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Colorado

United States

2026-05-28 07:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
79.4
PM10
μg/m³
8.8
NO2
μg/m³
12.3
PM2.5
μg/m³
3.5
CO
μg/m³
208.3
SO2
μg/m³
1.4
Weather
  • ℃
  • ℉
1℃
96%
4 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • NO2
  • PM2.5
  • CO
  • SO2
Places included
Adams County
AQI 25
Alamosa County
AQI 10
Arapahoe County
AQI 27
Archuleta County
AQI 27
Baca County
AQI 4
Bent County
AQI 5
Boulder County
AQI 16
Broomfield County
AQI 11
Chaffee County
AQI 6
Cheyenne County
AQI 4
Clear Creek County
AQI 26
Conejos County
AQI 10
Costilla County
AQI 4
Crowley County
AQI 3
Custer County
AQI 3
Delta County
AQI 18
Denver County
AQI 30
Dolores County
AQI 4
Douglas County
AQI 24
Eagle County
AQI 4
El Paso County
AQI 28
Elbert County
AQI 19
Fremont County
AQI 6
Garfield County
AQI 27
Gilpin County
AQI 29
Grand County
AQI 3
Gunnison County
AQI 19
Hinsdale County
AQI 8
Huerfano County
AQI 2
Jackson County
AQI 6
Jefferson County
AQI 21
La Plata County
AQI 27
Lake County
AQI 5
Larimer County
AQI 21
Las Animas County
AQI 3
Lincoln County
AQI 3
Logan County
AQI 7
Mesa County
AQI 31
Mineral County
AQI 5
Moffat County
AQI 3
Montezuma County
AQI 30
Montrose County
AQI 18
Morgan County
AQI 3
Otero County
AQI 3
Ouray County
AQI 10
Park County
AQI 4
Phillips County
AQI 9
Pitkin County
AQI 27
Prowers County
AQI 8
Pueblo County
AQI 27
Rio Blanco County
AQI 5
Rio Grande County
AQI 10
Routt County
AQI 3
Saguache County
AQI 5
San Juan County
AQI 10
San Miguel County
AQI 10
Sedgwick County
AQI 8
Summit County
AQI 3
Teller County
AQI 6
Washington County
AQI 5
Weld County
AQI 21
Yuma County
AQI 9
Data Sources
http://www.airnow.gov/

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