Precipitation annual maximum series (inches) Station ID: 36-9464 Station name: WEST CHESTER 1 W State: PA Latitude (decimal degrees): 39.9708 Longitude (decimal degrees): 75.6350 Elevation (feet): 375 Duration: 01d 3.76 1888 2.88 1889 1.82 1890 2.69 1891 2.41 1892 1.72 1893 5.56 1894 2.09 1895 3.88 1896 3.24 1897 2.23 1898 1.80 1899 4.85 1900 3.18 1901 2.65 1902 2.89 1903 3.05 1904 3.29 1905 1.92 1906 2.84 1907 5.34 1908 2.76 1909 1.65 1910 4.37 1911 2.87 1912 2.48 1913 -9.99 1914 2.81 1915 1.70 1916 2.66 1917 1.57 1918 3.60 1919 -9.99 1920 2.86 1921 1.79 1922 1.86 1923 2.85 1924 1.65 1925 1.65 1926 4.13 1927 4.80 1928 2.90 1929 2.00 1930 4.35 1931 2.95 1932 4.12 1933 2.50 1934 3.43 1935 3.41 1936 2.89 1937 4.54 1938 5.60 1939 3.10 1940 1.91 1941 3.77 1942 3.07 1943 3.90 1944 2.97 1945 2.62 1946 4.50 1947 2.15 1948 1.37 1949 5.94 1950 2.84 1951 2.61 1952 2.60 1953 1.85 1954 5.10 1955 2.24 1956 2.17 1957 2.30 1958 2.03 1959 3.23 1960 2.03 1961 3.58 1962 2.70 1963 2.65 1964 2.32 1965 2.85 1966 2.36 1967 3.65 1968 3.97 1969 2.83 1970 7.11 1971 4.56 1972 3.88 1973 2.19 1974 3.63 1975 2.83 1976 3.70 1977 3.50 1978 3.63 1979 2.15 1980 2.98 1981 2.74 1982 3.08 1983 2.33 1984 3.32 1985 1.83 1986 2.12 1987 2.33 1988 4.40 1989 2.54 1990 4.20 1991 -9.99 1992 -9.99 1993 -9.99 1994 -9.99 1995 -9.99 1996 -9.99 1997 -9.99 1998 6.20 1999 4.74 2000 Duration: 02d -9.99 1888 -9.99 1889 -9.99 1890 -9.99 1891 -9.99 1892 2.21 1893 9.03 1894 2.30 1895 3.88 1896 4.23 1897 3.59 1898 1.90 1899 4.89 1900 3.67 1901 4.68 1902 4.96 1903 5.05 1904 4.07 1905 2.98 1906 3.21 1907 6.32 1908 2.78 1909 3.21 1910 5.66 1911 3.98 1912 3.00 1913 -9.99 1914 3.47 1915 2.33 1916 2.81 1917 1.82 1918 5.73 1919 -9.99 1920 2.88 1921 3.23 1922 2.68 1923 4.10 1924 1.65 1925 2.50 1926 4.13 1927 5.25 1928 3.24 1929 2.30 1930 4.35 1931 2.95 1932 5.92 1933 3.15 1934 4.95 1935 3.41 1936 3.07 1937 4.62 1938 5.78 1939 3.10 1940 2.03 1941 3.97 1942 3.13 1943 5.07 1944 3.82 1945 3.25 1946 4.62 1947 2.73 1948 2.29 1949 5.94 1950 2.84 1951 3.73 1952 3.57 1953 2.12 1954 7.59 1955 2.75 1956 2.27 1957 3.05 1958 2.37 1959 5.97 1960 2.49 1961 4.78 1962 3.33 1963 3.15 1964 3.50 1965 3.33 1966 2.81 1967 4.96 1968 5.57 1969 3.42 1970 9.29 1971 5.48 1972 4.41 1973 2.55 1974 6.94 1975 2.94 1976 3.70 1977 3.52 1978 3.67 1979 2.72 1980 3.22 1981 2.75 1982 4.16 1983 3.42 1984 5.30 1985 2.31 1986 2.33 1987 2.52 1988 5.75 1989 2.91 1990 4.30 1991 -9.99 1992 -9.99 1993 -9.99 1994 -9.99 1995 -9.99 1996 -9.99 1997 -9.99 1998 8.26 1999 4.93 2000 Duration: 04d 2.77 1893 9.62 1894 2.72 1895 4.34 1896 5.07 1897 3.62 1898 2.21 1899 4.91 1900 