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 10.0 degrees Fahrenheit on 23 September 2025, compared to 11.0 on the previous day.
Sample. There are 16,337 records in the daily series presented in the plot above. The time span covered by the series goes from January 1981 to September 2025.
History. Check out some summary statistics calculated on the entire sample: degree days peaked at 89.0 degrees Fahrenheit on 24 December 1983; they registered a minimum of 0.0 on 26 June 1981; they had an average value of 21.4.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2025-09-21 | 5.0 |
| 2025-09-22 | 11.0 |
| 2025-09-23 | 10.0 |
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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.