YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.97 | p | 1.51 | 1.66 | 0.76 | 0.54 | 0.47 | 4.94 | g | |||||
1924 | 0.51 | 0.04 | 0.65 | 1.76 | a | 1.26 | 3.20 | 2.54 | 2.07 | 2.49 | 1.28 | 0.21 | a | 0.49 | 16.50 | |||||||||||
1925 | 0.39 | 0.92 | 1.03 | 3.21 | 1.87 | 4.74 | 1.54 | 2.70 | 8.77 | 0.92 | 0.86 | 0.34 | 27.29 | |||||||||||||
1926 | 0.89 | 0.64 | 0.64 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 2.17 | i | |||
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 3.48 | 1.02 | ----- | z | ----- | z | 4.50 | j | ||
1931 | ----- | z | ----- | z | ----- | z | 0.62 | 1.15 | 2.45 | 3.04 | 1.83 | 1.81 | 1.68 | 1.54 | 0.31 | 14.43 | c | |||||||||
1932 | 0.45 | 0.54 | 0.35 | 2.11 | 1.60 | 2.00 | 3.60 | 4.33 | 0.92 | 1.40 | ----- | z | ----- | z | 17.30 | b | ||||||||||
1933 | ----- | z | ----- | z | ----- | z | 0.84 | 1.66 | 2.98 | 2.42 | 0.86 | 1.42 | 0.92 | ----- | z | ----- | z | 11.10 | e | |||||||
1934 | ----- | z | ----- | z | ----- | z | ----- | z | 2.36 | 5.04 | 1.65 | 2.18 | 1.71 | 2.32 | ----- | z | ----- | z | 15.26 | f | ||||||
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.49 | 2.25 | 2.21 | 2.36 | 1.87 | ----- | z | ----- | z | 10.18 | g | |||||
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1945 | ----- | z | ----- | z | ----- | z | 3.21 | v | 0.56 | 2.47 | 2.80 | 3.97 | 3.20 | u | 0.67 | ----- | z | ----- | z | 10.47 | g | |||||
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.74 | a | 0.49 | a | 0.30 | k | ----- | z | ----- | z | 2.23 | j |
1949 | ----- | z | ----- | z | ----- | z | 0.49 | 4.54 | 3.99 | 5.79 | 3.79 | 0.73 | ----- | z | ----- | z | ----- | z | 19.33 | f | ||||||
1950 | ----- | z | ----- | z | ----- | z | 1.34 | g | 3.98 | d | 5.95 | a | 2.22 | 3.88 | 2.58 | 1.67 | j | ----- | z | ----- | z | 18.61 | g | |||
1951 | ----- | z | ----- | z | ----- | z | 1.41 | 1.62 | 2.48 | 2.35 | 5.41 | a | 3.84 | 1.55 | ----- | z | ----- | z | 18.66 | e | ||||||
1952 | ----- | z | ----- | z | ----- | z | 0.54 | 0.85 | 4.05 | 3.60 | j | 2.14 | 0.38 | 0.36 | ----- | z | ----- | z | 8.32 | f | ||||||
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.31 | 0.25 | 0.87 | 0.67 | 3.10 | h | ||||
1964 | 0.27 | 0.33 | 0.66 | 2.96 | 1.62 | 7.05 | 2.05 | 4.36 | 4.44 | 0.50 | 0.48 | 0.78 | 25.50 | |||||||||||||
1965 | 0.25 | 0.24 | 1.95 | 1.78 | 4.22 | 3.26 | 2.10 | 2.41 | 5.62 | a | 3.54 | 2.04 | 1.47 | 28.88 | ||||||||||||
1966 | 0.56 | 0.62 | 2.65 | 2.04 | 0.90 | 2.31 | ----- | z | 7.04 | 1.28 | 1.89 | 0.37 | 0.94 | 20.60 | a | |||||||||||
