Precipitation annual maximum series (inches) Station ID: 39-4268 Station name: ISABEL State: SD Latitude (decimal degrees): 45.3953 Longitude (decimal degrees): -101.4292 Elevation (feet): 2410 Duration: 1 hour 05/22/1949 0.54 07/18/1950 0.58 08/30/1951 1.60 06/24/1952 0.73 06/15/1953 1.40 08/26/1954 1.13 09/18/1955 0.94 08/04/1956 0.94 08/16/1957 0.77 07/10/1958 0.96 07/13/1959 0.69 08/16/1960 1.22 06/29/1961 0.51 08/09/1962 1.71 07/12/1963 0.76 06/08/1964 0.91 08/04/1965 0.81 07/21/1966 1.16 06/05/1967 0.51 08/07/1968 1.21 07/07/1969 0.67 05/07/1970 0.98 07/06/1971 0.75 06/25/1972 0.66 09/02/1973 0.63 08/08/1974 1.13 07/31/1975 0.79 06/23/1976 0.52 06/21/1977 0.65 06/25/1978 0.70 09/10/1979 1.28 06/02/1980 1.43 07/18/1981 0.86 10/01/1982 0.46 07/29/1983 0.93 08/29/1985 0.93 07/10/1989 0.60 08/22/1990 1.20 06/25/1991 0.60 06/15/1992 1.70 10/06/1994 1.10 06/21/1995 1.00 06/21/1996 0.90 06/30/1997 1.50 07/10/1998 1.90 08/11/1999 1.40 07/28/2002 0.40 07/03/2003 0.70 07/11/2005 0.90 08/18/2006 1.10 07/18/2008 2.20 06/26/2009 0.80 Duration: 2 hours 04/30/1949 0.68 07/18/1950 0.61 08/30/1951 2.43 06/24/1952 0.77 06/15/1953 2.35 08/26/1954 1.22 09/18/1955 0.99 08/04/1956 1.05 08/16/1957 0.81 07/10/1958 1.01 07/13/1959 1.00 08/16/1960 1.40 06/29/1961 0.59 08/09/1962 1.86 07/12/1963 0.96 06/08/1964 1.72 06/01/1965 0.92 07/21/1966 1.49 06/05/1967 0.82 08/07/1968 1.34 07/07/1969 0.87 05/07/1970 1.33 07/11/1971 0.90 06/25/1972 0.84 09/02/1973 0.83 08/08/1974 1.18 06/21/1975 1.33 06/15/1976 0.64 06/21/1977 1.10 06/25/1978 0.82 09/10/1979 1.34 06/02/1980 1.54 07/18/1981 1.10 10/01/1982 0.48 07/29/1983 0.97 08/29/1985 1.01 07/11/1989 0.80 08/22/1990 1.30 06/25/1991 0.63 06/15/1992 1.90 10/06/1994 1.30 06/21/1995 1.70 06/21/1996 1.30 06/30/1997 2.00 07/10/1998 2.10 08/11/1999 1.70 06/22/2002 0.50 07/03/2003 0.80 07/11/2005 1.20 08/18/2006 1.30 07/18/2008 2.31 06/26/2009 1.50 Duration: 3 hours 04/30/1949 0.82 07/18/1950 0.69 08/30/1951 2.65 06/24/1952 0.87 06/15/1953 2.60 08/26/1954 1.24 09/18/1955 1.01 08/04/1956 1.07 08/16/1957 0.96 07/10/1958 1.03 07/13/1959 1.02 08/16/1960 1.45 06/29/1961 0.60 08/09/1962 1.90 06/02/1963 1.00 06/08/1964 2.20 06/01/1965 0.96 07/21/1966 1.58 06/05/1967 0.98 06/20/1968 1.46 07/07/1969 0.89 05/07/1970 1.36 07/10/1971 1.03 05/21/1972 0.90 09/02/1973 1.35 08/08/1974 