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Colorado

United States

2026-05-28 16:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
92.9
PM10
μg/m³
16.4
PM2.5
μg/m³
4.6
NO2
μg/m³
12.8
CO
μg/m³
208.3
SO2
μg/m³
1.8
Weather
  • ℃
  • ℉
12℃
55%
7 kph
8 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 32
Alamosa County
AQI 10
Arapahoe County
AQI 31
Archuleta County
AQI 39
Baca County
AQI 2
Bent County
AQI 2
Boulder County
AQI 19
Broomfield County
AQI 35
Chaffee County
AQI 4
Cheyenne County
AQI 3
Clear Creek County
AQI 24
Conejos County
AQI 10
Costilla County
AQI 5
Crowley County
AQI 1
Custer County
AQI 8
Delta County
AQI 20
Denver County
AQI 22
Dolores County
AQI 5
Douglas County
AQI 29
Eagle County
AQI 5
El Paso County
AQI 26
Elbert County
AQI 18
Fremont County
AQI 20
Garfield County
AQI 28
Gilpin County
AQI 32
Grand County
AQI 4
Gunnison County
AQI 36
Hinsdale County
AQI 17
Huerfano County
AQI 4
Jackson County
AQI 3
Jefferson County
AQI 27
La Plata County
AQI 39
Lake County
AQI 5
Larimer County
AQI 27
Las Animas County
AQI 2
Lincoln County
AQI 2
Logan County
AQI 6
Mesa County
AQI 33
Mineral County
AQI 6
Moffat County
AQI 6
Montezuma County
AQI 38
Montrose County
AQI 20
Morgan County
AQI 3
Otero County
AQI 1
Ouray County
AQI 17
Park County
AQI 3
Phillips County
AQI 7
Pitkin County
AQI 31
Prowers County
AQI 8
Pueblo County
AQI 26
Rio Blanco County
AQI 6
Rio Grande County
AQI 10
Routt County
AQI 8
Saguache County
AQI 5
San Juan County
AQI 17
San Miguel County
AQI 17
Sedgwick County
AQI 6
Summit County
AQI 6
Teller County
AQI 8
Washington County
AQI 5
Weld County
AQI 22
Yuma County
AQI 7
Data Sources
http://www.airnow.gov/

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