Why I think fall started today…

This morning I posted “Happy First Day of Fall” on Facebook and I got people telling me that fall doesn’t really start until September 22nd.

If you believe that seasons are are determined by the exact times of transit of the sun over the tropics of Cancer and Capricorn for the solstices and the times of the sun’s transit over the equator for the equinoxes you are correct that Fall doesn’t start for 21 days.

If you think seasons are determined by the weather with Summer being the hottest quarter of the year and winter the coldest quarter of the year then Fall started today. I am in the meteorological season camp because it lines up more closely with the seasons I think months fall in.

Here is a chart with the average temperatures in Jefferson City to show my point.

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