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Colorado

United States

2026-06-03 06:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
85.1
PM10
μg/m³
17.1
NO2
μg/m³
12.2
PM2.5
μg/m³
4.1
CO
μg/m³
187.5
SO2
μg/m³
0.9
Weather
  • ℃
  • ℉
4℃
78%
4 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • NO2
  • PM2.5
  • CO
  • SO2
Places included
Adams County
AQI 29
Alamosa County
AQI 11
Arapahoe County
AQI 31
Archuleta County
AQI 25
Baca County
AQI 6
Bent County
AQI 4
Boulder County
AQI 26
Broomfield County
AQI 23
Chaffee County
AQI 4
Cheyenne County
AQI 4
Clear Creek County
AQI 28
Conejos County
AQI 11
Costilla County
AQI 4
Crowley County
AQI 12
Custer County
AQI 5
Delta County
AQI 46
Denver County
AQI 33
Dolores County
AQI 3
Douglas County
AQI 36
Eagle County
AQI 4
El Paso County
AQI 18
Elbert County
AQI 20
Fremont County
AQI 14
Garfield County
AQI 24
Gilpin County
AQI 27
Grand County
AQI 7
Gunnison County
AQI 28
Hinsdale County
AQI 10
Huerfano County
AQI 3
Jackson County
AQI 6
Jefferson County
AQI 32
La Plata County
AQI 35
Lake County
AQI 4
Larimer County
AQI 20
Las Animas County
AQI 5
Lincoln County
AQI 4
Logan County
AQI 3
Mesa County
AQI 31
Mineral County
AQI 4
Moffat County
AQI 7
Montezuma County
AQI 29
Montrose County
AQI 46
Morgan County
AQI 6
Otero County
AQI 11
Ouray County
AQI 14
Park County
AQI 6
Phillips County
AQI 3
Pitkin County
AQI 28
Prowers County
AQI 12
Pueblo County
AQI 22
Rio Blanco County
AQI 6
Rio Grande County
AQI 11
Routt County
AQI 11
Saguache County
AQI 5
San Juan County
AQI 14
San Miguel County
AQI 14
Sedgwick County
AQI 3
Summit County
AQI 7
Teller County
AQI 7
Washington County
AQI 4
Weld County
AQI 32
Yuma County
AQI 3
Data Sources
http://www.airnow.gov/

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