Other facts from our historical weather data: Does Churchil have a dry season? Yes, the months of January and February are very dry. Which is the warmest month in Churchil? August has an average maximum temperature of 15°C (59°F) and is the warmest month of the year. Which is the coldest month in Churchil? The coldest month is January with an average maximum temperature of -21°C (-6°F). Which is the wettest month in Churchil? August tops the wettest month list with 89mm (3.5 in) of rainfall. Which is the driest month in Churchil? February is the driest month with 18mm (0.7 in) of precipitation. Which is the sunniest month in Churchil? July is the sunniest month with an average of 283 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.