NPGA Bobtail

January 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 chart states the number of HDDs that have occurred in the month of January during the past 3 years, as well as the month’s 10-year average (2021-2012), broken down by Census Division.

 

Census Division Jan 2021 Jan 2020 Jan 2019 Jan 10-Year Average
New England 1121 1032 1221 1168.6
Middle Atlantic 1066 958 1153 1112
East North Central 1148 1051 1303 1226.6
West North Central 1180 1223 1359 1278.5
South Atlantic 576 481 582 592
East South Central 737 635 748 765.8
West South Central 516 430 545 533.5
Mountain 871 847 893 874.8
Pacific 550 564 542 544.6
United States 802 739 859 838.2

 

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.