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  3. Colorado

Colorado

United States

2026-06-20 18:00
AQI (US)
Moderate
Pollutants|Pollens
O3
μg/m³
128.6
PM10
μg/m³
45.8
PM2.5
μg/m³
7.6
NO2
μg/m³
8.9
CO
μg/m³
270.8
SO2
μg/m³
2.9
Weather
  • ℃
  • ℉
21℃
17%
27 kph
11 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 91
Alamosa County
AQI 55
Arapahoe County
AQI 101
Archuleta County
AQI 97
Baca County
AQI 26
Bent County
AQI 31
Boulder County
AQI 53
Broomfield County
AQI 55
Chaffee County
AQI 16
Cheyenne County
AQI 32
Clear Creek County
AQI 52
Conejos County
AQI 55
Costilla County
AQI 20
Crowley County
AQI 32
Custer County
AQI 21
Delta County
AQI 52
Denver County
AQI 90
Dolores County
AQI 15
Douglas County
AQI 106
Eagle County
AQI 15
El Paso County
AQI 68
Elbert County
AQI 40
Fremont County
AQI 32
Garfield County
AQI 57
Gilpin County
AQI 51
Grand County
AQI 14
Gunnison County
AQI 49
Hinsdale County
AQI 20
Huerfano County
AQI 19
Jackson County
AQI 15
Jefferson County
AQI 86
La Plata County
AQI 44
Lake County
AQI 15
Larimer County
AQI 58
Las Animas County
AQI 21
Lincoln County
AQI 31
Logan County
AQI 30
Mesa County
AQI 76
Mineral County
AQI 20
Moffat County
AQI 22
Montezuma County
AQI 57
Montrose County
AQI 52
Morgan County
AQI 28
Otero County
AQI 31
Ouray County
AQI 25
Park County
AQI 17
Phillips County
AQI 30
Pitkin County
AQI 47
Prowers County
AQI 33
Pueblo County
AQI 60
Rio Blanco County
AQI 20
Rio Grande County
AQI 55
Routt County
AQI 27
Saguache County
AQI 20
San Juan County
AQI 25
San Miguel County
AQI 25
Sedgwick County
AQI 34
Summit County
AQI 17
Teller County
AQI 33
Washington County
AQI 32
Weld County
AQI 68
Yuma County
AQI 34
Data Sources
http://www.airnow.gov/

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Cities Nearby

Keystone
AQI 33
Georgetown
AQI 59
Breckenridge
AQI 18
Silverthorne
AQI 16
Frisco
AQI 15
Wildernest
AQI 15
Bailey
AQI 51
Idaho Springs
AQI 49
Copper Mountain
AQI 15
Black Hawk
AQI 48
Winter Park
AQI 32