Harrisburg Snowfall Totals & Snowstorm Averages
This page pulls together information on when, how much and how often Harrisburg, Pennsylvania has snow.
There are data and descriptions of how many days it snows and the total amount of snowfall that Harrisburg usually gets. There are also monthly and yearly counts of the days that the city normally has heavy snowstorms. Plus there's information on when Harrisburg can expect the first and last snowfalls of winter.
All the numbers are averages, based on weather data gathered from 1991 to 2020 at Harrisburg's Capitol City Airport.
How Often it Snows in Harrisburg
This first table lists monthly and yearly totals for amount of snow and how many days it snows at least 0.1 inches (0.25 centimetres).
These averages don't show how much the snowfall in Harrisburg varies from year to year.
In December, for instance, one in four years totals over 7.6 inches of snow. Another 25 percent of years receive no snow for the month.
Similarly in January, fresh snowfall in the heaviest years amounts to over 8.1 inches, while the lightest years get less than 1.8 inches.
New snow for February ranges from over 8.9 inches in heavy snowfall years to under 3.1 inches in light years.
When Harrisburg Has Its First & Last Snowfalls
The first snowfall of winter for Harrisburg usually arrives in December. Less commonly, snow can show up as early as November, or hold off until January.
The last snowfall can happen anytime from February to April, but most often occurs in March.
Harrisburg is normally free of snow every year from May to October.
How Many Snowstorms Harrisburg Gets
For seven days a year on average, the amount of new snow landing on Harrisburg totals at least an inch.
Snowstorms of over five inches a day normally occur once or twice a year. But major blizzards that dump ten inches or more in one day are rare events that only happen an average of once every five years.
How Much Snow Normally Accumulates in Harrisburg
For a small portion of winter days, Harrisburg has at least an inch of snow on the ground. Typically, on two or three days a year the snow covering Harrisburg builds up to ten or more inches deep.
NOAA National Centers for Environmental Information (NCEI). Climate Normals.