245 PMAQI
6th Jul 2025256 PMAQI
6th Jul 2025257 PMAQI
6th Jul 2025258 PMAQI
6th Jul 2025269 PMAQI
6th Jul 20252610 PMAQI
6th Jul 20252811 PMAQI
7th Jul 20253212 AMAQI
7th Jul 2025301 AMAQI
7th Jul 2025292 AMAQI
7th Jul 2025263 AMAQI
7th Jul 2025304 AMAQI
22°C14/31°C
7th Jul 2025265 AMAQI
7th Jul 2025226 AMAQI
7th Jul 2025257 AMAQI
7th Jul 2025258 AMAQI
7th Jul 2025269 AMAQI
7th Jul 20252810 AMAQI
7th Jul 20252811 AMAQI
7th Jul 20252812 PMAQI
7th Jul 2025281 PMAQI
7th Jul 2025272 PMAQI
7th Jul 2025283 PMAQI
7th Jul 2025274 PMAQI
7th Jul 2025255 PMAQI
7th Jul 2025246 PMAQI
7th Jul 2025267 PMAQI
7th Jul 2025288 PMAQI
7th Jul 2025249 PMAQI
7th Jul 20252510 PMAQI
7th Jul 20252511 PMAQI
8th Jul 20252612 AMAQI
8th Jul 2025271 AMAQI
8th Jul 2025272 AMAQI
8th Jul 2025263 AMAQI
8th Jul 2025244 AMAQI
22°C11/30°C
8th Jul 2025215 AMAQI
8th Jul 2025236 AMAQI
8th Jul 2025227 AMAQI
8th Jul 2025228 AMAQI
8th Jul 2025229 AMAQI
8th Jul 20252310 AMAQI
8th Jul 20252611 AMAQI
8th Jul 20253012 PMAQI
8th Jul 2025321 PMAQI
8th Jul 2025282 PMAQI
8th Jul 2025313 PMAQI
8th Jul 2025294 PMAQI
8th Jul 2025265 PMAQI
8th Jul 2025236 PMAQI
8th Jul 2025227 PMAQI
8th Jul 2025228 PMAQI
8th Jul 2025229 PMAQI
8th Jul 20252610 PMAQI
8th Jul 20252611 PMAQI
9th Jul 20252512 AMAQI
9th Jul 2025241 AMAQI
9th Jul 2025262 AMAQI
9th Jul 2025283 AMAQI
9th Jul 2025284 AMAQI
25°C12/35°C
9th Jul 2025255 AMAQI
9th Jul 2025256 AMAQI
9th Jul 2025257 AMAQI
9th Jul 2025238 AMAQI
9th Jul 2025279 AMAQI
9th Jul 20253310 AMAQI
9th Jul 20253711 AMAQI
9th Jul 20253312 PMAQI
9th Jul 2025241 PMAQI
9th Jul 2025232 PMAQI
9th Jul 2025233 PMAQI
9th Jul 2025234 PMAQI
9th Jul 2025235 PMAQI
9th Jul 2025266 PMAQI
9th Jul 2025277 PMAQI
9th Jul 2025278 PMAQI
9th Jul 2025239 PMAQI
9th Jul 20252410 PMAQI
9th Jul 20252611 PMAQI
10th Jul 20252812 AMAQI
10th Jul 2025261 AMAQI
10th Jul 2025262 AMAQI
10th Jul 2025273 AMAQI
10th Jul 2025264 AMAQI
27°C14/37°C
10th Jul 2025265 AMAQI
10th Jul 2025266 AMAQI
10th Jul 2025287 AMAQI
10th Jul 2025288 AMAQI
10th Jul 2025269 AMAQI
10th Jul 20252710 AMAQI
10th Jul 20252811 AMAQI
10th Jul 20253212 PMAQI
10th Jul 2025311 PMAQI
10th Jul 2025322 PMAQI
10th Jul 2025303 PMAQI
10th Jul 2025284 PMAQI
10th Jul 2025285 PMAQI
10th Jul 2025246 PMAQI
10th Jul 2025287 PMAQI
10th Jul 2025258 PMAQI
10th Jul 2025289 PMAQI
10th Jul 20252710 PMAQI
10th Jul 20252611 PMAQI
11th Jul 20253112 AMAQI
11th Jul 2025321 AMAQI
11th Jul 2025322 AMAQI
11th Jul 2025383 AMAQI
11th Jul 2025394 AMAQI
23°C15/32°C
11th Jul 2025375 AMAQI
11th Jul 2025366 AMAQI
11th Jul 2025347 AMAQI
11th Jul 2025308 AMAQI
11th Jul 2025319 AMAQI
11th Jul 20253610 AMAQI
11th Jul 20253311 AMAQI
11th Jul 20253012 PMAQI
11th Jul 2025301 PMAQI
11th Jul 2025292 PMAQI
11th Jul 2025323 PMAQI
11th Jul 2025304 PMAQI
11th Jul 2025295 PMAQI
11th Jul 2025326 PMAQI
11th Jul 2025317 PMAQI
11th Jul 2025358 PMAQI
11th Jul 2025329 PMAQI
11th Jul 20253210 PMAQI
11th Jul 20253311 PMAQI
12th Jul 20253712 AMAQI
