Hi, Tigger. We get a few isolated 'warm' spells (low teens) in April. But it doesn't get consistently nice and warm until late May. I guess most of you over there think of Canada as being 'up north'. Obviously most of it is, but where I am is actually further south than most of the UK! Latitude 43 degrees 54 minutes north.
Stewey, I think Southern Canada is very similar to the UK in that it has a temperate climate. We have had a very mild winter this year and sadly I think it is to do with global warming and climate change.