1. North America
  2. United States
  3. Colorado

Colorado

United States

2026-06-01 20:00
AQI (US)
Moderate
Pollutants|Pollens
O3
μg/m³
128.7
PM2.5
μg/m³
4
PM10
μg/m³
19.7
NO2
μg/m³
7.9
CO
μg/m³
208.3
SO2
μg/m³
1.1
Weather
  • ℃
  • ℉
12℃
49%
14 kph
6 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • PM10
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 54
Alamosa County
AQI 21
Arapahoe County
AQI 61
Archuleta County
AQI 88
Baca County
AQI 34
Bent County
AQI 39
Boulder County
AQI 63
Broomfield County
AQI 26
Chaffee County
AQI 13
Cheyenne County
AQI 41
Clear Creek County
AQI 66
Conejos County
AQI 21
Costilla County
AQI 14
Crowley County
AQI 41
Custer County
AQI 21
Delta County
AQI 19
Denver County
AQI 49
Dolores County
AQI 14
Douglas County
AQI 69
Eagle County
AQI 17
El Paso County
AQI 58
Elbert County
AQI 36
Fremont County
AQI 29
Garfield County
AQI 69
Gilpin County
AQI 63
Grand County
AQI 17
Gunnison County
AQI 66
Hinsdale County
AQI 16
Huerfano County
AQI 19
Jackson County
AQI 22
Jefferson County
AQI 93
La Plata County
AQI 83
Lake County
AQI 13
Larimer County
AQI 78
Las Animas County
AQI 16
Lincoln County
AQI 34
Logan County
AQI 26
Mesa County
AQI 69
Mineral County
AQI 13
Moffat County
AQI 39
Montezuma County
AQI 65
Montrose County
AQI 19
Morgan County
AQI 33
Otero County
AQI 42
Ouray County
AQI 19
Park County
AQI 16
Phillips County
AQI 26
Pitkin County
AQI 50
Prowers County
AQI 44
Pueblo County
AQI 82
Rio Blanco County
AQI 24
Rio Grande County
AQI 21
Routt County
AQI 18
Saguache County
AQI 15
San Juan County
AQI 19
San Miguel County
AQI 19
Sedgwick County
AQI 24
Summit County
AQI 16
Teller County
AQI 34
Washington County
AQI 30
Weld County
AQI 74
Yuma County
AQI 31
Data Sources
http://www.airnow.gov/

Get the App

Scan QR Code
Air Matters
Realtime broadcasting air quality information on your phone for more than 180 countries.

iPhone, iPad

Android

Cities Nearby

Keystone
AQI 34
Georgetown
AQI 70
Breckenridge
AQI 17
Silverthorne
AQI 16
Frisco
AQI 16
Wildernest
AQI 16
Bailey
AQI 68
Idaho Springs
AQI 70
Copper Mountain
AQI 15
Black Hawk
AQI 63
Winter Park
AQI 34