Precipitation annual maximum series (inches) Station ID: 39-6907 Station name: RALPH 1 N State: SD Latitude (decimal degrees): 45.7842 Longitude (decimal degrees): -103.0656 Elevation (feet): 2790 Duration: 1 day 06/27/1942 1.43 06/02/1943 1.84 06/22/1944 2.33 06/26/1945 0.65 05/23/1946 1.55 06/21/1947 1.21 10/01/1949 1.15 08/12/1950 1.02 05/08/1952 1.13 06/15/1953 2.20 05/27/1954 1.25 09/20/1955 2.35 08/27/1956 2.40 06/22/1957 2.37 06/09/1958 1.61 06/25/1959 0.82 08/05/1960 1.32 09/12/1961 1.12 06/12/1962 2.30 08/27/1963 0.90 06/08/1964 2.76 05/09/1965 1.23 06/04/1966 1.15 04/30/1967 1.65 06/13/1968 0.83 06/07/1969 1.56 06/12/1970 1.33 09/05/1971 1.33 05/26/1972 2.60 07/03/1974 0.94 04/28/1975 2.06 06/14/1976 3.00 07/06/1977 1.53 06/25/1978 1.53 08/21/1979 1.71 05/31/1981 0.87 10/09/1982 2.00 05/12/1983 1.28 10/06/1984 1.73 05/26/1985 1.06 05/09/1986 1.42 03/21/1987 1.77 06/16/1988 2.51 04/27/1989 1.90 06/17/1990 1.03 04/26/1991 1.07 07/29/1992 1.11 06/29/1993 2.32 10/06/1994 1.72 06/21/1995 1.46 09/18/1996 1.85 06/30/1997 1.70 06/17/1998 1.35 08/12/1999 1.20 05/07/2000 1.40 07/16/2001 1.40 Duration: 2 days 06/27/1942 1.54 06/02/1943 2.60 06/22/1944 2.75 06/05/1945 0.90 05/23/1946 1.67 06/21/1947 2.31 07/12/1949 1.65 08/12/1950 1.10 05/08/1952 1.22 06/14/1953 2.40 05/26/1954 1.59 09/20/1955 2.96 08/27/1956 2.58 06/21/1957 2.72 06/09/1958 1.73 06/25/1959 1.09 08/05/1960 1.68 09/11/1961 1.21 06/12/1962 2.48 06/22/1963 1.23 06/08/1964 4.02 05/24/1965 1.73 06/04/1966 1.53 04/30/1967 2.15 06/13/1968 0.96 06/06/1969 1.70 05/08/1970 1.43 09/04/1971 2.30 05/25/1972 2.93 07/03/1974 1.01 04/28/1975 2.50 06/14/1976 3.23 07/06/1977 2.33 05/30/1978 1.77 08/21/1979 1.84 09/24/1981 1.01 10/08/1982 3.01 05/11/1983 1.55 04/26/1984 2.05 05/25/1985 1.16 05/08/1986 2.43 05/20/1987 2.12 06/16/1988 3.26 04/27/1989 3.33 06/16/1990 1.12 04/26/1991 1.15 06/15/1992 1.32 06/29/1993 2.50 07/05/1994 2.36 06/21/1995 2.13 09/17/1996 1.99 06/29/1997 2.07 06/17/1998 2.37 08/11/1999 1.37 10/31/2000 1.68 07/15/2001 1.51 Duration: 3 days 06/27/1942 1.57 06/02/1943 2.65 06/22/1944 2.78 06/04/1945 1.29 10/04/1946 1.69 06/20/1947 2.46 07/12/1949 1.67 08/12/1950 1.11 05/06/1952 1.40 06/13/1953 2.50 05/26/1954 1.72 09/20/1955 3.24 08/27/1956 2.61 06/07/1957 2.76 06/09/1958 1.75 06/25/1959 1.10 08/04/1960 1.75 09/10/1961 1.34 