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 16.0 degrees Fahrenheit on 28 September 2026, compared to 19.0 on the previous day.
Sample. There are 16,707 records overall in the daily time series shown in the figure above. The time range covered by the series is from January 1981 to September 2026.
History. Here's a glimpse of a few statistics calculated on the entire sample: degree days reached their minimum of 0.0 degrees Fahrenheit on 26 June 1981; they peaked at 89.0 on 24 December 1983; they were equal on average to 21.4.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2026-09-26 | 13.0 |
| 2026-09-27 | 19.0 |
| 2026-09-28 | 16.0 |
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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.