YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1911 | 0.65 | 0.32 | 0.36 | 0.10 | 0.00 | 2.00 | ----- | z | 0.45 | 1.72 | ----- | z | 0.00 | 0.21 | ----- | z | ||||||||||
1912 | 0.00 | 0.00 | 0.82 | 0.35 | 0.13 | 0.80 | 1.45 | 2.45 | 0.10 | 1.00 | 0.05 | 0.60 | 2.45 | |||||||||||||
1913 | 0.20 | 0.79 | 0.10 | 0.41 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||||
1914 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1915 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1916 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1917 | ----- | z | ----- | z | ----- | z | ----- | z | 1.03 | 0.00 | 1.30 | r | 0.19 | 1.10 | 0.00 | 0.00 | 0.00 | ----- | z | |||||||
1918 | 0.55 | 0.41 | 0.15 | 0.00 | 0.06 | 0.47 | 0.91 | 1.17 | 0.00 | 0.34 | 0.66 | 0.81 | 1.17 | |||||||||||||
1919 | 0.37 | 0.18 | 0.21 | 0.95 | 0.46 | 1.20 | 2.00 | 0.48 | 1.82 | 0.15 | 1.60 | 0.35 | 2.00 | |||||||||||||
1920 | 1.80 | 0.20 | 0.55 | 0.00 | ----- | z | 0.50 | 1.20 | 0.85 | 0.20 | 0.60 | 0.00 | 0.00 | ----- | z | |||||||||||
1921 | 0.00 | 0.10 | 0.09 | 0.35 | 0.00 | ----- | z | 1.55 | y | 1.02 | w | 0.80 | ----- | z | ----- | z | 0.15 | ----- | z | |||||||
1922 | ----- | z | 0.15 | 0.70 | ----- | z | 0.00 | ----- | z | 0.85 | 0.92 | y | 0.45 | ----- | z | ----- | z | ----- | z | ----- | z | |||||
1923 | ----- | z | 0.60 | 0.25 | ----- | z | ----- | z | ----- | z | 1.10 | 1.43 | ----- | z | ----- | z | 1.02 | 0.40 | ----- | z | ||||||
1924 | 0.20 | ----- | z | 1.05 | 0.18 | ----- | z | 0.03 | 1.60 | 0.43 | 0.57 | 0.00 | ----- | z | ----- | z | ----- | z | ||||||||
1925 | ----- | z | 0.00 | 0.12 | 0.48 | ----- | z | ----- | z | 1.42 | 1.35 | ----- | z | ----- | z | ----- | z | 0.20 | ----- | z | ||||||
1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.91 | 0.80 | ----- | z | ||
1941 | 0.12 | 1.23 | 0.51 | 0.99 | 0.53 | 0.00 | 0.43 | 0.45 | 1.21 | 0.11 | 0.43 | 1.23 | 1.23 | |||||||||||||
1942 | 0.85 | 0.80 | 0.46 | 0.90 | 0.00 | 0.00 | 2.13 | 0.65 | 0.22 | 0.36 | 0.00 | 0.00 | 2.13 | |||||||||||||
1943 | 0.55 | 0.06 | 0.51 | 0.00 | 0.00 | 1.40 | 0.83 | 0.93 | 0.70 | 0.09 | 0.00 | 0.33 | 1.40 | |||||||||||||
1944 | 0.47 | 0.70 | 0.40 | 0.29 | 1.04 | 0.00 | 0.18 | 1.86 | 0.90 | 0.56 | 0.66 | 0.45 | 1.86 | |||||||||||||
1945 | 0.85 | 0.00 | 0.34 | 0.04 | ----- | z | ----- | z | ----- | z | 1.23 | 0.03 | 0.83 | 0.00 | 0.18 | ----- | z | |||||||||
1946 | 0.58 | 0.16 | 0.50 | 0.18 | 0.00 | 0.00 | 1.00 | 1.41 | 1.80 | 0.26 | 0.32 | 0.50 | 1.80 | |||||||||||||
1947 | 0.00 | 0.00 | 0.19 | 0.02 | 0.31 | 0.07 | 0.92 | 0.92 | 0.60 | 1.48 | 0.53 | 0.10 | 1.48 | |||||||||||||
