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  3. Colorado

Colorado

United States

2026-09-16 02:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
73.2
PM10
μg/m³
22.9
PM2.5
μg/m³
3.7
NO2
μg/m³
11.4
CO
μg/m³
333.3
SO2
μg/m³
1.2
Weather
  • ℃
  • ℉
8℃
73%
6 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 33
Alamosa County
AQI 13
Arapahoe County
AQI 33
Archuleta County
AQI 36
Baca County
AQI 17
Bent County
AQI 17
Boulder County
AQI 35
Broomfield County
AQI 33
Chaffee County
AQI 9
Cheyenne County
AQI 13
Clear Creek County
AQI 37
Conejos County
AQI 13
Costilla County
AQI 14
Crowley County
AQI 19
Custer County
AQI 20
Delta County
AQI 17
Denver County
AQI 33
Dolores County
AQI 16
Douglas County
AQI 38
Eagle County
AQI 12
El Paso County
AQI 36
Elbert County
AQI 24
Fremont County
AQI 27
Garfield County
AQI 30
Gilpin County
AQI 45
Grand County
AQI 13
Gunnison County
AQI 22
Hinsdale County
AQI 15
Huerfano County
AQI 20
Jackson County
AQI 10
Jefferson County
AQI 36
La Plata County
AQI 30
Lake County
AQI 8
Larimer County
AQI 38
Las Animas County
AQI 13
Lincoln County
AQI 12
Logan County
AQI 10
Mesa County
AQI 36
Mineral County
AQI 23
Moffat County
AQI 10
Montezuma County
AQI 29
Montrose County
AQI 17
Morgan County
AQI 11
Otero County
AQI 19
Ouray County
AQI 20
Park County
AQI 22
Phillips County
AQI 10
Pitkin County
AQI 25
Prowers County
AQI 43
Pueblo County
AQI 31
Rio Blanco County
AQI 12
Rio Grande County
AQI 13
Routt County
AQI 18
Saguache County
AQI 18
San Juan County
AQI 20
San Miguel County
AQI 20
Sedgwick County
AQI 9
Summit County
AQI 11
Teller County
AQI 23
Washington County
AQI 12
Weld County
AQI 33
Yuma County
AQI 11
Data Sources
http://www.airnow.gov/

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AQI 22
Georgetown
AQI 36
Breckenridge
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Silverthorne
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Frisco
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Wildernest
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Bailey
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Idaho Springs
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Winter Park
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