Precipitation annual maximum series (inches) Station ID: 66-8306 Station name: RIO PIEDRAS EXP STA State: PR Latitude (decimal degrees): 18.4167 Longitude (decimal degrees): 66.0667 Elevation (feet): 92 Duration: 01d 2.62 1911 3.01 1912 4.02 1913 3.20 1914 5.26 1915 2.20 1916 2.55 1917 3.10 1918 2.03 1919 2.00 1920 1.50 1921 2.19 1922 2.05 1923 4.42 1924 3.83 1925 5.14 1926 4.22 1927 5.13 1928 4.84 1929 5.00 1930 3.75 1931 6.15 1932 3.83 1933 4.25 1934 2.40 1935 3.10 1936 3.74 1937 3.94 1938 4.12 1939 5.20 1940 4.72 1941 2.02 1942 7.23 1943 5.00 1944 4.37 1945 3.05 1946 5.54 1947 4.67 1948 3.16 1949 5.48 1950 4.29 1951 2.72 1952 2.21 1953 2.76 1954 2.87 1955 5.80 1956 2.29 1957 4.93 1958 2.81 1959 2.53 1960 5.74 1961 -9.99 1962 3.07 1963 3.22 1964 4.23 1965 4.12 1966 1.54 1967 4.46 1968 3.66 1969 7.36 1970 2.00 1971 3.33 1972 8.30 1973 4.38 1974 3.20 1975 2.92 1976 4.70 1977 5.61 1978 6.61 1979 2.44 1980 3.31 1981 2.71 1982 3.95 1983 2.57 1984 3.15 1985 2.28 1986 3.66 1987 2.40 1988 2.76 1989 2.05 1990 2.08 1991 2.00 1992 2.10 1993 2.10 1994 2.25 1995 2.00 1996 2.15 1997 2.06 1998 2.00 1999 4.20 2000 3.28 2001 4.36 2002 2.71 2003 4.36 2004 Duration: 02d -9.99 1911 -9.99 1912 -9.99 1913 -9.99 1914 -9.99 1915 -9.99 1916 -9.99 1917 -9.99 1918 -9.99 1919 -9.99 1920 -9.99 1921 -9.99 1922 -9.99 1923 -9.99 1924 -9.99 1925 -9.99 1926 -9.99 1927 -9.99 1928 -9.99 1929 -9.99 1930 4.95 1931 6.30 1932 4.34 1933 4.95 1934 3.35 1935 3.56 1936 5.61 1937 -9.99 1938 5.21 1939 5.97 1940 5.91 1941 2.92 1942 8.86 1943 8.00 1944 6.37 1945 3.69 1946 6.90 1947 5.07 1948 3.27 1949 6.28 1950 4.21 1951 3.05 1952 2.85 1953 3.95 1954 3.05 1955 6.72 1956 2.84 1957 6.22 1958 3.71 1959 3.30 1960 6.52 1961 -9.99 1962 3.32 1963 4.23 1964 5.45 1965 5.92 1966 1.85 1967 5.39 1968 3.80 1969 9.66 1970 3.25 1971 3.43 1972 11.76 1973 5.36 1974 5.66 1975 3.62 1976 5.97 1977 5.78 1978 9.04 1979 2.55 1980 5.35 1981 3.31 1982 4.05 1983 2.85 1984 4.60 1985 4.31 1986 5.76 1987 4.48 1988 3.66 1989 2.63 1990 3.90 1991 2.73 1992 3.15 1993 2.34 1994 3.12 1995 2.13 1996 2.52 1997 3.67 1998 2.55 1999 4.25 2000 5.42 2001 4.36 2002 4.78 2003 6.02 2004 Duration: 04d 5.48 1931 7.68 1932 4.80 1933 5.67 1934 4.10 1935 5.24 1936 8.65 1937 -9.99 1938 5.75 1939 6.27 1940 6.93 1941 4.06 1942 9.33 1943 10.06 1944 7.24 1945 4.07 1946 8.36 1947 5.10 1948 4.68 1949 8.20 1950 6.87 1951 4.12 1952 3.85 1953 4.98 1954 4.13 1955 8.52 1956 3.02 1957 10.72 1958 4.19 1959 3.51 1960 8.66 1961 -9.99 1962 3.81 1963 5.38 1964 6.52 1965 6.07 1966 2.46 1967 8.56 1968 5.15 1969 13.74 1970 3.83 1971 4.14 