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Colorado

United States

2026-09-16 14:00
AQI (China)
Excellent
Pollutants|Pollens
PM10
μg/m³
28.4
O3
μg/m³
42.9
NO2
μg/m³
15.6
PM2.5
μg/m³
4.4
CO
μg/m³
312.5
SO2
μg/m³
2.6
Weather
  • ℃
  • ℉
13℃
43%
9 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • PM10
  • O3
  • NO2
  • PM2.5
  • CO
  • SO2
Places included
Adams County
AQI 53
Alamosa County
AQI 13
Arapahoe County
AQI 53
Archuleta County
AQI 9
Baca County
AQI 5
Bent County
AQI 5
Boulder County
AQI 31
Broomfield County
AQI 53
Chaffee County
AQI 5
Cheyenne County
AQI 5
Clear Creek County
AQI 20
Conejos County
AQI 13
Costilla County
AQI 5
Crowley County
AQI 4
Custer County
AQI 10
Delta County
AQI 22
Denver County
AQI 53
Dolores County
AQI 4
Douglas County
AQI 53
Eagle County
AQI 3
El Paso County
AQI 16
Elbert County
AQI 19
Fremont County
AQI 46
Garfield County
AQI 7
Gilpin County
AQI 31
Grand County
AQI 3
Gunnison County
AQI 9
Hinsdale County
AQI 5
Huerfano County
AQI 5
Jackson County
AQI 4
Jefferson County
AQI 50
La Plata County
AQI 9
Lake County
AQI 3
Larimer County
AQI 18
Las Animas County
AQI 4
Lincoln County
AQI 4
Logan County
AQI 5
Mesa County
AQI 18
Mineral County
AQI 5
Moffat County
AQI 5
Montezuma County
AQI 16
Montrose County
AQI 22
Morgan County
AQI 5
Otero County
AQI 4
Ouray County
AQI 10
Park County
AQI 7
Phillips County
AQI 6
Pitkin County
AQI 10
Prowers County
AQI 23
Pueblo County
AQI 32
Rio Blanco County
AQI 5
Rio Grande County
AQI 13
Routt County
AQI 7
Saguache County
AQI 7
San Juan County
AQI 10
San Miguel County
AQI 10
Sedgwick County
AQI 5
Summit County
AQI 6
Teller County
AQI 9
Washington County
AQI 5
Weld County
AQI 42
Yuma County
AQI 6
Data Sources
http://www.airnow.gov/

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