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Colorado

United States

2026-09-22 05:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
77.2
PM10
μg/m³
13.1
NO2
μg/m³
10.9
PM2.5
μg/m³
3.3
CO
μg/m³
208.3
SO2
μg/m³
1.4
Weather
  • ℃
  • ℉
4℃
84%
6 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • NO2
  • PM2.5
  • CO
  • SO2
Places included
Adams County
AQI 25
Alamosa County
AQI 15
Arapahoe County
AQI 30
Archuleta County
AQI 17
Baca County
AQI 5
Bent County
AQI 13
Boulder County
AQI 26
Broomfield County
AQI 11
Chaffee County
AQI 5
Cheyenne County
AQI 4
Clear Creek County
AQI 27
Conejos County
AQI 15
Costilla County
AQI 4
Crowley County
AQI 13
Custer County
AQI 6
Delta County
AQI 18
Denver County
AQI 26
Dolores County
AQI 4
Douglas County
AQI 24
Eagle County
AQI 7
El Paso County
AQI 32
Elbert County
AQI 20
Fremont County
AQI 10
Garfield County
AQI 19
Gilpin County
AQI 31
Grand County
AQI 7
Gunnison County
AQI 23
Hinsdale County
AQI 11
Huerfano County
AQI 7
Jackson County
AQI 6
Jefferson County
AQI 28
La Plata County
AQI 22
Lake County
AQI 5
Larimer County
AQI 24
Las Animas County
AQI 6
Lincoln County
AQI 3
Logan County
AQI 4
Mesa County
AQI 23
Mineral County
AQI 3
Moffat County
AQI 5
Montezuma County
AQI 27
Montrose County
AQI 18
Morgan County
AQI 4
Otero County
AQI 22
Ouray County
AQI 19
Park County
AQI 4
Phillips County
AQI 4
Pitkin County
AQI 22
Prowers County
AQI 5
Pueblo County
AQI 23
Rio Blanco County
AQI 8
Rio Grande County
AQI 15
Routt County
AQI 11
Saguache County
AQI 5
San Juan County
AQI 19
San Miguel County
AQI 16
Sedgwick County
AQI 3
Summit County
AQI 7
Teller County
AQI 4
Washington County
AQI 4
Weld County
AQI 22
Yuma County
AQI 4
Data Sources
http://www.airnow.gov/

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