Precipitation annual maximum series (inches) Station ID: 39-8116 Station name: SUMMIT 1 W State: SD Latitude (decimal degrees): 45.3036 Longitude (decimal degrees): -97.0625 Elevation (feet): 1955 Duration: 1 day 05/14/1957 2.95 04/05/1958 1.18 08/04/1959 1.67 05/26/1960 1.71 08/18/1961 2.52 06/16/1962 1.82 07/24/1963 2.15 08/06/1964 1.31 05/23/1965 1.81 08/20/1966 2.65 06/14/1967 1.50 04/22/1968 1.72 05/16/1969 1.35 07/13/1970 2.00 06/29/1971 5.61 07/26/1972 3.63 05/24/1973 3.25 06/09/1974 1.12 06/22/1975 0.98 08/25/1976 1.46 03/12/1977 2.75 06/30/1978 1.88 06/19/1979 1.92 05/30/1980 1.40 07/13/1982 3.65 07/18/1983 1.85 06/15/1984 1.55 03/04/1985 1.75 06/10/1986 2.77 07/04/1987 1.28 09/19/1988 2.49 09/21/1989 2.95 06/15/1990 1.30 04/12/1991 2.45 06/17/1992 1.70 07/25/1993 2.15 07/07/1994 2.73 07/04/1995 2.81 10/17/1996 1.78 07/17/1997 1.85 08/22/1998 1.80 05/05/1999 1.49 11/01/2000 1.87 04/07/2001 1.88 06/21/2002 2.22 07/06/2004 2.37 06/08/2005 1.41 09/01/2006 1.93 09/20/2007 4.02 06/11/2008 2.96 08/19/2009 2.58 08/31/2010 1.65 Duration: 2 days 05/14/1957 3.18 04/05/1958 1.67 05/30/1959 1.98 05/25/1960 1.84 08/18/1961 2.71 05/16/1962 2.96 07/26/1963 2.54 08/20/1964 1.41 05/23/1965 2.11 08/20/1966 2.90 06/06/1967 2.07 04/22/1968 1.85 10/04/1969 1.60 07/13/1970 2.15 06/29/1971 6.04 07/26/1972 3.91 05/24/1973 3.50 08/09/1974 1.70 06/21/1975 1.38 08/25/1976 1.57 03/11/1977 3.17 06/30/1978 2.15 06/19/1979 3.11 06/01/1980 1.76 07/17/1983 3.12 06/14/1984 2.22 03/03/1985 2.90 06/10/1986 2.98 07/04/1987 1.74 09/19/1988 2.68 09/20/1989 3.18 06/15/1990 2.42 04/11/1991 2.81 06/16/1992 2.38 07/25/1993 2.32 07/07/1994 3.32 07/04/1995 4.36 10/17/1996 1.92 04/05/1997 1.99 10/16/1998 2.68 06/05/1999 1.85 11/01/2000 2.01 04/07/2001 2.02 06/21/2002 2.39 09/04/2004 2.55 06/07/2005 1.70 09/01/2006 3.36 09/19/2007 4.33 06/11/2008 3.19 08/19/2009 2.79 09/15/2010 1.78 Duration: 3 days 05/13/1957 3.21 04/04/1958 1.97 07/15/1959 2.07 05/24/1960 1.91 08/18/1961 2.74 05/16/1962 4.47 07/24/1963 3.85 08/20/1964 1.42 05/21/1965 2.20 08/19/1966 3.04 06/06/1967 2.09 04/20/1968 2.57 10/03/1969 1.87 07/13/1970 2.17 06/29/1971 6.10 07/26/1972 3.95 05/24/1973 3.53 08/09/1974 2.05 06/20/1975 1.54 08/25/1976 1.59 03/11/1977 3.20 05/27/1978 2.59 06/19/1979 3.14 06/02/1980 2.14 07/16/1983 3.40 06/14/1984 2.25 03/03/1985 2.93 06/10/1986 3.01 07/04/1987 1.76 08/02/1988 3.22 09/20/1989 3.21 06/15/1990 2.50 04/11/1991 2.96 06/17/1992 2.90 07/17/1993 3.66 07/07/1994 3.35 07/04/1995 4.40 10/17/1996 1.94 10/11/1997 2.01 10/15/1998 3.28 05/05/1999 2.02 10/30/2000 2.03 09/14/2001 2.04 06/21/2002 2.44 09/04/2004 2.58 06/08/2005 2.23 09/01/2006 3.39 09/18/2007 5.48 06/11/2008 3.22 08/19/2009 2.93 08/31/2010 2.20 Duration: 4 days 05/14/1957 3.80 04/03/1958 1.99 05/28/1959 2.39 05/24/1960 1.93 05/14/1961 3.65 05/15/1962 5.17 07/24/1963 4.69 08/18/1964 