Precipitation annual maximum series (inches) Station ID: 09-0219 Station name: ALPHARETTA 4 SSW State: GA Latitude (decimal degrees): 34.0661 Longitude (decimal degrees): -84.3233 Elevation (feet): 1138 Duration: 1 hour 09/06/1949 1.25 10/19/1950 0.92 09/22/1951 1.35 04/30/1953 1.23 08/18/1954 1.21 08/08/1955 2.02 07/04/1956 1.85 08/12/1957 1.08 07/21/1958 1.14 10/09/1959 0.93 08/12/1960 1.65 12/11/1961 1.24 10/03/1962 1.45 03/12/1963 1.45 07/20/1964 1.95 05/21/1965 1.38 08/08/1966 1.61 08/04/1967 1.25 05/12/1968 1.13 12/30/1969 1.58 08/25/1972 0.95 03/16/1973 1.63 07/26/1974 1.92 06/10/1975 0.85 06/03/1976 1.15 03/29/1977 1.65 05/31/1979 0.76 03/21/1980 1.05 05/26/1981 1.74 08/09/1982 1.73 09/12/1983 1.29 Duration: 2 hours 09/06/1949 1.31 10/19/1950 1.37 07/02/1951 1.48 04/30/1953 1.52 08/18/1954 1.56 08/08/1955 2.12 07/04/1956 1.94 08/12/1957 1.13 07/21/1958 1.89 10/09/1959 1.68 08/12/1960 1.99 12/17/1961 1.85 10/03/1962 2.30 03/12/1963 2.00 07/20/1964 2.04 10/01/1965 1.50 08/08/1966 3.07 08/04/1967 1.41 05/12/1968 1.88 12/30/1969 1.69 08/25/1972 1.44 03/16/1973 2.10 07/26/1974 2.07 08/10/1975 1.46 05/28/1976 1.46 03/29/1977 2.28 05/31/1979 1.29 03/20/1980 1.45 05/26/1981 2.10 08/09/1982 2.35 09/12/1983 1.65 Duration: 3 hours 09/06/1949 1.34 10/19/1950 1.58 07/02/1951 1.51 04/30/1953 1.72 08/18/1954 1.91 08/08/1955 2.16 07/04/1956 1.98 04/04/1957 1.19 07/21/1958 1.93 10/08/1959 1.96 08/12/1960 2.03 12/17/1961 2.38 10/03/1962 2.85 03/12/1963 2.18 07/20/1964 2.08 09/30/1965 1.54 08/08/1966 3.25 08/04/1967 1.44 05/12/1968 1.92 12/30/1969 1.73 08/25/1972 1.47 03/16/1973 2.41 07/26/1974 2.11 03/13/1975 1.70 05/28/1976 1.56 03/29/1977 2.86 05/31/1979 1.55 03/20/1980 1.71 05/26/1981 2.24 08/09/1982 2.40 12/06/1983 1.74 Duration: 6 hours 01/05/1949 1.48 10/19/1950 2.19 03/07/1951 1.73 04/30/1953 2.04 08/18/1954 2.61 08/08/1955 2.18 07/04/1956 2.00 04/04/1957 1.91 07/21/1958 1.95 10/08/1959 2.26 08/12/1960 2.24 02/20/1961 3.01 10/03/1962 3.05 03/12/1963 2.35 07/20/1964 2.10 09/30/1965 2.27 08/08/1966 3.28 08/04/1967 1.56 11/17/1968 2.10 08/22/1969 2.44 01/10/1972 2.00 03/16/1973 2.75 07/26/1974 2.13 03/13/1975 1.95 01/26/1976 2.13 03/29/1977 3.28 05/31/1979 1.91 03/20/1980 1.90 05/26/1981 2.79 08/09/1982 2.67 12/06/1983 2.61 Duration: 12 hours 09/05/1949 2.15 10/19/1950 2.64 03/07/1951 1.99 04/30/1953 2.30 01/15/1954 3.14 02/06/1955 3.43 09/25/1956 2.52 04/04/1957 2.80 10/01/1958 2.60 05/30/1959 2.65 08/12/1960 2.28 02/20/1961 4.86 10/03/1962 3.09 09/28/1963 3.09 01/24/1964 3.06 09/30/1965 3.05 08/08/1966 3.31 08/23/1967 1.76 11/17/1968 3.08 08/22/1969 2.75 01/10/1972 2.29 09/13/1973 3.08 07/26/1974 2.15 03/13/1975 2.05 01/26/1976 2.99 03/29/1977 4.13 04/12/1979 2.51 06/23/1980 2.37 05/26/1981 3.48 02/02/1982 4.10 