Columbus, Ohio – A surge of Arctic air late this month could bring a prolonged stretch of bitter cold across Ohio and Pennsylvania, with temperatures expected to plunge well below seasonal averages as January approaches its final days.
According to the National Weather Service Climate Prediction Center, outlooks for January 17 through January 30 strongly favor below-normal temperatures across the eastern Great Lakes and Ohio Valley. The broader pattern supports repeated intrusions of Arctic air, allowing cold conditions to deepen and persist rather than quickly moderating.
In Ohio, the cold air is expected to spread from northwest to southeast, impacting both urban and rural areas. Prolonged exposure could strain heating systems and increase the risk of frozen pipes, particularly during overnight periods. Even in areas that see limited snowfall, icy conditions may develop due to repeated freeze–thaw cycles along major corridors such as I-70, I-71, and I-75.
Across Pennsylvania, colder air is expected to settle in first across western and northern counties before expanding eastward. Communities from Pittsburgh to the central ridges and valleys could face hazardous travel due to overnight refreezing and wind-driven cold. Gusty winds may further intensify wind chill concerns, especially across higher elevations and open terrain.
Officials urge residents across both states to prepare now by checking heating systems, insulating exposed plumbing, and limiting outdoor exposure during the coldest stretches. While snow chances may vary by location, the cold itself could pose the most significant risk late this month.
The Arctic pattern is expected to remain active through the end of January, and additional cold weather advisories or warnings may be issued as confidence increases closer to each surge.
