It’s no secret that temperature extremes can cause your utility bill to skyrocket. Check out CoServ's Weather SmartStats each month to determine:
- the effect of high, low and average temperatures on your energy usage.
- how average monthly wind speeds affected home air infiltration.
- how much rain fell in North Texas.
- the number of Heating and Cooling Degree Days.
For a customized view of how weather affects your monthly energy usage, log in to your CoServ Online account or create one. From there, you can compare your 13-month consumption charts with monthly temperatures. This allows you to easily see how weather affects your energy bill by charting high, average and low temperatures that are displayed just beneath your usage. (See example.)
View larger chart
Find out more about the weather’s effect on your energy usage at the National Weather Service. You’ll find current conditions and extended forecasts.
You can also learn how to save energy no matter how hot or cold it is outside.
What is a "Heating Degree Day" and "Cooling Degree Day"?
A "degree day" is a unit of measurement that records how hot or how cold it has been over a 24-hour period.
It also reflects demand for energy to heat or cool houses and businesses. The number of degree-days
applied to any particular day of the week is determined by calculating the mean temperature for the day
and then comparing the mean temperature to a base value of 65 degrees Fahrenheit. (The "mean"
temperature is calculated by adding together the high for the day and the low for the day, and then
dividing the result by 2.) For example, if the mean temperature for the day is 5 degrees higher than
65, then there has been a 5° cooling degree day. On the other hand, if temperatures have been cooler and
the mean temperature is 55 degrees, then there has been a 10° heating degree day (65 minus 55