It depends on how far back you look.
|How dry is it?|
"Below staff gage" dry
Or in other words,
Limited to the last twenty years, the answer is “about as dry as it gets.”
|How dry it is depends on how far back you go.|
Double that back to forty and suddenly it isn’t as dry.
Or should I say rather, not such a rare occurrence.
Spring droughts of 1971, 1975, 1976, 1982, and 1989-1991, of which 1971 and 1989 are shown on the graph. Not only were they deeper during the spring, those years were drier for a longer duration through the winter and even as early back as the fall.
|Tamiami Trail's Bridge 105 in May 2009|
But that’s splitting hydrologic hairs:
Deep drought is as dry as the wet season is reliable.
Over the long-term, waters start to rebound by Mid May.