YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.68 | g | 1.25 | 1.39 | ----- | z | ----- | z | ----- | z | ----- | z | ||
1925 | ----- | z | ----- | z | 0.52 | q | ----- | z | 2.45 | 1.18 | 1.00 | 1.55 | 1.50 | ----- | z | ----- | z | ----- | z | ----- | z | |||||
1926 | ----- | z | ----- | z | ----- | z | ----- | z | 1.35 | r | 1.10 | 1.50 | 0.70 | 1.20 | 1.40 | ----- | z | ----- | z | ----- | z | |||||
1927 | ----- | z | ----- | z | ----- | z | 0.30 | 0.70 | 1.40 | y | 0.37 | y | 1.08 | 0.10 | 0.60 | 0.30 | 0.08 | ----- | z | |||||||
1928 | ----- | z | 0.00 | y | 0.00 | y | 0.96 | a | 0.10 | 1.82 | 1.55 | 2.33 | 0.57 | q | 0.80 | 0.32 | 0.00 | y | ----- | z | ||||||
1929 | 0.11 | 0.04 | 0.20 | 0.42 | 0.43 | 0.35 | 0.50 | 0.50 | 1.09 | 0.82 | 0.09 | 0.10 | 1.09 | |||||||||||||
1930 | 0.13 | 0.55 | 0.09 | 0.86 | 1.74 | 0.39 | 0.81 | 0.68 | 0.81 | 0.33 | 0.70 | 0.08 | 1.74 | |||||||||||||
1931 | 0.01 | 0.10 | 0.12 | 0.27 | 0.54 | 1.15 | 1.40 | 0.56 | 0.58 | 0.60 | 0.90 | 0.13 | 1.40 | |||||||||||||
1932 | 0.09 | 0.11 | 0.05 | 0.73 | 1.13 | 0.58 | 0.54 | 0.96 | 1.00 | 0.32 | 0.19 | 0.00 | 1.13 | |||||||||||||
1933 | 0.20 | 0.20 | 1.20 | 0.98 | 2.04 | 1.35 | 0.70 | 1.12 | 0.80 | 0.15 | 0.50 | 0.75 | 2.04 | |||||||||||||
1934 | ----- | z | 0.00 | y | 0.08 | 0.27 | 0.63 | 2.03 | 0.58 | 1.20 | 0.38 | 1.70 | 0.20 | 0.11 | ----- | z | ||||||||||
1935 | 1.00 | 0.00 | 0.49 | 0.62 | 0.54 | 2.30 | 1.36 | 2.08 | 0.43 | 1.07 | 0.40 | 0.45 | 2.30 | |||||||||||||
1936 | 0.55 | 0.40 | 0.50 | 0.35 | 0.62 | 0.70 | 0.65 | 0.70 | 0.70 | 0.12 | 0.18 | 0.17 | 0.70 | |||||||||||||
1937 | 0.27 | 0.25 | 0.10 | 1.69 | 1.26 | 0.44 | 0.89 | 1.93 | 0.37 | 0.02 | 0.27 | 0.19 | 1.93 | |||||||||||||
1938 | 0.31 | 0.48 | 0.22 | 0.96 | 1.58 | 0.47 | 1.21 | 0.55 | 0.25 | 0.26 | 0.52 | ----- | z | ----- | z | |||||||||||
1939 | 0.16 | 0.30 | a | 0.27 | 0.37 | 0.12 | 2.24 | 1.63 | 0.65 | 0.35 | 1.45 | 0.51 | 0.67 | 2.24 | a | |||||||||||
1940 | 0.06 | 0.17 | 1.09 | 0.86 | 0.77 | 0.90 | 1.62 | 0.82 | 0.18 | 0.97 | 0.78 | 0.15 | 1.62 | |||||||||||||
1941 | 0.37 | 0.13 | 0.31 | 0.53 | 1.80 | 1.61 | 1.07 | 2.54 | 2.00 | 0.84 | a | 0.05 | 0.11 | 2.54 | a | |||||||||||
1942 | 0.07 | 0.09 | 0.38 | y | 2.16 | 0.27 | 0.96 | 0.93 | 1.40 | 0.33 | 0.35 | 0.16 | 0.17 | 2.16 | y | |||||||||||
