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 3.0 degrees Fahrenheit on 28 September 2026, as on the previous day.
Sample. There are 16,707 records in the daily series shown in the plot above. The period covered by the series stretches from January 1981 to September 2026.
History. Here's a peek at some simple statistics calculated on the full sample: degree days reached their highest level of 51.0 degrees Fahrenheit on 25 December 1983; they reached their minimum of 0.0 on 29 May 1981; they had an average value of 11.6.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2026-09-26 | 4.0 |
| 2026-09-27 | 3.0 |
| 2026-09-28 | 3.0 |
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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 |
Series in the same data set
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