Precipitation annual maximum series (inches) Station ID: 11-6446 Station name: OLNEY State: IL Latitude (decimal degrees): 38.7006 Longitude (decimal degrees): 88.0836 Elevation (feet): 480 Duration: 01d 4.03 1890 3.35 1891 2.00 1892 3.07 1893 1.65 1894 3.28 1895 4.24 1896 3.22 1897 2.08 1898 1.68 1899 1.78 1900 3.02 1901 1.93 1902 2.14 1903 6.30 1904 4.60 1905 2.56 1906 3.04 1907 2.39 1908 2.71 1909 2.69 1910 4.43 1911 -9.99 1912 4.81 1913 1.81 1914 2.50 1915 2.83 1916 2.46 1917 2.17 1918 3.03 1919 2.15 1920 3.10 1921 1.89 1922 3.87 1923 4.12 1924 2.46 1925 6.43 1926 2.20 1927 2.76 1928 1.84 1929 1.88 1930 4.66 1931 2.25 1932 4.55 1933 3.06 1934 2.12 1935 2.87 1936 2.70 1937 2.50 1938 1.62 1939 1.63 1940 1.89 1941 1.44 1942 2.40 1943 2.34 1944 2.81 1945 2.67 1946 2.75 1947 3.36 1948 2.48 1949 2.66 1950 3.10 1951 2.13 1952 2.30 1953 2.70 1954 2.52 1955 1.29 1956 2.74 1957 2.79 1958 3.75 1959 2.53 1960 5.37 1961 2.35 1962 2.48 1963 3.63 1964 2.54 1965 2.26 1966 2.07 1967 1.74 1968 3.38 1969 1.97 1970 2.45 1971 1.80 1972 2.18 1973 1.45 1974 1.79 1975 1.40 1976 2.40 1977 3.12 1978 2.61 1979 2.68 1980 1.90 1981 3.95 1982 3.35 1983 3.12 1984 3.24 1985 2.05 1986 2.57 1987 2.46 1988 2.51 1989 2.58 1990 2.85 1991 1.97 1992 5.34 1993 1.70 1994 3.20 1995 3.15 1996 2.13 1997 2.64 1998 4.17 1999 3.73 2000 Duration: 02d 4.03 1890 5.98 1891 2.41 1892 4.18 1893 2.23 1894 3.29 1895 6.10 1896 5.63 1897 2.56 1898 1.81 1899 2.46 1900 3.02 1901 3.03 1902 2.30 1903 6.30 1904 5.54 1905 3.83 1906 3.09 1907 2.58 1908 3.32 1909 5.09 1910 4.43 1911 -9.99 1912 5.59 1913 2.97 1914 3.20 1915 4.88 1916 3.24 1917 3.60 1918 5.27 1919 2.40 1920 4.18 1921 2.69 1922 4.27 1923 4.12 1924 2.46 1925 6.43 1926 2.68 1927 3.52 1928 2.11 1929 2.58 1930 5.19 1931 3.88 1932 4.97 1933 3.32 1934 3.16 1935 3.17 1936 3.09 1937 2.69 1938 2.50 1939 1.97 1940 3.43 1941 1.67 1942 3.56 1943 3.84 1944 3.20 1945 4.57 1946 3.43 1947 3.36 1948 2.98 1949 4.21 1950 3.47 1951 2.50 1952 2.46 1953 3.20 1954 3.46 1955 1.47 1956 3.05 1957 2.92 1958 4.93 1959 2.53 1960 7.96 1961 3.14 1962 3.11 1963 4.01 1964 4.63 1965 2.99 1966 2.93 1967 2.16 1968 5.36 1969 2.14 1970 2.45 1971 2.37 1972 3.98 1973 2.76 1974 3.23 1975 1.60 1976 2.92 1977 3.41 1978 4.51 1979 3.50 1980 2.06 1981 4.17 1982 4.32 1983 3.77 1984 3.95 1985 2.11 1986 2.58 1987 3.02 1988 2.78 1989 3.06 1990 3.25 1991 3.40 1992 5.75 1993 2.36 1994 5.89 1995 4.08 1996 2.34 1997 4.04 1998 4.17 1999 4.11 2000 Duration: 04d 4.04 1890 6.92 1891 3.17 1892 5.01 1893 2.69 1894 3.44 1895 6.48 1896 6.20 1897 3.77 1898 2.07 1899 2.57 1900 3.57 1901 3.23 1902 2.56 1903 6.35 1904 5.58 1905 4.25 1906 3.74 1907 