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Colorado

United States

2026-06-05 03:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
102.2
PM10
μg/m³
30.7
PM2.5
μg/m³
4.9
NO2
μg/m³
12.6
CO
μg/m³
187.5
SO2
μg/m³
1.4
Weather
  • ℃
  • ℉
7℃
48%
4 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 35
Alamosa County
AQI 49
Arapahoe County
AQI 34
Archuleta County
AQI 22
Baca County
AQI 16
Bent County
AQI 57
Boulder County
AQI 39
Broomfield County
AQI 44
Chaffee County
AQI 5
Cheyenne County
AQI 12
Clear Creek County
AQI 34
Conejos County
AQI 49
Costilla County
AQI 6
Crowley County
AQI 37
Custer County
AQI 7
Delta County
AQI 53
Denver County
AQI 34
Dolores County
AQI 5
Douglas County
AQI 33
Eagle County
AQI 10
El Paso County
AQI 28
Elbert County
AQI 22
Fremont County
AQI 22
Garfield County
AQI 20
Gilpin County
AQI 40
Grand County
AQI 7
Gunnison County
AQI 31
Hinsdale County
AQI 13
Huerfano County
AQI 4
Jackson County
AQI 8
Jefferson County
AQI 41
La Plata County
AQI 29
Lake County
AQI 9
Larimer County
AQI 38
Las Animas County
AQI 9
Lincoln County
AQI 10
Logan County
AQI 8
Mesa County
AQI 35
Mineral County
AQI 7
Moffat County
AQI 13
Montezuma County
AQI 32
Montrose County
AQI 53
Morgan County
AQI 8
Otero County
AQI 63
Ouray County
AQI 19
Park County
AQI 7
Phillips County
AQI 8
Pitkin County
AQI 30
Prowers County
AQI 18
Pueblo County
AQI 31
Rio Blanco County
AQI 8
Rio Grande County
AQI 49
Routt County
AQI 17
Saguache County
AQI 8
San Juan County
AQI 19
San Miguel County
AQI 19
Sedgwick County
AQI 7
Summit County
AQI 9
Teller County
AQI 9
Washington County
AQI 9
Weld County
AQI 43
Yuma County
AQI 9
Data Sources
http://www.airnow.gov/

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AQI 34
Breckenridge
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