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!
March Air Quality Analysis
Vail, Colorado, United States
AQI Trends: Highest and Lowest
Same Day Analysis (8th March):
On this day, AQI across the 3 years varied significantly: 2026 ranks 1st highest AQI at 18 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 7th Mar - 8th Mar 2026
Vail, Colorado, United States
6 AM7th Mar 2026
5 PM
5 AM8th Mar 2026
40AQI
9AQI
24AQI
10AQI
In the last 24 hours,
Vail's AQI reached its highest point of 40 at 7 AM during the Day, while the lowest point, 9, was recorded at 8 AM during the Day between 7th Mar and 8th Mar 2026.
Day & Night AQI Trend : Feb - Mar 2026
Vail, Colorado, United States
0°C-5/9°C
0°C-6/9°C
1°C-5/9°C
0°C-4/5°C
1°C-3/7°C
1°C-4/7°C
-1°C-8/6°C
-1°C-6/6°C
1°C-4/7°C
3°C-1/9°C
0°C-3/1°C
-3°C-7/1°C
-8°C-11/-6°C
-10°C-16/-3°C
-11°C-19/0°C
-7°C-17/5°C
-4°C-12/7°C
-1°C-8/6°C
2°C-1/7°C
-1°C-6/5°C
0°C-4/8°C
2°C-5/10°C
3°C-3/9°C
5°C-1/12°C
1°C-2/6°C
2°C-6/9°C
1°C-5/8°C
-4°C-7/0°C
-4°C-11/4°C
0°C-7/9°C
25AQI
18AQI
26AQI
18AQI
2026 Days Vs Air Quality
Vail, Colorado, United States
100%
67
Total number of days with different AQI categories in last 68 days in 2026 (297 days remaining)
Under WHO’s Safe Air Quality Limits: 100%
Health Risk Level:
Very Low
In 2026, 100% of 68 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
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
24AQI (US)
19AQI (US)
21AQI (US)
21AQI (US)
24AQI (US)
19AQI (US)
25AQI (US)
14AQI (US)
21AQI (US)
15AQI (US)
23AQI (US)
24AQI (US)
20AQI (US)
16AQI (US)
24AQI (US)
19AQI (US)
13AQI (US)
20AQI (US)
15AQI (US)
22AQI (US)
20AQI (US)
25AQI (US)
21AQI (US)
28AQI (US)
16AQI (US)
25AQI (US)
22AQI (US)
24AQI (US)
25AQI (US)
22AQI (US)
18AQI (US)
20AQI (US)
26AQI (US)
20AQI (US)
26AQI (US)
24AQI (US)
23AQI (US)
21AQI (US)
19AQI (US)
22AQI (US)
19AQI (US)
16AQI (US)
22AQI (US)
19AQI (US)
26AQI (US)
23AQI (US)
23AQI (US)
20AQI (US)
25AQI (US)
29AQI (US)
14AQI (US)
24AQI (US)
21AQI (US)
22AQI (US)
28AQI (US)
25AQI (US)
21AQI (US)
24AQI (US)
21AQI (US)
20AQI (US)
23AQI (US)
15AQI (US)
26AQI (US)
17AQI (US)
30AQI (US)
23AQI (US)
18AQI (US)
21AQI (US)
22AQI (US)
22AQI (US)
No. of days
202621AQI (US)
Highest AQI (US) recorded in
February22AQI (US)
Lowest AQI (US) recorded in
January21AQI (US)
202524AQI (US)
Highest AQI (US) recorded in
August35AQI (US)
Lowest AQI (US) recorded in
May19AQI (US)
202424AQI (US)
Highest AQI (US) recorded in
September42AQI (US)
Lowest AQI (US) recorded in
April9AQI (US)
202327AQI (US)
Highest AQI (US) recorded in
August57AQI (US)
Lowest AQI (US) recorded in
November7AQI (US)
202217AQI (US)
Highest AQI (US) recorded in
October52AQI (US)
Lowest AQI (US) recorded in
May5AQI (US)
20218AQI (US)
Highest AQI (US) recorded in
April17AQI (US)
Lowest AQI (US) recorded in
May5AQI (US)
202036AQI (US)
Highest AQI (US) recorded in
August59AQI (US)
Lowest AQI (US) recorded in
October9AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Vail's annual 2026 AQI (US) (21) shows an average percentage change of 18.5% (worsened AQI (US)) compared to previous years: 2020 (36), 2021 (8), 2022 (17), 2023 (27), 2024 (24), 2025 (24).