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Colorado

United States

2026-06-21 22:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
125.7
PM10
μg/m³
25.6
PM2.5
μg/m³
7.3
NO2
μg/m³
4.4
CO
μg/m³
166.7
SO2
μg/m³
2
Weather
  • ℃
  • ℉
19℃
17%
19 kph
2 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 45
Alamosa County
AQI 24
Arapahoe County
AQI 45
Archuleta County
AQI 47
Baca County
AQI 10
Bent County
AQI 11
Boulder County
AQI 43
Broomfield County
AQI 30
Chaffee County
AQI 5
Cheyenne County
AQI 11
Clear Creek County
AQI 38
Conejos County
AQI 24
Costilla County
AQI 7
Crowley County
AQI 10
Custer County
AQI 10
Delta County
AQI 21
Denver County
AQI 42
Dolores County
AQI 10
Douglas County
AQI 40
Eagle County
AQI 3
El Paso County
AQI 41
Elbert County
AQI 28
Fremont County
AQI 16
Garfield County
AQI 8
Gilpin County
AQI 38
Grand County
AQI 4
Gunnison County
AQI 41
Hinsdale County
AQI 22
Huerfano County
AQI 6
Jackson County
AQI 3
Jefferson County
AQI 44
La Plata County
AQI 43
Lake County
AQI 3
Larimer County
AQI 38
Las Animas County
AQI 5
Lincoln County
AQI 11
Logan County
AQI 4
Mesa County
AQI 42
Mineral County
AQI 9
Moffat County
AQI 6
Montezuma County
AQI 43
Montrose County
AQI 21
Morgan County
AQI 3
Otero County
AQI 9
Ouray County
AQI 39
Park County
AQI 4
Phillips County
AQI 4
Pitkin County
AQI 38
Prowers County
AQI 27
Pueblo County
AQI 41
Rio Blanco County
AQI 4
Rio Grande County
AQI 24
Routt County
AQI 9
Saguache County
AQI 9
San Juan County
AQI 39
San Miguel County
AQI 39
Sedgwick County
AQI 5
Summit County
AQI 5
Teller County
AQI 17
Washington County
AQI 4
Weld County
AQI 45
Yuma County
AQI 4
Data Sources
http://www.airnow.gov/

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AQI 24
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AQI 39
Breckenridge
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AQI 3
Wildernest
AQI 3
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