Canada is home to the metric system. Our temperatures are rated using the Celsius temperature scale. The freezing point is 0C which is the same as 32F.
Winter, which is generally from December until the end of February experiences average temperatures of -11C or 10F.
The renewal of spring in Calgary can often be felt starting in the beginning of March and continuing through May with temperatures averaging 9C or 42F. For up to date weather reports, check out the Environment Canada website.