Stony Brook Weather

Weather and Climate at Stony Brook

The climate at SUNY Stony Brook University is characterized by a humid subtropical climate with significant seasonal variations. Stony Brook experiences:

• Summer (June to August): Average temperatures range from 65°F to 85°F, with high humidity and occasional heatwaves.
• Fall (September to November): Temperatures cool down, ranging from 50°F to 70°F, with beautiful foliage and occasional rain.
• Winter (December to February): Cold temperatures, ranging from 20°F to 40°F, with occasional snowstorms and freezing rain.
• Spring (March to May): Temperatures rise from 35°F to 65°F, with blooming flowers and increasing rainfall.

Annual precipitation averages around 45 inches, with the wettest months being July and August. Stony Brook's weather can impact commuting, especially during winter storms, and outdoor research activities may be limited during extreme weather conditions.