Hahah it’s Celsius, Canada loves blending everything, so not surprised they didn’t make their own or just ripped the usda, but I think the usda covers Canada in the maps I was looking at.
Most crops can make the season if you start early, but gourds are nigh but silly without a hothouse. Definitely thinking of making one or atleast a greenhouse to start earlier.
Also, it may snow 2 feet on May 24, so whatever you use better hold that if you’re foolish enough to plant early.