USGS Water-Year Summary 2024
01376269 HUDSON RIVER AT PIERMONT, NY
LOCATION - Lat 41°02'35.5", long 73°53'45.8" referenced to North American Datum of 1983, Rockland County, NY, Hydrologic Unit 02030101, on right bank on upstream landward facing section of concrete pier, at east end of Ferry Road, 1.3 mi east of Piermont, and 24.9 mi north of the Battery.
DRAINAGE AREA - 13,125 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - November 2010 to February 2012, June 2013 to current year.
GAGE - Water-stage recorder. Datum of gage is NGVD of 1929 (New York State Department of Transportation bench mark). To convert elevations to NAVD of 1988, subtract 1.06 ft.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of Oct. 29, 2012, reached an elevation of 10.68 ft, from floodmark.
EXTREMES FOR PERIOD OF RECORD - Maximum elevation, 7.40 ft, Aug. 28, 2011; minimum elevation, -4.00 ft, Jan. 6, 2018.
WATER-QUALITY RECORDS
PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: November 2010 to February 2012, July 2013 to September 2015.
WATER TEMPERATURE: November 2010 to February 2012, July 2013 to September 2015.
INSTRUMENTATION - Water-temperature and specific-conductance satellite telemeter provides 15-minute-interval readings.
EXTREMES FOR PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: Maximum, 27,200 uS/cm at 25 °C, Sept. 29, 2013; minimum, 183 uS/cm at 25 °C, Apr. 30, 2011.
WATER TEMPERATURE: Maximum, 31.1 °C, July 22, 2011, July 18, 2013; minimum, -0.6 °C, Jan. 21, 23, 24, Feb. 3, 2011.