PENNSYLVANIA – Philadelphia, Pittsburgh, Allentown and Erie are approaching winter 2026-27 with a historical statewide snowfall average of approximately 23.60 inches annually, based on an average across weather stations rather than any single city. Despite El Niño’s influence on seasonal weather patterns, snowstorms, dangerous cold and travel disruptions remain possible through March 2027.
According to the National Oceanic and Atmospheric Administration (NOAA), its October 15, 2026, seasonal outlook favors above-normal temperatures across Pennsylvania from December through February. Precipitation probabilities vary geographically, with wetter-than-normal conditions favored across eastern Pennsylvania and less definitive signals farther west. These outlooks describe seasonal probabilities, not snowfall totals or individual storms.
What Pennsylvania’s Snowfall History Actually Shows Pennsylvania’s 23.60-inch statewide average masks substantial regional differences…