Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Vail, 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

Vail, Colorado, United States

2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
17th Aug 2023
125AQI
Lowest AQI recorded on
22nd Aug 2023
11AQI

Same Day Analysis (17th August ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 3rd highest AQI at 22 of Good air quality, showing improvement over 2024 and 2023 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 17th Aug - 18th Aug 2025

Vail, Colorado, United States

AQI
Day
Night
.

6 AM17th Aug 2025

7 PM

5 AM18th Aug 2025

Day time
Avg. Highest Time
10AM17th Aug

25AQI

Avg. Lowest Time
6PM17th Aug

14AQI

Night time
Avg. Highest Time
1AM18th Aug

24AQI

Avg. Lowest Time
9PM17th Aug

16AQI

In the last 24 hours,

Vail's AQI reached its highest point of 25 at 10 AM during the Day, while the lowest point, 14, was recorded at 6 PM during the Day between 17th Aug and 18th Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Vail, Colorado, United States

JulAug
19th - 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 - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th
Day
Night
19th Jul 2025286 AMAQI
19th Jul 2025287 AMAQI
19th Jul 2025278 AMAQI
19th Jul 2025279 AMAQI
19th Jul 20252810 AMAQI
19th Jul 20252811 AMAQI
19th Jul 20253012 PMAQI
19th Jul 2025311 PMAQI
19th Jul 2025322 PMAQI
19th Jul 2025313 PMAQI
19th Jul 2025304 PMAQI
19th Jul 2025305 PMAQI
19th Jul 2025306 PMAQI
19th Jul 2025307 PMAQI
19th Jul 2025298 PMAQI
19th Jul 2025279 PMAQI
19th Jul 20252610 PMAQI
19th Jul 20252511 PMAQI
20th Jul 20252512 AMAQI
20th Jul 2025261 AMAQI
20th Jul 2025312 AMAQI
20th Jul 2025483 AMAQI
20th Jul 2025254 AMAQI
20th Jul 2025225 AMAQI

23°C16/31°C

20th Jul 2025236 AMAQI
20th Jul 2025267 AMAQI
20th Jul 2025268 AMAQI
20th Jul 2025249 AMAQI
20th Jul 20252310 AMAQI
20th Jul 20252511 AMAQI
20th Jul 20252612 PMAQI
20th Jul 2025261 PMAQI
20th Jul 2025262 PMAQI
20th Jul 2025273 PMAQI
20th Jul 2025264 PMAQI
20th Jul 2025265 PMAQI
20th Jul 2025246 PMAQI
20th Jul 2025227 PMAQI
20th Jul 2025238 PMAQI
20th Jul 2025239 PMAQI
20th Jul 20252310 PMAQI
20th Jul 20252511 PMAQI
21st Jul 20252612 AMAQI
21st Jul 2025261 AMAQI
21st Jul 2025242 AMAQI
21st Jul 2025243 AMAQI
21st Jul 2025244 AMAQI
21st Jul 2025245 AMAQI

22°C14/31°C

21st Jul 2025236 AMAQI
21st Jul 2025237 AMAQI
21st Jul 2025248 AMAQI
21st Jul 2025249 AMAQI
21st Jul 20252610 AMAQI
21st Jul 20252611 AMAQI
21st Jul 20252712 PMAQI
21st Jul 2025241 PMAQI
21st Jul 2025242 PMAQI
21st Jul 2025243 PMAQI
21st Jul 2025234 PMAQI
21st Jul 2025235 PMAQI
21st Jul 2025246 PMAQI
21st Jul 2025247 PMAQI
21st Jul 2025218 PMAQI
21st Jul 2025219 PMAQI
21st Jul 20252110 PMAQI
21st Jul 20252211 PMAQI
22nd Jul 20252212 AMAQI
22nd Jul 2025221 AMAQI
22nd Jul 2025242 AMAQI
22nd Jul 2025233 AMAQI
22nd Jul 2025224 AMAQI
22nd Jul 2025205 AMAQI

20°C13/30°C

22nd Jul 2025206 AMAQI
22nd Jul 2025217 AMAQI
22nd Jul 2025228 AMAQI
22nd Jul 2025229 AMAQI
22nd Jul 20252110 AMAQI
22nd Jul 20252111 AMAQI
22nd Jul 20252112 PMAQI
22nd Jul 2025211 PMAQI
22nd Jul 2025222 PMAQI
22nd Jul 2025223 PMAQI
22nd Jul 2025244 PMAQI
22nd Jul 2025225 PMAQI
22nd Jul 2025216 PMAQI
22nd Jul 2025217 PMAQI
22nd Jul 2025218 PMAQI
22nd Jul 2025229 PMAQI
22nd Jul 20252210 PMAQI
22nd Jul 20252211 PMAQI
23rd Jul 20252212 AMAQI
23rd Jul 2025211 AMAQI
23rd Jul 2025202 AMAQI
23rd Jul 2025203 AMAQI
23rd Jul 2025194 AMAQI
23rd Jul 2025185 AMAQI

