IEM Daily Feature
Thursday, 26 July 2012

Comparing Years

Posted: 26 Jul 2012 05:47 AM


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A common question asked this summer is how does this year compare with previous drought years, like 1988. While there is no easy nor correct answer to this question, we can certainly try different methods. The featured chart presents three time series of accumulated temperature and precipitation departures for the May through August time period. The year 2012 compares closely with 1988 at the current date of the year, but will it finish in a similar fashion? The current date precipitation departures from 1 May are some of the worst on record, so is this year worse than the epic years of 1934 or 1936? The temperature departure in the top chart has 1934 and 1936 with substantial leads over 2012. 1977 is thrown in as it was a significant drought for some in the state, is it worse than 2012? The bottom chart presents the distance from a zero temperature and precipitation departure, again there is no clear cut answer.

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Tags:   2012   1955   1934   1936   1977