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Colorado

United States

2026-03-12 03:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
88.5
PM10
μg/m³
19.1
PM2.5
μg/m³
4.2
NO2
μg/m³
10.4
CO
μg/m³
208.3
SO2
μg/m³
0.7
Weather
  • ℃
  • ℉
-10℃
51%
14 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 27
Alamosa County
AQI 10
Arapahoe County
AQI 29
Archuleta County
AQI 21
Baca County
AQI 8
Bent County
AQI 11
Boulder County
AQI 28
Broomfield County
AQI 23
Chaffee County
AQI 10
Cheyenne County
AQI 18
Clear Creek County
AQI 7
Conejos County
AQI 10
Costilla County
AQI 9
Crowley County
AQI 11
Custer County
AQI 8
Delta County
AQI 19
Denver County
AQI 28
Dolores County
AQI 16
Douglas County
AQI 29
Eagle County
AQI 32
El Paso County
AQI 25
Elbert County
AQI 26
Fremont County
AQI 20
Garfield County
AQI 19
Gilpin County
AQI 39
Grand County
AQI 13
Gunnison County
AQI 35
Hinsdale County
AQI 32
Huerfano County
AQI 6
Jackson County
AQI 13
Jefferson County
AQI 31
La Plata County
AQI 34
Lake County
AQI 32
Larimer County
AQI 30
Las Animas County
AQI 6
Lincoln County
AQI 7
Logan County
AQI 14
Mesa County
AQI 29
Mineral County
AQI 32
Moffat County
AQI 20
Montezuma County
AQI 29
Montrose County
AQI 19
Morgan County
AQI 14
Otero County
AQI 7
Ouray County
AQI 36
Park County
AQI 7
Phillips County
AQI 14
Pitkin County
AQI 28
Prowers County
AQI 21
Pueblo County
AQI 19
Rio Blanco County
AQI 20
Rio Grande County
AQI 10
Routt County
AQI 29
Saguache County
AQI 10
San Juan County
AQI 36
San Miguel County
AQI 36
Sedgwick County
AQI 14
Summit County
AQI 32
Teller County
AQI 6
Washington County
AQI 14
Weld County
AQI 30
Yuma County
AQI 14
Data Sources
http://www.airnow.gov/

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