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 stood at 5.0 degrees Fahrenheit on 14 August 2026, unchanged with respect to 13 August 2026.
Sample. There are 16,662 data points in the daily time series shown in the plot above. The period covered by the series stretches from January 1981 to August 2026.
History. Have a look at a few statistics calculated on the whole sample: degree days were equal on average to 2.5 degrees Fahrenheit; they hit a minimum of 0.0 on 1 January 1981; they reached a maximum of 20.0 on 22 July 2006.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2026-08-12 | 9.0 |
| 2026-08-13 | 5.0 |
| 2026-08-14 | 5.0 |
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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
Discover the other time series included in this data set.