Major changes in temperature are rare. Winters are usually mild or at most cool, with an average temperature of 1.5 degrees Celsius in the lowlands and minus 6 degrees Celsius in the mountains. Summer weather is often changeable with a great amount of precipitation. Average July temperatures range around 18 C in the northern lowland plains and 20 C in the sheltered valleys of the south. Winters can be very cold or very mild, just as summers may be very hot and dry or rainy and cold.
Some summer days can be colder than a mild winter afternoon.
Whatever the case, there is precipitation all year round. Time Clocks in Germany run by Central European Time. As in other states in Europe, the clocks are set one hour ahead in summer, during the night from Saturday to Sunday on the last weekend in March. They are set back one hour on the last weekend in October. The Deutsche Mark is Germany's unit of currency.