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
2026
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 (1st August):
On this day, AQI across the 4 years varied significantly: 2026 ranks 3rd highest AQI at 19 of Good air quality, showing improvement over 2025 and 2024 on the same day.

Day & Night AQI Trend: 1st Aug - 2nd Aug 2026

Vail, Colorado, United States

AQI
Day
Night
.

5 AM1st Aug 2026

8 PM

4 AM2nd Aug 2026

Day time
Avg. Highest Time
6AM1st Aug

21AQI

Avg. Lowest Time
6PM1st Aug

17AQI

Night time
Avg. Highest Time
5AM1st Aug

21AQI

Avg. Lowest Time
2AM2nd Aug

17AQI

In the last 24 hours,

Vail's AQI reached its highest point of 21 at 5 AM during the Night, while the lowest point, 17, was recorded at 2 AM during the Night between 1st Aug and 2nd Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Vail, Colorado, United States

JulAug
04th - 05th05th - 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
Day
Night
4th Jul 2026195 AMAQI
4th Jul 2026186 AMAQI
4th Jul 2026187 AMAQI
4th Jul 2026198 AMAQI
4th Jul 2026199 AMAQI
4th Jul 20262110 AMAQI
4th Jul 20262011 AMAQI
4th Jul 20262212 PMAQI
4th Jul 2026231 PMAQI
4th Jul 2026202 PMAQI
4th Jul 2026203 PMAQI
4th Jul 2026204 PMAQI
4th Jul 2026205 PMAQI
4th Jul 2026206 PMAQI
4th Jul 2026177 PMAQI
4th Jul 2026168 PMAQI
4th Jul 2026169 PMAQI
4th Jul 20261510 PMAQI
4th Jul 20261411 PMAQI
5th Jul 20261612 AMAQI
5th Jul 2026171 AMAQI
5th Jul 2026162 AMAQI
5th Jul 2026183 AMAQI
5th Jul 2026164 AMAQI

16°C3/26°C

5th Jul 2026155 AMAQI
5th Jul 2026246 AMAQI
5th Jul 2026277 AMAQI
5th Jul 2026348 AMAQI
5th Jul 2026229 AMAQI
5th Jul 20262210 AMAQI
5th Jul 20262211 AMAQI
5th Jul 20262412 PMAQI
5th Jul 2026251 PMAQI
5th Jul 2026232 PMAQI
5th Jul 2026223 PMAQI
5th Jul 2026224 PMAQI
5th Jul 2026265 PMAQI
5th Jul 2026246 PMAQI
5th Jul 2026237 PMAQI
5th Jul 2026288 PMAQI
5th Jul 2026309 PMAQI
5th Jul 20263110 PMAQI
5th Jul 20263011 PMAQI
6th Jul 20262912 AMAQI
6th Jul 2026301 AMAQI
6th Jul 2026282 AMAQI
6th Jul 2026273 AMAQI
6th Jul 2026264 AMAQI

17°C4/30°C

6th Jul 2026265 AMAQI
6th Jul 2026276 AMAQI
6th Jul 2026267 AMAQI
6th Jul 2026288 AMAQI
6th Jul 2026329 AMAQI
6th Jul 20264210 AMAQI
6th Jul 20264011 AMAQI
6th Jul 20264212 PMAQI
6th Jul 2026381 PMAQI
6th Jul 2026362 PMAQI
6th Jul 2026323 PMAQI
6th Jul 2026304 PMAQI
6th Jul 2026325 PMAQI
6th Jul 2026346 PMAQI
6th Jul 2026387 PMAQI
6th Jul 2026408 PMAQI
6th Jul 2026349 PMAQI
6th Jul 20263510 PMAQI
6th Jul 20263011 PMAQI
7th Jul 20263312 AMAQI
7th Jul 2026311 AMAQI
7th Jul 2026312 AMAQI
7th Jul 2026313 AMAQI
7th Jul 2026344 AMAQI

19°C6/30°C

7th Jul 2026325 AMAQI
7th Jul 2026336 AMAQI
7th Jul 2026367 AMAQI
7th Jul 2026368 AMAQI
7th Jul 2026409 AMAQI
7th Jul 20264410 AMAQI
7th Jul 20264711 AMAQI
7th Jul 20267912 PMAQI
7th Jul 2026621 PMAQI
7th Jul 2026482 PMAQI
7th Jul 2026433 PMAQI
7th Jul 2026444 PMAQI
7th Jul 2026365 PMAQI
7th Jul 2026336 PMAQI
7th Jul 2026267 PMAQI
7th Jul 2026218 PMAQI
7th Jul 2026209 PMAQI
7th Jul 20262010 PMAQI
7th Jul 20261811 PMAQI
8th Jul 20261612 AMAQI
8th Jul 2026161 AMAQI
8th Jul 2026162 AMAQI
8th Jul 2026153 AMAQI
8th Jul 2026114 AMAQI

