Denver air quality · Colorado, United States
Most people won't notice any effects at this level
US AQI 55 (Moderate) in Denver, from 1 AirNow monitoring station. Main pollutant: PM10.
Updated
Pollutants in Denver
- PM2.546AQI
- NO₂28AQI
- Ozone32AQI
- SO₂1AQI
- PM1055AQI
US values are per-pollutant AQI from the highest-reading monitor near Denver (Adams-Birch).
Is it safe outside in Denver right now?
Air quality is acceptable. People who are unusually sensitive to air pollution may feel effects with long or heavy exertion outdoors.
Walking and commuting
Go aheadFine for everyone.
Running and jogging
Take careFine for most; unusually sensitive people should ease the pace.
Cycling
Go aheadFine for everyone.
Children playing outside
Go aheadNo limits for most children.
Older adults and heart or lung conditions
Take careWatch for symptoms such as coughing or breathlessness.
Open windows
Go aheadFine to ventilate.
Mask outdoors
Not neededNot needed.
Air purifier indoors
Not neededOptional.
Based on the US EPA Air Quality Guide, applied to the current US AQI category. If you have symptoms, follow your doctor's advice.
What US AQI 51–100 means for your health →
Denver air quality history
Daily average, 36 days- 46average daily US AQI over 36 days
- 73worst day, 14 September
- 10cleanest day, 5 October
- 0days at Unhealthy or worse
The last 7 days averaged 40, better than the week before (52). 25 of the last 36 days were Good.
Weather in Denver
No active National Weather Service alerts for Denver.
| Day | Forecast | High | Low | Rain |
|---|---|---|---|---|
| Mon 19 | Sunny | 72°F | 46°F | 4% |
| Tue 20 | Sunny | 73°F | 48°F | 5% |
| Wed 21 | Mostly Sunny | 77°F | 54°F | 7% |
| Thu 22 | Mostly Cloudy | 75°F | 55°F | 14% |
| Fri 23 | Mostly Sunny | 75°F | 45°F | 22% |
| Sat 24 | Chance Rain Showers | 61°F | 39°F | 29% |
| Sun 25 | Mostly Sunny | 66°F | 43°F | 9% |
National Weather Service forecast. All US weather alerts →
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Denver air quality: common questions
What is the AQI in Denver right now?
The US AQI in Denver is 55 (Moderate). The main pollutant is PM10.
Is it safe to go outside in Denver today?
Fine for most people. Air quality is acceptable. People who are unusually sensitive to air pollution may feel effects with long or heavy exertion outdoors. For runners: Fine for most; unusually sensitive people should ease the pace.
How has air quality in Denver been recently?
Over the last 36 days with data, Denver averaged US AQI 46. The worst day was 14 September at 73; the cleanest was 5 October at 10. 0 days were at Unhealthy or worse.
Where does Denver's air quality data come from?
From US EPA AirNow, using 1 monitoring station in and around the city. Good Air does not estimate or adjust these readings.
Source: US EPA AirNow. Readings are published by the monitoring agency and may be revised.