St Johns River above Lake Harney near Geneva, FL Water Level Today

NWS river forecast

Forecast from the NOAA National Water Prediction Service. Issued a few times a day and only while a forecast is active. Not for navigation.

Last 30 days

About this gauge

USGS gauge 02234000 sits on the St Johns River and reads everything draining 2,043 square miles of the Upper St. Johns basin. Daily flow has been on record here since 1982, 45 years of it.

Where this gauge sits in the drainage

Three gauged sites sit upstream of here. The closest is St Johns River near Christmas, FL, reading 1,539 square miles. This gauge adds the 504 square miles that drain in between. Downstream the next reading comes from St Johns River near Sanford, FL at 2,582 square miles, so what passes this gauge is about 79% of the water measured there. Water passing here goes on to St Johns River near De Land, FL.

Normal flows here

The St Johns River runs a median of 1,160 cfs at this gauge across 45 years of record. September is the fullest month at a median 2,950 cfs, and May the leanest at 417 cfs. The highest daily mean on record is 14,900 cfs in 2023, and the lowest is -310.0 cfs in 2007.

Medians from the USGS daily-statistics record, 1982 to 2026. A month at 100% is running at its own long-term median.

Flood stages and record crests

The St Johns River reaches flood stage at this gauge at 8 feet. NWS starts watching it at 6 feet. The highest crest on record is 12.7 feet, in October 2022.

Flood categories and crest history from the NOAA National Water Prediction Service, gauge GENF1. Stages are gage height, not depth. Not for navigation.