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 2.0 degrees Fahrenheit on 14 May 2026, the same as on the previous day.
Sample. The daily time series shown in the figure has a total of 16,570 records. The series covers the span of time extending from January 1981 to May 2026.
History. Here's a peek at a few simple statistics calculated on the whole sample: degree days reached their maximum of 17.0 degrees Fahrenheit on 22 July 2011; they recorded a minimum of 0.0 on 1 January 1981; they averaged 3.6.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2026-05-12 | 2.0 |
| 2026-05-13 | 2.0 |
| 2026-05-14 | 2.0 |
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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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