Other facts from our historical weather data: Which is the warmest month in Kuhmo? July has an average maximum temperature of 21°C (70°F) and is the warmest month of the year. Which is the coldest month in Kuhmo? The coldest month is February with an average maximum temperature of -6°C (21°F). Which is the wettest month in Kuhmo? July tops the wettest month list with 94mm (3.7 in) of rainfall. Which is the driest month in Kuhmo? April is the driest month with 42mm (1.7 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.