Historical Weather in Denver, CO
At 5,280 feet elevation, Denver's Mile High City climate is unlike any other major US metro. Known for 300 days of sunshine, rapid temperature swings of 40°F+ in a single day, and surprise spring snowstorms, Denver's weather is defined by its proximity to the Rocky Mountain front range.
Part of Colorado weather history · Colorado temperature records
Look Up a Specific Date
Monthly Climate Averages
Historical temperature and precipitation averages for Denver, CO, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.
Denver, CO Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Denver, CO Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Denver, CO Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Growing Season & Frost in Denver, CO
Based on the dates the average overnight low reaches freezing (32°F / 0°C), from 50+ years of NOAA station data.
Denver, CO also averages 12 days a year at or above 90°F.
Hours of Daylight in Denver, CO
Day length across the year at 39.7°N latitude. Computed from solar geometry.
Best Time to Visit Denver, CO
Denver, CO has no months that meet our "pleasant" threshold — every season has tradeoffs.
Denver Temperature Records
- Record High: The hottest temperature ever recorded in Denver, CO is 108°F, set on July 21, 2005.
- Record Low: The coldest temperature ever recorded in Denver, CO is -26°F, set on December 22, 1990.
- Data Coverage: Based on 56 years of data from NOAA weather station: DENVER-STAPLETON.
All-Time Record High
All-Time Record Low
Monthly Temperature Records in Denver
| Month | Record High | Record Low |
|---|---|---|
| January | 77°F(2015) | -23°F(2024) |
| February | 83°F(2017) | -24°F(1989) |
| March | 85°F(2017) | -13°F(2002) |
| April | 91°F(2012) | -8°F(1975) |
| May | 99°F(2003) | 15°F(2010) |
| June | 107°F(2012) | 31°F(2005) |
| July | 108°F(2005) | 43°F(1971) |
| August | 104°F(2002) | 38°F(2014) |
| September | 102°F(2020) | 17°F(1985) |
| October | 90°F(1991) | 0°F(1997) |
| November | 85°F(2025) | -14°F(1993) |
| December | 78°F(2025) | -26°F(1990) |