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  3. Colorado

Colorado

United States

2026-06-04 20:00
AQI (US)
Moderate
Pollutants|Pollens
O3
μg/m³
126.5
PM10
μg/m³
32.5
PM2.5
μg/m³
3.9
NO2
μg/m³
7
CO
μg/m³
187.5
SO2
μg/m³
1.5
Weather
  • ℃
  • ℉
17℃
19%
16 kph
6 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 90
Alamosa County
AQI 22
Arapahoe County
AQI 86
Archuleta County
AQI 63
Baca County
AQI 19
Bent County
AQI 24
Boulder County
AQI 76
Broomfield County
AQI 125
Chaffee County
AQI 20
Cheyenne County
AQI 24
Clear Creek County
AQI 58
Conejos County
AQI 22
Costilla County
AQI 15
Crowley County
AQI 25
Custer County
AQI 17
Delta County
AQI 24
Denver County
AQI 79
Dolores County
AQI 14
Douglas County
AQI 72
Eagle County
AQI 22
El Paso County
AQI 63
Elbert County
AQI 37
Fremont County
AQI 17
Garfield County
AQI 51
Gilpin County
AQI 50
Grand County
AQI 22
Gunnison County
AQI 63
Hinsdale County
AQI 17
Huerfano County
AQI 14
Jackson County
AQI 24
Jefferson County
AQI 76
La Plata County
AQI 68
Lake County
AQI 22
Larimer County
AQI 70
Las Animas County
AQI 15
Lincoln County
AQI 26
Logan County
AQI 23
Mesa County
AQI 57
Mineral County
AQI 14
Moffat County
AQI 29
Montezuma County
AQI 61
Montrose County
AQI 24
Morgan County
AQI 26
Otero County
AQI 23
Ouray County
AQI 23
Park County
AQI 21
Phillips County
AQI 23
Pitkin County
AQI 45
Prowers County
AQI 14
Pueblo County
AQI 69
Rio Blanco County
AQI 24
Rio Grande County
AQI 22
Routt County
AQI 26
Saguache County
AQI 18
San Juan County
AQI 23
San Miguel County
AQI 23
Sedgwick County
AQI 24
Summit County
AQI 22
Teller County
AQI 19
Washington County
AQI 24
Weld County
AQI 79
Yuma County
AQI 22
Data Sources
http://www.airnow.gov/

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