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Colorado

United States

2026-09-19 07:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
52.2
PM10
μg/m³
9.5
NO2
μg/m³
12.6
PM2.5
μg/m³
2.8
CO
μg/m³
208.3
SO2
μg/m³
1.1
Weather
  • ℃
  • ℉
5℃
80%
1 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • NO2
  • PM2.5
  • CO
  • SO2
Places included
Adams County
AQI 21
Alamosa County
AQI 4
Arapahoe County
AQI 13
Archuleta County
AQI 8
Baca County
AQI 7
Bent County
AQI 10
Boulder County
AQI 18
Broomfield County
AQI 13
Chaffee County
AQI 3
Cheyenne County
AQI 7
Clear Creek County
AQI 18
Conejos County
AQI 4
Costilla County
AQI 3
Crowley County
AQI 7
Custer County
AQI 4
Delta County
AQI 9
Denver County
AQI 18
Dolores County
AQI 3
Douglas County
AQI 23
Eagle County
AQI 6
El Paso County
AQI 18
Elbert County
AQI 9
Fremont County
AQI 3
Garfield County
AQI 10
Gilpin County
AQI 20
Grand County
AQI 3
Gunnison County
AQI 8
Hinsdale County
AQI 11
Huerfano County
AQI 3
Jackson County
AQI 4
Jefferson County
AQI 22
La Plata County
AQI 14
Lake County
AQI 3
Larimer County
AQI 20
Las Animas County
AQI 3
Lincoln County
AQI 6
Logan County
AQI 5
Mesa County
AQI 19
Mineral County
AQI 4
Moffat County
AQI 3
Montezuma County
AQI 25
Montrose County
AQI 9
Morgan County
AQI 6
Otero County
AQI 7
Ouray County
AQI 15
Park County
AQI 3
Phillips County
AQI 5
Pitkin County
AQI 15
Prowers County
AQI 15
Pueblo County
AQI 18
Rio Blanco County
AQI 4
Rio Grande County
AQI 4
Routt County
AQI 5
Saguache County
AQI 4
San Juan County
AQI 15
San Miguel County
AQI 15
Sedgwick County
AQI 5
Summit County
AQI 4
Teller County
AQI 3
Washington County
AQI 5
Weld County
AQI 15
Yuma County
AQI 6
Data Sources
http://www.airnow.gov/

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