IU Weather

Weather and Climate at IU

Indiana University Bloomington experiences a humid continental climate with distinct seasonal variations.

• Winter (December to February): Temperatures range from 20°F to 40°F (-6°C to 4°C), with occasional snowfalls.
• Spring (March to May): Temperatures rise from 35°F to 70°F (2°C to 21°C), with increasing rainfall.
• Summer (June to August): Warm to hot, with temperatures between 60°F and 85°F (16°C to 29°C), and high humidity.
• Fall (September to November): Cooling temperatures from 70°F to 40°F (21°C to 4°C), with vibrant foliage.

The weather can impact commuting due to occasional snow in winter, and campus life thrives in the milder spring and fall. Outdoor research activities are more feasible in the warmer months.