I had a lot of trouble last winter, getting used to dressing for running as opposed to cycling. I was always too hot, until I sort of got the hang of it. Problem is, I hate being cold for the first part of a run. I get chilled.
On Wednesday, I saw the high school x country team training on my street. They were almost all wearing shorts, some wore singlets, a few had had gloves and long sleeved shirts on. It was about 43 out and cloudy and windy.
I absolutely would have hypothermia. It has to be 70 before I can wear sleeveless!