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Peak Streamflow for the Nation

USGS 08151500 Llano Rv at Llano, TX

Llano County, Texas
Hydrologic Unit Code 12090204
Latitude  30°45'04", Longitude  98°40'10" NAD27
Drainage area 4,197  square miles
Contributing drainage area 4,192  square miles
Gage datum 970.08 feet above NAVD88
Output formats
Table
Graph
Tab-separated file
peakfq (watstore) format
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Water
Year		 Date Gage
Height
(feet)		 Stream-
flow
(cfs)
1935 1935-06-14 41.50 380,0007
1940 1940-06-20 12.90 28,200
1941 1941-04-27 12.64 26,700
1942 1942-08-23 11.22 23,400
1943 1943-06-05 16.92 50,600
1944 1944-05-25 8.24 10,100
1945 1945-01-18 7.61 8,500
1946 1946-05-17 10.47 18,200
1947 1947-01-18 7.55 8,500
1948 1948-06-25 22.90 108,000
1949 1949-04-25 9.78 14,600
1950 1950-05-16 7.49 7,770
1951 1951-05-25 9.27 13,900
1952 1952-09-10 32.60 232,000
1953 1953-05-12 11.88 16,500
1954 1953-10-04 7.09 3,460
1955 1955-05-19 19.00 72,000
1956 1956-08-31 5.82 1,850
1957 1957-05-27 16.39 47,200
1958 1957-10-14 21.78 83,700
1959 1959-06-26 14.06 35,600
1960 1959-10-04 22.28 103,000
1961 1961-06-19 18.87 57,600
1962 1962-06-02 4.48 1,700
1963 1963-09-16 4.58 1,810
1964 1964-09-24 20.10 67,200
1965 1965-05-16 12.66 24,800
1966 1966-04-25 9.97 15,400
1967 1967-05-20 12.56 27,400
1968 1968-01-20 16.22 44,400
1969 1969-05-07 6.22 4,520
1970 1969-10-05 27.02 154,000
1971 1971-08-12 14.14 28,000
1972 1971-10-20 13.37 24,5005
1973 1973-08-01 9.11 11,4005
1974 1973-10-13 26.98 154,0005
1975 1975-05-24 10.92 19,4005
1976 1976-07-04 17.92 61,5005
1977 1977-04-16 18.66 67,5005
1978 1978-08-03 25.61 139,0005
1979 1979-06-01 12.31 25,8005
1980 1980-09-08 31.11 210,0005
1981 1981-06-18 14.24 32,9005
1982 1981-10-14 23.79 116,0005
1983 1983-06-06 7.58 5,9705
1984 1984-07-28 3.29 4905
1985 1984-12-31 24.00 119,0005
1986 1985-10-20 16.47 47,1005
1987 1987-06-04 14.04 35,2005
1988 1988-07-12 19.21 72,1005
1989 1989-06-11 5.33 3,3105
1990 1990-05-03 20.94 87,9005
1991 1991-09-17 8.14 9,5305
1992 1992-02-04 20.51 83,7005
1993 1992-11-19 7.25 7,1605
1994 1994-05-15 7.34 7,3905
1995 1995-05-30 9.26 13,0005
1996 1996-08-30 8.14 9,5305
1997 1997-06-23 38.86 260,0005
1998 1998-08-24 14.05 34,7005
1999 1999-03-18 14.64 37,8005
2000 2000-05-02 4.21 2,0205
2001 2000-11-04 29.05 151,0005
2002 2001-11-16 18.81 61,7005
2003 2003-06-15 6.39 6,7205
2004 2004-06-09 22.15 85,2005
2005 2004-11-17 22.07 79,6005
2006 2006-05-06 5.18 4,7005
2007 2007-06-27 20.46 72,7005
2008 2008-04-27 4.04 2,4405
2009 2009-04-28 6.12 6,7305
2010 2010-04-16 8.61 12,4005
2011 2011-05-12 2.11 4155
2012 2011-10-09 6.79 7,5105
2013 2013-09-22 6.62 6,5505
2014 2014-05-28 5.27 3,6005
2015 2015-05-29 12.28 25,8005
2016 2016-05-31 12.78 30,0005
2017 2017-04-11 9.20 12,5005
2018 2018-09-23 10.52 19,5005
2019 2018-10-16 40.14 278,0005
2020 2020-03-22 6.73 7,2505
2021 2021-06-03 4.09 1,6205
2022 2022-09-01 6.91 7,7305
2023 2023-05-21 4.06 1,4705
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  Peak Streamflow Qualification Codes.