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Colorado

United States

2026-05-28 19:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
127.6
PM10
μg/m³
15.4
PM2.5
μg/m³
3.6
NO2
μg/m³
6.8
CO
μg/m³
291.7
SO2
μg/m³
1
Weather
  • ℃
  • ℉
13℃
45%
14 kph
6 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 43
Alamosa County
AQI 15
Arapahoe County
AQI 39
Archuleta County
AQI 47
Baca County
AQI 4
Bent County
AQI 8
Boulder County
AQI 40
Broomfield County
AQI 24
Chaffee County
AQI 7
Cheyenne County
AQI 5
Clear Creek County
AQI 36
Conejos County
AQI 15
Costilla County
AQI 8
Crowley County
AQI 5
Custer County
AQI 7
Delta County
AQI 16
Denver County
AQI 41
Dolores County
AQI 5
Douglas County
AQI 41
Eagle County
AQI 9
El Paso County
AQI 32
Elbert County
AQI 24
Fremont County
AQI 14
Garfield County
AQI 39
Gilpin County
AQI 41
Grand County
AQI 7
Gunnison County
AQI 39
Hinsdale County
AQI 13
Huerfano County
AQI 6
Jackson County
AQI 7
Jefferson County
AQI 44
La Plata County
AQI 47
Lake County
AQI 8
Larimer County
AQI 37
Las Animas County
AQI 5
Lincoln County
AQI 3
Logan County
AQI 5
Mesa County
AQI 41
Mineral County
AQI 8
Moffat County
AQI 7
Montezuma County
AQI 44
Montrose County
AQI 16
Morgan County
AQI 3
Otero County
AQI 8
Ouray County
AQI 18
Park County
AQI 5
Phillips County
AQI 5
Pitkin County
AQI 38
Prowers County
AQI 7
Pueblo County
AQI 37
Rio Blanco County
AQI 7
Rio Grande County
AQI 15
Routt County
AQI 15
Saguache County
AQI 8
San Juan County
AQI 18
San Miguel County
AQI 18
Sedgwick County
AQI 5
Summit County
AQI 7
Teller County
AQI 9
Washington County
AQI 5
Weld County
AQI 39
Yuma County
AQI 5
Data Sources
http://www.airnow.gov/

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