16°C7/27°C

8th Jul 2026115 AMAQI
8th Jul 2026146 AMAQI
8th Jul 2026107 AMAQI
8th Jul 2026118 AMAQI
8th Jul 2026139 AMAQI
8th Jul 20261510 AMAQI
8th Jul 20261611 AMAQI
8th Jul 20261612 PMAQI
8th Jul 2026211 PMAQI
8th Jul 2026182 PMAQI
8th Jul 2026183 PMAQI
8th Jul 2026184 PMAQI
8th Jul 2026205 PMAQI
8th Jul 2026206 PMAQI
8th Jul 2026167 PMAQI
8th Jul 2026148 PMAQI
8th Jul 2026149 PMAQI
8th Jul 20261410 PMAQI
8th Jul 20261311 PMAQI
9th Jul 20261212 AMAQI
9th Jul 2026111 AMAQI
9th Jul 2026102 AMAQI
9th Jul 2026103 AMAQI
9th Jul 2026114 AMAQI

16°C6/27°C

9th Jul 202685 AMAQI
9th Jul 202696 AMAQI
9th Jul 2026107 AMAQI
9th Jul 202698 AMAQI
9th Jul 2026109 AMAQI
9th Jul 20261010 AMAQI
9th Jul 20261011 AMAQI
9th Jul 20261012 PMAQI
9th Jul 2026141 PMAQI
9th Jul 2026142 PMAQI
9th Jul 2026163 PMAQI
9th Jul 2026174 PMAQI
9th Jul 2026145 PMAQI
9th Jul 2026136 PMAQI
9th Jul 2026147 PMAQI
9th Jul 2026128 PMAQI
9th Jul 2026109 PMAQI
9th Jul 20261110 PMAQI
9th Jul 20261011 PMAQI
10th Jul 20261212 AMAQI
10th Jul 2026101 AMAQI
10th Jul 2026142 AMAQI
10th Jul 2026123 AMAQI
10th Jul 2026104 AMAQI

13°C6/26°C

10th Jul 202695 AMAQI
10th Jul 2026326 AMAQI
10th Jul 202697 AMAQI
10th Jul 2026118 AMAQI
10th Jul 2026109 AMAQI
10th Jul 20261210 AMAQI
10th Jul 20261211 AMAQI
10th Jul 20261512 PMAQI
10th Jul 2026141 PMAQI
10th Jul 2026142 PMAQI
10th Jul 2026163 PMAQI
10th Jul 2026144 PMAQI
10th Jul 2026155 PMAQI
10th Jul 2026176 PMAQI
10th Jul 2026167 PMAQI
10th Jul 2026148 PMAQI
10th Jul 2026129 PMAQI
10th Jul 20261310 PMAQI
10th Jul 20261411 PMAQI
11th Jul 20261412 AMAQI
11th Jul 2026141 AMAQI
11th Jul 2026142 AMAQI
11th Jul 2026133 AMAQI
11th Jul 2026104 AMAQI

16°C4/27°C

11th Jul 2026135 AMAQI
11th Jul 2026126 AMAQI
11th Jul 2026167 AMAQI
11th Jul 2026108 AMAQI
11th Jul 2026139 AMAQI
11th Jul 20261410 AMAQI
11th Jul 20261411 AMAQI
11th Jul 20261412 PMAQI
11th Jul 2026151 PMAQI
11th Jul 2026152 PMAQI
11th Jul 2026163 PMAQI
11th Jul 2026164 PMAQI
11th Jul 2026165 PMAQI
11th Jul 2026166 PMAQI
11th Jul 2026167 PMAQI
11th Jul 2026148 PMAQI
11th Jul 2026159 PMAQI
11th Jul 20262110 PMAQI
11th Jul 20261811 PMAQI
12th Jul 20261612 AMAQI
12th Jul 2026141 AMAQI
12th Jul 2026142 AMAQI
12th Jul 2026143 AMAQI
12th Jul 2026124 AMAQI

18°C6/31°C

12th Jul 2026115 AMAQI
12th Jul 2026116 AMAQI
12th Jul 2026127 AMAQI
12th Jul 2026118 AMAQI
12th Jul 2026129 AMAQI
12th Jul 20261610 AMAQI
12th Jul 20261411 AMAQI
12th Jul 20261412 PMAQI
12th Jul 2026151 PMAQI
12th Jul 2026162 PMAQI
12th Jul 2026193 PMAQI
12th Jul 2026184 PMAQI
12th Jul 2026185 PMAQI
12th Jul 2026186 PMAQI
12th Jul 2026187 PMAQI
12th Jul 2026188 PMAQI
12th Jul 2026189 PMAQI
12th Jul 20261710 PMAQI
12th Jul 20261611 PMAQI
13th Jul 20261712 AMAQI
13th Jul 2026181 AMAQI
13th Jul 2026192 AMAQI
13th Jul 2026193 AMAQI
13th Jul 2026154 AMAQI