1967 | 1.16 | e | 0.43 | 1.03 | 2.94 | 1.52 | 4.73 | 0.78 | 1.17 | 1.32 | 1.81 | 0.48 | 1.10 | 18.47 | ||||||||||||
1968 | 0.39 | b | 0.00 | 1.61 | 2.01 | ----- | z | 7.63 | 5.68 | 3.77 | 6.14 | 2.88 | 0.11 | 0.87 | 31.09 | a | ||||||||||
1969 | 2.55 | 0.26 | 0.00 | 0.77 | a | 4.36 | 2.96 | 4.63 | 3.24 | 2.71 | 3.51 | ----- | z | 1.55 | 26.54 | a | ||||||||||
1970 | 0.08 | 0.31 | 0.94 | 3.32 | a | 3.53 | 3.10 | 1.28 | 2.74 | 2.74 | 4.18 | 0.96 | 0.55 | 23.73 | ||||||||||||
1971 | 0.81 | 0.17 | 0.34 | 1.45 | 2.45 | 4.70 | 5.51 | 1.03 | 4.62 | 6.67 | 1.50 | a | 0.18 | 29.43 | ||||||||||||
1972 | 0.83 | 0.28 | 0.64 | 1.71 | 1.51 | 1.94 | 6.50 | 3.28 | 2.05 | 1.79 | 0.78 | 0.85 | 22.16 | |||||||||||||
1973 | 0.08 | 0.21 | 0.90 | 1.22 | 1.29 | 2.68 | 4.34 | 5.22 | 7.58 | 2.23 | 0.84 | 0.54 | 27.13 | |||||||||||||
1974 | 0.83 | ----- | z | 0.49 | 2.62 | 3.52 | 2.44 | 2.00 | 6.55 | 0.32 | 1.64 | 0.33 | m | 0.94 | d | 21.35 | b | |||||||||
1975 | 2.34 | 0.43 | 0.99 | ----- | z | 2.40 | ----- | z | ----- | z | 2.51 | 2.01 | 2.27 | 0.61 | 0.71 | 14.27 | c | |||||||||
1976 | ----- | z | 0.51 | a | 1.61 | 0.45 | 0.35 | 7.40 | 2.52 | 1.52 | 0.79 | 0.68 | 0.01 | 0.66 | 16.50 | a | ||||||||||
1977 | 0.87 | 0.93 | 0.79 | 0.45 | 5.39 | 3.51 | 3.22 | 3.47 | 6.72 | 1.90 | 2.84 | 1.06 | 31.15 | |||||||||||||
1978 | 0.39 | c | 0.42 | 0.10 | 1.26 | 1.80 | 3.25 | 6.14 | 2.80 | 2.41 | ----- | z | 1.53 | a | 0.83 | 20.93 | a | |||||||||
1979 | ----- | z | 1.01 | i | 1.49 | 2.90 | 1.36 | f | 4.47 | 4.72 | 3.38 | 1.64 | ----- | z | ----- | z | ----- | z | 18.60 | f | ||||||
1980 | ----- | z | ----- | z | 0.25 | b | 0.08 | 0.49 | 2.46 | 2.14 | ----- | z | ----- | z | ----- | z | 1.49 | a | ----- | z | 6.91 | f | ||||
1981 | ----- | z | 0.19 | ----- | z | 1.71 | 2.15 | 6.92 | 3.42 | ----- | z | 2.68 | 2.11 | 0.87 | 0.71 | 20.76 | c | |||||||||
1982 | 0.80 | 0.55 | a | 0.84 | x | 1.16 | 2.91 | s | 2.83 | 5.05 | 3.00 | 3.45 | 4.25 | 1.44 | a | 0.13 | e | 22.66 | b | |||||||
1983 | 0.10 | 0.66 | b | 0.99 | a | 0.81 | 1.50 | d | 4.06 | 1.62 | b | 5.83 | 3.04 | 2.89 | 1.82 | 0.73 | e | 24.05 | ||||||||
1984 | 0.34 | 1.09 | a | 0.32 | 0.86 | a | 1.09 | 8.27 | 3.06 | 1.67 | 1.03 | d | 5.82 | 0.56 | 0.75 | 24.86 | ||||||||||
1985 | ----- | z | 0.67 | 0.51 | 2.14 | 5.52 | 4.36 | 1.11 | a | 3.36 | a | 2.45 | 2.15 | 1.68 | 0.52 | 24.47 | a | |||||||||
1986 | 0.61 | a | 0.79 | a | 0.36 | 2.84 | 1.40 | 3.36 | a | 4.13 | 1.37 | l | 2.98 | d | ----- | z | ----- | z | ----- | z | 16.47 | d | ||||
