A few weeks back, we featured a plot known as an aridity plot showing the combination of seasonal temperature and precipitation departure from average. This departure is measured in units of standard deviation to provide a closer comparison between temperature and precipitation departures. 2012 still ranks up there with the other legendary years of Iowa's climatological past. A simple linear fit is also shown. While the correlation is a bit low, the implication is that dry years tend to be warm and wet years tend to be cool.

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Tags:   aridity