Precipitation annual maximum series (inches) Station ID: 07-9605 Station name: WILMINGTON PORTER RSVR State: DE Latitude (decimal degrees): 39.7739 Longitude (decimal degrees): 75.5414 Elevation (feet): 270 Duration: 01d 2.05 1931 2.41 1932 3.60 1933 2.67 1934 3.33 1935 2.60 1936 2.03 1937 4.77 1938 3.58 1939 2.21 1940 1.83 1941 2.90 1942 2.03 1943 3.21 1944 6.42 1945 2.79 1946 2.98 1947 2.04 1948 1.50 1949 2.40 1950 2.33 1951 7.03 1952 2.66 1953 1.91 1954 2.87 1955 3.60 1956 1.88 1957 2.73 1958 3.28 1959 4.39 1960 2.41 1961 2.68 1962 2.00 1963 2.30 1964 2.83 1965 3.75 1966 3.02 1967 2.00 1968 4.13 1969 2.66 1970 6.40 1971 3.73 1972 3.30 1973 4.41 1974 2.75 1975 2.43 1976 2.58 1977 3.25 1978 2.21 1979 3.01 1980 3.60 1981 2.08 1982 2.80 1983 1.75 1984 3.83 1985 2.00 1986 2.07 1987 2.35 1988 6.15 1989 2.84 1990 3.96 1991 1.94 1992 3.62 1993 3.67 1994 2.42 1995 2.59 1996 2.19 1997 2.77 1998 9.30 1999 3.77 2000 Duration: 02d 2.92 1931 3.32 1932 5.26 1933 3.03 1934 3.76 1935 3.08 1936 2.04 1937 5.12 1938 3.95 1939 2.66 1940 2.36 1941 3.45 1942 2.18 1943 4.59 1944 6.53 1945 4.07 1946 4.49 1947 2.38 1948 2.33 1949 2.40 1950 2.49 1951 8.53 1952 2.66 1953 2.41 1954 4.81 1955 4.21 1956 1.92 1957 3.61 1958 3.28 1959 5.52 1960 2.69 1961 3.00 1962 3.58 1963 2.30 1964 2.83 1965 4.21 1966 4.52 1967 2.75 1968 4.64 1969 4.21 1970 7.02 1971 4.38 1972 3.37 1973 4.62 1974 3.63 1975 2.80 1976 3.90 1977 4.26 1978 2.97 1979 3.03 1980 3.60 1981 3.10 1982 3.87 1983 2.64 1984 4.49 1985 3.20 1986 2.61 1987 2.90 1988 6.51 1989 3.45 1990 4.27 1991 2.50 1992 3.69 1993 4.86 1994 2.58 1995 4.08 1996 2.22 1997 3.00 1998 9.75 1999 5.67 2000 Duration: 04d 3.28 1931 3.53 1932 6.97 1933 3.04 1934 5.66 1935 3.24 1936 2.31 1937 5.56 1938 3.95 1939 2.76 1940 2.76 1941 4.76 1942 3.68 1943 6.12 1944 7.91 1945 4.22 1946 4.50 1947 3.08 1948 2.38 1949 2.67 1950 3.32 1951 8.55 1952 3.21 1953 2.41 1954 5.87 1955 4.52 1956 2.38 1957 3.63 1958 4.88 1959 6.45 1960 3.50 1961 3.08 1962 3.91 1963 2.48 1964 2.89 1965 4.21 1966 4.81 1967 3.27 1968 4.94 1969 4.79 1970 10.46 1971 4.56 1972 3.66 1973 4.72 1974 4.19 1975 3.00 1976 4.37 1977 4.36 1978 4.04 1979 3.17 1980 3.60 1981 3.67 1982 3.88 1983 3.55 1984 4.49 1985 3.20 1986 2.73 1987 4.16 1988 6.75 1989 4.15 1990 4.43 1991 3.12 1992 3.70 1993 6.08 1994 2.58 1995 4.25 1996 2.90 1997 3.00 1998 9.75 1999 5.67 2000 Duration: 07d 4.21 1931 3.75 1932 7.21 1933 3.69 1934 6.10 1935 4.96 1936 3.71 1937 6.91 1938 4.55 1939 3.99 1940 3.62 1941 6.48 1942 3.76 1943 6.18 1944 9.95 1945 4.60 1946 5.39 1947 3.75 1948 3.42 1949 3.53 1950 5.57 1951 8.55 1952 5.23 1953 2.89 1954 8.00 1955 4.58 1956 2.92 1957 4.42 1958 6.12 1959 6.45 1960 4.04 1961 3.08 1962 4.97 1963 3.24 1964 4.97 1965 4.35 1966 5.41 1967 4.60 1968 5.34 1969 4.86 1970 10.73 1971 5.36 1972 5.82 1973 4.88 1974 5.82 1975 3.65 1976 5.25 1977 4.94 1978 5.21 1979 3.30 1980 4.25 1981 3.69 1982 4.61 1983 3.67 1984 5.49 1985 3.50 1986 4.22 1987 5.10 1988 6.75 1989 4.20 1990 4.68 1991 3.39 1992 3.80 1993 7.43 1994 3.23 1995 4.73 1996 2.93 1997 3.80 1998 11.02 1999 7.32 2000 Duration: 10d 4.39 1931 5.36 1932 7.97 1933 4.80 1934 6.60 1935 5.44 1936 3.95 1937 7.06 1938 4.55 1939 3.99 1940 3.80 1941 7.81 1942 4.92 1943 6.23 1944 10.78 1945 4.65 1946 7.44 1947 3.68 1948 4.49 1949 3.56 1950 5.67 1951 8.95 1952 5.23 1953 3.07 1954 8.99 1955 4.75 1956 3.37 1957 5.42 1958 6.17 1959 6.91 1960 4.24 