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  3. Colorado

Colorado

United States

2026-09-17 15:00
AQI (US)
Good
Pollutants|Pollens
PM10
μg/m³
37.1
O3
μg/m³
49.5
PM2.5
μg/m³
3.6
NO2
μg/m³
14.2
CO
μg/m³
270.8
SO2
μg/m³
2.1
Weather
  • ℃
  • ℉
7℃
95%
8 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM10
  • O3
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 74
Alamosa County
AQI 8
Arapahoe County
AQI 74
Archuleta County
AQI 34
Baca County
AQI 53
Bent County
AQI 47
Boulder County
AQI 25
Broomfield County
AQI 74
Chaffee County
AQI 5
Cheyenne County
AQI 38
Clear Creek County
AQI 18
Conejos County
AQI 8
Costilla County
AQI 12
Crowley County
AQI 27
Custer County
AQI 14
Delta County
AQI 19
Denver County
AQI 74
Dolores County
AQI 10
Douglas County
AQI 74
Eagle County
AQI 12
El Paso County
AQI 27
Elbert County
AQI 23
Fremont County
AQI 17
Garfield County
AQI 13
Gilpin County
AQI 22
Grand County
AQI 18
Gunnison County
AQI 13
Hinsdale County
AQI 7
Huerfano County
AQI 11
Jackson County
AQI 22
Jefferson County
AQI 67
La Plata County
AQI 37
Lake County
AQI 6
Larimer County
AQI 34
Las Animas County
AQI 36
Lincoln County
AQI 22
Logan County
AQI 22
Mesa County
AQI 22
Mineral County
AQI 7
Moffat County
AQI 23
Montezuma County
AQI 28
Montrose County
AQI 19
Morgan County
AQI 46
Otero County
AQI 35
Ouray County
AQI 14
Park County
AQI 15
Phillips County
AQI 24
Pitkin County
AQI 7
Prowers County
AQI 53
Pueblo County
AQI 23
Rio Blanco County
AQI 30
Rio Grande County
AQI 8
Routt County
AQI 17
Saguache County
AQI 11
San Juan County
AQI 14
San Miguel County
AQI 14
Sedgwick County
AQI 22
Summit County
AQI 13
Teller County
AQI 27
Washington County
AQI 23
Weld County
AQI 54
Yuma County
AQI 27
Data Sources
http://www.airnow.gov/

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Cities Nearby

Keystone
AQI 15
Georgetown
AQI 19
Breckenridge
AQI 13
Silverthorne
AQI 13
Frisco
AQI 12
Wildernest
AQI 13
Bailey
AQI 27
Idaho Springs
AQI 28
Copper Mountain
AQI 11
Black Hawk
AQI 16
Winter Park
AQI 18