Other facts from our historical weather data: Which is the warmest month in Cochrane? February has an average maximum temperature of 17°C (63°F) and is the warmest month of the year. Which is the coldest month in Cochrane? The coldest month is July with an average maximum temperature of 3°C (37°F). Which is the wettest month in Cochrane? June tops the wettest month list with 195mm (7.7 in) of rainfall. Which is the driest month in Cochrane? February is the driest month with 128mm (5 in) of precipitation. Which is the sunniest month in Cochrane? July is the sunniest month with an average of 141 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.