1.54 05/20/1965 2.72 08/19/1966 3.07 06/06/1967 2.11 04/20/1968 2.62 10/03/1969 1.89 06/13/1970 2.41 06/29/1971 6.16 07/26/1972 3.99 05/24/1973 3.67 08/09/1974 2.07 06/14/1975 1.76 08/25/1976 1.60 03/11/1977 3.23 06/28/1978 2.68 06/16/1979 3.17 05/30/1980 3.16 07/16/1983 3.43 06/04/1984 2.51 09/01/1985 3.48 06/07/1986 3.79 07/04/1987 1.85 08/02/1988 3.25 09/20/1989 3.24 06/15/1990 2.52 04/11/1991 2.99 06/16/1992 3.58 07/16/1993 3.86 07/05/1994 3.70 07/04/1995 4.45 10/17/1996 1.95 07/17/1997 2.66 10/15/1998 3.38 06/05/1999 2.48 10/29/2000 2.25 06/10/2001 2.60 06/21/2002 2.99 09/20/2004 3.08 06/07/2005 2.52 09/01/2006 3.43 09/18/2007 5.53 06/09/2008 3.25 08/16/2009 2.96 08/31/2010 2.22 Duration: 7 days 05/14/1957 5.04 04/01/1958 2.09 07/15/1959 2.68 05/26/1960 2.81 05/13/1961 3.89 05/13/1962 6.19 07/24/1963 4.99 08/18/1964 1.80 05/19/1965 3.11 08/15/1966 3.54 06/14/1967 2.38 04/20/1968 2.65 07/02/1969 2.24 06/12/1970 2.83 06/24/1971 6.35 07/21/1972 4.51 05/21/1973 3.85 08/09/1974 2.09 06/17/1975 2.21 08/25/1976 1.62 09/18/1977 3.30 05/25/1978 3.06 06/15/1979 4.64 05/29/1980 4.36 07/16/1983 3.47 10/14/1984 4.02 08/28/1985 3.87 06/04/1986 3.94 07/04/1987 2.95 08/02/1988 3.28 08/13/1989 3.42 06/13/1990 3.10 07/27/1991 3.44 06/15/1992 4.05 07/13/1993 4.22 07/07/1994 5.19 07/04/1995 4.49 05/14/1996 2.05 07/17/1997 3.02 10/11/1998 3.51 06/05/1999 2.60 11/01/2000 2.96 06/10/2001 3.38 06/19/2002 3.06 09/17/2004 4.13 06/07/2005 3.88 08/28/2006 3.46 09/18/2007 5.60 06/05/2008 5.07 10/01/2009 3.63 08/31/2010 3.50 Duration: 10 days 05/13/1957 6.14 04/01/1958 2.11 07/12/1959 2.73 05/24/1960 3.01 05/13/1961 3.93 05/13/1962 7.63 07/24/1963 5.44 08/20/1964 2.05 05/14/1965 4.19 08/13/1966 4.52 06/06/1967 4.10 04/20/1968 2.98 06/25/1969 2.89 06/12/1970 3.19 06/29/1971 7.10 07/17/1972 4.56 05/21/1973 3.89 08/02/1974 2.19 06/14/1975 3.35 03/03/1977 3.77 06/23/1978 4.10 06/12/1979 4.74 05/29/1980 5.28 07/16/1983 3.50 06/06/1984 5.11 08/27/1985 5.11 06/04/1986 4.05 07/04/1987 3.04 08/02/1988 3.32 08/13/1989 3.60 06/13/1990 3.30 05/27/1991 4.76 06/16/1992 4.51 07/16/1993 6.13 07/05/1994 6.15 08/04/1995 5.04 07/18/1996 2.52 07/17/1997 3.43 05/07/1998 3.66 08/26/1999 2.92 10/29/2000 3.34 06/10/2001 4.11 06/17/2002 3.09 09/15/2004 4.86 06/05/2005 4.92 08/24/2006 3.53 09/18/2007 5.66 06/03/2008 5.42 10/01/2009 3.70 08/31/2010 3.83 Duration: 20 days 05/13/1957 7.09 06/16/1958 2.48 06/26/1959 4.32 05/18/1960 3.71 05/05/1961 6.06 05/11/1962 9.16 07/16/1963 6.77 08/06/1964 3.34 05/05/1965 5.50 08/13/1966 4.85 06/06/1967 5.60 04/20/1968 4.88 06/19/1969 3.69 06/13/1970 3.68 06/18/1971 8.61 07/08/1972 6.32 05/21/1973 4.20 05/09/1974 2.85 06/04/1975 4.48 08/25/1976 2.75 03/11/1977 5.86 06/23/1978 5.17 06/09/1979 5.59 05/27/1980 5.72 06/29/1983 4.76 06/04/1984 7.03 08/22/1985 7.55 04/02/1986 5.54 07/04/1987 3.25 08/02/1988 4.36 08/13/1989 