Precipitation annual maximum series (inches) Station ID: 21-2248 Station name: DULUTH INTL AP State: MN Latitude (decimal degrees): 46.8369 Longitude (decimal degrees): -92.1833 Elevation (feet): 1433 Duration: 1 hour 07/31/1950 0.82 08/28/1951 0.70 06/23/1952 1.90 05/10/1953 0.78 06/11/1954 1.16 08/02/1955 0.85 08/12/1956 0.99 06/21/1957 2.49 06/30/1958 0.82 06/09/1959 1.05 06/28/1960 0.81 07/29/1961 0.69 06/28/1962 0.84 06/25/1963 1.33 09/06/1964 0.93 07/16/1965 1.29 07/17/1966 1.42 06/14/1967 1.12 07/13/1968 1.75 08/28/1969 0.92 07/07/1970 0.76 08/17/1971 1.49 08/20/1972 1.48 10/09/1973 1.06 07/21/1974 1.75 06/29/1975 0.64 06/14/1976 0.90 07/16/1977 0.90 08/22/1978 0.86 05/09/1979 0.92 08/10/1980 1.24 07/20/1981 1.00 07/24/1982 1.10 09/10/1983 1.00 06/22/1984 0.74 06/16/1985 0.76 06/21/1986 1.18 07/18/1987 0.78 06/18/1988 1.02 05/24/1989 1.40 09/05/1990 0.94 05/27/1991 1.27 07/01/1992 0.57 06/23/1993 0.73 08/25/1994 0.87 08/18/1995 1.49 07/06/1996 1.28 06/24/1997 0.83 06/01/1998 0.77 07/05/1999 1.40 07/08/2000 0.77 08/01/2001 0.70 06/22/2002 1.18 09/18/2003 0.51 07/11/2004 1.14 08/03/2005 1.19 06/17/2006 0.89 05/21/2007 0.62 07/11/2008 0.96 09/09/2009 0.95 05/23/2010 1.77 Duration: 2 hours 07/31/1950 1.00 08/28/1951 1.36 06/23/1952 2.16 05/10/1953 1.18 06/11/1954 1.22 09/16/1955 1.31 08/12/1956 1.05 06/21/1957 2.68 06/30/1958 1.41 07/07/1959 1.33 05/20/1960 0.85 07/29/1961 0.73 05/22/1962 0.91 06/25/1963 1.45 09/06/1964 1.36 07/16/1965 1.35 07/17/1966 1.84 06/14/1967 1.68 07/13/1968 1.86 08/28/1969 0.97 07/18/1970 0.84 08/17/1971 1.56 08/20/1972 2.69 10/09/1973 1.46 07/21/1974 2.49 06/29/1975 0.67 07/19/1976 1.32 07/16/1977 0.97 08/23/1978 1.52 05/09/1979 1.30 09/03/1980 1.62 07/20/1981 1.05 07/24/1982 1.15 09/10/1983 1.24 06/22/1984 0.96 09/02/1985 1.10 06/21/1986 1.34 07/17/1987 1.38 06/18/1988 1.34 05/24/1989 1.47 08/18/1990 1.34 09/07/1991 1.99 07/01/1992 0.92 06/23/1993 1.26 08/25/1994 1.05 08/18/1995 1.56 08/06/1996 1.54 06/24/1997 1.46 06/01/1998 0.97 07/05/1999 2.02 08/14/2000 1.36 08/01/2001 1.08 06/22/2002 1.31 05/19/2003 0.74 07/11/2004 1.33 08/03/2005 1.41 06/17/2006 1.13 08/27/2007 0.84 06/05/2008 1.44 07/14/2009 1.07 05/23/2010 2.70 Duration: 3 hours 07/31/1950 1.30 08/28/1951 1.59 06/23/1952 2.33 08/05/1953 1.21 06/11/1954 1.24 09/16/1955 1.34 08/12/1956 1.12 06/21/1957 2.73 06/30/1958 1.82 08/30/1959 1.82 11/28/1960 0.95 06/30/1961 0.74 05/22/1962 1.16 06/25/1963 1.48 08/20/1964 1.57 07/16/1965 1.38 07/17/1966 