Precipitation annual maximum series (inches) Station ID: 11-0993 Station name: BROOKPORT DAM 52 State: IL Latitude (decimal degrees): 37.1275 Longitude (decimal degrees): 88.6531 Elevation (feet): 330 Duration: 01d 2.82 1929 2.40 1930 2.60 1931 4.35 1932 2.68 1933 4.45 1934 3.55 1935 3.00 1936 3.75 1937 4.64 1938 3.10 1939 2.00 1940 3.22 1941 4.70 1942 4.46 1943 3.57 1944 4.18 1945 3.14 1946 1.85 1947 3.46 1948 5.22 1949 3.50 1950 3.32 1951 2.73 1952 1.82 1953 3.45 1954 2.38 1955 2.72 1956 3.37 1957 3.76 1958 2.30 1959 2.08 1960 3.05 1961 4.26 1962 2.04 1963 2.20 1964 4.30 1965 3.49 1966 3.05 1967 3.10 1968 2.95 1969 2.35 1970 2.35 1971 2.43 1972 3.60 1973 1.68 1974 3.21 1975 2.77 1976 2.41 1977 2.41 1978 4.23 1979 3.00 1980 2.76 1981 2.87 1982 5.20 1983 2.87 1984 3.55 1985 2.39 1986 2.88 1987 3.80 1988 5.32 1989 3.15 1990 2.00 1991 2.45 1992 2.30 1993 1.89 1994 2.45 1995 3.40 1996 3.60 1997 3.50 1998 2.30 1999 3.23 2000 Duration: 02d 3.14 1929 3.49 1930 2.74 1931 5.65 1932 3.13 1933 4.94 1934 5.35 1935 3.86 1936 7.10 1937 4.64 1938 4.35 1939 2.07 1940 4.00 1941 5.09 1942 4.76 1943 3.62 1944 5.03 1945 3.34 1946 2.25 1947 3.46 1948 6.12 1949 5.40 1950 4.52 1951 3.30 1952 2.38 1953 3.51 1954 3.16 1955 2.80 1956 3.67 1957 4.59 1958 3.65 1959 3.26 1960 3.14 1961 5.92 1962 2.47 1963 2.29 1964 4.43 1965 5.42 1966 3.40 1967 3.45 1968 3.35 1969 3.06 1970 3.20 1971 2.81 1972 4.89 1973 2.25 1974 4.10 1975 2.77 1976 2.62 1977 3.91 1978 4.23 1979 3.03 1980 2.86 1981 4.35 1982 6.60 1983 4.10 1984 5.40 1985 3.80 1986 4.18 1987 4.81 1988 7.28 1989 4.15 1990 2.18 1991 2.50 1992 2.73 1993 2.51 1994 3.18 1995 5.15 1996 5.89 1997 4.22 1998 3.12 1999 4.63 2000 Duration: 04d 3.19 1929 5.03 1930 2.99 1931 5.65 1932 3.62 1933 5.01 1934 5.70 1935 4.04 1936 9.50 1937 5.74 1938 4.45 1939 2.61 1940 4.00 1941 5.20 1942 5.67 1943 4.07 1944 6.00 1945 3.57 1946 2.56 1947 4.66 1948 6.74 1949 6.14 1950 5.02 1951 4.32 1952 3.16 1953 3.56 1954 3.19 1955 3.95 1956 4.31 1957 5.32 1958 4.35 1959 3.30 1960 5.26 1961 6.35 1962 3.41 1963 2.30 1964 4.63 1965 5.57 1966 3.74 1967 4.20 1968 4.79 1969 3.32 1970 3.78 1971 3.54 1972 6.07 1973 2.67 1974 4.24 1975 3.38 1976 3.59 1977 3.91 1978 4.94 1979 3.03 1980 4.40 1981 4.92 1982 10.36 1983 4.99 1984 5.40 1985 6.18 1986 4.84 1987 5.26 1988 9.23 1989 4.15 1990 2.18 1991 3.41 1992 