Ask Heather: What is a heating degree day?

Oil Heat Specialist

Q: What is a heating degree-day?

A: Heating degree-days help us to calculate when you need a fuel delivery. For every degree that the average daily tempera‑ ture is below 65°, we count one degree-day. So, if the average temperature on any given day is 25°, that’s equivalent to 40 degree-days.

The heating season runs from October 1 to April 1, and Pennsylvania usually records an average of 5,000 heating degree days each year. By looking at degree-days and combining that data with other factors, we can create a highly reliable delivery schedule, ensuring that automatic delivery customers have a very low risk of running out, compared with folks who call for their fuel.

If you’re interested in getting automatic deliveries, please contact us and we’ll get you set up.