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Colorado

United States

2026-06-21 11:00
AQI (China)
Excellent
Pollutants|Pollens
PM10
μg/m³
22.1
O3
μg/m³
66.9
PM2.5
μg/m³
7
NO2
μg/m³
9.5
CO
μg/m³
229.2
SO2
μg/m³
1.9
Weather
  • ℃
  • ℉
5℃
47%
8 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • PM10
  • O3
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 30
Alamosa County
AQI 26
Arapahoe County
AQI 27
Archuleta County
AQI 19
Baca County
AQI 10
Bent County
AQI 20
Boulder County
AQI 19
Broomfield County
AQI 32
Chaffee County
AQI 5
Cheyenne County
AQI 21
Clear Creek County
AQI 22
Conejos County
AQI 25
Costilla County
AQI 7
Crowley County
AQI 11
Custer County
AQI 8
Delta County
AQI 18
Denver County
AQI 26
Dolores County
AQI 5
Douglas County
AQI 28
Eagle County
AQI 15
El Paso County
AQI 24
Elbert County
AQI 17
Fremont County
AQI 34
Garfield County
AQI 8
Gilpin County
AQI 23
Grand County
AQI 10
Gunnison County
AQI 32
Hinsdale County
AQI 8
Huerfano County
AQI 3
Jackson County
AQI 12
Jefferson County
AQI 24
La Plata County
AQI 22
Lake County
AQI 13
Larimer County
AQI 24
Las Animas County
AQI 3
Lincoln County
AQI 16
Logan County
AQI 12
Mesa County
AQI 30
Mineral County
AQI 5
Moffat County
AQI 13
Montezuma County
AQI 29
Montrose County
AQI 17
Morgan County
AQI 9
Otero County
AQI 14
Ouray County
AQI 11
Park County
AQI 7
Phillips County
AQI 14
Pitkin County
AQI 30
Prowers County
AQI 8
Pueblo County
AQI 24
Rio Blanco County
AQI 12
Rio Grande County
AQI 25
Routt County
AQI 58
Saguache County
AQI 7
San Juan County
AQI 11
San Miguel County
AQI 11
Sedgwick County
AQI 12
Summit County
AQI 12
Teller County
AQI 15
Washington County
AQI 18
Weld County
AQI 26
Yuma County
AQI 13
Data Sources
http://www.airnow.gov/

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