12/05/1983 3.30 Duration: 1 day 03/29/1902 3.40 06/04/1903 3.46 09/06/1949 3.46 10/19/1950 3.08 03/07/1951 2.23 04/30/1953 2.05 08/18/1954 2.88 02/06/1955 3.32 09/25/1956 2.77 04/04/1957 3.86 10/01/1958 2.58 05/30/1959 3.04 03/30/1960 2.90 12/12/1961 5.12 10/04/1962 3.72 09/29/1963 3.21 01/25/1964 4.65 10/01/1965 3.85 02/13/1966 3.82 08/24/1967 2.62 11/18/1968 3.22 05/09/1969 2.83 03/20/1970 3.89 09/18/1971 2.22 01/11/1972 4.71 03/17/1973 3.08 01/01/1974 1.92 03/13/1975 3.07 06/04/1976 3.21 03/30/1977 4.53 07/15/1978 2.37 04/13/1979 3.17 06/24/1980 3.12 03/30/1981 3.15 02/03/1982 5.06 11/24/1983 2.95 05/29/1984 2.10 08/17/1985 2.54 03/14/1986 2.38 07/03/1987 2.37 07/23/1988 2.94 10/02/1989 3.01 03/15/1990 5.21 09/02/1991 3.10 08/22/1992 3.15 06/26/1994 2.12 08/27/2007 1.85 08/25/2008 2.64 11/11/2009 4.38 06/16/2010 3.88 Duration: 2 days 03/28/1902 3.90 06/04/1903 4.77 09/05/1949 4.78 10/19/1950 3.37 07/01/1951 2.55 09/25/1953 3.27 01/15/1954 3.44 02/06/1955 3.58 09/24/1956 3.57 04/04/1957 4.16 09/30/1958 3.17 05/30/1959 4.20 03/29/1960 3.12 12/12/1961 6.64 02/22/1962 4.18 04/29/1963 5.81 01/25/1964 5.01 09/30/1965 4.15 03/03/1966 4.11 08/23/1967 3.92 11/17/1968 3.66 01/19/1969 3.15 03/20/1970 4.33 03/02/1971 3.24 01/10/1972 5.65 03/31/1973 3.32 12/31/1973 2.66 03/13/1975 3.89 03/16/1976 4.46 03/29/1977 5.89 01/25/1978 3.56 04/13/1979 5.27 09/29/1980 4.86 03/30/1981 3.39 02/03/1982 5.45 09/03/1983 3.18 07/30/1984 3.60 08/25/1985 3.08 10/25/1986 3.61 07/02/1987 3.89 07/22/1988 3.45 10/01/1989 4.78 03/15/1990 7.24 11/21/1991 3.70 08/22/1992 3.97 08/01/1994 2.30 08/27/2007 1.99 08/25/2008 5.28 09/21/2009 6.09 06/16/2010 4.18 Duration: 3 days 02/27/1902 4.35 05/30/1903 5.01 09/05/1949 4.97 10/19/1950 3.50 06/30/1951 3.37 09/24/1953 3.43 01/14/1954 3.58 02/06/1955 3.72 09/24/1956 3.71 04/04/1957 4.32 07/13/1958 3.32 05/30/1959 4.90 03/29/1960 3.15 12/11/1961 7.39 02/22/1962 5.27 04/28/1963 6.18 01/25/1964 5.06 09/30/1965 4.19 02/11/1966 4.27 08/23/1967 4.81 11/17/1968 3.70 07/21/1969 3.87 07/21/1970 5.51 03/02/1971 3.46 01/10/1972 5.88 03/30/1973 3.35 12/30/1973 3.11 03/12/1975 3.93 03/15/1976 5.15 03/29/1977 5.95 08/08/1978 3.71 04/13/1979 5.32 09/29/1980 7.18 03/30/1981 3.43 02/01/1982 5.50 09/02/1983 3.88 07/29/1984 4.07 08/25/1985 3.33 10/25/1986 3.65 07/01/1987 4.01 07/22/1988 3.48 09/30/1989 5.98 03/15/1990 7.31 11/20/1991 3.90 08/22/1992 4.01 06/24/1994 2.57 08/25/2008 6.75 09/20/2009 7.51 06/15/2010 4.22 Duration: 4 days 02/27/1902 4.39 05/30/1903 5.23 09/05/1949 5.02 10/19/1950 3.54 06/29/1951 3.73 09/24/1953 3.46 01/14/1954 3.62 02/06/1955 3.76 09/24/1956 3.75 04/04/1957 4.36 07/21/1958 3.47 05/30/1959 4.95 01/27/1960 3.43 12/10/1961 8.80 02/21/1962 5.41 04/28/1963 6.24 01/25/1964 5.11 09/30/1965 4.23 02/13/1966 