Comfort First Heating & Cooling has released an analysis of the 1991-2020 U.S. Climate Normals showing that about two-thirds of the normal outdoor-temperature heating demand in Sanford, North Carolina, falls after Christmas. The study, which examined daily heating-degree-day normals at the Sanford 8 NE weather station, found that 64.4% of the station's normal July-June heating demand occurs between December 26 and June 30, compared with 19.6% before December (July 1-November 30). This means the after-Christmas period has 3.28 times as much normal heating demand as the before-December period.
The analysis is based on a qualified panel of 48 weather stations across North Carolina, using a fixed July 1-June 30 cycle. Heating degree days are a measure of outdoor temperature with a 65°F base, and the findings describe the historical normal cycle at each station. Raleigh-Durham International Airport showed a similar pattern, with 65.5% of its normal heating demand after Christmas and 18.6% before December, a ratio of 3.52. The study also found that all 48 stations in the panel have a larger after-Christmas share than before-December share, with a median after-Christmas share of 64.9%.
The implications for homeowners are significant: the bulk of heating demand occurs after the holidays, so planning for heating costs and maintenance should account for the entire season, not just the pre-Christmas period. "Sanford's figures put the seasonal calendar in perspective," said Adam Hagen, general manager at Comfort First Heating & Cooling. "About two-thirds of the normal outdoor-temperature heating demand falls after Christmas. Homeowners can keep that longer view in mind when planning around the holidays, while remembering that the weather in an individual winter can differ from the historical pattern." The study notes that the 1991-2020 normals are not a forecast and do not establish spending, bills, energy use, or conditions in winter 2026-27.
Comfort First Heating & Cooling provides HVAC services in Sanford and the Triangle. The company, founded in 2010, offers heating, cooling, plumbing, indoor air quality, and generator services across the Triangle, Triad, Charlotte, Jacksonville, and Outer Banks areas. More information is available at yourcomfortfirst.com. The analysis underscores the importance of preparing for the post-Christmas heating season, as the majority of normal heating demand occurs then, which could influence how residents budget and schedule HVAC maintenance.
