Blotting Out the Sun Over Springfield

Okay, let’s say that Mr. Burns decides to revive his old idea of blotting out the sun over Springfield, only this time, instead of getting shot by Maggie, he manages to pull it off. What happens to Springfield’s weather? Since there’s no sun, it’s going to get a lot cooler, but how cool? Will there always be snow in Springfield or will the temps be only slightly lower than areas nearby which get sunlight? More rain? Less rain?

Damn. Mods, I didn’t see that my first attempt had gone through and resubmitted. Would one of you be so kind as to kill the extra thread?