Olney, MD has four distinct seasons and a moderately hot humid climate. Summers are usually hot with average temperatures reaching into the mid-80s Fahrenheit. Winters are relatively mild with temperatures typically staying above freezing. Rainfall is moderate throughout the year, with a slight decrease in precipitation during the summer months. During spring and fall, thunderstorms can be common due to the area’s humid climate. Snowfall is also fairly common during winter months, though it is usually short-lived and does not accumulate significantly.
Olney, Maryland gets 43 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Olney averages 16 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 199 sunny days per year in Olney. The US average is 205 sunny days.
Olney 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 87 degrees
Winter Low: the January low is 25
Rain: averages 43 inches of rain a year
Snow: averages 16 inches of snow a year