06/12/1962 2.50 06/21/1963 1.54 06/07/1964 4.12 05/23/1965 1.90 06/22/1966 1.62 06/11/1967 2.69 06/13/1968 1.10 06/06/1969 1.72 06/10/1970 1.57 09/04/1971 2.32 05/26/1972 3.44 07/03/1974 1.02 04/27/1975 2.64 06/12/1976 3.31 07/05/1977 2.51 07/19/1978 1.85 08/21/1979 1.86 05/31/1981 1.52 10/08/1982 3.40 05/11/1983 1.57 04/25/1984 2.70 05/25/1985 1.17 05/07/1986 2.92 05/20/1987 2.14 06/16/1988 3.29 04/26/1989 4.12 06/15/1990 1.33 04/26/1991 1.35 06/28/1992 2.00 06/29/1993 2.67 07/05/1994 2.41 05/06/1995 2.20 09/18/1996 2.15 06/29/1997 2.43 10/03/1998 2.71 08/11/1999 1.38 10/31/2000 1.70 06/29/2001 1.52 Duration: 4 days 06/24/1942 1.79 06/02/1943 3.07 06/22/1944 2.80 06/04/1945 1.31 10/04/1946 1.90 06/20/1947 2.48 07/10/1949 1.89 08/12/1950 1.12 05/06/1952 1.42 06/13/1953 2.52 05/26/1954 1.74 09/19/1955 3.30 08/27/1956 2.76 06/07/1957 2.83 06/09/1958 1.77 06/25/1959 1.11 08/05/1960 1.88 09/10/1961 1.39 06/12/1962 3.50 06/20/1963 1.69 06/08/1964 4.80 05/22/1965 2.05 06/22/1966 1.64 06/11/1967 2.72 06/21/1968 1.28 06/23/1969 1.92 05/08/1970 1.86 09/04/1971 2.35 05/25/1972 3.77 07/03/1974 1.03 04/27/1975 2.78 06/12/1976 3.34 06/09/1977 2.87 07/19/1978 1.87 07/23/1979 1.88 05/31/1981 1.53 10/08/1982 3.46 05/09/1983 2.17 04/24/1984 2.95 05/26/1985 1.26 05/07/1986 2.95 05/17/1987 2.35 06/14/1988 3.41 04/26/1989 4.16 06/14/1990 1.40 05/28/1991 1.58 06/13/1992 2.27 06/29/1993 2.70 07/05/1994 2.43 05/06/1995 2.74 05/23/1996 2.97 06/28/1997 2.46 10/02/1998 2.81 08/11/1999 1.44 10/29/2000 2.54 07/16/2001 1.70 Duration: 7 days 06/24/1942 1.93 05/30/1943 3.50 06/22/1944 3.84 05/31/1945 1.75 05/18/1946 2.27 06/17/1947 3.04 07/07/1949 2.09 04/28/1950 1.23 05/06/1952 1.43 06/14/1953 4.67 05/23/1954 2.77 09/19/1955 3.39 08/27/1956 2.97 06/03/1957 3.89 06/09/1958 3.21 06/25/1959 1.91 08/02/1960 2.00 09/10/1961 1.40 05/15/1962 3.60 05/31/1963 2.01 06/06/1964 5.25 06/29/1965 2.70 06/20/1966 1.85 06/08/1967 3.08 06/20/1968 1.67 06/22/1969 2.30 05/08/1970 2.72 05/30/1971 2.68 05/25/1972 3.81 04/23/1975 3.02 06/12/1976 3.50 06/09/1977 3.60 06/25/1978 2.89 08/21/1979 2.34 05/27/1981 1.84 05/14/1982 4.86 05/06/1983 3.02 04/24/1984 2.98 06/21/1985 1.75 05/05/1986 2.98 05/20/1987 2.94 06/12/1988 3.94 04/26/1989 4.23 06/15/1990 1.65 05/26/1991 1.88 06/13/1992 2.37 06/29/1993 3.20 07/01/1994 2.66 05/06/1995 2.77 05/23/1996 