1.27 06/21/1975 1.36 06/14/1976 0.82 06/21/1977 1.23 06/25/1978 0.85 09/10/1979 1.37 06/02/1980 1.57 07/18/1981 1.12 05/15/1982 0.56 05/06/1983 1.05 08/29/1985 1.03 07/10/1989 1.20 08/22/1990 1.33 06/25/1991 0.64 06/15/1992 1.94 10/06/1994 1.33 06/21/1995 2.20 06/21/1996 1.33 06/30/1997 2.04 07/10/1998 2.14 08/11/1999 1.73 06/22/2002 0.70 07/03/2003 0.82 07/10/2005 1.60 08/18/2006 1.33 07/18/2008 2.40 06/26/2009 1.53 Duration: 6 hours 04/30/1949 1.27 07/18/1950 0.78 08/29/1951 2.69 06/24/1952 1.10 06/15/1953 2.93 08/26/1954 1.26 09/20/1955 1.03 08/04/1956 1.08 08/16/1957 1.09 07/10/1958 1.04 07/13/1959 1.03 08/16/1960 1.55 07/27/1961 0.93 05/21/1962 2.28 09/01/1963 1.03 06/08/1964 2.22 06/01/1965 0.97 07/21/1966 1.62 06/05/1967 1.05 06/20/1968 1.48 07/06/1969 0.94 05/07/1970 1.64 10/17/1971 1.09 10/05/1972 1.07 09/02/1973 1.55 08/08/1974 1.29 06/21/1975 1.40 06/14/1976 1.32 06/21/1977 1.24 08/14/1978 1.50 07/25/1979 1.38 06/02/1980 1.59 07/18/1981 1.13 05/15/1982 0.87 05/06/1983 1.27 08/29/1985 1.04 07/10/1989 1.40 08/22/1990 1.34 05/27/1991 0.65 06/15/1992 2.00 10/06/1994 1.70 06/21/1995 2.60 06/21/1996 1.34 06/30/1997 2.06 07/09/1998 2.30 08/11/1999 1.75 06/22/2002 0.71 03/17/2003 0.83 07/10/2005 1.70 08/18/2006 1.34 07/18/2008 2.50 06/26/2009 1.60 Duration: 12 hours 04/30/1949 1.35 09/20/1950 1.38 08/29/1951 2.77 06/24/1952 1.11 06/14/1953 3.25 06/10/1954 1.37 09/20/1955 1.54 08/04/1956 1.09 08/16/1957 1.55 07/10/1958 1.05 09/17/1959 1.10 05/24/1960 1.65 09/12/1961 1.43 05/21/1962 2.30 09/01/1963 1.17 06/08/1964 2.24 06/01/1965 0.98 07/21/1966 1.64 06/05/1967 1.06 06/20/1968 1.49 06/22/1969 1.02 06/11/1970 1.67 10/17/1971 1.21 10/05/1972 1.61 09/02/1973 1.60 08/08/1974 1.30 06/21/1975 1.45 06/14/1976 1.58 06/21/1977 1.25 08/14/1978 1.55 07/25/1979 1.40 10/15/1980 1.90 09/06/1981 1.47 05/14/1982 1.37 05/11/1983 1.47 08/29/1985 1.05 07/10/1989 1.50 08/22/1990 1.36 04/11/1991 0.66 06/15/1992 2.02 10/06/1994 1.80 06/21/1995 2.80 09/18/1996 1.90 06/30/1997 2.08 06/16/1998 2.50 08/11/1999 1.77 06/22/2002 0.72 03/16/2003 0.90 07/10/2005 1.72 08/18/2006 1.36 07/18/2008 2.90 06/26/2009 1.62 Duration: 1 day 06/07/1925 2.75 04/30/1949 1.24 09/20/1950 1.29 08/30/1951 2.49 06/24/1952 0.99 06/15/1953 4.13 06/10/1954 1.22 09/20/1955 1.43 08/04/1956 1.15 05/25/1957 1.57 07/10/1958 0.95 