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Colorado

United States

2026-06-05 22:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
141.5
PM10
μg/m³
27.1
PM2.5
μg/m³
4.5
NO2
μg/m³
4.6
CO
μg/m³
145.8
SO2
μg/m³
1.7
Weather
  • ℃
  • ℉
19℃
28%
4 kph
3 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 49
Alamosa County
AQI 22
Arapahoe County
AQI 46
Archuleta County
AQI 43
Baca County
AQI 7
Bent County
AQI 15
Boulder County
AQI 49
Broomfield County
AQI 41
Chaffee County
AQI 7
Cheyenne County
AQI 7
Clear Creek County
AQI 45
Conejos County
AQI 25
Costilla County
AQI 9
Crowley County
AQI 17
Custer County
AQI 10
Delta County
AQI 26
Denver County
AQI 49
Dolores County
AQI 9
Douglas County
AQI 43
Eagle County
AQI 7
El Paso County
AQI 42
Elbert County
AQI 29
Fremont County
AQI 20
Garfield County
AQI 41
Gilpin County
AQI 67
Grand County
AQI 7
Gunnison County
AQI 41
Hinsdale County
AQI 21
Huerfano County
AQI 8
Jackson County
AQI 7
Jefferson County
AQI 72
La Plata County
AQI 42
Lake County
AQI 6
Larimer County
AQI 45
Las Animas County
AQI 11
Lincoln County
AQI 8
Logan County
AQI 11
Mesa County
AQI 43
Mineral County
AQI 8
Moffat County
AQI 10
Montezuma County
AQI 41
Montrose County
AQI 24
Morgan County
AQI 12
Otero County
AQI 24
Ouray County
AQI 34
Park County
AQI 6
Phillips County
AQI 9
Pitkin County
AQI 35
Prowers County
AQI 18
Pueblo County
AQI 41
Rio Blanco County
AQI 10
Rio Grande County
AQI 25
Routt County
AQI 21
Saguache County
AQI 10
San Juan County
AQI 34
San Miguel County
AQI 34
Sedgwick County
AQI 10
Summit County
AQI 7
Teller County
AQI 7
Washington County
AQI 10
Weld County
AQI 46
Yuma County
AQI 9
Data Sources
http://www.airnow.gov/

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