1. North America
  2. United States
  3. Colorado

Colorado

United States

2026-05-30 19:00
AQI (US)
Moderate
Pollutants|Pollens
O3
μg/m³
136.4
PM2.5
μg/m³
2.8
PM10
μg/m³
14.6
NO2
μg/m³
4.6
CO
μg/m³
229.2
SO2
μg/m³
1.1
Weather
  • ℃
  • ℉
7℃
33%
23 kph
5 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • PM10
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 94
Alamosa County
AQI 18
Arapahoe County
AQI 96
Archuleta County
AQI 79
Baca County
AQI 22
Bent County
AQI 27
Boulder County
AQI 88
Broomfield County
AQI 21
Chaffee County
AQI 13
Cheyenne County
AQI 20
Clear Creek County
AQI 74
Conejos County
AQI 18
Costilla County
AQI 15
Crowley County
AQI 21
Custer County
AQI 14
Delta County
AQI 15
Denver County
AQI 83
Dolores County
AQI 12
Douglas County
AQI 94
Eagle County
AQI 10
El Paso County
AQI 101
Elbert County
AQI 39
Fremont County
AQI 15
Garfield County
AQI 54
Gilpin County
AQI 72
Grand County
AQI 11
Gunnison County
AQI 69
Hinsdale County
AQI 11
Huerfano County
AQI 15
Jackson County
AQI 12
Jefferson County
AQI 88
La Plata County
AQI 69
Lake County
AQI 11
Larimer County
AQI 81
Las Animas County
AQI 17
Lincoln County
AQI 18
Logan County
AQI 34
Mesa County
AQI 60
Mineral County
AQI 14
Moffat County
AQI 10
Montezuma County
AQI 63
Montrose County
AQI 15
Morgan County
AQI 25
Otero County
AQI 24
Ouray County
AQI 10
Park County
AQI 13
Phillips County
AQI 40
Pitkin County
AQI 52
Prowers County
AQI 19
Pueblo County
AQI 102
Rio Blanco County
AQI 8
Rio Grande County
AQI 18
Routt County
AQI 11
Saguache County
AQI 15
San Juan County
AQI 10
San Miguel County
AQI 10
Sedgwick County
AQI 37
Summit County
AQI 12
Teller County
AQI 18
Washington County
AQI 28
Weld County
AQI 68
Yuma County
AQI 37
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 77
Breckenridge
AQI 12
Silverthorne
AQI 12
Frisco
AQI 12
Wildernest
AQI 11
Bailey
AQI 65
Idaho Springs
AQI 79
Copper Mountain
AQI 11
Black Hawk
AQI 72
Winter Park
AQI 35