Precipitation annual maximum series (inches) Station ID: 13-7602 Station name: SHELL ROCK State: IA Latitude (decimal degrees): 42.7117 Longitude (decimal degrees): -92.5847 Elevation (feet): 912 Duration: 15 minutes 06/22/1984 0.60 08/09/1985 0.60 06/23/1987 0.60 09/07/1989 0.50 07/27/1990 0.70 04/20/1992 0.50 06/07/1993 0.80 08/25/1994 1.50 06/02/1995 0.60 06/05/1996 0.40 06/20/1997 0.60 05/08/1998 0.50 07/03/2001 0.70 07/05/2002 0.30 07/05/2003 0.60 09/05/2004 0.60 06/26/2005 0.80 07/26/2006 0.40 02/25/2007 0.50 07/17/2008 0.90 07/10/2009 1.30 08/10/2010 1.00 Duration: 30 minutes 06/22/1984 1.00 08/09/1985 1.10 06/23/1987 1.10 09/07/1989 0.70 07/27/1990 0.90 08/06/1992 0.70 06/07/1993 0.90 08/25/1994 1.80 06/02/1995 0.80 08/22/1996 0.60 06/20/1997 0.80 05/08/1998 0.80 07/21/2001 1.00 07/05/2003 1.10 05/21/2004 0.90 06/26/2005 1.30 09/10/2006 0.70 08/20/2007 1.00 07/07/2008 1.30 07/10/2009 1.70 08/10/2010 1.40 Duration: 45 minutes 06/12/1984 1.00 08/09/1985 1.30 06/23/1987 1.10 10/05/1989 0.80 07/27/1990 1.10 08/06/1992 0.80 08/18/1993 1.10 08/25/1994 2.30 06/02/1995 0.90 08/22/1996 0.70 07/05/1997 0.90 05/23/1998 0.80 07/21/2001 1.20 08/04/2002 0.60 07/05/2003 1.20 05/21/2004 1.20 06/26/2005 1.50 09/10/2006 0.90 08/20/2007 1.30 07/07/2008 1.40 07/10/2009 1.80 08/10/2010 1.40 Duration: 1 hour 07/01/1949 1.20 07/31/1950 1.36 06/25/1951 1.78 06/14/1952 0.65 07/05/1953 0.87 10/02/1954 1.43 10/05/1955 1.25 06/26/1956 0.75 06/10/1957 0.96 05/31/1958 1.34 06/24/1959 1.74 08/13/1960 0.60 07/01/1961 1.38 05/28/1962 0.86 06/08/1963 1.95 06/22/1964 2.18 06/05/1965 1.12 08/20/1966 1.92 06/16/1967 1.01 08/07/1968 1.06 06/29/1969 0.72 09/09/1970 0.87 06/24/1971 1.01 07/01/1972 1.55 08/22/1973 1.24 05/28/1974 1.02 08/11/1975 0.79 04/15/1976 0.47 09/17/1977 1.58 08/28/1979 2.31 06/12/1984 1.19 08/09/1985 1.28 06/23/1987 1.01 09/07/1989 0.92 07/27/1990 1.19 08/06/1992 0.92 08/18/1993 1.10 08/13/1994 2.39 06/02/1995 0.83 08/22/1996 0.73 06/20/1997 0.83 05/08/1998 0.92 07/21/2001 1.19 07/05/2003 1.10 08/16/2004 1.19 06/26/2005 1.83 09/10/2006 0.92 07/22/2007 1.38 07/07/2008 1.28 07/10/2009 1.74 06/15/2010 1.38 Duration: 2 hours 07/01/1949 1.45 07/31/1950 1.43 06/25/1951 2.31 06/14/1952 0.92 08/03/1953 1.34 10/02/1954 1.69 10/05/1955 1.45 06/26/1956 0.94 06/10/1957 