YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1925 | 4.00 | v | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.67 | 1.10 | 1.00 | ----- | z | ----- | z | ----- | z | |||
1927 | 2.00 | 1.50 | 2.00 | 0.70 | a | 1.13 | p | 0.90 | ----- | z | ----- | z | ----- | z | 2.35 | 2.90 | 1.71 | a | ----- | z | ||||||
1928 | 1.72 | 0.40 | 1.39 | 1.09 | e | 0.54 | x | 0.39 | 0.41 | ----- | z | 0.88 | 1.70 | c | 1.30 | n | 1.49 | e | ----- | z | ||||||
1929 | 1.37 | d | 0.78 | 1.34 | 0.70 | a | 0.88 | 0.75 | ----- | z | ----- | z | 0.51 | a | 0.41 | b | 0.68 | 2.00 | ----- | z | ||||||
1930 | 1.25 | 2.09 | 1.47 | 0.85 | a | 0.81 | 0.48 | 0.00 | d | 0.00 | 0.37 | a | 1.84 | u | 1.91 | b | 1.01 | s | ----- | z | ||||||
1931 | 0.92 | 1.35 | 3.85 | n | 0.87 | 1.24 | 0.70 | l | ----- | z | ----- | z | 0.83 | k | 2.00 | 1.15 | 1.62 | ----- | z | |||||||
1932 | 2.00 | f | 1.85 | b | 3.49 | i | 0.70 | m | 0.30 | 0.12 | 0.60 | 0.39 | 0.65 | 1.25 | 2.58 | 1.92 | ----- | z | ||||||||
1933 | 1.94 | k | 1.26 | c | 0.80 | 0.60 | 1.10 | t | 2.00 | 0.16 | 1.04 | 0.70 | n | 1.94 | 1.00 | 4.95 | g | ----- | z | |||||||
1934 | 2.05 | i | 0.80 | o | 2.16 | 0.60 | 0.60 | 0.16 | 0.12 | 0.40 | 0.79 | a | 2.05 | 1.26 | 1.94 | 2.16 | y | |||||||||
1935 | 0.96 | n | 1.09 | 1.26 | w | 0.76 | 0.22 | 0.61 | 0.19 | 0.56 | 0.89 | 0.98 | 0.98 | 1.00 | ----- | z | ||||||||||
1936 | 1.83 | 1.62 | 2.01 | 0.31 | 1.33 | 2.27 | 0.59 | 0.75 | 0.87 | 1.08 | 0.56 | 1.54 | k | 2.27 | k | |||||||||||
1937 | 1.54 | n | 1.46 | 0.80 | m | 1.05 | h | 0.70 | 1.20 | p | 0.11 | 0.54 | 1.05 | 1.20 | 3.56 | a | 0.97 | t | ----- | z | ||||||
1938 | 1.80 | p | 1.10 | j | 1.47 | c | 2.20 | p | 0.70 | ----- | z | ----- | z | ----- | z | 0.16 | t | 0.98 | l | 2.12 | j | 1.17 | ----- | z | ||
1939 | 1.80 | 2.35 | 0.96 | o | 0.48 | q | 0.80 | l | 0.78 | p | 0.56 | y | ----- | z | 0.95 | t | 1.13 | n | 0.67 | m | 1.30 | e | ----- | z | ||
1940 | 0.36 | p | 1.80 | 1.06 | h | 1.13 | d | 0.70 | v | ----- | z | 0.81 | ----- | z | 1.14 | 0.89 | 1.36 | 1.16 | ----- | z | ||||||
1941 | 0.94 | 0.42 | 0.75 | 1.27 | 0.77 | 0.59 | 0.00 | 0.82 | 0.85 | 1.09 | i | 1.07 | 2.70 | 2.70 | i | |||||||||||
1942 | 0.78 | t | 0.98 | 1.16 | 0.82 | 0.78 | 1.03 | 1.06 | 0.36 | 0.12 | 2.90 | 2.65 | 1.26 | 2.90 | t | |||||||||||
1943 | 0.80 | 2.12 | 1.75 | 0.75 | 0.51 | 0.50 | 0.25 | 0.25 | 0.29 | 0.91 | 1.31 | 1.60 | 2.12 | |||||||||||||
1944 | 0.90 | 0.94 | 1.26 | 0.86 | 1.11 | 0.57 | 0.05 | 0.11 | 1.15 | 0.53 | 1.12 | 1.33 | 1.33 | |||||||||||||
