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Colorado

United States

2026-09-29 10:00
AQI (India)
Good
Pollutants|Pollens
O3
μg/m³
44.7
NO2
μg/m³
11.8
PM10
μg/m³
12.4
CO
μg/m³
187.5
PM2.5
μg/m³
2.1
SO2
μg/m³
1.4
Weather
  • ℃
  • ℉
2℃
94%
2 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (India)
  • Pollen
  • O3
  • NO2
  • PM10
  • CO
  • PM2.5
  • SO2
Places included
Adams County
AQI 39
Alamosa County
AQI 3
Arapahoe County
AQI 60
Archuleta County
AQI 52
Baca County
AQI 11
Bent County
AQI 8
Boulder County
AQI 43
Broomfield County
AQI 32
Chaffee County
AQI 2
Cheyenne County
AQI 6
Clear Creek County
AQI 49
Conejos County
AQI 1
Costilla County
AQI 3
Crowley County
AQI 7
Custer County
AQI 4
Delta County
AQI 8
Denver County
AQI 56
Dolores County
AQI 4
Douglas County
AQI 43
Eagle County
AQI 5
El Paso County
AQI 39
Elbert County
AQI 40
Fremont County
AQI 2
Garfield County
AQI 18
Gilpin County
AQI 45
Grand County
AQI 3
Gunnison County
AQI 43
Hinsdale County
AQI 4
Huerfano County
AQI 4
Jackson County
AQI 5
Jefferson County
AQI 63
La Plata County
AQI 45
Lake County
AQI 1
Larimer County
AQI 52
Las Animas County
AQI 7
Lincoln County
AQI 6
Logan County
AQI 9
Mesa County
AQI 52
Mineral County
AQI 1
Moffat County
AQI 9
Montezuma County
AQI 48
Montrose County
AQI 7
Morgan County
AQI 13
Otero County
AQI 7
Ouray County
AQI 6
Park County
AQI 4
Phillips County
AQI 7
Pitkin County
AQI 11
Prowers County
AQI 6
Pueblo County
AQI 45
Rio Blanco County
AQI 11
Rio Grande County
AQI 1
Routt County
AQI 5
Saguache County
AQI 3
San Juan County
AQI 6
San Miguel County
AQI 5
Sedgwick County
AQI 8
Summit County
AQI 3
Teller County
AQI 3
Washington County
AQI 7
Weld County
AQI 57
Yuma County
AQI 7
Data Sources
http://www.airnow.gov/

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