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Important for you to know:

  • New to WDFN: see current water conditions throughout the state using the new State Pages. Filter by continuous data type and age of data, view latest values, and link to graphing options to explore the data further. To learn more, read our announcement on the Water Data for the Nation blog.

Streamgage data available from this location at this link.

Important Legacy real-time page

USGS Parameter Group Data Types Start Date End Date
Physical Unit Values 2023-04-01 2024-11-23
Water Data for the Nation inventory

Monitoring location 403430074365701 is associated with an Atmosphere in Somerset County, New Jersey. Current conditions of Precipitation are available. Water data back to 2023 are available online.

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.
Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
403430074365701 n/a
Site name
Somerville (Mercer St) USGS unheated rain gage NJ n/a
Site type
Atmosphere
AT
DMS latitude 403430 n/a
DMS longitude 0743657 n/a
Decimal latitude 40.575 n/a
Decimal longitude -74.6158333 n/a
Latitude-longitude method
Interpolated from MAP. M
Latitude-longitude accuracy
Accurate to + or - 1 sec. S
Latitude-longitude datum
North American Datum of 1983 NAD83
Decimal Latitude-longitude datum North American Datum of 1983 NAD83
District
New Jersey 34
State
New Jersey 34
County
Somerset County 035
Country US n/a
Land net location description Somerville Borough n/a
Name of location map Bound Brook n/a
Scale of location map 24000 n/a
Altitude of Gage/land surface n/a
Method altitude determined n/a
Altitude accuracy n/a
Altitude datum
n/a
Subbasin hydrologic unit
Raritan 02030105
Drainage basin
n/a
Topographic setting
n/a
Flags for instruments at site NNNNYNNNNNNNNYNNNNNNNNNNNNNNNN n/a
Date of first construction
n/a
Date site established or inventoried 20090511 n/a
Drainage area
n/a
Contributing drainage area n/a
Time Zone abbreviation EST n/a
Site honors Daylight Saving Time
Y n/a
Data reliability
n/a
Data-other GW files n/a
National aquifer n/a
Local aquifer n/a
Local aquifer type
n/a
Well depth n/a
Hole depth
n/a
Source of depth data n/a
Project number n/a