For the contiguous U.S., the December 2007 mean temperature was 33.6 degrees F, near the 20th century average of 33.4 degrees F. The Southeast was much warmer than average, while 11 states, including the Upper Midwest to the West Coast, were cooler than average.
Temperatures were warmer-than-average for December 2007 in large parts of the more heavily populated eastern United States. This resulted in temperature related energy demand about 1.9 percent below average for the nation as a whole, based on NOAA's Residential Energy Demand Temperature Index (REDTI). For the year, the REDTI estimates that national residential energy consumption was about 2.5 percent below average.
December 2007 was wetter than normal for the contiguous United States and was the 18th wettest December since national records began in 1895. Thirty-seven states were wetter, or much wetter, than average. Only Texas, Louisiana, Mississippi, and North Dakota were drier than average.