USGS Water-Year Summary 2021
02079490 JOHN H. KERR RESERVOIR NEAR BOYDTON, VA
LOCATION - Lat 36°35'54", long 78°17'57" referenced to North American Datum of 1927, Mecklenburg County, VA, Hydrologic Unit 03010102, at John H. Kerr Dam on Roanoke River, 2.7 mi upstream from Allen Creek, 6.7 mi southeast of Boydton, 18 mi upstream from the Virginia-North Carolina State line, and at mile 178.7.
PERIOD OF RECORD - March 2005 to current year. July 1950 to September 2004, month end elevations only, provided by the U.S. Army Corps of Engineers.
GAGE - Water-stage recorder. Datum of gage is 0.00 ft NGVD of 1929.
EXTREMES FOR PERIOD OF RECORD - Maximum elevation, 319.61 ft, Apr 29, 1987; minimum elevation, 280.23 ft, Feb 3, 1956.
PERIOD OF RECORD -
AIR TEMPERATURE: May 2011 to current year.
PRECIPITATION: October 2010 to current year. Unpublished records available March 2005 to September 2010 in files of the USGS.
INSTRUMENTATION - Electronic data logger with a 15-minute record interval. Tipping bucket rain gage and air temperature monitor.
EXTREMES FOR PERIOD OF RECORD -
AIR TEMPERATURE: Maximum, 103°F, June 29, 2012; minimum, 5.2°F, Jan. 30, 2014.
PRECIPITATION: Maximum daily precipitation, 3.69 in., Oct. 8, 2016.