Romania's climate is of the moderate humid continental type, exposed to predominant northerly cold winds in the winter and moderate westerly winds from the Atlantic in the summer. Average January temperatures range from -4° C to 0° C (25–32° F ). During the summer, the highest temperatures are recorded in the Danube Valley (24° C /75° F ). Temperatures decrease toward the high elevations in the northwest and toward the southeast, where the Black Sea exerts a moderating influence. Precipitation decreases from west to east and from the mountains to the plains, with an annual average of between 100 and 125 cm (about 40 and 50 in) in the mountains and about 38 cm (15 in) in the delta.