The featured chart is a timeseries from the Cantril RWIS site showing air, pavement, and sub surface temperatures since last Thursday. The impact of having sunny days on temperatures can clearly be seen with the textbook delayed response as you go deeper into the ground. The black dashed line is the temperature at 60 inches which was warming this past weekend while everything else was cooling off. While the impacts of sunshine near the surface have a daily signal, the deeper you go the slower things vary. You can even notice the difference between 8 and 16 inches.

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Good = 17
Bad = 9

Tags:   rwis