The Czech Republic has a Central European moderate and transitional climate, with variations resulting from the topography of the country. The climate is temperate with cool summers, and cold, cloudy, and humid winters. The average temperature in Prague ranges from about –1° C (30° F ) in January to 19° C (66° F ) in July. A generally moderate oceanic climate prevails in the Czech lands. Rainfall distribution is greatly influenced by westerly winds, and its variation is closely correlated to relief. Over three-fifths of the rain falls during the spring and summer, which is advantageous for agriculture. The precipitation range is from 50 cm (20 in) to more than 127 cm (50 in); rainfall is below 58 cm (23 in) in western Bohemia and southern Moravia.