I answered cold..........mostly 'cause I live in Canada and starting in late Oct. it's all we got 'till March/April. I don't like it but I do find it preferrable to sweat dripping off my forehead and getting scorched if I touch the wrong thing.
Like it's already been said, you can always put more clothes on, you can only take so many off before the neighbors are showing way too much interest in what you're doing!
All that aside, if I have the time and "the bug" to find another satellite or do some tweaking, run some wire etc. I'll pretty much do that in any weather...........although the colder it is, the harder it is to put an end on RG-6..........although many moons ago when I was an installer for Star Choice and ExpressVu I came up with some interesting solutions to stiff cable. Seems that the colder it gets, the more people want a dish installed.......bastards!