Jinan lies between a humid subtropical and humid continental climate (Köppen Cwa/Dwa) but favoring the former, with four well-defined seasons. The city is dry and nearly rainless in spring, hot and rainy in summer, crisp in autumn and dry and cold (with little snow) in winter. The average annual temperature is 14.6 °C (58.3 °F), and the annual precipitation is around slightly above 670 millimetres (26.4 in), with a strong summer maximum, and high variability from year to year. January is the coldest and driest month, with a mean temperature of −0.4 °C (31.3 °F) and 5.7 millimetres (0.22 in) of equivalent rainfall. July is the hottest and wettest month, the corresponding numbers are 27.5 °C (81.5 °F), and 201.3 mm (7.93 in).
Due to the mountains to the south of the city, temperature Inversions are common occurrences, occurring on about 200 days per year
