Precipitation annual maximum series (inches) Station ID: 39-4254 Station name: IROQUOIS State: SD Latitude (decimal degrees): 44.3647 Longitude (decimal degrees): -97.8486 Elevation (feet): 1400 Duration: 1 day 06/24/1952 1.36 09/10/1953 1.90 05/27/1954 1.65 07/22/1955 1.40 08/03/1956 2.15 05/25/1957 1.48 07/02/1958 1.70 09/01/1959 1.78 08/05/1960 3.12 10/11/1961 2.25 05/16/1962 2.97 06/23/1963 2.55 04/27/1964 0.85 05/21/1965 1.58 09/01/1966 2.07 06/19/1967 2.63 08/08/1968 1.61 10/04/1969 1.40 04/12/1970 1.67 07/04/1971 1.80 05/24/1972 3.90 09/03/1973 1.32 06/09/1974 1.80 04/17/1975 0.95 09/19/1976 1.83 03/11/1977 1.25 05/07/1978 1.11 06/16/1979 1.70 06/27/1980 1.56 08/01/1981 2.15 05/30/1982 2.30 06/13/1983 1.13 06/20/1984 2.00 07/25/1986 5.20 07/20/1987 2.10 09/18/1988 1.15 04/28/1989 1.44 06/16/1990 1.90 06/05/1991 3.90 06/17/1992 1.55 05/02/1993 1.20 07/07/1994 1.80 07/04/1995 2.10 10/17/1996 1.60 09/15/1997 3.15 11/01/2000 1.81 06/13/2001 2.94 08/05/2002 1.33 05/30/2004 2.88 09/12/2005 2.70 08/11/2006 1.68 05/05/2007 3.81 04/25/2008 1.19 06/08/2009 1.58 06/12/2010 3.65 Duration: 2 days 06/24/1952 1.46 09/10/1953 2.05 05/26/1954 1.80 07/22/1955 1.51 08/02/1956 3.53 05/24/1957 1.59 05/12/1958 1.94 09/01/1959 1.92 08/05/1960 3.36 10/10/1961 3.90 05/16/1962 3.92 06/22/1963 2.75 04/26/1964 1.15 05/20/1965 2.29 07/12/1966 2.27 06/18/1967 3.03 06/24/1968 2.05 10/04/1969 2.45 04/12/1970 2.37 07/03/1971 1.94 07/20/1972 5.10 09/03/1973 1.42 06/09/1974 1.94 06/08/1975 1.60 09/19/1976 1.97 03/11/1977 2.50 05/07/1978 1.61 04/11/1979 1.83 06/26/1980 2.01 08/01/1981 2.32 05/29/1982 2.55 06/13/1983 1.63 06/20/1984 2.60 07/24/1986 5.60 07/20/1987 2.26 09/18/1988 1.98 05/16/1989 1.90 06/16/1990 3.80 06/04/1991 4.65 06/16/1992 1.68 06/23/1993 1.65 07/07/1994 2.10 07/04/1995 2.30 10/17/1996 1.72 09/15/1997 3.39 07/10/2000 2.16 06/13/2001 3.26 08/05/2002 1.75 05/30/2004 3.10 09/12/2005 2.91 08/11/2006 2.09 05/04/2007 4.51 10/06/2008 1.32 10/29/2009 1.90 06/11/2010 4.42 Duration: 3 days 06/22/1952 1.59 09/10/1953 2.07 05/26/1954 1.82 07/22/1955 1.52 08/01/1956 3.56 07/02/1957 1.65 05/12/1958 2.47 09/01/1959 1.94 08/23/1960 3.62 10/10/1961 3.94 05/16/1962 4.94 06/22/1963 2.77 04/26/1964 1.16 05/20/1965 2.31 07/12/1966 2.29 06/18/1967 3.06 06/23/1968 2.15 10/04/1969 2.47 04/12/1970 2.39 