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Colorado

United States

2026-09-22 03:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
82
PM10
μg/m³
13.7
NO2
μg/m³
12.1
PM2.5
μg/m³
3.2
CO
μg/m³
270.8
SO2
μg/m³
0.9
Weather
  • ℃
  • ℉
4℃
67%
6 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • NO2
  • PM2.5
  • CO
  • SO2
Places included
Adams County
AQI 27
Alamosa County
AQI 15
Arapahoe County
AQI 29
Archuleta County
AQI 17
Baca County
AQI 5
Bent County
AQI 12
Boulder County
AQI 34
Broomfield County
AQI 11
Chaffee County
AQI 5
Cheyenne County
AQI 4
Clear Creek County
AQI 28
Conejos County
AQI 15
Costilla County
AQI 4
Crowley County
AQI 12
Custer County
AQI 5
Delta County
AQI 18
Denver County
AQI 30
Dolores County
AQI 4
Douglas County
AQI 25
Eagle County
AQI 6
El Paso County
AQI 34
Elbert County
AQI 18
Fremont County
AQI 10
Garfield County
AQI 16
Gilpin County
AQI 33
Grand County
AQI 6
Gunnison County
AQI 25
Hinsdale County
AQI 12
Huerfano County
AQI 6
Jackson County
AQI 5
Jefferson County
AQI 34
La Plata County
AQI 20
Lake County
AQI 5
Larimer County
AQI 29
Las Animas County
AQI 7
Lincoln County
AQI 3
Logan County
AQI 3
Mesa County
AQI 22
Mineral County
AQI 3
Moffat County
AQI 5
Montezuma County
AQI 23
Montrose County
AQI 18
Morgan County
AQI 3
Otero County
AQI 21
Ouray County
AQI 19
Park County
AQI 4
Phillips County
AQI 4
Pitkin County
AQI 22
Prowers County
AQI 3
Pueblo County
AQI 27
Rio Blanco County
AQI 7
Rio Grande County
AQI 15
Routt County
AQI 15
Saguache County
AQI 5
San Juan County
AQI 19
San Miguel County
AQI 19
Sedgwick County
AQI 3
Summit County
AQI 6
Teller County
AQI 4
Washington County
AQI 4
Weld County
AQI 26
Yuma County
AQI 4
Data Sources
http://www.airnow.gov/

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