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  3. Colorado

Colorado

United States

2026-09-22 02:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
93.6
PM2.5
μg/m³
3.7
PM10
μg/m³
17.9
NO2
μg/m³
14.9
CO
μg/m³
291.7
SO2
μg/m³
1.3
Weather
  • ℃
  • ℉
5℃
68%
5 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • PM10
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 43
Alamosa County
AQI 26
Arapahoe County
AQI 43
Archuleta County
AQI 28
Baca County
AQI 13
Bent County
AQI 10
Boulder County
AQI 57
Broomfield County
AQI 19
Chaffee County
AQI 12
Cheyenne County
AQI 11
Clear Creek County
AQI 42
Conejos County
AQI 26
Costilla County
AQI 8
Crowley County
AQI 8
Custer County
AQI 9
Delta County
AQI 26
Denver County
AQI 40
Dolores County
AQI 10
Douglas County
AQI 42
Eagle County
AQI 17
El Paso County
AQI 52
Elbert County
AQI 27
Fremont County
AQI 16
Garfield County
AQI 22
Gilpin County
AQI 51
Grand County
AQI 18
Gunnison County
AQI 51
Hinsdale County
AQI 18
Huerfano County
AQI 7
Jackson County
AQI 17
Jefferson County
AQI 46
La Plata County
AQI 32
Lake County
AQI 14
Larimer County
AQI 49
Las Animas County
AQI 6
Lincoln County
AQI 8
Logan County
AQI 5
Mesa County
AQI 38
Mineral County
AQI 11
Moffat County
AQI 17
Montezuma County
AQI 40
Montrose County
AQI 26
Morgan County
AQI 8
Otero County
AQI 11
Ouray County
AQI 26
Park County
AQI 10
Phillips County
AQI 5
Pitkin County
AQI 29
Prowers County
AQI 8
Pueblo County
AQI 42
Rio Blanco County
AQI 20
Rio Grande County
AQI 26
Routt County
AQI 28
Saguache County
AQI 12
San Juan County
AQI 26
San Miguel County
AQI 26
Sedgwick County
AQI 4
Summit County
AQI 18
Teller County
AQI 14
Washington County
AQI 7
Weld County
AQI 42
Yuma County
AQI 6
Data Sources
http://www.airnow.gov/

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Cities Nearby

Keystone
AQI 25
Georgetown
AQI 41
Breckenridge
AQI 18
Silverthorne
AQI 18
Frisco
AQI 17
Wildernest
AQI 17
Bailey
AQI 38
Idaho Springs
AQI 45
Copper Mountain
AQI 17
Black Hawk
AQI 51
Winter Park
AQI 25