5.40 07/07/1967 5.68 11/17/1968 3.74 04/15/1969 4.70 07/21/1970 5.63 03/01/1971 3.52 01/10/1972 6.27 03/29/1973 3.39 04/02/1974 3.22 03/11/1975 3.97 03/15/1976 5.20 03/29/1977 6.01 08/07/1978 4.70 04/13/1979 5.37 09/28/1980 7.25 03/30/1981 3.46 02/01/1982 5.73 12/03/1983 5.16 07/30/1984 4.96 08/25/1985 3.36 05/26/1986 4.17 07/02/1987 4.08 07/22/1988 3.52 09/29/1989 6.88 03/15/1990 7.38 08/30/1991 4.60 08/22/1992 4.05 03/25/1994 3.26 08/25/2008 6.83 09/20/2009 7.58 06/15/2010 4.26 Duration: 7 days 02/27/1902 4.86 05/30/1903 10.00 07/10/1948 9.18 09/05/1949 5.07 10/19/1950 3.90 12/15/1951 4.25 04/30/1953 4.78 01/15/1954 4.62 02/06/1955 4.05 02/01/1956 3.84 04/01/1957 5.25 07/08/1958 5.24 05/26/1959 5.22 03/30/1960 5.20 02/19/1961 11.83 02/19/1962 6.00 06/17/1963 6.31 09/29/1964 5.83 10/01/1965 4.31 02/11/1966 6.87 08/19/1967 6.82 11/12/1968 3.84 04/14/1969 5.04 07/21/1970 5.69 02/26/1971 4.72 01/05/1972 7.37 12/26/1973 4.39 03/30/1974 3.69 03/13/1975 5.34 03/15/1976 5.85 03/29/1977 7.13 08/04/1978 5.67 04/09/1979 5.97 05/18/1980 7.35 03/30/1981 3.50 02/01/1982 5.79 12/03/1983 5.91 07/28/1984 5.91 01/31/1985 4.28 05/26/1986 4.21 07/01/1987 4.90 07/22/1988 3.85 09/26/1989 9.87 03/15/1990 7.46 08/28/1991 5.00 08/22/1992 5.19 03/24/1994 4.38 12/26/2007 2.43 08/24/2008 6.90 09/16/2009 13.20 06/15/2010 4.30 Duration: 10 days 02/20/1902 5.38 05/30/1903 10.10 07/09/1948 9.27 08/28/1949 5.39 10/19/1950 3.94 12/17/1951 5.61 04/30/1953 4.85 01/14/1954 5.52 02/06/1955 4.09 06/30/1956 4.28 04/01/1957 5.30 07/06/1958 6.14 10/06/1959 6.18 03/29/1960 5.25 12/09/1961 13.41 02/16/1962 6.51 06/17/1963 6.75 09/29/1964 5.89 06/07/1965 5.09 02/10/1966 6.94 08/19/1967 7.58 11/09/1968 4.55 04/10/1969 5.29 07/16/1970 5.81 02/22/1971 6.53 01/05/1972 8.79 05/20/1973 6.46 12/26/1973 4.92 03/10/1975 5.75 05/27/1976 7.40 03/29/1977 8.07 08/04/1978 5.89 04/05/1979 6.16 05/15/1980 7.83 12/23/1981 3.77 02/01/1982 6.52 12/03/1983 7.63 07/23/1984 6.48 08/17/1985 5.81 05/20/1986 4.68 01/17/1987 5.67 07/22/1988 4.18 09/25/1989 10.34 03/09/1990 8.56 04/27/1991 5.86 08/22/1992 5.24 03/22/1994 4.68 02/21/2007 3.24 08/24/2008 6.97 09/16/2009 13.33 06/15/2010 4.35 Duration: 20 days 02/25/1902 7.56 05/30/1903 10.10 08/18/1949 7.16 08/21/1950 5.26 12/04/1951 6.92 04/30/1953 5.69 01/03/1954 5.81 02/06/1955 5.51 01/18/1956 5.82 03/18/1957 6.97 07/06/1958 9.84 10/06/1959 7.22 01/27/1960 6.53 02/18/1961 14.66 02/21/1962 8.03 06/17/1963 8.16 03/20/1964 9.32 01/24/1965 5.54 02/13/1966 11.74 07/07/1967 9.84 11/04/1968 6.24 01/19/1969 5.94 03/18/1970 7.19 02/20/1971 8.50 12/31/1971 9.82 05/20/1973 8.20 12/21/1973 6.59 03/11/1975 7.62 03/15/1976 9.58 03/20/1977 10.33 01/07/1978 8.04 04/03/1979 9.28 03/05/1980 9.96 12/15/1981 6.20 11/28/1982 7.80 11/24/1983 