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Colorado

United States

2026-06-18 05:00
AQI (China)
Excellent
Pollutants|Pollens
PM10
μg/m³
36.6
O3
μg/m³
95.6
PM2.5
μg/m³
5
NO2
μg/m³
4.6
CO
μg/m³
125
SO2
μg/m³
1.6
Weather
  • ℃
  • ℉
9℃
48%
4 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • PM10
  • O3
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 63
Alamosa County
AQI 27
Arapahoe County
AQI 34
Archuleta County
AQI 17
Baca County
AQI 13
Bent County
AQI 37
Boulder County
AQI 55
Broomfield County
AQI 73
Chaffee County
AQI 10
Cheyenne County
AQI 15
Clear Creek County
AQI 31
Conejos County
AQI 27
Costilla County
AQI 8
Crowley County
AQI 31
Custer County
AQI 12
Delta County
AQI 29
Denver County
AQI 39
Dolores County
AQI 4
Douglas County
AQI 33
Eagle County
AQI 4
El Paso County
AQI 29
Elbert County
AQI 21
Fremont County
AQI 46
Garfield County
AQI 38
Gilpin County
AQI 55
Grand County
AQI 9
Gunnison County
AQI 29
Hinsdale County
AQI 20
Huerfano County
AQI 4
Jackson County
AQI 18
Jefferson County
AQI 45
La Plata County
AQI 23
Lake County
AQI 8
Larimer County
AQI 32
Las Animas County
AQI 5
Lincoln County
AQI 14
Logan County
AQI 3
Mesa County
AQI 38
Mineral County
AQI 4
Moffat County
AQI 18
Montezuma County
AQI 27
Montrose County
AQI 29
Morgan County
AQI 3
Otero County
AQI 34
Ouray County
AQI 27
Park County
AQI 5
Phillips County
AQI 3
Pitkin County
AQI 24
Prowers County
AQI 53
Pueblo County
AQI 45
Rio Blanco County
AQI 5
Rio Grande County
AQI 27
Routt County
AQI 15
Saguache County
AQI 9
San Juan County
AQI 27
San Miguel County
AQI 27
Sedgwick County
AQI 4
Summit County
AQI 8
Teller County
AQI 10
Washington County
AQI 3
Weld County
AQI 33
Yuma County
AQI 3
Data Sources
http://www.airnow.gov/

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