12th Jul 2025351 AMAQI
12th Jul 2025352 AMAQI
12th Jul 2025273 AMAQI
12th Jul 2025274 AMAQI
16°C12/20°C
12th Jul 2025285 AMAQI
12th Jul 2025376 AMAQI
12th Jul 2025267 AMAQI
12th Jul 2025258 AMAQI
12th Jul 2025279 AMAQI
12th Jul 20252510 AMAQI
12th Jul 20252711 AMAQI
12th Jul 20252612 PMAQI
12th Jul 2025291 PMAQI
12th Jul 2025322 PMAQI
12th Jul 2025343 PMAQI
12th Jul 2025344 PMAQI
12th Jul 2025345 PMAQI
12th Jul 2025326 PMAQI
12th Jul 2025307 PMAQI
12th Jul 2025318 PMAQI
12th Jul 2025279 PMAQI
12th Jul 20252610 PMAQI
12th Jul 20253011 PMAQI
13th Jul 20253212 AMAQI
13th Jul 2025331 AMAQI
13th Jul 2025332 AMAQI
13th Jul 2025313 AMAQI
13th Jul 2025324 AMAQI
20°C8/31°C
13th Jul 2025345 AMAQI
13th Jul 2025406 AMAQI
13th Jul 2025377 AMAQI
13th Jul 2025348 AMAQI
13th Jul 2025349 AMAQI
13th Jul 20253010 AMAQI
13th Jul 20253011 AMAQI
13th Jul 20253012 PMAQI
13th Jul 2025301 PMAQI
13th Jul 2025312 PMAQI
13th Jul 2025293 PMAQI
13th Jul 2025304 PMAQI
13th Jul 2025305 PMAQI
13th Jul 2025306 PMAQI
13th Jul 2025347 PMAQI
13th Jul 2025348 PMAQI
13th Jul 2025269 PMAQI
13th Jul 20252810 PMAQI
13th Jul 20253011 PMAQI
14th Jul 20252912 AMAQI
14th Jul 2025311 AMAQI
14th Jul 2025332 AMAQI
14th Jul 2025303 AMAQI
14th Jul 2025304 AMAQI
24°C11/34°C
14th Jul 2025265 AMAQI
14th Jul 2025246 AMAQI
14th Jul 2025247 AMAQI
14th Jul 2025278 AMAQI
14th Jul 2025289 AMAQI
14th Jul 20252910 AMAQI
14th Jul 20253611 AMAQI
14th Jul 20253712 PMAQI
14th Jul 2025361 PMAQI
14th Jul 2025322 PMAQI
14th Jul 2025283 PMAQI
14th Jul 2025284 PMAQI
14th Jul 2025295 PMAQI
14th Jul 2025276 PMAQI
14th Jul 2025297 PMAQI
14th Jul 2025328 PMAQI
14th Jul 2025339 PMAQI
14th Jul 20253110 PMAQI
14th Jul 20253111 PMAQI
15th Jul 20253012 AMAQI
15th Jul 2025321 AMAQI
15th Jul 2025332 AMAQI
15th Jul 2025293 AMAQI
15th Jul 2025304 AMAQI
25°C15/37°C
15th Jul 2025325 AMAQI
15th Jul 2025286 AMAQI
15th Jul 2025277 AMAQI
15th Jul 2025298 AMAQI
15th Jul 2025279 AMAQI
15th Jul 20253210 AMAQI
15th Jul 20253811 AMAQI
15th Jul 20253612 PMAQI
15th Jul 2025331 PMAQI
15th Jul 2025352 PMAQI
15th Jul 2025373 PMAQI
15th Jul 2025384 PMAQI
15th Jul 2025355 PMAQI
15th Jul 2025346 PMAQI
15th Jul 2025327 PMAQI
15th Jul 2025358 PMAQI
15th Jul 2025389 PMAQI
15th Jul 20253710 PMAQI
15th Jul 20254011 PMAQI
16th Jul 20254012 AMAQI
16th Jul 2025381 AMAQI
16th Jul 2025352 AMAQI
16th Jul 2025283 AMAQI
16th Jul 2025194 AMAQI
21°C13/29°C
16th Jul 2025185 AMAQI
16th Jul 2025206 AMAQI
16th Jul 2025227 AMAQI
16th Jul 2025228 AMAQI
16th Jul 2025249 AMAQI
16th Jul 20252510 AMAQI
16th Jul 20252411 AMAQI
16th Jul 20252312 PMAQI
16th Jul 2025231 PMAQI
16th Jul 2025252 PMAQI
16th Jul 2025283 PMAQI
16th Jul 2025304 PMAQI
16th Jul 2025305 PMAQI
16th Jul 2025346 PMAQI
16th Jul 2025287 PMAQI
16th Jul 2025288 PMAQI
16th Jul 2025279 PMAQI
16th Jul 20252710 PMAQI
16th Jul 20253011 PMAQI
17th Jul 20252912 AMAQI
17th Jul 2025281 AMAQI
17th Jul 2025282 AMAQI
17th Jul 2025323 AMAQI
17th Jul 2025304 AMAQI