4.52 1901 4.94 1902 5.62 1903 6.01 1904 4.08 1905 3.35 1906 3.37 1907 6.32 1908 2.78 1909 3.42 1910 6.27 1911 4.20 1912 3.62 1913 -9.99 1914 5.06 1915 3.02 1916 4.17 1917 2.74 1918 8.70 1919 -9.99 1920 2.97 1921 3.90 1922 2.69 1923 4.10 1924 2.14 1925 3.13 1926 4.13 1927 5.65 1928 4.16 1929 2.30 1930 5.90 1931 3.23 1932 7.63 1933 3.20 1934 6.51 1935 4.31 1936 4.05 1937 6.45 1938 6.27 1939 3.11 1940 2.61 1941 4.40 1942 3.71 1943 5.92 1944 4.17 1945 3.55 1946 4.75 1947 3.30 1948 2.65 1949 6.09 1950 3.32 1951 4.83 1952 3.74 1953 2.29 1954 8.52 1955 3.35 1956 2.47 1957 3.50 1958 3.89 1959 7.81 1960 3.05 1961 5.37 1962 3.68 1963 3.51 1964 3.52 1965 3.36 1966 3.34 1967 4.96 1968 5.83 1969 3.45 1970 12.38 1971 6.04 1972 4.41 1973 3.08 1974 9.03 1975 3.51 1976 4.15 1977 3.98 1978 4.01 1979 3.01 1980 3.22 1981 2.87 1982 4.34 1983 3.81 1984 5.30 1985 2.42 1986 2.40 1987 3.59 1988 6.49 1989 3.69 1990 4.30 1991 -9.99 1992 -9.99 1993 -9.99 1994 -9.99 1995 -9.99 1996 -9.99 1997 -9.99 1998 8.26 1999 4.93 2000 Duration: 07d 2.83 1893 11.87 1894 2.95 1895 4.79 1896 6.87 1897 3.65 1898 4.03 1899 5.38 1900 5.02 1901 6.77 1902 5.63 1903 6.01 1904 4.15 1905 5.29 1906 6.32 1907 6.32 1908 3.04 1909 3.46 1910 8.66 1911 4.26 1912 4.94 1913 -9.99 1914 5.87 1915 3.36 1916 5.22 1917 2.74 1918 11.45 1919 -9.99 1920 3.02 1921 5.58 1922 2.69 1923 4.10 1924 2.18 1925 3.80 1926 5.22 1927 6.65 1928 4.21 1929 3.12 1930 6.16 1931 3.65 1932 7.84 1933 3.72 1934 7.36 1935 5.53 1936 5.21 1937 7.18 1938 6.36 1939 3.75 1940 3.35 1941 7.12 1942 3.79 1943 5.97 1944 4.75 1945 4.78 1946 6.62 1947 3.62 1948 3.79 1949 6.55 1950 6.16 1951 4.90 1952 3.82 1953 3.14 1954 9.84 1955 3.75 1956 3.63 1957 4.40 1958 4.41 1959 7.81 1960 3.67 1961 5.47 1962 4.43 1963 4.37 1964 4.87 1965 3.79 1966 3.55 1967 5.51 1968 6.67 1969 3.65 1970 12.58 1971 6.57 1972 5.09 1973 3.18 1974 9.34 1975 3.84 1976 4.69 1977 4.22 1978 5.14 1979 3.28 1980 4.06 1981 3.41 1982 4.37 1983 4.40 1984 6.22 1985 3.84 1986 3.00 1987 4.74 1988 7.36 1989 4.06 1990 5.00 1991 -9.99 1992 -9.99 1993 -9.99 1994 -9.99 1995 -9.99 1996 -9.99 1997 -9.99 1998 9.42 1999 6.20 2000 Duration: 10d 3.45 1893 12.28 1894 2.95 1895 5.14 1896 7.77 1897 5.24 1898 4.03 1899 5.42 1900 5.14 1901 7.50 1902 6.01 1903 6.06 1904 4.76 1905 5.59 1906 6.63 1907 4.04 1908 3.84 1909 5.14 1910 8.89 1911 4.89 1912 5.02 1913 -9.99 1914 6.48 1915 3.49 1916 6.53 1917 3.23 1918 12.49 1919 -9.99 1920 3.13 1921 5.59 1922 3.52 1923 4.88 1924 2.84 1925 4.06 1926 6.03 1927 6.70 1928 4.21 1929 3.37 1930 6.34 1931 5.53 1932 8.69 1933 4.41 1934 7.86 1935 5.53 1936 5.48 1937 7.55 1938 6.36 1939 4.09 