We had our first (extremely light, melting) snow of the season here in Chicago today, and I was a little shocked when on a 7 mile drive my average wh/mile read 703!!!?? Temperature was not terrible, around 32F. Wind was light. Rain turning into snow. I had interior temp set at 70F, and I did use the rear defrost to clear snow. I also kept my seat warmer on. None of which should have affected the consumption all that much. I am hoping that my power consumption was an anomaly (some kind of vampire loss getting added in) but this read was FAR higher than my previous high the identical short trip (previous high was 410 wh/mile). This is city driving, with lots of stop and go, so getting upper 300's to 400 wh/mile is not bad (on Lake Shore Drive and on the freeway I usually am well under 300 wh/mile for comparison). But, 703 wh/mile??!! That means less than 1/2 of my usual range will be available. Ugh. So my question is, in this kind of crummy weather, should I expect my range to be 50% of what it was in the summer? Will it get even worse when the temps drop to well below freezing? Or was this just a freak consumption reading? Anyone out there who has had their MS through last winter?