19°C12/28°C

23rd Jul 2025196 AMAQI
23rd Jul 2025197 AMAQI
23rd Jul 2025198 AMAQI
23rd Jul 2025219 AMAQI
23rd Jul 20252010 AMAQI
23rd Jul 20252211 AMAQI
23rd Jul 20252212 PMAQI
23rd Jul 2025221 PMAQI
23rd Jul 2025222 PMAQI
23rd Jul 2025203 PMAQI
23rd Jul 2025244 PMAQI
23rd Jul 2025225 PMAQI
23rd Jul 2025206 PMAQI
23rd Jul 2025217 PMAQI
23rd Jul 2025228 PMAQI
23rd Jul 2025249 PMAQI
23rd Jul 20252410 PMAQI
23rd Jul 20252311 PMAQI
24th Jul 20252212 AMAQI
24th Jul 2025221 AMAQI
24th Jul 2025232 AMAQI
24th Jul 2025223 AMAQI
24th Jul 2025234 AMAQI
24th Jul 2025225 AMAQI

20°C11/31°C

24th Jul 2025226 AMAQI
24th Jul 2025257 AMAQI
24th Jul 2025248 AMAQI
24th Jul 2025249 AMAQI
24th Jul 20252610 AMAQI
24th Jul 20252811 AMAQI
24th Jul 20252912 PMAQI
24th Jul 2025321 PMAQI
24th Jul 2025342 PMAQI
24th Jul 2025323 PMAQI
24th Jul 2025344 PMAQI
24th Jul 2025345 PMAQI
24th Jul 2025356 PMAQI
24th Jul 2025287 PMAQI
24th Jul 2025308 PMAQI
24th Jul 2025339 PMAQI
24th Jul 20253110 PMAQI
24th Jul 20253111 PMAQI
25th Jul 20253212 AMAQI
25th Jul 2025321 AMAQI
25th Jul 2025322 AMAQI
25th Jul 2025293 AMAQI
25th Jul 2025294 AMAQI
25th Jul 2025285 AMAQI

20°C12/30°C

25th Jul 2025346 AMAQI
25th Jul 2025337 AMAQI
25th Jul 2025388 AMAQI
25th Jul 2025379 AMAQI
25th Jul 20253710 AMAQI
25th Jul 20253911 AMAQI
25th Jul 20253812 PMAQI
25th Jul 2025391 PMAQI
25th Jul 2025402 PMAQI
25th Jul 2025353 PMAQI
25th Jul 2025354 PMAQI
25th Jul 2025375 PMAQI
25th Jul 2025346 PMAQI
25th Jul 2025377 PMAQI
25th Jul 2025388 PMAQI
25th Jul 2025379 PMAQI
25th Jul 20253710 PMAQI
25th Jul 20253511 PMAQI
26th Jul 20253612 AMAQI
26th Jul 2025361 AMAQI
26th Jul 2025332 AMAQI
26th Jul 2025343 AMAQI
26th Jul 2025354 AMAQI
26th Jul 2025365 AMAQI

18°C10/29°C

26th Jul 2025356 AMAQI
26th Jul 2025357 AMAQI
26th Jul 2025368 AMAQI
26th Jul 2025349 AMAQI
26th Jul 20253710 AMAQI
26th Jul 20253811 AMAQI
26th Jul 20254212 PMAQI
26th Jul 2025411 PMAQI
26th Jul 2025412 PMAQI
26th Jul 2025363 PMAQI
26th Jul 2025334 PMAQI
26th Jul 2025295 PMAQI
26th Jul 2025296 PMAQI
26th Jul 2025347 PMAQI
26th Jul 2025368 PMAQI
26th Jul 2025299 PMAQI
26th Jul 20252610 PMAQI
26th Jul 20252911 PMAQI
27th Jul 20253212 AMAQI
27th Jul 2025331 AMAQI
27th Jul 2025342 AMAQI
27th Jul 2025363 AMAQI
27th Jul 2025324 AMAQI
27th Jul 2025305 AMAQI

17°C9/28°C

27th Jul 2025286 AMAQI
27th Jul 2025277 AMAQI
27th Jul 2025278 AMAQI
27th Jul 2025249 AMAQI
27th Jul 20252610 AMAQI
27th Jul 20252311 AMAQI
27th Jul 20252412 PMAQI
27th Jul 2025251 PMAQI
27th Jul 2025252 PMAQI
27th Jul 2025283 PMAQI
27th Jul 2025294 PMAQI
27th Jul 2025325 PMAQI
27th Jul 2025296 PMAQI
27th Jul 2025297 PMAQI
27th Jul 2025298 PMAQI
27th Jul 2025249 PMAQI
27th Jul 20252410 PMAQI
27th Jul 20252711 PMAQI
28th Jul 20253112 AMAQI
28th Jul 2025351 AMAQI
28th Jul 2025312 AMAQI
28th Jul 2025253 AMAQI
28th Jul 2025224 AMAQI
28th Jul 2025225 AMAQI

