1. North America
  2. United States
  3. Colorado

Colorado

United States

2026-05-29 15:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
80.3
PM10
μg/m³
20.3
PM2.5
μg/m³
5.6
NO2
μg/m³
13.5
CO
μg/m³
270.8
SO2
μg/m³
1.3
Weather
  • ℃
  • ℉
11℃
29%
5 kph
5 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 26
Alamosa County
AQI 18
Arapahoe County
AQI 30
Archuleta County
AQI 27
Baca County
AQI 11
Bent County
AQI 23
Boulder County
AQI 20
Broomfield County
AQI 20
Chaffee County
AQI 5
Cheyenne County
AQI 5
Clear Creek County
AQI 24
Conejos County
AQI 18
Costilla County
AQI 6
Crowley County
AQI 21
Custer County
AQI 8
Delta County
AQI 31
Denver County
AQI 32
Dolores County
AQI 8
Douglas County
AQI 29
Eagle County
AQI 5
El Paso County
AQI 21
Elbert County
AQI 18
Fremont County
AQI 21
Garfield County
AQI 28
Gilpin County
AQI 30
Grand County
AQI 6
Gunnison County
AQI 29
Hinsdale County
AQI 12
Huerfano County
AQI 5
Jackson County
AQI 7
Jefferson County
AQI 22
La Plata County
AQI 25
Lake County
AQI 5
Larimer County
AQI 24
Las Animas County
AQI 7
Lincoln County
AQI 12
Logan County
AQI 5
Mesa County
AQI 43
Mineral County
AQI 6
Moffat County
AQI 9
Montezuma County
AQI 35
Montrose County
AQI 31
Morgan County
AQI 9
Otero County
AQI 23
Ouray County
AQI 20
Park County
AQI 6
Phillips County
AQI 5
Pitkin County
AQI 26
Prowers County
AQI 11
Pueblo County
AQI 20
Rio Blanco County
AQI 8
Rio Grande County
AQI 18
Routt County
AQI 16
Saguache County
AQI 7
San Juan County
AQI 20
San Miguel County
AQI 20
Sedgwick County
AQI 4
Summit County
AQI 6
Teller County
AQI 12
Washington County
AQI 6
Weld County
AQI 18
Yuma County
AQI 5
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 15
Georgetown
AQI 25
Breckenridge
AQI 7
Silverthorne
AQI 6
Frisco
AQI 5
Wildernest
AQI 5
Bailey
AQI 19
Idaho Springs
AQI 24
Copper Mountain
AQI 5
Black Hawk
AQI 30
Winter Park
AQI 15