06/26/1959 1.26 08/16/1960 1.54 09/12/1961 1.43 05/21/1962 2.62 09/01/1963 1.44 06/08/1964 2.21 08/04/1965 0.89 07/21/1966 1.47 04/30/1967 0.95 06/20/1968 1.33 07/07/1969 1.47 06/12/1970 1.71 04/20/1971 1.97 10/05/1972 1.56 05/26/1973 2.08 08/08/1974 1.33 06/21/1975 1.29 04/16/1976 1.86 09/23/1977 1.17 08/14/1978 1.92 09/10/1979 1.26 10/15/1980 2.11 09/06/1981 1.64 10/09/1982 1.88 05/06/1983 1.53 06/09/1984 1.38 06/10/1985 0.94 07/14/1989 1.34 08/22/1990 1.25 04/11/1991 0.71 06/15/1992 1.80 10/06/1994 2.50 06/21/1995 3.21 09/18/1996 2.23 06/30/1997 1.86 10/04/1998 2.50 08/11/1999 1.61 03/08/2000 2.00 09/20/2001 0.98 06/23/2002 0.73 03/18/2003 0.98 07/02/2004 2.15 07/11/2005 1.74 08/18/2006 1.21 05/29/2007 2.30 07/18/2008 3.04 06/27/2009 1.45 09/06/2010 1.51 Duration: 2 days 04/30/1949 1.44 09/20/1950 1.39 08/29/1951 2.68 06/24/1952 1.07 06/14/1953 4.55 06/10/1954 1.32 09/20/1955 2.30 08/03/1956 1.36 05/24/1957 1.71 07/02/1958 1.60 05/04/1959 1.41 05/24/1960 1.69 09/12/1961 1.54 05/20/1962 3.34 09/01/1963 1.55 06/07/1964 2.43 09/28/1965 1.18 07/21/1966 1.59 06/05/1967 1.25 06/20/1968 1.44 06/24/1969 1.91 06/11/1970 1.86 04/19/1971 2.44 10/05/1972 1.68 05/25/1973 2.65 08/08/1974 1.96 04/28/1975 1.60 06/14/1976 2.13 09/23/1977 1.73 08/14/1978 2.12 06/19/1979 1.48 10/15/1980 2.88 09/06/1981 1.77 10/08/1982 2.91 05/11/1983 1.65 03/02/1985 1.02 07/10/1989 1.44 08/22/1990 1.73 04/11/1991 1.25 06/15/1992 2.31 10/06/1994 2.69 06/21/1995 3.56 09/18/1996 3.37 06/30/1997 2.40 06/16/1998 3.27 08/11/1999 1.92 03/08/2000 2.64 09/14/2001 1.07 06/23/2002 0.79 03/18/2003 1.56 07/02/2004 2.32 07/11/2005 1.87 09/22/2006 1.67 05/29/2007 2.48 06/05/2008 3.65 06/27/2009 1.63 07/21/2010 1.76 Duration: 3 days 01/02/1949 1.50 09/20/1950 1.45 08/29/1951 2.79 06/24/1952 1.30 06/13/1953 5.45 06/10/1954 1.37 09/18/1955 2.63 08/03/1956 1.70 08/15/1957 1.78 07/02/1958 1.66 05/04/1959 1.47 05/23/1960 1.76 09/12/1961 1.60 08/08/1962 3.47 09/01/1963 1.81 06/07/1964 2.53 08/04/1965 1.27 07/21/1966 1.65 06/05/1967 1.30 06/05/1968 1.81 06/24/1969 2.13 06/10/1970 2.43 04/19/1971 2.54 10/05/1972 1.75 05/25/1973 2.76 08/08/1974 2.04 04/27/1975 1.71 06/13/1976 2.22 09/21/1977 2.06 08/13/1978 2.20 06/18/1979 1.54 10/15/1980 2.99 09/06/1981 1.84 10/08/1982 3.04 05/11/1983 1.71 03/02/1985 1.12 04/26/1989 1.50 07/24/1990 