Calvert County, MD has a humid subtropical climate, characterized by hot, humid summers and mild winters. The average annual temperature is 62 degrees Fahrenheit. During the summer months, temperatures can reach up to 90 degrees Fahrenheit with high humidity levels. Winter temperatures average around 45 degrees Fahrenheit and rarely dip below freezing. Precipitation is moderate throughout the year with an average of 35 inches per year. Most of the precipitation occurs in late spring and early summer and snowfall is usually light during the winter months. Overall, Calvert County enjoys a mild climate and temperate weather all year round.
Calvert County, Maryland gets 45 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Calvert County averages 15 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 205 sunny days per year in Calvert County. The US average is 205 sunny days.
Calvert County gets some kind of precipitation, on average, 109 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 87 degrees
Winter Low: the January low is 26
Rain: averages 45 inches of rain a year
Snow: averages 15 inches of snow a year