The 2015 Water Year: Drought continues despite heavy rainfall. Here’s why

Despite 50 Inches of Rain, Thurston County is in a Drought

It may surprise people to look at the current precipitation amounts and conclude that we are indeed in a drought. If you look solely at those precipitation numbers for 2015 you would not suspect that Thurston County was suffering from an acute drought. That is because a drought is not caused by lack of precipitation alone. It involves a much more complex set of climate conditions that, together, create the parched conditions from the mountains to the sea and from the land surface to the underground aquifers. These conditions also must persist over several months or seasons. The sections below provide some facts that explain why we are currently in a declared drought in Thurston County and Washington State.

In general, droughts are very complex and caused by a number of factors. Read the full report (PDF).

Note: The 2015 Water Year report covers the ‘water year’ which runs from Oct. 2014 -Sept. 2015.

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