1940 3.39 1941 8.95 1942 5.37 1943 6.06 1944 5.42 1945 4.93 1946 7.85 1947 4.50 1948 4.18 1949 7.48 1950 6.16 1951 5.47 1952 4.15 1953 3.15 1954 12.15 1955 4.35 1956 4.31 1957 4.70 1958 4.63 1959 8.61 1960 3.83 1961 5.52 1962 4.68 1963 4.42 1964 4.92 1965 5.93 1966 3.83 1967 5.67 1968 7.77 1969 4.70 1970 14.50 1971 7.30 1972 5.09 1973 4.33 1974 10.68 1975 4.00 1976 4.85 1977 5.79 1978 5.27 1979 3.65 1980 4.07 1981 3.93 1982 5.32 1983 5.28 1984 6.96 1985 4.17 1986 3.77 1987 6.57 1988 7.84 1989 4.26 1990 5.05 1991 -9.99 1992 -9.99 1993 -9.99 1994 -9.99 1995 -9.99 1996 -9.99 1997 -9.99 1998 9.66 1999 6.22 2000 Duration: 20d 5.16 1893 14.52 1894 4.04 1895 6.80 1896 9.01 1897 6.73 1898 5.92 1899 6.19 1900 8.20 1901 11.22 1902 6.94 1903 6.64 1904 7.34 1905 7.65 1906 8.11 1907 9.82 1908 5.32 1909 6.30 1910 11.33 1911 7.55 1912 8.10 1913 -9.99 1914 8.15 1915 6.22 1916 8.99 1917 5.38 1918 14.51 1919 -9.99 1920 4.51 1921 6.04 1922 5.35 1923 5.94 1924 4.04 1925 6.14 1926 8.23 1927 12.33 1928 5.73 1929 3.87 1930 8.82 1931 7.29 1932 12.11 1933 5.71 1934 9.60 1935 7.58 1936 6.56 1937 9.56 1938 7.43 1939 6.13 1940 3.92 1941 11.37 1942 7.36 1943 6.19 1944 8.78 1945 8.49 1946 9.06 1947 6.81 1948 5.50 1949 9.18 1950 7.44 1951 6.83 1952 5.91 1953 4.08 1954 14.82 1955 5.91 1956 6.51 1957 7.20 1958 5.50 1959 9.66 1960 5.31 1961 6.39 1962 4.71 1963 5.69 1964 5.59 1965 7.26 1966 5.35 1967 6.40 1968 9.83 1969 6.03 1970 19.23 1971 8.90 1972 7.04 1973 5.71 1974 11.35 1975 5.03 1976 6.69 1977 9.15 1978 8.43 1979 6.63 1980 6.72 1981 7.03 1982 8.31 1983 8.08 1984 7.13 1985 6.77 1986 5.33 1987 7.04 1988 9.56 1989 5.45 1990 5.96 1991 -9.99 1992 -9.99 1993 -9.99 1994 -9.99 1995 -9.99 1996 -9.99 1997 -9.99 1998 12.53 1999 8.42 2000 Duration: 30d 7.85 1893 15.26 1894 5.25 1895 7.68 1896 9.77 1897 8.46 1898 8.00 1899 8.78 1900 9.58 1901 11.78 1902 9.29 1903 8.81 1904 9.15 1905 10.36 1906 9.72 1907 11.54 1908 6.82 1909 8.41 1910 12.75 1911 8.64 1912 8.87 1913 -9.99 1914 10.43 1915 6.68 1916 9.82 1917 6.91 1918 15.64 1919 -9.99 1920 5.66 1921 6.79 1922 7.06 1923 6.94 1924 5.10 1925 7.65 1926 10.88 1927 13.51 1928 8.24 1929 4.79 1930 9.20 1931 9.13 1932 13.52 1933 8.66 1934 10.35 1935 9.58 1936 8.09 1937 13.94 1938 8.72 1939 7.36 1940 5.45 1941 12.23 1942 8.30 1943 6.85 1944 11.66 1945 10.43 1946 10.09 1947 8.91 1948 7.80 1949 9.61 1950 8.26 1951 9.38 1952 7.63 1953 5.73 1954 16.02 1955 8.28 1956 7.49 1957 10.25 1958 6.89 1959 10.80 1960 6.36 1961 7.55 1962 6.98 1963 6.37 1964 6.26 1965 7.64 1966 7.84 1967 6.76 1968 11.26 1969 9.16 1970 21.38 1971 10.71 1972 9.70 1973 7.35 1974 12.77 1975 6.77 1976 