A tale of two trips

Trip 1
Dates covered: Oct 1st - Dec 25th, 2007
Mileage: 5000-7800
Consumption: 51.9 mpg
Trips:
50-65mph for 1500 miles
0-50mph for 1300 miles
Notes:
Significant drop in consumption efficiency with colder temperatures. October mpg was about 57mpg and had been declining every since.

Trip 2
Dates covered: December 26th, 2007 - January 4th, 2008
Mileage 7801-11250
Consumption: 38.3 mpg
Trips:
65-80 mph: 2200 miles
45-65 mph: 800 miles
0-45 mph: ~450 miles
Notes:
Average trip temperature: 20 F

Victory in the Iowa caucuses: priceless