Southeastern Pennsylvania's climate is temperate. Summers are generally humid, with temperatures in July averaging 83 degrees (F) for a high and 60 degrees for a low. Occasional high temperatures reach the mid-90s with showers and thunderstorms commonly occurring during spring and summer months.
Winters can be cold, with temperatures in January averaging 38 degrees (F) for a high and 20 degrees for a low. Temperatures occasionally reach as low as the single digits.
Did You Know?
Charcoal was the fuel used to fire early iron furnaces like Hopewell. Entered along with iron ore and limestone, the burning charcoal inside the furnace produced temperatures as high as 3000 degrees. The resulting hot metal would be fluid enough to pour into sand molds to make "cast iron" products.