Exoten und Garten Forum
Hardy Palm and Subtropical Board
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That will change if you look at another set of 5 years...
Message from Mike coastal CT
or 10, or 50...etc. In the warm 1930's and 1940's Mobile might have had average first frosts a bit later. It's always changing, and always will.
Remember, the hallmark of middle latitude climates is that (often) no two seasons are exactly alike. The Tropics and the Poles are the places of seasonal temp stability.