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Colorado

United States

2026-06-21 13:00
AQI (China)
Excellent
Pollutants|Pollens
PM10
μg/m³
24.6
O3
μg/m³
72.6
PM2.5
μg/m³
7.2
NO2
μg/m³
9.3
CO
μg/m³
229.2
SO2
μg/m³
2.2
Weather
  • ℃
  • ℉
12℃
29%
9 kph
2 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • PM10
  • O3
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 32
Alamosa County
AQI 39
Arapahoe County
AQI 24
Archuleta County
AQI 27
Baca County
AQI 13
Bent County
AQI 21
Boulder County
AQI 22
Broomfield County
AQI 33
Chaffee County
AQI 6
Cheyenne County
AQI 26
Clear Creek County
AQI 20
Conejos County
AQI 27
Costilla County
AQI 7
Crowley County
AQI 12
Custer County
AQI 8
Delta County
AQI 23
Denver County
AQI 27
Dolores County
AQI 4
Douglas County
AQI 24
Eagle County
AQI 14
El Paso County
AQI 22
Elbert County
AQI 13
Fremont County
AQI 34
Garfield County
AQI 10
Gilpin County
AQI 28
Grand County
AQI 11
Gunnison County
AQI 27
Hinsdale County
AQI 9
Huerfano County
AQI 3
Jackson County
AQI 10
Jefferson County
AQI 24
La Plata County
AQI 25
Lake County
AQI 11
Larimer County
AQI 23
Las Animas County
AQI 4
Lincoln County
AQI 13
Logan County
AQI 8
Mesa County
AQI 30
Mineral County
AQI 5
Moffat County
AQI 13
Montezuma County
AQI 30
Montrose County
AQI 21
Morgan County
AQI 7
Otero County
AQI 17
Ouray County
AQI 13
Park County
AQI 8
Phillips County
AQI 13
Pitkin County
AQI 27
Prowers County
AQI 7
Pueblo County
AQI 29
Rio Blanco County
AQI 12
Rio Grande County
AQI 27
Routt County
AQI 67
Saguache County
AQI 7
San Juan County
AQI 13
San Miguel County
AQI 16
Sedgwick County
AQI 11
Summit County
AQI 12
Teller County
AQI 15
Washington County
AQI 12
Weld County
AQI 25
Yuma County
AQI 16
Data Sources
http://www.airnow.gov/

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AQI 14
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AQI 21
Breckenridge
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Wildernest
AQI 11
Bailey
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