Charlestown, MD experiences four distinct seasons throughout the year, with hot summers and cold winters. The average temperature in the summer is around 80 degrees Fahrenheit, while temperatures during winter can dip into the low 20s. There are occasional snow storms but not typically a lot of snow accumulation. Rainfall is moderate in the region, averaging around 44 inches each year. Charlestown has an overall mild climate throughout the year with plenty of sunshine each day to enjoy.
Charlestown, Maryland gets 46 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Charlestown averages 15 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 199 sunny days per year in Charlestown. The US average is 205 sunny days.
Charlestown gets some kind of precipitation, on average, 116 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 23
Rain: averages 46 inches of rain a year
Snow: averages 15 inches of snow a year