With March winding to a close, it is a good idea to check in on monthly stats. For average low temperature at Des Moines, this month continues a streak of having above average daily low temperatures. The featured chart displays this metric since 2010 along with the monthly El Nino index. The climatology used in this plot is the present day period of record data. February 2015 was the last such month below average. Kind of interesting to remind ourselves how extreme March 2012 was as it really sticks out in this chart.

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