1943 | ----- | z | 0.88 | 0.83 | 0.56 | w | 0.83 | 3.38 | 0.60 | t | 1.65 | 0.19 | x | 0.82 | 0.32 | 0.08 | ----- | z | ||||||||
1944 | ----- | z | 0.01 | 0.17 | u | 0.25 | 0.96 | 1.31 | q | 1.02 | 2.42 | r | 0.44 | 0.15 | 0.43 | t | 0.02 | ----- | z | |||||||
1945 | 0.13 | 0.10 | 0.48 | 0.97 | 0.45 | 0.74 | 0.32 | 3.50 | 0.82 | 0.33 | 0.30 | 0.23 | 3.50 | |||||||||||||
1946 | 0.15 | 0.54 | 0.45 | 0.45 | 0.60 | 0.55 | 0.65 | 0.91 | 1.85 | 1.16 | 0.48 | 0.28 | 1.85 | |||||||||||||
1947 | 0.20 | 0.40 | 0.20 | 1.20 | 0.88 | 1.50 | 0.95 | 1.35 | 1.65 | 0.34 | 0.43 | 0.28 | 1.65 | |||||||||||||
1948 | 0.09 | 0.10 | 0.14 | 0.09 | y | ----- | z | 0.79 | w | 0.53 | 0.47 | 0.60 | 0.35 | 0.30 | 0.12 | h | ----- | z | ||||||||
1949 | 2.20 | 0.61 | 0.40 | 0.01 | 4.50 | 2.55 | a | 2.47 | 0.58 | 1.04 | 0.75 | 0.55 | 1.40 | 4.50 | a | |||||||||||
1950 | 0.80 | b | 0.10 | 0.80 | 0.44 | 1.40 | 4.10 | 0.73 | 0.60 | 1.88 | 0.90 | 0.22 | 0.18 | 4.10 | b | |||||||||||
1951 | 0.09 | 0.42 | 0.42 | e | 0.32 | 0.48 | 0.82 | 0.55 | 1.10 | 0.87 | 0.41 | 1.10 | b | 0.30 | c | 1.10 | j | |||||||||
1952 | 0.28 | b | 0.10 | a | 0.26 | c | 0.23 | 0.50 | 0.51 | 2.92 | 1.25 | a | 1.15 | 0.05 | 0.76 | 0.13 | 2.92 | g | ||||||||
1953 | 0.24 | 0.06 | b | 1.49 | 0.62 | 1.10 | 1.00 | a | 0.80 | 1.70 | 0.47 | 0.40 | 0.34 | a | 0.40 | 1.70 | d | |||||||||
1954 | 0.30 | 0.36 | 0.25 | 1.05 | 0.45 | 1.20 | 1.40 | 0.90 | 1.02 | 0.53 | 0.30 | a | 0.11 | 1.40 | a | |||||||||||
1955 | 0.15 | 0.29 | d | 0.35 | 0.85 | 0.58 | 1.43 | 1.73 | 0.25 | 0.53 | 0.17 | 0.36 | 0.62 | 1.73 | d | |||||||||||
1956 | 0.40 | 0.24 | 0.70 | 1.10 | 1.48 | 1.12 | 1.85 | 0.66 | 0.23 | 0.90 | 0.14 | a | 0.21 | 1.85 | a | |||||||||||
1957 | 0.33 | a | 0.22 | 0.18 | 2.70 | 0.62 | 1.94 | 1.60 | 0.95 | 2.40 | a | 0.42 | 0.48 | 0.04 | 2.70 | b | ||||||||||
1958 | 0.19 | 0.04 | 0.08 | 0.52 | 0.38 | 1.92 | 1.05 | 1.05 | 0.72 | 0.68 | 1.50 | 0.18 | 1.92 | |||||||||||||
1959 | 0.22 | 0.25 | 0.04 | 0.14 | 1.05 | a | 1.08 | 0.85 | 1.70 | 0.57 | 0.35 | 0.35 | 0.38 | 1.70 | a | |||||||||||
1960 | 0.36 | 0.04 | 0.06 | 0.67 | a | 0.88 | 1.13 | 1.40 | 1.95 | 1.25 | 1.05 | 0.44 | a | 0.11 | 1.95 | b | ||||||||||
1961 | 0.16 | ----- | z | 0.21 | 0.35 | 0.90 | 0.73 | 0.60 | 2.98 | 1.12 | 0.30 | 0.18 | 0.30 | ----- | z | |||||||||||
1962 | 0.38 | 0.44 | 0.22 | 0.55 | 1.20 | 2.80 | 0.75 | 1.10 | 1.92 | 0.37 | 0.24 | 0.18 | 2.80 | |||||||||||||
