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 January during the past 3 years, as well as the month’s 10-year average, broken down by Census Division.
| Census Division | Jan 2024 | Jan 2023 | Jan 2022 | Jan 10-Year Average |
| New England | 1088 | 925 | 1303 | 1145 |
| Middle Atlantic | 1019 | 844 | 1242 | 1085 |
| East North Central | 1191 | 997 | 1391 | 1204 |
| West North Central | 1341 | 1182 | 1443 | 1289 |
| South Atlantic | 576 | 449 | 644 | 580 |
| East South Central | 853 | 579 | 849 | 760 |
| West South Central | 635 | 401 | 576 | 537 |
| Mountain | 916 | 963 | 886 | 887 |
| Pacific | 580 | 632 | 539 | 557 |
| United States | 841 | 715 | 912 | 831 |
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.
Related News
DOE Withdraws Boiler Rule
January 23, 2025
On Friday, January 17th, the Department of Energy (DOE) withdrew its Proposed Rule: Energy Conservation Standards for Consumer Boilers. DOE explain...
NPGA Files Suit Against DOE Rule on Tankless Water Heaters
January 23, 2025
On Friday, January 17th, NPGA, partner organizations, and 21 states filed an initial brief in our lawsuit challenging a Biden-era United State...
President Trump Issues Energy-Related Executive Orders
January 23, 2025
On his first day in office, Monday, January 20th, President Trump released dozens of Executive Orders. Most relevant to the propane industry ...