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Colorado

United States

2025-12-15 13:00
AQI (China)
Excellent
Pollutants|Pollens
NO2
μg/m³
41
PM10
μg/m³
17.5
O3
μg/m³
52.6
PM2.5
μg/m³
5.1
CO
μg/m³
625
SO2
μg/m³
3.3
Weather
  • ℃
  • ℉
-3℃
26%
9 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • NO2
  • PM10
  • O3
  • PM2.5
  • CO
  • SO2
Places included
Adams County
AQI 40
Alamosa County
AQI 33
Arapahoe County
AQI 25
Archuleta County
AQI 22
Baca County
AQI 8
Bent County
AQI 11
Boulder County
AQI 12
Broomfield County
AQI 47
Chaffee County
AQI 10
Cheyenne County
AQI 18
Clear Creek County
AQI 7
Conejos County
AQI 33
Costilla County
AQI 12
Crowley County
AQI 11
Custer County
AQI 10
Delta County
AQI 19
Denver County
AQI 32
Dolores County
AQI 16
Douglas County
AQI 23
Eagle County
AQI 27
El Paso County
AQI 24
Elbert County
AQI 22
Fremont County
AQI 16
Garfield County
AQI 4
Gilpin County
AQI 31
Grand County
AQI 12
Gunnison County
AQI 29
Hinsdale County
AQI 11
Huerfano County
AQI 6
Jackson County
AQI 12
Jefferson County
AQI 27
La Plata County
AQI 11
Lake County
AQI 27
Larimer County
AQI 23
Las Animas County
AQI 6
Lincoln County
AQI 7
Logan County
AQI 14
Mesa County
AQI 11
Mineral County
AQI 11
Moffat County
AQI 17
Montezuma County
AQI 17
Montrose County
AQI 19
Morgan County
AQI 13
Otero County
AQI 7
Ouray County
AQI 4
Park County
AQI 7
Phillips County
AQI 14
Pitkin County
AQI 26
Prowers County
AQI 9
Pueblo County
AQI 25
Rio Blanco County
AQI 20
Rio Grande County
AQI 33
Routt County
AQI 22
Saguache County
AQI 10
San Juan County
AQI 4
San Miguel County
AQI 4
Sedgwick County
AQI 14
Summit County
AQI 27
Teller County
AQI 5
Washington County
AQI 14
Weld County
AQI 22
Yuma County
AQI 14
Data Sources
http://www.airnow.gov/

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