Cooling 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, cooling degree days were 0.0 degrees Fahrenheit on 28 December 2025, as on the previous day.
Sample. There are 16,433 data points overall in the daily time series displayed in the chart above. The time period covered by the series goes from January 1981 to December 2025.
History. Here's a glimpse of some summary statistics we computed on the full sample: degree days were equal on average to 3.3 degrees Fahrenheit; they reached their lowest level of 0.0 on 1 January 1981; they hit a maximum of 25.0 on 22 July 2011.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2025-12-26 | 0.0 |
| 2025-12-27 | 0.0 |
| 2025-12-28 | 0.0 |
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Series Metadata
| Field | Value |
|---|---|
| Description | Cooling degree days |
| Country | Delaware (US) |
| Economic concept | Cooling 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 | (max_daily_temperature + min_daily_temperature) / 2 - 65F |
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