The geographical environment of Yongjia County

Yongjia has a subtropical monsoon climate with mild seasons and abundant rainfall. Average annual temperature 18.2℃, average annual precipitation 1702.2ml, precipitation days 175.4 days, average annual sunshine 1820.2h, and average annual evaporation 143 1.9.

According to historical records all the year round, the annual average temperature is 18.3℃. The coldest month in a year is June 5438+ 10, with an average monthly temperature of 8. 1℃. July is the hottest, with an average monthly temperature of 28.3℃. The extreme maximum temperature was 42. 1℃, which appeared on July 15, 2003. The extreme minimum temperature was -4.8℃, which appeared on199965438+February 23rd. The average daily temperature in spring passes 10℃. The first day of average warming is in March 18, and the average sunrise is now on February 2. The average frost-free period is 28 1 day, the average first frost day is 65438+February 5, and the average last frost day is February 22. The annual average precipitation 17 18.3mm, the inter-annual difference is particularly significant. 1973 Maximum length is 2592.7mm, 1986 Minimum length1193.6 mm. In a year, the average precipitation in August is the highest, reaching 279.4 mm, followed by June, mainly affected by typhoons and plum rains. 65438+February is the least, only 39.2 mm, followed by 65438+ 10 month. The average annual rainfall days are 175 days. The annual average sunshine 1799 hours, of which July and August are the most, reaching 225.5 hours and 220.0 hours respectively. February and March are the least, with 96.5 hours and 102. 1 hour respectively. The annual average evaporation is 1432mm. The annual average relative humidity is 77%. The main disastrous weather includes rainstorm, hail, drought, typhoon, flood, lightning and strong wind.