Cortez, Colorado, 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
Cortez, Colorado, United States
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
11th Aug 2025
56AQILowest AQI recorded on
2nd Aug 2025
27AQISame Day Analysis (12th August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 53 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 12th Aug - 13th Aug 2025
Cortez, Colorado, United States
AQI
Day
Night
.
6 AM12th Aug 2025
8 PM
5 AM13th Aug 2025
Day time
Avg. Highest Time
6AM12th Aug
52AQI
Avg. Lowest Time
3PM12th Aug
45AQI
Night time
Avg. Highest Time
9PM12th Aug
52AQI
Avg. Lowest Time
4AM13th Aug
44AQI
In the last 24 hours,
Cortez's AQI reached its highest point of 52 at 6 AM during the Day, while the lowest point, 44, was recorded at 4 AM during the Night between 12th Aug and 13th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Cortez, Colorado, United States
JulAug
14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th
Day
Night
14th Jul 2025416 AMAQI
14th Jul 2025447 AMAQI
14th Jul 2025408 AMAQI
14th Jul 2025419 AMAQI
14th Jul 20254410 AMAQI
14th Jul 20254811 AMAQI
14th Jul 20255412 PMAQI
14th Jul 2025521 PMAQI
14th Jul 2025482 PMAQI
14th Jul 2025473 PMAQI
14th Jul 2025484 PMAQI
14th Jul 2025465 PMAQI
14th Jul 2025476 PMAQI
14th Jul 2025437 PMAQI
14th Jul 2025438 PMAQI
14th Jul 2025419 PMAQI
14th Jul 20254010 PMAQI
14th Jul 20254111 PMAQI
15th Jul 20254112 AMAQI
15th Jul 2025401 AMAQI
15th Jul 2025402 AMAQI
15th Jul 2025383 AMAQI
15th Jul 2025324 AMAQI
15th Jul 2025305 AMAQI
26°C14/35°C
15th Jul 2025346 AMAQI
15th Jul 2025367 AMAQI
15th Jul 2025368 AMAQI
15th Jul 2025369 AMAQI
15th Jul 20253810 AMAQI
15th Jul 20254011 AMAQI
15th Jul 20254112 PMAQI
15th Jul 2025411 PMAQI
15th Jul 2025402 PMAQI
15th Jul 2025423 PMAQI
15th Jul 2025384 PMAQI
15th Jul 2025385 PMAQI
15th Jul 2025396 PMAQI
15th Jul 2025387 PMAQI
15th Jul 2025388 PMAQI
15th Jul 2025409 PMAQI
15th Jul 20253910 PMAQI
15th Jul 20254011 PMAQI
16th Jul 20254112 AMAQI
16th Jul 2025451 AMAQI
16th Jul 2025442 AMAQI
16th Jul 2025453 AMAQI
16th Jul 2025434 AMAQI
16th Jul 2025435 AMAQI
25°C13/36°C
16th Jul 2025486 AMAQI
16th Jul 2025527 AMAQI
16th Jul 2025528 AMAQI
16th Jul 2025539 AMAQI
16th Jul 20255410 AMAQI
16th Jul 20255411 AMAQI
16th Jul 20255512 PMAQI
16th Jul 2025561 PMAQI
16th Jul 2025562 PMAQI
16th Jul 2025533 PMAQI
16th Jul 2025534 PMAQI
16th Jul 2025545 PMAQI
16th Jul 2025556 PMAQI
16th Jul 2025507 PMAQI
16th Jul 2025488 PMAQI
16th Jul 2025509 PMAQI
16th Jul 20255210 PMAQI
16th Jul 20255111 PMAQI
17th Jul 20255012 AMAQI
17th Jul 2025501 AMAQI
17th Jul 2025502 AMAQI
17th Jul 2025493 AMAQI
17th Jul 2025484 AMAQI
17th Jul 2025465 AMAQI
23°C15/35°C
17th Jul 2025506 AMAQI
17th Jul 2025537 AMAQI
17th Jul 2025508 AMAQI
17th Jul 2025509 AMAQI
17th Jul 20255010 AMAQI
17th Jul 20254811 AMAQI
17th Jul 20255112 PMAQI
17th Jul 2025521 PMAQI
17th Jul 2025512 PMAQI
