Washington DC Climate by Month
Washtington D.C. has a warm sea climate. Summers are warm and winters tend to be mild most years. Although in January and february there is a chance of snowfall.
In July and August temperatures are on average around 30°C. From July until December hurricanes sometimes hit the region.
Average day and night temperature
The climate in Washington DC is known for significant temperature differences throughout the year, making the weather dynamic. On average, daytime temperatures range from a very warm 32°C in July to a chilly 7°C in January. Nighttime temperatures can drop, with averages reaching -2°C in January.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
Washington DC has a notably wet climate with abundant precipitation, recording 1047 mm of rain/snowfall per year. The seasons in Washington DC, bring significant changes in precipitation. The wettest month, June, receives high rainfall, with an average of 137 mm of precipitation. This rainfall is distributed across 12 rainy days. In contrast, the driest month, January, experiences much less snow/rainfall, totaling 62 mm over 10 snowy/rainy days. These distinct seasonal differences provide diverse experiences throughout the year.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
In Washington DC, summer days are longer and more sunny, with daily sunshine hours peaking at 9.4 hours in June. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 4.3 hours.Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Average humidity
The relative humidity is low throughout the year in Washington DC.
Relative humidity over the year
Average wind speed
The mean wind speed over the year in Washington DC ranges from 4°C in May to 5°C in January.
The mean monthly wind speed over the year (meters per second)
The best time of year to visit Washington DC in the United States of America
During the months of May and October you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.Other facts from our historical weather data:
July has an average maximum temperature of 32°C and is the warmest month of the year.
The coldest month is January with an average maximum temperature of 7°C.
June tops the wettest month list with 137 mm of rainfall.
January is the driest month with 62 mm of precipitation.
June is the sunniest month with an average of 282 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
