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Colorado

United States

2026-06-02 23:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
117.3
PM10
μg/m³
21.4
PM2.5
μg/m³
3.8
NO2
μg/m³
7.8
CO
μg/m³
187.5
SO2
μg/m³
1.6
Weather
  • ℃
  • ℉
12℃
43%
9 kph
1 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 32
Alamosa County
AQI 26
Arapahoe County
AQI 36
Archuleta County
AQI 43
Baca County
AQI 7
Bent County
AQI 9
Boulder County
AQI 39
Broomfield County
AQI 25
Chaffee County
AQI 3
Cheyenne County
AQI 7
Clear Creek County
AQI 36
Conejos County
AQI 26
Costilla County
AQI 8
Crowley County
AQI 8
Custer County
AQI 8
Delta County
AQI 20
Denver County
AQI 31
Dolores County
AQI 4
Douglas County
AQI 37
Eagle County
AQI 3
El Paso County
AQI 31
Elbert County
AQI 22
Fremont County
AQI 18
Garfield County
AQI 40
Gilpin County
AQI 37
Grand County
AQI 3
Gunnison County
AQI 38
Hinsdale County
AQI 12
Huerfano County
AQI 5
Jackson County
AQI 5
Jefferson County
AQI 40
La Plata County
AQI 42
Lake County
AQI 3
Larimer County
AQI 36
Las Animas County
AQI 9
Lincoln County
AQI 10
Logan County
AQI 6
Mesa County
AQI 41
Mineral County
AQI 5
Moffat County
AQI 6
Montezuma County
AQI 40
Montrose County
AQI 20
Morgan County
AQI 10
Otero County
AQI 8
Ouray County
AQI 21
Park County
AQI 5
Phillips County
AQI 6
Pitkin County
AQI 35
Prowers County
AQI 18
Pueblo County
AQI 36
Rio Blanco County
AQI 5
Rio Grande County
AQI 26
Routt County
AQI 26
Saguache County
AQI 7
San Juan County
AQI 21
San Miguel County
AQI 21
Sedgwick County
AQI 5
Summit County
AQI 5
Teller County
AQI 5
Washington County
AQI 8
Weld County
AQI 35
Yuma County
AQI 7
Data Sources
http://www.airnow.gov/

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