Precipitation annual maximum series (inches) Station ID: 39-0350 Station name: ASHTON 2S State: SD Latitude (decimal degrees): 44.9633 Longitude (decimal degrees): -98.5114 Elevation (feet): 1280 Duration: 1 day 06/23/1925 1.85 07/23/1926 1.41 08/15/1927 1.25 07/07/1928 1.52 04/24/1929 1.73 09/07/1930 2.27 05/27/1931 2.27 08/11/1932 1.99 09/10/1933 1.47 10/16/1934 1.53 06/16/1935 3.10 07/27/1936 1.35 03/23/1937 1.31 09/05/1938 1.36 06/15/1939 2.63 06/23/1940 2.14 06/06/1941 1.96 05/13/1942 1.73 06/11/1943 1.20 08/25/1944 1.75 06/28/1952 3.38 07/28/1953 3.19 06/07/1954 2.66 07/07/1955 1.65 05/27/1956 1.99 04/19/1957 1.95 02/27/1958 1.62 09/22/1959 1.32 08/25/1960 1.64 10/11/1961 2.58 05/22/1962 2.18 07/26/1963 0.93 05/03/1964 2.35 05/15/1965 1.60 07/13/1966 4.28 04/12/1970 1.70 06/29/1971 1.62 07/08/1972 1.84 06/03/1973 1.45 05/21/1974 1.30 05/23/1975 1.18 06/24/1976 1.64 06/15/1977 2.15 06/30/1978 1.49 07/26/1979 1.67 07/04/1980 1.27 07/22/1981 1.05 10/09/1982 1.78 06/13/1983 2.40 08/21/1984 2.40 08/12/1985 1.48 05/09/1986 2.30 03/18/1987 1.60 05/21/1988 1.52 06/28/1989 2.01 06/28/1990 2.82 07/25/1993 3.60 07/07/1994 2.54 10/05/1995 1.62 09/20/1996 2.02 09/15/1997 4.10 10/17/1998 2.46 09/04/1999 2.65 08/05/2000 2.87 04/07/2001 1.67 07/03/2002 3.17 10/23/2004 1.63 06/12/2005 3.67 05/24/2006 1.63 Duration: 2 days 06/06/1925 2.47 10/03/1926 1.76 08/15/1927 1.35 06/11/1928 1.64 04/24/1929 1.86 09/06/1930 2.44 05/27/1931 2.44 08/11/1932 2.19 09/10/1933 1.58 10/16/1934 1.65 06/15/1935 3.92 07/27/1936 1.45 03/23/1937 1.66 04/27/1938 1.46 06/15/1939 2.83 06/23/1940 2.30 06/05/1941 2.22 05/12/1942 1.86 06/10/1943 1.85 08/25/1944 2.10 06/27/1952 5.16 07/28/1953 3.44 06/07/1954 2.86 07/07/1955 1.78 05/27/1956 2.22 04/19/1957 3.11 02/27/1958 1.90 09/22/1959 1.42 08/25/1960 1.77 10/10/1961 3.49 06/16/1962 3.11 06/06/1963 1.25 05/02/1964 2.53 05/14/1965 2.20 07/12/1966 4.61 04/12/1970 2.79 08/30/1971 1.79 05/01/1972 2.12 06/03/1973 1.56 05/20/1974 1.92 06/20/1975 1.93 06/24/1976 1.77 09/22/1977 2.41 06/30/1978 2.81 06/19/1979 1.86 10/16/1980 1.37 10/04/1981 1.20 10/09/1982 2.53 06/12/1983 2.58 08/03/1984 2.92 08/12/1985 1.59 05/08/1986 2.70 03/17/1987 2.25 05/21/1988 2.52 06/28/1989 2.16 07/27/1990 3.74 06/16/1992 3.86 07/25/1993 3.88 07/07/1994 3.41 06/06/1995 1.92 09/19/1996 3.12 