Hope you don't mind, but I was looking for a cold-weather pity party, and well, I found yours first!
Here's my recent numbers for my 33 mile trip into work (net +220 ft vertical):
1/13 - 49.5 mpg; temp 40, roads clear, 6
mph headwind, avg speed 58, no heat
1/16 - 44.9 mpg; temp -4, ice-caked roads, 6
mph tailwind, avg speed 40, minimal heater
1/17 - 40.2 mpg; temp 0, roads mostly clear, no wind, avg speed 55, ran the heater the whole way
Oh well, in less than two weeks we hit the bottom of the seasonal temp curve!

Looks like I'll never be a hypermiler, however