1.01 05/31/1958 1.77 06/24/1959 2.38 04/16/1960 0.93 07/01/1961 1.47 05/28/1962 1.27 05/09/1963 2.34 06/22/1964 2.41 07/08/1965 1.54 08/20/1966 2.72 06/16/1967 1.56 07/23/1968 1.59 06/29/1969 0.95 09/09/1970 1.10 06/24/1971 1.18 07/01/1972 1.65 07/03/1973 1.54 05/28/1974 1.97 08/19/1975 1.26 04/15/1976 0.70 09/17/1977 2.47 08/28/1979 3.03 06/12/1984 1.54 08/09/1985 1.35 06/23/1987 1.06 09/07/1989 1.63 06/05/1990 1.54 07/30/1992 1.35 08/18/1993 1.35 08/13/1994 3.94 06/02/1995 0.87 08/22/1996 0.96 06/20/1997 0.87 05/23/1998 1.54 07/21/2001 1.92 07/05/2003 1.44 09/05/2004 1.35 06/26/2005 2.69 09/10/2006 1.44 08/20/2007 1.63 07/07/2008 1.83 07/10/2009 2.40 08/10/2010 1.63 Duration: 3 hours 07/01/1949 1.85 07/31/1950 1.46 06/25/1951 2.78 06/14/1952 1.05 08/02/1953 1.37 10/02/1954 1.72 10/05/1955 1.75 06/26/1956 1.00 06/10/1957 1.03 05/31/1958 2.04 06/24/1959 3.19 04/16/1960 1.10 07/01/1961 1.64 05/28/1962 1.40 05/09/1963 3.00 06/22/1964 2.53 07/08/1965 1.62 08/20/1966 3.27 06/16/1967 1.59 07/23/1968 1.74 07/08/1969 1.24 10/08/1970 1.21 06/24/1971 1.32 09/25/1972 1.83 08/22/1973 1.57 05/28/1974 2.07 08/19/1975 1.28 04/17/1976 0.90 09/17/1977 2.89 08/28/1979 3.43 06/12/1984 1.70 08/09/1985 1.40 06/23/1987 1.10 09/07/1989 1.90 07/26/1990 2.00 07/30/1992 1.50 06/07/1993 1.60 08/13/1994 4.80 08/29/1995 1.00 08/22/1996 1.10 06/20/1997 0.90 05/23/1998 1.80 07/21/2001 2.40 07/05/2003 1.70 05/21/2004 1.70 06/26/2005 2.90 09/10/2006 1.60 07/22/2007 1.70 07/07/2008 1.90 07/10/2009 2.60 07/23/2010 1.80 Duration: 6 hours 07/01/1949 1.96 06/08/1950 1.79 06/25/1951 3.31 05/07/1952 1.33 06/25/1953 1.39 10/02/1954 1.98 10/05/1955 2.94 11/14/1956 1.13 08/23/1957 1.08 05/31/1958 2.19 06/24/1959 3.70 09/18/1960 1.26 07/01/1961 1.72 03/18/1962 2.47 05/09/1963 3.03 09/08/1964 3.10 07/08/1965 1.64 08/20/1966 3.64 06/16/1967 1.61 07/23/1968 1.76 07/08/1969 1.77 10/08/1970 1.88 06/24/1971 1.33 07/01/1972 1.98 09/08/1973 1.62 06/08/1974 2.75 08/19/1975 1.30 04/17/1976 1.61 09/17/1977 3.34 08/28/1979 3.46 06/12/1984 2.50 08/29/1985 1.60 07/11/1987 1.50 09/07/1989 2.20 07/26/1990 3.20 07/30/1992 1.70 06/07/1993 2.00 08/13/1994 5.50 08/29/1995 1.40 08/22/1996 1.30 06/20/1997 1.30 05/23/1998 1.82 07/21/2001 2.50 07/05/2003 1.80 05/21/2004 2.30 06/26/2005 3.70 09/10/2006 2.60 