Historical weather data, all-time temperature records, and monthly climate averages for Reading, PA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Reading lands right in that classic spring transition zone — expect something close to 60° for a high and 40° overnight. The date has swung wildly before, from a balmy 78° back in 1950 to a frigid 25° low as recently as 2013. There's about a 1-in-3 chance of rain, but snow is effectively off the table.
Reading plays it extreme when it wants to — the thermometer has reached 106° in July 2011 and bottomed out at -7° just this past January 2025, a span of 113 degrees between all-time records. A single October storm in 2005 dumped 6.75 inches of rain, and the January 2016 blizzard buried the city under 24.6 inches of snow in one day.
Summer is the main event here, with late July averaging 88° highs and the wettest stretch of the year falling in early-to-mid July. If you're avoiding heat and humidity, aim for May (74°) or September (78°) — warm but manageable. Winters are genuinely cold, with mid-January highs barely clearing 36° and real snow on the table.