1963 | 0.05 | 0.22 | 0.34 | 0.62 | 3.90 | 0.93 | 0.83 | 1.04 | a | 1.65 | 0.13 | 0.16 | 0.27 | 3.90 | a | |||||||||||
1964 | 0.28 | 0.11 | 0.29 | 1.85 | 0.80 | 2.50 | 1.25 | 0.82 | 0.95 | 0.30 | 0.87 | 0.48 | 2.50 | |||||||||||||
1965 | 0.19 | 0.10 | 0.48 | 1.10 | 1.30 | 2.10 | 1.49 | 0.99 | 0.80 | 1.40 | 0.94 | 0.80 | 2.10 | |||||||||||||
1966 | 0.35 | 0.40 | 3.50 | a | 0.44 | 0.49 | 0.54 | 1.15 | 2.23 | 0.21 | 0.90 | 0.20 | 0.29 | 3.50 | a | |||||||||||
1967 | 0.54 | 0.12 | 0.70 | 0.58 | 0.50 | 1.50 | 0.65 | 0.80 | 0.26 | 0.75 | 0.22 | 0.41 | 1.50 | |||||||||||||
1968 | 0.34 | 0.17 | 0.72 | 0.55 | 1.10 | 1.81 | 0.87 | 1.70 | 0.63 | 0.48 | 0.14 | 0.46 | 1.81 | |||||||||||||
1969 | 0.39 | 0.27 | 0.36 | 0.80 | 1.21 | 0.60 | 1.12 | 2.42 | 1.01 | 0.86 | 0.36 | 0.24 | 2.42 | |||||||||||||
1970 | 0.16 | 0.16 | 0.91 | 1.22 | 0.97 | 1.60 | 0.65 | 0.60 | 1.65 | 0.64 | 0.21 | 0.32 | 1.65 | |||||||||||||
1971 | 0.46 | 0.44 | 0.36 | 0.43 | 0.90 | 0.60 | 0.60 | 0.97 | 2.45 | 2.64 | 0.48 | 0.12 | 2.64 | |||||||||||||
1972 | 0.37 | 0.42 | 0.36 | 0.63 | 0.68 | 0.35 | 2.01 | 1.15 | 0.92 | 1.37 | 0.14 | 0.28 | 2.01 | |||||||||||||
1973 | 0.04 | 0.28 | 0.34 | 0.21 | 0.98 | 1.35 | 0.60 | 0.73 | 4.00 | 0.45 | 0.39 | 0.14 | 4.00 | |||||||||||||
1974 | 0.18 | 0.27 | 0.27 | 1.20 | 0.86 | 0.59 | 1.03 | 1.16 | 0.08 | 0.75 | 1.31 | 0.29 | 1.31 | |||||||||||||
1975 | 0.29 | 0.17 | 0.24 | 1.32 | 0.55 | 2.20 | 0.95 | 1.54 | 0.82 | 0.70 | 0.17 | 0.12 | 2.20 | |||||||||||||
1976 | 0.34 | 0.18 | 0.21 | 0.24 | 0.20 | 0.92 | 0.46 | 0.70 | 0.25 | 0.09 | 0.09 | 0.13 | 0.92 | |||||||||||||
1977 | 0.21 | 0.42 | 0.24 | 0.24 | 0.94 | 0.71 | 0.73 | 1.15 | 1.35 | 0.68 | 0.82 | 0.22 | 1.35 | |||||||||||||
1978 | 0.09 | 0.18 | 0.09 | 0.29 | 0.65 | 1.45 | 0.84 | 1.68 | 0.78 | 0.15 | 0.27 | 0.16 | 1.68 | |||||||||||||
1979 | 0.34 | 0.42 | 0.91 | 0.54 | 0.50 | 1.94 | 1.45 | 0.36 | 0.23 | 1.23 | 0.32 | 0.14 | 1.94 | |||||||||||||
1980 | 0.27 | 0.31 | 0.20 | 0.03 | 0.22 | 0.60 | 0.50 | 1.08 | 1.21 | 0.45 | 0.30 | 0.16 | 1.21 | |||||||||||||
1981 | 0.08 | 0.14 | 0.52 | 0.41 | 0.32 | 0.90 | 2.00 | 1.51 | 0.72 | 1.23 | 0.37 | 0.37 | 2.00 | |||||||||||||
1982 | 0.41 | 0.12 | 0.40 | 0.33 | 0.64 | 0.26 | 0.91 | 1.15 | 0.58 | 1.07 | 0.28 | 0.12 | 1.15 | |||||||||||||
