Bartonsville, MD is located in the state's humid subtropical climate zone. Summers are hot and humid with average high temperatures in the upper 80s and lows in the mid-60s. Winters are mild with average highs in the 40s and lows in the 20s. Rainfall is distributed throughout the year with an annual average of 41.6 inches. Snowfall is relatively light, averaging 10 to 12 inches per season, but can be heavier from time to time.
Bartonsville, Maryland gets 42 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Bartonsville 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 Bartonsville. The US average is 205 sunny days.
Bartonsville 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 23
Rain: averages 42 inches of rain a year
Snow: averages 24 inches of snow a year