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 14 May 2026, the same as on 13 May 2026.
Sample. The daily series presented in the plot has 16,570 records. The series covers the period extending from January 1981 to May 2026.
History. Check out a few simple statistics we computed on the whole sample: degree days had a mean value of 1.8 degrees Fahrenheit; they hit a minimum of 0.0 on 1 January 1981; they hit a maximum of 22.0 on 22 July 2011.
Latest values
| Date | Value - Degrees Fahrenheit |
|---|---|
| 2026-05-12 | 0.0 |
| 2026-05-13 | 0.0 |
| 2026-05-14 | 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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