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Colorado

United States

2026-05-29 18:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
119.9
PM10
μg/m³
19.3
PM2.5
μg/m³
4.6
NO2
μg/m³
8.7
CO
μg/m³
208.3
SO2
μg/m³
1.6
Weather
  • ℃
  • ℉
10℃
34%
9 kph
5 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 37
Alamosa County
AQI 11
Arapahoe County
AQI 39
Archuleta County
AQI 42
Baca County
AQI 7
Bent County
AQI 16
Boulder County
AQI 30
Broomfield County
AQI 44
Chaffee County
AQI 4
Cheyenne County
AQI 11
Clear Creek County
AQI 34
Conejos County
AQI 11
Costilla County
AQI 6
Crowley County
AQI 17
Custer County
AQI 7
Delta County
AQI 18
Denver County
AQI 36
Dolores County
AQI 5
Douglas County
AQI 41
Eagle County
AQI 5
El Paso County
AQI 29
Elbert County
AQI 23
Fremont County
AQI 23
Garfield County
AQI 40
Gilpin County
AQI 39
Grand County
AQI 5
Gunnison County
AQI 41
Hinsdale County
AQI 8
Huerfano County
AQI 4
Jackson County
AQI 6
Jefferson County
AQI 40
La Plata County
AQI 46
Lake County
AQI 5
Larimer County
AQI 34
Las Animas County
AQI 5
Lincoln County
AQI 13
Logan County
AQI 5
Mesa County
AQI 41
Mineral County
AQI 5
Moffat County
AQI 7
Montezuma County
AQI 44
Montrose County
AQI 18
Morgan County
AQI 8
Otero County
AQI 18
Ouray County
AQI 13
Park County
AQI 5
Phillips County
AQI 5
Pitkin County
AQI 36
Prowers County
AQI 14
Pueblo County
AQI 35
Rio Blanco County
AQI 6
Rio Grande County
AQI 11
Routt County
AQI 16
Saguache County
AQI 6
San Juan County
AQI 13
San Miguel County
AQI 13
Sedgwick County
AQI 5
Summit County
AQI 6
Teller County
AQI 11
Washington County
AQI 6
Weld County
AQI 35
Yuma County
AQI 5
Data Sources
http://www.airnow.gov/

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