19°C10/30°C

28th Jul 2025246 AMAQI
28th Jul 2025287 AMAQI
28th Jul 2025278 AMAQI
28th Jul 2025279 AMAQI
28th Jul 20252810 AMAQI
28th Jul 20253011 AMAQI
28th Jul 20252812 PMAQI
28th Jul 2025281 PMAQI
28th Jul 2025302 PMAQI
28th Jul 2025303 PMAQI
28th Jul 2025294 PMAQI
28th Jul 2025305 PMAQI
28th Jul 2025306 PMAQI
28th Jul 2025267 PMAQI
28th Jul 2025278 PMAQI
28th Jul 2025309 PMAQI
28th Jul 20252910 PMAQI
28th Jul 20252811 PMAQI
29th Jul 20253912 AMAQI
29th Jul 2025301 AMAQI
29th Jul 2025292 AMAQI
29th Jul 2025313 AMAQI
29th Jul 2025284 AMAQI
29th Jul 2025295 AMAQI

21°C12/31°C

29th Jul 2025286 AMAQI
29th Jul 2025307 AMAQI
29th Jul 2025298 AMAQI
29th Jul 2025299 AMAQI
29th Jul 20253110 AMAQI
29th Jul 20253211 AMAQI
29th Jul 20253212 PMAQI
29th Jul 2025331 PMAQI
29th Jul 2025292 PMAQI
29th Jul 2025273 PMAQI
29th Jul 2025284 PMAQI
29th Jul 2025315 PMAQI
29th Jul 2025286 PMAQI
29th Jul 2025287 PMAQI
29th Jul 2025298 PMAQI
29th Jul 2025269 PMAQI
29th Jul 20253110 PMAQI
29th Jul 20253211 PMAQI
30th Jul 20253312 AMAQI
30th Jul 2025331 AMAQI
30th Jul 2025322 AMAQI
30th Jul 2025323 AMAQI
30th Jul 2025334 AMAQI
30th Jul 2025285 AMAQI

24°C14/35°C

30th Jul 2025286 AMAQI
30th Jul 2025297 AMAQI
30th Jul 2025338 AMAQI
30th Jul 2025329 AMAQI
30th Jul 20253010 AMAQI
30th Jul 20253011 AMAQI
30th Jul 20253312 PMAQI
30th Jul 2025331 PMAQI
30th Jul 2025342 PMAQI
30th Jul 2025343 PMAQI
30th Jul 2025344 PMAQI
30th Jul 2025345 PMAQI
30th Jul 2025346 PMAQI
30th Jul 2025347 PMAQI
30th Jul 2025348 PMAQI
30th Jul 2025409 PMAQI
30th Jul 20254310 PMAQI
30th Jul 20254511 PMAQI
31st Jul 20254012 AMAQI
31st Jul 2025391 AMAQI
31st Jul 2025352 AMAQI
31st Jul 2025343 AMAQI
31st Jul 2025324 AMAQI
31st Jul 2025325 AMAQI

23°C14/34°C

31st Jul 2025376 AMAQI
31st Jul 2025427 AMAQI
31st Jul 2025448 AMAQI
31st Jul 2025439 AMAQI
31st Jul 20254610 AMAQI
31st Jul 20254611 AMAQI
31st Jul 20254412 PMAQI
31st Jul 2025481 PMAQI
31st Jul 2025492 PMAQI
31st Jul 2025453 PMAQI
31st Jul 2025454 PMAQI
31st Jul 2025485 PMAQI
31st Jul 2025506 PMAQI
31st Jul 2025437 PMAQI
31st Jul 2025408 PMAQI
31st Jul 2025389 PMAQI
31st Jul 20253410 PMAQI
31st Jul 20253611 PMAQI
1st Aug 20253612 AMAQI
1st Aug 2025351 AMAQI
1st Aug 2025272 AMAQI
1st Aug 2025413 AMAQI
1st Aug 2025384 AMAQI
1st Aug 2025345 AMAQI

24°C15/34°C

1st Aug 2025326 AMAQI
1st Aug 2025337 AMAQI
1st Aug 2025338 AMAQI
1st Aug 2025309 AMAQI
1st Aug 20253210 AMAQI
1st Aug 20252811 AMAQI
1st Aug 20253412 PMAQI
1st Aug 2025311 PMAQI
1st Aug 2025322 PMAQI
1st Aug 2025393 PMAQI
1st Aug 2025374 PMAQI
1st Aug 2025325 PMAQI
1st Aug 2025246 PMAQI
1st Aug 2025327 PMAQI
1st Aug 2025288 PMAQI
1st Aug 2025269 PMAQI
1st Aug 20252410 PMAQI
1st Aug 20252611 PMAQI
2nd Aug 20252612 AMAQI
2nd Aug 2025251 AMAQI
2nd Aug 2025242 AMAQI
2nd Aug 2025263 AMAQI
2nd Aug 2025244 AMAQI
2nd Aug 2025215 AMAQI

