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Colorado

United States

2026-06-01 07:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
93.5
PM10
μg/m³
14.1
PM2.5
μg/m³
4.1
NO2
μg/m³
10
CO
μg/m³
145.8
SO2
μg/m³
1.2
Weather
  • ℃
  • ℉
2℃
66%
5 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 27
Alamosa County
AQI 22
Arapahoe County
AQI 36
Archuleta County
AQI 17
Baca County
AQI 21
Bent County
AQI 30
Boulder County
AQI 26
Broomfield County
AQI 16
Chaffee County
AQI 10
Cheyenne County
AQI 16
Clear Creek County
AQI 32
Conejos County
AQI 22
Costilla County
AQI 10
Crowley County
AQI 25
Custer County
AQI 10
Delta County
AQI 23
Denver County
AQI 34
Dolores County
AQI 7
Douglas County
AQI 31
Eagle County
AQI 11
El Paso County
AQI 25
Elbert County
AQI 24
Fremont County
AQI 13
Garfield County
AQI 23
Gilpin County
AQI 33
Grand County
AQI 11
Gunnison County
AQI 29
Hinsdale County
AQI 10
Huerfano County
AQI 12
Jackson County
AQI 10
Jefferson County
AQI 39
La Plata County
AQI 27
Lake County
AQI 11
Larimer County
AQI 27
Las Animas County
AQI 9
Lincoln County
AQI 13
Logan County
AQI 11
Mesa County
AQI 31
Mineral County
AQI 6
Moffat County
AQI 9
Montezuma County
AQI 31
Montrose County
AQI 23
Morgan County
AQI 9
Otero County
AQI 31
Ouray County
AQI 11
Park County
AQI 9
Phillips County
AQI 12
Pitkin County
AQI 25
Prowers County
AQI 18
Pueblo County
AQI 32
Rio Blanco County
AQI 13
Rio Grande County
AQI 22
Routt County
AQI 13
Saguache County
AQI 10
San Juan County
AQI 11
San Miguel County
AQI 11
Sedgwick County
AQI 10
Summit County
AQI 12
Teller County
AQI 6
Washington County
AQI 11
Weld County
AQI 38
Yuma County
AQI 10
Data Sources
http://www.airnow.gov/

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