CSUSB Weather

Weather and Climate at CSUSB

The climate at California State University, San Bernardino is characterized by hot, dry summers and mild, wet winters. CSUSB experiences:

• Temperature: Summer highs often exceed 90°F (32°C), while winter lows can drop to around 40°F (4°C).
• Rainfall: Most precipitation occurs from November to March, with an annual average of about 16 inches.
• Extreme Weather: Occasional heatwaves in summer and rare instances of snow in higher elevations during winter.
• Impact on Campus Life: The warm climate encourages outdoor activities, but extreme heat can affect commuting and outdoor research during peak summer months.