3.09 06/24/1997 2.50 10/02/1998 2.84 08/07/1999 2.55 07/14/2000 2.70 07/15/2001 2.10 Duration: 10 days 04/18/1942 2.02 06/25/1943 3.82 06/18/1944 3.97 05/31/1945 1.85 05/14/1946 2.92 06/18/1947 3.44 10/01/1949 2.15 08/04/1950 1.62 05/06/1952 1.69 06/13/1953 4.77 05/23/1954 2.80 09/19/1955 3.42 08/27/1956 3.38 06/03/1957 3.96 06/09/1958 3.24 06/25/1959 2.15 08/02/1960 2.02 09/12/1961 2.28 05/18/1962 4.46 06/15/1963 2.43 06/06/1964 5.30 06/29/1965 2.96 06/22/1966 2.54 06/04/1967 4.57 06/20/1968 2.21 06/22/1969 2.32 05/08/1970 2.75 05/29/1971 3.46 05/20/1972 3.95 04/11/1974 1.44 04/28/1975 3.26 06/05/1976 4.16 06/09/1977 3.96 06/25/1978 2.93 08/21/1979 2.36 05/24/1981 1.94 05/12/1982 5.12 05/06/1983 3.05 06/06/1984 3.31 05/25/1985 1.84 04/30/1986 3.09 05/17/1987 3.52 06/12/1988 3.98 04/26/1989 4.43 06/14/1990 1.72 06/20/1991 2.20 06/28/1992 2.49 07/18/1993 3.77 06/29/1994 2.86 04/30/1995 3.09 05/17/1996 4.08 06/24/1997 2.86 10/02/1998 3.52 08/07/1999 2.62 07/10/2000 3.48 07/16/2001 2.79 Duration: 20 days 07/16/1942 3.24 05/30/1943 6.68 06/04/1944 6.25 05/18/1945 2.45 05/14/1946 4.09 06/03/1947 4.92 10/01/1949 2.85 04/28/1950 1.75 05/06/1952 2.02 06/06/1953 5.44 05/23/1954 4.01 09/19/1955 3.43 08/16/1956 4.10 06/03/1957 7.83 05/31/1958 3.63 06/16/1959 2.95 08/05/1960 2.96 09/05/1961 2.61 05/13/1962 6.58 06/06/1963 3.61 06/06/1964 8.05 05/08/1965 3.91 06/14/1966 2.98 05/30/1967 5.62 06/13/1968 3.44 06/07/1969 3.85 05/08/1970 3.64 05/29/1971 4.67 05/09/1972 5.48 04/11/1974 1.80 04/21/1975 5.11 06/14/1976 6.01 05/27/1977 4.90 06/17/1978 3.62 07/12/1979 3.12 05/27/1981 2.93 05/09/1982 5.88 07/15/1983 3.54 06/06/1984 4.24 05/11/1985 2.19 04/23/1986 4.07 05/02/1987 4.02 06/12/1988 5.04 04/26/1989 4.61 06/07/1990 2.17 05/12/1991 2.73 06/13/1992 4.59 06/29/1993 7.18 06/01/1994 3.21 05/08/1995 3.97 05/14/1996 4.88 06/11/1997 3.38 06/06/1998 4.51 04/21/1999 2.78 07/09/2000 3.81 07/13/2001 3.42 Duration: 30 days 06/27/1942 4.07 06/02/1943 8.30 06/12/1944 7.73 05/13/1945 3.26 05/14/1946 5.42 06/03/1947 5.80 10/01/1949 2.85 07/15/1950 2.45 06/24/1952 2.14 05/22/1953 7.83 05/23/1954 4.84 08/28/1955 3.56 08/03/1956 4.93 06/03/1957 8.68 06/09/1958 4.41 06/16/1959 3.59 05/23/1960 4.18 05/16/1961 3.47 05/18/1962 9.29 05/31/1963 5.07 06/01/1964 9.10 05/05/1965 4.88 06/04/1966 4.77 05/30/1967 6.22 05/30/1968 