19°C13/27°C
17th Jul 2025265 AMAQI
17th Jul 2025276 AMAQI
17th Jul 2025307 AMAQI
17th Jul 2025368 AMAQI
17th Jul 2025409 AMAQI
17th Jul 20254110 AMAQI
17th Jul 20254211 AMAQI
17th Jul 20254012 PMAQI
17th Jul 2025371 PMAQI
17th Jul 2025382 PMAQI
17th Jul 2025383 PMAQI
17th Jul 2025364 PMAQI
17th Jul 2025395 PMAQI
17th Jul 2025396 PMAQI
17th Jul 2025367 PMAQI
17th Jul 2025338 PMAQI
17th Jul 2025369 PMAQI
17th Jul 20253510 PMAQI
17th Jul 20253711 PMAQI
18th Jul 20253412 AMAQI
18th Jul 2025331 AMAQI
18th Jul 2025342 AMAQI
18th Jul 2025333 AMAQI
18th Jul 2025354 AMAQI
23°C12/34°C
18th Jul 2025375 AMAQI
18th Jul 2025436 AMAQI
18th Jul 2025427 AMAQI
18th Jul 2025388 AMAQI
18th Jul 2025449 AMAQI
18th Jul 20254610 AMAQI
18th Jul 20254311 AMAQI
18th Jul 20254412 PMAQI
18th Jul 2025481 PMAQI
18th Jul 2025522 PMAQI
18th Jul 2025463 PMAQI
18th Jul 2025424 PMAQI
18th Jul 2025425 PMAQI
18th Jul 2025426 PMAQI
18th Jul 2025427 PMAQI
18th Jul 2025428 PMAQI
18th Jul 2025429 PMAQI
18th Jul 20254210 PMAQI
18th Jul 20254211 PMAQI
19th Jul 20254012 AMAQI
19th Jul 2025381 AMAQI
19th Jul 2025362 AMAQI
19th Jul 2025353 AMAQI
19th Jul 2025314 AMAQI
23°C14/33°C
19th Jul 2025305 AMAQI
19th Jul 2025346 AMAQI
19th Jul 2025357 AMAQI
19th Jul 2025318 AMAQI
19th Jul 2025269 AMAQI
19th Jul 20252210 AMAQI
19th Jul 20252411 AMAQI
19th Jul 20252612 PMAQI
19th Jul 2025301 PMAQI
19th Jul 2025332 PMAQI
19th Jul 2025363 PMAQI
19th Jul 2025384 PMAQI
19th Jul 2025375 PMAQI
19th Jul 2025346 PMAQI
19th Jul 2025347 PMAQI
19th Jul 2025348 PMAQI
19th Jul 2025379 PMAQI
19th Jul 20253810 PMAQI
19th Jul 20253511 PMAQI
20th Jul 20253212 AMAQI
20th Jul 2025341 AMAQI
20th Jul 2025342 AMAQI
20th Jul 2025363 AMAQI
20th Jul 2025364 AMAQI
24°C13/33°C
20th Jul 2025325 AMAQI
20th Jul 2025286 AMAQI
20th Jul 2025307 AMAQI
20th Jul 2025318 AMAQI
20th Jul 2025309 AMAQI
20th Jul 20253010 AMAQI
20th Jul 20253311 AMAQI
20th Jul 20253312 PMAQI
20th Jul 2025361 PMAQI
20th Jul 2025382 PMAQI
20th Jul 2025383 PMAQI
20th Jul 2025364 PMAQI
20th Jul 2025355 PMAQI
20th Jul 2025346 PMAQI
20th Jul 2025337 PMAQI
20th Jul 2025328 PMAQI
20th Jul 2025289 PMAQI
20th Jul 20253210 PMAQI
20th Jul 20253311 PMAQI
21st Jul 20253412 AMAQI
21st Jul 2025351 AMAQI
21st Jul 2025332 AMAQI
21st Jul 2025323 AMAQI
21st Jul 2025274 AMAQI
25°C14/34°C
21st Jul 2025235 AMAQI
21st Jul 2025246 AMAQI
21st Jul 2025287 AMAQI
21st Jul 2025298 AMAQI
21st Jul 2025299 AMAQI
21st Jul 20253010 AMAQI
21st Jul 20253611 AMAQI
21st Jul 20253412 PMAQI
21st Jul 2025341 PMAQI
21st Jul 2025342 PMAQI
21st Jul 2025323 PMAQI
21st Jul 2025314 PMAQI
21st Jul 2025285 PMAQI
21st Jul 2025346 PMAQI
21st Jul 2025327 PMAQI
21st Jul 2025298 PMAQI
21st Jul 2025289 PMAQI
21st Jul 20252610 PMAQI
21st Jul 20252711 PMAQI
22nd Jul 20252912 AMAQI
22nd Jul 2025291 AMAQI
22nd Jul 2025312 AMAQI
22nd Jul 2025273 AMAQI
22nd Jul 2025264 AMAQI
25°C13/36°C
22nd Jul 2025245 AMAQI
22nd Jul 2025216 AMAQI
22nd Jul 2025247 AMAQI