4.72 1908 3.32 1909 6.03 1910 4.43 1911 -9.99 1912 6.71 1913 4.09 1914 4.35 1915 5.63 1916 3.59 1917 4.24 1918 5.68 1919 2.99 1920 4.63 1921 3.06 1922 4.29 1923 4.12 1924 2.88 1925 7.54 1926 3.22 1927 3.62 1928 2.75 1929 3.56 1930 5.34 1931 3.90 1932 4.97 1933 3.78 1934 3.29 1935 3.59 1936 3.54 1937 4.06 1938 3.40 1939 2.97 1940 4.07 1941 2.50 1942 4.37 1943 3.84 1944 4.77 1945 5.60 1946 3.07 1947 4.46 1948 3.30 1949 5.19 1950 4.17 1951 2.50 1952 2.76 1953 3.76 1954 3.46 1955 1.79 1956 4.96 1957 3.55 1958 5.80 1959 3.68 1960 11.14 1961 3.24 1962 3.49 1963 4.53 1964 4.81 1965 4.14 1966 2.93 1967 2.80 1968 6.00 1969 2.92 1970 2.45 1971 3.31 1972 4.79 1973 3.02 1974 3.33 1975 2.37 1976 3.49 1977 3.93 1978 5.25 1979 3.50 1980 2.19 1981 4.68 1982 4.83 1983 3.90 1984 5.29 1985 2.23 1986 3.32 1987 3.70 1988 3.66 1989 3.56 1990 3.53 1991 3.90 1992 6.92 1993 3.83 1994 6.62 1995 5.64 1996 3.32 1997 4.04 1998 4.86 1999 5.68 2000 Duration: 07d 4.59 1890 6.94 1891 3.29 1892 6.03 1893 2.99 1894 3.44 1895 7.93 1896 7.67 1897 5.85 1898 3.56 1899 2.91 1900 5.25 1901 3.36 1902 3.40 1903 7.00 1904 6.36 1905 5.35 1906 4.64 1907 4.74 1908 3.39 1909 6.06 1910 5.19 1911 -9.99 1912 8.26 1913 4.98 1914 6.03 1915 5.63 1916 4.53 1917 5.70 1918 8.96 1919 3.19 1920 4.63 1921 4.22 1922 5.00 1923 4.86 1924 3.32 1925 7.83 1926 4.18 1927 3.62 1928 3.75 1929 5.44 1930 6.43 1931 4.27 1932 5.03 1933 4.07 1934 3.78 1935 3.59 1936 4.37 1937 4.83 1938 3.78 1939 3.09 1940 4.11 1941 2.70 1942 5.97 1943 5.06 1944 6.01 1945 6.10 1946 3.90 1947 5.09 1948 5.18 1949 5.55 1950 4.79 1951 3.21 1952 2.93 1953 4.06 1954 3.46 1955 2.47 1956 5.01 1957 6.32 1958 5.83 1959 3.76 1960 11.41 1961 3.24 1962 4.04 1963 5.97 1964 4.81 1965 5.12 1966 3.23 1967 3.03 1968 6.42 1969 4.63 1970 2.95 1971 4.18 1972 5.45 1973 4.20 1974 3.71 1975 2.71 1976 4.40 1977 3.93 1978 7.03 1979 5.32 1980 2.92 1981 5.11 1982 5.51 1983 4.18 1984 5.54 1985 2.37 1986 4.16 1987 4.07 1988 5.71 1989 3.95 1990 4.11 1991 4.30 1992 7.73 1993 3.93 1994 6.95 1995 7.14 1996 3.79 1997 4.70 1998 4.98 1999 6.11 2000 Duration: 10d 4.59 1890 8.10 1891 3.64 1892 6.86 1893 3.04 1894 3.96 1895 8.08 1896 8.66 1897 7.35 1898 3.64 1899 3.85 1900 5.33 1901 3.39 1902 3.44 1903 7.62 1904 7.60 1905 5.47 1906 5.71 1907 4.99 1908 4.80 1909 6.06 1910 6.02 1911 -9.99 1912 8.36 1913 5.46 1914 6.73 1915 6.20 1916 5.75 1917 6.07 1918 8.96 1919 3.61 1920 4.84 1921 4.60 1922 5.01 1923 4.90 1924 3.81 1925 8.10 1926 4.58 1927 4.28 1928 3.85 1929 6.35 1930 7.10 1931 5.50 1932 5.41 1933 6.32 1934 4.66 1935 4.27 1936 6.49 1937 5.41 1938 3.86 1939 4.13 1940 5.77 1941 3.25 1942 9.53 1943 5.39 1944 8.09 