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Colorado

United States

2026-09-18 07:00
AQI (China)
Excellent
Pollutants|Pollens
PM10
μg/m³
16.8
O3
μg/m³
39.6
NO2
μg/m³
18.9
PM2.5
μg/m³
3.6
CO
μg/m³
354.2
SO2
μg/m³
1.3
Weather
  • ℃
  • ℉
6℃
96%
1 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • PM10
  • O3
  • NO2
  • PM2.5
  • CO
  • SO2
Places included
Adams County
AQI 35
Alamosa County
AQI 6
Arapahoe County
AQI 35
Archuleta County
AQI 11
Baca County
AQI 15
Bent County
AQI 36
Boulder County
AQI 11
Broomfield County
AQI 35
Chaffee County
AQI 3
Cheyenne County
AQI 14
Clear Creek County
AQI 14
Conejos County
AQI 6
Costilla County
AQI 4
Crowley County
AQI 25
Custer County
AQI 4
Delta County
AQI 10
Denver County
AQI 35
Dolores County
AQI 2
Douglas County
AQI 35
Eagle County
AQI 8
El Paso County
AQI 17
Elbert County
AQI 13
Fremont County
AQI 7
Garfield County
AQI 3
Gilpin County
AQI 15
Grand County
AQI 5
Gunnison County
AQI 14
Hinsdale County
AQI 6
Huerfano County
AQI 3
Jackson County
AQI 4
Jefferson County
AQI 31
La Plata County
AQI 14
Lake County
AQI 3
Larimer County
AQI 13
Las Animas County
AQI 10
Lincoln County
AQI 13
Logan County
AQI 5
Mesa County
AQI 10
Mineral County
AQI 2
Moffat County
AQI 2
Montezuma County
AQI 14
Montrose County
AQI 10
Morgan County
AQI 9
Otero County
AQI 42
Ouray County
AQI 9
Park County
AQI 3
Phillips County
AQI 7
Pitkin County
AQI 3
Prowers County
AQI 39
Pueblo County
AQI 19
Rio Blanco County
AQI 3
Rio Grande County
AQI 6
Routt County
AQI 8
Saguache County
AQI 3
San Juan County
AQI 9
San Miguel County
AQI 9
Sedgwick County
AQI 8
Summit County
AQI 6
Teller County
AQI 5
Washington County
AQI 7
Weld County
AQI 21
Yuma County
AQI 9
Data Sources
http://www.airnow.gov/

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