Heating degree days (F) - Connecticut (US) - NOAA - Daily
This series is part of the dataset: Heating and cooling degree days (NOAA)
Download Full Dataset (.xlsx)Latest updates. In Connecticut, heating degree days were 22.0 degrees Fahrenheit on 13 November 2025, compared to 25.0 on the previous day.
Sample. There are 16,388 records overall in the daily time series displayed in the plot above. The series covers the period going from January 1981 to November 2025.
History. Here's a snapshot of a few descriptive statistics we calculated on the entire sample: degree days had an average value of 16.1 degrees Fahrenheit; they attained a maximum of 65.0 on 18 January 1982; they reached their minimum of 0.0 on 25 May 1981.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2025-11-11 | 29.0 |
| 2025-11-12 | 25.0 |
| 2025-11-13 | 22.0 |
Nugget of wisdom. We group indicators into data sets and worksheets to simplify exploration. By moving down the page, you will discover how we arranged further information linked to the statistics published here.
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Series Metadata
| Field | Value |
|---|---|
| Description | Heating degree days |
| Country | Connecticut (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 |