The average U.S. residential price of propane reached $2.59 per gallon (gal) as of October 4, 2021, the highest price reported for the first week of the winter heating season since 2011, according to our Heating Oil and Propane Update (HOPU). The winter heating season runs from October through March. Prices during the first four weeks of the current winter heating season were 49% higher than the same time last winter.