Cooling degree days (F) - Maine (US) - NOAA - Daily
This series is part of the dataset: Heating and cooling degree days (NOAA)
Download Full Dataset (.xlsx)Latest updates. In Maine, cooling degree days stood at 0.0 degrees Fahrenheit on 23 September 2025, the same as on 22 September 2025.
Sample. There are 16,337 data points overall in the daily series shown in the plot above. The series covers the time period going from January 1981 to September 2025.
History. Here’s a quick look at some statistics we calculated on the entire sample: degree days had a mean of 0.7 degrees Fahrenheit; they reached a trough of 0.0 on 1 January 1981; they recorded their highest level of 16.0 on 22 July 2011.
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 | Maine (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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