07/22/2007 1.80 07/07/2008 1.92 07/10/2009 3.30 07/22/2010 2.40 Duration: 12 hours 07/01/1949 2.00 06/17/1950 1.89 06/25/1951 3.45 05/07/1952 1.88 06/25/1953 1.53 10/02/1954 2.40 10/05/1955 3.03 07/31/1956 1.25 08/23/1957 1.16 07/03/1958 2.25 06/24/1959 4.20 04/16/1960 1.40 07/01/1961 1.74 03/18/1962 3.70 06/08/1963 3.18 09/08/1964 3.13 07/08/1965 1.66 08/20/1966 3.78 06/16/1967 1.63 09/03/1968 2.37 07/08/1969 2.01 10/08/1970 2.68 09/04/1971 1.42 08/01/1972 2.11 09/08/1973 1.80 06/08/1974 2.86 08/19/1975 1.31 04/17/1976 2.30 09/17/1977 3.37 08/28/1979 3.50 06/12/1984 2.52 08/28/1985 2.20 07/11/1987 2.10 09/07/1989 2.30 07/26/1990 3.30 11/01/1992 1.80 07/17/1993 2.20 08/13/1994 5.55 08/28/1995 2.00 10/22/1996 1.31 04/30/1997 1.31 05/23/1998 1.90 05/16/1999 4.40 07/21/2001 2.60 07/05/2003 1.82 05/21/2004 3.90 06/26/2005 3.90 09/10/2006 3.30 08/19/2007 3.20 04/24/2008 2.40 07/10/2009 3.40 07/22/2010 2.80 Duration: 1 day 07/01/1949 1.79 05/08/1950 1.77 08/25/1951 3.08 05/07/1952 1.68 08/03/1953 1.82 10/02/1954 2.22 10/05/1955 2.71 07/31/1956 1.12 08/23/1957 1.20 05/31/1958 2.01 06/24/1959 3.75 05/06/1960 1.89 07/01/1961 1.55 03/18/1962 3.30 06/08/1963 3.37 09/08/1964 2.80 06/05/1965 1.67 08/20/1966 3.40 06/16/1967 1.45 09/04/1968 2.12 07/08/1969 2.33 10/08/1970 2.87 01/03/1971 1.52 08/01/1972 2.36 09/08/1973 2.24 05/28/1974 2.58 08/19/1975 1.17 04/17/1976 3.09 09/17/1977 3.46 08/28/1979 3.12 05/25/1984 2.32 08/29/1985 2.05 06/23/1987 1.88 09/07/1989 2.23 11/01/1992 2.41 07/17/1993 1.96 08/13/1994 5.54 06/29/1995 1.88 10/22/1996 1.61 04/30/1997 1.43 05/23/1998 1.70 05/16/1999 4.11 07/21/2001 2.32 11/03/2003 2.05 05/21/2004 3.93 06/26/2005 3.48 08/19/2007 4.02 05/29/2008 2.68 07/10/2009 3.04 07/23/2010 2.95 Duration: 2 days 06/22/1949 2.00 05/08/1950 1.91 06/25/1951 3.39 05/21/1952 2.20 08/02/1953 2.43 10/01/1954 2.52 10/04/1955 2.98 09/04/1956 1.45 08/27/1957 1.70 05/30/1958 2.48 06/24/1959 4.23 04/16/1960 2.17 07/01/1961 1.77 03/18/1962 3.56 06/08/1963 4.60 09/08/1964 3.02 06/04/1965 2.48 08/20/1966 3.66 06/07/1967 1.85 09/03/1968 3.03 07/07/1969 3.47 10/08/1970 3.20 01/03/1971 1.64 07/11/1972 2.54 07/03/1973 2.67 06/08/1974 2.95 08/19/1975 1.45 07/27/1976 3.46 09/17/1977 3.73 08/28/1979 3.37 06/12/1984 2.50 08/28/1985 2.21 06/23/1987 2.06 09/07/1989 