When it's snowing, you can't mow the lawn or paint the house... It's Saturday morning, so football isn't a good excuse yet..
So you're either left with house cleaning or brewing.... Kind of a no brainer..
When it's snowing, I like to throw on some warm clothes, fire up some coals on the weber, pour a cold one while I BBQ a steak and watch it fall.... Crank some tunes to top it off...
No reason you can't brew.. unless it's so windy the flame is no good... But surely you guys can find some sort of shelter from the wind if that's the case (ie garage)...
I usually brew indoors in the utility room.. that's where the easiest hose hookups are, and the room is made for spills and what not.. I open the windows and door and let 'r rip.. Doesn't matter how cold.. In such a small place, that burner usually has me down to a tee shirt in no time...
Or were you just feeling lazy and looking for reasons not to brew from the get go? In that case, just say so...