Precipitation annual maximum series (inches) Station ID: 11-6526 Station name: OTTAWA 4 SW State: IL Latitude (decimal degrees): 41.3283 Longitude (decimal degrees): 88.9106 Elevation (feet): 525 Duration: 01d 1.76 1889 2.11 1890 -9.99 1891 2.98 1892 1.83 1893 3.06 1894 2.09 1895 3.66 1896 3.57 1897 2.24 1898 3.07 1899 2.68 1900 2.36 1901 2.50 1902 2.03 1903 1.79 1904 2.10 1905 3.25 1906 1.73 1907 1.71 1908 1.50 1909 3.15 1910 2.35 1911 2.25 1912 1.86 1913 1.27 1914 1.70 1915 1.96 1916 1.76 1917 1.92 1918 -9.99 1919 1.70 1920 3.10 1921 2.00 1922 1.82 1923 6.61 1924 1.63 1925 4.87 1926 3.95 1927 2.06 1928 3.39 1929 2.28 1930 2.66 1931 3.88 1932 1.35 1933 1.55 1934 2.38 1935 3.30 1936 1.56 1937 2.00 1938 2.04 1939 1.45 1940 2.55 1941 3.53 1942 2.32 1943 1.79 1944 1.71 1945 1.86 1946 2.32 1947 3.65 1948 3.14 1949 2.81 1950 3.02 1951 1.35 1952 1.57 1953 2.19 1954 2.91 1955 1.93 1956 1.57 1957 8.77 1958 1.75 1959 1.71 1960 2.52 1961 1.35 1962 1.59 1963 1.75 1964 2.79 1965 2.51 1966 1.86 1967 2.72 1968 2.25 1969 2.46 1970 1.90 1971 2.97 1972 1.68 1973 3.20 1974 3.18 1975 1.83 1976 4.30 1977 2.46 1978 3.24 1979 2.65 1980 2.69 1981 3.61 1982 2.40 1983 2.18 1984 2.48 1985 2.48 1986 3.73 1987 1.72 1988 2.91 1989 2.54 1990 2.07 1991 2.82 1992 1.88 1993 2.04 1994 2.06 1995 3.50 1996 2.85 1997 2.15 1998 2.35 1999 2.25 2000 Duration: 02d 1.76 1889 2.53 1890 -9.99 1891 4.46 1892 2.39 1893 3.32 1894 3.69 1895 3.66 1896 3.57 1897 2.84 1898 3.81 1899 3.05 1900 2.57 1901 4.80 1902 2.68 1903 2.03 1904 2.31 1905 3.85 1906 2.44 1907 2.41 1908 1.73 1909 3.15 1910 3.10 1911 4.43 1912 2.03 1913 2.03 1914 1.93 1915 2.34 1916 1.98 1917 2.15 1918 -9.99 1919 2.74 1920 3.60 1921 2.53 1922 2.65 1923 6.61 1924 1.63 1925 5.66 1926 4.69 1927 3.09 1928 3.44 1929 2.28 1930 2.71 1931 4.48 1932 2.13 1933 1.78 1934 2.48 1935 3.30 1936 2.07 1937 2.90 1938 3.14 1939 1.79 1940 2.55 1941 3.82 1942 2.34 1943 2.94 1944 1.78 1945 1.86 1946 2.78 1947 3.65 1948 3.19 1949 3.82 1950 3.58 1951 2.02 1952 1.57 1953 3.13 1954 2.93 1955 2.78 1956 1.96 1957 8.79 1958 2.68 1959 2.31 1960 3.09 1961 1.35 1962 1.60 1963 2.22 1964 3.17 1965 3.72 1966 2.43 1967 4.20 1968 2.60 1969 3.36 1970 2.04 1971 3.06 1972 2.68 1973 3.83 1974 3.90 1975 2.17 1976 4.40 1977 4.37 1978 3.64 1979 4.95 1980 4.00 1981 3.61 1982 4.03 1983 2.30 1984 3.14 1985 2.81 1986 4.37 1987 1.72 1988 3.99 1989 2.80 1990 2.88 1991 3.04 1992 2.18 1993 2.74 1994 2.11 1995 3.70 1996 3.23 1997 2.96 1998 2.87 1999 2.61 2000 Duration: 04d 3.25 1889 2.84 1890 -9.99 1891 7.44 1892 2.88 1893 4.28 1894 4.89 1895 5.37 1896 3.75 1897 3.67 1898 4.47 1899 4.21 1900 2.64 1901 6.10 1902 3.32 1903 3.24 