Bethesda (MD) Climate by Month
The climate in Bethesda is marked by big temperature swings throughout the year.
Temperatures range from very warm during the warmest months
to cold in the cooler months.
It also has a relatively rain/snowy climate with high levels of precipitation.
Let’s explore the climate details in depth to provide you with a complete overview.
Average day and night temperature
In Bethesda, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a very warm 31°C in July to a chilly 6°C in January. Nighttime temperatures can drop, with averages reaching -4°C in January.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
Bethesda experiences significant rain/snowfall throughout the year, averaging 1181 mm of precipitation annually. The amount of precipitation varies moderately throughout the year. The wettest month, June, sees around 139 mm of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, February, still receives a respectable 68 mm of rainfall.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 Bethesda, 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 Bethesda.
Relative humidity over the year
Average wind speed
The mean wind speed over the year in Bethesda 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 Bethesda in the United States of America
Other facts from our historical weather data:July has an average maximum temperature of 31°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 139 mm of rainfall.
February is the driest month with 68 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.
