From the St. Johns River Water Management District
August rainfall marked a return to above-average levels across much of the St. Johns River Water Management District region. Early in the month, Hurricane Debby brought significant rain to northern and western counties, with typical summer rain patterns contributing throughout the rest of August. Thirteen of the District's 18 counties reported rainfall totals above their monthly averages, with northern and western areas seeing the most substantial amounts.
A full report outlining August’s hydrologic conditions was presented at the District’s Governing Board meeting. Highlights include:
Rainfall
- Districtwide average rainfall was 8.43 inches, 1.43 inches above the monthly average.
- County-wide monthly rainfall totals ranged from a high of 13.89 inches in Nassau County to a low of 6.15 inches in Volusia County.
- Cumulative rainfall for the past 12 months was 54.03 inches, 3.02 inches above the long-term average.
- Thirteen counties are now above their annual average, with Nassau County 13.5 inches above its annual average.
Groundwater
- The Upper Floridan Aquifer showed a strong increasing trend in August, with most areas now in the normal range and some along the western boundary moving into the high range.
- Districtwide groundwater levels, expressed as a single index, were in the 63rd percentile, normal for this time of year.
Spring flows
- Silver Springs recorded a mean monthly flow of 676 cubic feet per second (cfs), or 437 million gallons per day (mgd), a 108 cfs increase from July, remaining in the normal range for this time of year.
- Blue Spring station in Volusia County reported a mean monthly flow of 147 cfs (95 mgd), also within the normal range.
- Rock Springs saw a slight increase, remaining in the normal range at 59 cfs (38 mgd).
- Wekiwa Springs recorded a mean monthly flow of 62 cfs (40 mgd), also in the normal range for this time of year.
For further insights into rainfall totals and other hydrologic data, visit www.sjrwmd.com.
Visit WaterLessFlorida.com for tips to help landscapes thrive while saving water and money. Follow the water conservation conversation at #sjrwmd #waterconservation #savewater.
About the St. Johns River Water Management District
St. Johns River Water Management District staff are committed to ensuring the sustainable use and protection of water resources for the benefit of the people of the District and the state of Florida. The St. Johns River Water Management District is one of five districts in Florida managing groundwater and surface water supplies in the state. The District encompasses all or part of 18 northeast and east-central Florida counties. District headquarters are in Palatka, and staff are also available to serve the public at service centers in Apopka, Jacksonville, and Palm Bay.
For more information about the District, please visit www.sjrwmd.com.
