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USGS 01376520 HUDSON RIVER AT PIER 25 AT NEW YORK NY

PROVISIONAL DATA SUBJECT TO REVISION

Click to hidestation-specific text
The 15-minute precipitation data for this station are temporary and will only be displayed for 120 days. Although the instrumentation is calibrated at least once/year, the temporary classification means that documented routine inspections and other quality assurance measures are not performed that would make the data acceptable for archival, retrieval, or future use in general scientific or interpretive studies.

 

> Site Information
LOCATION.--Lat 40°43'17.5", long 74°00'56.2" referenced to North American Datum of 1983, New York County, NY, Hydrologic Unit 02030101, on left bank at Pier 25, 1.3 mi upstream of mouth, 9.8 mi downstream of George Washington Bridge on US Highway 95, and 12.1 mi downstream of Harlem River in New York, New York.
PERIOD OF DAILY RECORD1.--WATER TEMPERATURE: July 2019 to current year.
SPECIFIC CONDUCTANCE: July 2019 to current year.
SALINITY: July 2019 to current year.
pH: July 2019 to current year.
DISSOLVED OXYGEN: July 2019 to current year.
TURBIDITY: July 2019 to current year.
INSTRUMENTATION1.--A multi-parameter water-quality sonde measures water temperature, specific conductance, pH, dissolved oxygen, and turbidity at 15-minute intervals since July 2019. Salinity record computed from specific-conductance readings.
COOPERATION1.--Maintained by the Hudson River Environmental Conditions Observing System in cooperation with the Hudson River Park Trust.
EXTREMES FOR PERIOD OF DAILY RECORD1.--WATER TEMPERATURE: Maximum, 26.7 °C, July 17, 2023; minimum, 0.5 °C, Feb. 21, 2021.
SPECIFIC CONDUCTANCE: Maximum, 44,700 uS/cm @ 25 °C, Aug. 11, 2022; minimum, 1,895 uS/cm @ 25 °C, Dec. 20, 2023.
SALINITY: Maximum, 28.9 psu, Aug. 11, 2022; minimum, 1.0 psu, Dec. 20, 2023.
pH: Maximum, 8.3, Nov. 8, 16, 2019; minimum, 7.4, Aug. 2, 4, 5, 6, 2019.
DISSOLVED OXYGEN: Maximum, 13.4 mg/L, Dec. 19, 2019, Feb. 8, 2022; minimum, 3.5 mg/L, Aug. 31, 2022.
TURBIDITY: Maximum, 61.5 FNU, Feb. 5, 2021; minimum, <0.3 FNU, Feb. 28, 2021. [<, actual value is known to be less than the value shown]
1 Water-Quality Records
> Rating Information
This station managed by the NY Water Science Center Troy.

Available Parameters Available Period
  
2019-07-30  2025-11-10
2025-07-13  2025-11-10
2025-07-13  2025-11-10
2025-07-13  2025-11-10
2025-07-13  2025-11-10
2019-07-30  2025-11-10
2019-07-30  2025-11-10
2025-07-13  2025-11-10
2019-07-30  2025-11-10
2025-07-13  2025-11-10
2025-07-13  2025-11-10
2019-07-30  2025-11-10
2025-07-13  2025-11-10
2025-07-13  2025-11-10
2019-07-30  2025-11-10







 (7)
 
  -- or --

 

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

Temperature, water, degrees Celsius, [HRECOS]
Most recent instantaneous value: 13.2 11-11-2025   00:00 EST
Graph of Temperature, water, degrees Celsius, [HRECOS]

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Temperature, air, degrees Celsius, [HRECOS]
Most recent instantaneous value: 2.8 11-11-2025   00:00 EST
Graph of Temperature, air, degrees Celsius, [HRECOS]

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Wind direction, degrees clockwise from true north, [HRECOS]
 
-- Data temporarily unavailable for the time period specified --

Precipitation, total, inches, [HRECOS]
Most recent instantaneous value: 0.000 11-11-2025   00:00 EST
Graph of Precipitation, total, inches, [HRECOS]

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Relative humidity, percent, [HRECOS]
Most recent instantaneous value: 46.5 11-11-2025   00:00 EST
Graph of Relative humidity, percent, [HRECOS]

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Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius, [HRECOS]
Most recent instantaneous value: 32200 11-11-2025   00:00 EST
Graph of Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius, [HRECOS]

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Dissolved oxygen, water, unfiltered, milligrams per liter, [HRECOS]
Most recent instantaneous value: 8.6 11-11-2025   00:00 EST
Graph of Dissolved oxygen, water, unfiltered, milligrams per liter, [HRECOS]

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Dissolved oxygen, water, unfiltered, percent of saturation, [HRECOS]
Most recent instantaneous value: 93 11-11-2025   00:00 EST
Graph of Dissolved oxygen, water, unfiltered, percent of saturation, [HRECOS]

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pH, water, unfiltered, field, standard units, [HRECOS]
Most recent instantaneous value: 7.8 11-11-2025   00:00 EST
Graph of pH, water, unfiltered, field, standard units, [HRECOS]

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Wind gust speed, air, knots, [HRECOS]
Most recent instantaneous value: 9.60 11-11-2025   00:00 EST
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Estuary or ocean water surface elevation above NAVD 1988, feet, [HRECOS]
Most recent instantaneous value: 1.03 11-10-2025   23:46 EST
Graph of Estuary or ocean water surface elevation above NAVD 1988, feet, [HRECOS]

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Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU), [HRECOS]
Most recent instantaneous value: 8.9 11-11-2025   00:00 EST
Graph of Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU), [HRECOS]

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Barometric pressure, not corrected to sea level, millibars, [HRECOS]
Most recent instantaneous value: 1006 11-11-2025   00:00 EST
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Wind speed, knots, [HRECOS]
Most recent instantaneous value: 8.16 11-11-2025   00:00 EST
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Salinity, water, unfiltered, practical salinity units at 25 degrees Celsius, [HRECOS]
Most recent instantaneous value: 20.0 11-11-2025   00:00 EST
Graph of Salinity, water, unfiltered, practical salinity units at 25 degrees Celsius, [HRECOS]

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