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Colorado

United States

2026-09-28 23:00
AQI (India)
Satisfactory
Pollutants|Pollens
O3
μg/m³
75.6
PM10
μg/m³
14.8
NO2
μg/m³
8.8
CO
μg/m³
208.3
PM2.5
μg/m³
3.1
SO2
μg/m³
1.9
Weather
  • ℃
  • ℉
4℃
95%
12 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (India)
  • Pollen
  • O3
  • PM10
  • NO2
  • CO
  • PM2.5
  • SO2
Places included
Adams County
AQI 75
Alamosa County
AQI 8
Arapahoe County
AQI 82
Archuleta County
AQI 69
Baca County
AQI 4
Bent County
AQI 4
Boulder County
AQI 97
Broomfield County
AQI 31
Chaffee County
AQI 2
Cheyenne County
AQI 7
Clear Creek County
AQI 78
Conejos County
AQI 8
Costilla County
AQI 4
Crowley County
AQI 4
Custer County
AQI 4
Delta County
AQI 6
Denver County
AQI 72
Dolores County
AQI 6
Douglas County
AQI 84
Eagle County
AQI 3
El Paso County
AQI 71
Elbert County
AQI 51
Fremont County
AQI 7
Garfield County
AQI 56
Gilpin County
AQI 86
Grand County
AQI 3
Gunnison County
AQI 71
Hinsdale County
AQI 3
Huerfano County
AQI 4
Jackson County
AQI 3
Jefferson County
AQI 91
La Plata County
AQI 75
Lake County
AQI 2
Larimer County
AQI 100
Las Animas County
AQI 3
Lincoln County
AQI 7
Logan County
AQI 5
Mesa County
AQI 75
Mineral County
AQI 2
Moffat County
AQI 8
Montezuma County
AQI 72
Montrose County
AQI 6
Morgan County
AQI 5
Otero County
AQI 3
Ouray County
AQI 5
Park County
AQI 2
Phillips County
AQI 5
Pitkin County
AQI 60
Prowers County
AQI 21
Pueblo County
AQI 45
Rio Blanco County
AQI 9
Rio Grande County
AQI 8
Routt County
AQI 6
Saguache County
AQI 3
San Juan County
AQI 5
San Miguel County
AQI 5
Sedgwick County
AQI 5
Summit County
AQI 3
Teller County
AQI 7
Washington County
AQI 6
Weld County
AQI 85
Yuma County
AQI 6
Data Sources
http://www.airnow.gov/

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