1. North America
  2. United States
  3. Colorado

Colorado

United States

2026-06-18 13:00
AQI (US)
Good
Pollutants|Pollens
PM10
μg/m³
38.7
O3
μg/m³
81.5
PM2.5
μg/m³
5.4
NO2
μg/m³
13.1
CO
μg/m³
166.7
SO2
μg/m³
2.1
Weather
  • ℃
  • ℉
12℃
41%
6 kph
4 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM10
  • O3
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 52
Alamosa County
AQI 52
Arapahoe County
AQI 43
Archuleta County
AQI 54
Baca County
AQI 51
Bent County
AQI 29
Boulder County
AQI 35
Broomfield County
AQI 62
Chaffee County
AQI 20
Cheyenne County
AQI 19
Clear Creek County
AQI 32
Conejos County
AQI 52
Costilla County
AQI 33
Crowley County
AQI 23
Custer County
AQI 26
Delta County
AQI 49
Denver County
AQI 32
Dolores County
AQI 18
Douglas County
AQI 40
Eagle County
AQI 16
El Paso County
AQI 40
Elbert County
AQI 25
Fremont County
AQI 25
Garfield County
AQI 45
Gilpin County
AQI 35
Grand County
AQI 24
Gunnison County
AQI 43
Hinsdale County
AQI 21
Huerfano County
AQI 32
Jackson County
AQI 30
Jefferson County
AQI 37
La Plata County
AQI 32
Lake County
AQI 13
Larimer County
AQI 50
Las Animas County
AQI 48
Lincoln County
AQI 18
Logan County
AQI 24
Mesa County
AQI 46
Mineral County
AQI 16
Moffat County
AQI 19
Montezuma County
AQI 36
Montrose County
AQI 49
Morgan County
AQI 17
Otero County
AQI 35
Ouray County
AQI 32
Park County
AQI 19
Phillips County
AQI 25
Pitkin County
AQI 39
Prowers County
AQI 23
Pueblo County
AQI 40
Rio Blanco County
AQI 28
Rio Grande County
AQI 52
Routt County
AQI 23
Saguache County
AQI 23
San Juan County
AQI 32
San Miguel County
AQI 32
Sedgwick County
AQI 23
Summit County
AQI 22
Teller County
AQI 20
Washington County
AQI 21
Weld County
AQI 50
Yuma County
AQI 23
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 23
Georgetown
AQI 33
Breckenridge
AQI 21
Silverthorne
AQI 22
Frisco
AQI 21
Wildernest
AQI 22
Bailey
AQI 29
Idaho Springs
AQI 33
Copper Mountain
AQI 19
Black Hawk
AQI 35
Winter Park
AQI 23