Washington (DC) Climate by Month
The temperature in Washington can vary quite a bit throughout the year.
Temperatures can be very warm during the warmest months,
and cold during the cooler months.
It also has a notably wet climate with much precipitation.
Now, let’s explore all the climate details to give you a full picture.
Average day and night temperature
Visitors to Washington can expect significant temperature changes throughout the year. Average daytime temperatures range from a very warm 32°C in July, the warmest time of the year, to a chilly 6°C during cooler months like January. At night, temperatures typically average around -3°C during these months.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
Washington is known for its substantial rain/snowfall, with annual precipitation reaching 1093 mm. While rainfall varies throughout the year, each season offers its own charm. June brings wetter days averaging 138 mm of precipitation, spread over 12 rainy days. In contrast, February experiences a drier climate, with about 65 mm of rainfall spread across 10 rainy days.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
Seasonal changes in sunshine hours are quite dramatic in Washington. While June receives considerable daily sunshine with up to 9.4 hours, December marks the darkest time of the year, where sunshine is scarce with only 4.3 hours of sunlight per day.Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Average humidity
The relative humidity is low throughout the year in Washington.
Relative humidity over the year
Average wind speed
The mean wind speed over the year in Washington 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 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 6°C.
June tops the wettest month list with 138 mm of rainfall.
February is the driest month with 65 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.