1983 | 0.43 | a | 0.21 | 0.45 | 0.15 | 1.16 | 1.87 | 0.65 | 0.70 | 1.11 | 0.47 | 0.35 | 0.15 | 1.87 | a | |||||||||||
1984 | 0.25 | 0.44 | 0.28 | 0.26 | 0.45 | 3.80 | 0.14 | 1.95 | 0.36 | 4.45 | 0.11 | 0.40 | 4.45 | |||||||||||||
1985 | 0.19 | 0.11 | 0.22 | 0.49 | 1.66 | 2.00 | 2.00 | 1.57 | 0.37 | 0.55 | 0.32 | 0.11 | 2.00 | |||||||||||||
1986 | 0.21 | 0.18 | 0.14 | 1.70 | 1.02 | 1.63 | 0.77 | 0.60 | 0.66 | 0.06 | 0.94 | 0.17 | 1.70 | |||||||||||||
1987 | 0.24 | 0.21 | 0.34 | 0.13 | 1.10 | 0.68 | 2.39 | 0.40 | 0.37 | 0.30 | 0.45 | 0.12 | 2.39 | |||||||||||||
1988 | 0.61 | 0.09 | 0.42 | 0.07 | 0.40 | 0.85 | 0.60 | 1.30 | 1.98 | 0.16 | 0.23 | 0.20 | 1.98 | |||||||||||||
1989 | 0.51 | 0.07 | 0.73 | 0.58 | 0.55 | 1.80 | 0.23 | 1.22 | 0.94 | 0.18 | 0.38 | 0.14 | 1.80 | |||||||||||||
1990 | 0.14 | 0.27 | 0.65 | 0.77 | 0.78 | 1.40 | 0.31 | 0.62 | 0.50 | 0.73 | 0.03 | 0.41 | 1.40 | |||||||||||||
1991 | 0.17 | 0.31 | 0.43 | 1.22 | 1.10 | 1.90 | 0.92 | 1.17 | 0.78 | 0.31 | 0.21 | 0.31 | 1.90 | |||||||||||||
1992 | 0.38 | 0.20 | 0.53 | 0.40 | 0.61 | 0.60 | 3.17 | 2.57 | 0.85 | 0.14 | 0.38 | 0.24 | 3.17 | |||||||||||||
1993 | 0.22 | 0.14 | 0.31 | 0.54 | 0.92 | 0.96 | 4.70 | 1.60 | 0.15 | 0.16 | 0.25 | 0.12 | 4.70 | |||||||||||||
1994 | 0.18 | 0.31 | 0.40 | 1.23 | 0.53 | 2.75 | 1.45 | 0.68 | 1.38 | 1.04 | 0.49 | 0.23 | 2.75 | |||||||||||||
1995 | 0.50 | 0.31 | 0.65 | 0.30 | 0.68 | 0.50 | 1.36 | 1.73 | 1.75 | 0.70 | 0.51 | 0.48 | 1.75 | |||||||||||||
1996 | 0.39 | 0.24 | 0.39 | 0.40 | 1.82 | 1.20 | 1.25 | 0.47 | 0.76 | 1.05 | 0.43 | 0.33 | 1.82 | |||||||||||||
1997 | 0.20 | 0.17 | 0.43 | 1.18 | 1.53 | 1.25 | 0.92 | 0.68 | 0.90 | 1.40 | 0.31 | 0.19 | 1.53 | |||||||||||||
1998 | 0.37 | 0.38 | 0.25 | 0.60 | 1.80 | 1.90 | 1.06 | 0.50 | 1.12 | 1.40 | 0.48 | 0.00 | c | 1.90 | c | |||||||||||
1999 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2000 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2001 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2002 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2004 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2005 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2006 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2007 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2008 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2009 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.75 | ----- | z | ----- | z | ----- | z | |