20°C7/33°C

13th Jul 2026115 AMAQI
13th Jul 2026116 AMAQI
13th Jul 2026107 AMAQI
13th Jul 2026138 AMAQI
13th Jul 2026189 AMAQI
13th Jul 20262010 AMAQI
13th Jul 20262411 AMAQI
13th Jul 20262612 PMAQI
13th Jul 2026271 PMAQI
13th Jul 2026292 PMAQI
13th Jul 2026313 PMAQI
13th Jul 2026284 PMAQI
13th Jul 2026285 PMAQI
13th Jul 2026286 PMAQI
13th Jul 2026247 PMAQI
13th Jul 2026208 PMAQI
13th Jul 2026259 PMAQI
13th Jul 20262310 PMAQI
13th Jul 20262311 PMAQI
14th Jul 20262012 AMAQI
14th Jul 2026201 AMAQI
14th Jul 2026262 AMAQI
14th Jul 2026253 AMAQI
14th Jul 2026224 AMAQI

20°C8/33°C

14th Jul 2026285 AMAQI
14th Jul 2026256 AMAQI
14th Jul 2026247 AMAQI
14th Jul 2026278 AMAQI
14th Jul 2026329 AMAQI
14th Jul 20263410 AMAQI
14th Jul 20265211 AMAQI
14th Jul 20264812 PMAQI
14th Jul 2026461 PMAQI
14th Jul 2026422 PMAQI
14th Jul 2026363 PMAQI
14th Jul 2026304 PMAQI
14th Jul 2026285 PMAQI
14th Jul 2026266 PMAQI
14th Jul 2026257 PMAQI
14th Jul 2026328 PMAQI
14th Jul 2026259 PMAQI
14th Jul 20262410 PMAQI
14th Jul 20262411 PMAQI
15th Jul 20262012 AMAQI
15th Jul 2026171 AMAQI
15th Jul 2026152 AMAQI
15th Jul 2026153 AMAQI
15th Jul 2026144 AMAQI

20°C8/34°C

15th Jul 2026145 AMAQI
15th Jul 2026116 AMAQI
15th Jul 2026127 AMAQI
15th Jul 2026158 AMAQI
15th Jul 2026209 AMAQI
15th Jul 20262510 AMAQI
15th Jul 20263111 AMAQI
15th Jul 20263012 PMAQI
15th Jul 2026281 PMAQI
15th Jul 2026302 PMAQI
15th Jul 2026303 PMAQI
15th Jul 2026284 PMAQI
15th Jul 2026245 PMAQI
15th Jul 2026226 PMAQI
15th Jul 2026207 PMAQI
15th Jul 2026198 PMAQI
15th Jul 2026229 PMAQI
15th Jul 20262010 PMAQI
15th Jul 20262111 PMAQI
16th Jul 20262212 AMAQI
16th Jul 2026181 AMAQI
16th Jul 2026182 AMAQI
16th Jul 2026173 AMAQI
16th Jul 2026124 AMAQI

20°C7/32°C

16th Jul 2026125 AMAQI
16th Jul 2026136 AMAQI
16th Jul 2026147 AMAQI
16th Jul 2026178 AMAQI
16th Jul 2026189 AMAQI
16th Jul 20262010 AMAQI
16th Jul 20262411 AMAQI
16th Jul 20262612 PMAQI
16th Jul 2026271 PMAQI
16th Jul 2026282 PMAQI
16th Jul 2026263 PMAQI
16th Jul 2026224 PMAQI
16th Jul 2026275 PMAQI
16th Jul 2026306 PMAQI
16th Jul 2026327 PMAQI
16th Jul 2026288 PMAQI
16th Jul 2026269 PMAQI
16th Jul 20262710 PMAQI
16th Jul 20262611 PMAQI
17th Jul 20262412 AMAQI
17th Jul 2026191 AMAQI
17th Jul 2026222 AMAQI
17th Jul 2026203 AMAQI
17th Jul 2026214 AMAQI

18°C7/31°C

17th Jul 2026175 AMAQI
17th Jul 2026176 AMAQI
17th Jul 2026217 AMAQI
17th Jul 2026218 AMAQI
17th Jul 2026179 AMAQI
17th Jul 20262310 AMAQI
17th Jul 20261911 AMAQI
17th Jul 20262012 PMAQI
17th Jul 2026201 PMAQI
17th Jul 2026252 PMAQI
17th Jul 2026233 PMAQI
17th Jul 2026254 PMAQI
17th Jul 2026255 PMAQI
17th Jul 2026186 PMAQI
17th Jul 2026127 PMAQI
17th Jul 2026218 PMAQI
17th Jul 2026219 PMAQI
17th Jul 20262310 PMAQI
17th Jul 20262111 PMAQI
18th Jul 20262112 AMAQI
18th Jul 2026191 AMAQI
18th Jul 2026232 AMAQI
18th Jul 2026163 AMAQI
18th Jul 2026144 AMAQI

18°C7/28°C

18th Jul 2026175 AMAQI
18th Jul 2026216 AMAQI
18th Jul 2026217 AMAQI
18th Jul 2026218 AMAQI
18th Jul 2026179 AMAQI
18th Jul 20262110 AMAQI
18th Jul 20262111 AMAQI
18th Jul 20262112 PMAQI
18th Jul 2026211 PMAQI
18th Jul 2026212 PMAQI
18th Jul 2026213 PMAQI
18th Jul 2026234 PMAQI
18th Jul 2026235 PMAQI
18th Jul 2026256 PMAQI
18th Jul 2026237 PMAQI
18th Jul 2026258 PMAQI
18th Jul 2026239 PMAQI
18th Jul 20262510 PMAQI
18th Jul 20261611 PMAQI
19th Jul 20262112 AMAQI
19th Jul 2026171 AMAQI
19th Jul 2026172 AMAQI
19th Jul 2026173 AMAQI
19th Jul 2026214 AMAQI