1945 | 1.49 | 1.20 | 0.74 | a | 0.73 | 0.59 | 0.25 | 0.34 | 0.42 | 1.87 | e | 0.69 | a | 1.73 | f | 3.20 | 3.20 | m | ||||||||
1946 | 1.72 | a | 2.07 | 1.01 | 1.00 | 0.43 | 0.62 | 0.88 | 0.12 | 0.45 | 1.60 | m | 1.80 | 4.09 | 4.09 | n | ||||||||||
1947 | 2.05 | 1.39 | 1.08 | 1.00 | 0.23 | 1.07 | 0.50 | 0.27 | 0.80 | 2.94 | 1.22 | 1.02 | 2.94 | |||||||||||||
1948 | 1.60 | s | ----- | z | ----- | z | 1.00 | 0.58 | m | 0.96 | 0.48 | 0.45 | 1.43 | 1.95 | 1.50 | 2.70 | ----- | z | ||||||||
1949 | 1.76 | 3.03 | 0.64 | 0.42 | 2.53 | 0.40 | 0.26 | 0.50 | 0.83 | 1.99 | 1.86 | b | 1.25 | m | 3.03 | o | ||||||||||
1950 | 2.05 | 1.77 | a | 1.75 | 0.95 | 0.40 | ----- | z | 0.69 | 1.25 | 1.00 | 1.64 | 1.26 | ----- | z | ----- | z | |||||||||
1951 | 1.15 | 1.68 | e | 0.97 | o | ----- | z | ----- | z | 0.15 | 0.15 | 0.96 | 1.26 | 1.92 | 1.68 | 1.05 | ----- | z | ||||||||
1952 | 1.10 | 1.00 | 1.28 | 0.72 | 0.54 | 0.31 | 0.00 | 0.27 | 0.26 | 0.33 | 0.17 | 1.10 | 1.28 | |||||||||||||
1953 | 1.80 | 0.94 | 0.71 | 1.63 | l | 0.77 | 0.98 | 0.62 | 0.76 | 0.73 | 0.79 | 1.37 | 2.12 | 2.12 | l | |||||||||||
1954 | 2.45 | b | 1.34 | b | 0.92 | 0.67 | 1.64 | q | 1.06 | 0.30 | 0.56 | 0.51 | 1.06 | 1.39 | d | 4.30 | b | ----- | z | |||||||
1955 | 0.90 | 1.70 | 1.42 | 0.85 | 0.63 | 0.58 | 0.77 | 0.00 | 1.27 | 2.20 | 2.13 | 2.26 | 2.26 | |||||||||||||
1956 | 1.63 | 0.83 | ----- | z | 0.39 | n | ----- | z | 1.04 | 0.09 | 0.72 | 0.90 | 1.14 | 1.02 | 4.54 | ----- | z | |||||||||
1957 | 1.30 | 1.01 | 1.89 | 1.02 | g | 0.69 | 0.84 | 0.28 | 1.29 | 0.26 | 0.92 | 1.66 | 2.32 | 2.32 | g | |||||||||||
1958 | 0.98 | 0.71 | 0.60 | 1.55 | 1.00 | 1.03 | 0.57 | 1.10 | 0.65 | 1.65 | 3.97 | 1.40 | 3.97 | |||||||||||||
1959 | 1.87 | 1.15 | 1.72 | a | 2.06 | d | ----- | z | 1.08 | 0.26 | 0.47 | 1.80 | 2.37 | 9.04 | 1.49 | a | ----- | z | ||||||||
1960 | 1.60 | d | 1.72 | b | 1.90 | d | 0.84 | 1.42 | b | 0.79 | ----- | z | 1.07 | c | 0.60 | i | 1.05 | b | 2.05 | c | 2.26 | f | ----- | z | ||
1961 | 1.93 | b | 2.54 | h | 2.46 | j | 1.72 | n | 1.27 | b | 0.47 | 0.83 | 1.18 | 1.26 | 1.37 | b | 3.35 | 3.51 | o | ----- | z | |||||
1962 | 0.90 | f | ----- | z | 1.60 | n | 2.22 | c | 0.67 | c | 0.87 | a | 0.36 | 0.60 | 0.59 | 1.01 | 4.97 | 1.74 | a | ----- | z | |||||
1963 | 1.42 | 2.64 | b | 1.43 | 1.23 | 0.85 | 0.42 | 0.48 | a | 0.49 | 0.67 | 1.35 | 1.53 | 1.65 | 2.64 | c | ||||||||||
1964 | 3.25 | c | 1.70 | 0.98 | 1.46 | 0.79 | 1.03 | 0.46 | 0.57 | 0.57 | ----- | z | 2.30 | 2.20 | a | ----- | z | |||||||||
