Heating degree days (F) - Montana (US) - NOAA - Daily
This series is part of the dataset: Heating and cooling degree days (NOAA)
Download Full Dataset (.xlsx)Latest updates. In Montana, heating degree days were 54.0 degrees Fahrenheit on 28 December 2025, compared to 39.0 on 27 December 2025.
Sample. There are 16,433 data points in the daily time series presented in the plot above. The period covered by the series goes from January 1981 to December 2025.
History. Here's a peek at some descriptive statistics we computed on the whole sample: degree days had a mean of 21.5 degrees Fahrenheit; they reached their highest level of 89.0 on 24 December 1983; they hit a trough of 0.0 on 26 June 1981.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2025-12-26 | 29.0 |
| 2025-12-27 | 39.0 |
| 2025-12-28 | 54.0 |
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Series Metadata
| Field | Value |
|---|---|
| Description | Heating degree days |
| Country | Montana (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 |
Series in the same data set
Discover the other time series included in this data set.