Eh, more like May, and even then that's no guarantee. iirc, the West end of NoDak is at a higher elevation, similar to Minnesota East of the Red, snow storms in mid-May aren't unheard of. I drove through one or two when travelling around the Detroit Lakes area. Which reminds me, if you get the chance, that area of MN is fun to visit both during the Summer and Winter. They rent out snowmobiles and you can run motorcycles on the trails, which as one local described to me "you can take a different trail every day and not cover the same ground in the same season." Detroit Lakes is also conveniently located "near" the head waters of the Mississippi, which I understand is also great country for a ride. Just take I94 to Fargo, hop onto US10 and ride East, can't miss it. Park Rapids is also another great area, which is "nearby" DL.