Heating degree days (F) - United States (excluding Alaska and Hawaii) - NOAA - Daily
This series is part of the dataset: Heating and cooling degree days (NOAA)
Download Full Dataset (.xlsx)Latest updates. In the United States (excluding Alaska and Hawaii), heating degree days stood at 19.0 degrees Fahrenheit on 28 December 2025, compared to 20.0 on 27 December.
Sample. The daily series presented in the figure has 16,433 records. The span of time covered by the series goes from January 1981 to December 2025.
History. Here’s a quick look at some simple statistics we calculated on the whole sample: degree days registered a minimum of 0.0 degrees Fahrenheit on 29 May 1981; they hit a maximum of 51.0 on 25 December 1983; they had a mean value of 11.6.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2025-12-26 | 19.0 |
| 2025-12-27 | 20.0 |
| 2025-12-28 | 19.0 |
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Series Metadata
| Field | Value |
|---|---|
| Description | Heating degree days |
| Country | United States (excluding Alaska and Hawaii) |
| Economic concept | Heating needs |
| Data type | Estimate based on daily minimum and maximum temperatures |
| Deflation method | Not applicable |
| Seasonally adjusted | No |
| Rescaling | Population-weighted averages of weather-station observations |
| Frequency | Daily |
| Unit | Degrees Fahrenheit |
| Source | NOAA National Weather Service |
| Source type | Federal Administration |
| Data licence | Not copyrightable under U.S. law |
| Measure type | 65F - (max_daily_temperature + min_daily_temperature) / 2 |
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