09/15/1997 4.42 10/17/1998 2.65 09/03/1999 3.49 08/05/2000 3.29 09/14/2001 1.80 07/03/2002 3.41 10/23/2004 1.76 06/12/2005 3.95 05/24/2006 1.76 Duration: 3 days 06/05/1925 2.60 10/03/1926 1.78 04/13/1927 1.85 06/11/1928 1.77 04/24/1929 1.88 09/06/1930 2.48 05/27/1931 2.47 08/11/1932 2.21 07/05/1933 1.60 10/16/1934 1.66 06/15/1935 3.96 07/27/1936 1.47 03/23/1937 1.68 04/25/1938 1.73 06/15/1939 2.86 06/23/1940 2.33 06/05/1941 2.24 05/12/1942 1.88 06/10/1943 1.87 08/25/1944 2.12 06/27/1952 5.21 07/26/1953 4.84 06/07/1954 2.89 06/01/1955 2.15 05/27/1956 2.24 04/18/1957 3.56 02/27/1958 2.12 09/22/1959 1.44 08/23/1960 1.78 10/10/1961 3.52 06/16/1962 3.15 05/10/1963 1.46 05/02/1964 2.56 05/21/1965 2.35 07/12/1966 4.65 04/12/1970 2.82 08/30/1971 1.81 04/30/1972 2.64 10/10/1973 1.77 05/20/1974 2.01 06/19/1975 2.07 06/24/1976 1.78 09/22/1977 3.24 06/30/1978 2.84 06/19/1979 1.94 08/16/1980 1.73 07/20/1981 1.70 10/09/1982 2.61 06/12/1983 2.61 06/14/1984 3.33 08/12/1985 1.61 05/08/1986 2.73 03/17/1987 2.43 05/21/1988 2.62 06/26/1989 2.47 07/27/1990 3.78 07/25/1993 4.09 07/07/1994 3.53 06/05/1995 2.10 09/19/1996 3.59 09/15/1997 4.46 10/15/1998 2.70 09/02/1999 4.26 08/05/2000 3.32 09/14/2001 2.01 07/03/2002 3.45 10/23/2004 1.77 06/12/2005 5.09 05/24/2006 1.77 Duration: 4 days 06/05/1925 2.68 10/01/1926 2.06 04/12/1927 2.15 06/11/1928 1.79 04/24/1929 1.90 08/18/1930 2.79 05/27/1931 2.49 08/11/1932 2.23 07/05/1933 1.61 10/16/1934 1.77 06/15/1935 4.00 07/27/1936 1.48 03/23/1937 1.69 07/04/1938 1.98 06/15/1939 2.89 06/23/1940 2.35 06/05/1941 2.26 03/25/1942 2.50 06/10/1943 2.25 08/25/1944 2.14 06/25/1952 5.34 07/25/1953 5.15 06/07/1954 2.94 06/01/1955 2.30 07/30/1956 2.74 04/18/1957 3.59 02/27/1958 2.22 09/22/1959 1.59 08/23/1960 1.80 10/10/1961 3.56 06/14/1962 3.23 06/06/1963 1.47 04/30/1964 2.58 05/21/1965 2.69 07/12/1966 4.70 04/19/1968 4.35 04/12/1970 2.94 06/16/1971 1.92 05/27/1972 2.81 10/09/1973 1.80 05/20/1974 2.03 06/19/1975 2.09 06/24/1976 1.80 09/22/1977 3.27 06/30/1978 2.87 07/26/1979 2.18 08/16/1980 2.23 03/29/1981 1.87 10/07/1982 3.14 06/12/1983 2.64 06/14/1984 3.58 08/12/1985 1.63 05/08/1986 2.75 03/16/1987 2.48 05/19/1988 3.07 06/25/1989 2.73 07/25/1990 4.27 07/25/1993 4.13 07/07/1994 3.56 06/05/1995 2.27 09/19/1996 3.63 09/15/1997 4.50 10/15/1998 2.77 09/02/1999 4.30 