Historical weather data, all-time temperature records, and monthly climate averages for Columbia, PA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Columbia lands right in the heart of that unpredictable spring swing — the average high is 60° but this date has seen everything from 83° (1963) to a brutal 19° low as recently as 2013. There's a coin-flip chance of rain today, though snow is essentially off the table.
Columbia's weather has real range — 102° on July 4th, 1966 sits at one extreme, and -24° on January 21st, 1994 sits at the other, a 126-degree spread that tells you this is no mild mid-Atlantic town. A single June day in 1972 dumped 7.74 inches of rain, and a February 2010 snowstorm buried the area under 26 inches.
Summer is the main event here, with highs peaking around 86-87° in mid-July and the wettest stretch of the year arriving right on summer's heels in late July. Winter is cold but brief in its extremes — January highs average just 36-38° before the slow climb back begins in March. If you're planning a visit, May through September offers the warmest window, though late summer brings the heaviest rain.