1945 6.27 1946 4.51 1947 6.58 1948 6.60 1949 6.73 1950 5.40 1951 4.46 1952 2.93 1953 4.31 1954 4.06 1955 2.75 1956 6.46 1957 8.19 1958 5.83 1959 4.67 1960 11.52 1961 3.52 1962 4.24 1963 6.11 1964 5.23 1965 5.12 1966 3.75 1967 4.09 1968 6.44 1969 5.57 1970 3.93 1971 6.16 1972 5.66 1973 4.88 1974 3.79 1975 2.89 1976 4.55 1977 3.93 1978 8.17 1979 5.32 1980 4.24 1981 6.06 1982 5.68 1983 4.53 1984 7.14 1985 3.72 1986 5.27 1987 4.43 1988 6.10 1989 5.37 1990 4.39 1991 4.37 1992 7.75 1993 4.29 1994 8.55 1995 9.20 1996 3.98 1997 5.93 1998 5.82 1999 6.97 2000 Duration: 20d 6.69 1890 10.85 1891 6.45 1892 12.03 1893 3.81 1894 5.42 1895 8.52 1896 10.91 1897 10.72 1898 4.23 1899 4.87 1900 5.52 1901 3.95 1902 4.87 1903 9.64 1904 8.66 1905 6.20 1906 7.12 1907 7.66 1908 6.42 1909 7.39 1910 9.71 1911 -9.99 1912 10.18 1913 7.49 1914 7.82 1915 8.59 1916 8.21 1917 8.97 1918 10.25 1919 5.02 1920 5.73 1921 7.76 1922 6.72 1923 6.75 1924 4.77 1925 10.95 1926 6.68 1927 6.26 1928 6.92 1929 8.05 1930 9.35 1931 6.65 1932 8.18 1933 7.05 1934 7.59 1935 6.09 1936 10.34 1937 7.91 1938 6.53 1939 6.39 1940 6.61 1941 5.52 1942 12.17 1943 8.42 1944 9.72 1945 10.72 1946 6.01 1947 7.82 1948 8.44 1949 9.39 1950 6.05 1951 6.06 1952 4.46 1953 4.98 1954 6.11 1955 4.05 1956 7.04 1957 10.13 1958 8.62 1959 6.93 1960 13.04 1961 4.49 1962 6.76 1963 6.72 1964 5.42 1965 8.26 1966 4.91 1967 5.69 1968 7.58 1969 6.57 1970 4.99 1971 7.36 1972 7.03 1973 7.09 1974 6.29 1975 3.77 1976 8.19 1977 6.33 1978 10.50 1979 6.47 1980 6.42 1981 6.87 1982 9.00 1983 6.83 1984 10.33 1985 3.91 1986 7.59 1987 6.57 1988 9.06 1989 7.49 1990 4.79 1991 5.67 1992 8.55 1993 6.40 1994 11.04 1995 16.41 1996 6.21 1997 7.55 1998 7.57 1999 10.69 2000 Duration: 30d 8.81 1890 12.23 1891 7.73 1892 14.21 1893 5.52 1894 6.11 1895 10.54 1896 13.11 1897 11.78 1898 4.87 1899 6.76 1900 6.37 1901 6.11 1902 5.68 1903 10.60 1904 8.94 1905 8.16 1906 9.87 1907 8.98 1908 9.11 1909 8.49 1910 14.11 1911 -9.99 1912 11.22 1913 9.13 1914 9.13 1915 10.29 1916 8.43 1917 12.26 1918 14.16 1919 5.80 1920 6.70 1921 9.72 1922 8.10 1923 8.49 1924 6.64 1925 12.20 1926 9.37 1927 7.24 1928 8.26 1929 8.38 1930 10.27 1931 9.95 1932 10.16 1933 10.68 1934 9.23 1935 7.41 1936 12.27 1937 10.79 1938 7.21 1939 7.40 1940 7.68 1941 7.06 1942 12.99 1943 10.07 1944 12.11 1945 11.56 1946 8.53 1947 8.29 1948 10.96 1949 11.96 1950 7.83 1951 7.66 1952 5.81 1953 5.23 1954 6.33 1955 4.25 1956 7.71 1957 12.96 1958 10.83 1959 7.56 1960 14.93 1961 5.78 1962 7.93 1963 8.23 1964 6.62 1965 8.37 1966 6.24 1967 6.89 1968 9.46 1969 7.29 1970 6.45 1971 7.86 1972 9.01 1973 9.18 1974 7.26 1975 4.45 1976 8.95 1977 7.88 1978 11.24 