Inner Mongolia belongs to temperate continental and monsoon climate. The annual radiation quantity reaches 115-167 kilocalories. The radiation quantity from April to September, during which plants grow rapidly, constitutes 65 per cent of the year’s total. In this agricultural region, the average temperature is 2℃ to 8℃ . Frost-free period is 100 to 165 days. Annual Inner Mongolia has extreme weather. The best time to visit this northern province is summer that begins from June to September. Winter (from December to April) is long and cold. Accompanied with blizzards, the temperature often dips below the freezing point at night. Even though the weather in summer (from June August) is more pleasant, the difference of the temperature between days and nights can be drastic. Warm clothing is necessary when you visit this region.