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Colorado

United States

2026-06-18 21:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
147.5
PM10
μg/m³
29.8
PM2.5
μg/m³
4
NO2
μg/m³
9.5
CO
μg/m³
208.3
SO2
μg/m³
2.6
Weather
  • ℃
  • ℉
22℃
11%
19 kph
7 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 65
Alamosa County
AQI 24
Arapahoe County
AQI 49
Archuleta County
AQI 42
Baca County
AQI 29
Bent County
AQI 28
Boulder County
AQI 47
Broomfield County
AQI 44
Chaffee County
AQI 6
Cheyenne County
AQI 8
Clear Creek County
AQI 45
Conejos County
AQI 24
Costilla County
AQI 8
Crowley County
AQI 25
Custer County
AQI 13
Delta County
AQI 23
Denver County
AQI 62
Dolores County
AQI 4
Douglas County
AQI 70
Eagle County
AQI 7
El Paso County
AQI 36
Elbert County
AQI 31
Fremont County
AQI 38
Garfield County
AQI 49
Gilpin County
AQI 49
Grand County
AQI 4
Gunnison County
AQI 49
Hinsdale County
AQI 12
Huerfano County
AQI 15
Jackson County
AQI 4
Jefferson County
AQI 65
La Plata County
AQI 39
Lake County
AQI 6
Larimer County
AQI 48
Las Animas County
AQI 19
Lincoln County
AQI 11
Logan County
AQI 7
Mesa County
AQI 50
Mineral County
AQI 5
Moffat County
AQI 7
Montezuma County
AQI 37
Montrose County
AQI 23
Morgan County
AQI 6
Otero County
AQI 33
Ouray County
AQI 17
Park County
AQI 7
Phillips County
AQI 7
Pitkin County
AQI 47
Prowers County
AQI 40
Pueblo County
AQI 33
Rio Blanco County
AQI 7
Rio Grande County
AQI 24
Routt County
AQI 19
Saguache County
AQI 8
San Juan County
AQI 17
San Miguel County
AQI 17
Sedgwick County
AQI 8
Summit County
AQI 8
Teller County
AQI 8
Washington County
AQI 6
Weld County
AQI 46
Yuma County
AQI 7
Data Sources
http://www.airnow.gov/

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