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  3. Colorado

Colorado

United States

2026-06-03 16:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
101.3
PM2.5
μg/m³
5.1
PM10
μg/m³
29.8
NO2
μg/m³
9.3
CO
μg/m³
229.2
SO2
μg/m³
2.2
Weather
  • ℃
  • ℉
14℃
18%
5 kph
8 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • PM10
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 50
Alamosa County
AQI 32
Arapahoe County
AQI 48
Archuleta County
AQI 46
Baca County
AQI 39
Bent County
AQI 50
Boulder County
AQI 45
Broomfield County
AQI 42
Chaffee County
AQI 7
Cheyenne County
AQI 34
Clear Creek County
AQI 40
Conejos County
AQI 32
Costilla County
AQI 13
Crowley County
AQI 35
Custer County
AQI 14
Delta County
AQI 52
Denver County
AQI 44
Dolores County
AQI 9
Douglas County
AQI 47
Eagle County
AQI 7
El Paso County
AQI 34
Elbert County
AQI 25
Fremont County
AQI 30
Garfield County
AQI 43
Gilpin County
AQI 49
Grand County
AQI 8
Gunnison County
AQI 42
Hinsdale County
AQI 20
Huerfano County
AQI 11
Jackson County
AQI 13
Jefferson County
AQI 53
La Plata County
AQI 50
Lake County
AQI 6
Larimer County
AQI 47
Las Animas County
AQI 23
Lincoln County
AQI 34
Logan County
AQI 23
Mesa County
AQI 45
Mineral County
AQI 10
Moffat County
AQI 23
Montezuma County
AQI 39
Montrose County
AQI 50
Morgan County
AQI 24
Otero County
AQI 41
Ouray County
AQI 38
Park County
AQI 10
Phillips County
AQI 22
Pitkin County
AQI 40
Prowers County
AQI 10
Pueblo County
AQI 32
Rio Blanco County
AQI 20
Rio Grande County
AQI 32
Routt County
AQI 26
Saguache County
AQI 12
San Juan County
AQI 38
San Miguel County
AQI 30
Sedgwick County
AQI 21
Summit County
AQI 8
Teller County
AQI 32
Washington County
AQI 27
Weld County
AQI 50
Yuma County
AQI 23
Data Sources
http://www.airnow.gov/

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AQI 24
Georgetown
AQI 40
Breckenridge
AQI 9
Silverthorne
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Frisco
AQI 7
Wildernest
AQI 7
Bailey
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Idaho Springs
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Copper Mountain
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Winter Park
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