Washington Grove, MD has a humid subtropical climate characterized by hot and humid summers with frequent thunderstorms and mild winters. Average temperatures range from the mid to upper 60s in the summer to the lower 40s in the winter. Precipitation is abundant throughout the year with higher totals during late spring and early summer due to frequent thunderstorms. The area's relative humidity is quite high for much of the year, especially during summer months. Snowfall can be rare but when it does occur, totals are usually low.
Washington Grove, Maryland gets 43 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Washington Grove averages 24 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 197 sunny days per year in Washington Grove. The US average is 205 sunny days.
Washington Grove gets some kind of precipitation, on average, 111 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 85 degrees
Winter Low: the January low is 26
Rain: averages 43 inches of rain a year
Snow: averages 24 inches of snow a year