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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
12142000 NORTH FORK SNOQUALMIE RIVER NEAR SNOQUALMIE FALLS, WA
LOCATION - Lat 47°36'54", long 121°42'44" referenced to North American Datum of 1927, in NW 1/4 NW 1/4 sec.31, T.25 N., R.9 E., King County, WA, Hydrologic Unit 17110010, on left bank 0.6 mi upstream from Calligan Creek, 7.0 mi northeast of town of Snoqualmie Falls, and at mile 9.2.
DRAINAGE AREA - 64 mi².
REVISIONS HISTORY - WSP 1346: 1930-31(M), 1932, 1935, 1936-37(M), 1938, 1939-42(M), 1944, 1945-46(P), 1947, 1948(P), 1949(M). WSP 1736: 1932-34(M), 1935, 1938(M), 1943-45(M), 1947(M), drainage area. WSP 1932: 1950-54(M), 1956-57(M), 1959(M).
SURFACE-WATER RECORDS
PERIOD OF RECORD - August 1929 to October 1949, water years 1950-54, 56-57, 59-60 (annual maximum), February 1961 to current year.
GAGE - Water-stage recorder and crest-stage gage. Elevation of gage is 1,130 ft above NGVD of 1929 (topographic map) and is 1,135.99 ft above NAVD of 1988 (GNSS survey by USGS on Sept. 8, 2022). Prior to Oct. 19, 1949, water-stage recorder, and October 1949 to February 1961, crest-stage gage, at site 1,500 ft downstream at different datum.
REMARKS - No regulation or diversion upstream from station. Daily water temperatures June 1979 to August 1980. U.S. Geological Survey satellite telemeter at station.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 17,100 ft³/s, Jan. 7, 2009, gage height, 13.42 ft; minimum daily discharge, 24.4 ft³/s, Sept. 17, 2023.
