For the September through November period, the Des Moines Airport reported its warmest fall season on record this year as shown by the featured chart. It beat out 1931 and 2015 by a rather wide margin of a full degree. The chart depicts years that are above long term average in red and below in blue. Most of the recent years have been above this long term average and the yellow highlighted line depicts a 30 year trailing average that has been trending upward as well.

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Tags:   2016