I won't use treadmills either - they suck!
It really just amounts to personal preference. The coldest temps. I have run in were in the teens. But, of course, it rarely falls below the teens here. Both times I ran the Rocket City Marathon in Huntsville (2005 and 2006), the starting temps. were in the upper teens. I can't say that was enjoyable, but it's far preferable to hot weather.
__________________
26.2!
My Log
|