Precipitation annual maximum series (inches) Station ID: 39-2565 Station name: EDGEMONT 23 NNW State: SD Latitude (decimal degrees): 43.6242 Longitude (decimal degrees): -103.9172 Elevation (feet): 4402 Duration: 15 minutes 07/28/1978 0.40 08/05/1981 0.50 06/08/1983 0.40 07/08/1984 0.60 05/25/1985 0.50 06/30/1986 0.40 05/02/1987 0.30 06/22/1988 0.50 07/12/1989 1.30 04/19/1990 0.20 05/11/1991 0.60 06/01/1992 0.20 07/26/1993 0.60 10/05/1994 0.40 06/21/1995 0.40 07/04/1996 0.50 07/19/1997 1.00 07/02/1998 0.30 08/28/1999 0.90 07/07/2001 0.50 10/22/2004 0.30 05/23/2006 0.50 08/03/2007 0.30 08/05/2008 1.00 06/17/2009 0.60 Duration: 30 minutes 07/28/1978 0.40 08/05/1981 0.90 07/17/1983 0.80 07/08/1984 1.00 05/25/1985 0.50 06/30/1986 0.50 07/17/1987 0.60 06/22/1988 0.70 07/12/1989 1.70 04/19/1990 0.30 05/11/1991 0.90 07/06/1992 0.40 07/16/1993 0.70 06/07/1994 0.70 06/21/1995 0.50 07/04/1996 0.60 07/19/1997 1.70 07/04/1998 0.60 08/28/1999 1.30 07/07/2001 0.80 06/20/2004 0.50 05/23/2006 0.60 07/18/2007 0.30 08/05/2008 1.40 08/23/2009 0.90 Duration: 45 minutes 07/20/1978 0.40 08/05/1981 1.00 07/17/1983 0.90 07/08/1984 1.00 05/25/1985 0.60 06/30/1986 0.50 07/17/1987 0.60 06/22/1988 0.80 07/12/1989 1.90 04/19/1990 0.40 05/11/1991 1.20 06/01/1992 0.40 07/16/1993 0.70 06/07/1994 0.70 06/21/1995 0.60 07/04/1996 0.60 07/19/1997 2.00 07/04/1998 0.70 08/28/1999 1.30 07/07/2001 0.90 06/20/2004 0.60 05/23/2006 1.00 05/22/2007 0.30 08/05/2008 1.40 08/23/2009 0.90 Duration: 1 hour 08/09/1968 1.19 07/18/1969 0.92 08/06/1970 0.88 06/06/1971 0.48 06/17/1972 1.18 08/21/1973 0.71 05/29/1974 0.31 07/06/1975 2.11 08/15/1976 0.66 08/08/1977 0.55 08/05/1981 0.92 06/08/1983 0.83 07/08/1984 0.92 05/25/1985 0.55 06/30/1986 0.46 05/02/1987 0.55 06/22/1988 0.92 07/12/1989 1.74 04/19/1990 0.37 05/11/1991 1.38 06/01/1992 0.37 07/16/1993 0.64 06/07/1994 0.64 06/21/1995 0.55 07/04/1996 0.64 07/19/1997 2.02 07/04/1998 0.64 08/28/1999 1.28 07/07/2001 0.83 06/20/2004 0.64 05/23/2006 0.92 05/22/2007 0.37 Duration: 2 hours 08/09/1968 1.26 07/18/1969 1.30 08/06/1970 0.97 06/06/1971 0.57 06/17/1972 1.70 08/21/1973 0.88 07/20/1974 0.42 07/06/1975 2.53 08/15/1976 0.69 05/18/1977 0.73 08/05/1981 1.06 07/17/1983 0.87 07/08/1984 0.96 05/25/1985 0.67 06/30/1986 0.58 05/02/1987 0.77 06/22/1988 1.06 07/12/1989 1.92 09/19/1990 0.58 05/11/1991 2.02 05/09/1992 0.48 06/16/1993 0.77 10/05/1994 0.77 06/21/1995 0.58 