Basel has an average of 121.4 days of rain or snow per year and on average receives 778 mm (30.6 in) of precipitation. The wettest month is June during which time Basel receives an average of 87 mm (3.4 in) of rain or snow. During this month there is precipitation for an average of 10.9 days. The month with the most days of precipitation is May, with an average of 12.6, but with only 84 mm (3.3 in) of rain or snow. The driest month of the year is February with an average of 49 mm (1.9 in) of precipitation over 9.4 days
