YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.84 | 0.80 | 0.78 | u | 0.63 | u | 1.20 | ----- | z | |||
1934 | 0.63 | a | 0.18 | a | 0.87 | a | 0.85 | 0.56 | 0.72 | 0.05 | 0.59 | 0.29 | 1.50 | 0.81 | 0.46 | 1.50 | c | |||||||||
1935 | 2.35 | a | 0.05 | ----- | z | 0.44 | a | 0.19 | 0.43 | 0.35 | 0.44 | 0.17 | 0.63 | 0.43 | 0.19 | w | ----- | z | ||||||||
1936 | 0.57 | o | 0.63 | 0.43 | 0.77 | 0.40 | 0.33 | 0.16 | 0.27 | 0.48 | 0.21 | 0.02 | 0.52 | j | 0.77 | y | ||||||||||
1937 | 0.24 | 0.41 | ----- | z | 0.59 | 0.32 | 0.64 | 0.31 | 0.52 | 1.00 | 0.52 | 0.88 | 0.98 | a | ----- | z | ||||||||||
1938 | 0.50 | 0.41 | 0.57 | 0.60 | 0.58 | 0.41 | 0.50 | 0.29 | 0.67 | ----- | z | ----- | z | 0.82 | ----- | z | ||||||||||
1939 | 0.50 | v | 0.70 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.01 | o | 0.48 | ----- | z | |
1946 | 0.80 | c | 0.33 | 0.42 | 0.20 | 0.51 | w | 0.64 | 0.66 | 0.59 | 0.36 | 0.45 | 1.56 | 0.42 | g | ----- | z | |||||||||
1947 | 0.35 | 0.15 | t | 0.35 | a | 0.06 | 0.76 | 0.52 | 0.26 | 1.31 | 0.25 | 0.88 | 0.21 | 0.25 | 1.31 | u | ||||||||||
1948 | 0.48 | 0.52 | 0.35 | 0.41 | 0.69 | 0.82 | 1.33 | 0.32 | 0.05 | 0.15 | 0.43 | 0.47 | 1.33 | |||||||||||||
1949 | 0.23 | 0.75 | 0.27 | a | 0.31 | 0.46 | 0.57 | 0.76 | a | 0.28 | 0.39 | 0.69 | 1.19 | 0.52 | 1.19 | b | ||||||||||
1950 | 0.90 | 0.40 | 0.81 | 0.22 | 0.25 | 0.54 | 0.22 | 0.25 | 0.46 | 0.84 | 0.34 | 0.51 | 0.90 | |||||||||||||
1951 | 0.81 | 0.68 | a | 0.58 | 0.47 | 0.64 | 1.75 | 0.40 | a | 1.23 | 0.70 | 0.85 | 0.55 | 0.98 | 1.75 | b | ||||||||||
1952 | 0.41 | 0.43 | 0.32 | 0.23 | 0.36 | 0.80 | 0.52 | 0.43 | 0.17 | 0.06 | 0.19 | 0.30 | 0.80 | |||||||||||||
1953 | 1.53 | 0.34 | 0.42 | 0.51 | 0.62 | 1.10 | 0.06 | 0.48 | 0.40 | 0.20 | 0.65 | 0.64 | 1.53 | |||||||||||||
1954 | 1.28 | 0.86 | 1.50 | 0.60 | 0.31 | 0.21 | 1.00 | 1.34 | 0.19 | 0.47 | 0.48 | 0.30 | 1.50 | |||||||||||||
1955 | 0.31 | 0.51 | 0.44 | 0.34 | 0.51 | 0.70 | 0.59 | 0.00 | 0.72 | 0.72 | 0.86 | 1.11 | 1.11 | |||||||||||||
1956 | 0.55 | 0.24 | 0.42 | 0.57 | 0.38 | 0.99 | 0.70 | 0.77 | 0.46 | 0.55 | 0.30 | 0.51 | 0.99 | |||||||||||||
1957 | 0.31 | 0.82 | 0.26 | 0.42 | 0.64 | 1.20 | 0.54 | 0.29 | 0.21 | 0.66 | 0.21 | 0.39 | 1.20 | |||||||||||||
1958 | 0.45 | 0.89 | 0.33 | 0.53 | 1.03 | 0.71 | 0.19 | 0.42 | 0.49 | 0.65 | 1.34 | 0.41 | 1.34 | |||||||||||||
1959 | 0.97 | 0.34 | 0.16 | 0.47 | 1.73 | 0.24 | 0.10 | 0.21 | 1.03 | 0.72 | 0.80 | 0.59 | 1.73 | |||||||||||||
1960 | 0.30 | 0.22 | 0.27 | 0.36 | 0.27 | 0.23 | 0.10 | 0.86 | 0.30 | 0.23 | 0.95 | 0.32 | 0.95 | |||||||||||||
1961 | 0.32 | 1.10 | 0.12 | 0.40 | 0.98 | 0.17 | 0.42 | 0.31 | 0.52 | 0.76 | 0.53 | 0.97 | 1.10 | |||||||||||||
1962 | 0.18 | 0.47 | 0.42 | 0.40 | 0.32 | 0.33 | 0.58 | 0.53 | 0.28 | 0.63 | 0.52 | 0.49 | 0.63 | |||||||||||||
1963 | 0.34 | 1.03 | 0.56 | 0.27 | 0.30 | 1.11 | 0.25 | 0.87 | 0.51 | 0.33 | 0.46 | 0.66 | 1.11 | |||||||||||||
1964 | 0.72 | 0.27 | 0.82 | 0.22 | 0.86 | 1.96 | 0.20 | 0.27 | 0.42 | 0.59 | 1.05 | 1.27 | 1.96 | |||||||||||||
