20620 Callaway, MD has a humid subtropical climate with hot summers and mild winters. The average annual temperature is around 63°F (17°C), and the average high temperature in the summer months can reach up to 90°F (32°C). Precipitation is plentiful throughout the year, with an average of 47 inches annually. Winters are mild and relatively snow-free, but temperatures can dip into the 20s Fahrenheit (-6°C) during cold snaps. Humidity levels tend to be high year-round, so it’s important to stay hydrated and seek shade on hot days.
Callaway (zip 20620), Maryland gets 46 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Callaway (zip 20620) averages 14 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 204 sunny days per year in Callaway (zip 20620). The US average is 205 sunny days.
Callaway (zip 20620) gets some kind of precipitation, on average, 112 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 28
Rain: averages 46 inches of rain a year
Snow: averages 14 inches of snow a year