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Colorado

United States

2026-05-30 20:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
139.5
PM10
μg/m³
14.3
PM2.5
μg/m³
2.7
NO2
μg/m³
6
CO
μg/m³
229.2
SO2
μg/m³
1.4
Weather
  • ℃
  • ℉
7℃
33%
23 kph
5 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 47
Archuleta County
AQI 42
Baca County
AQI 11
Bent County
AQI 21
Boulder County
AQI 47
Broomfield County
AQI 31
Chaffee County
AQI 5
Cheyenne County
AQI 12
Clear Creek County
AQI 41
Conejos County
AQI 15
Costilla County
AQI 7
Crowley County
AQI 13
Custer County
AQI 6
Delta County
AQI 10
Denver County
AQI 46
Dolores County
AQI 4
Douglas County
AQI 46
Eagle County
AQI 4
El Paso County
AQI 51
Elbert County
AQI 29
Fremont County
AQI 9
Garfield County
AQI 39
Gilpin County
AQI 45
Grand County
AQI 4
Gunnison County
AQI 41
Hinsdale County
AQI 7
Huerfano County
AQI 6
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 8
Logan County
AQI 12
Mesa County
AQI 41
Mineral County
AQI 5
Moffat County
AQI 3
Montezuma County
AQI 39
Montrose County
AQI 10
Morgan County
AQI 8
Otero County
AQI 18
Ouray County
AQI 9
Park County
AQI 5
Phillips County
AQI 13
Pitkin County
AQI 37
Prowers County
AQI 17
Pueblo County
AQI 48
Rio Blanco County
AQI 3
Rio Grande County
AQI 15
Routt County
AQI 5
Saguache County
AQI 7
San Juan County
AQI 9
San Miguel County
AQI 9
Sedgwick County
AQI 12
Summit County
AQI 5
Teller County
AQI 5
Washington County
AQI 9
Weld County
AQI 39
Yuma County
AQI 12
Data Sources
http://www.airnow.gov/

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