Corner Brook experiences four distinct seasons. It is warmer in summer than St. John's, whereas winters are colder than St. John's. Corner Brook lies in an especially heavy snow belt.

Spring is not always early to arrive. Temperatures begin to moderate around April. By June warm weather typically makes an appearance but warm weather can be late to arrive depending on what's known locally as "capelin weather" a period of foggy, wet, and sometimes cold weather.

Summers are warm and while precipitation is still prevalent, it is the driest months. High temperatures in July and August average 20 degrees. 

By September the weather starts to cool. Warm ocean water sometimes allows for hurricanes from the tropics to survive and track northward and Newfoundland has been hit by several hurricanes.

From October to December, it becomes increasingly colder and nor'easters are not uncommon in these months, just as snow is not unheard of.