Oct 20, 2014

How does wet season stack up?

The rainy half of the year is almost through.

How did we measure up to previous wet seasons?

The bar chart above reports wet and dry season rainfall for south Florida from 1980 to present.  The long-term wet season average is 39 inches.  This year's 37 inches (with 10 days to go) is just shy of that mark.  The next six months (starting November 1st) mark the dry season half of the water year.   

The graph above divides the water year into two equal lengths:

May through October (color coded blue) displays the 6-month rain total wet season half of the water year. November through April (color coded red) displays the 6-month rain total for the dry half of the year. As you can see, this year's wet seasons total is down from the previous two years. But it's too early to call it a dry year. Deep drought doesn't typically strike south Florida until the spring. Until then, lower winter evapotranspiration rates and periodic frontal storms can sustain the water table high enough to keep the deeper sloughs, strands and domes wet well into the dry season.

A lingering El NiƱo may increase winter rain totals, too.

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