How Weather Affects Your Bill

Weather is the biggest reason for fluctuations in your bill. On average, 55 - 60% of your electric bill is made up of heating and cooling costs. Throughout the summer, one month's bill can differ greatly from another, as the summer weather in this area can be unpredictable.

When the temperature is 65 degrees Fahrenheit outside, your system doesn't have to work very hard to maintain a comfortable temperature. When the average temperature outside rises above 65 degrees Fahrenheit, your system works harder to cool your house. That’s why hot weather can affect your electric bill, even if you leave your thermostat on a constant setting. As you move into the summer, the temperature remains hotter for a longer period of time.

Examples


Below are some examples of how weather affects your bill, even if you keep your thermostat steady:

Example 1


With the same number of days, but hotter average temperatures:
  • July - 10 days at 85 degrees Fahrenheit
  • August - 10 days at 90 degrees Fahrenheit
August's bill may be higher.

Example 2


More days above 65 degrees Fahrenheit, with the same average temperatures:
  • July - 8 days at 85 degrees Fahrenheit
  • August - 10 days at 85 degrees Fahrenheit
August's bill may be higher.

Example 3


More days above 65 degrees Fahrenheit, with hotter average temperatures:
  • July - 10 days at 85 degrees Fahrenheit
  • August - 12 days at 90 degrees Fahrenheit
August's bill may be higher.
These increases are a normal part of electric consumption. Your lifestyle can also cause an unusually high bill. As the weather gets much warmer, you may find yourself gradually adjusting the thermostat. Your cooling system works around the clock - even when you're asleep. Continuously adjusting the thermostat can have an affect on the amount of electricity you use. It's best to leave it at a comfortable temperature, especially if you have an all-electric heat pump, which performs best when left on one setting.

If you have any more questions about how weather affects your bill, call us at 865-380-4700.