EIA Short-Term Energy Outlook
U.S. ENERGY INFORMATION ADMINISTRATION
WASHINGTON DC 20585
FOR IMMEDIATE RELEASE
May 9, 2023
Beginning with the May 2023 Short-Term Energy Outlook (STEO), our STEO model will combine a 30-year trendline and the National Oceanic and Atmospheric Administration’s forecast to create our weather forecasts. This methodology change will result in warmer forecast weather in the United States in both the winter and in the summer. The change will involve a one-time shift that will decrease our heating degree day (HDD) forcast in 2023 by 1% and in 2024 by 4%, and increase our cooling degree day (CDD) forecast by 8% in 2023 and by 12% in 2024. The shift will affect some series that use weather as an independent variable.