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Colorado

United States

2026-09-24 15:00
AQI (China)
Excellent
Pollutants|Pollens
PM10
μg/m³
21.8
O3
μg/m³
44
NO2
μg/m³
17.9
PM2.5
μg/m³
3.8
CO
μg/m³
291.7
SO2
μg/m³
2
Weather
  • ℃
  • ℉
6℃
73%
10 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • PM10
  • O3
  • NO2
  • PM2.5
  • CO
  • SO2
Places included
Adams County
AQI 46
Alamosa County
AQI 8
Arapahoe County
AQI 46
Archuleta County
AQI 15
Baca County
AQI 2
Bent County
AQI 1
Boulder County
AQI 15
Broomfield County
AQI 46
Chaffee County
AQI 4
Cheyenne County
AQI 1
Clear Creek County
AQI 20
Conejos County
AQI 8
Costilla County
AQI 2
Crowley County
AQI 2
Custer County
AQI 3
Delta County
AQI 12
Denver County
AQI 46
Dolores County
AQI 3
Douglas County
AQI 46
Eagle County
AQI 4
El Paso County
AQI 17
Elbert County
AQI 19
Fremont County
AQI 11
Garfield County
AQI 11
Gilpin County
AQI 24
Grand County
AQI 6
Gunnison County
AQI 9
Hinsdale County
AQI 10
Huerfano County
AQI 2
Jackson County
AQI 5
Jefferson County
AQI 41
La Plata County
AQI 10
Lake County
AQI 5
Larimer County
AQI 19
Las Animas County
AQI 2
Lincoln County
AQI 1
Logan County
AQI 9
Mesa County
AQI 14
Mineral County
AQI 3
Moffat County
AQI 6
Montezuma County
AQI 15
Montrose County
AQI 12
Morgan County
AQI 9
Otero County
AQI 1
Ouray County
AQI 17
Park County
AQI 9
Phillips County
AQI 5
Pitkin County
AQI 8
Prowers County
AQI 9
Pueblo County
AQI 17
Rio Blanco County
AQI 5
Rio Grande County
AQI 8
Routt County
AQI 10
Saguache County
AQI 4
San Juan County
AQI 17
San Miguel County
AQI 17
Sedgwick County
AQI 6
Summit County
AQI 10
Teller County
AQI 6
Washington County
AQI 4
Weld County
AQI 30
Yuma County
AQI 2
Data Sources
http://www.airnow.gov/

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