19°C8/30°C

19th Jul 2026165 AMAQI
19th Jul 2026196 AMAQI
19th Jul 2026147 AMAQI
19th Jul 2026198 AMAQI
19th Jul 2026149 AMAQI
19th Jul 20262310 AMAQI
19th Jul 20262311 AMAQI
19th Jul 20261912 PMAQI
19th Jul 2026171 PMAQI
19th Jul 2026192 PMAQI
19th Jul 2026173 PMAQI
19th Jul 2026194 PMAQI
19th Jul 2026195 PMAQI
19th Jul 2026126 PMAQI
19th Jul 2026167 PMAQI
19th Jul 2026218 PMAQI
19th Jul 2026199 PMAQI
19th Jul 20261710 PMAQI
19th Jul 20261711 PMAQI
20th Jul 20261812 AMAQI
20th Jul 2026161 AMAQI
20th Jul 2026152 AMAQI
20th Jul 2026133 AMAQI
20th Jul 2026144 AMAQI

19°C8/31°C

20th Jul 2026175 AMAQI
20th Jul 2026176 AMAQI
20th Jul 2026197 AMAQI
20th Jul 2026268 AMAQI
20th Jul 2026329 AMAQI
20th Jul 20263010 AMAQI
20th Jul 20261711 AMAQI
20th Jul 20262312 PMAQI
20th Jul 2026271 PMAQI
20th Jul 2026292 PMAQI
20th Jul 2026253 PMAQI
20th Jul 2026254 PMAQI
20th Jul 2026215 PMAQI
20th Jul 2026226 PMAQI
20th Jul 2026257 PMAQI
20th Jul 2026278 PMAQI
20th Jul 20262510 PMAQI
20th Jul 20262111 PMAQI
21st Jul 20263312 AMAQI
21st Jul 2026211 AMAQI
21st Jul 2026212 AMAQI
21st Jul 2026293 AMAQI
21st Jul 2026254 AMAQI

19°C9/33°C

21st Jul 2026215 AMAQI
21st Jul 2026256 AMAQI
21st Jul 2026197 AMAQI
21st Jul 2026258 AMAQI
21st Jul 2026279 AMAQI
21st Jul 20262510 AMAQI
21st Jul 20262711 AMAQI
21st Jul 20262912 PMAQI
21st Jul 2026251 PMAQI
21st Jul 2026252 PMAQI
21st Jul 2026213 PMAQI
21st Jul 2026234 PMAQI
21st Jul 2026215 PMAQI
21st Jul 2026236 PMAQI
21st Jul 2026197 PMAQI
21st Jul 2026178 PMAQI
21st Jul 2026209 PMAQI
21st Jul 20262010 PMAQI
21st Jul 20261711 PMAQI
22nd Jul 20262012 AMAQI
22nd Jul 2026191 AMAQI
22nd Jul 2026162 AMAQI
22nd Jul 2026213 AMAQI
22nd Jul 2026174 AMAQI

19°C9/33°C

22nd Jul 2026195 AMAQI
22nd Jul 2026216 AMAQI
22nd Jul 2026217 AMAQI
22nd Jul 2026218 AMAQI
22nd Jul 2026219 AMAQI
22nd Jul 20262110 AMAQI
22nd Jul 20261711 AMAQI
22nd Jul 20261812 PMAQI
22nd Jul 2026171 PMAQI
22nd Jul 2026172 PMAQI
22nd Jul 2026133 PMAQI
22nd Jul 2026174 PMAQI
22nd Jul 2026175 PMAQI
22nd Jul 2026146 PMAQI
22nd Jul 2026107 PMAQI
22nd Jul 2026178 PMAQI
22nd Jul 2026199 PMAQI
22nd Jul 20262110 PMAQI
22nd Jul 20262511 PMAQI
23rd Jul 20261712 AMAQI
23rd Jul 2026291 AMAQI
23rd Jul 2026322 AMAQI
23rd Jul 2026383 AMAQI
23rd Jul 2026364 AMAQI

17°C10/28°C

23rd Jul 2026255 AMAQI
23rd Jul 2026256 AMAQI
23rd Jul 2026257 AMAQI
23rd Jul 2026258 AMAQI
23rd Jul 2026259 AMAQI
23rd Jul 20261910 AMAQI
23rd Jul 20262511 AMAQI
23rd Jul 20262512 PMAQI
23rd Jul 2026251 PMAQI
23rd Jul 2026212 PMAQI
23rd Jul 2026213 PMAQI
23rd Jul 2026124 PMAQI
23rd Jul 2026175 PMAQI
23rd Jul 2026106 PMAQI
23rd Jul 2026167 PMAQI
23rd Jul 2026148 PMAQI
23rd Jul 2026219 PMAQI
23rd Jul 20262110 PMAQI
23rd Jul 20262311 PMAQI
24th Jul 20262112 AMAQI
24th Jul 2026161 AMAQI
24th Jul 2026212 AMAQI
24th Jul 2026213 AMAQI
24th Jul 2026194 AMAQI

