Heating 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, heating degree days were 0.0 degrees Fahrenheit on 14 August 2026, unchanged with respect to 13 August.
Sample. In this daily time series, there are 16,662 data points. The series covers the time span stretching from January 1981 to August 2026.
History. Take a look at some summary statistics computed on the full sample: degree days registered a minimum of 0.0 degrees Fahrenheit on 29 April 1981; they recorded a maximum of 36.0 on 22 December 1990; they were equal on average to 6.9.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2026-08-12 | 0.0 |
| 2026-08-13 | 0.0 |
| 2026-08-14 | 0.0 |
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Series Metadata
| Field | Value |
|---|---|
| Description | Heating degree days |
| Country | California (US) |
| Economic concept | Heating 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 | 65F - (max_daily_temperature + min_daily_temperature) / 2 |
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