1. North America
  2. United States
  3. Colorado

Colorado

United States

2026-06-01 00:00
AQI (US)
Moderate
Pollutants|Pollens
O3
μg/m³
132.4
PM2.5
μg/m³
3.2
PM10
μg/m³
12.4
CO
μg/m³
145.8
NO2
μg/m³
2.5
SO2
μg/m³
0.9
Weather
  • ℃
  • ℉
13℃
24%
16 kph
2 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • PM10
  • CO
  • NO2
  • SO2
Places included
Adams County
AQI 79
Alamosa County
AQI 23
Arapahoe County
AQI 83
Archuleta County
AQI 100
Baca County
AQI 29
Bent County
AQI 36
Boulder County
AQI 54
Broomfield County
AQI 15
Chaffee County
AQI 21
Cheyenne County
AQI 34
Clear Creek County
AQI 67
Conejos County
AQI 23
Costilla County
AQI 24
Crowley County
AQI 36
Custer County
AQI 25
Delta County
AQI 15
Denver County
AQI 76
Dolores County
AQI 23
Douglas County
AQI 72
Eagle County
AQI 16
El Paso County
AQI 72
Elbert County
AQI 39
Fremont County
AQI 17
Garfield County
AQI 69
Gilpin County
AQI 69
Grand County
AQI 15
Gunnison County
AQI 79
Hinsdale County
AQI 22
Huerfano County
AQI 23
Jackson County
AQI 15
Jefferson County
AQI 88
La Plata County
AQI 82
Lake County
AQI 17
Larimer County
AQI 60
Las Animas County
AQI 25
Lincoln County
AQI 35
Logan County
AQI 24
Mesa County
AQI 72
Mineral County
AQI 23
Moffat County
AQI 17
Montezuma County
AQI 68
Montrose County
AQI 15
Morgan County
AQI 31
Otero County
AQI 34
Ouray County
AQI 18
Park County
AQI 21
Phillips County
AQI 32
Pitkin County
AQI 56
Prowers County
AQI 15
Pueblo County
AQI 72
Rio Blanco County
AQI 18
Rio Grande County
AQI 23
Routt County
AQI 15
Saguache County
AQI 25
San Juan County
AQI 18
San Miguel County
AQI 18
Sedgwick County
AQI 25
Summit County
AQI 16
Teller County
AQI 19
Washington County
AQI 39
Weld County
AQI 76
Yuma County
AQI 38
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 36
Georgetown
AQI 75
Breckenridge
AQI 16
Silverthorne
AQI 16
Frisco
AQI 16
Wildernest
AQI 16
Bailey
AQI 62
Idaho Springs
AQI 64
Copper Mountain
AQI 16
Black Hawk
AQI 69
Winter Park
AQI 35