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Colorado

United States

2026-05-28 11:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
63.5
NO2
μg/m³
19.2
PM10
μg/m³
8.9
PM2.5
μg/m³
3.5
CO
μg/m³
208.3
SO2
μg/m³
0.9
Weather
  • ℃
  • ℉
0℃
95%
3 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • NO2
  • PM10
  • PM2.5
  • CO
  • SO2
Places included
Adams County
AQI 22
Alamosa County
AQI 9
Arapahoe County
AQI 30
Archuleta County
AQI 19
Baca County
AQI 4
Bent County
AQI 5
Boulder County
AQI 17
Broomfield County
AQI 11
Chaffee County
AQI 5
Cheyenne County
AQI 4
Clear Creek County
AQI 21
Conejos County
AQI 8
Costilla County
AQI 5
Crowley County
AQI 3
Custer County
AQI 4
Delta County
AQI 15
Denver County
AQI 21
Dolores County
AQI 4
Douglas County
AQI 17
Eagle County
AQI 5
El Paso County
AQI 23
Elbert County
AQI 19
Fremont County
AQI 11
Garfield County
AQI 23
Gilpin County
AQI 21
Grand County
AQI 4
Gunnison County
AQI 17
Hinsdale County
AQI 7
Huerfano County
AQI 4
Jackson County
AQI 7
Jefferson County
AQI 18
La Plata County
AQI 25
Lake County
AQI 5
Larimer County
AQI 17
Las Animas County
AQI 4
Lincoln County
AQI 3
Logan County
AQI 8
Mesa County
AQI 22
Mineral County
AQI 6
Moffat County
AQI 4
Montezuma County
AQI 27
Montrose County
AQI 12
Morgan County
AQI 4
Otero County
AQI 4
Ouray County
AQI 9
Park County
AQI 5
Phillips County
AQI 11
Pitkin County
AQI 27
Prowers County
AQI 11
Pueblo County
AQI 24
Rio Blanco County
AQI 5
Rio Grande County
AQI 8
Routt County
AQI 6
Saguache County
AQI 5
San Juan County
AQI 9
San Miguel County
AQI 11
Sedgwick County
AQI 9
Summit County
AQI 4
Teller County
AQI 5
Washington County
AQI 6
Weld County
AQI 17
Yuma County
AQI 11
Data Sources
http://www.airnow.gov/

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