1.88 06/14/1967 1.82 07/13/1968 1.91 08/28/1969 0.99 07/18/1970 0.90 08/17/1971 1.84 08/20/1972 2.93 10/09/1973 1.75 07/21/1974 2.98 09/18/1975 0.79 07/19/1976 1.35 09/23/1977 1.27 08/22/1978 1.87 05/09/1979 1.78 09/03/1980 2.22 08/06/1981 1.09 07/24/1982 1.18 07/03/1983 1.51 06/22/1984 1.01 09/02/1985 1.40 06/21/1986 1.39 07/17/1987 2.00 06/18/1988 1.57 05/24/1989 1.72 08/18/1990 1.75 09/07/1991 2.14 06/30/1992 1.21 06/23/1993 1.36 08/25/1994 1.17 08/18/1995 1.59 08/06/1996 1.57 06/24/1997 1.68 06/01/1998 0.99 07/05/1999 2.23 08/14/2000 1.39 08/01/2001 1.10 06/22/2002 1.87 09/18/2003 0.93 07/11/2004 1.55 10/03/2005 1.91 05/29/2006 1.42 09/18/2007 0.99 06/05/2008 1.91 08/19/2009 1.31 05/23/2010 3.57 Duration: 6 hours 07/31/1950 1.48 06/19/1951 1.88 06/23/1952 2.90 07/01/1953 1.46 05/30/1954 1.38 09/16/1955 2.39 08/12/1956 1.13 06/21/1957 2.76 06/30/1958 3.40 07/07/1959 2.29 11/28/1960 1.37 04/20/1961 1.08 05/22/1962 1.47 06/25/1963 1.49 09/07/1964 2.07 10/17/1965 1.56 07/17/1966 1.90 06/14/1967 1.84 07/13/1968 1.94 08/28/1969 1.00 07/18/1970 1.52 08/17/1971 2.08 09/20/1972 2.98 08/15/1973 2.15 07/21/1974 3.25 07/02/1975 1.00 07/19/1976 1.36 09/23/1977 2.29 08/22/1978 2.99 05/09/1979 2.52 09/03/1980 2.32 08/06/1981 1.22 10/05/1982 1.52 07/03/1983 1.91 09/23/1984 1.34 09/02/1985 1.93 06/10/1986 2.41 07/17/1987 2.32 09/19/1988 2.34 09/20/1989 2.00 08/18/1990 2.46 09/07/1991 2.59 06/30/1992 1.73 06/23/1993 1.69 08/25/1994 1.22 08/18/1995 1.61 08/06/1996 1.87 06/24/1997 1.86 11/10/1998 1.19 07/05/1999 2.35 08/14/2000 1.50 04/22/2001 1.23 07/07/2002 2.66 05/19/2003 1.50 07/11/2004 1.71 10/03/2005 2.08 06/17/2006 1.53 09/18/2007 1.27 06/05/2008 2.07 08/19/2009 2.22 05/23/2010 3.93 Duration: 12 hours 07/03/1949 2.61 10/01/1950 2.26 08/28/1951 2.64 06/23/1952 2.99 08/03/1953 1.70 05/30/1954 1.44 09/16/1955 2.71 08/12/1956 1.14 06/21/1957 2.84 06/30/1958 3.51 07/07/1959 2.56 11/28/1960 1.76 03/27/1961 1.47 05/22/1962 1.66 08/11/1963 1.52 09/06/1964 3.05 10/17/1965 1.59 07/17/1966 1.92 06/14/1967 1.86 11/16/1968 2.00 08/28/1969 1.01 07/18/1970 1.54 08/17/1971 2.61 09/20/1972 3.77 10/09/1973 2.55 07/21/1974 3.40 11/19/1975 1.11 06/24/1976 1.42 09/23/1977 2.97 08/22/1978 5.36 05/09/1979 3.00 09/03/1980 2.34 08/06/1981 1.29 10/05/1982 1.78 07/03/1983 2.47 09/23/1984 1.99 09/02/1985 2.37 06/10/1986 2.75 07/17/1987 2.34 09/19/1988 2.64 09/20/1989 2.14 09/05/1990 2.97 09/06/1991 3.38 06/30/1992 2.02 06/23/1993 1.72 11/27/1994 1.34 05/13/1995 1.70 