1965 | 2.63 | 1.62 | 0.32 | 2.00 | a | 0.88 | 0.21 | 0.15 | ----- | z | 0.59 | 1.02 | 1.50 | ----- | z | ----- | z | |||||||||
1966 | 4.15 | d | 1.32 | 1.20 | 0.90 | 0.50 | 0.84 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |||||
1967 | 3.60 | b | 1.20 | 1.46 | 0.81 | 0.56 | ----- | z | 0.00 | 0.04 | 0.68 | 2.48 | 1.20 | 4.10 | p | ----- | z | |||||||||
1968 | 1.28 | 3.53 | f | 1.87 | a | ----- | z | 0.84 | 2.47 | 0.31 | 1.30 | 1.40 | 2.65 | f | 4.18 | f | 1.77 | ----- | z | |||||||
1969 | 1.90 | k | 1.12 | a | 0.82 | 1.00 | 0.94 | a | 1.76 | a | 0.10 | 0.54 | 2.07 | a | 1.10 | 2.00 | e | 1.60 | b | 2.07 | v | |||||
1970 | 3.87 | h | 2.10 | 1.45 | b | 1.21 | c | 1.02 | 0.55 | 0.23 | 0.03 | 1.20 | 1.25 | b | 2.12 | 1.76 | 3.87 | o | ||||||||
1971 | 5.79 | a | ----- | z | ----- | z | 1.24 | b | 1.23 | 1.35 | 0.53 | 0.52 | 1.03 | a | ----- | z | 1.50 | f | 5.24 | m | ----- | z | ||||
1972 | 5.00 | p | 2.35 | d | 3.20 | g | 1.50 | g | 0.88 | 0.82 | 0.72 | 0.63 | 1.90 | a | 0.50 | a | 3.50 | r | 4.65 | k | ----- | z | ||||
1973 | 1.50 | k | ----- | z | 0.82 | e | 0.67 | d | 0.65 | 0.78 | 0.00 | 0.07 | 1.43 | 1.76 | r | 5.13 | l | 6.26 | m | ----- | z | |||||
1974 | 3.37 | c | 2.60 | e | 1.27 | d | 1.00 | 1.20 | d | 1.80 | 0.75 | 0.03 | 0.25 | 0.60 | a | 1.91 | a | 2.63 | l | ----- | z | |||||
1975 | 2.71 | d | 1.09 | g | ----- | z | ----- | z | 0.33 | s | 0.80 | 0.27 | 1.10 | e | ----- | z | 1.40 | p | 3.05 | g | 2.60 | e | ----- | z | ||
1976 | 2.45 | 2.15 | b | 1.14 | b | 0.87 | 0.66 | a | 0.37 | 1.00 | 0.95 | 0.20 | 2.05 | a | 0.20 | p | 0.68 | h | ----- | z | ||||||
1977 | 1.22 | b | 1.20 | c | 1.90 | b | 0.77 | 1.10 | a | 1.10 | 0.17 | 1.40 | 1.40 | c | 2.80 | e | 3.50 | o | 5.58 | a | ----- | z | ||||
1978 | 0.80 | c | 0.73 | 0.70 | a | 1.47 | 2.01 | a | 1.40 | 0.70 | 1.10 | 1.49 | g | 1.30 | 1.65 | a | 1.90 | e | 2.01 | r | ||||||
1979 | 0.83 | c | 2.40 | e | 1.65 | a | 0.70 | 0.97 | a | 0.35 | 1.15 | 0.08 | 0.09 | g | ----- | z | ----- | z | 3.00 | g | ----- | z | ||||
1980 | 4.80 | e | 1.32 | b | 0.75 | b | 1.40 | c | 0.73 | c | 0.70 | 0.12 | 0.48 | 1.08 | a | 0.55 | b | 1.70 | c | 2.45 | a | 4.80 | v | |||
1981 | 1.28 | a | 3.61 | b | 0.55 | c | 1.00 | f | 0.83 | g | 1.30 | b | 0.95 | 0.81 | 1.45 | a | 2.15 | e | 1.38 | c | 2.07 | o | ----- | z | ||
1982 | 2.78 | 3.75 | 1.10 | 2.53 | u | 0.67 | 0.41 | 1.20 | 0.46 | 1.20 | 1.95 | 3.69 | h | 1.65 | ----- | z | ||||||||||