3.65 1993 2.93 1994 3.50 1995 5.15 1996 7.57 1997 4.47 1998 3.99 1999 4.63 2000 Duration: 07d 4.80 1929 6.58 1930 3.58 1931 5.81 1932 3.85 1933 5.08 1934 6.92 1935 4.04 1936 11.19 1937 5.79 1938 7.12 1939 2.85 1940 4.00 1941 5.20 1942 6.46 1943 4.41 1944 6.15 1945 3.77 1946 3.73 1947 5.06 1948 7.89 1949 6.24 1950 6.02 1951 4.32 1952 3.19 1953 3.56 1954 4.45 1955 5.51 1956 7.46 1957 6.44 1958 4.72 1959 5.38 1960 5.39 1961 6.43 1962 3.80 1963 3.39 1964 4.76 1965 6.08 1966 4.17 1967 5.31 1968 5.06 1969 4.65 1970 4.29 1971 4.24 1972 7.83 1973 2.99 1974 4.96 1975 3.66 1976 3.69 1977 7.53 1978 5.74 1979 4.41 1980 5.01 1981 6.00 1982 10.97 1983 5.55 1984 5.40 1985 6.54 1986 5.24 1987 5.39 1988 9.23 1989 7.00 1990 2.73 1991 3.70 1992 4.33 1993 3.13 1994 4.17 1995 5.15 1996 8.82 1997 6.93 1998 4.40 1999 4.79 2000 Duration: 10d 5.50 1929 7.14 1930 3.88 1931 7.02 1932 4.22 1933 5.78 1934 8.41 1935 5.19 1936 13.00 1937 6.10 1938 7.22 1939 4.66 1940 4.46 1941 5.20 1942 6.64 1943 4.48 1944 7.31 1945 5.87 1946 4.30 1947 5.06 1948 8.78 1949 6.74 1950 6.36 1951 4.82 1952 3.41 1953 4.53 1954 4.50 1955 5.87 1956 7.56 1957 8.57 1958 5.42 1959 5.88 1960 6.07 1961 6.46 1962 3.80 1963 4.09 1964 5.71 1965 6.08 1966 4.73 1967 5.83 1968 5.26 1969 5.03 1970 6.09 1971 5.27 1972 8.96 1973 3.14 1974 5.04 1975 3.75 1976 4.68 1977 7.53 1978 6.87 1979 4.44 1980 5.82 1981 7.47 1982 11.63 1983 6.29 1984 5.83 1985 6.59 1986 5.65 1987 5.87 1988 10.19 1989 7.92 1990 3.28 1991 4.09 1992 4.33 1993 3.43 1994 4.18 1995 5.45 1996 9.00 1997 7.44 1998 4.60 1999 4.82 2000 Duration: 20d 6.60 1929 8.41 1930 5.35 1931 9.05 1932 6.66 1933 8.16 1934 11.27 1935 6.67 1936 18.60 1937 7.71 1938 9.57 1939 5.71 1940 5.32 1941 9.50 1942 8.32 1943 6.11 1944 10.82 1945 8.42 1946 6.71 1947 6.62 1948 10.68 1949 10.74 1950 8.58 1951 7.12 1952 5.83 1953 5.31 1954 5.06 1955 7.79 1956 11.27 1957 11.72 1958 5.68 1959 6.26 1960 8.51 1961 9.00 1962 5.58 1963 6.39 1964 8.52 1965 9.42 1966 8.12 1967 7.99 1968 8.24 1969 7.48 1970 7.24 1971 6.19 1972 10.36 1973 5.21 1974 9.08 1975 6.95 1976 6.72 1977 11.04 1978 10.12 1979 4.65 1980 6.82 1981 9.53 1982 13.44 1983 9.51 1984 8.95 1985 8.38 1986 8.50 1987 8.08 1988 12.88 1989 9.40 1990 4.28 1991 4.81 1992 6.33 1993 5.07 1994 6.36 1995 9.52 1996 10.07 1997 8.39 1998 6.05 1999 5.81 2000 Duration: 30d 7.64 