Ashburn (zip 20147), Virginia gets 42 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Ashburn (zip 20147) averages 22 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 197 sunny days per year in Ashburn (zip 20147). The US average is 205 sunny days.
Ashburn (zip 20147) 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.
Summer High: the July high is around 87 degrees
Winter Low: the January low is 23
Rain: averages 42 inches of rain a year
Snow: averages 22 inches of snow a year
BESTPLACES COMFORT INDEX
The annual BestPlaces Comfort Index for the 20147 zip code is 7.2 (10=best), which means it is less comfortable than most places in Virginia.
7.2 / 10
September, June and May are the most pleasant months in the 20147 zip code, while January and February are the least comfortable months.