22nd Jul 2025288 AMAQI
22nd Jul 2025309 AMAQI
22nd Jul 20253010 AMAQI
22nd Jul 20253411 AMAQI
22nd Jul 20253312 PMAQI
22nd Jul 2025321 PMAQI
22nd Jul 2025332 PMAQI
22nd Jul 2025323 PMAQI
22nd Jul 2025314 PMAQI
22nd Jul 2025285 PMAQI
22nd Jul 2025286 PMAQI
22nd Jul 2025277 PMAQI
22nd Jul 2025288 PMAQI
22nd Jul 2025279 PMAQI
22nd Jul 20252710 PMAQI
22nd Jul 20252911 PMAQI
23rd Jul 20253512 AMAQI
23rd Jul 2025361 AMAQI
23rd Jul 2025352 AMAQI
23rd Jul 2025433 AMAQI
23rd Jul 2025384 AMAQI
26°C17/33°C
23rd Jul 2025335 AMAQI
23rd Jul 2025366 AMAQI
23rd Jul 2025387 AMAQI
23rd Jul 2025358 AMAQI
23rd Jul 2025329 AMAQI
23rd Jul 20253210 AMAQI
23rd Jul 20253111 AMAQI
23rd Jul 20253212 PMAQI
23rd Jul 2025321 PMAQI
23rd Jul 2025322 PMAQI
23rd Jul 2025323 PMAQI
23rd Jul 2025314 PMAQI
23rd Jul 2025295 PMAQI
23rd Jul 2025286 PMAQI
23rd Jul 2025317 PMAQI
23rd Jul 2025308 PMAQI
23rd Jul 2025319 PMAQI
23rd Jul 20252910 PMAQI
23rd Jul 20252811 PMAQI
24th Jul 20252612 AMAQI
24th Jul 2025281 AMAQI
24th Jul 2025282 AMAQI
24th Jul 2025233 AMAQI
24th Jul 2025214 AMAQI
22°C17/31°C
24th Jul 2025215 AMAQI
24th Jul 2025216 AMAQI
24th Jul 2025167 AMAQI
24th Jul 2025168 AMAQI
24th Jul 2025189 AMAQI
24th Jul 20252510 AMAQI
24th Jul 20252611 AMAQI
24th Jul 20252412 PMAQI
24th Jul 2025191 PMAQI
24th Jul 2025212 PMAQI
24th Jul 2025253 PMAQI
24th Jul 2025284 PMAQI
24th Jul 2025275 PMAQI
24th Jul 2025266 PMAQI
24th Jul 2025247 PMAQI
24th Jul 2025248 PMAQI
24th Jul 2025269 PMAQI
24th Jul 20252610 PMAQI
24th Jul 20252511 PMAQI
25th Jul 20252812 AMAQI
25th Jul 2025301 AMAQI
25th Jul 2025302 AMAQI
25th Jul 2025313 AMAQI
25th Jul 2025404 AMAQI
22°C11/33°C
25th Jul 2025445 AMAQI
25th Jul 2025366 AMAQI
25th Jul 2025377 AMAQI
25th Jul 2025388 AMAQI
25th Jul 2025359 AMAQI
25th Jul 20253210 AMAQI
25th Jul 20253411 AMAQI
25th Jul 20253312 PMAQI
25th Jul 2025311 PMAQI
25th Jul 2025352 PMAQI
25th Jul 2025363 PMAQI
25th Jul 2025364 PMAQI
25th Jul 2025325 PMAQI
25th Jul 2025306 PMAQI
25th Jul 2025327 PMAQI
25th Jul 2025348 PMAQI
25th Jul 2025329 PMAQI
25th Jul 20253110 PMAQI
25th Jul 20253411 PMAQI
26th Jul 20253512 AMAQI
26th Jul 2025341 AMAQI
26th Jul 2025382 AMAQI
26th Jul 2025433 AMAQI
26th Jul 2025504 AMAQI
25°C14/34°C
26th Jul 2025425 AMAQI
26th Jul 2025346 AMAQI
26th Jul 2025337 AMAQI
26th Jul 2025388 AMAQI
26th Jul 2025409 AMAQI
26th Jul 20253810 AMAQI
26th Jul 20253911 AMAQI
26th Jul 20254212 PMAQI
26th Jul 2025431 PMAQI
26th Jul 2025432 PMAQI
26th Jul 2025453 PMAQI
26th Jul 2025424 PMAQI
26th Jul 2025445 PMAQI
26th Jul 2025416 PMAQI
26th Jul 2025417 PMAQI
26th Jul 2025408 PMAQI
26th Jul 2025349 PMAQI
26th Jul 20253410 PMAQI
26th Jul 20253511 PMAQI
27th Jul 20253812 AMAQI
27th Jul 2025411 AMAQI
27th Jul 2025412 AMAQI
27th Jul 2025433 AMAQI
27th Jul 2025424 AMAQI
24°C13/34°C
27th Jul 2025355 AMAQI
27th Jul 2025366 AMAQI
27th Jul 2025367 AMAQI
27th Jul 2025428 AMAQI
27th Jul 2025429 AMAQI
27th Jul 20253610 AMAQI
27th Jul 20253511 AMAQI
