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  3. Colorado

Colorado

United States

2026-06-01 15:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
109
PM2.5
μg/m³
4.5
PM10
μg/m³
24.9
NO2
μg/m³
15.7
CO
μg/m³
208.3
SO2
μg/m³
3.1
Weather
  • ℃
  • ℉
13℃
23%
14 kph
6 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • PM10
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 46
Alamosa County
AQI 24
Arapahoe County
AQI 55
Archuleta County
AQI 50
Baca County
AQI 33
Bent County
AQI 49
Boulder County
AQI 49
Broomfield County
AQI 37
Chaffee County
AQI 21
Cheyenne County
AQI 48
Clear Creek County
AQI 42
Conejos County
AQI 26
Costilla County
AQI 20
Crowley County
AQI 52
Custer County
AQI 31
Delta County
AQI 27
Denver County
AQI 38
Dolores County
AQI 19
Douglas County
AQI 49
Eagle County
AQI 25
El Paso County
AQI 55
Elbert County
AQI 43
Fremont County
AQI 24
Garfield County
AQI 37
Gilpin County
AQI 57
Grand County
AQI 31
Gunnison County
AQI 45
Hinsdale County
AQI 17
Huerfano County
AQI 37
Jackson County
AQI 32
Jefferson County
AQI 66
La Plata County
AQI 43
Lake County
AQI 21
Larimer County
AQI 50
Las Animas County
AQI 44
Lincoln County
AQI 49
Logan County
AQI 29
Mesa County
AQI 42
Mineral County
AQI 14
Moffat County
AQI 30
Montezuma County
AQI 48
Montrose County
AQI 30
Morgan County
AQI 35
Otero County
AQI 52
Ouray County
AQI 25
Park County
AQI 36
Phillips County
AQI 30
Pitkin County
AQI 40
Prowers County
AQI 46
Pueblo County
AQI 54
Rio Blanco County
AQI 35
Rio Grande County
AQI 26
Routt County
AQI 33
Saguache County
AQI 22
San Juan County
AQI 25
San Miguel County
AQI 21
Sedgwick County
AQI 24
Summit County
AQI 27
Teller County
AQI 23
Washington County
AQI 40
Weld County
AQI 52
Yuma County
AQI 32
Data Sources
http://www.airnow.gov/

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Cities Nearby

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AQI 28
Georgetown
AQI 42
Breckenridge
AQI 26
Silverthorne
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Frisco
AQI 26
Wildernest
AQI 26
Bailey
AQI 41
Idaho Springs
AQI 46
Copper Mountain
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Black Hawk
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Winter Park
AQI 32