A strong cold front swept the state clean of the mild and humid air on Thursday and we are now left with an extended period of rather chilly mid November weather. The featured chart presents the longest streaks during November of having the air temperature below 40 degrees based on hourly data for Des Moines. Only a handful of events have seen streaks of 200+ hours (~8 days + 8 hours) with the most recent happening during 2014. Given the present forecast, we may take a run at establishing another such streak over the coming week. Such a streak would be rather remarkable given we don't have any snow cover which would help hold down temperatures.

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