Member Events and News

February 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 February during the past 3 years, as well as the month’s 10-year average, broken down by Census Division.

Census Division Feb 2025 Feb 2024 Feb 2023 Feb 10-Year Average
New England 1075 915 938 966
Middle Atlantic 973 829 813 884
East North Central 1075 775 880 984
West North Central 1199 761 1030 1085
South Atlantic 405 404 306 391
East South Central 547 450 417 513
West South Central 381 255 329 367
Mountain 674 677 828 740
Pacific 464 500 593 495
United States 686 575 621 657

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