24°C16/34°C

2nd Aug 2025226 AMAQI
2nd Aug 2025247 AMAQI
2nd Aug 2025238 AMAQI
2nd Aug 2025239 AMAQI
2nd Aug 20252210 AMAQI
2nd Aug 20252311 AMAQI
2nd Aug 20252112 PMAQI
2nd Aug 2025201 PMAQI
2nd Aug 2025202 PMAQI
2nd Aug 2025233 PMAQI
2nd Aug 2025244 PMAQI
2nd Aug 2025235 PMAQI
2nd Aug 2025176 PMAQI
2nd Aug 2025227 PMAQI
2nd Aug 2025228 PMAQI
2nd Aug 2025189 PMAQI
2nd Aug 20252210 PMAQI
2nd Aug 20252011 PMAQI
3rd Aug 20252012 AMAQI
3rd Aug 2025221 AMAQI
3rd Aug 2025212 AMAQI
3rd Aug 2025233 AMAQI
3rd Aug 2025204 AMAQI
3rd Aug 2025215 AMAQI

24°C15/35°C

3rd Aug 2025196 AMAQI
3rd Aug 2025187 AMAQI
3rd Aug 2025198 AMAQI
3rd Aug 2025219 AMAQI
3rd Aug 20252110 AMAQI
3rd Aug 20252011 AMAQI
3rd Aug 20251912 PMAQI
3rd Aug 2025221 PMAQI
3rd Aug 2025222 PMAQI
3rd Aug 2025223 PMAQI
3rd Aug 2025224 PMAQI
3rd Aug 2025265 PMAQI
3rd Aug 2025246 PMAQI
3rd Aug 2025207 PMAQI
3rd Aug 2025228 PMAQI
3rd Aug 2025249 PMAQI
3rd Aug 20252410 PMAQI
3rd Aug 20252611 PMAQI
4th Aug 20252812 AMAQI
4th Aug 2025271 AMAQI
4th Aug 2025272 AMAQI
4th Aug 2025213 AMAQI
4th Aug 2025234 AMAQI
4th Aug 2025245 AMAQI

24°C16/35°C

4th Aug 2025306 AMAQI
4th Aug 2025307 AMAQI
4th Aug 2025308 AMAQI
4th Aug 2025349 AMAQI
4th Aug 20253510 AMAQI
4th Aug 20254011 AMAQI
4th Aug 20254212 PMAQI
4th Aug 2025451 PMAQI
4th Aug 2025512 PMAQI
4th Aug 2025543 PMAQI
4th Aug 2025564 PMAQI
4th Aug 2025535 PMAQI
4th Aug 2025606 PMAQI
4th Aug 2025307 PMAQI
4th Aug 2025418 PMAQI
4th Aug 2025539 PMAQI
4th Aug 20255710 PMAQI
4th Aug 20255911 PMAQI
5th Aug 20255812 AMAQI
5th Aug 2025541 AMAQI
5th Aug 2025552 AMAQI
5th Aug 2025543 AMAQI
5th Aug 2025544 AMAQI
5th Aug 2025535 AMAQI

23°C15/34°C

5th Aug 2025536 AMAQI
5th Aug 2025557 AMAQI
5th Aug 2025548 AMAQI
5th Aug 2025539 AMAQI
5th Aug 20255410 AMAQI
5th Aug 20255711 AMAQI
5th Aug 20255612 PMAQI
5th Aug 2025541 PMAQI
5th Aug 2025582 PMAQI
5th Aug 2025623 PMAQI
5th Aug 2025614 PMAQI
5th Aug 2025565 PMAQI
5th Aug 2025556 PMAQI
5th Aug 2025557 PMAQI
5th Aug 2025618 PMAQI
5th Aug 2025609 PMAQI
5th Aug 20256210 PMAQI
5th Aug 20255611 PMAQI
6th Aug 20255712 AMAQI
6th Aug 2025551 AMAQI
6th Aug 2025522 AMAQI
6th Aug 2025543 AMAQI
6th Aug 2025534 AMAQI
6th Aug 2025525 AMAQI

24°C16/35°C

6th Aug 2025516 AMAQI
6th Aug 2025627 AMAQI
6th Aug 2025548 AMAQI
6th Aug 2025569 AMAQI
6th Aug 20255710 AMAQI
6th Aug 20255711 AMAQI
6th Aug 20255612 PMAQI
6th Aug 2025571 PMAQI
6th Aug 2025582 PMAQI
6th Aug 2025533 PMAQI
6th Aug 2025494 PMAQI
6th Aug 2025505 PMAQI
6th Aug 2025496 PMAQI
6th Aug 2025527 PMAQI
6th Aug 2025448 PMAQI
6th Aug 2025319 PMAQI
6th Aug 20253610 PMAQI
6th Aug 20254011 PMAQI
7th Aug 20254912 AMAQI
7th Aug 2025501 AMAQI
7th Aug 2025452 AMAQI
7th Aug 2025383 AMAQI
7th Aug 2025384 AMAQI
7th Aug 2025315 AMAQI

