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 1.0 degrees Fahrenheit on 23 September 2025, compared to 7.0 on 22 September.
Sample. In this daily time series, there are 16,337 observations. The series covers the span of time going from January 1981 to September 2025.
History. Here are a few simple statistics we computed on the entire sample: degree days recorded their highest level of 65.0 degrees Fahrenheit on 18 January 1982; they reached a minimum of 0.0 on 25 May 1981; they had a mean value of 16.1.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2025-09-21 | 8.0 |
| 2025-09-22 | 7.0 |
| 2025-09-23 | 1.0 |
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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 |
Series in the same data set
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