YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.55 | a | 0.59 | 0.17 | 0.88 | 0.85 | ----- | z | ||||
1924 | 0.00 | 0.00 | 0.78 | 0.07 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||||
1925 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.28 | r | 0.31 | 0.69 | 1.82 | 0.76 | 0.11 | ----- | z | ----- | z | |||||
1926 | 0.20 | ----- | z | 2.09 | 2.01 | 0.09 | 0.08 | 1.12 | 0.70 | 0.92 | 0.06 | 0.29 | 0.87 | ----- | z | |||||||||||
1927 | 0.06 | i | 1.14 | 0.76 | 0.56 | a | 0.13 | 1.26 | b | 0.39 | f | 0.62 | a | 3.00 | 0.17 | 0.45 | 2.00 | 3.00 | s | |||||||
1928 | 0.15 | 0.78 | 0.23 | 0.02 | 0.15 | 0.00 | b | 1.05 | 2.00 | 0.00 | 0.36 | 0.00 | t | 0.72 | 2.00 | v | ||||||||||
1929 | 0.75 | 0.27 | 0.49 | 0.59 | 0.00 | 0.00 | a | 0.64 | a | 1.60 | 0.14 | 0.15 | 0.00 | 0.00 | 1.60 | b | ||||||||||
1930 | 0.97 | 0.64 | 1.24 | 0.57 | 0.54 | 0.50 | 0.93 | b | 4.49 | 0.21 | 0.39 | g | 0.49 | t | 0.10 | ----- | z | |||||||||
1931 | 0.27 | 1.20 | 0.32 | 0.55 | 0.14 | 1.20 | 1.40 | 1.40 | 0.19 | 0.12 | e | 2.35 | 0.84 | 2.35 | e | |||||||||||
1932 | 0.42 | 0.78 | 0.18 | 0.18 | 0.00 | 0.05 | 0.34 | 0.71 | 0.45 | 0.45 | 0.00 | 0.76 | b | 0.78 | b | |||||||||||
1933 | 1.49 | e | 0.69 | e | 0.00 | 0.78 | 0.07 | 0.00 | 0.16 | 0.63 | 1.41 | 0.28 | 0.76 | 0.10 | 1.49 | j | ||||||||||
1934 | 0.17 | 1.24 | 0.20 | 0.41 | 0.04 | 0.35 | 0.10 | 1.45 | 0.37 | 0.00 | 0.64 | 0.92 | 1.45 | |||||||||||||
1935 | 0.75 | 0.74 | 0.78 | 0.55 | 0.21 | 0.00 | 1.26 | 1.91 | 0.48 | 0.00 | 0.80 | 0.12 | 1.91 | |||||||||||||
1936 | 1.00 | 0.57 | 0.74 | 0.00 | 0.00 | 0.02 | 0.51 | 0.85 | 0.58 | 0.63 | 0.63 | 1.25 | 1.25 | |||||||||||||
1937 | 0.91 | a | 1.20 | 0.70 | 0.00 | 0.21 | 0.11 | i | 0.20 | 0.11 | 0.60 | 0.00 | 0.10 | 0.95 | 1.20 | j | ||||||||||
1938 | 0.50 | 0.51 | 0.91 | i | 0.08 | 0.00 | 0.45 | 0.24 | 0.33 | 0.12 | 0.00 | 0.00 | 0.70 | 0.91 | i | |||||||||||
1939 | 0.59 | 0.53 | 0.60 | 0.22 | 0.00 | f | 0.00 | b | 0.06 | 2.00 | 0.90 | g | 0.17 | 0.70 | 0.13 | 2.00 | o | |||||||||
1940 | 0.22 | 0.84 | 0.08 | 0.66 | 0.00 | 0.05 | 0.73 | 0.50 | h | 0.30 | i | 1.35 | 0.94 | f | 0.75 | i | ----- | z | ||||||||
