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Colorado

United States

2026-10-03 21:00
AQI (India)
Moderately polluted
Pollutants|Pollens
O3
μg/m³
116.9
PM10
μg/m³
21.9
PM2.5
μg/m³
4.2
CO
μg/m³
125
NO2
μg/m³
3.1
SO2
μg/m³
1.6
Weather
  • ℃
  • ℉
15℃
24%
9 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (India)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • CO
  • NO2
  • SO2
Places included
Adams County
AQI 143
Alamosa County
AQI 9
Arapahoe County
AQI 143
Archuleta County
AQI 97
Baca County
AQI 3
Bent County
AQI 3
Boulder County
AQI 133
Broomfield County
AQI 41
Chaffee County
AQI 6
Cheyenne County
AQI 2
Clear Creek County
AQI 125
Conejos County
AQI 9
Costilla County
AQI 4
Crowley County
AQI 5
Custer County
AQI 4
Delta County
AQI 12
Denver County
AQI 133
Dolores County
AQI 6
Douglas County
AQI 152
Eagle County
AQI 6
El Paso County
AQI 157
Elbert County
AQI 82
Fremont County
AQI 12
Garfield County
AQI 105
Gilpin County
AQI 149
Grand County
AQI 4
Gunnison County
AQI 95
Hinsdale County
AQI 8
Huerfano County
AQI 4
Jackson County
AQI 4
Jefferson County
AQI 166
La Plata County
AQI 114
Lake County
AQI 6
Larimer County
AQI 123
Las Animas County
AQI 2
Lincoln County
AQI 4
Logan County
AQI 6
Mesa County
AQI 120
Mineral County
AQI 4
Moffat County
AQI 7
Montezuma County
AQI 93
Montrose County
AQI 12
Morgan County
AQI 5
Otero County
AQI 4
Ouray County
AQI 16
Park County
AQI 6
Phillips County
AQI 7
Pitkin County
AQI 105
Prowers County
AQI 9
Pueblo County
AQI 117
Rio Blanco County
AQI 6
Rio Grande County
AQI 9
Routt County
AQI 14
Saguache County
AQI 5
San Juan County
AQI 16
San Miguel County
AQI 16
Sedgwick County
AQI 6
Summit County
AQI 5
Teller County
AQI 7
Washington County
AQI 6
Weld County
AQI 120
Yuma County
AQI 6
Data Sources
http://www.airnow.gov/

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