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 13 November 2025, as on the previous day.
Sample. In this daily time series, there are a total of 16,388 data points. The series covers the span of time extending from January 1981 to November 2025.
History. Here's a glimpse of a few simple statistics we computed on the whole sample: degree days had a mean value of 2.5 degrees Fahrenheit; they hit a maximum of 20.0 on 22 July 2006; they reached a trough of 0.0 on 1 January 1981.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2025-11-11 | 1.0 |
| 2025-11-12 | 0.0 |
| 2025-11-13 | 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 |