1941 | 0.12 | i | 1.38 | 1.37 | 2.15 | 1.40 | j | 0.00 | i | 0.66 | 1.05 | 1.13 | 0.12 | b | 2.25 | i | 1.36 | g | ----- | z | ||||||
1942 | 0.80 | 0.48 | 0.51 | ----- | z | 0.00 | 0.00 | 1.19 | 1.64 | 0.91 | 0.41 | 0.00 | 0.55 | ----- | z | |||||||||||
1943 | 0.45 | i | 0.12 | b | 1.17 | 0.00 | 0.00 | 0.00 | 0.00 | 2.06 | 0.83 | h | 0.65 | 0.00 | 0.93 | 2.06 | s | |||||||||
1944 | 0.47 | 1.20 | 0.66 | 0.77 | e | 1.14 | h | 0.00 | d | 0.24 | a | 0.71 | 0.62 | f | 0.22 | a | 0.75 | 0.59 | 1.20 | y | ||||||
1945 | 0.90 | 0.14 | 0.95 | 0.00 | 0.00 | j | 0.00 | 0.12 | m | 0.53 | 0.00 | 0.52 | j | 0.00 | 0.42 | ----- | z | |||||||||
1946 | 0.50 | 0.65 | 0.15 | 0.30 | 0.00 | 0.00 | 0.42 | 0.69 | 2.20 | 0.27 | 1.10 | 1.12 | 2.20 | |||||||||||||
1947 | 0.18 | 0.80 | 0.00 | 0.00 | 0.36 | 0.00 | 0.14 | 1.20 | 1.64 | 0.86 | 0.26 | 0.84 | 1.64 | |||||||||||||
1948 | 0.00 | 0.42 | 0.48 | 0.00 | 0.00 | 0.06 | 0.51 | 1.00 | 0.00 | 0.39 | 0.00 | 0.82 | 1.00 | |||||||||||||
1949 | 1.06 | 0.26 | 0.13 | 0.35 | 0.09 | 1.99 | 0.47 | 0.03 | 0.97 | 0.44 | 0.47 | 0.99 | 1.99 | |||||||||||||
1950 | 1.06 | 1.02 | 0.27 | h | 0.00 | 0.07 | 0.33 | 0.76 | 0.10 | 0.50 | 0.00 | 0.17 | 0.00 | l | 1.06 | t | ||||||||||
1951 | 1.22 | 0.35 | 0.73 | a | 0.83 | 0.23 | 0.00 | 0.68 | 2.02 | 0.25 | 0.24 | 0.85 | 1.14 | 2.02 | a | |||||||||||
1952 | 0.80 | 0.37 | c | 0.84 | 0.89 | 0.00 | 0.21 | 0.68 | g | 0.38 | 0.67 | 0.00 | 1.40 | 0.67 | 1.40 | j | ||||||||||
1953 | 0.43 | 0.35 | 0.72 | 0.03 | 0.06 | 0.00 | 0.94 | 0.17 | 0.00 | 0.00 | 0.00 | a | 0.03 | e | 0.94 | f | ||||||||||
1954 | 0.46 | 0.95 | 1.64 | 0.00 | 0.06 | 0.02 | 1.52 | 1.55 | 2.07 | 0.00 | a | 0.00 | 0.06 | 2.07 | a | |||||||||||
1955 | 1.16 | 0.05 | 0.00 | 0.00 | 0.00 | 1.49 | 1.33 | 1.71 | 0.04 | 0.00 | 0.25 | 0.63 | 1.71 | |||||||||||||
1956 | 0.69 | 0.39 | 0.00 | 0.19 | 0.00 | a | 0.02 | 0.35 | 0.25 | 0.30 | 0.33 | 0.00 | 0.06 | 0.69 | a | |||||||||||
1957 | 0.87 | 0.31 | 0.63 | 0.09 | 0.25 | 0.32 | 0.46 | 0.52 | 0.00 | 1.35 | 0.09 | 0.17 | 1.35 | |||||||||||||
1958 | 0.05 | 0.87 | 0.85 | 0.39 | 0.00 | 0.11 | 0.09 | 0.64 | 1.27 | 0.60 | 0.57 | 0.00 | 1.27 | |||||||||||||
1959 | 0.48 | 1.11 | 0.00 | 0.05 | 0.00 | 0.25 | 0.78 | 0.78 | 0.13 | 3.68 | 0.35 | 1.69 | 3.68 | |||||||||||||
