Other facts from our historical weather data: Which is the warmest month in Alonnah? February has an average maximum temperature of 18°C (64°F) and is the warmest month of the year. Which is the coldest month in Alonnah? The coldest month is August with an average maximum temperature of 13°C (55°F). Which is the wettest month in Alonnah? August tops the wettest month list with 82mm (3.2 in) of rainfall. Which is the driest month in Alonnah? January is the driest month with 59mm (2.3 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.