The featured chart displays the largest drop in minimum low temperature over the previous coldest temperature accumulated after 1 July until the end of the year. The 2019 value of seven degrees is highlighted for Ames and is one of the smallest on record, but there is still plenty of year to go, so one would expect to see a larger drop upcoming. The point of the plot is to gauge how quickly we can drop down in temperature. Given the current coldest value of 27, perhaps our next coldest temperature could be some 10 to 15 degrees colder than that. The present near term forecast does not indicate such an event is possible.

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