07/04/1996 0.67 07/19/1997 2.31 07/04/1998 0.67 08/28/1999 1.35 07/07/2001 0.87 08/18/2003 2.21 06/20/2004 0.67 05/23/2006 1.15 05/22/2007 0.48 Duration: 3 hours 08/09/1968 1.33 07/05/1969 1.82 08/06/1970 1.06 06/06/1971 0.65 06/17/1972 1.74 08/21/1973 0.90 07/20/1974 0.57 07/06/1975 2.61 08/15/1976 0.71 08/04/1977 0.74 08/05/1981 1.10 07/16/1983 1.00 07/08/1984 1.00 05/25/1985 0.80 06/08/1986 0.70 05/02/1987 0.90 06/22/1988 1.20 07/12/1989 2.20 09/19/1990 0.60 05/11/1991 2.10 05/09/1992 0.50 07/16/1993 1.00 10/05/1994 1.00 08/26/1995 0.70 07/04/1996 0.70 07/19/1997 2.50 10/17/1998 0.80 08/28/1999 1.40 07/07/2001 0.90 08/18/2003 2.30 06/20/2004 0.70 05/23/2006 1.20 05/22/2007 0.50 Duration: 6 hours 08/09/1968 1.34 07/05/1969 1.87 08/06/1970 1.07 09/27/1971 0.98 06/17/1972 1.77 06/14/1973 1.00 07/20/1974 0.67 07/06/1975 2.65 07/31/1976 1.20 05/18/1977 1.04 08/05/1981 1.11 07/16/1983 1.10 07/08/1984 1.01 05/25/1985 0.81 06/30/1986 0.90 05/02/1987 1.20 06/22/1988 1.21 07/12/1989 2.22 07/21/1990 0.80 05/11/1991 2.40 06/15/1992 0.80 07/16/1993 1.50 10/05/1994 1.30 08/26/1995 1.00 04/11/1996 0.90 07/19/1997 2.52 06/19/1998 1.20 07/31/1999 1.41 07/07/2001 0.91 08/18/2003 2.50 10/22/2004 0.71 05/23/2006 1.30 04/23/2007 0.60 Duration: 12 hours 08/09/1968 1.36 07/05/1969 1.90 08/06/1970 1.08 09/27/1971 1.07 06/17/1972 1.79 06/14/1973 1.01 08/09/1974 1.05 07/06/1975 2.68 07/31/1976 1.60 05/18/1977 1.12 08/05/1981 1.12 07/16/1983 1.20 07/08/1984 1.02 05/25/1985 0.82 09/24/1986 1.50 05/02/1987 1.21 08/02/1988 1.50 07/12/1989 2.24 07/20/1990 1.00 05/11/1991 2.70 06/15/1992 0.81 07/16/1993 1.70 10/05/1994 1.50 06/09/1995 1.10 04/11/1996 1.20 07/19/1997 2.55 10/17/1998 1.50 07/31/1999 1.60 04/21/2001 1.20 08/18/2003 3.10 10/22/2004 0.80 05/23/2006 1.31 03/29/2007 0.70 Duration: 1 day 08/09/1968 1.21 07/05/1969 1.70 08/06/1970 0.97 09/04/1971 0.99 06/17/1972 1.86 06/14/1973 1.08 08/10/1974 1.26 07/06/1975 2.39 06/14/1976 1.84 05/18/1977 1.09 05/03/1981 1.07 07/17/1983 1.16 06/09/1984 1.07 05/25/1985 0.73 06/09/1986 1.88 05/02/1987 1.16 06/22/1988 1.34 07/12/1989 2.00 05/29/1990 1.07 05/11/1991 2.41 06/15/1992 0.80 06/07/1993 2.41 10/05/1994 1.52 06/21/1995 1.16 04/11/1996 1.25 07/19/1997 3.04 10/17/1998 1.61 07/31/1999 2.14 04/22/2001 1.16 08/18/2003 2.77 10/22/2004 0.80 05/23/2006 1.25 03/29/2007 0.80 Duration: 2 days 08/09/1968 2.35 07/15/1969 2.98 08/06/1970 1.04 04/17/1971 1.44 