10/27/1971 2.07 07/20/1972 5.15 09/01/1973 1.44 06/09/1974 1.96 06/08/1975 1.62 09/19/1976 1.99 03/11/1977 2.52 05/07/1978 1.70 04/11/1979 1.85 06/26/1980 2.03 08/01/1981 2.59 05/29/1982 2.57 07/16/1983 2.27 06/20/1984 3.20 07/24/1986 5.65 03/17/1987 2.29 09/18/1988 2.00 04/26/1989 2.01 06/16/1990 3.84 06/04/1991 4.90 06/16/1992 1.70 06/16/1993 2.09 07/07/1994 2.12 07/04/1995 2.50 10/17/1996 1.74 09/15/1997 3.43 10/15/1998 4.91 07/10/2000 2.18 06/12/2001 3.38 08/05/2002 1.77 05/30/2004 3.13 09/06/2005 2.94 08/11/2006 3.34 05/04/2007 4.57 05/08/2008 1.52 06/08/2009 2.01 06/10/2010 4.69 Duration: 4 days 06/24/1952 1.69 04/29/1953 2.46 05/26/1954 1.84 07/10/1955 1.54 08/02/1956 4.38 05/14/1957 1.89 05/12/1958 2.49 05/28/1959 1.95 08/23/1960 3.66 10/08/1961 3.98 05/15/1962 5.67 06/22/1963 2.80 04/26/1964 1.17 05/21/1965 2.85 07/12/1966 2.31 06/16/1967 3.12 06/23/1968 2.17 10/04/1969 2.50 04/12/1970 2.64 10/27/1971 2.62 07/18/1972 5.25 08/31/1973 1.50 06/09/1974 1.98 06/08/1975 1.63 09/19/1976 2.01 03/11/1977 2.55 05/07/1978 1.72 04/11/1979 1.87 06/24/1980 2.48 08/01/1981 2.62 05/29/1982 2.60 07/16/1983 2.29 06/20/1984 3.23 07/24/1986 5.71 03/16/1987 2.39 09/16/1988 2.55 05/16/1989 2.15 06/16/1990 4.90 06/04/1991 4.95 06/16/1992 1.71 06/16/1993 2.29 07/07/1994 2.14 03/25/1995 2.56 09/03/1996 2.00 09/12/1997 3.46 10/15/1998 4.96 07/10/2000 2.20 06/10/2001 3.59 08/03/2002 1.91 05/30/2004 3.16 09/06/2005 2.97 08/11/2006 3.37 05/04/2007 4.61 05/08/2008 1.53 06/06/2009 2.11 06/10/2010 4.84 Duration: 7 days 06/20/1952 2.06 06/14/1953 2.52 05/27/1954 2.96 06/06/1955 1.59 08/02/1956 5.41 05/19/1957 2.77 07/02/1958 2.77 05/26/1959 1.97 08/23/1960 3.73 05/13/1961 4.36 05/16/1962 7.16 06/22/1963 3.07 04/21/1964 1.68 05/20/1965 3.69 08/15/1966 2.97 06/13/1967 5.55 06/19/1968 3.25 10/04/1969 2.52 04/12/1970 2.79 10/27/1971 2.65 05/23/1972 6.21 08/30/1973 1.56 06/04/1974 2.00 06/08/1975 1.97 09/13/1976 2.03 04/14/1977 2.61 04/17/1978 2.07 06/15/1979 2.03 06/22/1980 3.11 08/01/1981 2.64 05/24/1982 3.93 06/12/1983 2.48 06/05/1984 4.53 07/24/1986 5.77 03/17/1987 3.01 05/19/1988 2.76 04/26/1989 2.17 06/16/1990 5.35 05/30/1991 6.30 09/02/1992 2.66 07/17/1993 2.76 08/30/1994 2.32 04/15/1995 2.88 05/23/1996 2.07 09/09/1997 4.01 11/01/2000 2.63 06/10/2001 3.95 08/05/2002 2.73 05/30/2004 3.53 09/06/2005 