1904 2.39 1905 3.85 1906 3.23 1907 3.52 1908 1.92 1909 3.49 1910 3.25 1911 4.43 1912 3.01 1913 2.03 1914 2.51 1915 2.84 1916 1.98 1917 2.81 1918 -9.99 1919 2.74 1920 4.50 1921 3.05 1922 2.83 1923 8.15 1924 1.82 1925 6.40 1926 5.06 1927 3.30 1928 3.66 1929 2.36 1930 3.18 1931 4.80 1932 2.43 1933 2.31 1934 3.96 1935 3.36 1936 2.68 1937 3.12 1938 3.14 1939 1.89 1940 3.88 1941 3.84 1942 3.36 1943 3.30 1944 3.10 1945 2.32 1946 2.78 1947 4.13 1948 3.19 1949 5.08 1950 3.83 1951 2.75 1952 1.65 1953 3.44 1954 3.29 1955 3.56 1956 2.82 1957 9.36 1958 2.75 1959 2.88 1960 4.31 1961 2.27 1962 2.47 1963 2.83 1964 3.40 1965 3.85 1966 2.70 1967 5.07 1968 3.43 1969 5.22 1970 2.04 1971 4.06 1972 2.68 1973 4.14 1974 5.47 1975 3.02 1976 4.40 1977 4.37 1978 6.09 1979 4.99 1980 4.03 1981 3.82 1982 4.25 1983 2.45 1984 3.36 1985 4.23 1986 4.84 1987 1.87 1988 5.00 1989 3.50 1990 3.86 1991 3.53 1992 2.55 1993 2.79 1994 3.57 1995 4.90 1996 3.23 1997 4.08 1998 3.07 1999 2.72 2000 Duration: 07d 3.25 1889 3.95 1890 -9.99 1891 8.27 1892 3.02 1893 5.19 1894 5.14 1895 6.71 1896 6.58 1897 4.97 1898 4.47 1899 4.81 1900 4.67 1901 6.60 1902 5.04 1903 3.34 1904 3.09 1905 3.85 1906 3.94 1907 4.20 1908 2.30 1909 3.91 1910 3.49 1911 4.43 1912 3.61 1913 3.53 1914 3.65 1915 3.54 1916 2.13 1917 3.05 1918 -9.99 1919 3.18 1920 4.84 1921 3.10 1922 3.18 1923 9.17 1924 2.60 1925 7.22 1926 5.08 1927 3.56 1928 3.72 1929 3.63 1930 3.40 1931 4.82 1932 2.82 1933 2.78 1934 4.08 1935 4.65 1936 2.73 1937 4.27 1938 3.14 1939 2.42 1940 6.09 1941 3.84 1942 4.16 1943 3.44 1944 3.49 1945 3.55 1946 3.51 1947 4.93 1948 3.69 1949 5.42 1950 3.98 1951 2.80 1952 2.43 1953 4.24 1954 4.15 1955 3.69 1956 3.41 1957 9.39 1958 3.88 1959 3.07 1960 4.31 1961 2.95 1962 2.71 1963 3.98 1964 5.35 1965 4.68 1966 2.70 1967 5.41 1968 3.51 1969 5.66 1970 3.67 1971 5.15 1972 2.70 1973 4.79 1974 5.52 1975 4.11 1976 4.75 1977 4.84 1978 6.71 1979 5.03 1980 5.29 1981 5.65 1982 4.25 1983 3.61 1984 4.68 1985 4.97 1986 5.24 1987 2.69 1988 6.90 1989 4.14 1990 4.29 1991 3.65 1992 2.85 1993 3.81 1994 4.02 1995 5.26 1996 4.27 1997 4.65 1998 3.65 1999 3.33 2000 Duration: 10d 3.38 1889 5.36 1890 -9.99 1891 9.05 1892 3.60 1893 5.64 1894 5.49 1895 8.42 1896 6.63 1897 5.14 1898 4.52 1899 4.84 1900 4.67 1901 6.95 1902 5.26 1903 3.34 1904 3.34 1905 3.85 1906 4.40 1907 4.70 1908 3.31 1909 5.00 1910 3.95 1911 4.65 1912 3.92 1913 3.77 1914 4.48 1915 3.80 1916 2.35 1917 3.12 1918 -9.99 1919 3.57 1920 4.90 1921 4.10 1922 3.18 1923 9.19 1924 2.68 1925 7.52 1926 5.11 1927 4.40 1928 3.75 1929 4.13 1930 3.63 1931 5.66 1932 3.04 1933 3.16 1934 4.28 1935 4.72 1936 3.38 1937 6.13 1938 3.18 1939 2.71 1940 