Denver (CO) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Denver.
Climate overview of Denver
Denver Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Denver — and find the best time to visit.
Monthly Temperature in Denver
Depending on the time of the year, temperatures range from very warm to chilly in Denver. Average daytime temperatures reach a very warm 31°C (88°F) in July. In December, the coolest month of the year, temperatures drop to a chilly 6°C (43°F).
At night, temperatures range from around 16°C (61°F) in July to -8°C (18°F) in December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Denver
Denver maintains relatively dry conditions year-round, recording average annual precipitation of 452 mm (18 in). Denver can be quite wet during May, receiving approximately 68 mm (2.7 in) of precipitation over 12 rainy days.
In contrast, during the driest month (January), you will experience much drier conditions, with 12 mm (0.5 in) of precipitation spread across 5 snowy/rainy days days. For more details, please visit our Denver Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Denver
Denver can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 10.8 hours of sunshine daily. In contrast, the city experiences much darker days in November, with only 6.5 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Denver by Month
The relative humidity is moderate throughout the year in Denver.
The city experiences its highest humidity in December, reaching 56%. In July, the humidity drops to its lowest level at 46%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Denver
The mean wind speed varies between 4 m/s (8 knots) and 5 m/s (10 knots) throughout the year. It is lowest in January, February, May, June, July, August, September, October, November and December and highest during March and April. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Denver
Rainfall during this time ranges from 36 mm (1.4 in) in October to 68 mm (2.7 in) in May. This means you can expect a mix of sunny days and occasional showers. Planning your next adventure but unsure where to go? Our climate tool suggests perfect locations tailored to your preferred weather conditions. Discover your ideal travel destination with our weather planner.
Frequently asked questions about the climate in Denver
What is the best time to visit Denver?
May, June and September typically offer the most optimal weather in Denver. In contrast, January, February and December tend to have less optimal conditions. Denver has a distinct dry season from October to March.
What temperatures can I expect in Denver?
Daytime highs range from 6°C (43°F) in December to 31°C (88°F) in July. Nighttime lows range from -8°C (18°F) to 16°C (61°F). Temperatures vary considerably through the year.
How much rain does Denver get?
Annual rainfall is around 452 mm (18 in). May is the wettest month with 68 mm (2.7 in), while January is the driest with 12 mm (0.5 in).
How sunny is Denver?
Denver receives around 3,102 hours of sunshine per year. July is the sunniest month with 323 hours, while November is the cloudiest with just 195 hours. Overall, Denver enjoys abundant sunshine.
Denver 3-Day Forecast
Denver (CO) 3-Day Forecast
Denver on the map
Denver is highlighted — select any city to see its climate.
Popular this month
Where to go in July — average daytime high across popular destinations.
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