USGS 08171350 Blanco Rv at San Marcos, TX

PROVISIONAL DATA SUBJECT TO REVISION

Click to hidestation-specific text
Funding for this site is provided by the cooperators / programs below:
Click to go to the Guadalupe-Blanco River Authority web page

Guadalupe-Blanco River Authority

retransmission, forecasts and summary of this location by the National Weather Service
Retransmission, forecasts and summary by the National Weather Service
This station managed by the San Antonio Field Unit.

Available Parameters Available Period
  
2015-01-22  2026-06-11
2015-01-22  2026-06-11







 (7)
 
  -- or --

 

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

Discharge, cubic feet per second
Most recent instantaneous value: 0.87 06-11-2026   23:45 CDT
Graph of Discharge, cubic feet per second

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

?
 
Note



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

See this graph on the Monitoring Location Pages

Share this graph |

Daily discharge, cubic feet per second -- statistics for Jun 12 based on 11 water years of record more
Min
(2022)		 Most Recent
Instantaneous
Value Jun 12		 25th
percen-
tile		 Median Mean 75th
percen-
tile		 Max
(2015)
0.00 0.87 2 116 174 212 633

Gage height, feet
Most recent instantaneous value: 7.89 06-11-2026   23:45 CDT
Graph of Gage height, feet

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

?
 
Note



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

See this graph on the Monitoring Location Pages

Share this graph |