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  3. Colorado

Colorado

United States

2026-09-15 18:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
7.1
O3
μg/m³
85.2
PM10
μg/m³
28.6
NO2
μg/m³
6.5
CO
μg/m³
250
SO2
μg/m³
1.4
Weather
  • ℃
  • ℉
11℃
69%
12 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • PM10
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 60
Alamosa County
AQI 19
Arapahoe County
AQI 43
Archuleta County
AQI 36
Baca County
AQI 15
Bent County
AQI 20
Boulder County
AQI 57
Broomfield County
AQI 60
Chaffee County
AQI 7
Cheyenne County
AQI 13
Clear Creek County
AQI 37
Conejos County
AQI 19
Costilla County
AQI 12
Crowley County
AQI 18
Custer County
AQI 21
Delta County
AQI 16
Denver County
AQI 61
Dolores County
AQI 11
Douglas County
AQI 53
Eagle County
AQI 8
El Paso County
AQI 48
Elbert County
AQI 26
Fremont County
AQI 39
Garfield County
AQI 28
Gilpin County
AQI 56
Grand County
AQI 6
Gunnison County
AQI 25
Hinsdale County
AQI 15
Huerfano County
AQI 22
Jackson County
AQI 7
Jefferson County
AQI 59
La Plata County
AQI 38
Lake County
AQI 6
Larimer County
AQI 42
Las Animas County
AQI 22
Lincoln County
AQI 12
Logan County
AQI 13
Mesa County
AQI 37
Mineral County
AQI 13
Moffat County
AQI 14
Montezuma County
AQI 38
Montrose County
AQI 16
Morgan County
AQI 14
Otero County
AQI 19
Ouray County
AQI 27
Park County
AQI 17
Phillips County
AQI 11
Pitkin County
AQI 28
Prowers County
AQI 32
Pueblo County
AQI 36
Rio Blanco County
AQI 10
Rio Grande County
AQI 19
Routt County
AQI 19
Saguache County
AQI 14
San Juan County
AQI 27
San Miguel County
AQI 27
Sedgwick County
AQI 11
Summit County
AQI 9
Teller County
AQI 48
Washington County
AQI 12
Weld County
AQI 49
Yuma County
AQI 10
Data Sources
http://www.airnow.gov/

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