08/05/2000 3.35 09/14/2001 2.03 07/03/2002 3.48 06/11/2004 1.79 06/12/2005 5.14 05/24/2006 1.79 Duration: 7 days 06/05/1925 3.88 10/01/1926 2.08 04/10/1927 2.57 06/11/1928 1.97 04/24/1929 1.92 05/06/1930 3.31 05/27/1931 2.52 08/11/1932 2.31 07/01/1933 2.31 10/16/1934 1.87 06/15/1935 4.34 07/27/1936 1.52 03/23/1937 1.71 04/27/1938 2.37 06/10/1939 4.10 06/23/1940 2.37 06/06/1941 3.88 05/12/1942 2.76 06/10/1943 2.27 08/19/1944 2.60 06/23/1952 8.37 07/25/1953 5.49 06/02/1954 2.97 07/07/1955 2.85 07/30/1956 3.07 04/18/1957 3.63 02/27/1958 2.24 09/18/1959 1.84 06/15/1960 2.77 05/14/1961 3.64 05/16/1962 5.15 06/01/1963 1.98 04/27/1964 3.11 05/20/1965 2.91 07/12/1966 4.75 04/12/1970 3.27 08/30/1971 3.43 05/23/1972 3.20 05/28/1973 1.89 05/15/1974 2.10 06/16/1975 2.69 06/24/1976 1.82 09/18/1977 3.88 06/26/1978 3.31 07/24/1979 2.41 08/13/1980 3.10 03/29/1981 2.06 10/06/1982 3.52 05/06/1983 2.66 06/10/1984 4.97 08/22/1985 2.75 05/08/1986 2.86 03/16/1987 2.75 05/19/1988 3.17 06/25/1989 2.76 07/22/1990 4.32 07/19/1993 4.76 07/07/1994 4.46 06/05/1995 3.36 09/19/1996 3.66 09/15/1997 4.55 05/11/1998 2.92 08/29/1999 5.63 08/05/2000 3.39 04/07/2001 2.69 07/03/2002 3.76 10/23/2004 2.57 06/08/2005 5.82 09/17/2006 1.81 Duration: 10 days 06/02/1925 4.37 10/01/1926 2.10 04/07/1927 3.16 06/11/1928 2.75 04/18/1929 1.94 05/04/1930 3.69 12/23/1931 2.54 06/08/1932 2.70 06/29/1933 2.48 06/05/1934 2.50 06/12/1935 4.39 07/19/1936 1.55 04/23/1937 1.89 04/25/1938 2.82 06/10/1939 4.14 06/17/1940 2.40 06/05/1941 4.17 05/10/1942 2.85 06/02/1943 2.45 08/19/1944 2.95 06/20/1952 8.66 07/25/1953 7.33 06/02/1954 3.25 05/26/1955 3.82 07/30/1956 4.26 05/13/1957 3.67 02/27/1958 2.31 09/18/1959 2.11 06/20/1960 2.80 05/14/1961 3.68 05/13/1962 6.01 07/24/1963 2.27 04/26/1964 3.27 05/14/1965 4.77 07/13/1966 4.79 04/12/1970 4.60 08/30/1971 3.46 05/22/1972 3.55 05/25/1973 3.22 05/20/1974 2.69 06/14/1975 2.88 06/15/1976 1.84 09/18/1977 3.92 06/23/1978 3.62 06/16/1979 2.47 08/13/1980 3.75 03/28/1981 2.08 10/01/1982 4.25 06/12/1983 3.21 06/08/1984 5.55 08/04/1985 2.99 04/18/1986 3.30 03/16/1987 3.59 09/19/1988 3.42 06/25/1989 2.78 07/19/1990 6.47 05/27/1991 6.74 07/16/1993 6.11 07/07/1994 5.30 06/02/1995 3.39 09/19/1996 5.03 09/07/1997 4.59 05/11/1998 2.95 08/26/1999 5.75 08/05/2000 3.42 07/19/2001 2.99 07/03/2002 3.82 10/23/2004 