26°C18/37°C

7th Aug 2025326 AMAQI
7th Aug 2025357 AMAQI
7th Aug 2025338 AMAQI
7th Aug 2025359 AMAQI
7th Aug 20253810 AMAQI
7th Aug 20254011 AMAQI
7th Aug 20254412 PMAQI
7th Aug 2025441 PMAQI
7th Aug 2025382 PMAQI
7th Aug 2025343 PMAQI
7th Aug 2025374 PMAQI
7th Aug 2025455 PMAQI
7th Aug 2025506 PMAQI
7th Aug 2025417 PMAQI
7th Aug 2025388 PMAQI
7th Aug 2025469 PMAQI
7th Aug 20254210 PMAQI
7th Aug 20254011 PMAQI
8th Aug 20253812 AMAQI
8th Aug 2025361 AMAQI
8th Aug 2025332 AMAQI
8th Aug 2025363 AMAQI
8th Aug 2025364 AMAQI
8th Aug 2025335 AMAQI

28°C20/39°C

8th Aug 2025296 AMAQI
8th Aug 2025287 AMAQI
8th Aug 2025288 AMAQI
8th Aug 2025299 AMAQI
8th Aug 20252910 AMAQI
8th Aug 20253211 AMAQI
8th Aug 20253512 PMAQI
8th Aug 2025331 PMAQI
8th Aug 2025322 PMAQI
8th Aug 2025323 PMAQI
8th Aug 2025314 PMAQI
8th Aug 2025295 PMAQI
8th Aug 2025286 PMAQI
8th Aug 2025287 PMAQI
8th Aug 2025318 PMAQI
8th Aug 2025289 PMAQI
8th Aug 20252910 PMAQI
8th Aug 20252811 PMAQI
9th Aug 20253012 AMAQI
9th Aug 2025341 AMAQI
9th Aug 2025332 AMAQI
9th Aug 2025313 AMAQI
9th Aug 2025274 AMAQI
9th Aug 2025275 AMAQI

29°C22/39°C

9th Aug 2025336 AMAQI
9th Aug 2025347 AMAQI
9th Aug 2025418 AMAQI
9th Aug 2025439 AMAQI
9th Aug 20253810 AMAQI
9th Aug 20255111 AMAQI
9th Aug 20254712 PMAQI
9th Aug 2025481 PMAQI
9th Aug 2025542 PMAQI
9th Aug 2025403 PMAQI
9th Aug 2025364 PMAQI
9th Aug 2025325 PMAQI
9th Aug 2025326 PMAQI
9th Aug 2025337 PMAQI
9th Aug 2025308 PMAQI
9th Aug 2025289 PMAQI
9th Aug 20252810 PMAQI
9th Aug 20252811 PMAQI
10th Aug 20253312 AMAQI
10th Aug 2025411 AMAQI
10th Aug 2025442 AMAQI
10th Aug 2025423 AMAQI
10th Aug 2025444 AMAQI
10th Aug 2025485 AMAQI

28°C20/39°C

10th Aug 2025466 AMAQI
10th Aug 2025507 AMAQI
10th Aug 2025498 AMAQI
10th Aug 2025459 AMAQI
10th Aug 20253510 AMAQI
10th Aug 20253911 AMAQI
10th Aug 20254112 PMAQI
10th Aug 2025551 PMAQI
10th Aug 2025542 PMAQI
10th Aug 2025553 PMAQI
10th Aug 2025554 PMAQI
10th Aug 2025545 PMAQI
10th Aug 2025526 PMAQI
10th Aug 2025487 PMAQI
10th Aug 2025488 PMAQI
10th Aug 2025469 PMAQI
10th Aug 20254610 PMAQI
10th Aug 20256311 PMAQI
11th Aug 20256012 AMAQI
11th Aug 2025801 AMAQI
11th Aug 2025892 AMAQI
11th Aug 2025613 AMAQI
11th Aug 2025534 AMAQI
11th Aug 2025445 AMAQI

28°C20/37°C

11th Aug 2025466 AMAQI
11th Aug 2025467 AMAQI
11th Aug 2025538 AMAQI
11th Aug 2025499 AMAQI
11th Aug 20255010 AMAQI
11th Aug 20255011 AMAQI
11th Aug 20254012 PMAQI
11th Aug 2025391 PMAQI
11th Aug 2025422 PMAQI
11th Aug 2025483 PMAQI
11th Aug 2025444 PMAQI
11th Aug 2025485 PMAQI
11th Aug 2025426 PMAQI
11th Aug 2025617 PMAQI
11th Aug 2025498 PMAQI
11th Aug 2025439 PMAQI
11th Aug 20254210 PMAQI
11th Aug 20254911 PMAQI
12th Aug 20254712 AMAQI
12th Aug 2025441 AMAQI
12th Aug 2025442 AMAQI
12th Aug 2025443 AMAQI
12th Aug 2025444 AMAQI
12th Aug 2025415 AMAQI