07/06/1996 2.55 06/24/1997 2.62 11/10/1998 1.84 07/05/1999 2.42 03/08/2000 1.53 04/22/2001 1.81 07/07/2002 3.00 05/19/2003 1.83 07/11/2004 1.76 10/03/2005 2.10 06/17/2006 1.55 10/18/2007 2.10 06/05/2008 2.40 08/19/2009 2.89 05/23/2010 3.97 Duration: 1 day 08/29/1942 2.39 08/01/1943 1.76 08/30/1944 2.18 07/27/1945 1.88 10/05/1946 1.92 08/13/1947 1.59 10/08/1949 2.76 10/01/1950 2.51 08/28/1951 2.65 06/23/1952 3.08 07/01/1953 1.88 04/30/1954 2.03 09/16/1955 2.44 08/03/1956 1.31 06/21/1957 3.06 06/30/1958 3.62 09/07/1964 3.27 03/17/1965 1.73 10/14/1966 1.73 06/14/1967 1.67 11/17/1968 2.36 01/23/1969 1.21 07/18/1970 1.83 10/27/1971 2.33 09/20/1972 3.37 10/09/1973 2.59 07/21/1974 3.04 11/20/1975 1.62 06/25/1976 1.50 03/12/1977 3.03 08/22/1978 5.17 05/09/1979 2.90 09/03/1980 3.02 08/06/1981 1.44 10/06/1982 2.20 07/03/1983 2.40 10/16/1984 1.95 09/02/1985 2.40 06/10/1986 2.56 07/18/1987 3.29 09/19/1988 2.39 09/20/1989 1.91 08/18/1990 2.79 09/07/1991 3.23 07/01/1992 1.88 06/23/1993 1.93 11/27/1994 1.65 05/13/1995 2.42 06/24/1997 2.65 07/05/1999 2.91 04/07/2001 2.19 06/22/2002 3.33 07/11/2004 1.58 10/03/2005 2.52 09/22/2006 1.76 10/18/2007 2.38 06/05/2008 2.22 08/19/2009 2.60 05/23/2010 3.54 06/20/2012 6.52 Duration: 2 days 07/16/1942 2.57 08/01/1943 1.90 05/02/1944 2.99 07/26/1945 2.22 10/04/1946 2.07 08/12/1947 1.71 07/03/1949 4.23 10/01/1950 3.17 08/27/1951 2.88 06/23/1952 3.52 06/30/1953 2.38 04/30/1954 2.31 09/16/1955 2.88 08/03/1956 1.48 06/21/1957 3.86 06/30/1958 3.90 09/06/1964 3.84 03/17/1965 2.34 10/14/1966 2.65 06/14/1967 2.22 11/16/1968 2.71 09/14/1969 1.43 07/18/1970 2.72 08/17/1971 2.91 08/20/1972 3.80 10/09/1973 3.00 07/21/1974 3.27 11/19/1975 2.23 06/14/1976 1.62 09/23/1977 3.48 08/22/1978 5.57 05/09/1979 3.24 09/02/1980 3.29 04/22/1981 1.88 10/05/1982 2.39 07/03/1983 3.11 09/23/1984 2.30 09/02/1985 2.59 06/10/1986 2.76 07/17/1987 3.61 09/18/1988 2.88 09/19/1989 2.62 09/05/1990 3.03 09/07/1991 5.69 07/01/1992 3.03 06/23/1993 2.09 04/25/1994 1.90 08/24/1995 2.78 06/23/1997 2.85 07/04/1999 3.15 04/22/2001 3.05 06/22/2002 3.59 07/11/2004 1.70 10/03/2005 4.04 09/22/2006 2.32 10/18/2007 3.03 06/05/2008 2.49 08/19/2009 2.97 06/20/2012 7.02 Duration: 3 days 08/29/1942 2.62 06/12/1943 1.92 05/01/1944 3.11 07/26/1945 2.24 10/28/1946 2.34 08/12/1947 1.73 10/08/1949 4.47 09/30/1950 3.56 08/28/1951 3.89 06/23/1952 3.66 08/03/1953 2.75 04/30/1954 2.81 07/28/1955 3.00 08/03/1956 1.54 06/21/1957 4.10 06/30/1958 4.05 09/06/1964 3.99 10/17/1965 