Mobile enjoys a mild subtropical climate, which means the summers are hot and humid, while the winters are mild and rainy. The average temperatures in the long summers, between May and September, range between 63°F (17°C) and 91°F (33°C). The average temperatures in winter, between December and February, range between 40°F (4°C) and 64°F (18°C). Mobile is a very rainy city, with an average of 59 rainy days a year and occasional tropical storms and hurricanes.