Cumberland Electric Membership Corporation

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Monthly Temperature Report

Wondering why your electric bill varies from time to time? One reason may be changes in the weather. Below is a listing of the daily average temperatures from the U.S. Weather Bureau in Clarksville.

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See below for Degree Day explanation

2008	2007	2006

January 2008	January 2007	January 2006
February 2008	February 2007	February 2006
March 2008	March 2007	March 2006
April 2008	April 2007	April 2006
	May 2007	May 2006
	June 2007	June 2006
	July 2007	July 2006
	August 2007	August 2006
	September 2007	September 2006
	October 2007	October 2006
	November 2007	November 2006
	December 2007	December 2006


Degree Day Explanation

A degree day is a measure of relative heating and cooling energy 
required by buildings. It's calculated as the difference between the 
average daily temperature and the 65 degree base temperature
 (when no heating or cooling is needed). When the average daily 
temperature is above the base temperature, the result is cooling 
degree days; when below, the result is heating degree days.

Winter Degree Days Example

Today's High - 50

Today's Low - 20

Average Temperature - 35

Heating Degree Days = (65-35) = 30

Summer Degree Days Example
Today's High - 90
Today's Low - 70
Average Temperature - 80
Cooling Degree Days = (80-65) = 15