4.60 06/02/1990 4.79 07/22/1991 6.56 06/15/1992 6.38 07/07/1993 8.18 07/04/1994 9.01 07/25/1995 6.73 05/14/1996 3.78 07/07/1997 4.43 10/03/1998 5.75 06/05/1999 3.80 06/29/2000 4.71 05/31/2001 5.12 07/18/2002 3.83 09/04/2004 7.80 05/25/2005 6.02 08/13/2006 4.16 09/06/2007 6.43 05/25/2008 6.09 09/21/2009 5.84 08/31/2010 5.67 Duration: 30 days 05/13/1957 8.30 06/09/1958 3.46 06/17/1959 5.89 05/24/1960 5.73 04/20/1961 6.23 05/12/1962 11.13 07/01/1963 8.02 07/27/1964 4.00 05/09/1965 6.57 07/26/1966 5.30 06/06/1967 5.95 04/20/1968 5.16 06/23/1969 4.94 06/14/1970 5.18 05/31/1971 10.64 05/01/1972 7.18 05/01/1973 5.02 05/11/1974 3.93 06/04/1975 4.48 08/10/1976 3.31 03/03/1977 6.46 06/15/1978 5.80 05/30/1979 6.15 05/29/1980 6.72 06/20/1983 6.59 06/04/1984 7.50 08/12/1985 8.55 04/13/1986 7.52 07/04/1987 3.75 07/24/1988 5.02 07/29/1989 5.39 05/19/1990 5.79 05/23/1991 8.13 06/15/1992 7.55 06/29/1993 10.71 06/21/1994 9.18 08/04/1995 7.68 05/05/1996 5.14 07/17/1997 6.07 10/03/1998 6.80 08/07/1999 5.02 06/23/2000 5.32 04/07/2001 6.78 07/18/2002 5.29 09/04/2004 9.43 05/16/2005 7.00 09/01/2006 6.61 09/18/2007 7.43 06/02/2008 6.43 10/01/2009 6.94 08/31/2010 6.39 Duration: 45 days 04/19/1957 10.65 05/30/1958 4.44 06/26/1959 7.58 05/19/1960 6.95 04/11/1961 7.54 05/09/1962 14.34 06/22/1963 8.71 07/27/1964 5.24 04/24/1965 7.16 07/12/1966 7.75 06/06/1967 6.50 04/03/1968 6.51 06/23/1969 6.38 05/31/1970 6.24 05/17/1971 12.60 04/11/1972 8.05 04/20/1973 6.58 04/27/1974 5.06 05/19/1975 5.85 07/26/1976 3.83 03/11/1977 8.38 05/25/1978 8.67 06/15/1979 7.61 05/30/1980 9.18 06/04/1983 7.96 05/21/1984 7.92 07/24/1985 10.33 04/02/1986 9.13 07/04/1987 5.28 07/10/1988 5.46 08/10/1989 8.50 05/14/1990 6.99 05/23/1991 10.60 06/04/1992 8.83 06/13/1993 14.91 06/05/1994 11.83 07/04/1995 12.00 05/10/1996 6.19 07/07/1997 7.79 10/03/1998 7.86 07/23/1999 6.59 06/03/2000 6.74 05/05/2001 8.08 06/21/2002 7.28 08/22/2004 10.45 05/01/2005 9.22 08/10/2006 8.87 09/07/2007 9.00 05/02/2008 7.66 09/21/2009 9.08 08/13/2010 7.04 Duration: 60 days 04/19/1957 12.94 05/30/1958 4.88 06/17/1959 9.80 05/19/1960 8.20 08/15/1961 8.15 05/09/1962 19.50 05/31/1963 11.51 06/23/1964 6.22 03/27/1965 9.80 06/22/1966 8.94 06/06/1967 7.58 04/03/1968 6.79 06/10/1969 6.75 06/12/1970 7.99 05/17/1971 14.25 04/07/1972 9.07 04/20/1973 6.91 04/11/1974 5.96 04/24/1975 6.94 07/20/1976 4.61 07/27/1977 9.80 05/07/1978 9.63 06/12/1979 9.75 05/27/1980 10.56 07/16/1983 8.80 04/26/1984 10.16 07/14/1985 12.93 04/13/1986 12.89 05/13/1987 6.04 07/24/1988 8.19 07/29/1989 9.65 04/24/1990 8.82 06/04/1991 12.05 05/25/1992 9.71 05/30/1993 16.45 06/15/1994 14.00 07/04/1995 13.82 05/02/1996 7.85 07/02/1997 8.87 08/22/1998 8.40 05/05/1999 8.18 05/22/2000 7.77 04/21/2001 9.95 06/17/2002 9.19 09/04/2004 12.65 05/07/2005 10.38 08/05/2006 9.23 08/18/2007 9.77 06/05/2008 11.18 08/07/2009 10.72 08/31/2010 8.32