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 36.0 degrees Fahrenheit on 12 February 2026, unchanged with respect to 11 February.
Sample. This daily time series has a total of 16,479 data points. The series covers the time range going from January 1981 to February 2026.
History. Here’s a quick look at a few simple statistics calculated on the entire sample: degree days had a mean of 16.2 degrees Fahrenheit; they reached their highest level of 65.0 on 18 January 1982; they recorded a minimum of 0.0 on 25 May 1981.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2026-02-10 | 44.0 |
| 2026-02-11 | 36.0 |
| 2026-02-12 | 36.0 |
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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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