Cooling 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, cooling degree days stood at 0.0 degrees Fahrenheit on 14 August 2026, as on the previous day.
Sample. The daily series shown in the graph has 16,662 observations overall. The time span covered by the series goes from January 1981 to August 2026.
History. Take a look at a few summary statistics calculated on the entire sample: degree days averaged 0.6 degrees Fahrenheit; they reached their highest level of 16.0 on 14 July 2002; they hit a trough of 0.0 on 1 January 1981.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2026-08-12 | 1.0 |
| 2026-08-13 | 0.0 |
| 2026-08-14 | 0.0 |
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Series Metadata
| Field | Value |
|---|---|
| Description | Cooling degree days |
| Country | Montana (US) |
| Economic concept | Cooling 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 | (max_daily_temperature + min_daily_temperature) / 2 - 65F |
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