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 stood at 19.0 degrees Fahrenheit on 12 November 2026, versus 16.0 on 11 November 2026.
Sample. In the daily time series displayed in the plot, there are 16,752 records. The series covers the time range stretching from January 1981 to November 2026.
History. Here's a snapshot of a few summary statistics we computed on the full sample: degree days recorded their maximum of 65.0 degrees Fahrenheit on 18 January 1982; they hit a trough of 0.0 degrees Fahrenheit on 25 May 1981; they averaged 16.1 degrees Fahrenheit.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2026-11-10 | 15.0000 |
| 2026-11-11 | 16.0000 |
| 2026-11-12 | 19.0000 |
Hint. 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 |
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