26°C20/36°C

12th Aug 2025356 AMAQI
12th Aug 2025367 AMAQI
12th Aug 2025348 AMAQI
12th Aug 2025369 AMAQI
12th Aug 20254110 AMAQI
12th Aug 20254011 AMAQI
12th Aug 20253612 PMAQI
12th Aug 2025341 PMAQI
12th Aug 2025352 PMAQI
12th Aug 2025343 PMAQI
12th Aug 2025344 PMAQI
12th Aug 2025395 PMAQI
12th Aug 2025446 PMAQI
12th Aug 2025357 PMAQI
12th Aug 2025428 PMAQI
12th Aug 2025529 PMAQI
12th Aug 20255310 PMAQI
12th Aug 20255211 PMAQI
13th Aug 20255212 AMAQI
13th Aug 2025511 AMAQI
13th Aug 2025522 AMAQI
13th Aug 2025473 AMAQI
13th Aug 2025484 AMAQI
13th Aug 2025455 AMAQI

27°C19/36°C

13th Aug 2025526 AMAQI
13th Aug 2025527 AMAQI
13th Aug 2025568 AMAQI
13th Aug 2025609 AMAQI
13th Aug 20255510 AMAQI
13th Aug 20255411 AMAQI
13th Aug 20254812 PMAQI
13th Aug 2025491 PMAQI
13th Aug 2025472 PMAQI
13th Aug 2025453 PMAQI
13th Aug 2025504 PMAQI
13th Aug 2025535 PMAQI
13th Aug 2025506 PMAQI
13th Aug 2025517 PMAQI
13th Aug 2025528 PMAQI
13th Aug 2025539 PMAQI
13th Aug 20255410 PMAQI
13th Aug 20255611 PMAQI
14th Aug 20255612 AMAQI
14th Aug 2025561 AMAQI
14th Aug 2025542 AMAQI
14th Aug 2025523 AMAQI
14th Aug 2025524 AMAQI
14th Aug 2025505 AMAQI

25°C18/35°C

14th Aug 2025526 AMAQI
14th Aug 2025547 AMAQI
14th Aug 2025538 AMAQI
14th Aug 2025559 AMAQI
14th Aug 20255810 AMAQI
14th Aug 20255911 AMAQI
14th Aug 20256012 PMAQI
14th Aug 2025601 PMAQI
14th Aug 2025562 PMAQI
14th Aug 2025543 PMAQI
14th Aug 2025524 PMAQI
14th Aug 2025565 PMAQI
14th Aug 2025526 PMAQI
14th Aug 2025557 PMAQI
14th Aug 2025548 PMAQI
14th Aug 2025499 PMAQI
14th Aug 20255110 PMAQI
14th Aug 20255111 PMAQI
15th Aug 20254912 AMAQI
15th Aug 2025511 AMAQI
15th Aug 2025482 AMAQI
15th Aug 2025473 AMAQI
15th Aug 2025424 AMAQI
15th Aug 2025445 AMAQI

25°C17/33°C

15th Aug 2025466 AMAQI
15th Aug 2025447 AMAQI
15th Aug 2025448 AMAQI
15th Aug 2025469 AMAQI
15th Aug 20254410 AMAQI
15th Aug 20254711 AMAQI
15th Aug 20255112 PMAQI
15th Aug 2025521 PMAQI
15th Aug 2025512 PMAQI
15th Aug 2025463 PMAQI
15th Aug 2025454 PMAQI
15th Aug 2025475 PMAQI
15th Aug 2025436 PMAQI
15th Aug 2025467 PMAQI
15th Aug 2025448 PMAQI
15th Aug 2025389 PMAQI
15th Aug 20253610 PMAQI
15th Aug 20253411 PMAQI
16th Aug 20253212 AMAQI
16th Aug 2025311 AMAQI
16th Aug 2025322 AMAQI
16th Aug 2025303 AMAQI
16th Aug 2025294 AMAQI
16th Aug 2025265 AMAQI

22°C16/31°C

16th Aug 2025306 AMAQI
16th Aug 2025277 AMAQI
16th Aug 2025278 AMAQI
16th Aug 2025289 AMAQI
16th Aug 20253510 AMAQI
16th Aug 20253211 AMAQI
16th Aug 20253212 PMAQI
16th Aug 2025361 PMAQI
16th Aug 2025372 PMAQI
16th Aug 2025313 PMAQI
16th Aug 2025324 PMAQI
16th Aug 2025265 PMAQI
16th Aug 2025236 PMAQI
16th Aug 2025287 PMAQI
16th Aug 2025288 PMAQI
16th Aug 2025249 PMAQI
16th Aug 20252510 PMAQI
16th Aug 20252411 PMAQI
17th Aug 20252312 AMAQI
17th Aug 2025261 AMAQI
17th Aug 2025222 AMAQI
17th Aug 2025203 AMAQI
17th Aug 2025234 AMAQI
17th Aug 2025225 AMAQI

21°C14/30°C

17th Aug 2025226 AMAQI
17th Aug 2025227 AMAQI
17th Aug 2025228 AMAQI
17th Aug 2025219 AMAQI
17th Aug 20252510 AMAQI
17th Aug 20252511 AMAQI
17th Aug 20252312 PMAQI
17th Aug 2025221 PMAQI
17th Aug 2025182 PMAQI
17th Aug 2025203 PMAQI
17th Aug 2025164 PMAQI
17th Aug 2025145 PMAQI
17th Aug 2025146 PMAQI
17th Aug 2025237 PMAQI
17th Aug 2025218 PMAQI
17th Aug 2025169 PMAQI
17th Aug 20251710 PMAQI
17th Aug 20251911 PMAQI
18th Aug 20252312 AMAQI
18th Aug 2025241 AMAQI
18th Aug 2025242 AMAQI
18th Aug 2025223 AMAQI
18th Aug 2025214 AMAQI
18th Aug 2025225 AMAQI

