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 stood at 8.0 degrees Fahrenheit on 17 September 2026, compared to 12.0 on the previous day.
Sample. In the daily series presented in the figure, there are 16,696 records in total. The time span covered by the series stretches from January 1981 to September 2026.
History. Here's a glimpse of some descriptive statistics we calculated on the entire sample: degree days reached their maximum of 89.0 degrees Fahrenheit on 24 December 1983; they hit a trough of 0.0 on 26 June 1981; they had an average value of 21.4.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2026-09-15 | 14.0000 |
| 2026-09-16 | 12.0000 |
| 2026-09-17 | 8.00000 |
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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.