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On the weather page, there is a section called "Season cooling degree days." What is that based on and what does it mean?

Here's the definition of degree days according to the National Oceanic and Atmospheric Administration and the National Weather Service:

"The amount of deviation in the average daily temperature from 65 degrees. Average temperatures greater than 65 degrees yield cooling degree days, where average daily temperatures less than 65 degrees yield heating degree days.

"An example: The high temperature for a day is 75 degrees and the low temperature for the day is 65. That gives an average temperature for the day of 70 degrees and results in five cooling degree days."

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