2.60 07/26/1990 5.77 11/01/1992 2.98 06/07/1993 2.40 08/12/1994 6.06 08/28/1995 2.02 10/22/1996 1.83 06/20/1997 2.12 10/03/1998 1.92 07/21/2001 2.79 11/03/2003 2.50 05/21/2004 5.48 06/25/2005 5.77 08/19/2007 5.29 05/29/2008 2.98 04/25/2009 3.46 07/22/2010 4.90 Duration: 3 days 06/22/1949 2.26 06/12/1950 2.03 06/25/1951 3.53 05/21/1952 2.29 08/02/1953 2.53 09/30/1954 2.67 10/05/1955 3.10 08/28/1956 1.59 08/27/1957 2.21 07/02/1958 2.75 06/24/1959 4.40 04/16/1960 2.26 09/01/1961 1.84 03/18/1962 3.70 06/07/1963 4.78 09/08/1964 3.81 08/16/1965 2.58 08/20/1966 3.81 06/07/1967 2.24 07/21/1968 3.15 07/06/1969 3.71 10/08/1970 3.33 01/03/1971 1.70 07/11/1972 2.64 07/02/1973 2.83 06/07/1974 3.12 08/18/1975 1.52 04/15/1976 3.65 09/17/1977 3.88 08/28/1979 3.43 06/12/1984 2.60 08/28/1985 2.30 07/12/1987 2.10 09/07/1989 2.80 07/26/1990 6.50 10/31/1992 3.10 03/30/1993 2.50 08/11/1994 6.40 08/28/1995 2.10 10/22/1996 1.90 06/20/1997 2.20 10/02/1998 2.50 07/19/2001 3.00 06/06/2003 2.80 05/21/2004 5.80 06/24/2005 6.00 08/18/2007 5.70 05/29/2008 3.10 04/24/2009 3.70 07/22/2010 5.20 Duration: 4 days 06/20/1949 3.36 05/05/1950 2.56 06/25/1951 3.56 05/21/1952 2.31 08/02/1953 2.55 09/29/1954 3.10 10/04/1955 3.15 08/28/1956 1.61 08/27/1957 2.32 07/02/1958 2.78 06/24/1959 4.63 09/18/1960 2.36 07/01/1961 2.80 03/18/1962 3.74 06/07/1963 4.83 09/08/1964 3.85 08/16/1965 2.61 08/20/1966 3.85 06/07/1967 2.76 07/21/1968 3.18 07/06/1969 3.91 10/08/1970 3.40 10/27/1971 1.99 09/25/1972 3.13 07/01/1973 2.86 06/06/1974 3.30 08/19/1975 1.61 04/17/1976 4.59 09/17/1977 3.92 08/28/1979 3.46 05/25/1984 2.90 09/22/1985 2.80 07/11/1987 2.49 09/04/1989 2.83 07/26/1990 6.60 10/31/1992 3.13 08/15/1993 3.00 08/10/1994 6.90 08/28/1995 2.20 05/25/1996 2.00 06/19/1997 2.40 10/02/1998 2.60 07/21/2001 3.90 07/05/2003 4.00 05/21/2004 6.40 06/24/2005 6.20 08/18/2007 6.00 04/22/2008 3.20 04/24/2009 4.00 07/22/2010 5.25 Duration: 7 days 06/18/1949 3.59 06/12/1950 3.92 04/25/1951 4.65 05/21/1952 2.74 07/28/1953 3.70 09/28/1954 3.60 09/29/1955 3.32 04/27/1956 2.32 08/23/1957 3.37 05/30/1958 3.07 06/24/1959 6.90 09/18/1960 3.65 07/01/1961 3.17 03/18/1962 3.78 06/07/1963 5.14 09/03/1964 3.89 08/16/1965 2.87 07/08/1966 4.68 06/07/1967 3.98 07/17/1968 3.90 07/06/1969 3.95 10/08/1970 3.43 10/27/1971 3.01 