Other facts from our historical weather data: Which is the warmest month in Dunhuang? July has an average maximum temperature of 35°C (95°F) and is the warmest month of the year. Which is the coldest month in Dunhuang? The coldest month is January with an average maximum temperature of 0°C (32°F). Which is the wettest month in Dunhuang? June tops the wettest month list with 11mm (0.4 in) of rainfall. Which is the driest month in Dunhuang? October is the driest month with 1mm (0 in) of precipitation. Which is the sunniest month in Dunhuang? May is the sunniest month with an average of 320 hours of sunshine. 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.