4.56 06/23/1969 4.92 04/15/1970 4.65 05/09/1971 6.11 04/30/1972 7.46 03/29/1974 2.02 04/23/1975 6.37 06/05/1976 7.17 06/09/1977 6.94 06/25/1978 5.38 07/23/1979 3.85 05/31/1981 3.65 05/10/1982 6.55 07/03/1983 3.59 05/27/1984 4.64 05/25/1985 2.89 04/13/1986 5.89 05/02/1987 5.20 06/12/1988 5.23 04/01/1989 4.84 05/24/1990 2.55 05/26/1991 4.39 06/13/1992 5.34 06/29/1993 10.14 06/07/1994 5.66 04/28/1995 5.22 05/17/1996 6.32 06/11/1997 4.21 06/07/1998 5.55 08/07/1999 4.30 05/07/2000 3.90 06/29/2001 5.04 Duration: 45 days 06/14/1942 5.59 05/30/1943 10.96 06/01/1944 10.37 05/13/1945 4.13 05/14/1946 7.13 05/18/1947 6.43 09/05/1949 3.73 03/25/1950 2.87 06/08/1952 2.53 05/09/1953 8.61 05/23/1954 5.39 05/27/1955 4.06 07/27/1956 6.51 05/20/1957 10.57 06/09/1958 5.22 05/26/1959 5.15 05/23/1960 5.42 05/04/1961 4.22 05/13/1962 10.90 05/11/1963 5.48 05/22/1965 7.10 06/04/1966 5.53 04/30/1967 8.48 06/04/1968 5.14 06/06/1969 6.78 04/11/1970 6.76 05/09/1971 7.32 04/19/1972 8.12 05/20/1974 2.81 04/26/1975 7.47 05/21/1976 7.82 05/27/1977 9.13 05/24/1978 6.25 07/13/1979 5.53 05/16/1981 4.67 05/09/1982 7.48 06/17/1983 4.77 04/26/1984 4.90 05/25/1985 3.86 04/03/1986 6.58 05/02/1987 5.36 05/06/1988 5.85 03/17/1989 5.47 06/07/1990 3.18 05/27/1991 5.71 06/15/1992 6.47 06/15/1993 11.16 06/01/1994 6.41 05/08/1995 6.84 05/03/1996 8.03 06/11/1997 5.18 05/23/1998 6.17 05/04/1999 5.06 05/07/2000 4.94 06/12/2001 6.72 Duration: 60 days 06/16/1942 6.68 05/23/1943 11.26 05/17/1944 11.35 05/17/1945 4.53 05/01/1946 7.91 05/02/1947 6.79 05/15/1949 3.89 03/17/1950 3.69 05/06/1952 3.89 04/23/1953 10.61 05/26/1954 5.76 07/26/1955 5.21 07/03/1956 8.76 05/13/1957 11.17 06/02/1958 5.90 05/20/1959 5.78 05/05/1960 5.89 04/20/1961 4.97 04/26/1962 12.01 06/01/1963 7.39 05/02/1964 12.12 05/08/1965 8.91 06/04/1966 7.02 04/16/1967 10.02 05/30/1968 6.06 05/20/1969 7.74 04/15/1970 8.15 04/19/1971 8.96 04/26/1972 9.22 04/11/1974 3.92 04/28/1975 9.40 05/05/1976 9.15 05/15/1977 10.29 05/24/1978 8.10 07/13/1979 6.88 05/16/1981 5.64 05/09/1982 8.03 06/12/1983 5.98 04/24/1984 7.56 05/04/1985 4.70 04/03/1986 6.99 07/08/1987 6.30 05/02/1988 7.98 04/26/1989 6.75 04/24/1990 4.44 04/26/1991 6.98 06/13/1992 8.03 05/30/1993 12.63 05/13/1994 7.04 04/28/1995 8.76 04/24/1996 8.76 06/11/1997 5.84 05/09/1998 7.11 05/04/1999 6.70 05/26/2000 6.50 05/30/2001 8.58