1948 | 0.00 | 0.16 | 0.43 | 0.00 | 0.00 | 0.07 | 0.53 | a | 1.63 | b | 0.07 | a | 0.99 | 0.01 | 0.20 | a | 1.63 | e | ||||||||
1949 | 0.80 | c | 0.13 | c | 0.09 | b | 0.11 | 0.00 | 0.01 | 1.48 | 0.27 | 0.96 | 0.79 | 0.13 | 1.11 | 1.48 | h | |||||||||
1950 | 0.05 | 0.76 | 0.00 | 0.00 | 0.00 | 0.00 | 2.90 | 0.45 | 0.08 | 0.01 | 0.00 | 0.00 | 2.90 | |||||||||||||
1951 | 0.29 | 0.06 | 0.07 | 0.58 | 0.00 | 0.00 | 0.48 | 1.42 | 0.45 | 0.63 | 0.71 | 0.15 | 1.42 | |||||||||||||
1952 | 0.28 | 0.04 | 0.77 | 0.51 | 0.00 | 0.09 | 0.45 | 0.73 | 0.00 | 0.00 | 0.91 | 0.44 | 0.91 | |||||||||||||
1953 | 0.02 | 0.66 | 0.48 | 0.16 | 0.00 | 0.06 | 2.05 | 0.92 | 0.00 | 0.17 | 0.00 | 0.05 | 2.05 | |||||||||||||
1954 | 0.58 | 0.38 | 1.32 | 0.00 | 0.22 | 0.46 | 0.93 | 1.70 | 0.82 | 0.42 | 0.00 | 0.03 | 1.70 | |||||||||||||
1955 | 0.74 | 0.13 | 0.00 | 0.00 | d | 0.00 | 0.05 | 0.95 | 0.45 | 0.00 | 0.40 | 0.01 | 0.06 | 0.95 | d | |||||||||||
1956 | 0.66 | 0.27 | 0.00 | 0.12 | 0.00 | 0.16 | 1.28 | 0.35 | 0.34 | 0.09 | 0.00 | 0.52 | 1.28 | |||||||||||||
1957 | 0.33 | e | 0.40 | 1.18 | 0.07 | 0.14 | 0.00 | 0.45 | 0.25 | 0.01 | 1.81 | 0.33 | 0.38 | 1.81 | e | |||||||||||
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | 0.00 | 0.68 | 0.00 | 0.25 | 0.00 | 0.10 | 1.24 | 0.85 | 0.10 | 0.63 | 0.18 | 2.00 | 2.00 | |||||||||||||
1960 | 1.10 | 0.38 | 0.06 | 0.00 | 0.00 | 0.00 | 0.35 | 0.60 | 0.90 | 0.30 | 0.00 | 0.56 | 1.10 | |||||||||||||
1961 | 0.71 | 0.00 | 0.54 | 0.00 | 0.00 | 0.00 | 1.41 | 0.82 | 0.62 | 0.55 | 0.49 | 1.02 | 1.41 | |||||||||||||
1962 | 0.47 | 0.16 | 0.20 | 0.00 | 0.00 | 0.70 | 0.60 | 0.70 | 3.55 | 0.04 | 0.40 | 0.97 | 3.55 | |||||||||||||
1963 | 0.44 | 0.75 | 0.40 | 0.60 | 0.00 | 0.05 | 0.56 | 1.13 | 0.65 | 0.95 | 0.95 | ----- | z | ----- | z | |||||||||||
1964 | 0.06 | 0.20 | 0.50 | 0.50 | 0.00 | 0.00 | 1.02 | 2.00 | 0.61 | 0.60 | 0.73 | 0.60 | 2.00 | |||||||||||||
1965 | 0.57 | 0.87 | 0.11 | 0.45 | 0.00 | 0.00 | 0.70 | 1.72 | 0.18 | 0.00 | 0.21 | 1.50 | 1.72 | |||||||||||||
1966 | 0.70 | 1.66 | 0.05 | 0.00 | 0.03 | 0.05 | 1.95 | 1.43 | 0.42 | 0.38 | 0.75 | 0.10 | 1.95 | |||||||||||||
1967 | 0.02 | 0.01 | 0.10 | 0.25 | 0.35 | 0.53 | 0.96 | 1.40 | 0.40 | 0.57 | 0.40 | 2.80 | 2.80 | |||||||||||||
1968 | 0.10 | 0.55 | 1.22 | 0.34 | 0.00 | 0.00 | 1.72 | 1.07 | 0.43 | 0.23 | 0.40 | 0.41 | 1.72 | |||||||||||||
1969 | 0.48 | 0.10 | 0.22 | 0.34 | 0.34 | 0.00 | 2.25 | 0.92 | 0.45 | 0.00 | 0.70 | 0.19 | 2.25 | |||||||||||||
1970 | 0.35 | 0.17 | 0.95 | 0.02 | 0.00 | 0.00 | 1.03 | 1.32 | 4.08 | 0.10 | 0.02 | 0.16 | 4.08 | |||||||||||||
1971 | 0.00 | 0.59 | 0.00 | 0.08 | 0.00 | 0.00 | 1.60 | 1.50 | 0.57 | 0.70 | 0.36 | 0.38 | 1.60 | |||||||||||||
