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  3. Colorado

Colorado

United States

2026-06-03 12:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
5.2
O3
μg/m³
59.2
PM10
μg/m³
21.6
NO2
μg/m³
26.3
CO
μg/m³
375
SO2
μg/m³
2.1
Weather
  • ℃
  • ℉
5℃
64%
5 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • PM10
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 46
Alamosa County
AQI 28
Arapahoe County
AQI 34
Archuleta County
AQI 24
Baca County
AQI 28
Bent County
AQI 42
Boulder County
AQI 22
Broomfield County
AQI 55
Chaffee County
AQI 15
Cheyenne County
AQI 21
Clear Creek County
AQI 29
Conejos County
AQI 28
Costilla County
AQI 14
Crowley County
AQI 37
Custer County
AQI 15
Delta County
AQI 27
Denver County
AQI 32
Dolores County
AQI 10
Douglas County
AQI 29
Eagle County
AQI 16
El Paso County
AQI 33
Elbert County
AQI 21
Fremont County
AQI 29
Garfield County
AQI 28
Gilpin County
AQI 39
Grand County
AQI 30
Gunnison County
AQI 38
Hinsdale County
AQI 16
Huerfano County
AQI 12
Jackson County
AQI 34
Jefferson County
AQI 33
La Plata County
AQI 28
Lake County
AQI 16
Larimer County
AQI 32
Las Animas County
AQI 18
Lincoln County
AQI 25
Logan County
AQI 16
Mesa County
AQI 51
Mineral County
AQI 11
Moffat County
AQI 26
Montezuma County
AQI 34
Montrose County
AQI 27
Morgan County
AQI 15
Otero County
AQI 41
Ouray County
AQI 25
Park County
AQI 23
Phillips County
AQI 17
Pitkin County
AQI 28
Prowers County
AQI 17
Pueblo County
AQI 26
Rio Blanco County
AQI 27
Rio Grande County
AQI 28
Routt County
AQI 20
Saguache County
AQI 16
San Juan County
AQI 25
San Miguel County
AQI 25
Sedgwick County
AQI 20
Summit County
AQI 18
Teller County
AQI 33
Washington County
AQI 16
Weld County
AQI 46
Yuma County
AQI 17
Data Sources
http://www.airnow.gov/

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