8.52 1977 9.87 1978 10.82 1979 8.05 1980 7.55 1981 9.25 1982 11.19 1983 10.99 1984 7.49 1985 9.82 1986 6.30 1987 8.41 1988 9.92 1989 7.24 1990 7.56 1991 -9.99 1992 -9.99 1993 -9.99 1994 -9.99 1995 -9.99 1996 -9.99 1997 -9.99 1998 16.33 1999 10.01 2000 Duration: 45d 8.74 1893 16.97 1894 7.80 1895 10.16 1896 11.54 1897 11.57 1898 11.77 1899 9.95 1900 12.75 1901 13.41 1902 13.35 1903 12.48 1904 11.73 1905 13.41 1906 12.51 1907 14.12 1908 8.63 1909 9.87 1910 14.59 1911 11.25 1912 12.56 1913 -9.99 1914 12.02 1915 9.18 1916 13.57 1917 6.90 1918 21.66 1919 -9.99 1920 6.71 1921 9.74 1922 8.49 1923 9.50 1924 7.25 1925 9.63 1926 12.09 1927 15.36 1928 10.82 1929 7.23 1930 13.14 1931 13.84 1932 16.82 1933 10.69 1934 13.20 1935 12.04 1936 9.62 1937 16.63 1938 10.97 1939 10.18 1940 7.37 1941 13.38 1942 10.52 1943 9.10 1944 14.83 1945 12.85 1946 10.58 1947 10.84 1948 10.30 1949 11.53 1950 10.35 1951 12.50 1952 10.58 1953 7.00 1954 16.74 1955 10.41 1956 8.71 1957 13.28 1958 8.51 1959 14.02 1960 8.88 1961 8.53 1962 8.28 1963 7.41 1964 7.06 1965 10.49 1966 10.51 1967 8.23 1968 15.07 1969 10.02 1970 24.78 1971 13.49 1972 12.00 1973 8.71 1974 17.46 1975 9.90 1976 10.23 1977 14.63 1978 14.36 1979 10.28 1980 9.30 1981 12.63 1982 14.21 1983 15.35 1984 10.48 1985 12.02 1986 7.63 1987 11.91 1988 12.25 1989 9.64 1990 9.34 1991 -9.99 1992 -9.99 1993 -9.99 1994 -9.99 1995 -9.99 1996 -9.99 1997 -9.99 1998 18.71 1999 12.34 2000 Duration: 60d 9.58 1893 14.22 1894 9.24 1895 12.70 1896 12.34 1897 13.38 1898 14.58 1899 11.57 1900 15.17 1901 15.12 1902 14.95 1903 14.62 1904 13.41 1905 17.89 1906 15.17 1907 16.04 1908 9.78 1909 12.07 1910 16.90 1911 12.96 1912 14.73 1913 -9.99 1914 14.50 1915 10.69 1916 15.40 1917 9.39 1918 22.83 1919 -9.99 1920 7.29 1921 10.83 1922 10.87 1923 12.30 1924 8.36 1925 11.83 1926 14.65 1927 17.84 1928 12.62 1929 8.69 1930 16.06 1931 14.65 1932 20.27 1933 12.23 1934 18.07 1935 14.52 1936 11.70 1937 19.37 1938 12.41 1939 13.15 1940 8.16 1941 16.55 1942 11.81 1943 10.48 1944 17.11 1945 14.18 1946 12.40 1947 16.10 1948 12.25 1949 13.04 1950 14.71 1951 14.49 1952 11.78 1953 8.12 1954 17.75 1955 12.74 1956 11.44 1957 15.99 1958 11.03 1959 18.15 1960 10.68 1961 10.91 1962 8.96 1963 9.26 1964 9.58 1965 11.50 1966 13.78 1967 10.17 1968 16.30 1969 12.22 1970 26.78 1971 14.86 1972 13.30 1973 10.56 1974 21.30 1975 12.30 1976 11.66 1977 16.18 1978 16.99 1979 12.71 1980 11.57 1981 12.85 1982 16.25 1983 19.27 1984 12.22 1985 15.16 1986 8.82 1987 14.50 1988 14.99 1989 10.36 1990 9.86 1991 -9.99 1992 -9.99 1993 -9.99 1994 -9.99 1995 -9.99 1996 -9.99 1997 -9.99 1998 20.94 1999 13.09 2000