09/25/1972 3.16 07/02/1973 2.89 06/03/1974 3.43 04/21/1975 2.23 04/14/1976 5.69 09/17/1977 5.83 08/17/1979 3.59 06/12/1984 3.50 09/23/1985 3.90 07/08/1987 3.30 09/03/1989 3.30 07/07/1992 3.80 08/16/1993 3.70 08/10/1994 6.97 06/02/1995 2.50 05/22/1996 2.50 06/18/1997 2.80 05/23/1998 3.50 05/11/1999 6.70 07/19/2001 4.40 07/04/2003 4.70 05/21/2004 6.46 06/24/2005 6.50 08/18/2007 6.70 05/25/2008 4.10 07/08/2009 4.60 07/22/2010 5.30 Duration: 10 days 06/22/1949 4.26 06/09/1950 5.17 04/20/1951 5.39 05/21/1952 2.96 07/26/1953 4.40 08/17/1954 3.81 07/02/1955 3.97 08/28/1956 3.09 08/23/1957 3.48 05/30/1958 3.53 06/24/1959 6.97 09/16/1960 4.59 07/01/1961 3.20 03/18/1962 3.81 06/05/1963 5.21 09/03/1964 4.56 08/29/1965 3.85 07/05/1966 4.75 06/07/1967 5.54 07/17/1968 3.94 06/29/1969 4.96 09/09/1970 3.47 10/27/1971 3.04 09/25/1972 3.47 04/29/1973 3.07 06/06/1974 3.56 08/10/1975 2.74 04/15/1976 6.19 09/17/1977 5.89 08/19/1979 5.90 06/12/1984 4.20 09/22/1985 5.20 06/17/1987 3.33 08/31/1989 3.50 07/19/1990 7.70 07/07/1992 4.10 07/08/1993 5.20 08/10/1994 7.04 08/28/1995 2.80 05/23/1996 3.40 06/20/1997 3.40 06/11/1998 4.50 07/17/2001 4.90 04/29/2003 5.10 05/21/2004 8.10 06/21/2005 6.70 08/15/2007 7.20 05/29/2008 5.80 07/07/2009 4.70 07/22/2010 5.90 Duration: 20 days 06/12/1949 7.03 06/01/1950 6.77 06/25/1951 6.76 05/07/1952 4.40 07/26/1953 4.40 09/28/1954 6.00 09/21/1955 4.67 04/26/1956 3.95 08/13/1957 4.66 05/30/1958 4.46 06/24/1959 7.09 04/17/1960 4.97 02/17/1961 4.25 07/01/1962 6.39 04/24/1963 7.20 08/22/1964 6.05 08/16/1965 5.19 06/25/1966 6.57 06/05/1967 6.36 07/21/1968 6.20 06/21/1969 7.72 05/10/1970 5.02 05/18/1971 3.62 06/27/1972 5.45 08/21/1973 4.96 05/21/1974 6.26 08/10/1975 3.67 04/14/1976 6.52 09/12/1977 8.28 08/09/1979 7.91 06/09/1984 6.30 09/22/1985 5.90 08/07/1987 4.30 08/19/1989 4.40 07/10/1990 9.30 07/12/1992 5.80 07/08/1993 6.70 08/10/1994 10.50 08/10/1995 4.10 05/19/1996 5.00 06/17/1997 4.80 06/08/1998 6.60 07/17/2001 5.40 04/26/2003 6.00 05/13/2004 9.00 06/08/2005 7.30 08/04/2007 8.80 05/23/2008 8.00 04/24/2009 6.60 07/22/2010 8.90 Duration: 30 days 06/12/1949 7.61 05/20/1950 7.70 04/20/1951 9.58 05/07/1952 5.38 07/05/1953 6.55 09/28/1954 6.46 09/12/1955 5.46 08/08/1956 4.68 08/13/1957 5.58 05/30/1958 5.83 07/29/1959 7.98 04/13/1960 6.44 09/01/1961 