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Colorado

United States

2026-06-06 04:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
103.6
PM10
μg/m³
26.5
PM2.5
μg/m³
5.1
NO2
μg/m³
10.3
CO
μg/m³
229.2
SO2
μg/m³
1.5
Weather
  • ℃
  • ℉
9℃
46%
7 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 35
Alamosa County
AQI 31
Arapahoe County
AQI 34
Archuleta County
AQI 27
Baca County
AQI 4
Bent County
AQI 9
Boulder County
AQI 34
Broomfield County
AQI 27
Chaffee County
AQI 5
Cheyenne County
AQI 5
Clear Creek County
AQI 37
Conejos County
AQI 31
Costilla County
AQI 9
Crowley County
AQI 16
Custer County
AQI 11
Delta County
AQI 53
Denver County
AQI 31
Dolores County
AQI 6
Douglas County
AQI 18
Eagle County
AQI 8
El Paso County
AQI 32
Elbert County
AQI 23
Fremont County
AQI 30
Garfield County
AQI 19
Gilpin County
AQI 36
Grand County
AQI 8
Gunnison County
AQI 30
Hinsdale County
AQI 18
Huerfano County
AQI 9
Jackson County
AQI 8
Jefferson County
AQI 36
La Plata County
AQI 33
Lake County
AQI 5
Larimer County
AQI 36
Las Animas County
AQI 8
Lincoln County
AQI 6
Logan County
AQI 4
Mesa County
AQI 38
Mineral County
AQI 7
Moffat County
AQI 7
Montezuma County
AQI 35
Montrose County
AQI 53
Morgan County
AQI 5
Otero County
AQI 20
Ouray County
AQI 17
Park County
AQI 5
Phillips County
AQI 4
Pitkin County
AQI 36
Prowers County
AQI 24
Pueblo County
AQI 34
Rio Blanco County
AQI 9
Rio Grande County
AQI 31
Routt County
AQI 19
Saguache County
AQI 9
San Juan County
AQI 17
San Miguel County
AQI 17
Sedgwick County
AQI 4
Summit County
AQI 8
Teller County
AQI 6
Washington County
AQI 4
Weld County
AQI 36
Yuma County
AQI 4
Data Sources
http://www.airnow.gov/

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AQI 37
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