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Colorado

United States

2026-05-29 20:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
126.3
PM10
μg/m³
22
PM2.5
μg/m³
3.5
NO2
μg/m³
5.2
CO
μg/m³
208.3
SO2
μg/m³
1.5
Weather
  • ℃
  • ℉
8℃
37%
13 kph
8 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 46
Alamosa County
AQI 13
Arapahoe County
AQI 40
Archuleta County
AQI 43
Baca County
AQI 17
Bent County
AQI 30
Boulder County
AQI 53
Broomfield County
AQI 38
Chaffee County
AQI 4
Cheyenne County
AQI 12
Clear Creek County
AQI 38
Conejos County
AQI 13
Costilla County
AQI 5
Crowley County
AQI 12
Custer County
AQI 5
Delta County
AQI 15
Denver County
AQI 41
Dolores County
AQI 6
Douglas County
AQI 40
Eagle County
AQI 5
El Paso County
AQI 35
Elbert County
AQI 25
Fremont County
AQI 15
Garfield County
AQI 41
Gilpin County
AQI 53
Grand County
AQI 5
Gunnison County
AQI 41
Hinsdale County
AQI 10
Huerfano County
AQI 4
Jackson County
AQI 5
Jefferson County
AQI 42
La Plata County
AQI 44
Lake County
AQI 4
Larimer County
AQI 38
Las Animas County
AQI 4
Lincoln County
AQI 11
Logan County
AQI 5
Mesa County
AQI 41
Mineral County
AQI 5
Moffat County
AQI 7
Montezuma County
AQI 43
Montrose County
AQI 15
Morgan County
AQI 8
Otero County
AQI 13
Ouray County
AQI 16
Park County
AQI 4
Phillips County
AQI 5
Pitkin County
AQI 36
Prowers County
AQI 17
Pueblo County
AQI 39
Rio Blanco County
AQI 6
Rio Grande County
AQI 13
Routt County
AQI 11
Saguache County
AQI 6
San Juan County
AQI 16
San Miguel County
AQI 16
Sedgwick County
AQI 5
Summit County
AQI 6
Teller County
AQI 7
Washington County
AQI 6
Weld County
AQI 39
Yuma County
AQI 5
Data Sources
http://www.airnow.gov/

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