Cooling degree days (F) - Washington (US) - NOAA - Daily
This series is part of the dataset: Heating and cooling degree days (NOAA)
Download Full Dataset (.xlsx)Latest updates. In Washington, cooling degree days stood at 0.0 degrees Fahrenheit on 28 December 2025, the same as on 27 December 2025.
Sample. The daily series displayed in the graph has 16,433 observations. The period covered by the series is from January 1981 to December 2025.
History. Have a look at some descriptive statistics computed on the entire sample: degree days had a mean of 0.5 degrees Fahrenheit; they reached their maximum of 14.0 on 9 August 1981; they reached a minimum of 0.0 on 1 January 1981.
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 | Washington (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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