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Colorado

United States

2026-01-02 03:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
6.3
O3
μg/m³
43.7
NO2
μg/m³
37
PM10
μg/m³
17.3
CO
μg/m³
791.7
SO2
μg/m³
3.4
Weather
  • ℃
  • ℉
-5℃
97%
11 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • NO2
  • PM10
  • CO
  • SO2
Places included
Adams County
AQI 46
Alamosa County
AQI 40
Arapahoe County
AQI 50
Archuleta County
AQI 23
Baca County
AQI 25
Bent County
AQI 21
Boulder County
AQI 36
Broomfield County
AQI 43
Chaffee County
AQI 24
Cheyenne County
AQI 22
Clear Creek County
AQI 19
Conejos County
AQI 40
Costilla County
AQI 31
Crowley County
AQI 21
Custer County
AQI 24
Delta County
AQI 32
Denver County
AQI 53
Dolores County
AQI 33
Douglas County
AQI 35
Eagle County
AQI 30
El Paso County
AQI 31
Elbert County
AQI 24
Fremont County
AQI 4
Garfield County
AQI 23
Gilpin County
AQI 36
Grand County
AQI 33
Gunnison County
AQI 33
Hinsdale County
AQI 33
Huerfano County
AQI 20
Jackson County
AQI 33
Jefferson County
AQI 48
La Plata County
AQI 39
Lake County
AQI 30
Larimer County
AQI 54
Las Animas County
AQI 20
Lincoln County
AQI 22
Logan County
AQI 51
Mesa County
AQI 39
Mineral County
AQI 33
Moffat County
AQI 36
Montezuma County
AQI 15
Montrose County
AQI 32
Morgan County
AQI 43
Otero County
AQI 24
Ouray County
AQI 28
Park County
AQI 19
Phillips County
AQI 51
Pitkin County
AQI 13
Prowers County
AQI 43
Pueblo County
AQI 30
Rio Blanco County
AQI 33
Rio Grande County
AQI 40
Routt County
AQI 51
Saguache County
AQI 24
San Juan County
AQI 28
San Miguel County
AQI 28
Sedgwick County
AQI 51
Summit County
AQI 30
Teller County
AQI 31
Washington County
AQI 51
Weld County
AQI 55
Yuma County
AQI 51
Data Sources
http://www.airnow.gov/

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