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Peak Streamflow for the Nation

USGS 08181400 Helotes Ck at Helotes, TX

Bexar County, Texas
Hydrologic Unit Code 12100302
Latitude  29°34'42", Longitude  98°41'29" NAD27
Drainage area 15.0  square miles
Contributing drainage area 15.0  square miles
Gage datum 1,014.82 feet above NGVD29
Output formats
Table
Graph
Tab-separated file
peakfq (watstore) format
Reselect output format
Water
Year		 Date Gage
Height
(feet)		 Stream-
flow
(cfs)
1969 1969-05-16 3.10 184
1970 1970-05-26 5.43 2,040
1971 1971-08-13 3.24 346
1972 1972-05-07 5.10 1,740
1973 1973-07-16 10.80 7,680
1974 1974-09-12 5.05 1,690
1975 1975-02-04 2.06 44.0
1976 1976-04-18 5.51 2,090
1977 1976-10-24 5.21 1,810
1978 1977-11-01 5.37 1,970
1979 1979-06-01 3.40 592
1980 1979-11-17 1.91 18.0
1981 1981-06-14 4.47 1,260
1982 1982-05-16 3.86 856
1983 1983-07-17 1.81 15.0
1984 1984-05-28 1.87 21.0
1985 1985-06-05 7.35 3,910
1986 1986-05-31 3.59 640
1987 1987-06-11 10.33 7,140
1988 1988-07-27 2.27 64.0
1989 1989-01-29 2.24 60.0
1990 1990-07-31 2.65 116
1991 1991-05-03 6.01 2,460
1992 1992-05-21 6.33 2,840
1993 1993-05-05 3.50 420
1994 1994-05-13 2.52 83.0
1995 1995-04-04 2.46 74.0
1996 1995-10-31 2.03 24.0
1997 1997-06-22 7.96 4,560
1998 1998-03-16 4.38 944
1999 1998-10-18 15.21 12,600
2000 1999-10-17 2.10 51.0
2001 2000-10-23 5.51 1,980
2002 2002-07-02 13.76 10,900
2003 2002-10-24 2.60 116
2004 2004-06-29 3.59 367
2005 2004-10-02 2.34 79.0
2006 2006-05-06 2.25 52.0
2007 2007-08-16 10.58 9,280
2008 2008-08-24 2.20 22.0
2009 2009-09-10 2.30 29.0
2010 2010-05-14 4.38 1,580
2011 2011-01-09 1.85 7.70
2012 2011-10-09 2.68 148
2013 2013-05-25 3.75 928
2014 2014-07-18 2.90 251
2015 2015-05-30 6.65 4,010
2016 2015-10-10 8.11 6,260
2017 2017-08-07 2.56 87.3
2018 2018-09-09 7.40 5,380
2019 2019-06-30 4.29 1,250
2020 2019-10-24 2.09 21.0
2021 2021-07-06 6.45 4,200
2022 2021-10-14 3.51 420
2023 2023-06-04 2.60 145
2024 2024-07-23 2.43 79.1