Heating Degree Days | Cooling Degree Days | The Weather Channel
Note: Heating degree days are weighted by residential gas customers, vary slightly across regions, and represent a composite of all NiSource market areas. Normal degree days change slightly year to year due to updated station weightings and rolling 30 year averages. |
Note: Cooling degree days are weighted by residential electric customers. Normal degree days change slightly year to year due to updated station weightings and rolling 30 year averages. |