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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
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USGS Water-Year Summary 2024
131729144393766 Umatac Rain Gage at Umatac, Guam
LOCATION - Lat 13°17'30.4", long -144°94'3.9" referenced to North American Datum of 1983, Guam County, GM, Hydrologic Unit 22010000, located approximately 100 ft west of the Umatac Fire Station, off route 4, 0.3 miles south of Umatac Bay.
REVISIONS HISTORY - Precipitation data from December 4, 2018 to March 27, 2019 was revised on July 17, 2019.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - December 1978 to current year. Prior to October 1988 and October 1990 to September 2005, unpublished records are in the files of the U.S. Geological Survey.
INSTRUMENTATION - An 8-inch dual tipping-bucket catchment system mounted on top of gage structure approximately 9 ft above ground. Elevation of gage is approximately 180 ft from topographic map.
REMARKS - Rainfall recorded in 0.01 inch increments.
