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 were 3.0 degrees Fahrenheit on 28 September 2026, compared to 5.0 on 27 September.
Sample. This daily series has 16,707 records overall. The time span covered by the series stretches from January 1981 to September 2026.
History. Here's a glimpse of a few simple statistics calculated on the whole sample: degree days had a mean value of 12.2 degrees Fahrenheit; they achieved a maximum of 62.0 on 21 January 1985; they reached their lowest level of 0.0 on 4 April 1981.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2026-09-26 | 7.0 |
| 2026-09-27 | 5.0 |
| 2026-09-28 | 3.0 |
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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 |
Series in the same data set
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