1. North America
  2. United States
  3. Colorado

Colorado

United States

2026-05-30 18:00
AQI (US)
Moderate
Pollutants|Pollens
O3
μg/m³
135.1
PM2.5
μg/m³
2.9
PM10
μg/m³
13.8
CO
μg/m³
187.5
NO2
μg/m³
3.4
SO2
μg/m³
1
Weather
  • ℃
  • ℉
9℃
23%
9 kph
7 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • PM10
  • CO
  • NO2
  • SO2
Places included
Adams County
AQI 88
Alamosa County
AQI 18
Arapahoe County
AQI 86
Archuleta County
AQI 79
Baca County
AQI 23
Bent County
AQI 29
Boulder County
AQI 69
Broomfield County
AQI 22
Chaffee County
AQI 14
Cheyenne County
AQI 21
Clear Creek County
AQI 67
Conejos County
AQI 18
Costilla County
AQI 16
Crowley County
AQI 21
Custer County
AQI 15
Delta County
AQI 16
Denver County
AQI 83
Dolores County
AQI 13
Douglas County
AQI 88
Eagle County
AQI 12
El Paso County
AQI 102
Elbert County
AQI 36
Fremont County
AQI 16
Garfield County
AQI 50
Gilpin County
AQI 91
Grand County
AQI 13
Gunnison County
AQI 79
Hinsdale County
AQI 12
Huerfano County
AQI 15
Jackson County
AQI 13
Jefferson County
AQI 90
La Plata County
AQI 69
Lake County
AQI 13
Larimer County
AQI 75
Las Animas County
AQI 18
Lincoln County
AQI 19
Logan County
AQI 34
Mesa County
AQI 50
Mineral County
AQI 15
Moffat County
AQI 9
Montezuma County
AQI 60
Montrose County
AQI 16
Morgan County
AQI 25
Otero County
AQI 24
Ouray County
AQI 9
Park County
AQI 14
Phillips County
AQI 43
Pitkin County
AQI 54
Prowers County
AQI 18
Pueblo County
AQI 102
Rio Blanco County
AQI 8
Rio Grande County
AQI 18
Routt County
AQI 12
Saguache County
AQI 15
San Juan County
AQI 9
San Miguel County
AQI 9
Sedgwick County
AQI 39
Summit County
AQI 13
Teller County
AQI 18
Washington County
AQI 30
Weld County
AQI 69
Yuma County
AQI 41
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 35
Georgetown
AQI 70
Breckenridge
AQI 13
Silverthorne
AQI 13
Frisco
AQI 13
Wildernest
AQI 13
Bailey
AQI 54
Idaho Springs
AQI 70
Copper Mountain
AQI 13
Black Hawk
AQI 91
Winter Park
AQI 34