1979 7.35 1980 8.09 1981 10.52 1982 10.44 1983 9.17 1984 13.46 1985 5.61 1986 10.33 1987 6.78 1988 10.24 1989 8.90 1990 8.09 1991 6.62 1992 9.65 1993 8.16 1994 12.39 1995 17.86 1996 7.49 1997 9.85 1998 8.64 1999 12.50 2000 Duration: 45d 11.47 1890 14.03 1891 10.48 1892 17.48 1893 6.16 1894 8.15 1895 10.88 1896 17.19 1897 13.16 1898 6.63 1899 8.95 1900 6.74 1901 7.49 1902 7.93 1903 11.98 1904 10.00 1905 10.97 1906 13.45 1907 11.21 1908 10.58 1909 13.30 1910 15.45 1911 -9.99 1912 12.30 1913 11.55 1914 13.73 1915 12.49 1916 11.34 1917 13.11 1918 15.78 1919 8.31 1920 8.71 1921 13.08 1922 9.32 1923 11.80 1924 8.48 1925 17.01 1926 11.37 1927 9.62 1928 11.51 1929 9.55 1930 15.78 1931 10.82 1932 13.69 1933 13.83 1934 11.29 1935 8.20 1936 13.61 1937 13.03 1938 9.01 1939 9.10 1940 9.37 1941 8.06 1942 16.86 1943 11.30 1944 18.46 1945 12.90 1946 10.14 1947 10.45 1948 13.65 1949 16.71 1950 9.37 1951 9.36 1952 7.54 1953 6.40 1954 8.98 1955 5.64 1956 10.85 1957 15.25 1958 11.68 1959 10.30 1960 20.51 1961 7.01 1962 8.76 1963 8.97 1964 7.91 1965 9.58 1966 7.73 1967 9.49 1968 12.27 1969 8.78 1970 8.29 1971 9.48 1972 13.63 1973 11.89 1974 9.87 1975 6.17 1976 10.52 1977 10.03 1978 13.07 1979 8.30 1980 10.06 1981 12.06 1982 11.89 1983 11.89 1984 16.36 1985 6.89 1986 13.70 1987 9.08 1988 11.95 1989 12.11 1990 9.48 1991 7.78 1992 10.34 1993 10.16 1994 15.46 1995 20.73 1996 9.46 1997 13.44 1998 10.99 1999 15.18 2000 Duration: 60d 13.62 1890 15.00 1891 12.91 1892 19.84 1893 8.61 1894 8.85 1895 14.15 1896 18.60 1897 17.39 1898 7.69 1899 11.81 1900 7.62 1901 9.31 1902 9.19 1903 14.27 1904 11.07 1905 14.16 1906 15.89 1907 12.88 1908 12.17 1909 14.53 1910 16.29 1911 -9.99 1912 13.19 1913 12.93 1914 15.69 1915 14.96 1916 12.07 1917 14.26 1918 17.33 1919 9.28 1920 11.10 1921 15.09 1922 9.67 1923 13.23 1924 10.96 1925 19.20 1926 13.94 1927 11.05 1928 13.15 1929 11.56 1930 15.93 1931 12.23 1932 17.46 1933 15.96 1934 14.45 1935 8.30 1936 14.61 1937 14.99 1938 11.88 1939 10.31 1940 10.99 1941 10.19 1942 19.68 1943 12.76 1944 22.00 1945 13.90 1946 13.02 1947 12.67 1948 15.57 1949 19.81 1950 11.82 1951 9.67 1952 9.43 1953 8.59 1954 12.44 1955 7.37 1956 12.79 1957 18.44 1958 12.31 1959 13.22 1960 22.24 1961 9.35 1962 11.22 1963 10.61 1964 8.46 1965 10.55 1966 9.75 1967 11.45 1968 12.97 1969 12.37 1970 10.41 1971 11.02 1972 15.42 1973 12.93 1974 12.21 1975 7.91 1976 12.95 1977 12.14 1978 15.19 1979 10.28 1980 11.06 1981 13.33 1982 16.83 1983 15.41 1984 19.10 1985 9.07 1986 15.56 1987 11.63 1988 14.07 1989 13.51 1990 10.99 1991 10.44 1992 15.88 1993 11.63 1994 17.29 1995 25.89 1996 12.21 1997 16.68 1998 13.45 1999 20.22 2000