2.76 10/14/1966 2.76 06/13/1967 2.33 11/16/1968 2.82 12/06/1969 1.52 10/07/1970 2.93 08/17/1971 3.03 08/20/1972 4.03 10/09/1973 4.18 07/19/1974 3.65 11/18/1975 2.40 06/12/1976 2.37 09/22/1977 3.80 08/22/1978 5.79 05/07/1979 3.56 09/01/1980 3.78 04/21/1981 2.16 10/05/1982 2.49 07/02/1983 3.23 10/16/1984 2.39 09/02/1985 2.69 06/10/1986 2.87 07/17/1987 3.75 09/18/1988 2.99 09/19/1989 2.78 09/04/1990 3.47 09/07/1991 6.10 06/30/1992 3.18 06/23/1993 2.17 04/25/1994 1.98 08/24/1995 2.89 06/23/1997 2.88 07/03/1999 3.52 04/21/2001 4.08 06/22/2002 4.18 07/11/2004 1.77 10/03/2005 4.21 09/21/2006 2.41 10/16/2007 3.26 06/04/2008 2.60 08/19/2009 3.09 06/20/2012 7.09 Duration: 4 days 08/26/1942 3.07 06/11/1943 2.51 04/30/1944 3.15 07/27/1945 2.33 10/28/1946 2.36 11/04/1947 1.83 10/07/1949 4.79 09/29/1950 3.79 08/27/1951 4.00 06/21/1952 3.70 08/03/1953 3.69 04/30/1954 2.97 07/28/1955 3.03 08/03/1956 1.56 06/20/1957 4.65 06/30/1958 4.09 09/06/1964 4.49 10/17/1965 2.79 10/14/1966 2.79 06/12/1967 2.64 04/20/1968 3.13 12/06/1969 1.60 10/06/1970 2.96 10/27/1971 3.83 08/18/1972 4.09 10/09/1973 4.22 07/21/1974 3.69 11/18/1975 2.42 06/12/1976 2.93 09/22/1977 3.92 08/22/1978 5.85 05/07/1979 3.88 08/31/1980 3.82 04/21/1981 2.18 10/06/1982 2.69 07/02/1983 3.26 10/16/1984 3.36 08/31/1985 2.81 06/07/1986 3.46 07/17/1987 3.98 09/16/1988 4.17 09/19/1989 2.81 09/03/1990 3.52 09/06/1991 6.16 06/30/1992 3.21 07/01/1993 2.77 09/12/1994 2.49 08/24/1995 3.37 06/23/1997 2.91 07/05/1999 5.07 04/20/2001 4.12 06/19/2002 4.28 08/07/2004 2.04 10/03/2005 4.25 07/28/2006 2.47 10/16/2007 3.73 06/05/2008 2.82 08/16/2009 3.32 06/20/2012 7.16 Duration: 7 days 08/26/1942 3.49 07/26/1943 3.21 05/29/1944 3.52 09/18/1945 3.40 10/04/1946 2.83 06/04/1947 2.67 06/30/1949 6.44 05/02/1950 4.23 08/25/1951 4.31 06/23/1952 4.28 08/01/1953 4.45 04/26/1954 3.75 07/28/1955 4.43 08/03/1956 2.60 06/17/1957 5.29 06/30/1958 4.42 09/06/1964 4.53 10/14/1965 2.82 08/01/1966 3.26 06/13/1967 3.64 06/05/1968 3.55 01/23/1969 2.45 10/06/1970 3.19 10/27/1971 3.96 08/15/1972 7.91 08/13/1973 4.26 07/19/1974 3.94 06/11/1975 3.34 06/12/1976 3.19 09/19/1977 4.08 08/17/1978 5.94 05/05/1979 4.18 09/02/1980 4.32 04/21/1981 2.51 10/01/1982 3.63 06/29/1983 3.99 10/15/1984 4.25 08/28/1985 3.15 06/07/1986 3.55 07/17/1987 4.02 09/15/1988 4.41 08/30/1989 3.32 09/03/1990 4.24 09/02/1991 6.45 06/30/1992 3.24 07/01/1993 4.09 06/14/1994 2.64 08/24/1995 3.67 06/23/1997 3.37 07/03/1999 5.46 04/20/2001 4.16 06/18/2002 5.17 