What is the lowest temperature in winter in kelan county?

Kelan County belongs to Xinzhou City, Shanxi Province, located in the middle of the Loess Plateau in northwest Shanxi, at the northwest foot of Guancen Mountain. The land area of the jurisdiction is 1984 square kilometers, including 780,000 mu of cultivated land, and the county government is located in Lanyi Town. Kelan County has a temperate continental monsoon climate with a cold climate, with an annual average temperature of 6 degrees, a monthly average temperature of-14 degrees, a July average temperature of 19 degrees, an annual average rainfall of 456 mm, and a frost-free period of10 days.