Western Canada
Central Canada
Central Canada is the land of Prairies and a continental climate. Winters can be extremely harsh in cities like Saskatoon and Regina where the average high temperature in January is around -10C. The Central Canadian provinces and cities are always prone to extremes though so temperatures can drop far lower than that, while in the summer it can get very hot. Springtime usually kicks off around May because there can still be snowfall in April.
Eastern Canada
If we take Eastern Canada as being from Ontario right the way to the Atlantic coast we again have some very big differences in climate. In Southern Ontario, along the shores of Lake Ontario it is relatively mild (Canadian-speaking!) in the winter though, being on the lake does have an effect with lake-effect snow, dense fog and very chilly wind chills. Springtime is early May for Toronto.
The North
So there you have it: springtime in Canada, in a nutshell! Basically you’re looking at anything from April to June, depending on where you’re visiting, or no spring at all if you’re heading up north!