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Colorado

United States

2026-06-20 23:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
140.8
PM10
μg/m³
40.9
PM2.5
μg/m³
6.4
NO2
μg/m³
8.4
CO
μg/m³
270.8
SO2
μg/m³
2.4
Weather
  • ℃
  • ℉
20℃
7%
31 kph
2 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 61
Alamosa County
AQI 31
Arapahoe County
AQI 54
Archuleta County
AQI 44
Baca County
AQI 5
Bent County
AQI 10
Boulder County
AQI 45
Broomfield County
AQI 66
Chaffee County
AQI 3
Cheyenne County
AQI 7
Clear Creek County
AQI 44
Conejos County
AQI 31
Costilla County
AQI 8
Crowley County
AQI 14
Custer County
AQI 8
Delta County
AQI 25
Denver County
AQI 54
Dolores County
AQI 6
Douglas County
AQI 65
Eagle County
AQI 7
El Paso County
AQI 35
Elbert County
AQI 29
Fremont County
AQI 30
Garfield County
AQI 43
Gilpin County
AQI 46
Grand County
AQI 6
Gunnison County
AQI 43
Hinsdale County
AQI 13
Huerfano County
AQI 4
Jackson County
AQI 7
Jefferson County
AQI 55
La Plata County
AQI 40
Lake County
AQI 3
Larimer County
AQI 51
Las Animas County
AQI 8
Lincoln County
AQI 9
Logan County
AQI 8
Mesa County
AQI 44
Mineral County
AQI 5
Moffat County
AQI 7
Montezuma County
AQI 40
Montrose County
AQI 25
Morgan County
AQI 7
Otero County
AQI 20
Ouray County
AQI 21
Park County
AQI 3
Phillips County
AQI 8
Pitkin County
AQI 43
Prowers County
AQI 83
Pueblo County
AQI 39
Rio Blanco County
AQI 10
Rio Grande County
AQI 31
Routt County
AQI 36
Saguache County
AQI 7
San Juan County
AQI 21
San Miguel County
AQI 21
Sedgwick County
AQI 8
Summit County
AQI 7
Teller County
AQI 7
Washington County
AQI 7
Weld County
AQI 54
Yuma County
AQI 9
Data Sources
http://www.airnow.gov/

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