About Middletown, PA's Climate & Weather History

Middletown, in Pennsylvania, United States, is home to roughly 9,100 people in the Eastern Time Zone at 40.2°N latitude.

In 2025, Middletown recorded an average annual temperature of 54°F. The hottest temperatures reached 96°F in June; the coolest were -0°F in January. Total precipitation for the year was 39 inches, with the wettest month being May. Snowfall for the year totaled approximately 6 inches.