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Colorado

United States

2026-06-21 01:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
142.2
PM10
μg/m³
35.4
PM2.5
μg/m³
5.8
NO2
μg/m³
8.5
CO
μg/m³
312.5
SO2
μg/m³
2.5
Weather
  • ℃
  • ℉
11℃
26%
23 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 53
Alamosa County
AQI 39
Arapahoe County
AQI 48
Archuleta County
AQI 43
Baca County
AQI 5
Bent County
AQI 11
Boulder County
AQI 44
Broomfield County
AQI 57
Chaffee County
AQI 3
Cheyenne County
AQI 7
Clear Creek County
AQI 44
Conejos County
AQI 39
Costilla County
AQI 8
Crowley County
AQI 18
Custer County
AQI 5
Delta County
AQI 19
Denver County
AQI 49
Dolores County
AQI 6
Douglas County
AQI 50
Eagle County
AQI 8
El Paso County
AQI 41
Elbert County
AQI 29
Fremont County
AQI 31
Garfield County
AQI 43
Gilpin County
AQI 43
Grand County
AQI 7
Gunnison County
AQI 43
Hinsdale County
AQI 13
Huerfano County
AQI 4
Jackson County
AQI 7
Jefferson County
AQI 50
La Plata County
AQI 42
Lake County
AQI 3
Larimer County
AQI 50
Las Animas County
AQI 10
Lincoln County
AQI 7
Logan County
AQI 8
Mesa County
AQI 43
Mineral County
AQI 5
Moffat County
AQI 8
Montezuma County
AQI 40
Montrose County
AQI 19
Morgan County
AQI 7
Otero County
AQI 29
Ouray County
AQI 15
Park County
AQI 3
Phillips County
AQI 8
Pitkin County
AQI 41
Prowers County
AQI 70
Pueblo County
AQI 43
Rio Blanco County
AQI 10
Rio Grande County
AQI 39
Routt County
AQI 28
Saguache County
AQI 7
San Juan County
AQI 15
San Miguel County
AQI 15
Sedgwick County
AQI 8
Summit County
AQI 8
Teller County
AQI 8
Washington County
AQI 7
Weld County
AQI 47
Yuma County
AQI 8
Data Sources
http://www.airnow.gov/

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