1972 13.24 1973 9.22 1974 6.98 1975 4.65 1976 9.44 1977 6.18 1978 10.19 1979 2.77 1980 7.69 1981 5.58 1982 6.34 1983 4.28 1984 6.62 1985 5.51 1986 7.88 1987 6.59 1988 6.12 1989 3.88 1990 4.76 1991 4.02 1992 3.73 1993 3.46 1994 3.92 1995 4.11 1996 3.64 1997 4.98 1998 3.38 1999 4.86 2000 8.30 2001 5.81 2002 4.92 2003 7.52 2004 Duration: 07d 6.42 1931 9.34 1932 6.42 1933 6.35 1934 4.95 1935 6.16 1936 13.37 1937 -9.99 1938 6.89 1939 7.69 1940 8.17 1941 4.95 1942 9.53 1943 11.19 1944 8.40 1945 4.86 1946 9.31 1947 7.00 1948 6.42 1949 9.71 1950 8.23 1951 6.80 1952 6.25 1953 6.37 1954 5.08 1955 11.49 1956 4.38 1957 11.38 1958 5.54 1959 5.26 1960 9.65 1961 -9.99 1962 4.70 1963 5.51 1964 7.86 1965 7.69 1966 3.31 1967 9.36 1968 5.86 1969 15.29 1970 5.99 1971 4.28 1972 15.16 1973 12.66 1974 7.55 1975 5.95 1976 10.14 1977 6.90 1978 13.06 1979 3.69 1980 8.19 1981 6.46 1982 7.34 1983 5.01 1984 7.28 1985 6.46 1986 8.90 1987 6.78 1988 7.05 1989 4.59 1990 5.05 1991 5.44 1992 4.40 1993 3.61 1994 5.33 1995 4.16 1996 4.30 1997 5.99 1998 5.13 1999 5.16 2000 8.85 2001 6.42 2002 6.44 2003 9.10 2004 Duration: 10d 8.69 1931 9.65 1932 7.39 1933 7.33 1934 5.61 1935 7.61 1936 14.52 1937 -9.99 1938 7.57 1939 8.63 1940 8.94 1941 6.18 1942 10.79 1943 12.32 1944 9.13 1945 5.41 1946 9.80 1947 7.13 1948 7.17 1949 10.03 1950 8.56 1951 7.76 1952 6.56 1953 8.23 1954 6.77 1955 11.67 1956 5.18 1957 13.24 1958 6.51 1959 6.07 1960 9.89 1961 -9.99 1962 6.38 1963 7.70 1964 9.80 1965 7.91 1966 4.01 1967 9.46 1968 6.80 1969 15.63 1970 7.22 1971 4.85 1972 15.16 1973 13.85 1974 8.55 1975 6.86 1976 11.11 1977 7.30 1978 14.42 1979 3.93 1980 9.03 1981 8.35 1982 7.61 1983 5.05 1984 8.02 1985 6.89 1986 12.12 1987 7.06 1988 9.11 1989 5.68 1990 5.11 1991 7.04 1992 6.26 1993 5.13 1994 6.11 1995 5.22 1996 5.09 1997 7.42 1998 5.69 1999 7.14 2000 8.93 2001 9.16 2002 7.53 2003 10.77 2004 Duration: 20d 13.70 1931 15.44 1932 12.71 1933 9.87 1934 7.38 1935 13.99 1936 20.30 1937 -9.99 1938 11.96 1939 14.38 1940 13.05 1941 10.02 1942 13.36 1943 15.89 1944 13.39 1945 9.39 1946 12.50 1947 10.58 1948 13.86 1949 13.82 1950 10.22 1951 11.10 1952 8.48 1953 12.55 1954 11.24 1955 13.73 1956 7.90 1957 18.16 1958 8.54 1959 9.36 1960 12.87 1961 -9.99 1962 8.29 1963 10.20 1964 15.00 1965 10.83 1966 7.42 1967 14.16 1968 9.58 1969 20.41 1970 11.53 1971 7.17 1972 15.60 1973 16.81 1974 11.58 1975 10.71 1976 13.04 1977 9.73 1978 18.81 1979 6.51 1980 11.67 1981 10.35 1982 10.92 1983 8.25 1984 10.26 1985 9.71 1986 15.45 1987 10.41 1988 10.14 1989 9.87 1990 7.53 1991 11.10 1992 8.63 1993 7.96 1994 9.03 1995 