3.13 06/05/2005 6.30 08/05/2006 1.93 Duration: 20 days 06/05/1925 6.71 07/21/1926 2.61 04/04/1927 4.01 06/11/1928 3.17 08/21/1929 3.01 04/26/1930 4.51 05/27/1931 4.12 06/08/1932 3.90 06/20/1933 3.50 06/03/1934 3.48 06/11/1935 5.14 04/24/1936 2.03 05/30/1937 2.87 04/15/1938 3.74 06/10/1939 6.02 06/23/1940 3.23 05/27/1941 5.60 04/27/1942 4.85 06/10/1943 4.10 06/27/1944 3.10 06/23/1952 9.03 07/24/1953 8.71 05/26/1954 4.07 05/22/1955 5.57 07/30/1956 4.84 05/13/1957 4.64 05/31/1958 2.60 09/22/1959 2.89 06/15/1960 5.06 05/05/1961 4.26 05/11/1962 7.15 07/24/1963 3.40 04/21/1964 4.67 05/05/1965 5.63 07/12/1966 5.94 04/12/1970 4.63 06/10/1971 4.98 05/11/1972 6.30 05/25/1973 3.23 05/09/1974 4.45 06/02/1975 4.79 06/10/1976 3.14 02/23/1977 5.16 06/23/1978 4.28 07/24/1979 3.61 08/13/1980 4.01 07/20/1981 2.77 10/01/1982 4.44 06/12/1983 5.09 06/02/1984 7.70 07/24/1985 5.14 04/25/1986 5.40 03/12/1987 3.63 09/15/1988 4.38 06/12/1989 3.13 07/12/1990 7.03 05/16/1991 9.14 07/08/1993 7.81 07/07/1994 6.50 05/22/1995 4.54 09/10/1996 5.06 08/30/1997 4.68 10/03/1998 5.05 08/26/1999 6.08 07/18/2000 4.20 04/07/2001 3.55 06/21/2002 4.48 06/27/2004 3.81 06/03/2005 8.19 08/04/2006 2.54 Duration: 30 days 05/26/1925 7.55 07/23/1926 3.76 06/18/1927 4.93 06/11/1928 4.77 04/10/1929 3.40 08/18/1930 5.66 05/27/1931 4.64 05/31/1932 4.78 06/23/1933 3.85 05/28/1934 3.64 04/03/1935 6.81 06/28/1936 2.53 05/20/1937 3.80 04/06/1938 4.25 06/10/1939 6.22 06/23/1940 3.41 05/28/1941 6.18 04/25/1942 5.76 05/30/1943 5.50 06/26/1944 4.00 06/14/1952 9.90 07/17/1953 9.86 06/07/1954 5.42 05/23/1955 5.98 05/25/1956 5.76 05/13/1957 6.45 06/09/1958 3.83 09/18/1959 3.54 06/09/1960 5.48 09/12/1961 4.86 05/21/1962 9.73 05/10/1963 4.18 04/05/1964 5.59 05/14/1965 6.89 06/15/1966 6.93 03/23/1970 5.59 05/31/1971 6.03 04/30/1972 8.73 05/25/1973 3.70 05/08/1974 5.53 05/23/1975 6.55 06/10/1976 4.03 09/18/1977 5.46 06/23/1978 4.67 07/24/1979 4.73 07/28/1980 4.15 05/24/1981 3.42 09/12/1982 5.90 06/12/1983 5.49 06/05/1984 8.66 07/30/1985 6.62 04/14/1986 7.97 02/24/1987 5.12 05/19/1988 4.41 05/30/1989 3.31 06/28/1990 8.31 05/08/1991 10.18 06/30/1993 10.27 06/23/1994 6.76 06/06/1995 5.61 09/19/1996 5.87 09/15/1997 7.33 10/03/1998 6.54 08/29/1999 6.36 07/12/2000 4.83 04/07/2001 4.63 06/14/2002 4.66 06/09/2004 4.81 05/25/2005 9.20 08/04/2006 