27th Jul 20254012 PMAQI
27th Jul 2025421 PMAQI
27th Jul 2025402 PMAQI
27th Jul 2025383 PMAQI
27th Jul 2025434 PMAQI
27th Jul 2025455 PMAQI
27th Jul 2025406 PMAQI
27th Jul 2025387 PMAQI
27th Jul 2025408 PMAQI
27th Jul 2025409 PMAQI
27th Jul 20254010 PMAQI
27th Jul 20253611 PMAQI
28th Jul 20253612 AMAQI
28th Jul 2025341 AMAQI
28th Jul 2025322 AMAQI
28th Jul 2025273 AMAQI
28th Jul 2025274 AMAQI
24°C11/35°C
28th Jul 2025345 AMAQI
28th Jul 2025366 AMAQI
28th Jul 2025347 AMAQI
28th Jul 2025368 AMAQI
28th Jul 2025399 AMAQI
28th Jul 20253710 AMAQI
28th Jul 20254111 AMAQI
28th Jul 20254412 PMAQI
28th Jul 2025401 PMAQI
28th Jul 2025402 PMAQI
28th Jul 2025403 PMAQI
28th Jul 2025394 PMAQI
28th Jul 2025375 PMAQI
28th Jul 2025346 PMAQI
28th Jul 2025347 PMAQI
28th Jul 2025348 PMAQI
28th Jul 2025329 PMAQI
28th Jul 20253210 PMAQI
28th Jul 20253811 PMAQI
29th Jul 20254012 AMAQI
29th Jul 2025421 AMAQI
29th Jul 2025452 AMAQI
29th Jul 2025423 AMAQI
29th Jul 2025454 AMAQI
24°C13/34°C
29th Jul 2025495 AMAQI
29th Jul 2025506 AMAQI
29th Jul 2025507 AMAQI
29th Jul 2025528 AMAQI
29th Jul 2025489 AMAQI
29th Jul 20254610 AMAQI
29th Jul 20254511 AMAQI
29th Jul 20254512 PMAQI
29th Jul 2025401 PMAQI
29th Jul 2025412 PMAQI
29th Jul 2025433 PMAQI
29th Jul 2025424 PMAQI
29th Jul 2025435 PMAQI
29th Jul 2025436 PMAQI
29th Jul 2025467 PMAQI
29th Jul 2025458 PMAQI
29th Jul 2025519 PMAQI
29th Jul 20255310 PMAQI
29th Jul 20255111 PMAQI
30th Jul 20254912 AMAQI
30th Jul 2025481 AMAQI
30th Jul 2025432 AMAQI
30th Jul 2025443 AMAQI
30th Jul 2025444 AMAQI
22°C14/32°C
30th Jul 2025365 AMAQI
30th Jul 2025346 AMAQI
30th Jul 2025357 AMAQI
30th Jul 2025328 AMAQI
30th Jul 2025339 AMAQI
30th Jul 20253310 AMAQI
30th Jul 20253411 AMAQI
30th Jul 20253212 PMAQI
30th Jul 2025321 PMAQI
30th Jul 2025312 PMAQI
30th Jul 2025303 PMAQI
30th Jul 2025304 PMAQI
30th Jul 2025305 PMAQI
30th Jul 2025306 PMAQI
30th Jul 2025307 PMAQI
30th Jul 2025308 PMAQI
30th Jul 2025349 PMAQI
30th Jul 20253410 PMAQI
30th Jul 20253611 PMAQI
31st Jul 20253712 AMAQI
31st Jul 2025401 AMAQI
31st Jul 2025372 AMAQI
31st Jul 2025343 AMAQI
31st Jul 2025314 AMAQI
20°C12/29°C
31st Jul 2025265 AMAQI
31st Jul 2025426 AMAQI
31st Jul 2025607 AMAQI
31st Jul 2025588 AMAQI
31st Jul 2025489 AMAQI
31st Jul 20254510 AMAQI
31st Jul 20254211 AMAQI
31st Jul 20253512 PMAQI
31st Jul 2025321 PMAQI
31st Jul 2025302 PMAQI
31st Jul 2025313 PMAQI
31st Jul 2025374 PMAQI
31st Jul 2025525 PMAQI
31st Jul 2025546 PMAQI
31st Jul 2025347 PMAQI
31st Jul 2025448 PMAQI
31st Jul 2025549 PMAQI
31st Jul 20255310 PMAQI
31st Jul 20255411 PMAQI
1st Aug 20255412 AMAQI
1st Aug 2025511 AMAQI
1st Aug 2025502 AMAQI
1st Aug 2025533 AMAQI
1st Aug 2025544 AMAQI
20°C13/31°C
1st Aug 2025545 AMAQI
1st Aug 2025506 AMAQI
1st Aug 2025477 AMAQI
1st Aug 2025398 AMAQI
1st Aug 2025389 AMAQI
1st Aug 20253910 AMAQI
1st Aug 20254711 AMAQI
1st Aug 20255012 PMAQI
1st Aug 2025491 PMAQI
1st Aug 2025482 PMAQI
1st Aug 2025413 PMAQI
1st Aug 2025464 PMAQI