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 2.33 | 5.44 | 1.64 | 1.10 | c | 0.51 | 11.02 | g | ||||
1992 | 0.69 | 0.88 | 1.23 | a | 1.45 | c | 1.58 | a | 2.32 | 4.13 | 6.05 | b | 2.78 | 0.13 | a | 1.28 | 0.93 | 23.45 | ||||||||
1993 | 0.33 | 0.05 | 0.11 | a | 1.36 | 1.90 | 6.94 | 5.05 | 5.05 | 2.12 | 0.96 | 0.55 | b | 0.33 | 24.75 | |||||||||||
1994 | 0.36 | 0.26 | c | 0.39 | a | 1.07 | 1.76 | 6.36 | 6.92 | 3.34 | 3.44 | 1.68 | 1.55 | a | 0.25 | 27.38 | ||||||||||
1995 | 0.94 | 0.39 | 0.78 | 0.64 | c | 1.33 | 1.81 | 7.64 | 2.89 | 3.48 | 3.02 | 1.30 | e | 0.86 | c | 25.08 | ||||||||||
1996 | 1.11 | a | 1.02 | d | 0.40 | c | 1.28 | a | 1.90 | 3.47 | 4.84 | 2.50 | 1.94 | 3.84 | a | 2.40 | d | 1.25 | d | 25.95 | ||||||
1997 | 0.47 | b | 0.11 | d | 0.79 | 1.22 | a | 1.69 | b | 3.11 | 4.11 | 1.43 | 2.74 | 2.51 | 1.02 | d | 0.13 | b | 19.33 | |||||||
1998 | 0.47 | d | 0.62 | b | 0.46 | c | 1.08 | 4.93 | 4.07 | 3.19 | 4.73 | 0.74 | 4.08 | d | 2.16 | c | 0.41 | c | 26.94 | |||||||
1999 | 0.60 | c | 0.46 | b | 2.08 | a | 1.57 | 6.34 | 2.82 | 4.37 | 5.20 | 4.86 | 0.74 | 0.00 | k | 0.37 | 29.41 | a | ||||||||
2000 | 0.30 | f | 0.28 | a | 0.86 | a | 1.47 | 2.25 | 4.39 | b | 2.71 | 6.06 | 2.05 | 1.11 | a | 3.18 | k | 0.37 | e | 21.55 | b | |||||
2001 | 0.26 | a | 1.31 | e | 0.14 | 4.00 | 4.82 | 3.14 | 4.16 | 7.11 | 1.54 | 3.20 | 1.41 | 0.25 | c | 31.34 | ||||||||||
2002 | 0.11 | n | 0.06 | g | 0.47 | e | 1.51 | b | 2.08 | 7.89 | 2.96 | 6.21 | 0.82 | 1.24 | h | 0.17 | d | 0.60 | q | 22.11 | d | |||||
2003 | 0.10 | c | 0.21 | c | 0.61 | 0.87 | b | 1.68 | 4.62 | 2.97 | 2.99 | 2.42 | 1.49 | e | 1.20 | c | 0.68 | b | 19.84 | |||||||
2004 | 0.66 | f | 0.30 | k | 0.86 | b | 0.57 | 4.05 | 1.63 | i | 5.50 | 2.31 | 4.81 | 4.98 | 0.15 | a | 1.28 | e | 24.51 | c | ||||||
2005 | 1.37 | a | 0.35 | n | 0.05 | b | 0.22 | i | 5.18 | 6.21 | f | 2.28 | 2.40 | 1.70 | 3.63 | i | 3.32 | b | 0.68 | e | 16.98 | d | ||||
2006 | 0.64 | d | 0.78 | b | 2.47 | a | 1.88 | b | 2.79 | a | 1.42 | 1.16 | 2.90 | 2.16 | 1.38 | 0.85 | h | 1.03 | b | 18.61 | a | |||||
2007 | 0.18 | e | 0.86 | e | 1.33 | a | 2.35 | 3.01 | 3.62 | 2.70 | 1.53 | 3.68 | 4.61 | 0.39 | k | 0.84 | 24.71 | a | ||||||||
2008 | 0.07 | 0.42 | c | 0.18 | a | 2.82 | d | 2.00 | 4.63 | 1.70 | 1.99 | b | 2.81 | y | 3.63 | 2.19 | l | 1.41 | f | 17.44 | c | |||||
2009 | 0.34 | g | 1.04 | 3.58 | 1.51 | 2.23 | 2.27 | 2.83 | 3.50 | 1.46 | 2.89 | 0.41 | h | 1.18 | c | 22.49 | b | |||||||||
2010 | 0.71 | d | 0.16 | 0.46 | 0.95 | b | 3.18 | 3.19 | 5.21 | 2.25 | 5.73 | b | 2.01 | 0.44 | i | 0.82 | 24.67 | a | ||||||||
