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 6.0 degrees Fahrenheit on 23 September 2025, compared to 0.0 on 22 September.
Sample. This daily series has a total of 16,337 records. The period covered by the series is from January 1981 to September 2025.
History. Take a look at some descriptive statistics calculated on the full sample: degree days registered a minimum of 0.0 degrees Fahrenheit on 1 January 1981; they reached their highest level of 25.0 on 22 July 2011; they averaged 3.4.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2025-09-21 | 2.0 |
| 2025-09-22 | 0.0 |
| 2025-09-23 | 6.0 |
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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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