Energy Update - 01/11/2021  (Plain Text Version)

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In this issue:
•  Pennsylvanians Take Control of Your Energy Budget
Editor's Note
•  Return of the “Polar Vortex”?
Weather
•  Washington, D.C. Area Cooling/Heating Degree Days

 

Weather

Washington, D.C. Area Cooling/Heating Degree Days

  

 

Jul-20 

Aug-20 

Sep-20 

Oct-20 

Nov-20 

Dec-20 

Normal 

 527

 450

260

 56

467

690

 Actual

 586

 453

187

 32

321

731

Departure from Normal 

11%, Warmer 

1%,    Warmer 

28%, Colder 

43%, Colder 

31%, Warmer 

6%, Colder 

Cooling degree day (CDD) data is for the Washington, D.C. area and is calculated by comparing the day’s average temperature to a 65-degree baseline. If the day’s average temperature is below 65, there are no cooling degree days that day. If the day’s average temperature is greater than 65 degrees, then subtract 65 from the average temperature to find the number of cooling degree days.

**Heating degree day (HDD) data is for the Washington, D.C. area and is calculated by comparing the day’s average temperature to a 65 degree baseline. If the day’s average temperature is above 65, there are no heating degree days that day. If the day’s average temperature is less than 65 degrees, then subtract that average temperature from 65 to find the number of heating degree days.