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 19.0 degrees Fahrenheit on 13 November 2025, compared to 22.0 on the previous day.
Sample. There are 16,388 data points in the daily series shown in the figure above. The span of time covered by the series extends from January 1981 to November 2025.
History. Here's a snapshot of a few descriptive statistics we computed on the full sample: degree days reached their maximum of 89.0 degrees Fahrenheit on 24 December 1983; they recorded a bottom of 0.0 on 26 June 1981; they were equal on average to 21.4.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2025-11-11 | 21.0 |
| 2025-11-12 | 22.0 |
| 2025-11-13 | 19.0 |
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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 |