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Colorado

United States

2025-12-19 08:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
4.8
O3
μg/m³
61.2
PM10
μg/m³
14.3
NO2
μg/m³
23.3
CO
μg/m³
270.8
SO2
μg/m³
2.9
Weather
  • ℃
  • ℉
-6℃
49%
17 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • PM10
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 19
Alamosa County
AQI 30
Arapahoe County
AQI 30
Archuleta County
AQI 34
Baca County
AQI 25
Bent County
AQI 20
Boulder County
AQI 40
Broomfield County
AQI 14
Chaffee County
AQI 24
Cheyenne County
AQI 22
Clear Creek County
AQI 19
Conejos County
AQI 30
Costilla County
AQI 50
Crowley County
AQI 20
Custer County
AQI 32
Delta County
AQI 48
Denver County
AQI 23
Dolores County
AQI 33
Douglas County
AQI 29
Eagle County
AQI 38
El Paso County
AQI 26
Elbert County
AQI 27
Fremont County
AQI 33
Garfield County
AQI 39
Gilpin County
AQI 39
Grand County
AQI 26
Gunnison County
AQI 40
Hinsdale County
AQI 33
Huerfano County
AQI 20
Jackson County
AQI 26
Jefferson County
AQI 39
La Plata County
AQI 42
Lake County
AQI 38
Larimer County
AQI 27
Las Animas County
AQI 20
Lincoln County
AQI 22
Logan County
AQI 51
Mesa County
AQI 71
Mineral County
AQI 33
Moffat County
AQI 29
Montezuma County
AQI 26
Montrose County
AQI 48
Morgan County
AQI 33
Otero County
AQI 24
Ouray County
AQI 25
Park County
AQI 19
Phillips County
AQI 51
Pitkin County
AQI 29
Prowers County
AQI 14
Pueblo County
AQI 25
Rio Blanco County
AQI 47
Rio Grande County
AQI 30
Routt County
AQI 19
Saguache County
AQI 24
San Juan County
AQI 25
San Miguel County
AQI 25
Sedgwick County
AQI 51
Summit County
AQI 38
Teller County
AQI 24
Washington County
AQI 51
Weld County
AQI 20
Yuma County
AQI 51
Data Sources
http://www.airnow.gov/

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Bailey
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