Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

* We've detected you're using a mobile device. Find our Next Generation Station Page here.
Click to hideNews Bulletins

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
Reselect output format
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
?
  Peak Streamflow Qualification Codes.