06/17/1972 2.72 07/19/1973 1.57 08/09/1974 1.36 07/05/1975 2.60 07/31/1976 2.33 05/17/1977 1.27 05/03/1981 1.54 07/16/1983 1.35 07/08/1984 1.35 05/25/1985 0.79 06/08/1986 2.50 05/24/1987 1.73 08/02/1988 1.63 07/12/1989 2.21 07/20/1990 1.63 05/10/1991 2.69 06/15/1992 1.06 06/06/1993 2.79 10/05/1994 1.73 06/08/1995 1.54 04/11/1996 1.73 07/18/1997 3.37 06/18/1998 2.21 07/31/1999 2.31 04/21/2001 1.35 08/18/2003 2.98 07/22/2004 1.25 05/22/2006 1.44 03/29/2007 1.15 Duration: 3 days 06/23/1968 2.44 07/16/1969 3.29 08/06/1970 1.07 04/17/1971 1.60 06/17/1972 2.83 07/19/1973 1.70 08/09/1974 1.41 07/05/1975 2.70 07/31/1976 2.42 05/16/1977 1.51 05/02/1981 1.60 07/16/1983 1.40 07/07/1984 1.60 05/25/1985 0.80 06/08/1986 2.60 05/24/1987 2.00 08/02/1988 1.70 07/12/1989 2.70 07/19/1990 1.80 05/10/1991 2.80 06/15/1992 1.10 06/06/1993 2.90 10/05/1994 1.80 05/06/1995 1.70 04/11/1996 2.10 07/18/1997 3.50 06/17/1998 2.30 07/29/1999 2.40 08/12/2001 1.60 08/18/2003 3.30 09/03/2004 1.30 05/22/2006 1.50 05/03/2007 1.20 Duration: 4 days 06/23/1968 2.46 07/15/1969 4.57 08/06/1970 1.08 04/17/1971 1.71 06/17/1972 2.86 07/19/1973 2.08 08/09/1974 1.42 07/05/1975 2.73 07/31/1976 2.44 05/16/1977 1.53 05/03/1981 2.10 07/17/1983 1.60 07/07/1984 1.62 05/25/1985 0.81 06/08/1986 2.63 05/23/1987 2.10 08/02/1988 1.72 07/12/1989 3.20 07/19/1990 2.00 05/10/1991 2.83 06/15/1992 1.40 06/06/1993 2.93 10/03/1994 1.90 05/05/1995 2.10 04/11/1996 2.12 07/18/1997 3.60 06/17/1998 2.32 07/29/1999 2.50 08/12/2001 1.62 08/18/2003 3.33 09/03/2004 1.31 05/20/2006 1.70 05/03/2007 1.40 Duration: 7 days 08/09/1968 2.78 07/15/1969 4.97 05/08/1970 1.19 09/27/1971 2.10 06/15/1972 2.91 07/19/1973 2.18 08/09/1974 1.44 07/05/1975 2.77 07/31/1976 2.57 08/04/1977 1.92 05/02/1981 2.60 07/16/1983 1.90 07/03/1984 2.50 05/19/1985 1.20 06/04/1986 2.80 05/20/1987 2.50 08/02/1988 1.74 07/10/1989 3.30 07/19/1990 2.02 05/10/1991 3.30 05/30/1992 1.90 06/01/1993 3.40 10/01/1994 2.00 06/03/1995 2.50 04/11/1996 2.20 07/18/1997 3.64 06/13/1998 2.70 07/29/1999 2.52 08/08/2001 1.90 06/16/2004 1.33 05/20/2006 1.72 05/02/2007 1.50 Duration: 10 days 08/09/1968 3.61 07/13/1969 5.02 05/07/1970 1.29 04/17/1971 2.62 06/10/1972 2.97 07/19/1973 2.73 08/09/1974 1.45 07/05/1975 2.80 07/31/1976 2.62 05/10/1977 2.06 05/02/1981 2.80 07/16/1983 2.10 06/30/1984 2.60 09/22/1985 1.30 09/24/1986 3.30 05/18/1987 2.70 06/22/1988 1.90 07/10/1989 3.33 07/14/1990 