On a cooling day, the average temperature of the day is 18.3°C or higher. Cooling degree days allow conclusions to be drawn about the weather-related energy demand for the cooling of buildings.
On a cooling day, the average temperature of the day is 18.3°C or higher. Cooling degree days allow conclusions to be drawn about the weather-related energy demand for the cooling of buildings.
They correspond to the sum of the daily difference between 18.3°C (derived from the US definition for cooling degree days: daily average temperature >= 65 °F) and the average daily temperature of all cooling days.
The number of cooling days and cooling degree days has increased significantly in recent decades due to climate change. This trend will continue in the future.