IEM Daily Feature
Wednesday, 13 September 2023

80+ in September

Posted: 13 Sep 2023 05:30 AM

The weather this week has generally been a treat for early fall with crisp mornings and comfortable highs in the 70s. The forecast has a chance for a few upcoming days in the low 80s for highs, which is certainly something typical for this time of year as shown by the featured chart. The chart presents the daily frequency of having a high temperature of at least 80 degrees for Des Moines during September. There's a remarkable difference between the start and end of the month. There's also an interesting bump in frequency around 15th through 20th, which is difficult to easily explain away. The moral of this story is that such warm days should be enjoyed as we creep closer to October and such days increasing fleeting.

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