2.10 04/11/1991 1.50 06/14/1992 2.70 10/06/1994 2.80 06/21/1995 3.70 09/18/1996 4.10 06/29/1997 2.60 06/16/1998 3.40 06/05/1999 2.10 03/08/2000 2.67 07/24/2001 1.38 06/23/2002 0.80 03/17/2003 1.58 07/02/2004 2.34 07/11/2005 1.89 09/22/2006 1.69 05/29/2007 2.50 06/03/2008 3.76 08/06/2009 1.65 07/21/2010 1.78 Duration: 4 days 06/04/1925 3.78 01/02/1949 2.00 09/20/1950 1.46 08/29/1951 2.82 06/24/1952 1.95 06/13/1953 5.50 06/07/1954 1.47 09/18/1955 2.75 08/03/1956 1.72 05/24/1957 1.94 06/30/1958 2.15 05/04/1959 1.48 05/24/1960 1.84 09/09/1961 1.65 05/18/1962 4.31 09/01/1963 1.83 06/08/1964 2.82 05/22/1965 1.53 08/11/1966 2.13 06/04/1967 1.34 06/05/1968 2.07 06/22/1969 2.80 06/10/1970 2.45 04/18/1971 2.58 10/05/1972 1.77 05/25/1973 2.79 08/08/1974 2.06 06/18/1975 2.62 06/13/1976 2.24 09/21/1977 2.08 08/13/1978 2.22 06/19/1979 2.00 10/15/1980 3.02 06/11/1981 1.96 05/13/1982 3.53 05/09/1983 1.91 03/02/1985 1.13 07/11/1989 2.00 07/24/1990 2.20 04/11/1991 1.51 06/13/1992 2.80 10/06/1994 2.83 06/21/1995 3.74 09/17/1996 4.70 06/29/1997 2.63 06/16/1998 3.50 06/04/1999 2.70 03/08/2000 2.70 07/24/2001 1.50 03/17/2003 1.60 07/02/2004 2.77 07/11/2005 1.91 09/22/2006 1.71 05/26/2007 2.98 06/02/2008 4.42 08/06/2009 1.67 05/22/2010 1.93 Duration: 7 days 06/01/1925 5.08 01/02/1949 2.02 09/14/1950 1.86 08/29/1951 2.86 06/21/1952 2.07 06/13/1953 6.64 05/21/1954 2.11 09/18/1955 3.48 08/03/1956 1.74 05/19/1957 3.21 07/02/1958 2.21 06/24/1959 1.83 05/23/1960 2.26 09/07/1961 1.78 05/15/1962 5.78 08/27/1963 2.27 04/26/1964 3.22 05/04/1965 1.72 08/11/1966 2.15 06/12/1967 1.95 06/20/1968 2.37 06/22/1969 3.29 04/13/1970 2.78 04/18/1971 2.61 04/26/1972 1.88 05/25/1973 2.96 08/08/1974 2.34 06/16/1975 2.80 06/13/1976 2.27 09/17/1977 2.66 08/10/1978 2.24 06/17/1979 2.15 10/15/1980 3.05 06/11/1981 2.11 05/10/1982 4.03 05/06/1983 3.24 05/26/1985 1.49 07/10/1989 2.60 07/24/1990 2.22 04/11/1991 1.53 06/13/1992 2.90 10/01/1994 3.10 06/21/1995 3.78 09/17/1996 4.80 06/29/1997 2.66 06/16/1998 3.70 06/03/1999 3.70 03/08/2000 2.72 09/14/2001 2.23 08/09/2002 1.01 06/01/2003 1.63 07/02/2004 3.77 06/07/2005 2.20 09/18/2006 1.92 05/26/2007 3.15 06/01/2008 6.68 08/05/2009 1.68 09/06/2010 2.54 Duration: 10 days 06/01/1925 5.73 01/02/1949 2.06 09/13/1950 1.91 08/30/1951 3.78 06/19/1952 2.18 06/13/1953 7.62 06/01/1954 2.39 09/18/1955 