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Colorado

United States

2026-06-18 23:00
AQI (India)
Moderately polluted
Pollutants|Pollens
O3
μg/m³
149.4
PM10
μg/m³
31.3
NO2
μg/m³
10.6
CO
μg/m³
229.2
PM2.5
μg/m³
4.1
SO2
μg/m³
2.1
Weather
  • ℃
  • ℉
21℃
11%
19 kph
2 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (India)
  • Pollen
  • O3
  • PM10
  • NO2
  • CO
  • PM2.5
  • SO2
Places included
Adams County
AQI 183
Alamosa County
AQI 43
Arapahoe County
AQI 188
Archuleta County
AQI 143
Baca County
AQI 20
Bent County
AQI 37
Boulder County
AQI 187
Broomfield County
AQI 44
Chaffee County
AQI 5
Cheyenne County
AQI 14
Clear Creek County
AQI 172
Conejos County
AQI 26
Costilla County
AQI 8
Crowley County
AQI 33
Custer County
AQI 15
Delta County
AQI 21
Denver County
AQI 209
Dolores County
AQI 3
Douglas County
AQI 252
Eagle County
AQI 5
El Paso County
AQI 119
Elbert County
AQI 91
Fremont County
AQI 41
Garfield County
AQI 190
Gilpin County
AQI 196
Grand County
AQI 3
Gunnison County
AQI 171
Hinsdale County
AQI 13
Huerfano County
AQI 14
Jackson County
AQI 3
Jefferson County
AQI 241
La Plata County
AQI 131
Lake County
AQI 5
Larimer County
AQI 176
Las Animas County
AQI 19
Lincoln County
AQI 14
Logan County
AQI 7
Mesa County
AQI 183
Mineral County
AQI 5
Moffat County
AQI 8
Montezuma County
AQI 125
Montrose County
AQI 23
Morgan County
AQI 6
Otero County
AQI 45
Ouray County
AQI 21
Park County
AQI 6
Phillips County
AQI 7
Pitkin County
AQI 174
Prowers County
AQI 45
Pueblo County
AQI 114
Rio Blanco County
AQI 6
Rio Grande County
AQI 26
Routt County
AQI 22
Saguache County
AQI 8
San Juan County
AQI 21
San Miguel County
AQI 21
Sedgwick County
AQI 8
Summit County
AQI 6
Teller County
AQI 8
Washington County
AQI 7
Weld County
AQI 176
Yuma County
AQI 7
Data Sources
http://www.airnow.gov/

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