21810 Allen, MD generally experiences a humid subtropical climate with mild winters and hot summers. The average temperature during the summer months ranges from 71 to 83 degrees Fahrenheit, while in the winter months, temperatures range from an average low of 32 to an average high of 50 degrees Fahrenheit. Precipitation is evenly distributed throughout the year, with occasional heavy rains or thunderstorms in summer months. Snowfall is not common in this part of Maryland but can occur occasionally during the winter months.
Allen (zip 21810), Maryland gets 46 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Allen (zip 21810) averages 6 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 208 sunny days per year in Allen (zip 21810). The US average is 205 sunny days.
Allen (zip 21810) gets some kind of precipitation, on average, 107 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 27
Rain: averages 46 inches of rain a year
Snow: averages 6 inches of snow a year