17th Jul 2025513 PMAQI
17th Jul 2025504 PMAQI
17th Jul 2025525 PMAQI
17th Jul 2025536 PMAQI
17th Jul 2025527 PMAQI
17th Jul 2025518 PMAQI
17th Jul 2025509 PMAQI
17th Jul 20254510 PMAQI
17th Jul 20254511 PMAQI
18th Jul 20254312 AMAQI
18th Jul 2025421 AMAQI
18th Jul 2025422 AMAQI
18th Jul 2025383 AMAQI
18th Jul 2025364 AMAQI
18th Jul 2025385 AMAQI
23°C14/32°C
18th Jul 2025366 AMAQI
18th Jul 2025387 AMAQI
18th Jul 2025398 AMAQI
18th Jul 2025409 AMAQI
18th Jul 20254110 AMAQI
18th Jul 20254011 AMAQI
18th Jul 20254212 PMAQI
18th Jul 2025401 PMAQI
18th Jul 2025382 PMAQI
18th Jul 2025473 PMAQI
18th Jul 2025364 PMAQI
18th Jul 2025365 PMAQI
18th Jul 2025326 PMAQI
18th Jul 2025397 PMAQI
18th Jul 2025388 PMAQI
18th Jul 2025319 PMAQI
18th Jul 20252810 PMAQI
18th Jul 20252911 PMAQI
19th Jul 20252912 AMAQI
19th Jul 2025281 AMAQI
19th Jul 2025292 AMAQI
19th Jul 2025303 AMAQI
19th Jul 2025284 AMAQI
19th Jul 2025255 AMAQI
24°C14/32°C
19th Jul 2025246 AMAQI
19th Jul 2025287 AMAQI
19th Jul 2025268 AMAQI
19th Jul 2025279 AMAQI
19th Jul 20252810 AMAQI
19th Jul 20252711 AMAQI
19th Jul 20253012 PMAQI
19th Jul 2025311 PMAQI
19th Jul 2025312 PMAQI
19th Jul 2025283 PMAQI
19th Jul 2025284 PMAQI
19th Jul 2025275 PMAQI
19th Jul 2025286 PMAQI
19th Jul 2025297 PMAQI
19th Jul 2025288 PMAQI
19th Jul 2025289 PMAQI
19th Jul 20252810 PMAQI
19th Jul 20252611 PMAQI
20th Jul 20252512 AMAQI
20th Jul 2025261 AMAQI
20th Jul 2025262 AMAQI
20th Jul 2025273 AMAQI
20th Jul 2025244 AMAQI
20th Jul 2025245 AMAQI
23°C15/32°C
20th Jul 2025246 AMAQI
20th Jul 2025247 AMAQI
20th Jul 2025238 AMAQI
20th Jul 2025239 AMAQI
20th Jul 20252310 AMAQI
20th Jul 20252611 AMAQI
20th Jul 20252812 PMAQI
20th Jul 2025281 PMAQI
20th Jul 2025282 PMAQI
20th Jul 2025283 PMAQI
20th Jul 2025284 PMAQI
20th Jul 2025285 PMAQI
20th Jul 2025266 PMAQI
20th Jul 2025267 PMAQI
20th Jul 2025258 PMAQI
20th Jul 2025249 PMAQI
20th Jul 20252410 PMAQI
20th Jul 20252411 PMAQI
21st Jul 20252412 AMAQI
21st Jul 2025241 AMAQI
21st Jul 2025222 AMAQI
21st Jul 2025223 AMAQI
21st Jul 2025204 AMAQI
21st Jul 2025185 AMAQI
24°C14/34°C
21st Jul 2025216 AMAQI
21st Jul 2025227 AMAQI
21st Jul 2025208 AMAQI
21st Jul 2025229 AMAQI
21st Jul 20252410 AMAQI
21st Jul 20252511 AMAQI
21st Jul 20252912 PMAQI
21st Jul 2025271 PMAQI
21st Jul 2025242 PMAQI
21st Jul 2025223 PMAQI
21st Jul 2025234 PMAQI
21st Jul 2025225 PMAQI
21st Jul 2025226 PMAQI
21st Jul 2025217 PMAQI
21st Jul 2025228 PMAQI
21st Jul 2025259 PMAQI
21st Jul 20252210 PMAQI
21st Jul 20252211 PMAQI
22nd Jul 20252212 AMAQI
22nd Jul 2025211 AMAQI
22nd Jul 2025212 AMAQI
22nd Jul 2025223 AMAQI
22nd Jul 2025224 AMAQI
22nd Jul 2025195 AMAQI
24°C17/33°C
22nd Jul 2025206 AMAQI
22nd Jul 2025197 AMAQI
22nd Jul 2025218 AMAQI
22nd Jul 2025229 AMAQI
22nd Jul 20252410 AMAQI
22nd Jul 20252511 AMAQI
22nd Jul 20252612 PMAQI
22nd Jul 2025261 PMAQI
22nd Jul 2025282 PMAQI
22nd Jul 2025243 PMAQI
22nd Jul 2025244 PMAQI
