Heating 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, heating degree days were 9.0 degrees Fahrenheit on 25 March 2025, versus 18.0 on 24 March.
Sample. In this daily series, there are 16,155 data points overall. The period covered by the series extends from January 1981 to March 2025.
History. Here’s a quick look at some summary statistics we computed on the whole sample: degree days recorded a minimum of 0.0 degrees Fahrenheit on 3 July 1981; they recorded their highest level of 55.0 on 23 December 1983; they were equal on average to 15.2.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2025-03-23 | 22.0 |
| 2025-03-24 | 18.0 |
| 2025-03-25 | 9.0 |
Suggestion. One of the advantages of our web site is that we publish complete metadata. Check it below to gain insights on the characteristics of the time series that you use in your work.
Not for investment purposes. Time series and other data found on this web site are not not supposed to be used for investment purposes or any other financial decision. Users should consult expert advice and perform independent analysis before pledging money to any investment.
Series Metadata
| Field | Value |
|---|---|
| Description | Heating degree days |
| Country | Washington (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 |