Other facts from our historical weather data: Which months have the greatest rainfall in Xiaojin? Most rainfall (rainy season) is seen in June, July and August. Does Xiaojin have a dry season? Yes, the months of January and December are very dry. When is winter in Xiaojin? The coldest season / winter is in the following months: January, February and December. Which is the warmest month in Xiaojin? August has an average maximum temperature of 18°C (64°F) and is the warmest month of the year. Which is the coldest month in Xiaojin? The coldest month is January with an average maximum temperature of -1°C (30°F). Which is the wettest month in Xiaojin? June tops the wettest month list with 171mm (6.7 in) of rainfall. Which is the driest month in Xiaojin? January is the driest month with 12mm (0.5 in) of precipitation. No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.