22nd Jul 2025245 PMAQI
22nd Jul 2025246 PMAQI
22nd Jul 2025217 PMAQI
22nd Jul 2025228 PMAQI
22nd Jul 2025219 PMAQI
22nd Jul 20252110 PMAQI
22nd Jul 20252211 PMAQI
23rd Jul 20252012 AMAQI
23rd Jul 2025191 AMAQI
23rd Jul 2025192 AMAQI
23rd Jul 2025183 AMAQI
23rd Jul 2025184 AMAQI
23rd Jul 2025185 AMAQI
22°C14/30°C
23rd Jul 2025196 AMAQI
23rd Jul 2025227 AMAQI
23rd Jul 2025208 AMAQI
23rd Jul 2025199 AMAQI
23rd Jul 20251810 AMAQI
23rd Jul 20252211 AMAQI
23rd Jul 20252412 PMAQI
23rd Jul 2025241 PMAQI
23rd Jul 2025262 PMAQI
23rd Jul 2025243 PMAQI
23rd Jul 2025274 PMAQI
23rd Jul 2025265 PMAQI
23rd Jul 2025246 PMAQI
23rd Jul 2025237 PMAQI
23rd Jul 2025248 PMAQI
23rd Jul 2025369 PMAQI
23rd Jul 20253810 PMAQI
23rd Jul 20253811 PMAQI
24th Jul 20253412 AMAQI
24th Jul 2025341 AMAQI
24th Jul 2025342 AMAQI
24th Jul 2025333 AMAQI
24th Jul 2025314 AMAQI
24th Jul 2025355 AMAQI
23°C14/32°C
24th Jul 2025416 AMAQI
24th Jul 2025357 AMAQI
24th Jul 2025388 AMAQI
24th Jul 2025399 AMAQI
24th Jul 20254010 AMAQI
24th Jul 20253911 AMAQI
24th Jul 20253912 PMAQI
24th Jul 2025411 PMAQI
24th Jul 2025382 PMAQI
24th Jul 2025343 PMAQI
24th Jul 2025364 PMAQI
24th Jul 2025375 PMAQI
24th Jul 2025376 PMAQI
24th Jul 2025387 PMAQI
24th Jul 2025388 PMAQI
24th Jul 2025419 PMAQI
24th Jul 20253810 PMAQI
24th Jul 20253811 PMAQI
25th Jul 20253512 AMAQI
25th Jul 2025361 AMAQI
25th Jul 2025322 AMAQI
25th Jul 2025323 AMAQI
25th Jul 2025344 AMAQI
25th Jul 2025345 AMAQI
23°C13/33°C
25th Jul 2025346 AMAQI
25th Jul 2025357 AMAQI
25th Jul 2025348 AMAQI
25th Jul 2025359 AMAQI
25th Jul 20253410 AMAQI
25th Jul 20253411 AMAQI
25th Jul 20253412 PMAQI
25th Jul 2025311 PMAQI
25th Jul 2025312 PMAQI
25th Jul 2025313 PMAQI
25th Jul 2025304 PMAQI
25th Jul 2025295 PMAQI
25th Jul 2025266 PMAQI
25th Jul 2025347 PMAQI
25th Jul 2025318 PMAQI
25th Jul 2025289 PMAQI
25th Jul 20252610 PMAQI
25th Jul 20252611 PMAQI
26th Jul 20252612 AMAQI
26th Jul 2025261 AMAQI
26th Jul 2025252 AMAQI
26th Jul 2025243 AMAQI
26th Jul 2025244 AMAQI
26th Jul 2025295 AMAQI
24°C13/33°C
26th Jul 2025286 AMAQI
26th Jul 2025277 AMAQI
26th Jul 2025268 AMAQI
26th Jul 2025299 AMAQI
26th Jul 20252810 AMAQI
26th Jul 20252711 AMAQI
26th Jul 20252912 PMAQI
26th Jul 2025331 PMAQI
26th Jul 2025342 PMAQI
26th Jul 2025313 PMAQI
26th Jul 2025284 PMAQI
26th Jul 2025245 PMAQI
26th Jul 2025226 PMAQI
26th Jul 2025257 PMAQI
26th Jul 2025258 PMAQI
26th Jul 2025209 PMAQI
26th Jul 20252210 PMAQI
26th Jul 20252411 PMAQI
27th Jul 20252812 AMAQI
27th Jul 2025271 AMAQI
27th Jul 2025292 AMAQI
27th Jul 2025303 AMAQI
27th Jul 2025304 AMAQI
27th Jul 2025295 AMAQI
24°C14/32°C
27th Jul 2025316 AMAQI
27th Jul 2025317 AMAQI
27th Jul 2025298 AMAQI
27th Jul 2025309 AMAQI
27th Jul 20252910 AMAQI
27th Jul 20252811 AMAQI
27th Jul 20253512 PMAQI
27th Jul 2025331 PMAQI
27th Jul 2025312 PMAQI
27th Jul 2025283 PMAQI
27th Jul 2025264 PMAQI
27th Jul 2025245 PMAQI
27th Jul 2025246 PMAQI
