3 Months Heating Degree Days Lake Norman Heating Degree Days of the Past 3 Months Heating Degree Days graph of the past 3 months. This graph is updated on the hour. Today | 1 Week | Month | 3 Months | Year Weather Home | Air Temperature | Water Temperature | Humidity | Average Wind Speed | High Wind Speed | Wind Chill | Wind Direction | High Wind Direction | Wind Run | Rain | Rain Rate | Barometer | Dew Point | THW Index | Heat Index | Air Density | Cooling Degree Days | Heating Degree Days | EMC
