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  3. Colorado

Colorado

United States

2026-09-22 00:00
AQI (US)
Moderate
Pollutants|Pollens
O3
μg/m³
117.1
PM2.5
μg/m³
3
PM10
μg/m³
13.8
NO2
μg/m³
4.6
CO
μg/m³
208.3
SO2
μg/m³
1.2
Weather
  • ℃
  • ℉
11℃
53%
10 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • PM10
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 63
Alamosa County
AQI 14
Arapahoe County
AQI 49
Archuleta County
AQI 54
Baca County
AQI 10
Bent County
AQI 6
Boulder County
AQI 79
Broomfield County
AQI 19
Chaffee County
AQI 10
Cheyenne County
AQI 9
Clear Creek County
AQI 52
Conejos County
AQI 14
Costilla County
AQI 6
Crowley County
AQI 5
Custer County
AQI 8
Delta County
AQI 18
Denver County
AQI 48
Dolores County
AQI 7
Douglas County
AQI 50
Eagle County
AQI 13
El Paso County
AQI 58
Elbert County
AQI 31
Fremont County
AQI 15
Garfield County
AQI 44
Gilpin County
AQI 63
Grand County
AQI 13
Gunnison County
AQI 57
Hinsdale County
AQI 13
Huerfano County
AQI 6
Jackson County
AQI 14
Jefferson County
AQI 72
La Plata County
AQI 54
Lake County
AQI 11
Larimer County
AQI 79
Las Animas County
AQI 5
Lincoln County
AQI 6
Logan County
AQI 6
Mesa County
AQI 46
Mineral County
AQI 10
Moffat County
AQI 15
Montezuma County
AQI 43
Montrose County
AQI 18
Morgan County
AQI 9
Otero County
AQI 5
Ouray County
AQI 18
Park County
AQI 11
Phillips County
AQI 5
Pitkin County
AQI 43
Prowers County
AQI 11
Pueblo County
AQI 51
Rio Blanco County
AQI 16
Rio Grande County
AQI 14
Routt County
AQI 23
Saguache County
AQI 10
San Juan County
AQI 18
San Miguel County
AQI 18
Sedgwick County
AQI 4
Summit County
AQI 12
Teller County
AQI 14
Washington County
AQI 7
Weld County
AQI 69
Yuma County
AQI 6
Data Sources
http://www.airnow.gov/

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AQI 54
Breckenridge
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Bailey
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