1960 | 0.78 | 0.11 | 0.25 | 0.00 | 0.09 | 0.00 | 1.15 | 0.66 | 0.30 | 1.74 | 0.15 | 0.00 | 1.74 | |||||||||||||
1961 | 0.37 | 0.10 | 0.73 | 0.00 | 0.00 | 0.00 | 0.73 | 0.35 | 0.40 | 0.21 | 0.12 | 1.41 | 1.41 | |||||||||||||
1962 | 1.15 | 0.28 | 0.54 | 0.07 | 0.00 | 0.02 | 0.03 | 0.16 | 0.26 | 0.06 | 0.18 | 0.33 | 1.15 | |||||||||||||
1963 | 0.62 | 0.96 | 0.80 | 0.48 | 0.00 | 0.00 | 0.53 | 1.18 | 0.25 | 1.10 | 0.83 | 0.30 | 1.18 | |||||||||||||
1964 | 0.55 | 0.00 | 0.53 | 0.08 | 0.00 | 0.00 | 0.50 | 1.46 | 0.70 | 1.40 | 1.10 | 0.72 | 1.46 | |||||||||||||
1965 | 0.95 | 1.48 | 0.64 | 0.63 | 0.33 | 0.14 | 0.74 | 0.50 | 0.16 | 0.16 | 0.93 | 1.76 | 1.76 | |||||||||||||
1966 | 0.23 | 0.86 | 0.19 | 0.00 | 0.00 | 0.08 | 0.07 | 1.26 | 2.53 | 0.40 | 0.51 | 0.78 | 2.53 | |||||||||||||
1967 | 0.37 | 0.00 | 0.76 | 0.28 | 0.23 | 0.20 | 1.97 | 0.63 | 0.32 | 0.08 | 0.76 | 1.77 | 1.97 | |||||||||||||
1968 | 0.30 | 0.55 | 1.31 | 0.06 | 0.00 | 0.00 | 0.79 | 1.80 | 0.00 | 1.06 | 1.17 | 0.75 | 1.80 | |||||||||||||
1969 | 1.13 | 0.67 | 0.71 | 0.11 | 0.58 | 0.00 | 0.80 | 1.08 | 0.74 | 0.39 | 0.35 | 0.62 | 1.13 | |||||||||||||
1970 | 0.07 | 0.28 | 1.18 | 0.29 | 0.00 | 0.00 | 0.42 | 0.39 | 4.20 | 0.19 | 0.10 | 0.26 | 4.20 | |||||||||||||
1971 | 0.35 | 0.53 | 0.00 | 0.22 | 0.00 | 0.00 | 0.00 | 1.67 | 1.53 | 1.61 | 0.10 | 0.45 | 1.67 | |||||||||||||
1972 | 0.00 | 0.00 | ----- | z | 0.00 | 1.12 | 0.61 | 0.77 | 0.35 | 0.29 | 2.55 | 1.15 | 1.21 | ----- | z | |||||||||||
1973 | 0.12 | 0.87 | 0.70 | 0.02 | 0.20 | 0.27 | 0.88 | 0.14 | 0.00 | 0.00 | 0.47 | 0.02 | 0.88 | |||||||||||||
1974 | 0.80 | 0.07 | 0.88 | 0.00 | 0.00 | 0.00 | 1.13 | 0.78 | 0.17 | 1.73 | 0.06 | 0.57 | 1.73 | |||||||||||||
1975 | 0.11 | 0.83 | 0.74 | 0.47 | 0.00 | 0.00 | 1.33 | 0.18 | 0.61 | 0.22 | 0.00 | b | 0.53 | 1.33 | b | |||||||||||
1976 | 0.15 | 0.82 | 0.55 | 0.71 | 0.25 | 0.10 | 0.25 | 0.46 | 0.92 | 0.29 | 0.14 | ----- | z | ----- | z | |||||||||||
1977 | 0.30 | 0.02 | 0.24 | 0.13 | 0.38 | 0.25 | 0.74 | 2.22 | 0.88 | 0.23 | 0.57 | 0.30 | 2.22 | |||||||||||||
1978 | 0.62 | 1.18 | 1.78 | 0.54 | 0.76 | 0.22 | 0.77 | 1.02 | 0.15 | 0.73 | 1.10 | 3.20 | 3.20 | |||||||||||||