1983 | ----- | z | ----- | z | 2.41 | 1.26 | 1.03 | ----- | z | 2.12 | 0.80 | 1.16 | 1.50 | g | 2.10 | 1.21 | a | ----- | z | |||||||
1984 | 3.10 | d | 2.25 | c | 1.50 | d | 1.50 | 1.11 | ----- | z | ----- | z | 0.06 | 1.30 | 1.50 | 1.30 | 1.78 | ----- | z | |||||||
1985 | 0.44 | 1.66 | 1.40 | 0.75 | 0.62 | 2.35 | 0.24 | 1.10 | 0.71 | 1.72 | 2.05 | 0.75 | 2.35 | |||||||||||||
1986 | 1.10 | 3.30 | c | 1.17 | 1.52 | a | 1.03 | 0.66 | ----- | z | 0.03 | 1.70 | 2.03 | 6.00 | a | 0.95 | ----- | z | ||||||||
1987 | 2.80 | c | 1.19 | 1.80 | 0.89 | 0.96 | 0.47 | 0.28 | 0.27 | 0.67 | 0.20 | 1.07 | 2.30 | 2.80 | c | |||||||||||
1988 | 1.39 | 1.56 | 1.86 | 2.30 | c | 1.37 | a | 0.55 | 0.38 | 0.28 | 1.40 | 1.80 | 1.95 | e | 1.52 | c | 2.30 | l | ||||||||
1989 | 1.86 | 1.13 | c | 1.18 | 0.98 | b | 0.66 | ----- | z | 1.90 | 1.23 | 0.59 | 0.61 | 2.59 | 1.43 | ----- | z | |||||||||
1990 | 3.36 | c | 4.34 | 0.75 | 1.62 | 1.01 | 0.73 | 0.35 | 0.68 | 0.21 | 2.12 | 5.50 | 1.93 | d | 5.50 | g | ||||||||||
1991 | 1.40 | b | 2.59 | e | 1.82 | b | 2.40 | d | 1.30 | 1.05 | 0.21 | 0.44 | 0.01 | 0.79 | 2.50 | 2.47 | b | 2.59 | o | |||||||
1992 | 1.35 | g | 2.03 | l | 0.40 | 1.34 | 0.40 | a | 0.80 | 0.50 | 0.50 | 1.94 | 0.44 | c | 2.88 | i | 1.84 | ----- | z | |||||||
1993 | 2.02 | 0.06 | 2.06 | n | 4.60 | j | 1.67 | 0.97 | k | 1.11 | 0.32 | 0.25 | 0.38 | 1.00 | 2.00 | ----- | z | |||||||||
1994 | 1.76 | 1.75 | 1.05 | 0.70 | 0.90 | 1.11 | ----- | z | ----- | z | 1.10 | 3.75 | ----- | z | 2.12 | ----- | z | |||||||||
1995 | 1.62 | 2.00 | 1.69 | d | 0.68 | 0.89 | 0.41 | 0.41 | 0.82 | 1.51 | 3.54 | a | 4.16 | 1.97 | l | 4.16 | q | |||||||||
1996 | 7.21 | 2.96 | 1.21 | 1.32 | 1.43 | 0.54 | 1.01 | 0.40 | 1.65 | 2.89 | 2.06 | 3.00 | g | 7.21 | g | |||||||||||
1997 | 2.71 | b | 1.86 | c | 2.54 | d | 1.86 | a | 0.65 | 1.85 | a | 0.79 | 0.73 | 1.40 | 2.62 | a | 1.61 | d | 1.94 | d | 2.71 | t | ||||
1998 | 1.35 | b | 0.92 | 1.74 | 0.42 | 0.71 | 0.80 | b | 0.19 | 0.00 | 0.13 | 0.95 | 2.50 | h | 6.08 | a | 6.08 | m | ||||||||
1999 | 2.30 | 2.28 | 1.25 | 0.35 | 1.00 | 0.64 | 1.65 | 0.60 | 0.60 | 1.21 | 6.53 | 2.20 | a | 6.53 | a | |||||||||||
2000 | 4.08 | n | 1.68 | j | 1.05 | 1.22 | 1.62 | 2.50 | 1.68 | 1.00 | 1.48 | l | 4.29 | a | 2.00 | 2.31 | ----- | z | ||||||||
2001 | 1.30 | 2.00 | 1.28 | 2.30 | c | 0.75 | 1.10 | 0.75 | ----- | z | 0.53 | 2.00 | h | 2.50 | 2.30 | h | ----- | z | ||||||||
2002 | 2.60 | j | 0.96 | 1.47 | c | 1.87 | 0.80 | 1.55 | e | 0.27 | 1.10 | a | 0.97 | 1.10 | 1.20 | 1.85 | a | 2.60 | t | |||||||
