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Colorado

United States

2026-06-01 19:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
129.5
PM10
μg/m³
23.1
PM2.5
μg/m³
4.5
NO2
μg/m³
9
CO
μg/m³
229.2
SO2
μg/m³
1.1
Weather
  • ℃
  • ℉
13℃
44%
14 kph
9 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 36
Alamosa County
AQI 24
Arapahoe County
AQI 41
Archuleta County
AQI 46
Baca County
AQI 13
Bent County
AQI 21
Boulder County
AQI 38
Broomfield County
AQI 34
Chaffee County
AQI 6
Cheyenne County
AQI 21
Clear Creek County
AQI 41
Conejos County
AQI 24
Costilla County
AQI 7
Crowley County
AQI 19
Custer County
AQI 11
Delta County
AQI 13
Denver County
AQI 35
Dolores County
AQI 5
Douglas County
AQI 40
Eagle County
AQI 7
El Paso County
AQI 38
Elbert County
AQI 26
Fremont County
AQI 28
Garfield County
AQI 41
Gilpin County
AQI 41
Grand County
AQI 7
Gunnison County
AQI 41
Hinsdale County
AQI 11
Huerfano County
AQI 8
Jackson County
AQI 9
Jefferson County
AQI 45
La Plata County
AQI 45
Lake County
AQI 6
Larimer County
AQI 43
Las Animas County
AQI 10
Lincoln County
AQI 15
Logan County
AQI 9
Mesa County
AQI 41
Mineral County
AQI 6
Moffat County
AQI 12
Montezuma County
AQI 40
Montrose County
AQI 13
Morgan County
AQI 12
Otero County
AQI 22
Ouray County
AQI 19
Park County
AQI 7
Phillips County
AQI 9
Pitkin County
AQI 35
Prowers County
AQI 44
Pueblo County
AQI 42
Rio Blanco County
AQI 9
Rio Grande County
AQI 24
Routt County
AQI 13
Saguache County
AQI 8
San Juan County
AQI 19
San Miguel County
AQI 19
Sedgwick County
AQI 9
Summit County
AQI 8
Teller County
AQI 8
Washington County
AQI 11
Weld County
AQI 43
Yuma County
AQI 11
Data Sources
http://www.airnow.gov/

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