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.
The first set of monthly snow totals are averages for 2010 to 2019. All the other numbers are averages, based on climate data gathered from 1991 to 2020 at the Pittsburgh International Airport.
How Often it Snows in Pittsburgh
The next two tables list 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 12.4 inches of snow. Another 25 percent of years receive less than 3.1 inches for the month.
Similarly in January, fresh snowfall in the heaviest years amounts to over 18 inches, while the lightest years get less than 7.4 inches.
Snow in February ranges from 14.7 or more inches in heavy snowfall years to under 6.7 inches in light years.
When Pittsburgh Has Its First & Last Snowfalls
Pittsburgh's first snowfall of winter usually arrives in November. But it can start snowing as early as October or hold off until December.
The last snowfall of the season usually happens in April. Less commonly, April receives no new snow, pushing the last snowstorm back to March.
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 15 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 about a third of winter days, Pittsburgh has at least an inch of snow on the ground.
Typically, on eight or nine days a year, the snow covering Pittsburgh amounts to five or more inches deep. For two days of those days on average, the snow cover builds up to at least ten inches.
Jay Lawrimore, Ron Ray, Scott Applequist, Bryant Korzeniewski, Matthew Menne. 2016. Global Summary of the Month and Year, Version 1.0. NOAA National Centers for Environmental Information.
NOAA National Centers for Environmental Information (NCEI). Climate Normals.