1979 | 1.45 | 0.20 | 1.22 | 0.04 | 1.38 | 0.00 | 0.30 | 1.20 | 0.00 | 0.18 | 0.35 | 0.41 | 1.45 | |||||||||||||
1980 | 0.87 | 1.20 | ----- | z | 0.31 | 0.02 | 0.00 | 1.50 | ----- | z | 0.08 | 0.00 | 0.00 | 0.14 | ----- | z | ||||||||||
1981 | 0.32 | 0.51 | 0.65 | 0.36 | 0.93 | 0.00 | 0.83 | 0.28 | 0.95 | 1.19 | 0.84 | 0.00 | 1.19 | |||||||||||||
1982 | 0.90 | 0.75 | 1.10 | 0.00 | 0.21 | 0.04 | 0.93 | 1.16 | 0.86 | 0.00 | 1.73 | ----- | z | ----- | z | |||||||||||
1983 | 1.13 | 0.63 | 2.03 | 0.20 | 0.07 | d | 0.00 | 0.23 | 1.42 | 1.35 | 0.90 | 0.52 | 0.61 | 2.03 | d | |||||||||||
1984 | 0.42 | 0.00 | 0.00 | 1.08 | 0.30 | 0.11 | 1.10 | 0.64 | 1.21 | 1.65 | 0.86 | 1.09 | 1.65 | |||||||||||||
1985 | 0.67 | 0.59 | 0.44 | 0.08 | 0.00 | 0.00 | 0.60 | h | 0.13 | 1.48 | a | 0.52 | 1.35 | u | 0.86 | ----- | z | |||||||||
1986 | 0.11 | 1.16 | 0.80 | 0.00 | 0.00 | 0.00 | 0.93 | 0.92 | 0.57 | 1.25 | 0.40 | 0.53 | 1.25 | |||||||||||||
1987 | 0.83 | 1.23 | 0.20 | 0.13 | 0.10 | 0.05 | 0.16 | 0.13 | 0.22 | 0.27 | 1.00 | 0.90 | 1.23 | |||||||||||||
1988 | 0.88 | 0.63 | 0.12 | 1.11 | 0.00 | 0.04 | 0.65 | 0.71 | 0.31 | a | 1.46 | 0.46 | 0.24 | 1.46 | a | |||||||||||
1989 | 0.73 | 0.14 | 1.78 | 0.00 | 0.18 | 0.00 | 0.85 | 0.37 | 0.28 | 0.35 | 0.17 | 0.74 | 1.78 | |||||||||||||
1990 | 0.57 | 0.55 | 0.56 | 0.55 | 0.31 | 0.40 | 0.75 | 1.16 | 0.93 | 0.00 | 0.85 | 0.89 | 1.16 | |||||||||||||
1991 | 0.72 | 0.69 | 1.41 | 0.00 | 0.00 | 0.00 | 0.13 | 0.24 | 0.85 | 0.45 | 0.73 | 0.73 | 1.41 | |||||||||||||
1992 | 1.09 | 0.42 | 1.08 | 0.63 | 0.57 | 0.20 | 2.45 | 1.20 | 0.52 | 0.42 | 0.24 | 1.42 | 2.45 | |||||||||||||
1993 | 2.75 | 0.87 | 1.59 | 0.00 | 0.25 | 0.00 | 0.40 | 1.44 | 0.00 | 0.22 | a | 1.33 | 0.10 | 2.75 | a | |||||||||||
1994 | 0.27 | 0.92 | 0.89 | 0.61 | 0.80 | w | 0.00 | f | 0.95 | 0.15 | 0.29 | 0.62 | 0.83 | b | 1.49 | g | ----- | z | ||||||||
1995 | 1.66 | 0.36 | a | 1.12 | e | 0.38 | q | 0.18 | 0.00 | 0.00 | 0.48 | 0.93 | 0.00 | 0.90 | 0.00 | 1.66 | w | |||||||||
1996 | ----- | z | 0.76 | 0.40 | ----- | z | 0.00 | a | 0.05 | 0.17 | ----- | z | 0.59 | d | 0.03 | 0.20 | a | ----- | z | ----- | z | |||||