6.95 1941 3.99 1942 5.96 1943 3.48 1944 4.89 1945 4.33 1946 3.96 1947 4.94 1948 4.16 1949 5.52 1950 4.31 1951 3.20 1952 2.64 1953 4.53 1954 4.48 1955 4.20 1956 4.16 1957 9.52 1958 4.81 1959 3.72 1960 4.74 1961 3.02 1962 3.16 1963 4.00 1964 5.42 1965 5.26 1966 3.44 1967 5.41 1968 4.65 1969 7.87 1970 3.88 1971 6.39 1972 3.23 1973 5.89 1974 5.52 1975 4.11 1976 5.03 1977 4.94 1978 6.76 1979 5.57 1980 5.34 1981 7.15 1982 4.25 1983 3.76 1984 5.07 1985 5.62 1986 5.33 1987 3.45 1988 7.93 1989 4.87 1990 4.76 1991 5.53 1992 3.19 1993 4.33 1994 4.07 1995 5.55 1996 4.72 1997 6.32 1998 3.85 1999 3.61 2000 Duration: 20d 4.29 1889 6.58 1890 -9.99 1891 11.93 1892 5.22 1893 6.55 1894 5.60 1895 9.15 1896 8.60 1897 6.38 1898 5.72 1899 7.11 1900 4.87 1901 10.66 1902 7.57 1903 4.00 1904 4.64 1905 4.92 1906 6.60 1907 6.70 1908 3.97 1909 6.16 1910 6.08 1911 7.18 1912 5.61 1913 3.89 1914 5.41 1915 6.69 1916 2.66 1917 4.30 1918 -9.99 1919 4.83 1920 5.83 1921 6.00 1922 4.29 1923 11.63 1924 3.16 1925 10.18 1926 6.52 1927 6.96 1928 5.18 1929 4.57 1930 5.23 1931 6.25 1932 4.73 1933 4.70 1934 6.02 1935 8.20 1936 4.96 1937 7.05 1938 5.72 1939 4.51 1940 10.14 1941 6.37 1942 8.18 1943 6.01 1944 7.59 1945 4.73 1946 6.62 1947 5.91 1948 5.63 1949 8.40 1950 6.93 1951 5.12 1952 3.67 1953 6.05 1954 6.77 1955 4.75 1956 4.75 1957 12.38 1958 7.63 1959 5.89 1960 8.92 1961 4.61 1962 4.22 1963 4.44 1964 7.37 1965 6.82 1966 5.71 1967 6.00 1968 5.51 1969 9.67 1970 4.61 1971 9.23 1972 5.64 1973 7.32 1974 7.70 1975 5.97 1976 8.97 1977 5.60 1978 8.27 1979 7.39 1980 7.35 1981 9.44 1982 5.99 1983 4.63 1984 9.47 1985 9.32 1986 7.09 1987 4.34 1988 9.19 1989 6.82 1990 5.89 1991 8.11 1992 5.08 1993 5.09 1994 6.02 1995 6.88 1996 4.99 1997 7.33 1998 4.64 1999 6.37 2000 Duration: 30d 6.01 1889 8.57 1890 -9.99 1891 12.98 1892 6.00 1893 7.16 1894 7.02 1895 10.18 1896 9.23 1897 7.43 1898 7.51 1899 7.39 1900 5.48 1901 14.72 1902 8.44 1903 5.52 1904 6.39 1905 5.56 1906 7.93 1907 8.49 1908 5.19 1909 8.73 1910 7.58 1911 8.11 1912 6.84 1913 4.43 1914 7.96 1915 8.39 1916 3.03 1917 5.64 1918 -9.99 1919 7.78 1920 6.87 1921 6.39 1922 4.81 1923 13.19 1924 4.22 1925 14.28 1926 7.13 1927 7.13 1928 7.50 1929 4.81 1930 6.45 1931 8.06 1932 5.47 1933 4.88 1934 7.46 1935 9.41 1936 5.94 1937 8.88 1938 8.23 1939 5.20 1940 11.05 1941 8.10 1942 11.41 1943 7.33 1944 8.19 1945 5.60 1946 9.15 1947 7.43 1948 7.14 1949 9.90 1950 7.77 1951 6.11 1952 5.13 1953 7.45 1954 7.52 1955 5.89 1956 7.15 1957 14.82 1958 7.69 1959 7.07 1960 11.76 1961 5.22 1962 5.79 1963 5.98 1964 10.50 1965 8.95 1966 7.17 1967 7.94 1968 8.30 1969 12.48 1970 5.54 1971 10.76 1972 5.88 1973 8.44 1974 9.29 1975 