IEM Daily Feature
Tuesday, 04 August 2015

Aridity for July

Posted: 04 Aug 2015 05:41 AM

The month of July is past us now, so it is a good time to look back and compare it with previous years. The featured plot is known as an aridity plot, which compares the normalized departure of temperature with precipitation. The normalization is accomplished by computing the standard deviation each data set and using that value as the unit of measure. The value for 2015 is highlighted with a circle around the origin, with some of the years outside of that circle labelled. The flood year of 1993 sticks out clearly as the historic precipitation totals well surpass any other July. This year came in on the cool and wet side of long term averages.

Good = 18
Bad = 6
Abstain = 5

Tags:   aridity