Denver Weather in October

Dry, sunny weather continues into October at Denver, Colorado. The temperatures have cooled down though. Some nights get frost and most Octobers have snow.

This page gives detailed information on the typical October temperature, precipitation, snow, sun, humidity, wind and storms for Denver. The numbers here are historical averages based on climate data gathered in the Denver community of Stapleton.

Temperature Weather iconTemperature

67 °F October average high 19 °C
36 °F October average low 2 °C
14 days 70 °F max. or more (21 °C)
22 days 40 °F min. or less (4 °C)

Nearly every October day warms to over 50 degrees Fahrenheit (10 degrees Celsius) in Denver. The city averages 5 days this month when the thermometer reaches into the 80s °F (over 26 °C). Temperatures above 90 °F (32 °C) are not expected here during October. Sometimes in October the mercury remains below freezing for an entire day.

On an average of 9 nights this month, the thermometer dips to freezing or below. In some years, weather as cold as 10 °F (-12 °C) has descended on Denver in October.

Rainy Weather iconPrecipitation

1.0 in total precipitation 25 mm
5 days of rain or snowfall

Half the time, Denver receives 0.5 to 1.4 inches (12 to 22 mm) of precipitation in October. One in four years has drier weather, while another one in four is wetter.

Snowy Weather iconSnow

3.9 in total snowfall 10 cm
2 days with new snow

Every few years, Denver receives no fresh snow in October. The snowiest twenty-five percent of Octobers get 5.3 inches (13 cm) or more.

Denver typically has at least an inch (2.5 cm) of snow on the ground for 2 days this month.

Sunny Weather iconSun

72 % sunshine
13 days clear skies

The sun's rays reach the ground in Denver during 72 percent of daylight hours on average in October, for a total of 248 hours in the month. Typically on 13 days this month the sky is mainly clear, with at most 30 percent cloud cover.

Sunlight in October at Denver lasts for 11 hours and 7 minutes a day on average. The longest day of the month is the 1st with 11 hours and 45 minutes of daylight. By the end of the month, the days have shortened to 10:31 from sunrise to sunset. These durations can vary by a minute or two from year to year.

Humid Weather iconHumidity

49 % October average humidity

The relative humidity in Denver during October usually peaks at 65 percent in the morning then drops to 30 percent by early afternoon.

Local Time2 am5 am8 am11 am2 pm5 pm8 pm11 pm
Humidity % 62 65 54 36 30 35 52 59

Windy Weather iconWind

7.8 mph October wind speed average 12.6 kph

October is Denver's least windy month.

Stormy Weather iconStorms

1 day snowfall of 1 inch (2.5 cm) or more
1 day with thunderstorms in October

About once a decade, an October snowstorm blankets Denver with ten inches (25 cm) or more of snow in one day.

October gets a thunderstorm in many, but not all, years.


The weather data here are long-term averages provided by the US National Centers for Environmental Information (NCEI). Temperature and precipitation are 1991-2020 normals while humidity and thunderstorms are 1961-1990 normals.

Denver Weather
Back to Top