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 were 0.0 degrees Fahrenheit on 13 November 2025, the same as on 12 November.
Sample. In the daily time series shown in the figure, there are 16,388 observations. The series covers the time span going from January 1981 to November 2025.
History. Have a look at some descriptive statistics we calculated on the full sample: degree days reached a minimum of 0.0 degrees Fahrenheit on 1 January 1981; they reached their highest level of 22.0 on 22 July 2011; they were equal on average to 1.8.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2025-11-11 | 0.0 |
| 2025-11-12 | 0.0 |
| 2025-11-13 | 0.0 |
Nugget of wisdom. An advantage of our data visualization and download service is that we publish rich metadata. Find it below to learn more about the properties of the time series that you analyze.
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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 |