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  3. Colorado

Colorado

United States

2026-06-18 23:00
AQI (US)
Moderate
Pollutants|Pollens
O3
μg/m³
149.6
PM10
μg/m³
31.8
PM2.5
μg/m³
4.1
NO2
μg/m³
10.6
CO
μg/m³
229.2
SO2
μg/m³
2.1
Weather
  • ℃
  • ℉
19℃
22%
16 kph
1 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 102
Alamosa County
AQI 40
Arapahoe County
AQI 103
Archuleta County
AQI 69
Baca County
AQI 43
Bent County
AQI 53
Boulder County
AQI 103
Broomfield County
AQI 35
Chaffee County
AQI 13
Cheyenne County
AQI 30
Clear Creek County
AQI 99
Conejos County
AQI 40
Costilla County
AQI 17
Crowley County
AQI 50
Custer County
AQI 23
Delta County
AQI 18
Denver County
AQI 106
Dolores County
AQI 9
Douglas County
AQI 110
Eagle County
AQI 13
El Paso County
AQI 49
Elbert County
AQI 40
Fremont County
AQI 39
Garfield County
AQI 103
Gilpin County
AQI 104
Grand County
AQI 9
Gunnison County
AQI 100
Hinsdale County
AQI 13
Huerfano County
AQI 34
Jackson County
AQI 9
Jefferson County
AQI 109
La Plata County
AQI 58
Lake County
AQI 13
Larimer County
AQI 101
Las Animas County
AQI 43
Lincoln County
AQI 30
Logan County
AQI 22
Mesa County
AQI 102
Mineral County
AQI 10
Moffat County
AQI 17
Montezuma County
AQI 54
Montrose County
AQI 18
Morgan County
AQI 19
Otero County
AQI 54
Ouray County
AQI 20
Park County
AQI 16
Phillips County
AQI 23
Pitkin County
AQI 100
Prowers County
AQI 42
Pueblo County
AQI 48
Rio Blanco County
AQI 15
Rio Grande County
AQI 40
Routt County
AQI 28
Saguache County
AQI 14
San Juan County
AQI 20
San Miguel County
AQI 20
Sedgwick County
AQI 23
Summit County
AQI 12
Teller County
AQI 24
Washington County
AQI 22
Weld County
AQI 101
Yuma County
AQI 22
Data Sources
http://www.airnow.gov/

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Cities Nearby

Keystone
AQI 39
Georgetown
AQI 98
Breckenridge
AQI 13
Silverthorne
AQI 11
Frisco
AQI 12
Wildernest
AQI 11
Bailey
AQI 102
Idaho Springs
AQI 103
Copper Mountain
AQI 12
Black Hawk
AQI 104
Winter Park
AQI 39