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Colorado

United States

2026-06-01 02:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
124.8
PM10
μg/m³
14.8
PM2.5
μg/m³
3.1
NO2
μg/m³
5.6
CO
μg/m³
145.8
SO2
μg/m³
1.3
Weather
  • ℃
  • ℉
5℃
52%
4 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 43
Alamosa County
AQI 19
Arapahoe County
AQI 42
Archuleta County
AQI 43
Baca County
AQI 19
Bent County
AQI 42
Boulder County
AQI 33
Broomfield County
AQI 14
Chaffee County
AQI 7
Cheyenne County
AQI 11
Clear Creek County
AQI 40
Conejos County
AQI 19
Costilla County
AQI 9
Crowley County
AQI 26
Custer County
AQI 10
Delta County
AQI 12
Denver County
AQI 39
Dolores County
AQI 8
Douglas County
AQI 39
Eagle County
AQI 6
El Paso County
AQI 38
Elbert County
AQI 27
Fremont County
AQI 18
Garfield County
AQI 36
Gilpin County
AQI 42
Grand County
AQI 6
Gunnison County
AQI 42
Hinsdale County
AQI 13
Huerfano County
AQI 8
Jackson County
AQI 5
Jefferson County
AQI 40
La Plata County
AQI 41
Lake County
AQI 7
Larimer County
AQI 36
Las Animas County
AQI 11
Lincoln County
AQI 11
Logan County
AQI 7
Mesa County
AQI 41
Mineral County
AQI 9
Moffat County
AQI 7
Montezuma County
AQI 39
Montrose County
AQI 12
Morgan County
AQI 9
Otero County
AQI 43
Ouray County
AQI 14
Park County
AQI 7
Phillips County
AQI 10
Pitkin County
AQI 38
Prowers County
AQI 22
Pueblo County
AQI 40
Rio Blanco County
AQI 7
Rio Grande County
AQI 19
Routt County
AQI 5
Saguache County
AQI 10
San Juan County
AQI 14
San Miguel County
AQI 14
Sedgwick County
AQI 8
Summit County
AQI 7
Teller County
AQI 5
Washington County
AQI 12
Weld County
AQI 37
Yuma County
AQI 13
Data Sources
http://www.airnow.gov/

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