Bethesda, MD has a humid subtropical climate with hot and humid summers, and mild winters with occasional snowfall. The average high temperature during the summer months is around 85掳F (29掳C) and the average low temperature in winter is around 30掳F (-1掳C). Average annual precipitation is 44 inches (112 cm) and precipitation is evenly distributed throughout the year. Summers are generally sunny, but can be accompanied by frequent thunderstorms. Winters are usually mild, although there can be periods of cold weather with some snowfall.
Bethesda (zip 20816), Maryland gets 44 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Bethesda (zip 20816) averages 16 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 202 sunny days per year in Bethesda (zip 20816). The US average is 205 sunny days.
Bethesda (zip 20816) gets some kind of precipitation, on average, 113 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Weather Highlights
Summer High: the July high is around 88 degrees
Winter Low: the January low is 25
Rain: averages 44 inches of rain a year
Snow: averages 16 inches of snow a year