|September 2018 was cooler by 2.5 degrees F
compared to last September. Year over year, we had a 12.22-inch increase in monthly
rainfall and a decrease in average wind speed of 1.4 mph. In addition, last
month had one day that reached at least 95 degrees. Members should expect
September 2018 usage to be the same to slightly less when compared to September
It’s no secret that temperature extremes can contribute to high utility bills. Keep up with the current forecast and view Weather SmartStats, updated monthly, on this page 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 account. From there, you can compare your energy consumption charts or data with local temperatures, your neighborhood and CoServ. 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.
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 equals 10).