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  3. Colorado

Colorado

United States

2026-09-15 10:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
68.6
PM2.5
μg/m³
4.3
PM10
μg/m³
15.3
CO
μg/m³
312.5
NO2
μg/m³
5.7
SO2
μg/m³
1.6
Weather
  • ℃
  • ℉
4℃
85%
3 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • PM10
  • CO
  • NO2
  • SO2
Places included
Adams County
AQI 38
Alamosa County
AQI 19
Arapahoe County
AQI 40
Archuleta County
AQI 15
Baca County
AQI 12
Bent County
AQI 21
Boulder County
AQI 38
Broomfield County
AQI 28
Chaffee County
AQI 13
Cheyenne County
AQI 15
Clear Creek County
AQI 29
Conejos County
AQI 19
Costilla County
AQI 10
Crowley County
AQI 21
Custer County
AQI 14
Delta County
AQI 19
Denver County
AQI 36
Dolores County
AQI 11
Douglas County
AQI 38
Eagle County
AQI 22
El Paso County
AQI 33
Elbert County
AQI 24
Fremont County
AQI 8
Garfield County
AQI 14
Gilpin County
AQI 25
Grand County
AQI 15
Gunnison County
AQI 24
Hinsdale County
AQI 14
Huerfano County
AQI 15
Jackson County
AQI 17
Jefferson County
AQI 37
La Plata County
AQI 37
Lake County
AQI 17
Larimer County
AQI 65
Las Animas County
AQI 12
Lincoln County
AQI 19
Logan County
AQI 11
Mesa County
AQI 23
Mineral County
AQI 38
Moffat County
AQI 33
Montezuma County
AQI 32
Montrose County
AQI 19
Morgan County
AQI 15
Otero County
AQI 24
Ouray County
AQI 15
Park County
AQI 12
Phillips County
AQI 12
Pitkin County
AQI 19
Prowers County
AQI 8
Pueblo County
AQI 30
Rio Blanco County
AQI 28
Rio Grande County
AQI 19
Routt County
AQI 17
Saguache County
AQI 23
San Juan County
AQI 15
San Miguel County
AQI 15
Sedgwick County
AQI 12
Summit County
AQI 20
Teller County
AQI 24
Washington County
AQI 16
Weld County
AQI 61
Yuma County
AQI 14
Data Sources
http://www.airnow.gov/

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