2010 | ----- | z | 0.07 | v | 0.33 | 1.17 | 0.86 | a | 2.24 | 1.56 | 1.45 | 1.95 | 2.02 | 0.57 | d | ----- | z | ----- | z | |||||||
2011 | ----- | z | ----- | z | ----- | z | 1.05 | x | 1.03 | r | 0.94 | u | 0.60 | s | 1.60 | w | 0.63 | y | 0.13 | y | ----- | z | ----- | z | ----- | z |
2012 | ----- | z | 0.26 | y | 0.63 | y | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.19 | ----- | z | ----- | z | ----- | z | ----- | z | |
2013 | ----- | z | ----- | z | ----- | z | ----- | z | 1.65 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | 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 | 0.48 | w | 0.58 | v | 1.09 | r | 0.61 | v | 0.62 | t | 1.46 | u | 1.08 | f | ----- | z | ----- | z | ----- | z |
2018 | ----- | z | ----- | z | ----- | z | ----- | z | 1.36 | 3.18 | f | 0.67 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||
2019 | ----- | z | ----- | z | ----- | z | ----- | z | 0.50 | r | ----- | z | 1.84 | w | 1.30 | s | 1.15 | t | 1.08 | v | ----- | z | ----- | z | ----- | z |
2020 | 0.22 | y | ----- | z | ----- | z | 0.31 | a | 0.37 | 1.50 | 2.53 | 1.65 | d | 0.45 | y | ----- | z | ----- | z | ----- | z | ----- | z | |||
2021 | ----- | z | ----- | z | ----- | z | 0.49 | 0.47 | 0.81 | 0.50 | ----- | z | ----- | z | 1.30 | g | 0.65 | 0.60 | ----- | z | ||||||
2022 | 0.50 | 0.34 | 0.21 | 2.21 | 1.12 | 0.61 | 0.00 | 1.10 | q | 0.80 | 0.08 | 1.30 | 1.60 | 2.21 | q | |||||||||||
2023 | 0.05 | 0.07 | 1.60 | a | ----- | z | ----- | z | ----- | z | 0.22 | g | 0.61 | ----- | z | ----- | z | 0.30 | ----- | z | ----- | z | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.30 | 0.24 | 0.46 | 0.70 | 0.97 | 1.36 | 1.13 | 1.20 | 0.94 | 0.72 | 0.42 | 0.28 | 2.15 | |||||||||||||
S.D. | 0.29 | 0.16 | 0.48 | 0.53 | 0.71 | 0.81 | 0.74 | 0.65 | 0.67 | 0.66 | 0.30 | 0.27 | 0.90 | |||||||||||||
SKEW | 4.27 | 1.13 | 3.99 | 1.49 | 2.59 | 1.12 | 1.99 | 1.14 | 1.61 | 2.83 | 1.61 | 2.88 | 1.26 | |||||||||||||
MAX | 2.20 | 0.88 | 3.50 | 2.70 | 4.50 | 4.10 | 4.70 | 3.50 | 4.00 | 4.45 | 1.50 | 1.60 | 4.70 | |||||||||||||
MIN | 0.01 | 0.00 | 0.04 | 0.01 | 0.10 | 0.26 | 0.00 | 0.25 | 0.08 | 0.02 | 0.03 | 0.00 | 0.70 | |||||||||||||
YRS | 69 | 70 | 71 | 74 | 78 | 75 | 77 | 77 | 76 | 76 | 75 | 71 | 61 |