5.64 08/11/2006 3.41 05/04/2007 4.66 10/06/2008 2.29 06/06/2009 2.39 06/10/2010 4.89 Duration: 10 days 06/20/1952 2.38 04/24/1953 3.62 05/26/1954 3.36 06/03/1955 2.21 07/30/1956 6.07 05/16/1957 3.76 07/02/1958 2.80 05/20/1959 2.14 08/17/1960 3.90 05/13/1961 4.40 05/13/1962 8.42 06/18/1963 3.14 06/22/1964 1.82 05/15/1965 3.93 08/12/1966 4.09 06/10/1967 6.09 06/21/1968 4.03 10/04/1969 2.80 04/12/1970 3.39 10/27/1971 2.67 05/22/1972 6.78 05/26/1973 1.79 05/21/1974 2.13 06/08/1975 2.91 09/19/1976 2.38 03/11/1977 2.65 04/17/1978 2.10 04/11/1979 2.37 08/09/1980 3.15 07/23/1981 4.08 10/01/1982 4.19 06/12/1983 3.53 06/02/1984 4.63 07/18/1986 5.85 03/16/1987 4.27 05/19/1988 2.79 06/18/1989 3.25 06/12/1990 5.60 05/28/1991 7.35 09/02/1992 2.69 06/16/1993 3.94 08/30/1994 2.34 04/10/1995 3.73 05/23/1996 2.32 09/09/1997 4.20 05/08/2000 3.22 06/05/2001 4.31 08/03/2002 3.77 05/30/2004 3.57 09/06/2005 5.74 08/11/2006 4.06 05/04/2007 4.71 10/06/2008 2.31 07/03/2009 2.96 06/05/2010 5.31 Duration: 20 days 06/14/1951 8.73 06/08/1952 2.95 06/02/1953 4.72 05/26/1954 4.52 05/23/1955 3.57 07/30/1956 6.92 05/13/1957 4.94 07/02/1958 3.23 08/13/1959 3.49 08/05/1960 5.80 05/05/1961 5.70 05/12/1962 10.16 06/22/1963 4.49 04/21/1964 2.57 05/20/1965 5.55 08/13/1966 5.90 06/04/1967 7.17 06/15/1968 4.59 07/07/1969 3.64 05/29/1970 3.80 06/16/1971 3.53 05/11/1972 8.93 08/30/1973 2.18 05/21/1974 4.11 06/04/1975 3.50 09/07/1976 3.56 03/11/1977 3.57 04/02/1978 3.27 05/30/1979 3.82 06/22/1980 3.82 07/22/1981 4.99 05/11/1982 6.33 06/12/1983 4.38 06/04/1984 8.54 07/09/1986 6.63 03/12/1987 4.52 05/19/1988 3.29 04/28/1989 3.85 06/12/1990 7.25 05/18/1991 8.55 08/22/1992 3.93 06/16/1993 5.43 06/18/1994 3.27 04/10/1995 4.47 05/08/1996 3.48 09/09/1997 4.86 07/05/2000 4.37 04/07/2001 6.35 07/28/2002 4.66 05/12/2004 6.59 09/06/2005 8.07 08/11/2006 5.19 04/21/2007 7.30 10/06/2008 3.70 05/23/2009 4.40 06/10/2010 9.18 Duration: 30 days 06/20/1952 3.72 05/30/1953 5.71 05/26/1954 6.60 05/23/1955 4.48 07/18/1956 6.92 05/13/1957 7.42 06/03/1958 4.19 05/20/1959 4.32 07/27/1960 7.19 04/20/1961 5.92 05/12/1962 12.31 06/09/1963 5.78 04/21/1964 3.41 05/14/1965 6.74 07/22/1966 6.59 05/28/1967 7.65 06/07/1968 5.59 06/19/1969 4.10 03/24/1970 4.28 10/27/1971 4.59 04/30/1972 11.46 08/30/1973 2.90 05/11/1974 5.54 05/22/1975 4.25 08/31/1976 