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  3. Colorado

Colorado

United States

2026-06-03 00:00
AQI (US)
Moderate
Pollutants|Pollens
O3
μg/m³
118.8
PM2.5
μg/m³
3.7
PM10
μg/m³
18.8
NO2
μg/m³
8.3
CO
μg/m³
229.2
SO2
μg/m³
1.2
Weather
  • ℃
  • ℉
9℃
50%
9 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • PM10
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 63
Alamosa County
AQI 22
Arapahoe County
AQI 45
Archuleta County
AQI 82
Baca County
AQI 21
Bent County
AQI 22
Boulder County
AQI 47
Broomfield County
AQI 22
Chaffee County
AQI 10
Cheyenne County
AQI 24
Clear Creek County
AQI 50
Conejos County
AQI 22
Costilla County
AQI 18
Crowley County
AQI 23
Custer County
AQI 19
Delta County
AQI 18
Denver County
AQI 65
Dolores County
AQI 11
Douglas County
AQI 54
Eagle County
AQI 8
El Paso County
AQI 44
Elbert County
AQI 29
Fremont County
AQI 24
Garfield County
AQI 60
Gilpin County
AQI 51
Grand County
AQI 12
Gunnison County
AQI 66
Hinsdale County
AQI 15
Huerfano County
AQI 20
Jackson County
AQI 15
Jefferson County
AQI 71
La Plata County
AQI 71
Lake County
AQI 9
Larimer County
AQI 54
Las Animas County
AQI 22
Lincoln County
AQI 23
Logan County
AQI 22
Mesa County
AQI 72
Mineral County
AQI 11
Moffat County
AQI 16
Montezuma County
AQI 66
Montrose County
AQI 18
Morgan County
AQI 23
Otero County
AQI 23
Ouray County
AQI 22
Park County
AQI 18
Phillips County
AQI 20
Pitkin County
AQI 51
Prowers County
AQI 25
Pueblo County
AQI 41
Rio Blanco County
AQI 14
Rio Grande County
AQI 22
Routt County
AQI 19
Saguache County
AQI 14
San Juan County
AQI 22
San Miguel County
AQI 22
Sedgwick County
AQI 17
Summit County
AQI 12
Teller County
AQI 25
Washington County
AQI 23
Weld County
AQI 49
Yuma County
AQI 22
Data Sources
http://www.airnow.gov/

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