The Sioux City and surrounding area remains some of the driest in the state with very little to speak of for recent rainfalls. This area is also some of the climatologically driest in the state, so is this year just another typical year for the area? The featured chart attempts to look into that question by comparing the yearly precipitation total for Sioux City vs an unweighted population of other long term climate sites in the state. The top panel shows the percentile value that the Sioux City total ranks against all other Iowa reports and the bottom panel shows a bias against the simple statewide mean value. A note to start off with that this plot indicates that the values for 1902 may need some further review as it certainly looks suspect! That aside, this area is not always the driest part of the state and sometimes even wetter than a vast majority of other locations in the state. So the moral of the story is that dry portions of the state can still be anomalously dry as well!

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