It's a Seven ccf Day Today, November 19, or Should Be

Average Normal Temperature on November 19 = 44 (Fernbank, Cincinnati)
Average Heating Degree Days for November 19 = 21 (65-44)
Average ccf for 3000 sq. ft, house November 19 = 7 (21/3 -- don't ask me why)
Average cost for 7 ccf for November 19 = $7 (1 ccf costs $1.00 to the end-user residential)