Cooling degree days (F) - United States (excluding Alaska and Hawaii) - NOAA - Daily
This series is part of the dataset: Heating and cooling degree days (NOAA)
Download Full Dataset (.xlsx)Latest updates. In the United States (excluding Alaska and Hawaii), cooling degree days were 1.0 degrees Fahrenheit on 25 March 2025, unchanged with respect to 24 March.
Sample. There are 16,155 observations overall in the daily time series presented in the graph above. The series covers the time span extending from January 1981 to March 2025.
History. Here’s a quick look at a few statistics we calculated on the whole sample: degree days averaged 3.6 degrees Fahrenheit; they peaked at 17.0 on 22 July 2011; they reached their lowest level of 0.0 on 1 January 1981.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2025-03-23 | 0.0 |
| 2025-03-24 | 1.0 |
| 2025-03-25 | 1.0 |
Heads-up. To simplify exploration, we group time series into data sets and worksheets. By moving down the page, you will find how we structured further information linked to the statistics found here.
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Series Metadata
| Field | Value |
|---|---|
| Description | Cooling degree days |
| Country | United States (excluding Alaska and Hawaii) |
| 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 |