22°C13/31°C

18th Aug 2025216 AMAQI
6 AM
18th Aug 2025247 AMAQI
18th Aug 2025268 AMAQI
18th Aug 2025249 AMAQI
18th Aug 20252610 AMAQI
18th Aug 20252311 AMAQI
18th Aug 20252212 PMAQI
12 PM
18th Aug 2025211 PMAQI
18th Aug 2025202 PMAQI
7 PM
12 AM
5 AM

--°C/°C

Day time
Avg. Highest Time
7 AM - 7 PM

35AQI

13 hours / Day
390 hours / Month
Avg. Lowest Time
6 AM

32AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 AM to 7 PM (Avg. 35), while the lowest AQI was between 6 AM to 6 AM (Avg. 32).
Night time
Avg. Highest Time
12 AM - 3 AM

36AQI

4 hours / Day
120 hours / Month
Avg. Lowest Time
5 AM

31AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 3 AM (Avg. 36), while the lowest AQI was between 5 AM to 5 AM (Avg. 31).

2025 Days Vs Air Quality

Vail, Colorado, United States

2025

98%

224

2%

5

Total number of days with different AQI categories in last 230 days in 2025 (135 days remaining)

Good
224 Days
Moderate
5 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 98%

Health Risk Level:

Very Low

In 2025, 98% of 230 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

Vail, 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 January 2025
35AQI
2nd January 2025
35AQI
3rd January 2025
28AQI
4th January 2025
25AQI
5th January 2025
21AQI
6th January 2025
23AQI
7th January 2025
27AQI
8th January 2025
32AQI
9th January 2025
22AQI
10th January 2025
25AQI
11th January 2025
23AQI
12th January 2025
22AQI
13th January 2025
26AQI
14th January 2025
26AQI
15th January 2025
25AQI
16th January 2025
24AQI
17th January 2025
27AQI
18th January 2025
26AQI
19th January 2025
21AQI
20th January 2025
22AQI
21st January 2025
23AQI
22nd January 2025
26AQI
23rd January 2025
24AQI
24th January 2025
26AQI
25th January 2025
25AQI
26th January 2025
32AQI
27th January 2025
33AQI
28th January 2025
29AQI
29th January 2025
31AQI
30th January 2025
27AQI
31st January 2025
28AQI
1st February 2025
24AQI
2nd February 2025
25AQI
3rd February 2025
25AQI
4th February 2025
27AQI
5th February 2025
25AQI
6th February 2025
24AQI
7th February 2025
25AQI
8th February 2025
23AQI
9th February 2025
21AQI
10th February 2025
23AQI
11th February 2025
27AQI
12th February 2025
24AQI
13th February 2025
20AQI
14th February 2025
21AQI
15th February 2025
20AQI
16th February 2025
17AQI
17th February 2025
18AQI
18th February 2025
20AQI
19th February 2025
18AQI
20th February 2025
22AQI
21st February 2025
21AQI
22nd February 2025
18AQI
23rd February 2025
17AQI
24th February 2025
16AQI
25th February 2025
18AQI
26th February 2025
17AQI
27th February 2025
17AQI
28th February 2025
19AQI
1st March 2025
21AQI
2nd March 2025
19AQI
3rd March 2025
20AQI
4th March 2025
18AQI
5th March 2025
18AQI
6th March 2025
16AQI
7th March 2025
14AQI
8th March 2025
15AQI
9th March 2025
15AQI
10th March 2025
18AQI
11th March 2025
16AQI
12th March 2025
18AQI
13th March 2025
21AQI
14th March 2025
33AQI
15th March 2025
18AQI
16th March 2025
17AQI
17th March 2025
22AQI
18th March 2025
23AQI
19th March 2025
21AQI
20th March 2025
24AQI
21st March 2025
19AQI
22nd March 2025
19AQI
23rd March 2025
18AQI
24th March 2025
17AQI
25th March 2025
19AQI
26th March 2025
20AQI
27th March 2025
24AQI
28th March 2025
29AQI
29th March 2025
26AQI
30th March 2025
30AQI
31st March 2025
30AQI
1st April 2025
20AQI
2nd April 2025
16AQI
3rd April 2025
16AQI
4th April 2025
17AQI
5th April 2025
15AQI
6th April 2025
15AQI
7th April 2025
21AQI
8th April 2025
22AQI
9th April 2025
31AQI
10th April 2025
33AQI
11th April 2025
30AQI
12th April 2025
22AQI
13th April 2025
19AQI
14th April 2025
19AQI
15th April 2025
20AQI
16th April 2025
20AQI
17th April 2025
24AQI