2011 | 1.12 | x | ----- | z | ----- | z | 2.97 | v | 2.28 | s | 4.46 | k | 1.81 | w | 2.10 | v | 1.49 | u | 0.61 | v | ----- | z | ----- | z | 0.00 | l |
2012 | ----- | z | ----- | z | 3.87 | v | ----- | z | 2.04 | k | 1.61 | v | 3.25 | w | 1.49 | w | 0.60 | a | 3.34 | a | 0.71 | m | 0.44 | 4.38 | i | |
2013 | 1.67 | a | 1.20 | b | ----- | z | 1.34 | f | 3.42 | 3.05 | 5.28 | 1.60 | a | 2.66 | 2.30 | 0.82 | i | 1.20 | d | 22.38 | c | |||||
2014 | 0.60 | 0.69 | b | 0.68 | 1.88 | 4.43 | 8.28 | 3.74 | a | 1.83 | d | 2.99 | 1.42 | b | 0.23 | b | 0.44 | c | 27.21 | |||||||
2015 | 0.58 | 0.39 | 0.31 | m | 0.46 | b | 6.10 | 2.90 | 2.99 | a | 6.90 | 1.23 | 2.35 | 2.40 | 1.06 | 27.36 | a | |||||||||
2016 | 0.26 | 0.61 | 0.43 | a | 2.37 | 1.85 | a | 7.60 | 3.14 | c | 9.05 | b | 3.04 | f | 1.23 | 0.80 | 1.19 | a | 28.53 | a | ||||||
2017 | 0.86 | 1.05 | 0.64 | 1.04 | 0.82 | 3.56 | 0.89 | a | 3.11 | a | 3.95 | 1.90 | 0.77 | 0.88 | 19.47 | |||||||||||
2018 | 0.35 | c | 0.84 | v | ----- | z | ----- | z | 3.15 | u | 4.33 | r | 3.98 | v | 1.59 | w | 6.93 | r | 4.24 | n | 0.89 | s | ----- | z | 0.35 | k |
2019 | 0.37 | a | 1.19 | b | 1.15 | b | 1.59 | 2.21 | g | 4.20 | d | 3.05 | d | 3.57 | a | 4.02 | 4.06 | 0.61 | b | 1.41 | b | 25.22 | a | |||
2020 | 1.06 | 0.05 | a | 0.39 | 0.94 | 1.54 | a | 4.90 | 2.67 | 5.49 | a | 1.55 | a | 1.80 | 0.27 | 0.76 | a | 21.42 | ||||||||
2021 | 0.38 | k | 0.02 | d | 0.05 | 3.49 | 0.51 | d | 1.69 | e | 0.69 | 2.11 | 4.54 | d | 3.53 | j | 1.33 | c | 1.09 | k | 14.43 | c | ||||
2022 | 0.44 | 0.84 | 0.02 | 6.29 | a | 4.36 | 2.72 | 2.44 | a | 3.88 | 0.12 | s | 1.15 | f | 1.52 | 1.64 | a | 24.15 | b | |||||||
2023 | 0.22 | 0.30 | 1.13 | g | 1.78 | 1.49 | 3.22 | 1.65 | 2.72 | 3.53 | 2.75 | 0.71 | 1.67 | 20.04 | a | |||||||||||
2024 | 0.41 | 0.94 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.35 | j | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.64 | 0.54 | 0.82 | 1.68 | 2.50 | 3.98 | 3.33 | 3.44 | 2.78 | 2.25 | 1.10 | 0.77 | 24.64 | |||||||||||||
S.D. | 0.52 | 0.35 | 0.72 | 1.08 | 1.54 | 1.82 | 1.62 | 1.77 | 1.79 | 1.39 | 0.75 | 0.39 | 3.98 | |||||||||||||
SKEW | 1.94 | 0.38 | 1.72 | 1.61 | 0.83 | 0.95 | 0.57 | 0.96 | 1.11 | 0.95 | 0.85 | 0.43 | -0.26 | |||||||||||||
MAX | 2.55 | 1.31 | 3.58 | 6.29 | 6.34 | 8.28 | 7.64 | 9.05 | 8.77 | 6.67 | 3.32 | 1.67 | 31.34 | |||||||||||||
MIN | 0.07 | 0.00 | 0.00 | 0.08 | 0.35 | 1.42 | 0.69 | 0.86 | 0.32 | 0.13 | 0.01 | 0.13 | 16.50 | |||||||||||||
YRS | 48 | 51 | 51 | 57 | 59 | 61 | 61 | 64 | 65 | 59 | 46 | 53 | 24 |