Climate description of Changchun city

The annual average temperature in Changchun is 4.8℃, the highest temperature is 39.5℃, the lowest temperature is -39.8℃, and the sunshine time is 2688 hours. Southeast winds prevail in summer, and there is moisture supplemented by Bohai Sea. The annual average precipitation is 522 ~ 6 15mm, and the summer precipitation accounts for more than 60% of the annual precipitation. The average temperature in the hottest month (July) is 23℃. Autumn can form sunny and warm weather for several days, with large temperature difference and lower wind speed than spring.