Station Information

Station ID: 360
Latitude: 38.873333
Longitude: -77.021667
Coastline code: 960
Station code: 76
Time span of data: 1931 – 2023
Completeness (%): 98
Date of last update: 10 Jan 2024

Green Arrow: Current Station
Yellow Marker: Neighbouring RLR Station
Red Marker: Neighbouring Metric Station

Please note: In many cases, the station position in our database is accurate to only one minute. Thus, the tide gauge may not appear to be on the coast.

Additional Data Sources (guide to additional data sources)

Nearby GNSS Stations from SONEL: WDC4, USN8, USNO, WDC5, WDC6, USN3, USN7, NRL1, WDC3, USN9

Station Documentation

Link to RLR information.

Documentation added 1991-06-11

Washington 960/076 RLR(1971) is 10.1m below BM B1

Documentation added 2011-10-12

Using data from NOAA the RLR diagram has been revised. Previous Primary benchmark BM B1 4.971m above gauge datum no longer appears in the NOAA listings. Primary benchmark is now TIDAL NO 1 1951 4.115m above gauge datum.

Data Authority

N.O.A.A. / N.O.S.
N/oes33, Ssmc4, Room 6531
1305 East-West Highway
Silver Spring,
MD 20910