1. North America
  2. United States
  3. Colorado

Colorado

United States

2026-09-19 07:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
53.7
PM2.5
μg/m³
2.8
PM10
μg/m³
10.1
NO2
μg/m³
11.2
CO
μg/m³
187.5
SO2
μg/m³
1.1
Weather
  • ℃
  • ℉
5℃
80%
2 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • PM10
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 26
Alamosa County
AQI 13
Arapahoe County
AQI 25
Archuleta County
AQI 19
Baca County
AQI 16
Bent County
AQI 26
Boulder County
AQI 21
Broomfield County
AQI 23
Chaffee County
AQI 10
Cheyenne County
AQI 25
Clear Creek County
AQI 24
Conejos County
AQI 13
Costilla County
AQI 11
Crowley County
AQI 25
Custer County
AQI 11
Delta County
AQI 19
Denver County
AQI 22
Dolores County
AQI 10
Douglas County
AQI 26
Eagle County
AQI 16
El Paso County
AQI 27
Elbert County
AQI 31
Fremont County
AQI 7
Garfield County
AQI 28
Gilpin County
AQI 25
Grand County
AQI 9
Gunnison County
AQI 11
Hinsdale County
AQI 17
Huerfano County
AQI 10
Jackson County
AQI 12
Jefferson County
AQI 25
La Plata County
AQI 21
Lake County
AQI 11
Larimer County
AQI 23
Las Animas County
AQI 12
Lincoln County
AQI 22
Logan County
AQI 18
Mesa County
AQI 31
Mineral County
AQI 13
Moffat County
AQI 12
Montezuma County
AQI 34
Montrose County
AQI 19
Morgan County
AQI 28
Otero County
AQI 25
Ouray County
AQI 19
Park County
AQI 11
Phillips County
AQI 18
Pitkin County
AQI 21
Prowers County
AQI 22
Pueblo County
AQI 32
Rio Blanco County
AQI 13
Rio Grande County
AQI 13
Routt County
AQI 10
Saguache County
AQI 14
San Juan County
AQI 19
San Miguel County
AQI 19
Sedgwick County
AQI 15
Summit County
AQI 12
Teller County
AQI 10
Washington County
AQI 17
Weld County
AQI 22
Yuma County
AQI 21
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 23
Breckenridge
AQI 13
Silverthorne
AQI 12
Frisco
AQI 13
Wildernest
AQI 13
Bailey
AQI 22
Idaho Springs
AQI 26
Copper Mountain
AQI 13
Black Hawk
AQI 25
Winter Park
AQI 14