16°C9/24°C

24th Jul 2026175 AMAQI
24th Jul 2026196 AMAQI
24th Jul 2026197 AMAQI
24th Jul 2026178 AMAQI
24th Jul 2026289 AMAQI
24th Jul 20262110 AMAQI
24th Jul 20261711 AMAQI
24th Jul 20263012 PMAQI
24th Jul 2026191 PMAQI
24th Jul 2026232 PMAQI
24th Jul 2026233 PMAQI
24th Jul 2026234 PMAQI
24th Jul 2026215 PMAQI
24th Jul 2026176 PMAQI
24th Jul 2026217 PMAQI
24th Jul 2026268 PMAQI
24th Jul 2026179 PMAQI
24th Jul 20261910 PMAQI
24th Jul 20262111 PMAQI
25th Jul 20261712 AMAQI
25th Jul 2026161 AMAQI
25th Jul 2026212 AMAQI
25th Jul 2026233 AMAQI
25th Jul 2026214 AMAQI

19°C9/30°C

25th Jul 2026305 AMAQI
25th Jul 2026196 AMAQI
25th Jul 2026307 AMAQI
25th Jul 2026128 AMAQI
25th Jul 2026119 AMAQI
25th Jul 20262110 AMAQI
25th Jul 20261711 AMAQI
25th Jul 20262112 PMAQI
25th Jul 2026211 PMAQI
25th Jul 2026172 PMAQI
25th Jul 2026143 PMAQI
25th Jul 2026174 PMAQI
25th Jul 2026195 PMAQI
25th Jul 2026176 PMAQI
25th Jul 2026197 PMAQI
25th Jul 2026178 PMAQI
25th Jul 2026179 PMAQI
25th Jul 20261710 PMAQI
25th Jul 20261311 PMAQI
26th Jul 20261712 AMAQI
26th Jul 2026281 AMAQI
26th Jul 2026252 AMAQI
26th Jul 2026173 AMAQI
26th Jul 2026204 AMAQI

20°C10/31°C

26th Jul 2026225 AMAQI
26th Jul 2026386 AMAQI
26th Jul 2026337 AMAQI
26th Jul 2026388 AMAQI
26th Jul 2026259 AMAQI
26th Jul 20264210 AMAQI
26th Jul 20261411 AMAQI
26th Jul 20261712 PMAQI
26th Jul 2026171 PMAQI
26th Jul 2026192 PMAQI
26th Jul 2026123 PMAQI
26th Jul 2026124 PMAQI
26th Jul 2026215 PMAQI
26th Jul 2026166 PMAQI
26th Jul 2026177 PMAQI
26th Jul 2026178 PMAQI
26th Jul 2026339 PMAQI
26th Jul 2026910 PMAQI
26th Jul 2026811 PMAQI
27th Jul 20261912 AMAQI
27th Jul 2026181 AMAQI
27th Jul 2026212 AMAQI
27th Jul 2026253 AMAQI
27th Jul 2026204 AMAQI

19°C10/32°C

27th Jul 2026145 AMAQI
27th Jul 2026216 AMAQI
27th Jul 2026227 AMAQI
27th Jul 2026198 AMAQI
27th Jul 2026179 AMAQI
27th Jul 20261710 AMAQI
27th Jul 20261811 AMAQI
27th Jul 20262012 PMAQI
27th Jul 2026201 PMAQI
27th Jul 2026202 PMAQI
27th Jul 2026163 PMAQI
27th Jul 2026144 PMAQI
27th Jul 2026125 PMAQI
27th Jul 2026146 PMAQI
27th Jul 202687 PMAQI
27th Jul 2026238 PMAQI
27th Jul 2026219 PMAQI
27th Jul 20261710 PMAQI
27th Jul 20262111 PMAQI
28th Jul 20262712 AMAQI
28th Jul 2026301 AMAQI
28th Jul 2026172 AMAQI
28th Jul 2026173 AMAQI
28th Jul 2026234 AMAQI

19°C11/29°C

28th Jul 2026195 AMAQI
28th Jul 2026276 AMAQI
28th Jul 2026237 AMAQI
28th Jul 2026148 AMAQI
28th Jul 2026229 AMAQI
28th Jul 20262010 AMAQI
28th Jul 20262111 AMAQI
28th Jul 20262312 PMAQI
28th Jul 2026231 PMAQI
28th Jul 2026252 PMAQI
28th Jul 2026233 PMAQI
28th Jul 2026194 PMAQI
28th Jul 2026215 PMAQI
28th Jul 2026196 PMAQI
28th Jul 2026167 PMAQI
28th Jul 2026288 PMAQI
28th Jul 2026259 PMAQI
28th Jul 20262810 PMAQI
28th Jul 20261711 PMAQI
29th Jul 20262812 AMAQI
29th Jul 2026211 AMAQI
29th Jul 2026212 AMAQI
29th Jul 2026213 AMAQI
29th Jul 2026384 AMAQI

