Heating degree days (F) - Massachusetts (US) - NOAA - Daily
This series is part of the dataset: Heating and cooling degree days (NOAA)
Download Full Dataset (.xlsx)Latest updates. In Massachusetts, heating degree days were 3.0 degrees Fahrenheit on 23 September 2025, compared to 7.0 on 22 September 2025.
Sample. In this daily time series, there are 16,337 records overall. The time period covered by the series is from January 1981 to September 2025.
History. Here’s a quick look at a few statistics calculated on the whole sample: degree days recorded their maximum of 65.0 degrees Fahrenheit on 12 January 1981; they reached a trough of 0.0 on 25 May 1981; they averaged 17.0.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2025-09-21 | 10.0 |
| 2025-09-22 | 7.0 |
| 2025-09-23 | 3.0 |
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Series Metadata
| Field | Value |
|---|---|
| Description | Heating degree days |
| Country | Massachusetts (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 |
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