1st Aug 2025485 PMAQI
1st Aug 2025466 PMAQI
1st Aug 2025467 PMAQI
1st Aug 2025428 PMAQI
1st Aug 2025409 PMAQI
1st Aug 20254010 PMAQI
1st Aug 20254411 PMAQI
2nd Aug 20254112 AMAQI
2nd Aug 2025341 AMAQI
2nd Aug 2025352 AMAQI
2nd Aug 2025353 AMAQI
2nd Aug 2025314 AMAQI
21°C11/33°C
2nd Aug 2025315 AMAQI
2nd Aug 2025326 AMAQI
2nd Aug 2025337 AMAQI
2nd Aug 2025348 AMAQI
2nd Aug 2025359 AMAQI
2nd Aug 20252710 AMAQI
2nd Aug 20252611 AMAQI
2nd Aug 20252612 PMAQI
2nd Aug 2025281 PMAQI
2nd Aug 2025282 PMAQI
2nd Aug 2025253 PMAQI
2nd Aug 2025224 PMAQI
2nd Aug 2025205 PMAQI
2nd Aug 2025226 PMAQI
2nd Aug 2025297 PMAQI
2nd Aug 2025288 PMAQI
2nd Aug 2025289 PMAQI
2nd Aug 20252710 PMAQI
2nd Aug 20252211 PMAQI
3rd Aug 20251812 AMAQI
3rd Aug 2025191 AMAQI
3rd Aug 2025222 AMAQI
3rd Aug 2025233 AMAQI
3rd Aug 2025224 AMAQI
21°C11/33°C
3rd Aug 2025215 AMAQI
3rd Aug 2025196 AMAQI
3rd Aug 2025197 AMAQI
3rd Aug 2025188 AMAQI
3rd Aug 2025189 AMAQI
3rd Aug 20251910 AMAQI
3rd Aug 20251911 AMAQI
3rd Aug 20251812 PMAQI
3rd Aug 2025201 PMAQI
3rd Aug 2025172 PMAQI
3rd Aug 2025223 PMAQI
3rd Aug 2025204 PMAQI
3rd Aug 2025225 PMAQI
3rd Aug 2025206 PMAQI
3rd Aug 2025217 PMAQI
3rd Aug 2025208 PMAQI
3rd Aug 2025199 PMAQI
3rd Aug 20251910 PMAQI
3rd Aug 20252111 PMAQI
4th Aug 20252312 AMAQI
4th Aug 2025221 AMAQI
4th Aug 2025232 AMAQI
4th Aug 2025233 AMAQI
4th Aug 2025244 AMAQI
21°C12/30°C
4th Aug 2025235 AMAQI
4th Aug 2025226 AMAQI
4th Aug 2025237 AMAQI
4th Aug 2025218 AMAQI
4th Aug 2025259 AMAQI
4th Aug 20252510 AMAQI
4th Aug 20252511 AMAQI
4th Aug 20252612 PMAQI
4th Aug 2025271 PMAQI
4th Aug 2025282 PMAQI
4th Aug 2025253 PMAQI
4th Aug 2025284 PMAQI
4th Aug 2025305 PMAQI
4th Aug 2025326 PMAQI
4th Aug 2025237 PMAQI
4th Aug 2025268 PMAQI
4th Aug 2025379 PMAQI
4th Aug 20254010 PMAQI
4th Aug 20254111 PMAQI
5th Aug 20253612 AMAQI
5th Aug 2025331 AMAQI
5th Aug 2025262 AMAQI
5th Aug 2025343 AMAQI
5th Aug 2025324 AMAQI
22°C10/34°C
5th Aug 2025385 AMAQI
5 AM5th Aug 2025396 AMAQI
5th Aug 2025367 AMAQI
12 PM
8 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
11 AM - 8 PM
33AQI
10 hours / Day
300 hours / Month
Avg. Lowest Time
5 AM - 10 AM
31AQI
6 hours / Day
180 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 AM to 8 PM (Avg. 33), while the lowest AQI was between 5 AM to 10 AM (Avg. 31).
Night time
Avg. Highest Time
12 AM - 11 PM
33AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 11 PM
33AQI
8 hours / Day
240 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 33), while the lowest AQI was between 12 AM to 11 PM (Avg. 33).
2025 Days Vs Air Quality
Casper, Wyoming, United States
2025
100%
216
Total number of days with different AQI categories in last 217 days in 2025 (148 days remaining)
Good
216 DaysModerate
0 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 100%
Health Risk Level:
Very Low
In 2025, 100% of 217 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 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.
