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USGS Flow Data Norwalk River at South Wilton, Connecticut

USGS PEAK ANNUAL DISCHARGE

DATE GAGE
HEIGHT
(Feet)		 DISCHARGE
(CFS)		 WATER
 YEAR
10/16/1955 13.50 12000 1955
3/6/1963 3.31 715 1963
1/25/1964 3.30 715 1964
2/8/1965 2.90 470 1965
3/1/1966 2.67 350 1966
3/7/1967 2.70 365 1967
5/29/1968 3.83 1020 1968
3/25/1969 3.97 1100 1969
4/2/1970 4.33 1660 1970
9/14/1971 4.37 1360 1971
6/19/1972 4.79 1690 1972
2/3/1973 4.69 1610 1973
12/21/1973 4.60 1540 1974
9/27/1975 4.16 1220 1975
1/28/1976 4.28 1290 1976
3/22/1977 4.47 1440 1977
1/26/1978 4.83 2270 1978
1/21/1979 5.70 2420 1979
4/10/1980 6.27 2890 1980
2/20/1981 3.06 560 1981
6/5/1982 4.43 1400 1982
4/10/1983 4.53 1480 1983
4/5/1984 4.59 1690 1984
9/27/1985 3.53 969 1985
1/26/1986 3.52 962 1986
4/4/1987 5.25 2190 1987
2/20/1988 2.56 400 1988
5/16/1989 5.43 2310 1989
10/20/1989 3.91 1010 1990
10/24/1990 4.44 1360 1991
8/18/1992 3.27 612 1992
12/2/1996 4.50 1400 1997
1/24/1998 3.07 523 1998
9/17/1999 4.90 1720 1999
EXTREME FOR PERIOD OF RECORD

RANKED USGS PEAK ANNUAL DISCHARGE

WATER
 YEAR		 GAGE
HEIGHT
(Feet)		 DISCHARGE
(CFS)		 PROB OF
EXCEED		 RANK
1966 2.67 350 97.1 34
1967 2.7 365 94.3 33
1988 2.56 400 91.4 32
1965 2.9 470 88.6 31
1998 3.07 523 85.7 30
1981 3.06 560 82.9 29
1992 3.27 612 80.0 28
1964 3.3 715 77.1 27
1963 3.31 715 74.3 26
1986 3.52 962 71.4 25
1985 3.53 969 68.6 24
1990 3.91 1010 65.7 23
1968 3.83 1020 62.9 22
1969 3.97 1100 60.0 21
1975 4.16 1220 57.1 20
1976 4.28 1290 54.3 19
1971 4.37 1360 51.4 18
1991 4.44 1360 48.6 17
1982 4.43 1400 45.7 16
1997 4.5 1400 42.9 15
1977 4.47 1440 40.0 14
1983 4.53 1480 37.1 13
1974 4.6 1540 34.3 12
1973 4.69 1610 31.4 11
1970 4.33 1660 28.6 10
1984 4.59 1690 25.7 9
1972 4.79 1690 22.9 8
1999 4.9 1720 20.0 7
1987 5.25 2190 17.1 6
1978 4.83 2270 14.3 5
1989 5.43 2310 11.4 4
1979 5.7 2420 8.6 3
1980 6.27 2890 5.7 2
1955 13.5 12000 2.9 1

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