The Urban Climate of Zhengzhou

　　Zhengzhou city warm temperate zone to north subtropical transitional continental monsoon climate.With the changes in temperature is moderate, the four seasons, rain heat over the same period, same characteristics of dry and cold climate.The lack of rain, the spring autumn sunny sunshine long, hot summer and rainy, the longest winter cold and less rain.The annual average temperature is between 14-14.3℃ .Extreme maximum temperature 43.0 ℃ , July 19, 1966, the city;Gongyi, on June 22, 1966), 1951-2013, the most high temperature 40 ℃ or higher number 33 days.Extreme minimum temperature of 19.7 ℃ (on December 27, 1971, ZhongMou), downtown extreme minimum temperature of 17.9 ℃ , January 2, 1955, on December 27, 1971, on February 1, 1990).Zhengzhou, the average annual rainfall 640.9 mm, frostfree period 220 days, about 2400 hours sunshine throughout the year.