Here’s What La Niña Could Mean For Winter Temps, Snowfall In PA

PENNSYLVANIA — A La Niña climate pattern is expected to bring mild temperatures and wet, stormy weather to Pennsylvania this coming winter, according to a new extended forecast.

Overall, The Farmers’ Almanac winter 2025 forecast calls for “a season of rapid-fire storms that will bring both rain and snow, with little downtime in between.”

La Niña, a term that describes the periodic cooling of surface temperatures in the central and eastern equatorial Pacific, is expected to develop and continue to bring wet, cold weather to most of the country throughout winter, which begins with the winter solstice on Dec. 21. Meteorological winter begins Dec. 1.

In Pennsylvania and throughout the Northeast, The Farmer's Almanac predicts a stormy winter — with above-normal amounts of snow, sleet, and rain along with near-to-above-normal temperatures.

"Snow will be most prevalent over the interior and mountainous terrains, while sleet and rain will be more common near the coast, especially near and along the I-95 corridor," their prediction said.

A wet, cold winter for many Americans

The outlook comes with a “red flag” advisory for Jan. 20-27, when forecasters expect an active storm track to deliver frequent bouts of heavy precipitation, as well as strong and gusty winds. That could mean heavy snow, rain, sleet or ice across much of the country, the forecast said.

Also, a snowstorm at the beginning of February could bring at least 6 inches of snow to Texas and double that amount in the Bitterroot Mountain range of Idaho, the forecast said.

Wet conditions are expected to prevail across the eastern third of the country, especially in the Great Lakes, Ohio Valley, Midwest and Pacific Northwest regions. The Southwest and South Central states are on track for a winter with average to below-average precipitation, according to the forecast.

The Northern Plains and Great Lakes regions are expected to experience the coldest temperatures of winter, and areas east of the Rockies and the Appalachians could see periods of cold weather, the forecast said. A blast of frigid Arctic air is expected to plunge temperatures nationwide the final week of January and early February, especially across the Northern Plains. The Great Lakes area could see heavy snow showers and snow squalls, the forecast said.

New England is also expected to be stormy with above-normal precipitation and near-to-above-normal temperatures, and perhaps a bit more snow than the Northeast.

Winter is expected to be on the warm side with above-average temperatures in Texas, the Southern Plains and across the Southeast and Atlantic Coast. The forecast also calls for average winter temperatures in the Southwest and an unseasonably chilly winter in the Pacific Northwest.