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Colorado

United States

2026-08-12 04:00
CAQI (Europe)
Low
Pollutants|Pollens
O3
μg/m³
109.6
PM10
μg/m³
23.1
PM2.5
μg/m³
8.3
NO2
μg/m³
18.7
CO
μg/m³
354.2
SO2
μg/m³
1.1
Weather
  • ℃
  • ℉
9℃
74%
6 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 47
Alamosa County
AQI 26
Arapahoe County
AQI 55
Archuleta County
AQI 33
Baca County
AQI 10
Bent County
AQI 16
Boulder County
AQI 48
Broomfield County
AQI 28
Chaffee County
AQI 5
Cheyenne County
AQI 14
Clear Creek County
AQI 48
Conejos County
AQI 26
Costilla County
AQI 10
Crowley County
AQI 17
Custer County
AQI 8
Delta County
AQI 31
Denver County
AQI 46
Dolores County
AQI 11
Douglas County
AQI 42
Eagle County
AQI 10
El Paso County
AQI 50
Elbert County
AQI 31
Fremont County
AQI 17
Garfield County
AQI 34
Gilpin County
AQI 50
Grand County
AQI 10
Gunnison County
AQI 47
Hinsdale County
AQI 17
Huerfano County
AQI 8
Jackson County
AQI 11
Jefferson County
AQI 54
La Plata County
AQI 39
Lake County
AQI 4
Larimer County
AQI 45
Las Animas County
AQI 12
Lincoln County
AQI 18
Logan County
AQI 17
Mesa County
AQI 51
Mineral County
AQI 4
Moffat County
AQI 11
Montezuma County
AQI 55
Montrose County
AQI 31
Morgan County
AQI 15
Otero County
AQI 17
Ouray County
AQI 15
Park County
AQI 7
Phillips County
AQI 15
Pitkin County
AQI 34
Prowers County
AQI 54
Pueblo County
AQI 51
Rio Blanco County
AQI 17
Rio Grande County
AQI 26
Routt County
AQI 20
Saguache County
AQI 9
San Juan County
AQI 15
San Miguel County
AQI 15
Sedgwick County
AQI 14
Summit County
AQI 8
Teller County
AQI 20
Washington County
AQI 16
Weld County
AQI 47
Yuma County
AQI 16
Data Sources
http://www.airnow.gov/

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AQI 30
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AQI 48
Breckenridge
AQI 8
Silverthorne
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Frisco
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Wildernest
AQI 8
Bailey
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Idaho Springs
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