When to do the summer cut

[Kaytlin and Cooper]

I used to live in Vancouver, where it was cool and damp most of the year. I let Coopers fur grow long (6 inches) and last year I did not give her a summer cut (we had about 2 weeks of summer). The year before I did give her a summer cut.

Now we live in northern Ontario. It gets hot here in summer so Cooper will need a summer cut. Its still not too warm here (we even had snow and a frost last week) but I dont want to leave it too late so that her fur wont grow back long again ready for the very cold winter (which she hates).

I know some people have given their doods their summer cuts, but of course temperatures vary around the globe. 

At what temperature do you give your dog their summer cut?

EDIT - do you prefer to cut when your dog is all brushed out and fluffy, or when their fur is in its curls?

[Susan and Sasha]

I cut Sasha down in March...but we have been having temperatures in the 80's here for most of the month!

Of course...living on a lake...she's in the water..".Everytime" she goes outside...

Yes...so...you would want your Doodle a little on the shorter side too!!  Lol...