USGS 02236125 ST. JOHNS RIVER AT ASTOR, FL

PROVISIONAL DATA SUBJECT TO REVISION

Click to hidestation-specific text

This gage is monitored in cooperation with the St. Johns River Water Management District.

Link to the St. Johns River Water Management District.

Data are tidally affected -- Astronomical tides cause significant cycles of approximately 24.84 hours at this site. Because a different portion of the 24.84-hour tidal cycle is averaged in successive daily (24-hour) computations, a systematic secondary oscillation, unrelated to basin hydrology and having a period of about two weeks may be apparent in daily data.

REMARKS.--Computed discharge at this station may differ from individual measurements because of changes in tidal influence, wind, or other factors.

Available Parameters Available Period
  
2007-12-13  2016-09-30
1995-10-01  2025-07-07
2007-10-01  2025-07-07
2007-12-13  2016-09-30
2008-07-11  2016-09-30
2010-10-01  2025-07-07
2008-07-11  2015-09-30
2007-10-01  2025-07-05
2025-03-09  2025-07-07







 (7)
 

  -- or --

 


 

Summary of all available data for this site
Instantaneous-data availability statement

Temperature, water, degrees Celsius
 
-- Data temporarily unavailable for the time period specified --


Discharge, cubic feet per second

Most recent instantaneous value: 524 07-07-2025   08:30 EDT
Graph of  Discharge, cubic feet per second

Add up to 2 more sites and replot for "Discharge, cubic feet per second"

?
 


Create presentation-quality / stand-alone graph.   Subscribe to WaterAlert      

See this graph on the Monitoring Location Pages


Daily discharge, cubic feet per second -- statistics for Jul 7 based on 30 water years of record more
Min
(2000)
Most Recent
Instantaneous
Value Jul 7
25th
percen-
tile
Mean Median 75th
percen-
tile
Max
(2018)
408 524 1620 2990 3200 3960 8460


Gage height, feet

Most recent instantaneous value: 1.15 07-07-2025   08:30 EDT
Graph of  Gage height, feet

Add up to 2 more sites and replot for "Gage height, feet"

?
 


Create presentation-quality / stand-alone graph.   Subscribe to WaterAlert      

See this graph on the Monitoring Location Pages



Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius
 
-- Data temporarily unavailable for the time period specified --

Dissolved oxygen, water, unfiltered, milligrams per liter
 
-- Data temporarily unavailable for the time period specified --


Stream water level elevation above NAVD 1988, in feet

Most recent instantaneous value: 0.04 07-07-2025   08:30 EDT
Graph of  Stream water level elevation above NAVD 1988, in feet

Add up to 2 more sites and replot for "Stream water level elevation above NAVD 1988, in feet"

?
 


Create presentation-quality / stand-alone graph.   Subscribe to WaterAlert      

See this graph on the Monitoring Location Pages



Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)
 
-- Data temporarily unavailable for the time period specified --


Discharge, tidally filtered, cubic feet per second

Most recent instantaneous value: -193 07-05-2025   21:00 EDT
Graph of  Discharge, tidally filtered, cubic feet per second

Add up to 2 more sites and replot for "Discharge, tidally filtered, cubic feet per second"

?
 


Create presentation-quality / stand-alone graph.   Subscribe to WaterAlert      

See this graph on the Monitoring Location Pages




Mean water velocity for discharge computation, feet per second

Most recent instantaneous value: 0.06 07-07-2025   08:30 EDT
Graph of  Mean water velocity for discharge computation, feet per second

Add up to 2 more sites and replot for "Mean water velocity for discharge computation, feet per second"

?
 


Create presentation-quality / stand-alone graph.   Subscribe to WaterAlert      

See this graph on the Monitoring Location Pages