2.10 05/07/1991 3.40 05/30/1992 2.10 06/07/1993 4.00 10/01/1994 2.02 05/05/1995 2.80 04/11/1996 2.60 07/18/1997 3.68 06/12/1998 2.90 06/02/1999 2.70 05/27/2001 2.20 07/22/2004 1.70 05/20/2006 1.74 04/29/2007 1.60 06/11/2010 4.50 Duration: 20 days 05/21/1968 4.68 07/05/1969 6.94 04/28/1970 1.71 04/17/1971 2.92 06/04/1972 4.18 07/19/1973 3.16 10/29/1974 1.64 06/17/1975 4.36 07/31/1976 3.32 04/29/1977 2.38 07/17/1981 3.50 06/07/1983 3.00 07/03/1984 3.30 09/22/1985 2.10 09/18/1986 4.20 05/13/1987 3.30 06/11/1988 2.80 07/10/1989 3.33 07/19/1990 2.60 05/10/1991 6.00 05/30/1992 3.50 06/03/1993 6.20 10/01/1994 3.10 06/03/1995 4.00 05/07/1996 3.40 07/18/1997 4.40 06/03/1998 4.40 05/31/1999 3.80 05/27/2001 2.70 06/16/2004 2.50 05/04/2006 1.90 04/19/2007 2.80 Duration: 30 days 05/27/1968 5.94 06/21/1969 10.08 04/15/1970 2.35 09/03/1971 4.27 06/04/1972 4.84 07/19/1973 3.79 07/17/1974 2.73 06/07/1975 5.81 05/20/1976 3.98 08/04/1977 2.95 07/17/1981 4.50 06/03/1983 3.70 07/03/1984 5.00 09/12/1985 2.60 09/05/1986 5.40 05/02/1987 4.50 06/01/1988 3.10 06/16/1989 4.00 07/14/1990 3.10 05/10/1991 8.50 06/15/1992 4.60 05/29/1993 6.50 10/05/1994 3.50 06/01/1995 4.70 04/11/1996 4.10 07/02/1997 5.20 06/05/1998 5.70 05/19/1999 4.70 05/27/2001 3.00 06/30/2004 3.20 04/24/2006 2.70 04/14/2007 2.90 05/24/2010 7.00 Duration: 45 days 05/21/1968 8.11 06/06/1969 12.21 04/11/1970 3.01 09/04/1971 4.80 06/17/1972 6.44 07/20/1973 5.18 07/20/1974 3.43 05/23/1975 6.16 05/20/1976 4.29 07/04/1977 3.98 07/07/1981 5.90 06/03/1983 5.20 06/20/1984 6.20 09/02/1985 3.20 08/23/1986 5.80 05/02/1987 5.50 06/22/1988 4.70 06/07/1989 4.70 04/19/1990 4.20 05/02/1991 9.80 05/30/1992 6.70 06/03/1993 9.40 10/01/1994 4.00 04/30/1995 6.50 04/11/1996 5.90 07/02/1997 5.50 05/08/1998 7.10 05/14/1999 5.50 05/27/2001 4.90 06/16/2004 4.60 04/12/2006 3.00 04/19/2007 4.30 05/10/2010 9.80 Duration: 60 days 05/21/1968 9.32 06/06/1969 12.77 04/14/1970 3.88 04/17/1971 5.80 06/04/1972 8.04 07/19/1973 7.06 07/08/1974 3.82 05/08/1975 7.88 06/13/1976 5.39 06/12/1977 5.28 06/20/1981 6.20 06/07/1983 6.00 06/04/1984 8.10 08/14/1985 3.40 08/11/1986 6.40 04/19/1987 5.80 06/11/1988 5.60 07/12/1989 5.50 04/04/1990 5.40 04/10/1991 10.70 05/30/1992 8.00 05/29/1993 10.70 10/01/1994 4.00 04/30/1995 8.50 04/11/1996 7.20 06/01/1997 6.70 05/10/1998 9.00 06/02/1999 7.30 05/27/2001 5.00 06/06/2004 4.70 03/31/2006 3.60 03/29/2007 4.70 05/10/2010 11.10