1961 3.53 1962 5.01 1963 3.37 1964 4.97 1965 7.23 1966 6.96 1967 4.66 1968 5.76 1969 4.92 1970 10.73 1971 6.01 1972 5.82 1973 5.19 1974 6.07 1975 3.65 1976 5.89 1977 5.15 1978 6.13 1979 3.53 1980 4.25 1981 3.81 1982 6.91 1983 4.41 1984 6.10 1985 4.52 1986 4.58 1987 5.96 1988 8.04 1989 4.47 1990 5.12 1991 3.88 1992 5.47 1993 7.76 1994 4.53 1995 6.65 1996 3.36 1997 3.88 1998 11.22 1999 7.33 2000 Duration: 20d 7.95 1931 5.57 1932 10.24 1933 5.41 1934 7.64 1935 7.26 1936 6.16 1937 10.32 1938 5.80 1939 5.95 1940 5.27 1941 10.56 1942 6.91 1943 6.47 1944 13.60 1945 8.38 1946 9.70 1947 6.62 1948 5.56 1949 5.27 1950 6.85 1951 9.55 1952 5.85 1953 4.22 1954 10.73 1955 8.21 1956 4.78 1957 7.16 1958 7.17 1959 8.63 1960 5.83 1961 5.47 1962 5.13 1963 4.50 1964 5.96 1965 9.21 1966 9.97 1967 5.89 1968 7.29 1969 7.88 1970 17.55 1971 7.27 1972 7.23 1973 8.30 1974 9.30 1975 5.97 1976 7.54 1977 7.92 1978 7.51 1979 6.77 1980 6.12 1981 6.48 1982 8.92 1983 7.36 1984 6.97 1985 6.53 1986 6.14 1987 6.98 1988 14.00 1989 7.06 1990 7.47 1991 4.55 1992 7.92 1993 12.24 1994 7.43 1995 10.50 1996 4.26 1997 5.28 1998 13.36 1999 9.63 2000 Duration: 30d 9.13 1931 9.48 1932 13.53 1933 8.32 1934 9.94 1935 8.46 1936 8.47 1937 12.18 1938 7.43 1939 6.74 1940 5.66 1941 13.14 1942 7.51 1943 7.12 1944 16.47 1945 9.98 1946 11.24 1947 7.53 1948 7.21 1949 6.40 1950 7.70 1951 10.92 1952 7.71 1953 6.41 1954 11.16 1955 8.65 1956 6.66 1957 8.67 1958 8.87 1959 8.85 1960 7.06 1961 6.06 1962 7.59 1963 6.91 1964 7.02 1965 9.92 1966 13.10 1967 6.42 1968 8.68 1969 10.91 1970 17.98 1971 10.02 1972 9.08 1973 9.71 1974 10.97 1975 6.89 1976 9.56 1977 8.42 1978 8.85 1979 8.29 1980 6.42 1981 8.25 1982 12.07 1983 9.57 1984 8.04 1985 7.43 1986 7.34 1987 7.50 1988 14.86 1989 8.21 1990 8.83 1991 6.62 1992 9.46 1993 13.03 1994 9.65 1995 11.40 1996 5.84 1997 6.75 1998 16.56 1999 10.63 2000 Duration: 45d 11.84 1931 12.61 1932 14.48 1933 9.73 1934 11.20 1935 9.79 1936 9.73 1937 16.89 1938 9.43 1939 9.87 1940 8.29 1941 17.03 1942 9.45 1943 9.89 1944 20.19 1945 12.67 1946 12.83 1947 9.25 1948 9.67 1949 8.42 1950 9.82 1951 13.08 1952 9.96 1953 8.08 1954 11.60 1955 10.23 1956 7.47 1957 10.94 1958 9.92 1959 12.40 1960 10.08 1961 8.03 1962 8.93 1963 8.44 1964 8.87 1965 13.67 1966 16.22 1967 7.93 1968 12.24 1969 11.48 1970 22.78 1971 13.61 1972 11.09 1973 11.22 1974 14.88 1975 9.09 1976 11.22 1977 13.72 1978 12.07 1979 10.48 1980 8.94 1981 10.39 1982 14.84 1983 13.54 1984 9.86 1985 10.39 1986 8.75 1987 11.26 1988 17.87 1989 10.98 1990 11.03 1991 8.31 1992 13.30 1993 16.97 1994 13.43 1995 14.57 1996 7.01 1997 9.28 1998 19.60 1999 12.70 2000 Duration: 60d 14.72 1931 14.95 1932 17.45 1933 12.31 1934 14.39 1935 11.89 1936 11.07 1937 19.22 1938 12.22 1939 12.12 1940 9.16 1941 19.09 1942 11.69 1943 11.26 1944 23.35 1945 14.01 1946 15.36 1947 12.48 1948 11.61 1949 10.10 1950 13.76 1951 17.19 1952 11.60 1953 9.24 1954 13.41 1955 12.55 1956 9.64 1957 15.19 1958 13.32 1959 14.92 1960 11.05 1961 10.28 1962 10.46 1963 9.33 1964 10.71 1965 14.63 1966 21.19 1967 8.77 1968 14.45 1969 13.27 1970 24.45 1971 15.09 1972 13.21 1973 13.40 1974 16.98 1975 9.95 1976 13.77 1977 16.06 1978 15.87 1979 12.82 1980 10.38 1981 11.55 1982 16.82 1983 16.71 1984 13.30 1985 13.70 1986 10.10 1987 13.97 1988 20.86 1989 12.49 1990 15.53 1991 9.86 1992 15.06 1993 18.80 1994 16.57 1995 16.49 1996 9.36 1997 12.69 1998 22.78 1999 13.30 2000