08/07/2004 2.41 10/03/2005 4.29 07/25/2006 2.57 10/16/2007 3.77 06/05/2008 3.83 08/15/2009 3.73 06/20/2012 7.23 Duration: 10 days 08/26/1942 3.52 07/23/1943 3.48 05/01/1944 3.62 09/18/1945 3.69 10/03/1946 3.00 06/04/1947 3.42 06/30/1949 6.53 04/30/1950 4.82 08/27/1951 4.47 06/15/1952 5.22 08/03/1953 5.04 04/25/1954 4.14 07/26/1955 4.81 08/03/1956 3.76 06/14/1957 6.12 06/30/1958 5.09 08/29/1964 4.90 09/12/1965 2.85 06/24/1966 3.72 06/10/1967 4.24 10/09/1968 3.84 01/20/1969 2.63 10/02/1970 3.23 10/21/1971 4.22 08/15/1972 8.09 08/06/1973 6.86 07/12/1974 4.34 06/11/1975 3.46 06/08/1976 3.46 09/19/1977 4.23 08/14/1978 7.02 05/05/1979 4.22 08/30/1980 4.97 04/21/1981 3.13 10/01/1982 4.37 11/19/1983 4.58 10/12/1984 4.38 06/25/1985 3.25 06/03/1986 4.14 07/11/1987 4.50 08/04/1988 4.86 08/26/1989 3.84 09/04/1990 5.43 09/06/1991 7.59 06/23/1992 4.51 06/30/1993 4.86 09/13/1994 3.34 08/18/1995 4.94 06/24/1997 4.87 06/30/1999 5.93 04/21/2001 4.47 06/16/2002 5.22 08/07/2004 2.43 10/03/2005 4.34 05/29/2006 2.90 10/16/2007 3.81 06/04/2008 4.07 08/19/2009 4.09 Duration: 20 days 08/28/1941 9.66 04/25/1942 5.10 05/26/1943 5.17 05/30/1944 5.69 07/26/1945 5.19 09/19/1946 4.41 08/02/1947 3.75 06/17/1949 7.83 04/24/1950 5.91 08/25/1951 8.37 06/13/1952 7.14 07/24/1953 7.08 05/30/1954 5.09 07/21/1955 6.04 07/24/1956 3.93 06/10/1957 6.82 06/22/1958 5.91 08/20/1964 9.19 09/11/1965 5.13 07/25/1966 5.82 06/04/1967 4.94 05/23/1968 5.50 08/28/1969 3.82 10/23/1970 4.72 10/15/1971 5.38 08/05/1972 10.17 07/27/1973 8.04 07/16/1974 6.00 06/11/1975 5.02 06/12/1976 5.82 09/22/1977 6.63 08/14/1978 7.17 06/15/1979 5.34 08/16/1980 6.65 06/09/1981 5.02 09/23/1982 5.81 09/10/1983 5.09 06/04/1984 5.12 08/15/1985 4.87 06/07/1986 7.43 07/01/1987 5.33 08/04/1988 6.41 08/12/1989 4.80 08/18/1990 8.52 09/02/1991 8.60 06/15/1992 7.05 06/20/1993 7.67 09/04/1994 5.27 08/09/1995 6.25 06/15/1997 6.40 06/21/1999 8.98 04/05/2001 7.61 06/19/2002 8.27 09/05/2004 4.21 09/19/2005 5.79 05/29/2006 4.46 09/30/2007 7.01 05/25/2008 5.18 08/01/2009 5.00 Duration: 30 days 08/20/1941 10.90 05/13/1942 5.82 05/29/1943 6.68 05/29/1944 7.60 07/26/1945 6.49 09/06/1946 5.86 08/02/1947 4.62 06/30/1949 9.31 04/09/1950 7.83 08/28/1951 9.86 06/23/1952 10.50 07/17/1953 8.11 05/23/1954 6.57 07/22/1955 7.24 08/03/1956 4.74 06/21/1957 10.14 06/30/1958 6.96 08/09/1964 10.44 08/24/1965 6.03 07/17/1966 7.89 06/04/1967 5.33 05/23/1968 6.63 08/28/1969 4.91 10/06/1970 6.31 10/01/1971 6.09 07/22/1972 11.05 08/05/1973 