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 1.0 degrees Fahrenheit on 23 September 2025, the same value recorded on the previous day.
Sample. In the daily time series shown in the figure, there are 16,337 observations overall. The span of time covered by the series goes from January 1981 to September 2025.
History. Here's a peek at some descriptive statistics we computed on the entire sample: degree days peaked at 51.0 degrees Fahrenheit on 25 December 1983; they hit a minimum of 0.0 on 29 May 1981; they had a mean of 11.6.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2025-09-21 | 1.0 |
| 2025-09-22 | 1.0 |
| 2025-09-23 | 1.0 |
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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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