Where I live, it rains a lot (over 46 inches since October '15). I don't like riding in the rain. When it rains, it's also cold. Getting to work soaked, freezing, and with a mud stripe that looks like I crapped myself does not do wonders for my mood. I also hate the grit and grime that gets caked all over my bike from riding in the rain. I mind the rain less if it rains on my way home. Plus, the rain makes life a little less safe.