Heating degree days (F) - Delaware (US) - NOAA - Daily
This series is part of the dataset: Heating and cooling degree days (NOAA)
Download Full Dataset (.xlsx)Latest updates. In Delaware, heating degree days stood at 10.0 degrees Fahrenheit on 12 November 2026, versus 13.0 on the previous day.
Sample. In this daily series, there are 16,752 data points. The time period covered by the series goes from January 1981 to November 2026.
History. Here's a glimpse of a few simple statistics we computed on the entire sample: degree days hit a trough of 0.0 degrees Fahrenheit on 4 April 1981; they reached their highest level of 62.0 degrees Fahrenheit on 21 January 1985; they had a mean of 12.2 degrees Fahrenheit.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2026-11-10 | 12.0000 |
| 2026-11-11 | 13.0000 |
| 2026-11-12 | 10.0000 |
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Series Metadata
| Field | Value |
|---|---|
| Description | Heating degree days |
| Country | Delaware (US) |
| 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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