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  3. Colorado

Colorado

United States

2026-09-17 16:00
AQI (US)
Good
Pollutants|Pollens
PM10
μg/m³
33.5
O3
μg/m³
56.3
PM2.5
μg/m³
3.7
NO2
μg/m³
14.3
CO
μg/m³
312.5
SO2
μg/m³
1.2
Weather
  • ℃
  • ℉
9℃
93%
7 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM10
  • O3
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 69
Alamosa County
AQI 10
Arapahoe County
AQI 69
Archuleta County
AQI 34
Baca County
AQI 55
Bent County
AQI 51
Boulder County
AQI 26
Broomfield County
AQI 69
Chaffee County
AQI 5
Cheyenne County
AQI 37
Clear Creek County
AQI 20
Conejos County
AQI 10
Costilla County
AQI 10
Crowley County
AQI 27
Custer County
AQI 12
Delta County
AQI 18
Denver County
AQI 69
Dolores County
AQI 10
Douglas County
AQI 69
Eagle County
AQI 13
El Paso County
AQI 24
Elbert County
AQI 19
Fremont County
AQI 17
Garfield County
AQI 14
Gilpin County
AQI 22
Grand County
AQI 15
Gunnison County
AQI 28
Hinsdale County
AQI 8
Huerfano County
AQI 9
Jackson County
AQI 21
Jefferson County
AQI 63
La Plata County
AQI 36
Lake County
AQI 6
Larimer County
AQI 29
Las Animas County
AQI 38
Lincoln County
AQI 20
Logan County
AQI 22
Mesa County
AQI 25
Mineral County
AQI 6
Moffat County
AQI 21
Montezuma County
AQI 31
Montrose County
AQI 18
Morgan County
AQI 42
Otero County
AQI 39
Ouray County
AQI 15
Park County
AQI 11
Phillips County
AQI 26
Pitkin County
AQI 13
Prowers County
AQI 55
Pueblo County
AQI 27
Rio Blanco County
AQI 27
Rio Grande County
AQI 10
Routt County
AQI 15
Saguache County
AQI 8
San Juan County
AQI 15
San Miguel County
AQI 15
Sedgwick County
AQI 24
Summit County
AQI 11
Teller County
AQI 24
Washington County
AQI 21
Weld County
AQI 51
Yuma County
AQI 30
Data Sources
http://www.airnow.gov/

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Breckenridge
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Frisco
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Wildernest
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Bailey
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