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  3. Colorado

Colorado

United States

2026-06-22 13:00
AQI (US)
Moderate
Pollutants|Pollens
PM2.5
μg/m³
9.7
O3
μg/m³
69.8
PM10
μg/m³
31.8
NO2
μg/m³
20.4
CO
μg/m³
354.2
SO2
μg/m³
1.9
Weather
  • ℃
  • ℉
11℃
45%
7 kph
1 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • PM10
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 54
Alamosa County
AQI 59
Arapahoe County
AQI 44
Archuleta County
AQI 38
Baca County
AQI 13
Bent County
AQI 16
Boulder County
AQI 39
Broomfield County
AQI 56
Chaffee County
AQI 32
Cheyenne County
AQI 7
Clear Creek County
AQI 32
Conejos County
AQI 59
Costilla County
AQI 53
Crowley County
AQI 30
Custer County
AQI 51
Delta County
AQI 58
Denver County
AQI 56
Dolores County
AQI 27
Douglas County
AQI 42
Eagle County
AQI 19
El Paso County
AQI 44
Elbert County
AQI 35
Fremont County
AQI 51
Garfield County
AQI 50
Gilpin County
AQI 33
Grand County
AQI 21
Gunnison County
AQI 38
Hinsdale County
AQI 49
Huerfano County
AQI 52
Jackson County
AQI 16
Jefferson County
AQI 38
La Plata County
AQI 62
Lake County
AQI 26
Larimer County
AQI 37
Las Animas County
AQI 44
Lincoln County
AQI 15
Logan County
AQI 6
Mesa County
AQI 51
Mineral County
AQI 33
Moffat County
AQI 18
Montezuma County
AQI 43
Montrose County
AQI 58
Morgan County
AQI 10
Otero County
AQI 31
Ouray County
AQI 56
Park County
AQI 37
Phillips County
AQI 8
Pitkin County
AQI 49
Prowers County
AQI 7
Pueblo County
AQI 43
Rio Blanco County
AQI 23
Rio Grande County
AQI 59
Routt County
AQI 20
Saguache County
AQI 42
San Juan County
AQI 56
San Miguel County
AQI 56
Sedgwick County
AQI 6
Summit County
AQI 28
Teller County
AQI 44
Washington County
AQI 9
Weld County
AQI 51
Yuma County
AQI 9
Data Sources
http://www.airnow.gov/

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Keystone
AQI 33
Georgetown
AQI 32
Breckenridge
AQI 29
Silverthorne
AQI 27
Frisco
AQI 26
Wildernest
AQI 25
Bailey
AQI 33
Idaho Springs
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Copper Mountain
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Black Hawk
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Winter Park
AQI 26