10.88 07/12/1974 6.99 06/10/1975 6.86 06/07/1976 6.30 08/26/1977 7.41 06/23/1978 8.37 06/06/1979 6.94 08/10/1980 9.44 06/01/1981 5.83 09/10/1982 8.23 11/19/1983 6.40 09/22/1984 6.96 08/12/1985 6.72 06/03/1986 8.12 07/17/1987 5.47 08/04/1988 7.57 08/26/1989 6.91 08/18/1990 10.59 08/24/1991 9.65 06/05/1992 7.66 06/08/1993 10.04 08/25/1994 7.19 07/31/1995 7.59 06/15/1997 7.85 06/19/1999 10.07 04/02/2001 8.23 06/12/2002 8.65 08/07/2004 5.25 09/06/2005 7.81 05/08/2006 5.54 09/20/2007 8.74 05/29/2008 5.72 07/21/2009 6.63 Duration: 45 days 04/30/1942 8.43 05/15/1943 8.21 04/30/1944 11.12 08/10/1945 9.05 09/19/1946 7.56 05/01/1947 5.64 06/17/1949 11.57 03/26/1950 11.01 07/30/1951 11.78 06/12/1952 12.80 06/29/1953 11.98 05/27/1954 7.92 06/23/1955 8.93 08/03/1956 6.37 06/10/1957 12.38 05/31/1958 8.72 08/19/1964 12.04 09/06/1965 8.64 06/24/1966 11.75 06/11/1967 7.40 06/05/1968 8.75 12/19/1968 6.48 10/06/1970 8.34 07/12/1971 8.00 07/11/1972 16.50 07/23/1973 12.45 07/12/1974 8.19 05/27/1975 7.64 06/08/1976 8.50 08/25/1977 10.08 07/12/1978 11.65 05/20/1979 9.25 08/01/1980 11.07 06/09/1981 7.90 08/29/1982 9.16 09/03/1983 7.84 09/12/1984 7.69 08/10/1985 8.68 06/07/1986 11.29 07/01/1987 6.76 08/07/1988 10.20 08/08/1989 9.22 08/18/1990 11.49 07/27/1991 11.94 06/05/1992 8.40 05/24/1993 13.08 08/25/1994 8.31 08/18/1995 9.16 06/15/1997 9.11 07/05/1999 14.60 04/07/2001 10.00 06/18/2002 11.12 08/08/2004 6.90 08/26/2005 8.41 05/08/2006 7.13 09/06/2007 11.13 06/05/2008 8.13 07/14/2009 8.41 Duration: 60 days 04/25/1942 9.36 06/11/1943 9.55 04/30/1944 13.35 07/26/1945 12.19 09/05/1946 9.60 04/16/1947 6.53 06/02/1949 13.80 03/26/1950 12.50 07/30/1951 13.85 06/12/1952 14.44 06/15/1953 14.66 04/25/1954 11.45 07/26/1955 11.78 08/03/1956 7.13 05/21/1957 13.64 05/29/1958 10.24 08/06/1964 13.43 08/21/1965 11.37 06/24/1966 14.58 06/04/1967 8.54 04/13/1968 11.30 12/01/1968 8.36 10/07/1970 10.81 07/12/1971 9.39 06/27/1972 17.49 08/13/1973 13.47 06/04/1974 10.38 05/14/1975 8.62 06/07/1976 9.84 08/12/1977 11.09 06/25/1978 15.54 05/05/1979 13.45 07/14/1980 13.88 06/10/1981 9.99 08/13/1982 10.28 08/02/1983 8.94 04/26/1984 9.11 08/10/1985 10.53 04/24/1986 12.80 07/01/1987 7.31 07/29/1988 13.16 07/27/1989 10.19 08/18/1990 13.49 07/18/1991 14.76 05/10/1992 10.72 05/18/1993 15.19 08/25/1994 9.76 07/02/1995 12.40 05/29/1997 9.55 06/21/1999 18.39 03/30/2001 11.89 06/19/2002 14.48 07/28/2004 8.93 05/05/2005 10.01 04/29/2006 9.10 08/27/2007 12.32 05/29/2008 9.89 07/14/2009 10.42