11.61 07/14/1984 9.02 08/08/1985 6.74 10/09/1986 7.15 06/14/1987 9.68 07/22/1988 7.58 09/15/1989 13.49 03/02/1990 10.88 04/27/1991 7.49 08/22/1992 7.01 06/07/1994 6.83 12/14/2007 4.40 08/08/2008 7.60 09/16/2009 15.67 06/15/2010 6.71 Duration: 30 days 02/28/1902 9.72 05/30/1903 12.26 07/09/1948 14.38 08/18/1949 7.83 08/10/1950 7.07 11/27/1951 8.62 02/06/1953 6.52 12/28/1953 7.09 01/15/1955 6.88 02/02/1956 7.39 11/14/1957 7.92 06/22/1958 11.05 05/10/1959 7.81 01/27/1960 8.04 02/18/1961 15.69 02/16/1962 9.14 02/19/1963 9.25 03/15/1964 12.42 05/19/1965 8.63 02/10/1966 12.24 06/29/1967 11.43 03/10/1968 7.86 04/10/1969 8.31 10/15/1970 7.65 02/04/1971 10.99 12/16/1971 11.64 03/10/1973 11.23 12/16/1974 8.76 02/17/1975 8.58 05/07/1976 12.23 03/07/1977 12.01 07/15/1978 9.78 04/03/1979 11.02 03/02/1980 13.83 12/14/1981 8.12 06/28/1982 9.69 11/15/1983 14.75 07/17/1984 10.10 07/28/1985 8.79 09/27/1986 7.99 06/12/1987 10.71 07/23/1988 8.31 09/06/1989 13.81 02/16/1990 15.21 04/08/1991 9.76 08/10/1992 8.48 06/07/1994 8.75 12/10/2008 9.17 09/16/2009 21.62 01/17/2010 7.45 Duration: 45 days 02/14/1902 13.15 02/07/1903 17.21 12/29/1948 8.96 07/26/1950 8.82 03/07/1951 9.69 12/03/1953 10.56 02/16/1954 7.30 12/29/1954 9.18 02/01/1956 11.54 11/07/1957 10.56 06/15/1958 12.58 08/31/1959 10.14 01/01/1960 10.51 02/19/1961 18.45 02/16/1962 12.38 06/17/1963 11.25 03/02/1964 16.00 01/23/1965 9.41 01/22/1966 13.98 04/22/1967 14.72 02/29/1968 9.69 04/06/1969 11.67 03/20/1970 9.28 01/22/1971 13.78 12/03/1971 14.86 12/20/1972 12.59 12/26/1973 11.53 02/04/1975 12.12 05/07/1976 13.01 02/24/1977 14.99 12/14/1977 11.22 03/01/1979 12.64 03/01/1980 16.85 11/24/1981 10.78 06/28/1982 14.29 11/15/1983 18.27 07/17/1984 12.62 07/23/1985 10.26 10/25/1986 9.81 05/30/1987 11.84 07/23/1988 12.12 08/25/1989 15.45 02/04/1990 17.88 04/08/1991 12.48 08/22/1992 11.98 02/22/1994 10.57 11/29/2008 11.59 09/16/2009 24.31 06/15/2010 11.04 Duration: 60 days 01/30/1902 16.26 02/02/1903 21.02 07/10/1949 11.82 07/11/1950 12.33 10/28/1951 11.93 11/24/1953 12.78 02/16/1954 9.01 12/09/1954 10.70 01/18/1956 13.52 11/03/1957 11.42 06/15/1958 13.29 08/16/1959 11.89 01/01/1960 12.09 02/18/1961 21.70 02/16/1962 15.64 03/02/1963 15.77 03/05/1964 19.76 01/24/1965 12.42 01/04/1966 18.52 06/30/1967 19.61 11/04/1968 12.15 03/19/1969 13.36 03/18/1970 11.44 01/26/1971 16.04 11/24/1971 17.00 12/05/1972 16.05 12/26/1973 14.69 02/04/1975 14.45 05/07/1976 16.32 02/24/1977 16.25 11/28/1977 12.57 04/03/1979 17.26 02/16/1980 17.86 11/20/1981 12.36 07/06/1982 16.46 11/15/1983 20.13 06/29/1984 14.60 06/29/1985 12.26 10/09/1986 13.35 05/12/1987 15.09 07/22/1988 14.20 06/04/1989 16.78 01/23/1990 21.32 04/08/1991 14.23 11/23/1992 14.37 06/07/1994 14.51 11/13/2008 12.47 09/16/2009 30.08 12/09/2009 13.23