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 were 0.0 degrees Fahrenheit on 23 September 2025, the same as on 22 September.
Sample. This daily time series has 16,337 records. The span of time covered by the series goes from January 1981 to September 2025.
History. Here’s a quick look at some statistics we calculated on the entire sample: degree days were equal on average to 0.6 degrees Fahrenheit; they peaked at 16.0 on 14 July 2002; they reached a minimum of 0.0 on 1 January 1981.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2025-09-21 | 0.0 |
| 2025-09-22 | 0.0 |
| 2025-09-23 | 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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