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Colorado

United States

2026-06-01 05:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
104.6
PM10
μg/m³
17.8
NO2
μg/m³
10.9
PM2.5
μg/m³
3.5
CO
μg/m³
208.3
SO2
μg/m³
1.1
Weather
  • ℃
  • ℉
3℃
66%
3 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • NO2
  • PM2.5
  • CO
  • SO2
Places included
Adams County
AQI 37
Alamosa County
AQI 25
Arapahoe County
AQI 42
Archuleta County
AQI 27
Baca County
AQI 23
Bent County
AQI 40
Boulder County
AQI 27
Broomfield County
AQI 20
Chaffee County
AQI 9
Cheyenne County
AQI 13
Clear Creek County
AQI 33
Conejos County
AQI 25
Costilla County
AQI 10
Crowley County
AQI 31
Custer County
AQI 12
Delta County
AQI 21
Denver County
AQI 35
Dolores County
AQI 6
Douglas County
AQI 38
Eagle County
AQI 11
El Paso County
AQI 32
Elbert County
AQI 26
Fremont County
AQI 24
Garfield County
AQI 30
Gilpin County
AQI 36
Grand County
AQI 11
Gunnison County
AQI 29
Hinsdale County
AQI 9
Huerfano County
AQI 14
Jackson County
AQI 9
Jefferson County
AQI 39
La Plata County
AQI 31
Lake County
AQI 10
Larimer County
AQI 31
Las Animas County
AQI 11
Lincoln County
AQI 13
Logan County
AQI 12
Mesa County
AQI 35
Mineral County
AQI 6
Moffat County
AQI 8
Montezuma County
AQI 34
Montrose County
AQI 21
Morgan County
AQI 10
Otero County
AQI 46
Ouray County
AQI 11
Park County
AQI 9
Phillips County
AQI 13
Pitkin County
AQI 26
Prowers County
AQI 44
Pueblo County
AQI 34
Rio Blanco County
AQI 14
Rio Grande County
AQI 25
Routt County
AQI 13
Saguache County
AQI 11
San Juan County
AQI 11
San Miguel County
AQI 11
Sedgwick County
AQI 11
Summit County
AQI 12
Teller County
AQI 6
Washington County
AQI 11
Weld County
AQI 28
Yuma County
AQI 10
Data Sources
http://www.airnow.gov/

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