1997 | 1.47 | c | 1.36 | 0.04 | 0.31 | 0.20 | ----- | z | 0.02 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |||||
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.98 | d | 0.21 | a | 0.82 | g | ----- | z | ----- | z |
1999 | 0.22 | 0.28 | 0.05 | ----- | z | 0.00 | ----- | z | 1.23 | j | 0.23 | d | 0.48 | 0.00 | 0.00 | 0.00 | ----- | z | ||||||||
2000 | 0.00 | ----- | z | 1.53 | i | 0.00 | 0.00 | 0.08 | 0.08 | f | 0.93 | 0.00 | 1.87 | i | 0.48 | j | 0.03 | ----- | z | |||||||
2001 | 0.77 | 0.35 | 0.84 | 1.18 | a | 0.08 | 0.05 | 1.98 | v | 1.00 | 0.00 | 0.05 | b | 0.09 | 0.81 | 1.98 | y | |||||||||
2002 | 0.18 | 0.00 | 0.25 | 0.16 | ----- | z | 0.00 | 0.22 | 0.53 | a | ----- | z | 0.58 | 0.00 | e | 0.38 | ----- | z | ||||||||
2003 | 0.06 | 1.22 | p | 1.22 | b | 0.29 | 0.00 | 0.00 | 0.14 | a | 0.60 | 0.08 | 0.10 | 0.83 | 0.27 | 1.22 | s | |||||||||
2004 | 0.36 | ----- | z | 0.15 | i | ----- | z | 0.10 | 0.00 | 0.70 | 0.66 | 0.99 | o | 0.52 | 0.85 | 1.61 | ----- | z | ||||||||
2005 | 1.00 | b | 2.70 | a | 0.11 | l | ----- | z | 0.00 | 0.05 | g | 0.71 | b | 0.21 | c | 0.00 | 0.17 | 0.00 | 0.00 | ----- | z | |||||
2006 | 0.00 | 0.00 | 2.12 | b | 0.10 | 0.02 | ----- | z | 1.62 | 1.30 | 0.35 | 0.60 | a | 0.04 | ----- | z | ----- | z | ||||||||
2007 | 1.11 | 0.40 | a | 0.51 | 0.35 | a | ----- | z | ----- | z | 0.63 | 0.55 | b | 0.16 | d | 0.08 | 0.03 | 2.60 | ----- | z | ||||||
2008 | 2.16 | 0.44 | 0.04 | 0.00 | 1.11 | k | 0.05 | 1.82 | 0.86 | 0.87 | 0.12 | 0.00 | 1.21 | h | 2.16 | s | ||||||||||
2009 | 0.30 | i | 0.81 | 0.00 | 0.55 | 0.47 | 0.58 | a | 0.18 | 0.55 | a | 0.23 | b | 0.00 | 0.00 | 1.05 | l | 1.05 | y | |||||||
2010 | 1.35 | g | 1.05 | i | 0.91 | c | 0.05 | 0.00 | 0.00 | 0.75 | c | 1.34 | c | 1.43 | 0.34 | c | 0.49 | g | 1.22 | b | ----- | z | ||||
2011 | 0.00 | l | 0.80 | i | 0.59 | k | 0.83 | m | 0.07 | p | 0.00 | l | 0.56 | p | 0.38 | l | 0.15 | n | 0.03 | p | 0.56 | p | 1.81 | o | ----- | z |
2012 | 0.02 | r | 0.12 | l | 1.26 | m | 0.42 | n | 0.00 | m | ----- | z | 1.00 | j | 0.99 | i | 1.20 | l | 0.22 | i | 0.55 | j | 0.89 | o | ----- | z |
2013 | 0.10 | l | 0.08 | l | 0.82 | j | 0.27 | i | 0.00 | j | 0.00 | j | 1.81 | l | 0.60 | j | 0.22 | n | 0.23 | i | 1.85 | n | 0.58 | n | ----- | z |
