Climatic characteristics of ganquan town

Ganquan town is located in the southeast of the wheat planting area, on the southern edge of the north temperate zone, and belongs to a typical continental monsoon climate type. Annual average temperature 1 1℃, maximum temperature 38℃, extreme minimum temperature-19.2℃. The annual maximum precipitation is 800 mm, and there is plenty of sunshine. The average annual frost-free period 179 days, the longest is 22 days, and the shortest is 146 days. The winter climate in the town is cold, but not very cold, with scarce rain, dry climate, synchronous rain and heat, and concentrated precipitation. The temperature rises rapidly in spring, starting from the end of February, but the temperature is changeable, and it is often very cold in late spring. In autumn, the temperature drops rapidly, and it begins to cool down in August. In June, the maximum climate drop is 5438+065438+ 10. It often rains all the year round, commonly known as autumn frost. The average sunshine hours are 2032. 1 hour, the average daily sunshine hours are 5.6 hours, the sunshine percentage is 46%, and the solar height varies between 3153 ′-78 45 ′, which shows great differences in solar radiation throughout the year. Being in the monsoon region, the atmospheric circulation has obvious seasonal variation. The main wind direction throughout the year is the east wind, followed by the southeast wind. Judging from the changes between the four seasons' monsoons, there are more southeast winds in the east in spring, summer and autumn, and more northwest winds in winter. The average wind speed 1.3m/s, which is smaller in winter, is 65438+1monthly average1.2m/s. Spring is the season with the highest wind speed in a year, with an average wind speed of1.7m/s; The average wind speed in summer is1.2m/s; The cold wave with an average wind speed of 1.0m/s in autumn mainly occurs in spring and autumn. Among them, spring accounts for 70% of the total, autumn accounts for 22.4%, and winter is a period with less cold waves. The cold wave in spring is mostly concentrated from March 25th to April 15, and the cold wave in autumn is mostly concentrated from late June 10 to late October 10.