Industry News

March Heating Degree Days

A heating degree day (HDD) is a measure of how cold a location is. It’s derived by comparing the average outdoor temperature to a baseline of 65 degrees. More extreme cold temperatures result in a higher number of HDDs, which typically translate to an increased demand for space heating by energy consumers.

The below data sets detail the number of HDDs that occurred in the month of March during the past 3 years, as well as the month’s 10-year average, broken down by Census Division.

Census Division March 2022 March 2021 March 2020 March 10-Year Average
New England 843 838 779 929
Middle Atlantic 760 736 670 845
East North Central 791 690 733 867
West North Central 847 673 745 846
South Atlantic 287 283 232 353
East South Central 386 339 293 435
West South Central 265 201 139 236
Mountain 608 646 602 518
Pacific 395 518 526 426
United States 525 508 485 569

 

Additional HDD data can be found under the Supply and Logistics section on the Member Dashboard of NPGA’s website. For more information, please contact NPGA’s Jacob Peterson.