3.68 07/27/1956 2.00 05/16/1957 3.51 07/02/1958 3.22 06/24/1959 1.88 08/16/1960 2.51 09/12/1961 2.29 05/13/1962 7.13 08/23/1963 2.51 04/26/1964 3.48 05/05/1965 2.58 08/11/1966 3.07 06/04/1967 2.63 06/20/1968 2.91 06/18/1969 3.32 04/11/1970 3.73 04/18/1971 3.31 05/18/1972 2.21 05/25/1973 3.31 07/31/1974 2.53 06/16/1975 3.15 06/14/1976 3.59 09/17/1977 2.69 08/13/1978 2.60 06/18/1979 2.36 10/15/1980 3.08 06/11/1981 2.33 05/12/1982 5.19 05/04/1983 3.28 08/21/1985 1.91 07/07/1989 2.70 07/24/1990 2.24 05/22/1991 2.10 06/07/1992 3.00 10/01/1994 3.13 06/21/1995 3.81 09/17/1996 5.00 06/29/1997 2.68 06/16/1998 3.90 05/29/1999 3.74 03/08/2000 2.75 09/14/2001 2.25 05/28/2003 2.04 07/02/2004 3.81 06/06/2005 2.39 09/18/2006 2.17 05/29/2007 4.80 06/01/2008 6.75 06/06/2009 2.25 09/06/2010 3.15 Duration: 20 days 05/31/1925 7.31 01/02/1949 2.19 09/13/1950 2.34 08/11/1951 5.01 06/24/1952 3.06 06/08/1953 8.82 05/22/1954 4.39 05/22/1955 4.06 07/16/1956 2.23 05/12/1957 4.35 06/30/1958 4.27 06/26/1959 3.33 08/06/1960 2.70 09/07/1961 2.94 05/12/1962 8.76 08/17/1963 3.48 04/18/1964 4.83 05/05/1965 3.88 08/07/1966 3.33 05/30/1967 4.32 06/05/1968 5.16 06/18/1969 5.09 04/11/1970 3.95 04/18/1971 3.44 05/09/1972 3.32 05/18/1973 3.51 07/31/1974 3.38 06/07/1975 4.53 06/14/1976 4.33 09/21/1977 3.79 06/22/1978 3.47 07/11/1979 3.46 10/15/1980 3.08 07/18/1981 3.58 05/10/1982 6.35 05/01/1983 3.78 05/26/1985 2.90 07/10/1989 2.70 07/10/1990 2.70 05/11/1991 3.30 06/13/1992 3.90 10/01/1994 4.80 06/04/1995 6.10 09/17/1996 5.10 06/30/1997 3.20 06/08/1998 5.20 04/25/1999 4.50 04/19/2000 3.92 05/29/2001 2.89 07/28/2002 1.62 06/22/2003 2.86 06/24/2004 4.11 05/25/2005 3.02 09/18/2006 2.31 05/20/2007 7.07 05/24/2008 8.34 06/15/2009 3.35 05/07/2010 4.31 Duration: 30 days 05/26/1925 8.29 04/30/1949 2.79 09/09/1950 2.69 08/11/1951 6.03 06/15/1952 3.67 05/28/1953 10.16 05/22/1954 4.84 05/24/1955 4.86 07/07/1956 3.25 07/28/1957 5.33 06/12/1958 5.13 06/24/1959 3.85 05/23/1960 3.84 04/20/1961 3.58 05/12/1962 10.42 08/08/1963 3.91 04/18/1964 5.63 05/04/1965 5.35 07/21/1966 4.79 05/30/1967 5.01 06/04/1968 5.87 06/22/1969 5.85 04/12/1970 5.96 05/21/1971 4.32 04/26/1972 4.99 05/25/1973 4.52 07/31/1974 3.78 06/07/1975 5.67 06/13/1976 4.53 08/25/1977 4.50 06/23/1978 5.12 06/17/1979 4.11 09/24/1980 3.15 07/08/1981 4.45 05/03/1982 6.74 