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Colorado

United States

2026-05-28 17:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
111.4
PM10
μg/m³
16.9
PM2.5
μg/m³
4.1
NO2
μg/m³
10.3
CO
μg/m³
208.3
SO2
μg/m³
1.7
Weather
  • ℃
  • ℉
15℃
32%
10 kph
9 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 31
Alamosa County
AQI 14
Arapahoe County
AQI 35
Archuleta County
AQI 43
Baca County
AQI 2
Bent County
AQI 3
Boulder County
AQI 29
Broomfield County
AQI 25
Chaffee County
AQI 5
Cheyenne County
AQI 4
Clear Creek County
AQI 31
Conejos County
AQI 14
Costilla County
AQI 6
Crowley County
AQI 2
Custer County
AQI 6
Delta County
AQI 17
Denver County
AQI 32
Dolores County
AQI 6
Douglas County
AQI 33
Eagle County
AQI 7
El Paso County
AQI 29
Elbert County
AQI 20
Fremont County
AQI 17
Garfield County
AQI 38
Gilpin County
AQI 33
Grand County
AQI 7
Gunnison County
AQI 38
Hinsdale County
AQI 13
Huerfano County
AQI 4
Jackson County
AQI 5
Jefferson County
AQI 34
La Plata County
AQI 41
Lake County
AQI 6
Larimer County
AQI 33
Las Animas County
AQI 4
Lincoln County
AQI 3
Logan County
AQI 6
Mesa County
AQI 41
Mineral County
AQI 6
Moffat County
AQI 7
Montezuma County
AQI 43
Montrose County
AQI 17
Morgan County
AQI 3
Otero County
AQI 3
Ouray County
AQI 20
Park County
AQI 4
Phillips County
AQI 6
Pitkin County
AQI 37
Prowers County
AQI 10
Pueblo County
AQI 33
Rio Blanco County
AQI 5
Rio Grande County
AQI 14
Routt County
AQI 19
Saguache County
AQI 6
San Juan County
AQI 20
San Miguel County
AQI 20
Sedgwick County
AQI 5
Summit County
AQI 7
Teller County
AQI 10
Washington County
AQI 5
Weld County
AQI 34
Yuma County
AQI 6
Data Sources
http://www.airnow.gov/

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