UPenn Weather

Weather and Climate at UPenn

The University of Pennsylvania experiences a humid subtropical climate with four distinct seasons. Here's a breakdown of the weather throughout the year:

• Winter (December to February): Temperatures range from 20°F to 40°F (-6°C to 4°C). Snowfall is common, averaging around 23 inches annually.
• Spring (March to May): Temperatures gradually increase from 30°F to 70°F (-1°C to 21°C). Rainfall is frequent, aiding the blooming of campus flora.
• Summer (June to August): Warm and humid, with temperatures ranging from 60°F to 85°F (16°C to 29°C). Thunderstorms are common.
• Fall (September to November): Temperatures decrease from 70°F to 40°F (21°C to 4°C). The foliage on campus turns vibrant.

Weather impacts UPenn life by affecting commuting, especially during snowy winters, and enhancing outdoor research and campus activities during milder seasons.