04/28/1983 3.98 04/11/1984 3.77 05/26/1985 3.32 06/16/1989 3.50 07/24/1990 3.70 05/03/1991 4.00 06/30/1992 5.60 09/21/1994 4.90 05/25/1995 6.90 09/05/1996 5.40 06/29/1997 4.30 06/13/1998 7.70 05/09/1999 5.90 04/19/2000 4.78 05/29/2001 3.46 07/18/2002 2.21 04/16/2003 3.67 06/10/2004 5.98 06/12/2005 4.05 09/01/2006 2.74 05/20/2007 8.60 07/07/2008 9.30 06/06/2009 4.89 04/29/2010 4.55 Duration: 45 days 04/20/1949 3.51 08/25/1950 2.90 08/07/1951 6.87 06/19/1952 4.54 05/16/1953 11.88 05/14/1954 5.55 05/24/1955 5.32 06/24/1956 4.67 05/13/1957 6.48 05/29/1958 7.70 06/24/1959 4.36 05/23/1960 4.04 05/04/1961 4.42 05/12/1962 12.57 07/23/1963 4.96 04/26/1964 7.32 04/23/1965 6.15 07/12/1966 6.51 05/15/1967 5.60 06/04/1968 6.26 06/06/1969 6.86 04/11/1970 7.22 04/18/1971 6.48 04/30/1972 5.84 09/02/1973 5.24 07/01/1974 4.57 05/23/1975 6.02 05/11/1976 6.32 08/27/1977 6.08 06/06/1978 5.64 06/17/1979 6.03 09/11/1980 3.77 06/04/1981 5.12 05/08/1982 7.34 06/21/1983 5.07 04/26/1984 4.41 07/30/1985 4.39 06/02/1989 3.70 06/15/1990 4.70 05/15/1991 4.90 06/15/1992 8.30 06/07/1993 9.94 09/11/1994 5.20 05/08/1995 8.40 09/17/1996 6.90 06/29/1997 4.70 06/08/1998 8.80 04/25/1999 8.50 06/04/2000 6.47 06/13/2001 4.68 07/18/2002 2.59 04/29/2003 5.40 05/23/2004 6.31 05/31/2005 5.70 08/11/2006 4.32 05/26/2007 9.60 05/02/2008 11.92 05/21/2009 5.83 05/07/2010 6.36 Duration: 60 days 04/08/1949 4.05 03/23/1950 3.40 08/06/1951 8.98 06/19/1952 5.35 04/29/1953 13.70 04/27/1954 6.24 04/19/1955 5.91 06/14/1956 4.97 04/18/1957 7.59 05/29/1958 8.39 05/19/1959 5.91 05/18/1960 4.30 04/20/1961 5.18 05/12/1962 13.72 07/06/1963 6.35 04/26/1964 9.22 05/04/1965 7.84 06/22/1966 7.07 04/30/1967 6.88 05/06/1968 6.86 05/20/1969 8.23 04/14/1970 9.15 04/19/1971 7.86 04/30/1972 7.83 04/19/1973 5.80 04/07/1974 5.78 04/27/1975 8.42 05/05/1976 7.27 08/14/1977 7.23 06/24/1978 7.69 05/31/1979 6.66 08/23/1980 4.38 06/08/1981 7.22 04/04/1982 8.01 06/26/1983 6.56 04/23/1984 6.50 07/24/1985 4.73 03/02/1989 4.30 06/01/1990 5.70 05/03/1991 6.30 06/07/1992 9.40 06/02/1993 12.00 08/29/1994 5.60 04/25/1995 10.10 09/17/1996 7.30 04/04/1997 5.60 05/23/1998 9.40 05/03/1999 10.10 05/27/2000 7.65 05/29/2001 6.45 06/18/2002 3.43 04/29/2003 6.56 06/08/2004 7.62 05/13/2005 6.30 08/05/2006 4.87 05/20/2007 11.64 06/01/2008 14.70 05/21/2009 6.71 04/29/2010 7.25