IEM Daily Feature
Thursday, 21 March 2019

Spring Already Started

Posted: 21 Mar 2019 05:09 AM

On Wednesday afternoon, the spring season officially started with the vernal equinox. Of course, the spring season is an arbitrary period of time that can be defined a number of ways. One such way is to define it as the period starting after the coldest 91 day stretch of days. The featured chart presents such an analysis and shows that for Ames, this coldest period ended on 8 March. Irregardless, the warmer recent temperatures, even if only near average have felt nice.

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