Cooling degree days (F) - California (US) - NOAA - Daily
This series is part of the dataset: Heating and cooling degree days (NOAA)
Download Full Dataset (.xlsx)Latest updates. In California, cooling degree days were 0.0 degrees Fahrenheit on 28 December 2025, the same value recorded on the previous day.
Sample. There are 16,433 data points overall in the daily time series shown in the chart above. The span of time covered by the series stretches from January 1981 to December 2025.
History. Here's a snapshot of some simple statistics we calculated on the whole sample: degree days achieved a maximum of 20.0 degrees Fahrenheit on 22 July 2006; they reached their lowest level of 0.0 on 1 January 1981; they averaged 2.5.
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 | California (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 |
Series in the same data set
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