3.65 03/11/1977 3.73 04/09/1978 4.26 05/30/1979 4.27 05/29/1980 5.92 07/11/1981 5.42 05/10/1982 7.79 06/10/1983 4.74 05/25/1984 9.98 07/24/1986 9.44 06/21/1987 5.32 05/19/1988 4.10 04/26/1989 4.72 06/12/1990 7.95 05/13/1991 8.75 06/16/1992 4.79 06/01/1993 7.45 06/09/1994 4.63 03/23/1995 6.90 05/23/1996 4.02 09/15/1997 5.70 07/10/2000 5.68 04/07/2001 7.67 07/21/2002 5.25 05/12/2004 8.61 09/06/2005 8.84 08/04/2006 7.66 04/10/2007 7.57 09/28/2008 4.34 05/23/2009 5.25 06/10/2010 11.15 Duration: 45 days 06/08/1952 4.34 05/21/1953 6.64 05/26/1954 7.82 06/08/1955 5.97 07/01/1956 10.47 05/13/1957 8.97 05/30/1958 5.39 05/26/1959 5.75 08/05/1960 8.04 05/05/1961 9.49 05/08/1962 14.96 06/18/1963 7.92 04/05/1964 4.09 05/14/1965 8.53 07/08/1966 9.05 05/28/1967 8.10 06/15/1968 6.89 06/13/1969 5.62 05/11/1970 4.71 05/21/1971 5.94 04/20/1972 12.41 08/30/1973 4.21 05/10/1974 7.54 05/07/1975 4.97 09/07/1976 3.80 03/11/1977 6.34 04/17/1978 5.95 05/30/1979 5.66 05/26/1980 7.02 06/21/1981 6.48 08/29/1982 8.82 06/10/1983 7.01 05/27/1984 10.82 07/24/1986 12.24 06/25/1987 6.41 05/19/1988 5.16 05/16/1989 5.89 05/14/1990 11.10 04/26/1991 11.61 06/16/1992 6.26 06/09/1993 9.06 05/25/1994 5.84 03/26/1995 8.68 05/08/1996 5.43 09/02/1997 6.66 06/23/2000 6.82 04/07/2001 8.14 07/21/2002 6.49 05/12/2004 9.39 08/26/2005 9.25 08/11/2006 9.80 03/24/2007 10.38 09/28/2008 4.88 06/06/2009 7.63 06/10/2010 13.73 Duration: 60 days 06/20/1952 6.09 04/24/1953 9.77 04/20/1954 8.39 05/26/1955 8.27 06/16/1956 11.22 05/13/1957 10.72 05/12/1958 7.91 05/20/1959 7.20 06/27/1960 9.13 04/20/1961 9.71 05/15/1962 18.35 06/01/1963 9.77 03/19/1964 4.98 05/14/1965 9.59 07/08/1966 11.12 05/17/1967 8.27 06/21/1968 9.48 06/11/1969 6.75 04/12/1970 6.32 05/09/1971 6.80 05/23/1972 14.91 05/26/1973 4.68 04/26/1974 7.99 04/24/1975 5.57 08/31/1976 3.96 03/11/1977 6.34 04/02/1978 7.61 05/30/1979 6.57 06/22/1980 8.34 06/07/1981 7.88 07/15/1982 10.66 06/10/1983 7.21 04/26/1984 11.78 07/24/1986 15.09 06/10/1987 7.35 07/24/1988 6.43 04/28/1989 7.84 05/12/1990 12.93 04/12/1991 13.28 06/06/1992 7.16 06/02/1993 11.83 06/15/1994 7.05 03/23/1995 10.26 09/03/1996 6.45 06/05/1997 7.55 05/26/2000 8.17 04/21/2001 9.72 07/21/2002 7.48 04/18/2004 10.64 08/03/2005 9.90 07/31/2006 10.52 04/21/2007 11.99 09/02/2008 5.94 05/23/2009 9.72 06/05/2010 16.53