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Water-Year Summary for Site 381510076320001

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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.
  • For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
  • Not all sites have reports available for every water year.
Available Parameters
00045 Precipitation(Sum)  

Water year 2025: 2024-10-01 to 2025-09-30
 
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USGS Water-Year Summary 2025
381510076320001 RAIN GAGE AT ST MARYS LAKE NEAR CALLAWAY, MD
LOCATION - Lat 38°15'10.1", long 76°32'00.4" referenced to North American Datum of 1983, St. Mary's County, MD, Hydrologic Unit 02070011, on west (lake) side of earthen impoundment of Saint Mary's Lake, 1.3 mi northwest of Callaway, MD.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - March 26, 2024 to current year.
INSTRUMENTATION - Standard 8-in. diameter, tipping-bucket precipitation gage with 0.01-in. tip increment.
EXTREMES FOR PERIOD OF RECORD - Maximum daily precipitation, 1.47 in., July 12, 2024.
REMARKS - Gaps in record indicate missing or erroneous data. Estimated records are based on confirmation with nearby U.S. Geological Survey sites, National Weather Service sites and local observer records. U.S. Geological Survey water-data telemeter at station.