September was an exceptionally warm month. It really brought us a pleasant extension of what had been a fairly cool summer. It was also the first month with consistently above-average temperatures since last November.
However, the warm spell has ended. The first few days of October have been around 10 degrees below average, and there is no sign of warm air headed our direction this week.
However, the warm September followed by this cool weather suggests a pattern of wide variance. By late October, average high temperatures are in the 40s and the average lows are in the 20s. But if we were to hit a cold snap at month's end, it could be quite chilly around here by Halloween.
The record books indicate rare, but occasional instances of subzero temperatures in late October. In case we hit a warm spell, there have been a few Halloween days with temperatures in the 70s.
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