Degree days are a way to measure the amount of heating or cooling that is required for a certain period, based on the temperature. Variations in your electric bill often follow along closely with degree days. In other words, the hotter or colder it is, the higher your energy bills will be.
Check the chart below for month-by-month information on degree days for Champaign, Illinois.
For complete climatology information, visit the Illinois State Water Survey website.