1929 9.36 1930 7.26 1931 10.47 1932 9.19 1933 8.77 1934 14.66 1935 8.16 1936 20.66 1937 9.44 1938 12.03 1939 6.98 1940 6.75 1941 10.70 1942 8.75 1943 8.10 1944 14.05 1945 10.07 1946 7.81 1947 7.92 1948 14.30 1949 13.86 1950 10.73 1951 7.57 1952 7.39 1953 7.85 1954 7.55 1955 9.92 1956 13.75 1957 13.47 1958 7.32 1959 6.58 1960 10.51 1961 11.72 1962 6.28 1963 7.50 1964 9.75 1965 11.91 1966 8.95 1967 9.49 1968 8.77 1969 9.42 1970 8.28 1971 8.96 1972 12.37 1973 6.25 1974 9.70 1975 7.39 1976 7.65 1977 14.87 1978 11.33 1979 7.36 1980 10.32 1981 11.32 1982 16.46 1983 10.84 1984 9.32 1985 9.49 1986 9.53 1987 9.45 1988 13.92 1989 13.06 1990 5.43 1991 6.59 1992 7.85 1993 6.80 1994 9.60 1995 10.72 1996 11.57 1997 11.72 1998 7.67 1999 7.45 2000 Duration: 45d 9.93 1929 10.83 1930 7.10 1931 13.27 1932 11.28 1933 12.00 1934 15.99 1935 9.08 1936 21.66 1937 11.96 1938 17.08 1939 9.73 1940 8.65 1941 12.29 1942 13.83 1943 10.35 1944 19.46 1945 10.87 1946 8.82 1947 9.69 1948 16.64 1949 20.62 1950 16.45 1951 9.81 1952 8.71 1953 9.01 1954 9.90 1955 10.88 1956 17.33 1957 19.11 1958 9.13 1959 9.73 1960 13.42 1961 12.65 1962 7.11 1963 9.27 1964 10.89 1965 17.52 1966 12.10 1967 11.78 1968 12.36 1969 14.04 1970 12.41 1971 11.06 1972 17.78 1973 7.60 1974 13.82 1975 9.74 1976 10.30 1977 16.45 1978 15.70 1979 8.14 1980 12.66 1981 14.39 1982 19.48 1983 13.16 1984 12.70 1985 10.49 1986 9.20 1987 13.62 1988 17.46 1989 14.14 1990 7.09 1991 7.94 1992 8.71 1993 9.21 1994 11.24 1995 14.11 1996 14.55 1997 15.61 1998 9.55 1999 9.60 2000 Duration: 60d 11.92 1929 12.49 1930 15.34 1931 16.15 1932 14.64 1933 13.66 1934 19.60 1935 11.43 1936 23.24 1937 13.91 1938 18.65 1939 10.95 1940 10.30 1941 12.88 1942 17.35 1943 13.32 1944 24.18 1945 11.57 1946 10.96 1947 13.01 1948 18.72 1949 23.98 1950 18.15 1951 11.23 1952 11.03 1953 9.62 1954 11.90 1955 12.77 1956 20.25 1957 20.74 1958 11.14 1959 10.95 1960 16.73 1961 13.90 1962 8.89 1963 11.43 1964 13.37 1965 17.95 1966 13.41 1967 14.09 1968 11.60 1969 16.56 1970 15.49 1971 14.12 1972 21.15 1973 9.21 1974 16.10 1975 12.24 1976 12.03 1977 18.13 1978 17.95 1979 9.11 1980 14.99 1981 15.28 1982 22.40 1983 14.18 1984 15.09 1985 13.54 1986 17.00 1987 13.87 1988 21.50 1989 15.52 1990 8.90 1991 9.71 1992 11.95 1993 11.42 1994 14.66 1995 16.93 1996 15.84 1997 16.89 1998 11.62 1999 10.75 2000