2015/2016 probably. It's awesome.
"Living where we do, it is extremely difficult to get long stretches of time without some sort of significant precipitation. That being said, we do occasionally string together several weeks or months of relatively dry weather. 2015 and 2016 were two very dry years, both averaging close to 10" below the average rainfall. Being a combined 20" below average in a two-year span was just about as dry as we have been in this area in our lifetimes."