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Colorado

United States

2026-06-21 15:00
AQI (China)
Excellent
Pollutants|Pollens
PM10
μg/m³
27.5
O3
μg/m³
82.9
PM2.5
μg/m³
7.5
NO2
μg/m³
7.6
CO
μg/m³
229.2
SO2
μg/m³
2.4
Weather
  • ℃
  • ℉
14℃
34%
20 kph
6 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • PM10
  • O3
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 35
Alamosa County
AQI 28
Arapahoe County
AQI 28
Archuleta County
AQI 31
Baca County
AQI 15
Bent County
AQI 21
Boulder County
AQI 23
Broomfield County
AQI 40
Chaffee County
AQI 9
Cheyenne County
AQI 21
Clear Creek County
AQI 23
Conejos County
AQI 28
Costilla County
AQI 10
Crowley County
AQI 12
Custer County
AQI 9
Delta County
AQI 25
Denver County
AQI 26
Dolores County
AQI 5
Douglas County
AQI 33
Eagle County
AQI 13
El Paso County
AQI 27
Elbert County
AQI 15
Fremont County
AQI 35
Garfield County
AQI 12
Gilpin County
AQI 35
Grand County
AQI 9
Gunnison County
AQI 25
Hinsdale County
AQI 13
Huerfano County
AQI 4
Jackson County
AQI 7
Jefferson County
AQI 29
La Plata County
AQI 27
Lake County
AQI 11
Larimer County
AQI 29
Las Animas County
AQI 5
Lincoln County
AQI 13
Logan County
AQI 7
Mesa County
AQI 31
Mineral County
AQI 6
Moffat County
AQI 12
Montezuma County
AQI 33
Montrose County
AQI 25
Morgan County
AQI 8
Otero County
AQI 17
Ouray County
AQI 15
Park County
AQI 11
Phillips County
AQI 10
Pitkin County
AQI 26
Prowers County
AQI 11
Pueblo County
AQI 33
Rio Blanco County
AQI 13
Rio Grande County
AQI 28
Routt County
AQI 75
Saguache County
AQI 10
San Juan County
AQI 15
San Miguel County
AQI 15
Sedgwick County
AQI 9
Summit County
AQI 12
Teller County
AQI 12
Washington County
AQI 9
Weld County
AQI 29
Yuma County
AQI 14
Data Sources
http://www.airnow.gov/

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AQI 15
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AQI 23
Breckenridge
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Frisco
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Bailey
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