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  3. Colorado

Colorado

United States

2026-06-03 13:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
5.6
PM10
μg/m³
31
O3
μg/m³
66.4
NO2
μg/m³
19.6
CO
μg/m³
312.5
SO2
μg/m³
2.2
Weather
  • ℃
  • ℉
11℃
42%
3 kph
3 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • PM10
  • O3
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 41
Alamosa County
AQI 32
Arapahoe County
AQI 36
Archuleta County
AQI 48
Baca County
AQI 29
Bent County
AQI 42
Boulder County
AQI 33
Broomfield County
AQI 42
Chaffee County
AQI 12
Cheyenne County
AQI 24
Clear Creek County
AQI 27
Conejos County
AQI 32
Costilla County
AQI 14
Crowley County
AQI 37
Custer County
AQI 14
Delta County
AQI 32
Denver County
AQI 34
Dolores County
AQI 10
Douglas County
AQI 27
Eagle County
AQI 12
El Paso County
AQI 34
Elbert County
AQI 25
Fremont County
AQI 30
Garfield County
AQI 25
Gilpin County
AQI 41
Grand County
AQI 19
Gunnison County
AQI 32
Hinsdale County
AQI 18
Huerfano County
AQI 11
Jackson County
AQI 25
Jefferson County
AQI 32
La Plata County
AQI 30
Lake County
AQI 12
Larimer County
AQI 35
Las Animas County
AQI 19
Lincoln County
AQI 30
Logan County
AQI 15
Mesa County
AQI 38
Mineral County
AQI 12
Moffat County
AQI 25
Montezuma County
AQI 35
Montrose County
AQI 32
Morgan County
AQI 16
Otero County
AQI 39
Ouray County
AQI 53
Park County
AQI 18
Phillips County
AQI 17
Pitkin County
AQI 27
Prowers County
AQI 17
Pueblo County
AQI 29
Rio Blanco County
AQI 23
Rio Grande County
AQI 32
Routt County
AQI 24
Saguache County
AQI 14
San Juan County
AQI 53
San Miguel County
AQI 53
Sedgwick County
AQI 17
Summit County
AQI 14
Teller County
AQI 34
Washington County
AQI 19
Weld County
AQI 51
Yuma County
AQI 18
Data Sources
http://www.airnow.gov/

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Breckenridge
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Silverthorne
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Wildernest
AQI 14
Bailey
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Winter Park
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