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 September 2026, the same value recorded on the previous day.
Sample. There are 16,707 observations in the daily series presented in the plot above. The time span covered by the series extends from January 1981 to September 2026.
History. Check out a few summary statistics calculated on the full sample: degree days hit a minimum of 0.0 degrees Fahrenheit on 1 January 1981; they recorded their highest level of 25.0 on 22 July 2011; they were equal on average to 3.4.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2026-09-26 | 0.0 |
| 2026-09-27 | 0.0 |
| 2026-09-28 | 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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