18th April 2025
17AQI
19th April 2025
15AQI
20th April 2025
15AQI
21st April 2025
15AQI
22nd April 2025
17AQI
23rd April 2025
17AQI
24th April 2025
19AQI
25th April 2025
16AQI
26th April 2025
16AQI
27th April 2025
19AQI
28th April 2025
15AQI
29th April 2025
14AQI
30th April 2025
15AQI
1st May 2025
16AQI
2nd May 2025
18AQI
3rd May 2025
22AQI
4th May 2025
19AQI
5th May 2025
16AQI
6th May 2025
13AQI
7th May 2025
19AQI
8th May 2025
18AQI
9th May 2025
18AQI
10th May 2025
20AQI
11th May 2025
19AQI
12th May 2025
22AQI
13th May 2025
23AQI
14th May 2025
22AQI
15th May 2025
15AQI
16th May 2025
14AQI
17th May 2025
15AQI
18th May 2025
18AQI
19th May 2025
14AQI
20th May 2025
16AQI
21st May 2025
17AQI
22nd May 2025
18AQI
23rd May 2025
23AQI
24th May 2025
21AQI
25th May 2025
17AQI
26th May 2025
17AQI
27th May 2025
18AQI
28th May 2025
18AQI
29th May 2025
17AQI
30th May 2025
22AQI
31st May 2025
29AQI
1st June 2025
21AQI
2nd June 2025
19AQI
3rd June 2025
18AQI
4th June 2025
20AQI
5th June 2025
19AQI
6th June 2025
19AQI
7th June 2025
21AQI
8th June 2025
25AQI
9th June 2025
27AQI
10th June 2025
25AQI
11th June 2025
21AQI
12th June 2025
21AQI
13th June 2025
24AQI
14th June 2025
26AQI
15th June 2025
23AQI
16th June 2025
24AQI
17th June 2025
21AQI
18th June 2025
22AQI
19th June 2025
23AQI
20th June 2025
31AQI
21st June 2025
32AQI
22nd June 2025
29AQI
23rd June 2025
24AQI
24th June 2025
25AQI
25th June 2025
24AQI
26th June 2025
22AQI
27th June 2025
32AQI
28th June 2025
31AQI
29th June 2025
27AQI
30th June 2025
23AQI
1st July 2025
24AQI
2nd July 2025
23AQI
3rd July 2025
22AQI
4th July 2025
24AQI
5th July 2025
28AQI
6th July 2025
27AQI
7th July 2025
27AQI
8th July 2025
27AQI
9th July 2025
28AQI
10th July 2025
32AQI
11th July 2025
47AQI
12th July 2025
45AQI
13th July 2025
36AQI
14th July 2025
28AQI
15th July 2025
30AQI
16th July 2025
46AQI
17th July 2025
42AQI
18th July 2025
41AQI
19th July 2025
30AQI
20th July 2025
26AQI
21st July 2025
24AQI
22nd July 2025
22AQI
23rd July 2025
21AQI
24th July 2025
28AQI
25th July 2025
35AQI
26th July 2025
34AQI
27th July 2025
29AQI
28th July 2025
28AQI
29th July 2025
30AQI
30th July 2025
34AQI
31st July 2025
40AQI
1st August 2025
32AQI
2nd August 2025
22AQI
3rd August 2025
22AQI
4th August 2025
39AQI
5th August 2025
56AQI
6th August 2025
51AQI
7th August 2025
41AQI
8th August 2025
32AQI
9th August 2025
34AQI
10th August 2025
47AQI
11th August 2025
52AQI
12th August 2025
42AQI
13th August 2025
51AQI
14th August 2025
54AQI
15th August 2025
45AQI
16th August 2025
29AQI
17th August 2025
22AQI

26AQI

21AQI

21AQI

19AQI

19AQI

24AQI

31AQI

39AQI

No. of days

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

202524AQI

31
28
31
30
31
30
31
12
5
224
5

Highest AQI recorded in

August

39AQI

Lowest AQI recorded in

May

19AQI

202424AQI

16
9
1
18
27
29
28
3
29
2
26
2
30
1
30
31
274
8

Highest AQI recorded in

September

42AQI

Lowest AQI recorded in

April

9AQI

202327AQI

5
12
14
1
4
12
1
3
31
67
15
1

Highest AQI recorded in

August

57AQI

Lowest AQI recorded in

November

7AQI

202217AQI

3
4
1
1
7
2

Highest AQI recorded in

October

52AQI

Lowest AQI recorded in

May

5AQI

20218AQI

2
13
6
21

Highest AQI recorded in

April

17AQI

Lowest AQI recorded in

May

5AQI

202036AQI

1
10
5
1
11
6

Highest AQI recorded in

August

59AQI

Lowest AQI recorded in

October

9AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2020(Avg.)
36AQI
Least Polluted Year Recorded
2021(Avg.)
8AQI

Vail's annual 2025 AQI (24) shows an average percentage change of 40.2% (worsened AQI) compared to previous years: 2020 (36), 2021 (8), 2022 (17), 2023 (27), 2024 (24).