Like Walter, my tolerance for extreme weather has changed as I have gotten older.
But, yesterday here in central MN was at 29 degrees and sunny, and I had a new Accurate 43-240H that was crying to be broken in.
My casting area is in the unheated shed with the garage door open and I was on the shady side, so it did get a little cool. I use a thick rubber mat on the concrete floor and dress warmly, so it wasn’t too bad.
I prefer temps in the 40’s to 50’s for comfortable casting.
When I was starting out in 1970 in south Texas, I partnered up with a neighbor and we did our casting in his double garage with doors open and an occasional slight breeze to cool us off. We both were novice casters and I remember leaning over the pot, ladle in hand, with sweat dripping off my nose. Neither of us had ever heard of the Tinsel Fairy, and only the benevolence of a Kind Providence protected us from meeting her.