7.84 1996 8.10 1997 8.55 1998 8.42 1999 9.45 2000 11.77 2001 13.60 2002 10.45 2003 16.77 2004 Duration: 30d 15.57 1931 18.56 1932 14.38 1933 12.85 1934 11.01 1935 16.35 1936 23.28 1937 -9.99 1938 13.51 1939 18.18 1940 18.40 1941 13.19 1942 15.75 1943 18.93 1944 20.27 1945 10.36 1946 14.35 1947 12.06 1948 16.50 1949 17.33 1950 11.30 1951 14.11 1952 11.65 1953 16.67 1954 14.29 1955 17.06 1956 10.07 1957 23.74 1958 11.29 1959 11.67 1960 21.79 1961 -9.99 1962 11.07 1963 13.97 1964 18.79 1965 13.20 1966 9.73 1967 17.95 1968 12.72 1969 21.99 1970 13.75 1971 10.27 1972 16.66 1973 20.44 1974 17.04 1975 13.94 1976 17.28 1977 12.84 1978 21.34 1979 9.12 1980 13.53 1981 13.31 1982 13.56 1983 12.24 1984 14.99 1985 13.53 1986 17.13 1987 13.70 1988 12.42 1989 12.37 1990 8.43 1991 15.62 1992 11.01 1993 10.98 1994 11.81 1995 10.76 1996 10.71 1997 10.44 1998 9.64 1999 11.53 2000 13.95 2001 15.72 2002 13.40 2003 19.21 2004 Duration: 45d 20.52 1931 22.89 1932 20.61 1933 15.00 1934 13.18 1935 18.27 1936 24.70 1937 -9.99 1938 17.65 1939 20.80 1940 22.85 1941 17.20 1942 19.46 1943 28.80 1944 23.43 1945 14.47 1946 19.09 1947 17.31 1948 21.09 1949 20.65 1950 15.56 1951 19.03 1952 14.63 1953 20.94 1954 19.09 1955 23.04 1956 12.55 1957 28.45 1958 14.25 1959 15.45 1960 26.10 1961 -9.99 1962 14.21 1963 17.29 1964 21.04 1965 16.52 1966 12.44 1967 20.99 1968 16.59 1969 28.39 1970 14.99 1971 12.06 1972 16.88 1973 24.50 1974 19.71 1975 18.54 1976 19.14 1977 17.87 1978 28.21 1979 11.15 1980 17.79 1981 15.48 1982 16.46 1983 14.17 1984 22.69 1985 18.04 1986 22.00 1987 15.13 1988 17.90 1989 16.10 1990 12.15 1991 20.14 1992 14.01 1993 12.59 1994 14.04 1995 13.90 1996 14.39 1997 13.13 1998 12.85 1999 15.03 2000 20.08 2001 20.28 2002 16.23 2003 21.65 2004 Duration: 60d 23.64 1931 25.91 1932 24.47 1933 18.93 1934 14.97 1935 21.84 1936 26.11 1937 -9.99 1938 21.81 1939 23.16 1940 29.00 1941 22.24 1942 26.29 1943 30.59 1944 25.37 1945 17.60 1946 23.50 1947 20.73 1948 25.95 1949 26.89 1950 18.21 1951 22.20 1952 18.66 1953 25.91 1954 23.36 1955 30.18 1956 15.27 1957 34.42 1958 17.14 1959 19.24 1960 29.15 1961 -9.99 1962 16.25 1963 19.03 1964 26.17 1965 18.58 1966 14.20 1967 23.32 1968 19.35 1969 31.90 1970 16.47 1971 14.03 1972 20.71 1973 30.17 1974 22.09 1975 22.53 1976 22.19 1977 21.69 1978 33.82 1979 13.84 1980 21.29 1981 19.92 1982 20.24 1983 18.71 1984 25.97 1985 22.21 1986 26.78 1987 17.23 1988 21.91 1989 19.21 1990 15.07 1991 21.05 1992 16.53 1993 15.14 1994 17.99 1995 17.13 1996 16.36 1997 17.86 1998 16.03 1999 19.83 2000 24.02 2001 22.13 2002 18.89 2003 26.03 2004