Generally true that easterners are pansies, myself included although there are some exceptions. Also agree with Double, get out there and wear the right stuff and your fine as long as the boys don’t freeze (different ballgame). I’d take the cold over the heat anyday but live for 50, sunshine on a cushie trail.
During the week I’ve been training in Central Park in NYC which gives you a pretty good random sample. You think runners are pansies, you should see the bike riders. These guys vanish in the cold. There are also lunitics out there. I’m surprized at the number of runners I see wearing shorts regardless of the temp.