Other facts from our historical weather data: Which is the warmest month in Riksgränsen? July has an average maximum temperature of 15°C (59°F) and is the warmest month of the year. Which is the coldest month in Riksgränsen? The coldest month is February with an average maximum temperature of -6°C (21°F). Which is the wettest month in Riksgränsen? September tops the wettest month list with 137mm (5.4 in) of rainfall. Which is the driest month in Riksgränsen? April is the driest month with 85mm (3.3 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.