Most people never get to know what it's like to ride a bike on a "perfect" day because they're stuck in their cars. I pity these ones! Even in michigan, which is famous for "bad" weather, we get at least 5 nice days for every crappy one. The thing is, if you have a car, you're in it for the good and the bad days--and the same with a bike--you have to take the bad with the good. That's what life is all about.
If you ride in a snow storm, you have something to brag about and something to whine about. And bragging and whining are two of the funnest things in life!