1st January 2025
27AQI
27AQI
2nd January 2025
25AQI
25AQI
3rd January 2025
25AQI
25AQI
4th January 2025
24AQI
24AQI
5th January 2025
21AQI
21AQI
6th January 2025
22AQI
22AQI
7th January 2025
24AQI
24AQI
8th January 2025
30AQI
30AQI
9th January 2025
28AQI
28AQI
10th January 2025
31AQI
31AQI
11th January 2025
27AQI
27AQI
12th January 2025
26AQI
26AQI
13th January 2025
27AQI
27AQI
14th January 2025
30AQI
30AQI
15th January 2025
31AQI
31AQI
16th January 2025
28AQI
28AQI
17th January 2025
29AQI
29AQI
18th January 2025
27AQI
27AQI
19th January 2025
24AQI
24AQI
20th January 2025
27AQI
27AQI
21st January 2025
30AQI
30AQI
22nd January 2025
29AQI
29AQI
23rd January 2025
30AQI
30AQI
24th January 2025
30AQI
30AQI
25th January 2025
25AQI
25AQI
26th January 2025
27AQI
27AQI
27th January 2025
31AQI
31AQI
28th January 2025
32AQI
32AQI
29th January 2025
30AQI
30AQI
30th January 2025
31AQI
31AQI
31st January 2025
32AQI
32AQI
1st February 2025
30AQI
30AQI
2nd February 2025
28AQI
28AQI
3rd February 2025
24AQI
24AQI
4th February 2025
30AQI
30AQI
5th February 2025
30AQI
30AQI
6th February 2025
29AQI
29AQI
7th February 2025
28AQI
28AQI
8th February 2025
27AQI
27AQI
9th February 2025
27AQI
27AQI
10th February 2025
24AQI
24AQI
11th February 2025
27AQI
27AQI
12th February 2025
28AQI
28AQI
13th February 2025
23AQI
23AQI
14th February 2025
20AQI
20AQI
15th February 2025
20AQI
20AQI
16th February 2025
20AQI
20AQI
17th February 2025
21AQI
21AQI
18th February 2025
22AQI
22AQI
19th February 2025
21AQI
21AQI
20th February 2025
34AQI
34AQI
21st February 2025
24AQI
24AQI
22nd February 2025
22AQI
22AQI
23rd February 2025
22AQI
22AQI
24th February 2025
21AQI
21AQI
25th February 2025
24AQI
24AQI
26th February 2025
20AQI
20AQI
27th February 2025
23AQI
23AQI
28th February 2025
23AQI
23AQI
1st March 2025
23AQI
23AQI
2nd March 2025
19AQI
19AQI
3rd March 2025
21AQI
21AQI
4th March 2025
20AQI
20AQI
5th March 2025
17AQI
17AQI
6th March 2025
18AQI
18AQI
7th March 2025
20AQI
20AQI
8th March 2025
24AQI
24AQI
9th March 2025
23AQI
23AQI
10th March 2025
22AQI
22AQI
11th March 2025
23AQI
23AQI
12th March 2025
23AQI
23AQI
13th March 2025
20AQI
20AQI
14th March 2025
29AQI
29AQI
15th March 2025
16AQI
16AQI
16th March 2025
20AQI
20AQI
17th March 2025
18AQI
18AQI
18th March 2025
19AQI
19AQI
19th March 2025
18AQI
18AQI
20th March 2025
18AQI
18AQI
21st March 2025
15AQI
15AQI
22nd March 2025
16AQI
16AQI
23rd March 2025
16AQI
16AQI
24th March 2025
17AQI
17AQI
25th March 2025
19AQI
19AQI
26th March 2025
20AQI
20AQI
27th March 2025
36AQI
36AQI
28th March 2025
25AQI
25AQI
29th March 2025
26AQI
26AQI
30th March 2025
17AQI
17AQI
31st March 2025
21AQI
21AQI
1st April 2025
16AQI
16AQI
2nd April 2025
19AQI
19AQI
3rd April 2025
23AQI
23AQI
4th April 2025
24AQI
24AQI
5th April 2025
23AQI
23AQI
6th April 2025
20AQI
20AQI
7th April 2025
20AQI
20AQI
8th April 2025
19AQI
19AQI
9th April 2025
34AQI
34AQI
10th April 2025
37AQI
37AQI
11th April 2025
35AQI
35AQI
12th April 2025
29AQI
29AQI
13th April 2025
20AQI
20AQI
14th April 2025
19AQI
19AQI
15th April 2025
20AQI
20AQI
16th April 2025
19AQI
19AQI
17th April 2025
18AQI
18AQI
18th April 2025
14AQI
14AQI
19th April 2025
16AQI
16AQI
20th April 2025
15AQI
15AQI
21st April 2025
19AQI
19AQI
22nd April 2025
17AQI
17AQI
23rd April 2025
18AQI
18AQI
24th April 2025
24AQI
24AQI
25th April 2025
16AQI
16AQI
26th April 2025
15AQI
15AQI
27th April 2025
18AQI
18AQI
28th April 2025
14AQI
14AQI
29th April 2025
13AQI
13AQI
30th April 2025
13AQI
13AQI
1st May 2025
15AQI
15AQI
2nd May 2025
17AQI
17AQI
3rd May 2025
20AQI
20AQI
4th May 2025
20AQI
20AQI