27th Jul 2025267 PMAQI
27th Jul 2025268 PMAQI
27th Jul 2025229 PMAQI
27th Jul 20252210 PMAQI
27th Jul 20252411 PMAQI
28th Jul 20252712 AMAQI
28th Jul 2025281 AMAQI
28th Jul 2025282 AMAQI
28th Jul 2025323 AMAQI
28th Jul 2025334 AMAQI
28th Jul 2025345 AMAQI
23°C12/33°C
28th Jul 2025286 AMAQI
28th Jul 2025307 AMAQI
28th Jul 2025388 AMAQI
28th Jul 2025449 AMAQI
28th Jul 20254910 AMAQI
28th Jul 20254411 AMAQI
28th Jul 20254412 PMAQI
28th Jul 2025431 PMAQI
28th Jul 2025362 PMAQI
28th Jul 2025333 PMAQI
28th Jul 2025304 PMAQI
28th Jul 2025275 PMAQI
28th Jul 2025306 PMAQI
28th Jul 2025297 PMAQI
28th Jul 2025298 PMAQI
28th Jul 2025279 PMAQI
28th Jul 20252610 PMAQI
28th Jul 20252611 PMAQI
29th Jul 20252612 AMAQI
29th Jul 2025261 AMAQI
29th Jul 2025262 AMAQI
29th Jul 2025283 AMAQI
29th Jul 2025244 AMAQI
29th Jul 2025225 AMAQI
25°C13/35°C
29th Jul 2025216 AMAQI
29th Jul 2025227 AMAQI
29th Jul 2025238 AMAQI
29th Jul 2025269 AMAQI
29th Jul 20253010 AMAQI
29th Jul 20254311 AMAQI
29th Jul 20254012 PMAQI
29th Jul 2025381 PMAQI
29th Jul 2025352 PMAQI
29th Jul 2025343 PMAQI
29th Jul 2025304 PMAQI
29th Jul 2025285 PMAQI
29th Jul 2025286 PMAQI
29th Jul 2025307 PMAQI
29th Jul 2025328 PMAQI
29th Jul 2025289 PMAQI
29th Jul 20252710 PMAQI
29th Jul 20252711 PMAQI
30th Jul 20252812 AMAQI
30th Jul 2025281 AMAQI
30th Jul 2025272 AMAQI
30th Jul 2025273 AMAQI
30th Jul 2025284 AMAQI
30th Jul 2025265 AMAQI
24°C14/34°C
30th Jul 2025266 AMAQI
30th Jul 2025257 AMAQI
30th Jul 2025258 AMAQI
30th Jul 2025309 AMAQI
30th Jul 20253010 AMAQI
30th Jul 20253211 AMAQI
30th Jul 20253012 PMAQI
30th Jul 2025281 PMAQI
30th Jul 2025282 PMAQI
30th Jul 2025283 PMAQI
30th Jul 2025284 PMAQI
30th Jul 2025285 PMAQI
30th Jul 2025286 PMAQI
30th Jul 2025287 PMAQI
30th Jul 2025288 PMAQI
30th Jul 2025409 PMAQI
30th Jul 20254410 PMAQI
30th Jul 20254211 PMAQI
31st Jul 20254012 AMAQI
31st Jul 2025381 AMAQI
31st Jul 2025382 AMAQI
31st Jul 2025373 AMAQI
31st Jul 2025384 AMAQI
31st Jul 2025425 AMAQI
25°C14/35°C
31st Jul 2025506 AMAQI
31st Jul 2025487 AMAQI
31st Jul 2025468 AMAQI
31st Jul 2025479 AMAQI
31st Jul 20254610 AMAQI
31st Jul 20254611 AMAQI
31st Jul 20254612 PMAQI
31st Jul 2025391 PMAQI
31st Jul 2025372 PMAQI
31st Jul 2025393 PMAQI
31st Jul 2025404 PMAQI
31st Jul 2025385 PMAQI
31st Jul 2025366 PMAQI
31st Jul 2025447 PMAQI
31st Jul 2025418 PMAQI
31st Jul 2025369 PMAQI
31st Jul 20253410 PMAQI
31st Jul 20253211 PMAQI
1st Aug 20253212 AMAQI
1st Aug 2025311 AMAQI
1st Aug 2025272 AMAQI
1st Aug 2025283 AMAQI
1st Aug 2025294 AMAQI
1st Aug 2025285 AMAQI
25°C18/33°C
1st Aug 2025296 AMAQI
1st Aug 2025287 AMAQI
1st Aug 2025278 AMAQI
1st Aug 2025299 AMAQI
1st Aug 20252710 AMAQI
1st Aug 20252711 AMAQI
1st Aug 20252912 PMAQI
1st Aug 2025311 PMAQI
1st Aug 2025322 PMAQI
1st Aug 2025313 PMAQI
1st Aug 2025354 PMAQI
1st Aug 2025365 PMAQI
1st Aug 2025366 PMAQI
1st Aug 2025327 PMAQI
1st Aug 2025308 PMAQI
1st Aug 2025309 PMAQI