17°C9/29°C

29th Jul 2026425 AMAQI
29th Jul 2026446 AMAQI
29th Jul 2026387 AMAQI
29th Jul 2026288 AMAQI
29th Jul 2026309 AMAQI
29th Jul 20262710 AMAQI
29th Jul 20261411 AMAQI
29th Jul 20262112 PMAQI
29th Jul 2026211 PMAQI
29th Jul 2026212 PMAQI
29th Jul 2026213 PMAQI
29th Jul 2026194 PMAQI
29th Jul 2026125 PMAQI
29th Jul 2026216 PMAQI
29th Jul 2026127 PMAQI
29th Jul 2026278 PMAQI
29th Jul 2026129 PMAQI
29th Jul 20261910 PMAQI
29th Jul 20262711 PMAQI
30th Jul 20262812 AMAQI
30th Jul 2026381 AMAQI
30th Jul 2026442 AMAQI
30th Jul 2026283 AMAQI
30th Jul 2026204 AMAQI

17°C9/27°C

30th Jul 2026195 AMAQI
30th Jul 2026216 AMAQI
30th Jul 2026177 AMAQI
30th Jul 2026178 AMAQI
30th Jul 2026179 AMAQI
30th Jul 20263010 AMAQI
30th Jul 20262811 AMAQI
30th Jul 20263812 PMAQI
30th Jul 2026231 PMAQI
30th Jul 2026192 PMAQI
30th Jul 2026173 PMAQI
30th Jul 2026194 PMAQI
30th Jul 2026175 PMAQI
30th Jul 2026176 PMAQI
30th Jul 2026197 PMAQI
30th Jul 2026238 PMAQI
30th Jul 2026239 PMAQI
30th Jul 20261910 PMAQI
30th Jul 20261711 PMAQI
31st Jul 20261712 AMAQI
31st Jul 2026171 AMAQI
31st Jul 2026192 AMAQI
31st Jul 2026173 AMAQI
31st Jul 2026174 AMAQI

18°C9/28°C

31st Jul 2026175 AMAQI
31st Jul 2026176 AMAQI
31st Jul 2026197 AMAQI
31st Jul 2026178 AMAQI
31st Jul 2026199 AMAQI
31st Jul 20261710 AMAQI
31st Jul 20261711 AMAQI
31st Jul 20261712 PMAQI
31st Jul 2026171 PMAQI
31st Jul 2026172 PMAQI
31st Jul 2026173 PMAQI
31st Jul 2026174 PMAQI
31st Jul 2026175 PMAQI
31st Jul 2026176 PMAQI
31st Jul 2026177 PMAQI
31st Jul 2026198 PMAQI
31st Jul 2026219 PMAQI
31st Jul 20261910 PMAQI
31st Jul 20261711 PMAQI
1st Aug 20261712 AMAQI
1st Aug 2026191 AMAQI
1st Aug 2026212 AMAQI
1st Aug 2026193 AMAQI
1st Aug 2026214 AMAQI

19°C8/30°C

1st Aug 2026215 AMAQI
1st Aug 2026216 AMAQI
1st Aug 2026197 AMAQI
1st Aug 2026198 AMAQI
1st Aug 2026219 AMAQI
1st Aug 20261910 AMAQI
1st Aug 20261711 AMAQI
1st Aug 20261712 PMAQI
1st Aug 2026191 PMAQI
1st Aug 2026192 PMAQI
1st Aug 2026173 PMAQI
1st Aug 2026174 PMAQI
1st Aug 2026175 PMAQI
1st Aug 2026176 PMAQI
1st Aug 2026197 PMAQI
1st Aug 2026198 PMAQI
1st Aug 2026219 PMAQI
1st Aug 20261910 PMAQI
1st Aug 20261711 PMAQI
2nd Aug 20261712 AMAQI
2nd Aug 2026171 AMAQI
2nd Aug 2026172 AMAQI
2nd Aug 2026213 AMAQI
2nd Aug 2026194 AMAQI

19°C7/31°C

2nd Aug 2026215 AMAQI
5 AM
2nd Aug 2026216 AMAQI
2nd Aug 2026217 AMAQI
2nd Aug 2026218 AMAQI
2nd Aug 2026199 AMAQI
2nd Aug 20262110 AMAQI
2nd Aug 20262111 AMAQI
2nd Aug 20262112 PMAQI
12 PM
2nd Aug 2026211 PMAQI
2nd Aug 2026172 PMAQI
2nd Aug 2026213 PMAQI
2nd Aug 2026214 PMAQI
2nd Aug 2026335 PMAQI
2nd Aug 2026516 PMAQI
8 PM
12 AM
4 AM

20°C8/33°C

Day time
Avg. Highest Time
12 PM

25AQI

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

19AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 PM to 12 PM (Avg. 25), while the lowest AQI was between 5 AM to 5 AM (Avg. 19).
Night time
Avg. Highest Time
12 AM

21AQI

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

19AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 12 AM (Avg. 21), while the lowest AQI was between 4 AM to 4 AM (Avg. 19).