5th May 2025
18AQI
18AQI
6th May 2025
13AQI
13AQI
7th May 2025
16AQI
16AQI
8th May 2025
21AQI
21AQI
9th May 2025
18AQI
18AQI
10th May 2025
20AQI
20AQI
11th May 2025
17AQI
17AQI
12th May 2025
23AQI
23AQI
13th May 2025
25AQI
25AQI
14th May 2025
22AQI
22AQI
15th May 2025
17AQI
17AQI
16th May 2025
15AQI
15AQI
17th May 2025
16AQI
16AQI
18th May 2025
15AQI
15AQI
19th May 2025
14AQI
14AQI
20th May 2025
16AQI
16AQI
21st May 2025
13AQI
13AQI
22nd May 2025
17AQI
17AQI
23rd May 2025
23AQI
23AQI
24th May 2025
21AQI
21AQI
25th May 2025
17AQI
17AQI
26th May 2025
15AQI
15AQI
27th May 2025
22AQI
22AQI
28th May 2025
18AQI
18AQI
29th May 2025
20AQI
20AQI
30th May 2025
20AQI
20AQI
31st May 2025
23AQI
23AQI
1st June 2025
21AQI
21AQI
2nd June 2025
24AQI
24AQI
3rd June 2025
16AQI
16AQI
4th June 2025
17AQI
17AQI
5th June 2025
21AQI
21AQI
6th June 2025
19AQI
19AQI
7th June 2025
19AQI
19AQI
8th June 2025
44AQI
44AQI
9th June 2025
46AQI
46AQI
10th June 2025
34AQI
34AQI
11th June 2025
28AQI
28AQI
12th June 2025
25AQI
25AQI
13th June 2025
27AQI
27AQI
14th June 2025
30AQI
30AQI
15th June 2025
27AQI
27AQI
16th June 2025
26AQI
26AQI
17th June 2025
27AQI
27AQI
18th June 2025
27AQI
27AQI
19th June 2025
26AQI
26AQI
20th June 2025
28AQI
28AQI
21st June 2025
39AQI
39AQI
22nd June 2025
38AQI
38AQI
23rd June 2025
29AQI
29AQI
24th June 2025
29AQI
29AQI
25th June 2025
34AQI
34AQI
26th June 2025
28AQI
28AQI
27th June 2025
26AQI
26AQI
28th June 2025
31AQI
31AQI
29th June 2025
26AQI
26AQI
30th June 2025
28AQI
28AQI
1st July 2025
27AQI
27AQI
2nd July 2025
31AQI
31AQI
3rd July 2025
27AQI
27AQI
4th July 2025
28AQI
28AQI
5th July 2025
33AQI
33AQI
6th July 2025
26AQI
26AQI
7th July 2025
27AQI
27AQI
8th July 2025
25AQI
25AQI
9th July 2025
26AQI
26AQI
10th July 2025
27AQI
27AQI
11th July 2025
33AQI
33AQI
12th July 2025
30AQI
30AQI
13th July 2025
32AQI
32AQI
14th July 2025
30AQI
30AQI
15th July 2025
33AQI
33AQI
16th July 2025
28AQI
28AQI
17th July 2025
34AQI
34AQI
18th July 2025
40AQI
40AQI
19th July 2025
33AQI
33AQI
20th July 2025
33AQI
33AQI
21st July 2025
30AQI
30AQI
22nd July 2025
28AQI
28AQI
23rd July 2025
33AQI
33AQI
24th July 2025
24AQI
24AQI
25th July 2025
34AQI
34AQI
26th July 2025
40AQI
40AQI
27th July 2025
40AQI
40AQI
28th July 2025
35AQI
35AQI
29th July 2025
46AQI
46AQI
30th July 2025
36AQI
36AQI
31st July 2025
42AQI
42AQI
1st August 2025
47AQI
47AQI
2nd August 2025
29AQI
29AQI
3rd August 2025
20AQI
20AQI
4th August 2025
24AQI
24AQI
28AQI
25AQI
21AQI
20AQI
18AQI
28AQI
32AQI
30AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202525AQI
31
28
31
30
31
30
31
4
216
Highest AQI recorded in
July32AQI
Lowest AQI recorded in
May18AQI
202432AQI
31
29
31
30
31
30
25
6
30
1
29
1
25
6
30
31
352
14
Highest AQI recorded in
July45AQI
Lowest AQI recorded in
November19AQI
202332AQI
31
28
31
30
27
3
1
30
30
31
28
2
31
29
31
357
5
1
Highest AQI recorded in
May40AQI
Lowest AQI recorded in
October24AQI
202231AQI
30
22
31
30
31
30
24
3
24
5
31
30
30
316
5
Highest AQI recorded in
July37AQI
Lowest AQI recorded in
October26AQI
202135AQI
30
28
31
30
31
28
2
21
10
16
13
2
24
6
31
30
31
331
31
2
Highest AQI recorded in
August57AQI
Lowest AQI recorded in
October26AQI
202033AQI
13
20
18
30
31
27
4
23
4
3
28
2
30
31
251
10
3
Highest AQI recorded in
September46AQI
Lowest AQI recorded in
November27AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2021(Avg.)
35AQILeast Polluted Year Recorded
2025(Avg.)
25AQICasper's annual 2025 AQI (25) shows an average percentage change of -24.3% (improved AQI) compared to previous years: 2020 (33), 2021 (35), 2022 (31), 2023 (32), 2024 (32).