1st Aug 20252610 PMAQI
1st Aug 20252711 PMAQI
2nd Aug 20252912 AMAQI
2nd Aug 2025261 AMAQI
2nd Aug 2025242 AMAQI
2nd Aug 2025293 AMAQI
2nd Aug 2025294 AMAQI
2nd Aug 2025305 AMAQI
24°C13/33°C
2nd Aug 2025286 AMAQI
2nd Aug 2025287 AMAQI
2nd Aug 2025288 AMAQI
2nd Aug 2025289 AMAQI
2nd Aug 20252810 AMAQI
2nd Aug 20253011 AMAQI
2nd Aug 20253012 PMAQI
2nd Aug 2025311 PMAQI
2nd Aug 2025282 PMAQI
2nd Aug 2025283 PMAQI
2nd Aug 2025274 PMAQI
2nd Aug 2025275 PMAQI
2nd Aug 2025236 PMAQI
2nd Aug 2025267 PMAQI
2nd Aug 2025268 PMAQI
2nd Aug 2025249 PMAQI
2nd Aug 20252310 PMAQI
2nd Aug 20252211 PMAQI
3rd Aug 20252212 AMAQI
3rd Aug 2025221 AMAQI
3rd Aug 2025222 AMAQI
3rd Aug 2025233 AMAQI
3rd Aug 2025244 AMAQI
3rd Aug 2025285 AMAQI
24°C14/34°C
3rd Aug 2025326 AMAQI
3rd Aug 2025327 AMAQI
3rd Aug 2025348 AMAQI
3rd Aug 2025349 AMAQI
3rd Aug 20253410 AMAQI
3rd Aug 20253411 AMAQI
3rd Aug 20253812 PMAQI
3rd Aug 2025371 PMAQI
3rd Aug 2025402 PMAQI
3rd Aug 2025373 PMAQI
3rd Aug 2025364 PMAQI
3rd Aug 2025365 PMAQI
3rd Aug 2025406 PMAQI
3rd Aug 2025327 PMAQI
3rd Aug 2025338 PMAQI
3rd Aug 2025299 PMAQI
3rd Aug 20252910 PMAQI
3rd Aug 20253711 PMAQI
4th Aug 20253612 AMAQI
4th Aug 2025381 AMAQI
4th Aug 2025382 AMAQI
4th Aug 2025373 AMAQI
4th Aug 2025424 AMAQI
4th Aug 2025385 AMAQI
24°C14/33°C
4th Aug 2025396 AMAQI
4th Aug 2025397 AMAQI
4th Aug 2025398 AMAQI
4th Aug 2025419 AMAQI
4th Aug 20254410 AMAQI
4th Aug 20254711 AMAQI
4th Aug 20254812 PMAQI
4th Aug 2025551 PMAQI
4th Aug 2025602 PMAQI
4th Aug 2025583 PMAQI
4th Aug 2025524 PMAQI
4th Aug 2025475 PMAQI
4th Aug 2025376 PMAQI
4th Aug 2025427 PMAQI
4th Aug 2025378 PMAQI
4th Aug 2025339 PMAQI
4th Aug 20253310 PMAQI
4th Aug 20253411 PMAQI
5th Aug 20253212 AMAQI
5th Aug 2025331 AMAQI
5th Aug 2025312 AMAQI
5th Aug 2025313 AMAQI
5th Aug 2025304 AMAQI
5th Aug 2025305 AMAQI
24°C12/34°C
5th Aug 2025286 AMAQI
5th Aug 2025297 AMAQI
5th Aug 2025368 AMAQI
5th Aug 2025389 AMAQI
5th Aug 20254210 AMAQI
5th Aug 20254411 AMAQI
5th Aug 20254912 PMAQI
5th Aug 2025541 PMAQI
5th Aug 2025512 PMAQI
5th Aug 2025453 PMAQI
5th Aug 2025414 PMAQI
5th Aug 2025415 PMAQI
5th Aug 2025306 PMAQI
5th Aug 2025317 PMAQI
5th Aug 2025268 PMAQI
5th Aug 2025249 PMAQI
5th Aug 20252610 PMAQI
5th Aug 20252411 PMAQI
6th Aug 20252512 AMAQI
6th Aug 2025281 AMAQI
6th Aug 2025262 AMAQI
6th Aug 2025263 AMAQI
6th Aug 2025274 AMAQI
6th Aug 2025355 AMAQI
25°C15/34°C
6th Aug 2025336 AMAQI
6th Aug 2025427 AMAQI
6th Aug 2025518 AMAQI
6th Aug 2025559 AMAQI
6th Aug 20255810 AMAQI
6th Aug 20255811 AMAQI
6th Aug 20255512 PMAQI
6th Aug 2025541 PMAQI
6th Aug 2025542 PMAQI
6th Aug 2025483 PMAQI
6th Aug 2025424 PMAQI
6th Aug 2025385 PMAQI
6th Aug 2025346 PMAQI
6th Aug 2025327 PMAQI
6th Aug 2025328 PMAQI
6th Aug 2025299 PMAQI
6th Aug 20253010 PMAQI
6th Aug 20253011 PMAQI
7th Aug 20253212 AMAQI
7th Aug 2025381 AMAQI
7th Aug 2025382 AMAQI
7th Aug 2025373 AMAQI
7th Aug 2025354 AMAQI