1972 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.23 | 0.45 | 0.89 | 0.35 | 2.70 | 1.08 | 0.12 | a | 2.70 | a | |||||||||||
1973 | 0.21 | h | 0.67 | 0.70 | 0.00 | 0.00 | 0.07 | 1.12 | 1.65 | 0.00 | 0.00 | 0.92 | 0.00 | 1.65 | h | |||||||||||
1974 | 0.34 | a | 0.00 | 0.46 | 0.00 | 0.00 | 0.00 | 1.65 | k | 0.21 | 0.85 | 0.93 | 0.00 | c | 0.24 | 1.65 | o | |||||||||
1975 | 0.00 | 0.08 | 0.52 | 0.46 | 0.00 | 0.00 | 1.12 | 1.65 | 1.83 | t | ----- | z | ----- | z | ----- | z | ----- | z | ||||||||
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.25 | a | ----- | z |
1999 | 0.00 | 0.00 | 0.12 | 0.70 | d | 0.00 | 0.00 | 1.43 | 1.24 | 0.40 | 0.00 | 0.00 | 0.00 | 1.43 | d | |||||||||||
2000 | 0.00 | 0.00 | 1.51 | 0.00 | 0.00 | 2.00 | 0.80 | 1.11 | b | 0.00 | 1.20 | 0.61 | 0.00 | 2.00 | b | |||||||||||
2001 | 0.80 | 0.50 | 0.50 | a | 0.70 | 0.50 | 0.90 | 1.45 | 1.87 | a | 0.10 | 0.08 | 0.30 | 0.46 | 1.87 | b | ||||||||||
2002 | 0.50 | 0.00 | 0.50 | 0.00 | 0.00 | 0.00 | 1.01 | 0.55 | 0.25 | 0.27 | 0.65 | 0.90 | 1.01 | |||||||||||||
2003 | 0.01 | 0.50 | 0.23 | 0.08 | 0.15 | 0.00 | 0.92 | b | 0.87 | 1.30 | 0.38 | 0.24 | 0.10 | 1.30 | b | |||||||||||
2004 | 0.75 | 0.34 | 0.40 | 0.60 | 0.00 | 0.00 | 0.98 | 1.47 | 1.50 | 0.29 | 0.54 | 1.25 | 1.50 | |||||||||||||
2005 | 0.39 | d | 1.02 | 0.20 | 0.09 | 0.00 | 0.00 | 0.85 | 1.60 | 0.40 | 0.10 | 0.00 | 0.00 | 1.60 | d | |||||||||||
2006 | 0.00 | 0.02 | 0.56 | 0.00 | 0.00 | 0.57 | a | 1.50 | a | 0.40 | 1.60 | a | 0.00 | 0.00 | b | 0.11 | 1.60 | e | ||||||||
2007 | 0.28 | 0.00 | 0.80 | c | 0.09 | b | 0.00 | f | 0.00 | f | 0.75 | c | 1.10 | b | 0.90 | d | 0.00 | e | 0.11 | b | 0.58 | b | ----- | z | ||
2008 | 0.70 | e | 1.10 | e | 0.25 | 0.00 | a | 0.06 | g | 0.00 | q | 0.10 | y | 2.00 | j | 1.10 | u | 0.00 | m | 0.36 | a | 0.30 | ----- | z | ||
2009 | 0.54 | 0.51 | b | 0.01 | 0.68 | 0.61 | d | 0.05 | 0.80 | a | 0.28 | 0.82 | a | 0.00 | 0.05 | a | 0.00 | 0.82 | i | |||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.39 | 0.36 | 0.41 | 0.24 | 0.12 | 0.26 | 1.12 | 1.03 | 0.70 | 0.45 | 0.36 | 0.45 | 1.84 | |||||||||||||
S.D. | 0.36 | 0.37 | 0.36 | 0.28 | 0.25 | 0.49 | 0.55 | 0.54 | 0.81 | 0.53 | 0.38 | 0.54 | 0.70 | |||||||||||||
SKEW | 1.16 | 1.22 | 1.11 | 1.05 | 2.37 | 2.33 | 0.87 | 0.28 | 2.37 | 2.05 | 0.95 | 2.21 | 1.32 | |||||||||||||
MAX | 1.80 | 1.66 | 1.51 | 0.99 | 1.04 | 2.00 | 2.90 | 2.45 | 4.08 | 2.70 | 1.60 | 2.80 | 4.08 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.18 | 0.19 | 0.00 | 0.00 | 0.00 | 0.00 | 0.91 | |||||||||||||
YRS | 52 | 55 | 56 | 54 | 49 | 49 | 50 | 53 | 52 | 49 | 52 | 54 | 36 |