September is a classic transition month, not just for weather, but the shift from summer to fall schedules, the darker mornings and evenings, the foliage, the garden harvest, all play roles in signaling us of the changes than turn most everyone’s world around the other way. Longer night and less heating permit colder temperatures at night, leading to the first frosts of the season. Weather fronts start the month far to the north, but begin their fall visits in most years this month. Every few years a tropical storm or the remnants of a hurricane add their tropical juices to soak the summer-parched landscape. However, the character of the weather most years is quiet, with foggy, misty mornings, and mild, hazy afternoons.
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September Records and Averages
Warmest: 67.9°F in 1961 Coldest: 54.2°F in 1950
Wettest: 8.59 inches in 1999 Driest: 0.68 inches in 1908