7th Aug 2025345 AMAQI
26°C16/35°C
7th Aug 2025366 AMAQI
7th Aug 2025377 AMAQI
7th Aug 2025378 AMAQI
7th Aug 2025429 AMAQI
7th Aug 20254210 AMAQI
7th Aug 20254111 AMAQI
7th Aug 20254212 PMAQI
7th Aug 2025481 PMAQI
7th Aug 2025452 PMAQI
7th Aug 2025443 PMAQI
7th Aug 2025404 PMAQI
7th Aug 2025385 PMAQI
7th Aug 2025366 PMAQI
7th Aug 2025367 PMAQI
7th Aug 2025368 PMAQI
7th Aug 2025339 PMAQI
7th Aug 20253410 PMAQI
7th Aug 20253211 PMAQI
8th Aug 20253312 AMAQI
8th Aug 2025311 AMAQI
8th Aug 2025322 AMAQI
8th Aug 2025343 AMAQI
8th Aug 2025324 AMAQI
8th Aug 2025255 AMAQI
26°C16/36°C
8th Aug 2025306 AMAQI
8th Aug 2025327 AMAQI
8th Aug 2025338 AMAQI
8th Aug 2025369 AMAQI
8th Aug 20254110 AMAQI
8th Aug 20254411 AMAQI
8th Aug 20254712 PMAQI
8th Aug 2025431 PMAQI
8th Aug 2025362 PMAQI
8th Aug 2025363 PMAQI
8th Aug 2025344 PMAQI
8th Aug 2025365 PMAQI
8th Aug 2025386 PMAQI
8th Aug 2025367 PMAQI
8th Aug 2025368 PMAQI
8th Aug 2025429 PMAQI
8th Aug 20254110 PMAQI
8th Aug 20254511 PMAQI
9th Aug 20254512 AMAQI
9th Aug 2025471 AMAQI
9th Aug 2025422 AMAQI
9th Aug 2025423 AMAQI
9th Aug 2025374 AMAQI
9th Aug 2025385 AMAQI
26°C16/35°C
9th Aug 2025376 AMAQI
9th Aug 2025367 AMAQI
9th Aug 2025378 AMAQI
9th Aug 2025379 AMAQI
9th Aug 20254110 AMAQI
9th Aug 20254811 AMAQI
9th Aug 20255212 PMAQI
9th Aug 2025501 PMAQI
9th Aug 2025462 PMAQI
9th Aug 2025423 PMAQI
9th Aug 2025434 PMAQI
9th Aug 2025405 PMAQI
9th Aug 2025386 PMAQI
9th Aug 2025387 PMAQI
9th Aug 2025398 PMAQI
9th Aug 2025399 PMAQI
9th Aug 20253710 PMAQI
9th Aug 20253611 PMAQI
10th Aug 20253612 AMAQI
10th Aug 2025361 AMAQI
10th Aug 2025362 AMAQI
10th Aug 2025353 AMAQI
10th Aug 2025344 AMAQI
10th Aug 2025325 AMAQI
25°C16/34°C
10th Aug 2025356 AMAQI
10th Aug 2025367 AMAQI
10th Aug 2025388 AMAQI
10th Aug 2025379 AMAQI
10th Aug 20253810 AMAQI
10th Aug 20253811 AMAQI
10th Aug 20253812 PMAQI
10th Aug 2025391 PMAQI
10th Aug 2025392 PMAQI
10th Aug 2025383 PMAQI
10th Aug 2025374 PMAQI
10th Aug 2025365 PMAQI
10th Aug 2025346 PMAQI
10th Aug 2025357 PMAQI
10th Aug 2025348 PMAQI
10th Aug 2025289 PMAQI
10th Aug 20252910 PMAQI
10th Aug 20253011 PMAQI
11th Aug 20253412 AMAQI
11th Aug 2025681 AMAQI
11th Aug 2025812 AMAQI
11th Aug 2025623 AMAQI
11th Aug 2025644 AMAQI
11th Aug 2025525 AMAQI
23°C14/31°C
11th Aug 2025466 AMAQI
11th Aug 2025417 AMAQI
11th Aug 2025388 AMAQI
11th Aug 2025409 AMAQI
11th Aug 20254210 AMAQI
11th Aug 20254611 AMAQI
11th Aug 20255012 PMAQI
11th Aug 2025541 PMAQI
11th Aug 2025572 PMAQI
11th Aug 2025643 PMAQI
11th Aug 2025744 PMAQI
11th Aug 2025635 PMAQI
11th Aug 2025646 PMAQI
11th Aug 2025537 PMAQI
11th Aug 2025568 PMAQI
11th Aug 2025589 PMAQI
11th Aug 20255810 PMAQI
11th Aug 20255811 PMAQI
12th Aug 20256212 AMAQI
12th Aug 2025611 AMAQI
12th Aug 2025592 AMAQI
12th Aug 2025573 AMAQI
12th Aug 2025534 AMAQI
12th Aug 2025535 AMAQI
22°C11/33°C
12th Aug 2025526 AMAQI
12th Aug 2025527 AMAQI
12th Aug 2025508 AMAQI
12th Aug 2025529 AMAQI
