The continental water year typically starts anew in October.
In peninsular south Florida, May marks our water year start.
|Animated map depicting the seasonal ebb and flow of flood and drought in Big Cypress National Preserve|
Why the difference?
Water years are typically aligned to start at or around when waters bottom out.
Up north that happens at the end of the hot summer, i.e. fall.
For south Florida it happens at the end of spring.
South Florida is currently 5 months into its water year.