When you're planning your getaway to Lake Blatchford, make sure that you take the year-round temperatures into account. The hottest months are usually July and August, with an average temperature of 13°C, while the coldest months are January and February, with an average of -21°C. The snowiest months in Lake Blatchford are November, December, February and January, with each month seeing an average of 29 cm of snowfall.