12th Aug 20255210 AMAQI
12th Aug 20255211 AMAQI
12th Aug 20255212 PMAQI
12th Aug 2025461 PMAQI
12th Aug 2025462 PMAQI
12th Aug 2025453 PMAQI
12th Aug 2025464 PMAQI
12th Aug 2025465 PMAQI
12th Aug 2025496 PMAQI
12th Aug 2025527 PMAQI
12th Aug 2025508 PMAQI
12th Aug 2025529 PMAQI
12th Aug 20255110 PMAQI
12th Aug 20255011 PMAQI
13th Aug 20255212 AMAQI
13th Aug 2025511 AMAQI
13th Aug 2025492 AMAQI
13th Aug 2025473 AMAQI
13th Aug 2025444 AMAQI
13th Aug 2025455 AMAQI
23°C11/34°C
13th Aug 2025426 AMAQI
6 AM13th Aug 2025407 AMAQI
13th Aug 2025488 AMAQI
13th Aug 2025539 AMAQI
13th Aug 20255410 AMAQI
13th Aug 20255511 AMAQI
1 PM
8 PM
1 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
9 AM - 8 PM
37AQI
12 hours / Day
360 hours / Month
Avg. Lowest Time
6 AM - 8 AM
34AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 AM to 8 PM (Avg. 37), while the lowest AQI was between 6 AM to 8 AM (Avg. 34).
Night time
Avg. Highest Time
12 AM - 11 PM
34AQI
9 hours / Day
270 hours / Month
Avg. Lowest Time
12 AM - 11 PM
34AQI
9 hours / Day
270 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 34), while the lowest AQI was between 12 AM to 11 PM (Avg. 34).
2025 Days Vs Air Quality
Cortez, Colorado, United States
2025
97%
136
3%
4
Total number of days with different AQI categories in last 225 days in 2025 (140 days remaining)
Good
136 DaysModerate
4 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 97%
Health Risk Level:
Very Low
In 2025, 97% of 225 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
Cortez, Colorado, 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 March 2025
24AQI
24AQI
2nd March 2025
28AQI
28AQI
3rd March 2025
28AQI
28AQI
4th March 2025
25AQI
25AQI
5th March 2025
43AQI
43AQI
6th March 2025
43AQI
43AQI
1st April 2025
33AQI
33AQI
2nd April 2025
20AQI
20AQI
3rd April 2025
25AQI
25AQI
4th April 2025
23AQI
23AQI
5th April 2025
18AQI
18AQI
6th April 2025
18AQI
18AQI
7th April 2025
23AQI
23AQI
8th April 2025
30AQI
30AQI
9th April 2025
28AQI
28AQI
10th April 2025
38AQI
38AQI
11th April 2025
35AQI
35AQI
12th April 2025
28AQI
28AQI
13th April 2025
28AQI
28AQI
14th April 2025
24AQI
24AQI
15th April 2025
26AQI
26AQI
16th April 2025
24AQI
24AQI
17th April 2025
25AQI
25AQI
18th April 2025
21AQI
21AQI
19th April 2025
22AQI
22AQI
20th April 2025
20AQI
20AQI
21st April 2025
19AQI
19AQI
22nd April 2025
21AQI
21AQI
23rd April 2025
23AQI
23AQI
24th April 2025
25AQI
25AQI
25th April 2025
25AQI
25AQI
26th April 2025
26AQI
26AQI
27th April 2025
35AQI
35AQI
28th April 2025
24AQI
24AQI
29th April 2025
21AQI
21AQI
30th April 2025
23AQI
23AQI
1st May 2025
18AQI
18AQI
2nd May 2025
21AQI
21AQI
3rd May 2025
20AQI
20AQI
4th May 2025
27AQI
27AQI
5th May 2025
22AQI
22AQI
6th May 2025
18AQI
18AQI
7th May 2025
17AQI
17AQI
8th May 2025
21AQI
21AQI
9th May 2025
23AQI
23AQI
10th May 2025
23AQI
23AQI
11th May 2025
22AQI
22AQI
12th May 2025
26AQI
26AQI
13th May 2025
