Heating degree days are calculated for how much energy is needed to heat a home. For example, if a day has a high of 65 and a low of 35, the average temperature is 50 degrees.

And depending on whether it’s above or below 65, you have a cooling or heating degree day. So if the temperature, if the average, was above 65, you have a cooling degree day. So let’s do a little math ...

Dear Tom, If heating and cooling degree units are recorded year-round, while are cooling degree days accumulated on an annual basis while heating degree days are longed from July 1-June 30?

Weather related heating needs last winter were the 9th lowest on record for South Carolina (going back to 1888). NOAA tracks heating needs using heating degree days, which calculates the "coolness ...

The National Oceanic and Atmospheric Administration said this week it had revised heating degree day calculations going back to January due to data problems that sometimes overstated total heating ...

The map above, based on a new analysis from the Climate Impact Lab, shows how 95-degree days (35 degrees Celsius) are expected to multiply this century if countries take moderate climate action.In ...

While the current jet stream pattern and recent wet weather have brought a cool conclusion to May, the forecast calls for a warm start to June. Despite the cool finish to the month, May has ...

Across the state, there has been an annual reduction of 359 heating degree-days during 1958 to 2010 when compared data for 1895 to 1957, per EPA numbers. When comparing the same range of years ...

At the turn of the 20th century, the annual average of 90-degree days was about 25. In the mid-1970s, D.C. might have expected about 33 days so hot. From 2010 to 2020, ...