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  3. Colorado

Colorado

United States

2026-06-05 03:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
103.1
PM10
μg/m³
27
PM2.5
μg/m³
4.4
NO2
μg/m³
12.6
CO
μg/m³
187.5
SO2
μg/m³
1.4
Weather
  • ℃
  • ℉
8℃
51%
6 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 48
Alamosa County
AQI 46
Arapahoe County
AQI 47
Archuleta County
AQI 29
Baca County
AQI 29
Bent County
AQI 54
Boulder County
AQI 60
Broomfield County
AQI 37
Chaffee County
AQI 17
Cheyenne County
AQI 34
Clear Creek County
AQI 47
Conejos County
AQI 23
Costilla County
AQI 14
Crowley County
AQI 47
Custer County
AQI 19
Delta County
AQI 37
Denver County
AQI 47
Dolores County
AQI 13
Douglas County
AQI 42
Eagle County
AQI 24
El Paso County
AQI 38
Elbert County
AQI 30
Fremont County
AQI 20
Garfield County
AQI 27
Gilpin County
AQI 66
Grand County
AQI 20
Gunnison County
AQI 47
Hinsdale County
AQI 20
Huerfano County
AQI 15
Jackson County
AQI 23
Jefferson County
AQI 70
La Plata County
AQI 37
Lake County
AQI 21
Larimer County
AQI 66
Las Animas County
AQI 17
Lincoln County
AQI 33
Logan County
AQI 30
Mesa County
AQI 48
Mineral County
AQI 17
Moffat County
AQI 31
Montezuma County
AQI 44
Montrose County
AQI 24
Morgan County
AQI 28
Otero County
AQI 57
Ouray County
AQI 26
Park County
AQI 22
Phillips County
AQI 29
Pitkin County
AQI 41
Prowers County
AQI 20
Pueblo County
AQI 43
Rio Blanco County
AQI 24
Rio Grande County
AQI 23
Routt County
AQI 31
Saguache County
AQI 18
San Juan County
AQI 26
San Miguel County
AQI 24
Sedgwick County
AQI 25
Summit County
AQI 21
Teller County
AQI 28
Washington County
AQI 33
Weld County
AQI 57
Yuma County
AQI 32
Data Sources
http://www.airnow.gov/

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