Warm and muggy air streamed into Iowa on Monday before being swept out by a cold front passage Monday evening. A harsh reminder of the current winter season impacted the state over night. But before then, Des Moines was able to tie its all-time warmest December temperature of 69 degrees. The featured table looks at the hourly temperature reports from Sunday into Monday for Des Moines and the previous hour for December with as warm of a temperature. For 8 AM and Noon yesterday, the hourly temperature was the warmest on record based on IEM archives for the site.

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Tags:   dec17