Pittsburgh Snowfall Totals & Accumulation Averages
This page pulls together information on when, how much and how often Pittsburgh, Pennsylvania has snow.
There are data and descriptions here of how many days it snows and the total amount of snowfall that Pittsburgh usually gets. There are also monthly and yearly counts of the days that the city normally has heavy snowstorms and deep snow accumulated on the ground. Plus there's information on when Pittsburgh can expect the first and last snowfalls of the season.
All the numbers are averages, based on climate data gathered from 1981 to 2010 at the Pittsburgh International Airport.
How Often it Snows in Pittsburgh
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 Pittsburgh's snowfall varies from year to year.
In December, for instance, one in four years totals over 12.1 inches of snow. Another 25 percent of years receive less than 4.7 inches for the month.
Similarly in January, fresh snowfall in the heaviest years amounts to over 15.7 inches, while the lightest years get less than 6.3 inches.
Snow in February ranges from 12 or more inches in heavy snowfall years to under 4.2 inches in light years.
When Pittsburgh Has Its First & Last Snowfalls
Pittsburgh's first snowfall of winter usually arrives in November. Very rarely, it snows in October. Yet for at least one in four years, fresh snow doesn't show up until December.
The last snowfall of the season can happen in March. About half the years in Pittsburgh, though, see April getting at least half an inch of snow.
Pittsburgh is normally free of snow every year from May to September.
How Many Snowstorms Pittsburgh Gets
Most days of snowfall in Pittsburgh result in just a skiff of less than an inch left on the ground. Typically for 13 days a year the amount of new snow totals at least an inch.
Snowstorms of over five inches a day happen on average about once a year. They can show up any time here from December to March. But major blizzards that dump ten inches or more in one day are not at all normal for this city.
How Much Snow Normally Accumulates in Pittsburgh
For almost half of winter days, Pittsburgh has at least an inch of snow on the ground.
Snow mostly accumulates during January and February. Typically, on four days in January and another three in February, the snow covering Pittsburgh gets to five or more inches deep. For two days a year on average, the snow cover amounts to at least ten inches.
National Climatic Data Center. NOAA's 1981-2010 Climate Normals.