2026 Days Vs Air Quality

Vail, Colorado, United States

2026

100%

210

Total number of days with different AQI categories in last 214 days in 2026 (151 days remaining)

Good
210 Days
Moderate
0 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 214 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 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
24AQI (US)
2nd January 2026
19AQI (US)
3rd January 2026
21AQI (US)
4th January 2026
21AQI (US)
5th January 2026
24AQI (US)
6th January 2026
19AQI (US)
7th January 2026
25AQI (US)
8th January 2026
14AQI (US)
9th January 2026
21AQI (US)
10th January 2026
15AQI (US)
11th January 2026
23AQI (US)
12th January 2026
24AQI (US)
13th January 2026
20AQI (US)
14th January 2026
16AQI (US)
15th January 2026
24AQI (US)
16th January 2026
19AQI (US)
17th January 2026
13AQI (US)
18th January 2026
20AQI (US)
19th January 2026
15AQI (US)
20th January 2026
22AQI (US)
21st January 2026
20AQI (US)
22nd January 2026
25AQI (US)
23rd January 2026
21AQI (US)
24th January 2026
28AQI (US)
25th January 2026
16AQI (US)
26th January 2026
25AQI (US)
27th January 2026
22AQI (US)
28th January 2026
24AQI (US)
29th January 2026
25AQI (US)
30th January 2026
22AQI (US)
31st January 2026
18AQI (US)
1st February 2026
20AQI (US)
2nd February 2026
26AQI (US)
3rd February 2026
20AQI (US)
4th February 2026
26AQI (US)
5th February 2026
24AQI (US)
6th February 2026
23AQI (US)
7th February 2026
21AQI (US)
8th February 2026
19AQI (US)
9th February 2026
22AQI (US)
10th February 2026
19AQI (US)
11th February 2026
16AQI (US)
12th February 2026
22AQI (US)
13th February 2026
19AQI (US)
14th February 2026
26AQI (US)
15th February 2026
23AQI (US)
16th February 2026
23AQI (US)
17th February 2026
20AQI (US)
18th February 2026
25AQI (US)
19th February 2026
29AQI (US)
20th February 2026
14AQI (US)
21st February 2026
24AQI (US)
22nd February 2026
21AQI (US)
23rd February 2026
22AQI (US)
24th February 2026
28AQI (US)
25th February 2026
25AQI (US)
26th February 2026
21AQI (US)
27th February 2026
24AQI (US)
28th February 2026
21AQI (US)
1st March 2026
20AQI (US)
2nd March 2026
23AQI (US)
3rd March 2026
15AQI (US)
4th March 2026
26AQI (US)
5th March 2026
17AQI (US)
6th March 2026
30AQI (US)
7th March 2026
23AQI (US)
8th March 2026
18AQI (US)
9th March 2026
23AQI (US)
10th March 2026
25AQI (US)
11th March 2026
17AQI (US)
12th March 2026
22AQI (US)
13th March 2026
20AQI (US)
14th March 2026
25AQI (US)
15th March 2026
24AQI (US)
16th March 2026
22AQI (US)
17th March 2026
16AQI (US)
18th March 2026
20AQI (US)
19th March 2026
20AQI (US)
20th March 2026
19AQI (US)
21st March 2026
17AQI (US)
22nd March 2026
19AQI (US)
23rd March 2026
18AQI (US)
24th March 2026
20AQI (US)
25th March 2026
17AQI (US)
26th March 2026
26AQI (US)
27th March 2026
19AQI (US)
28th March 2026
19AQI (US)
29th March 2026
18AQI (US)
30th March 2026
18AQI (US)
31st March 2026
20AQI (US)
1st April 2026
24AQI (US)
2nd April 2026
20AQI (US)
3rd April 2026
25AQI (US)
4th April 2026
22AQI (US)
5th April 2026
17AQI (US)
6th April 2026
18AQI (US)
7th April 2026
19AQI (US)
8th April 2026
23AQI (US)
9th April 2026
17AQI (US)
10th April 2026
19AQI (US)
11th April 2026
18AQI (US)
12th April 2026
21AQI (US)
13th April 2026
16AQI (US)
14th April 2026
21AQI (US)
15th April 2026
23AQI (US)
16th April 2026
19AQI (US)
17th April 2026
18th April 2026
27AQI (US)
19th April 2026
15AQI (US)
20th April 2026
18AQI (US)
21st April 2026
16AQI (US)
22nd April 2026
23rd April 2026
27AQI (US)
24th April 2026
19AQI (US)
25th April 2026
14AQI (US)
26th April 2026
16AQI (US)
27th April 2026
15AQI (US)
28th April 2026
24AQI (US)
29th April 2026
21AQI (US)
30th April 2026
18AQI (US)
1st May 2026
15AQI (US)
2nd May 2026
19AQI (US)
3rd May 2026
18AQI (US)
4th May 2026
19AQI (US)
5th May 2026
20AQI (US)
6th May 2026
25AQI (US)
7th May 2026
17AQI (US)
8th May 2026
16AQI (US)
9th May 2026
10th May 2026
16AQI (US)
11th May 2026
19AQI (US)
12th May 2026
17AQI (US)
13th May 2026
19AQI (US)
14th May 2026
30AQI (US)
15th May 2026
17AQI (US)
16th May 2026
17AQI (US)
17th May 2026
21AQI (US)
18th May 2026
18AQI (US)
19th May 2026
25AQI (US)
20th May 2026
19AQI (US)
21st May 2026
20AQI (US)
22nd May 2026
18AQI (US)
23rd May 2026
27AQI (US)
24th May 2026
22AQI (US)
25th May 2026
14AQI (US)
26th May 2026
13AQI (US)
27th May 2026
17AQI (US)
28th May 2026
18AQI (US)
29th May 2026
14AQI (US)
30th May 2026
13AQI (US)
31st May 2026
22AQI (US)
1st June 2026
14AQI (US)
2nd June 2026
16AQI (US)
3rd June 2026
16AQI (US)
4th June 2026
16AQI (US)
5th June 2026
18AQI (US)
6th June 2026
17AQI (US)
7th June 2026
18AQI (US)
8th June 2026
18AQI (US)
9th June 2026
19AQI (US)
10th June 2026
18AQI (US)
11th June 2026
19AQI (US)
12th June 2026
18AQI (US)
13th June 2026
15AQI (US)
14th June 2026
16AQI (US)
15th June 2026
15AQI (US)
16th June 2026
16AQI (US)
17th June 2026
20AQI (US)
18th June 2026
18AQI (US)
19th June 2026
18AQI (US)
20th June 2026
26AQI (US)
21st June 2026
37AQI (US)
22nd June 2026
18AQI (US)
23rd June 2026
29AQI (US)
24th June 2026
41AQI (US)
25th June 2026
30AQI (US)
26th June 2026
13AQI (US)
27th June 2026
25AQI (US)
28th June 2026
43AQI (US)
29th June 2026
22AQI (US)
30th June 2026
27AQI (US)
1st July 2026
35AQI (US)
2nd July 2026
41AQI (US)
3rd July 2026
33AQI (US)
4th July 2026
20AQI (US)
5th July 2026
23AQI (US)
6th July 2026
33AQI (US)
7th July 2026
37AQI (US)
8th July 2026
15AQI (US)
9th July 2026
11AQI (US)
10th July 2026
14AQI (US)
11th July 2026
15AQI (US)
12th July 2026
15AQI (US)
13th July 2026
21AQI (US)
14th July 2026
30AQI (US)
15th July 2026
21AQI (US)
16th July 2026
22AQI (US)
17th July 2026
21AQI (US)
18th July 2026
21AQI (US)
19th July 2026
18AQI (US)
20th July 2026
22AQI (US)
21st July 2026
23AQI (US)
22nd July 2026
18AQI (US)
23rd July 2026
23AQI (US)
24th July 2026
21AQI (US)
25th July 2026
19AQI (US)
26th July 2026
22AQI (US)
27th July 2026
18AQI (US)
28th July 2026
22AQI (US)
29th July 2026
24AQI (US)
30th July 2026
23AQI (US)
31st July 2026
18AQI (US)
1st August 2026
19AQI (US)
2nd August 2026
3rd August 2026
4th August 2026
5th August 2026
6th August 2026
7th August 2026
8th August 2026
9th August 2026
10th August 2026
11th August 2026
12th August 2026
13th August 2026
14th August 2026
15th August 2026
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026

