San Bernardino Weather in March

March in San Bernardino brings low temperatures around 3°C (37°F) during the day, dropping to -6°C (21°F) at night, with quite a bit of snow/rainfall expected, averaging around 94 mm (3.7 in) for the month.

Rainfall in San Bernardino in March

Snow/rain is expected on roughly 17 days, totalling around 94 mm (3.7 in) for the month. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.

Temperature in San Bernardino in March

Temperatures in San Bernardino in March top out at 3°C (37°F) and drop to -6°C (21°F) overnight. Even daytime conditions remain cold, making layers, a warm coat, and winter accessories a good idea. At -6°C (21°F) overnight, frost and ice are likely outside. Indoors, consider packing an extra blanket if you're unsure about the heating. Known for its cold temperatures, this month requires warm clothing. Ensure you dress appropriately to stay comfortable.

Sunshine in San Bernardino in March

The month brings about 138 hours of sunlight, offering a comfortable mix of sun and overcast.

If you prefer dry days with pleasant temperatures, March may not be the ideal month to visit San Bernardino. Our weather planner can help you explore destinations with more pleasant weather conditions.