6.47 1976 10.57 1977 6.13 1978 9.27 1979 8.07 1980 10.12 1981 12.16 1982 7.94 1983 5.60 1984 9.66 1985 9.44 1986 9.33 1987 4.64 1988 10.35 1989 9.67 1990 8.70 1991 9.79 1992 7.32 1993 6.22 1994 7.48 1995 8.19 1996 5.91 1997 9.50 1998 5.73 1999 9.01 2000 Duration: 45d 8.19 1889 10.45 1890 -9.99 1891 16.01 1892 7.51 1893 8.33 1894 10.32 1895 11.06 1896 9.62 1897 11.66 1898 8.63 1899 10.16 1900 6.30 1901 18.45 1902 10.51 1903 7.93 1904 8.33 1905 8.19 1906 9.91 1907 11.19 1908 7.00 1909 9.96 1910 9.87 1911 8.86 1912 7.84 1913 5.66 1914 9.34 1915 10.29 1916 4.36 1917 6.55 1918 -9.99 1919 9.47 1920 9.01 1921 7.04 1922 6.24 1923 15.58 1924 5.38 1925 15.53 1926 9.70 1927 8.48 1928 9.32 1929 5.87 1930 8.40 1931 9.42 1932 7.86 1933 6.56 1934 10.09 1935 11.92 1936 7.67 1937 11.19 1938 10.11 1939 6.28 1940 14.37 1941 9.46 1942 14.56 1943 10.58 1944 11.08 1945 7.72 1946 11.56 1947 8.89 1948 9.24 1949 10.72 1950 9.44 1951 7.94 1952 7.28 1953 10.58 1954 9.71 1955 6.73 1956 9.02 1957 20.03 1958 9.97 1959 8.10 1960 12.36 1961 6.42 1962 6.99 1963 8.56 1964 11.89 1965 10.60 1966 8.86 1967 8.74 1968 9.77 1969 16.88 1970 6.50 1971 14.71 1972 8.69 1973 12.98 1974 11.61 1975 7.80 1976 13.78 1977 8.66 1978 10.93 1979 10.45 1980 12.42 1981 13.74 1982 9.64 1983 7.57 1984 12.08 1985 10.94 1986 12.20 1987 5.75 1988 10.70 1989 13.22 1990 9.90 1991 10.50 1992 9.16 1993 8.36 1994 9.92 1995 10.15 1996 7.44 1997 12.01 1998 8.31 1999 11.36 2000 Duration: 60d 9.23 1889 11.12 1890 -9.99 1891 23.64 1892 8.86 1893 8.76 1894 11.05 1895 15.48 1896 10.18 1897 12.91 1898 9.56 1899 11.90 1900 8.66 1901 21.04 1902 11.22 1903 9.38 1904 9.81 1905 9.66 1906 12.52 1907 12.00 1908 8.62 1909 10.64 1910 12.04 1911 10.75 1912 9.21 1913 7.30 1914 10.64 1915 11.42 1916 5.55 1917 7.43 1918 -9.99 1919 12.11 1920 13.25 1921 9.94 1922 7.93 1923 18.30 1924 7.31 1925 21.55 1926 12.90 1927 9.56 1928 9.66 1929 7.54 1930 9.80 1931 10.44 1932 9.62 1933 7.25 1934 12.26 1935 13.26 1936 8.72 1937 14.48 1938 12.64 1939 7.94 1940 16.86 1941 13.06 1942 15.83 1943 12.22 1944 13.37 1945 10.24 1946 15.57 1947 9.28 1948 11.52 1949 11.48 1950 10.60 1951 9.64 1952 8.26 1953 11.04 1954 12.85 1955 9.12 1956 11.14 1957 21.97 1958 10.62 1959 10.37 1960 14.68 1961 7.41 1962 8.55 1963 8.95 1964 13.14 1965 11.78 1966 10.29 1967 9.73 1968 11.81 1969 20.83 1970 7.10 1971 15.75 1972 10.26 1973 15.30 1974 13.47 1975 9.96 1976 16.48 1977 9.30 1978 12.92 1979 11.36 1980 13.17 1981 16.77 1982 11.25 1983 9.40 1984 13.99 1985 14.36 1986 14.27 1987 6.87 1988 13.54 1989 14.74 1990 12.92 1991 13.80 1992 12.13 1993 8.74 1994 13.48 1995 12.80 1996 8.43 1997 13.36 1998 10.74 1999 12.76 2000