Historical weather data, all-time temperature records, and monthly climate averages for Colonial Park, PA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5 in Colonial Park runs mild but unpredictable — the average high is 59° with a low around 38°, but this date has seen everything from 83° warmth in 2023 to a bitter 25° in 2002. There's about a 1-in-3 chance of rain today, with a slim 4% shot at snow.
Colonial Park has seen it all over 87 years of records — from a scorching 107° on July 3, 1966 to a bone-chilling -9° on January 22, 1984, a swing of 116 degrees. The wettest single day on record dumped 9.13 inches during June 1972, and February 1983 buried the area under 24 inches of snow in one storm.
Summer is the clear sweet spot, with highs averaging 88° during the third week of July and a comfortable ramp through spring — May already reaches the low 70s. Winters are genuinely cold, with mid-January highs averaging just 37°. If rain is your concern, late May through early June is the wettest stretch of the year, averaging over an inch of precipitation per week.