5.34 07/01/1962 8.12 06/07/1963 8.23 08/20/1964 6.79 08/16/1965 7.53 06/20/1966 6.67 06/04/1967 7.78 07/17/1968 7.20 06/11/1969 9.71 09/09/1970 7.01 05/17/1971 4.18 07/08/1972 6.34 04/08/1973 5.98 05/28/1974 7.22 08/10/1975 4.12 03/26/1976 7.88 09/12/1977 9.35 07/30/1979 9.76 05/24/1984 9.10 09/22/1985 7.20 06/17/1987 6.60 08/19/1989 4.80 07/08/1992 8.20 07/05/1993 8.80 08/10/1994 11.60 08/09/1995 4.90 05/19/1996 6.50 06/18/1997 5.70 05/23/1998 9.60 05/12/1999 11.80 07/03/2001 6.30 04/16/2003 7.50 05/13/2004 9.80 06/04/2005 8.60 07/22/2007 10.40 03/27/2008 9.50 04/24/2009 7.30 06/05/2010 10.40 Duration: 45 days 06/12/1949 9.21 05/05/1950 11.72 04/20/1951 11.72 05/07/1952 7.87 06/25/1953 8.57 04/20/1954 7.62 09/12/1955 5.76 07/28/1956 6.75 08/09/1957 6.93 05/31/1958 8.85 06/24/1959 11.08 04/13/1960 7.98 09/01/1961 6.51 06/17/1962 8.70 06/05/1963 12.39 07/30/1964 7.98 08/16/1965 10.65 07/08/1966 9.41 05/27/1967 8.39 06/25/1968 9.07 06/06/1969 10.75 09/01/1970 8.26 05/17/1971 6.51 06/27/1972 9.00 08/21/1973 7.66 05/07/1974 9.12 07/23/1975 4.73 04/15/1976 8.87 08/15/1977 12.01 07/24/1979 11.15 05/17/1984 10.20 08/21/1985 10.10 07/08/1987 7.30 08/23/1989 5.80 06/13/1990 13.80 07/07/1992 9.70 06/04/1993 12.30 07/13/1994 12.80 05/22/1995 6.40 05/08/1996 8.10 06/15/1997 7.60 05/23/1998 11.20 04/30/2001 7.60 04/29/2003 9.50 05/21/2004 11.80 05/17/2005 9.50 07/16/2007 13.00 04/24/2008 11.70 04/25/2009 9.50 06/10/2010 13.70 Duration: 60 days 05/21/1949 11.02 04/23/1950 14.09 04/05/1951 13.66 05/21/1952 9.61 06/05/1953 10.17 08/16/1954 11.48 05/22/1955 6.10 07/18/1956 7.18 07/27/1957 8.80 05/30/1958 10.75 06/24/1959 14.34 08/05/1960 8.82 09/01/1961 7.74 05/26/1962 10.13 06/07/1963 13.89 07/30/1964 8.36 08/03/1965 11.39 05/17/1966 11.56 05/10/1967 9.74 06/10/1968 10.98 05/10/1969 12.65 09/01/1970 8.77 05/17/1971 7.63 06/05/1972 10.59 04/08/1973 8.84 05/07/1974 10.38 04/23/1975 6.73 04/15/1976 10.17 08/09/1977 14.63 07/03/1979 12.76 05/21/1984 13.00 08/09/1985 11.80 06/17/1987 9.90 08/19/1989 7.30 06/05/1990 16.30 06/16/1992 11.60 06/04/1993 15.30 08/10/1994 16.00 08/09/1995 8.20 04/18/1996 9.30 06/17/1997 9.00 05/06/1998 12.50 05/26/2001 9.20 04/16/2003 11.10 05/08/2004 13.60 05/03/2005 12.50 07/16/2007 13.80 04/10/2008 17.30 04/25/2009 12.10 06/01/2010 17.40