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 28 December 2025, the same as on 27 December 2025.
Sample. In the daily time series displayed in the chart, there are 16,433 observations. The series covers the period extending from January 1981 to December 2025.
History. Here are a few summary statistics we calculated on the entire sample: degree days were equal on average to 3.6 degrees Fahrenheit; they recorded their highest level of 17.0 on 22 July 2011; they recorded a minimum of 0.0 on 1 January 1981.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2025-12-26 | 1.0 |
| 2025-12-27 | 1.0 |
| 2025-12-28 | 1.0 |
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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 |
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