Great Falls, VA has a humid subtropical climate, with warm and humid summers and cool winters. The average summer temperature is around 81°F and the average winter temperature is around 37°F. Precipitation levels are generally higher in the summer months, with an average of 3 inches each month throughout the year. The area enjoys four distinct seasons, making it a great destination to enjoy all that nature has to offer.
Great Falls, Virginia gets 42 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Great Falls averages 22 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 196 sunny days per year in Great Falls. The US average is 205 sunny days.
Great Falls gets some kind of precipitation, on average, 116 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 86 degrees
Winter Low: the January low is 24
Rain: averages 42 inches of rain a year
Snow: averages 22 inches of snow a year