The National Oceanic and Atmospheric Administration (NOAA) reports cooling degree day (CDD) data for every seven-day period by state. From that data, they construct a populated-weighted national total.
CDDs are the difference between the daily temperature mean (high temperature plus low temperature divided by two) and 65°F. If the temperature mean is above 65°F, we subtract 65 from the mean.
Example: The high temperature for a particular day was 90°F and the low temperature was 66°F. The temperature mean for that day was: Continue reading "How The Natural Gas Storage Glut Has Been Cut This Summer"