2014 | 0.00 | h | ----- | z | 1.30 | l | 0.06 | l | ----- | z | 0.00 | f | 1.02 | b | 1.32 | l | 2.16 | h | 1.56 | l | 0.00 | r | 0.69 | s | ----- | z |
2015 | 0.69 | l | 1.34 | g | 0.25 | q | 1.17 | l | ----- | z | ----- | z | 0.25 | q | 0.15 | j | 0.19 | l | 0.73 | h | ----- | z | 0.40 | g | ----- | z |
2016 | ----- | z | ----- | z | ----- | z | 0.44 | 0.12 | 0.65 | 0.35 | j | 0.23 | h | 0.09 | j | ----- | z | ----- | z | 0.85 | i | ----- | z | |||
2017 | 1.23 | e | 0.95 | g | 0.51 | 0.07 | c | 0.26 | 0.00 | 2.33 | g | 0.80 | g | 0.60 | j | 0.00 | a | 0.00 | n | 0.23 | l | ----- | z | |||
2018 | 0.35 | l | 0.24 | i | 0.11 | g | 0.00 | i | 0.02 | l | 0.75 | l | 1.23 | m | 1.02 | h | 0.27 | l | 1.45 | g | 0.42 | j | 0.12 | j | ----- | z |
2019 | 0.85 | l | 3.78 | j | 0.60 | l | 0.17 | i | 0.12 | i | 0.00 | j | 0.25 | i | 0.25 | h | 3.15 | h | 0.00 | l | 1.30 | a | 1.08 | k | ----- | z |
2020 | 0.07 | j | 2.15 | h | 0.70 | h | 0.12 | p | 0.02 | m | 0.00 | h | 0.16 | i | 0.45 | o | 0.10 | i | 0.00 | h | 0.15 | m | 0.26 | o | ----- | z |
2021 | 0.64 | m | 0.23 | h | 0.25 | j | 0.10 | l | 0.02 | l | 0.07 | h | 3.25 | h | 1.00 | h | 0.93 | j | 0.60 | k | 0.00 | k | 1.87 | j | ----- | z |
2022 | 0.70 | l | 0.75 | l | 0.50 | h | 0.00 | j | 0.00 | m | 0.76 | h | 1.41 | j | 0.90 | g | 0.64 | i | 0.89 | h | 0.26 | m | 1.45 | k | ----- | z |
2023 | 2.00 | i | 0.60 | h | 1.10 | q | 0.00 | l | 0.06 | f | 0.00 | e | 0.00 | h | 0.34 | e | 2.52 | d | 0.00 | g | 0.15 | h | 1.05 | g | ----- | z |
2024 | 0.80 | d | 1.70 | b | 0.25 | q | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.66 | 0.64 | 0.69 | 0.32 | 0.16 | 0.16 | 0.68 | 0.89 | 0.69 | 0.48 | 0.48 | 0.70 | 1.73 | |||||||||||||
S.D. | 0.50 | 0.47 | 0.53 | 0.41 | 0.26 | 0.35 | 0.50 | 0.69 | 0.77 | 0.63 | 0.48 | 0.62 | 0.70 | |||||||||||||
SKEW | 1.25 | 1.13 | 0.77 | 2.21 | 2.64 | 3.28 | 0.92 | 1.95 | 2.00 | 2.40 | 1.12 | 1.45 | 1.54 | |||||||||||||
MAX | 2.75 | 2.70 | 2.12 | 2.15 | 1.38 | 1.99 | 2.45 | 4.49 | 4.20 | 3.68 | 2.35 | 3.20 | 4.20 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.69 | |||||||||||||
YRS | 81 | 81 | 79 | 81 | 78 | 79 | 79 | 83 | 81 | 84 | 79 | 74 | 45 |