26AQI
26AQI
14th May 2025
30AQI
30AQI
15th May 2025
24AQI
24AQI
16th May 2025
23AQI
23AQI
17th May 2025
26AQI
26AQI
18th May 2025
26AQI
26AQI
19th May 2025
24AQI
24AQI
20th May 2025
23AQI
23AQI
21st May 2025
23AQI
23AQI
22nd May 2025
30AQI
30AQI
23rd May 2025
30AQI
30AQI
24th May 2025
26AQI
26AQI
25th May 2025
23AQI
23AQI
26th May 2025
22AQI
22AQI
27th May 2025
24AQI
24AQI
28th May 2025
29AQI
29AQI
29th May 2025
28AQI
28AQI
30th May 2025
28AQI
28AQI
31st May 2025
35AQI
35AQI
1st June 2025
39AQI
39AQI
2nd June 2025
30AQI
30AQI
3rd June 2025
22AQI
22AQI
4th June 2025
25AQI
25AQI
5th June 2025
22AQI
22AQI
6th June 2025
26AQI
26AQI
7th June 2025
28AQI
28AQI
8th June 2025
31AQI
31AQI
9th June 2025
36AQI
36AQI
10th June 2025
31AQI
31AQI
11th June 2025
31AQI
31AQI
12th June 2025
32AQI
32AQI
13th June 2025
42AQI
42AQI
14th June 2025
35AQI
35AQI
15th June 2025
33AQI
33AQI
16th June 2025
34AQI
34AQI
17th June 2025
35AQI
35AQI
18th June 2025
39AQI
39AQI
19th June 2025
40AQI
40AQI
20th June 2025
44AQI
44AQI
21st June 2025
49AQI
49AQI
22nd June 2025
46AQI
46AQI
23rd June 2025
35AQI
35AQI
24th June 2025
31AQI
31AQI
25th June 2025
26AQI
26AQI
26th June 2025
26AQI
26AQI
27th June 2025
29AQI
29AQI
28th June 2025
33AQI
33AQI
29th June 2025
37AQI
37AQI
30th June 2025
36AQI
36AQI
1st July 2025
32AQI
32AQI
2nd July 2025
26AQI
26AQI
3rd July 2025
27AQI
27AQI
4th July 2025
27AQI
27AQI
5th July 2025
33AQI
33AQI
6th July 2025
31AQI
31AQI
7th July 2025
30AQI
30AQI
8th July 2025
31AQI
31AQI
9th July 2025
34AQI
34AQI
10th July 2025
32AQI
32AQI
11th July 2025
48AQI
48AQI
12th July 2025
53AQI
53AQI
13th July 2025
51AQI
51AQI
14th July 2025
45AQI
45AQI
15th July 2025
38AQI
38AQI
16th July 2025
50AQI
50AQI
17th July 2025
50AQI
50AQI
18th July 2025
38AQI
38AQI
19th July 2025
28AQI
28AQI
20th July 2025
25AQI
25AQI
21st July 2025
23AQI
23AQI
22nd July 2025
22AQI
22AQI
23rd July 2025
24AQI
24AQI
24th July 2025
37AQI
37AQI
25th July 2025
32AQI
32AQI
26th July 2025
26AQI
26AQI
27th July 2025
28AQI
28AQI
28th July 2025
32AQI
32AQI
29th July 2025
29AQI
29AQI
30th July 2025
30AQI
30AQI
31st July 2025
40AQI
40AQI
1st August 2025
30AQI
30AQI
2nd August 2025
27AQI
27AQI
3rd August 2025
31AQI
31AQI
4th August 2025
41AQI
41AQI
5th August 2025
34AQI
34AQI
6th August 2025
37AQI
37AQI
7th August 2025
37AQI
37AQI
8th August 2025
36AQI
36AQI
9th August 2025
41AQI
41AQI
10th August 2025
35AQI
35AQI
11th August 2025
56AQI
56AQI
12th August 2025
53AQI
53AQI
32AQI
25AQI
24AQI
33AQI
34AQI
38AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202530AQI
6
30
31
30
29
2
10
2
136
4
Highest AQI recorded in
August38AQI
Lowest AQI recorded in
May24AQI
Most & Least Polluted Years Over the Last 1 Years
Most Polluted Year Recorded
2025(Avg.)
30AQILeast Polluted Year Recorded
2025(Avg.)
30AQICortez's annual 2025 AQI (30) shows an average percentage change of NaN% (improved AQI) compared to previous years: .
