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Colorado

United States

2026-06-21 04:00
AQI (China)
Good
Pollutants|Pollens
PM10
μg/m³
56.3
O3
μg/m³
97.3
PM2.5
μg/m³
8.8
NO2
μg/m³
9.8
CO
μg/m³
250
SO2
μg/m³
1.9
Weather
  • ℃
  • ℉
9℃
23%
11 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • PM10
  • O3
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 96
Alamosa County
AQI 45
Arapahoe County
AQI 57
Archuleta County
AQI 23
Baca County
AQI 9
Bent County
AQI 32
Boulder County
AQI 47
Broomfield County
AQI 108
Chaffee County
AQI 3
Cheyenne County
AQI 27
Clear Creek County
AQI 35
Conejos County
AQI 45
Costilla County
AQI 8
Crowley County
AQI 31
Custer County
AQI 4
Delta County
AQI 35
Denver County
AQI 59
Dolores County
AQI 5
Douglas County
AQI 66
Eagle County
AQI 12
El Paso County
AQI 38
Elbert County
AQI 24
Fremont County
AQI 13
Garfield County
AQI 18
Gilpin County
AQI 47
Grand County
AQI 8
Gunnison County
AQI 35
Hinsdale County
AQI 44
Huerfano County
AQI 3
Jackson County
AQI 8
Jefferson County
AQI 64
La Plata County
AQI 28
Lake County
AQI 7
Larimer County
AQI 30
Las Animas County
AQI 9
Lincoln County
AQI 23
Logan County
AQI 16
Mesa County
AQI 37
Mineral County
AQI 5
Moffat County
AQI 13
Montezuma County
AQI 35
Montrose County
AQI 35
Morgan County
AQI 9
Otero County
AQI 55
Ouray County
AQI 72
Park County
AQI 3
Phillips County
AQI 19
Pitkin County
AQI 31
Prowers County
AQI 84
Pueblo County
AQI 37
Rio Blanco County
AQI 10
Rio Grande County
AQI 45
Routt County
AQI 64
Saguache County
AQI 8
San Juan County
AQI 72
San Miguel County
AQI 72
Sedgwick County
AQI 14
Summit County
AQI 12
Teller County
AQI 13
Washington County
AQI 18
Weld County
AQI 36
Yuma County
AQI 23
Data Sources
http://www.airnow.gov/

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