Cooling 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, cooling degree days stood at 0.0 degrees Fahrenheit on 28 September 2026, unchanged with respect to 27 September.
Sample. There are 16,707 data points overall in the daily series shown in the graph above. The span of time covered by the series extends from January 1981 to September 2026.
History. Have a look at a few descriptive statistics calculated on the whole sample: degree days reached a maximum of 22.0 degrees Fahrenheit on 22 July 2011; they registered a minimum of 0.0 on 1 January 1981; they averaged 1.8.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2026-09-26 | 0.0 |
| 2026-09-27 | 0.0 |
| 2026-09-28 | 0.0 |
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Series Metadata
| Field | Value |
|---|---|
| Description | Cooling degree days |
| Country | Connecticut (US) |
| Economic concept | Cooling 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 | (max_daily_temperature + min_daily_temperature) / 2 - 65F |
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