Climate almanac
Harleysville
Pennsylvania, United States · 40.28°, -75.39°
What is the weather like in Harleysville in May?
In May, Harleysville is typically 73°F (23°C) during the day and 54°F (12°C) at night. The month brings about 5.0 in (126 mm) of precipitation in total.
- Average high73°F (23°C)
- Average low54°F (12°C)
- Precipitation5.0 in (126 mm)
- Clear or mostly clear days6
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)