2003 | 3.60 | 1.72 | 1.36 | j | 0.76 | b | 0.95 | 0.16 | 0.01 | 0.00 | 0.50 | 1.76 | 1.75 | b | 2.01 | e | 3.60 | s | ||||||||
2004 | 2.40 | i | 0.87 | d | 1.54 | 0.50 | 0.95 | c | 1.31 | 0.01 | 1.55 | b | 1.19 | 1.71 | c | 1.26 | 1.00 | a | 2.40 | v | ||||||
2005 | 5.20 | 0.84 | a | 3.10 | 1.19 | a | 2.00 | o | 1.00 | 0.89 | b | 0.48 | 2.20 | 2.15 | c | 2.03 | g | 2.18 | d | ----- | z | |||||
2006 | 2.40 | b | 1.00 | 0.56 | 1.14 | l | 1.56 | b | 0.84 | 0.22 | 0.25 | 0.74 | 1.34 | 10.40 | k | 1.63 | a | ----- | z | |||||||
2007 | 3.31 | 2.20 | 2.40 | a | 2.40 | 0.59 | 0.50 | 2.05 | 0.57 | 0.51 | b | 1.41 | o | 1.74 | a | 2.47 | m | ----- | z | |||||||
2008 | 5.33 | g | 1.95 | b | 0.96 | l | 0.80 | g | 0.84 | a | 1.80 | 0.22 | 0.96 | 0.42 | b | 0.73 | 3.04 | 1.20 | h | ----- | z | |||||
2009 | 13.73 | k | 1.90 | c | 1.42 | q | 2.00 | l | 1.33 | o | 0.32 | g | 0.00 | e | 0.36 | i | 1.73 | k | 2.79 | u | 2.10 | s | 2.40 | p | ----- | z |
2010 | 3.41 | x | 0.90 | v | ----- | z | ----- | z | 2.80 | x | 3.52 | y | 0.23 | f | 0.05 | i | 2.07 | i | 2.40 | q | 2.06 | n | 3.50 | s | ----- | z |
2011 | 4.90 | q | 1.61 | r | 2.83 | n | 1.67 | j | 3.04 | p | 1.14 | p | 0.30 | p | ----- | z | ----- | z | 1.70 | t | 2.90 | w | 3.10 | p | ----- | z |
2012 | 6.05 | x | 5.80 | k | 2.23 | u | 2.36 | v | ----- | z | 1.14 | q | 1.10 | u | ----- | z | ----- | z | 3.30 | t | 1.99 | r | 2.54 | v | ----- | z |
2013 | 4.91 | v | 2.58 | r | 1.46 | u | 1.95 | t | ----- | z | ----- | z | ----- | z | ----- | z | 3.75 | y | ----- | z | ----- | z | ----- | z | ----- | z |
2014 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2015 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2016 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2017 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2018 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 2.13 | 1.67 | 1.35 | 1.11 | 0.90 | 0.90 | 0.52 | 0.59 | 0.93 | 1.54 | 2.15 | 2.04 | 2.82 | |||||||||||||
S.D. | 1.29 | 0.80 | 0.55 | 0.52 | 0.40 | 0.56 | 0.49 | 0.40 | 0.51 | 0.86 | 1.52 | 1.04 | 1.52 | |||||||||||||
SKEW | 1.73 | 0.90 | 0.55 | 0.97 | 1.33 | 1.14 | 1.46 | 0.33 | 0.40 | 0.86 | 2.35 | 2.10 | 1.50 | |||||||||||||
MAX | 7.21 | 4.34 | 3.10 | 2.40 | 2.53 | 2.50 | 2.12 | 1.55 | 2.20 | 4.29 | 9.04 | 6.08 | 6.53 | |||||||||||||
MIN | 0.44 | 0.06 | 0.32 | 0.31 | 0.22 | 0.12 | 0.00 | 0.00 | 0.01 | 0.20 | 0.17 | 0.75 | 1.28 | |||||||||||||
YRS | 62 | 71 | 65 | 65 | 69 | 71 | 73 | 72 | 72 | 68 | 63 | 59 | 10 |