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Colorado

United States

2026-05-30 22:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
140.8
PM10
μg/m³
15.8
PM2.5
μg/m³
2.6
NO2
μg/m³
6.9
CO
μg/m³
250
SO2
μg/m³
1.2
Weather
  • ℃
  • ℉
8℃
30%
18 kph
2 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 15
Arapahoe County
AQI 48
Archuleta County
AQI 41
Baca County
AQI 10
Bent County
AQI 19
Boulder County
AQI 47
Broomfield County
AQI 55
Chaffee County
AQI 5
Cheyenne County
AQI 13
Clear Creek County
AQI 43
Conejos County
AQI 15
Costilla County
AQI 7
Crowley County
AQI 13
Custer County
AQI 5
Delta County
AQI 9
Denver County
AQI 47
Dolores County
AQI 4
Douglas County
AQI 47
Eagle County
AQI 3
El Paso County
AQI 48
Elbert County
AQI 30
Fremont County
AQI 9
Garfield County
AQI 40
Gilpin County
AQI 43
Grand County
AQI 4
Gunnison County
AQI 41
Hinsdale County
AQI 7
Huerfano County
AQI 5
Jackson County
AQI 4
Jefferson County
AQI 47
La Plata County
AQI 40
Lake County
AQI 4
Larimer County
AQI 43
Las Animas County
AQI 7
Lincoln County
AQI 9
Logan County
AQI 11
Mesa County
AQI 41
Mineral County
AQI 5
Moffat County
AQI 2
Montezuma County
AQI 39
Montrose County
AQI 9
Morgan County
AQI 9
Otero County
AQI 17
Ouray County
AQI 10
Park County
AQI 4
Phillips County
AQI 11
Pitkin County
AQI 37
Prowers County
AQI 18
Pueblo County
AQI 49
Rio Blanco County
AQI 3
Rio Grande County
AQI 15
Routt County
AQI 5
Saguache County
AQI 6
San Juan County
AQI 10
San Miguel County
AQI 10
Sedgwick County
AQI 11
Summit County
AQI 5
Teller County
AQI 3
Washington County
AQI 8
Weld County
AQI 45
Yuma County
AQI 10
Data Sources
http://www.airnow.gov/

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