21AQI (US)

22AQI (US)

21AQI (US)

20AQI (US)

19AQI (US)

21AQI (US)

23AQI (US)

19AQI (US)

No. of days

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

202621AQI (US)

31
28
31
28
30
30
31
1
210

Highest AQI (US) recorded in

July

23AQI (US)

Lowest AQI (US) recorded in

August

19AQI (US)

202524AQI (US)

31
28
31
30
31
30
31
26
5
27
3
31
30
31
357
8

Highest AQI (US) recorded in

August

35AQI (US)

Lowest AQI (US) recorded in

May

19AQI (US)

202424AQI (US)

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

Highest AQI (US) recorded in

September

42AQI (US)

Lowest AQI (US) recorded in

April

9AQI (US)

202327AQI (US)

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

Highest AQI (US) recorded in

August

57AQI (US)

Lowest AQI (US) recorded in

November

7AQI (US)

202217AQI (US)

3
4
1
1
7
2

Highest AQI (US) recorded in

October

52AQI (US)

Lowest AQI (US) recorded in

May

5AQI (US)

20218AQI (US)

2
13
6
21

Highest AQI (US) recorded in

April

17AQI (US)

Lowest AQI (US) recorded in

May

5AQI (US)

202036AQI (US)

1
10
5
1
11
6

Highest AQI (US) recorded in

August

59AQI (US)

Lowest AQI (US) recorded in

October

9AQI (US)

Most & Least Polluted Years Over the Last 7 Years

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

Vail's annual 2026 AQI (US) (21) shows an average percentage change of 16.1% (worsened AQI (US)) compared to previous years: 2020 (36), 2021 (8), 2022 (17), 2023 (27), 2024 (24), 2025 (24).