3.74 Duration: 45 days 05/26/1925 8.18 07/21/1926 4.49 06/09/1927 6.63 06/07/1928 5.60 08/21/1929 4.62 08/18/1930 6.74 05/09/1931 6.15 05/25/1932 6.17 06/07/1933 4.32 06/01/1934 4.69 03/20/1935 7.89 07/22/1936 3.31 04/30/1937 4.59 04/06/1938 5.26 05/20/1939 7.22 06/23/1940 4.28 05/28/1941 8.11 04/25/1942 6.33 05/23/1943 6.65 06/02/1944 5.55 06/14/1952 10.48 06/14/1953 11.58 05/26/1954 6.52 05/25/1955 7.45 07/04/1956 7.36 05/13/1957 8.66 05/07/1958 5.08 09/01/1959 4.48 05/18/1960 7.25 09/10/1961 5.04 05/11/1962 13.76 04/27/1963 5.14 04/05/1964 6.22 05/14/1965 8.43 07/12/1966 10.45 04/12/1970 6.07 05/21/1971 7.14 04/21/1972 9.64 08/31/1973 4.99 04/27/1974 5.97 05/10/1975 7.07 06/10/1976 4.68 02/23/1977 7.07 05/19/1978 6.62 07/15/1979 6.07 07/13/1980 5.21 05/16/1981 3.62 08/28/1982 7.36 06/13/1983 7.93 05/27/1984 10.41 07/31/1985 9.65 04/01/1986 9.64 02/16/1987 5.48 05/19/1988 5.05 08/11/1989 4.70 06/16/1990 12.29 04/27/1991 13.88 06/13/1993 12.73 07/07/1994 8.25 04/29/1995 7.43 09/19/1996 8.12 06/23/1997 7.93 05/11/1998 7.32 07/23/1999 8.98 06/25/2000 6.39 04/07/2001 6.20 07/03/2002 6.33 06/09/2004 6.35 05/09/2005 10.39 08/11/2006 4.86 Duration: 60 days 05/26/1925 8.63 06/23/1926 5.11 05/18/1927 7.99 06/07/1928 6.66 09/03/1929 5.49 08/18/1930 8.69 05/08/1931 6.87 05/07/1932 6.80 05/22/1933 5.76 05/28/1934 5.37 04/24/1935 10.14 07/13/1936 3.79 04/23/1937 5.81 04/06/1938 6.12 05/20/1939 7.59 06/23/1940 6.38 04/14/1941 8.75 03/25/1942 8.26 05/15/1943 6.66 06/27/1944 7.07 06/20/1952 11.34 06/14/1953 15.06 05/14/1954 7.44 05/17/1955 9.68 06/15/1956 10.20 04/18/1957 10.72 05/12/1958 6.28 05/20/1959 4.85 05/19/1960 7.96 08/18/1961 6.15 05/16/1962 15.73 04/16/1963 6.32 03/19/1964 6.99 03/27/1965 9.21 06/22/1966 12.31 04/02/1970 7.00 05/10/1971 7.38 04/27/1972 10.73 08/15/1973 5.79 04/12/1974 7.31 04/23/1975 9.25 05/21/1976 5.30 02/23/1977 8.64 05/08/1978 8.25 06/16/1979 6.64 07/04/1980 6.74 05/24/1981 5.55 08/24/1982 7.59 06/02/1983 8.62 06/06/1984 12.90 07/18/1985 11.64 04/14/1986 11.32 02/16/1987 6.02 08/02/1988 6.62 06/25/1989 6.34 06/02/1990 13.66 04/11/1991 16.87 05/30/1993 14.35 06/15/1994 9.66 04/12/1995 9.34 09/07/1996 8.52 07/19/1997 9.99 06/09/1998 8.70 07/16/1999 9.80 06/10/2000 8.56 04/21/2001 7.11 07/03/2002 7.49 05/09/2004 8.61 05/09/2005 11.37 07/27/2006 5.67