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  3. Colorado

Colorado

United States

2026-10-04 17:00
AQI (India)
Satisfactory
Pollutants|Pollens
O3
μg/m³
64.1
PM10
μg/m³
23.5
CO
μg/m³
270.8
NO2
μg/m³
10.8
PM2.5
μg/m³
5.2
SO2
μg/m³
1.4
Weather
  • ℃
  • ℉
16℃
20%
11 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (India)
  • Pollen
  • O3
  • PM10
  • CO
  • NO2
  • PM2.5
  • SO2
Places included
Adams County
AQI 37
Alamosa County
AQI 22
Arapahoe County
AQI 75
Archuleta County
AQI 93
Baca County
AQI 4
Bent County
AQI 4
Boulder County
AQI 45
Broomfield County
AQI 34
Chaffee County
AQI 5
Cheyenne County
AQI 3
Clear Creek County
AQI 60
Conejos County
AQI 22
Costilla County
AQI 7
Crowley County
AQI 4
Custer County
AQI 7
Delta County
AQI 17
Denver County
AQI 41
Dolores County
AQI 6
Douglas County
AQI 73
Eagle County
AQI 5
El Paso County
AQI 53
Elbert County
AQI 46
Fremont County
AQI 19
Garfield County
AQI 39
Gilpin County
AQI 73
Grand County
AQI 5
Gunnison County
AQI 108
Hinsdale County
AQI 12
Huerfano County
AQI 6
Jackson County
AQI 5
Jefferson County
AQI 57
La Plata County
AQI 99
Lake County
AQI 5
Larimer County
AQI 65
Las Animas County
AQI 5
Lincoln County
AQI 3
Logan County
AQI 3
Mesa County
AQI 56
Mineral County
AQI 5
Moffat County
AQI 7
Montezuma County
AQI 90
Montrose County
AQI 17
Morgan County
AQI 3
Otero County
AQI 4
Ouray County
AQI 21
Park County
AQI 6
Phillips County
AQI 4
Pitkin County
AQI 67
Prowers County
AQI 14
Pueblo County
AQI 52
Rio Blanco County
AQI 7
Rio Grande County
AQI 22
Routt County
AQI 14
Saguache County
AQI 7
San Juan County
AQI 21
San Miguel County
AQI 21
Sedgwick County
AQI 4
Summit County
AQI 5
Teller County
AQI 8
Washington County
AQI 3
Weld County
AQI 39
Yuma County
AQI 4
Data Sources
http://www.airnow.gov/

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