Climate Insights for Denver
Capitol Hill, Colorado, United States
Climate Overview
The climate in Denver is temperate. The average annual temperature is 10°C and approximately 502 mm of precipitation falls per year. May is the wettest month, receiving around 99 mm of rainfall. Denver is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, February, December, when temperatures can drop to -7°C. Snowfall occurs from January to December, with around 167cm accumulating over the season.The climate in Denver is temperate. The average annual temperature is 50°F and approximately 19.8 in of precipitation falls per year. May is the wettest month, receiving around 3.9 in of rainfall. Denver is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, February, December, when temperatures can drop to 20°F. Snowfall occurs from January to December, with around 66in accumulating over the season.
Temperature
Denver has a wide annual temperature range, spanning 39°C from the coldest to warmest months. The warmest month is July, when average highs reach 32°C and the mean temperature sits around 23°C. The coldest month is January, when overnight lows fall to -7°C and the daily average is -2°C. On average, daily temperatures fluctuate by about 15°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 8°C shift in average temperatures.Denver has a wide annual temperature range, spanning 69°F from the coldest to warmest months. The warmest month is July, when average highs reach 89°F and the mean temperature sits around 74°F. The coldest month is January, when overnight lows fall to 20°F and the daily average is 29°F. On average, daily temperatures fluctuate by about 27°F between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 14°F shift in average temperatures.
Precipitation
Denver is a relatively dry area, receiving approximately 502 mm of precipitation annually, which averages out to around 42 mm per month. The wettest month is May, averaging 99 mm of rainfall. March and April also tend to see above-average precipitation. The driest month is December, with just 19 mm. That's 81 mm less than May, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Snowfall is a regular feature from January to December, with around 167cm accumulating over the season. March typically sees the most snow at around 35cm.Denver is a relatively dry area, receiving approximately 19.8 in of precipitation annually, which averages out to around 1.7 in per month. The wettest month is May, averaging 3.9 in of rainfall. March and April also tend to see above-average precipitation. The driest month is December, with just 0.7 in. That's 3.2 in less than May, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Snowfall is a regular feature from January to December, with around 66in accumulating over the season. March typically sees the most snow at around 14in.
Wind
Denver is relatively calm, with an average annual wind speed of 8km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 9km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 8km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.Denver is mildly breezy, with an average annual wind speed of 5mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is April, averaging 6mph, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 5mph, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1mph between the calmest and windiest months.
Best Time to Visit
The best time to visit Denver is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 40 mm per month. By contrast, January can be quite cold with temperatures dropping to -7°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.The best time to visit Denver is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 70°F with modest rainfall averaging 1.6 in per month. By contrast, January can be quite cold with temperatures dropping to 20°F. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.
Monthly Climate Data
The table below shows monthly climate averages for Denver based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.The table below shows monthly climate averages for Denver based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in inches (in) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.