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  3. Colorado

Colorado

United States

2026-09-14 21:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
92.5
PM10
μg/m³
22.3
PM2.5
μg/m³
2.3
NO2
μg/m³
6
CO
μg/m³
187.5
SO2
μg/m³
1.5
Weather
  • ℃
  • ℉
15℃
37%
25 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 43
Alamosa County
AQI 15
Arapahoe County
AQI 42
Archuleta County
AQI 43
Baca County
AQI 8
Bent County
AQI 13
Boulder County
AQI 44
Broomfield County
AQI 42
Chaffee County
AQI 6
Cheyenne County
AQI 14
Clear Creek County
AQI 38
Conejos County
AQI 16
Costilla County
AQI 9
Crowley County
AQI 9
Custer County
AQI 7
Delta County
AQI 20
Denver County
AQI 42
Dolores County
AQI 12
Douglas County
AQI 42
Eagle County
AQI 6
El Paso County
AQI 44
Elbert County
AQI 25
Fremont County
AQI 9
Garfield County
AQI 31
Gilpin County
AQI 38
Grand County
AQI 7
Gunnison County
AQI 36
Hinsdale County
AQI 10
Huerfano County
AQI 5
Jackson County
AQI 14
Jefferson County
AQI 45
La Plata County
AQI 42
Lake County
AQI 9
Larimer County
AQI 39
Las Animas County
AQI 4
Lincoln County
AQI 9
Logan County
AQI 13
Mesa County
AQI 41
Mineral County
AQI 12
Moffat County
AQI 19
Montezuma County
AQI 36
Montrose County
AQI 17
Morgan County
AQI 11
Otero County
AQI 10
Ouray County
AQI 13
Park County
AQI 6
Phillips County
AQI 13
Pitkin County
AQI 33
Prowers County
AQI 8
Pueblo County
AQI 42
Rio Blanco County
AQI 16
Rio Grande County
AQI 16
Routt County
AQI 23
Saguache County
AQI 10
San Juan County
AQI 13
San Miguel County
AQI 15
Sedgwick County
AQI 17
Summit County
AQI 6
Teller County
AQI 6
Washington County
AQI 11
Weld County
AQI 48
Yuma County
AQI 12
Data Sources
http://www.airnow.gov/

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