1. North America
  2. United States
  3. Colorado

Colorado

United States

2026-05-29 13:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
70.9
PM10
μg/m³
19.9
PM2.5
μg/m³
5.6
NO2
μg/m³
14.5
CO
μg/m³
270.8
SO2
μg/m³
1.1
Weather
  • ℃
  • ℉
5℃
71%
5 kph
1 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 24
Alamosa County
AQI 12
Arapahoe County
AQI 29
Archuleta County
AQI 40
Baca County
AQI 8
Bent County
AQI 21
Boulder County
AQI 19
Broomfield County
AQI 25
Chaffee County
AQI 5
Cheyenne County
AQI 7
Clear Creek County
AQI 21
Conejos County
AQI 12
Costilla County
AQI 5
Crowley County
AQI 23
Custer County
AQI 8
Delta County
AQI 27
Denver County
AQI 21
Dolores County
AQI 8
Douglas County
AQI 28
Eagle County
AQI 4
El Paso County
AQI 21
Elbert County
AQI 18
Fremont County
AQI 18
Garfield County
AQI 23
Gilpin County
AQI 26
Grand County
AQI 6
Gunnison County
AQI 24
Hinsdale County
AQI 12
Huerfano County
AQI 6
Jackson County
AQI 7
Jefferson County
AQI 18
La Plata County
AQI 20
Lake County
AQI 5
Larimer County
AQI 23
Las Animas County
AQI 5
Lincoln County
AQI 10
Logan County
AQI 6
Mesa County
AQI 37
Mineral County
AQI 5
Moffat County
AQI 6
Montezuma County
AQI 29
Montrose County
AQI 27
Morgan County
AQI 7
Otero County
AQI 23
Ouray County
AQI 35
Park County
AQI 8
Phillips County
AQI 7
Pitkin County
AQI 25
Prowers County
AQI 10
Pueblo County
AQI 17
Rio Blanco County
AQI 7
Rio Grande County
AQI 12
Routt County
AQI 17
Saguache County
AQI 6
San Juan County
AQI 35
San Miguel County
AQI 35
Sedgwick County
AQI 6
Summit County
AQI 7
Teller County
AQI 12
Washington County
AQI 6
Weld County
AQI 15
Yuma County
AQI 6
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 14
Georgetown
AQI 22
Breckenridge
AQI 7
Silverthorne
AQI 7
Frisco
AQI 6
Wildernest
AQI 6
Bailey
AQI 16
Idaho Springs
AQI 19
Copper Mountain
AQI 6
Black Hawk
AQI 26
Winter Park
AQI 13