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 12.0 degrees Fahrenheit on 25 March 2025, compared to 15.0 on 24 March.
Sample. There are 16,155 observations in the daily time series displayed in the plot above. The series covers the time span going from January 1981 to March 2025.
History. Here’s a quick look at some summary statistics calculated on the full sample: degree days averaged 11.7 degrees Fahrenheit; they recorded a maximum of 51.0 on 25 December 1983; they reached their lowest level of 0.0 on 29 May 1981.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2025-03-23 | 17.0 |
| 2025-03-24 | 15.0 |
| 2025-03-25 | 12.0 |
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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 |