1965 | 0.51 | 0.84 | 0.24 | ----- | z | 0.52 | 0.65 | 0.22 | 0.29 | 0.61 | 0.17 | 0.54 | 0.40 | ----- | z | |||||||||||
1966 | 0.70 | 0.26 | 0.34 | 0.53 | 0.47 | 2.43 | 0.17 | a | 0.36 | 0.48 | 0.58 | 0.80 | 0.37 | 2.43 | a | |||||||||||
1967 | 0.43 | 0.38 | 0.47 | 0.16 | 0.30 | 0.31 | 0.00 | 0.00 | 0.09 | 1.38 | ----- | z | 0.50 | ----- | z | |||||||||||
1968 | ----- | z | ----- | z | ----- | z | ----- | z | 1.27 | 0.40 | 0.28 | 0.64 | 0.60 | 0.67 | 0.47 | 0.52 | ----- | z | ||||||||
1969 | 0.88 | 0.16 | 0.22 | 0.33 | b | 0.64 | 0.76 | 0.09 | 0.00 | 0.30 | 0.36 | a | 0.13 | s | 0.45 | c | 0.88 | y | ||||||||
1970 | 0.74 | 0.52 | 0.46 | c | 0.24 | e | 0.65 | i | 0.53 | 0.29 | 0.28 | 0.40 | 0.38 | 0.80 | 0.90 | 0.90 | q | |||||||||
1971 | 0.90 | 0.40 | 0.73 | 0.30 | 0.80 | 1.60 | 0.80 | 0.70 | 0.26 | 0.60 | 0.63 | 0.81 | 1.60 | |||||||||||||
1972 | 1.00 | 0.95 | 0.88 | 0.30 | 0.47 | 0.26 | 0.54 | 0.78 | 0.35 | 0.45 | 0.15 | 0.78 | 1.00 | |||||||||||||
1973 | 0.52 | 0.75 | 0.40 | 0.25 | 0.45 | 0.91 | 0.18 | 0.61 | 0.32 | 0.38 | 1.10 | 0.68 | 1.10 | |||||||||||||
1974 | 1.18 | 0.50 | 0.58 | 1.10 | 0.31 | 0.43 | ----- | z | 0.41 | 0.67 | ----- | z | 0.74 | 0.68 | ----- | z | ||||||||||
1975 | 0.53 | 0.84 | 0.31 | 0.21 | 0.75 | 0.49 | 0.86 | 0.81 | 0.23 | 1.04 | 0.36 | 0.58 | 1.04 | |||||||||||||
1976 | 0.49 | 0.79 | 0.48 | 0.18 | 0.37 | 0.55 | 0.53 | 0.48 | 0.37 | 0.21 | 0.48 | 0.26 | 0.79 | |||||||||||||
1977 | 0.52 | 0.23 | 0.36 | 0.21 | 0.43 | 0.41 | 0.68 | 0.55 | 0.41 | 0.20 | 0.86 | 0.62 | 0.86 | |||||||||||||
1978 | 0.28 | 0.44 | 0.12 | 0.50 | 0.60 | 0.35 | 0.65 | 0.91 | 0.22 | 0.18 | 1.07 | 0.28 | 1.07 | |||||||||||||
1979 | 0.41 | 0.72 | 0.28 | 0.66 | 0.61 | 0.46 | 0.30 | 0.66 | 0.16 | 0.36 | 0.16 | 0.98 | 0.98 | |||||||||||||
1980 | ----- | z | 0.22 | 0.33 | 0.31 | 1.37 | 1.50 | 0.36 | 0.43 | 0.38 | 0.13 | 0.63 | 1.11 | ----- | z | |||||||||||
1981 | 0.67 | 0.27 | 0.36 | 0.34 | 0.65 | 0.94 | 0.65 | 0.43 | 0.29 | 0.22 | 0.66 | 0.72 | 0.94 | |||||||||||||
1982 | 0.78 | 1.15 | 0.61 | 0.41 | 0.16 | 1.00 | 0.34 | 0.19 | 0.48 | a | 0.37 | 0.86 | 0.57 | 1.15 | a | |||||||||||
1983 | 0.62 | 0.28 | 0.56 | 0.31 | 0.16 | 0.56 | 0.70 | 0.33 | 0.30 | 0.22 | 0.64 | 0.47 | 0.70 | |||||||||||||
1984 | 0.21 | 0.11 | 0.33 | 0.26 | 0.46 | 0.81 | 0.39 | 0.46 | a | 0.47 | 0.82 | 0.54 | 0.38 | 0.82 | a | |||||||||||
1985 | 0.03 | 0.42 | 0.43 | 0.18 | 0.36 | 0.49 | 0.31 | 0.50 | 0.58 | 0.46 | 0.52 | 0.34 | 0.58 | |||||||||||||
1986 | 0.37 | 0.70 | 0.39 | 0.22 | 0.64 | 0.48 | 0.32 | 0.27 | 0.38 | 0.25 | 0.77 | 0.11 | 0.77 | |||||||||||||
1987 | 0.36 | 0.49 | 0.50 | 0.36 | 0.24 | 0.61 | 0.78 | 0.78 | 0.17 | 0.05 | 0.21 | 1.10 | 1.10 | |||||||||||||
1988 | 0.71 | 0.30 | 0.42 | 0.34 | 1.32 | 0.47 | 0.36 | 0.19 | 0.44 | 0.61 | 0.75 | 0.54 | s | 1.32 | s | |||||||||||
1989 | 0.26 | 0.13 | 0.51 | 0.35 | 0.59 | 0.68 | 0.59 | 0.66 | 0.49 | 0.30 | 1.05 | a | 0.41 | 1.05 | a | |||||||||||
1990 | 0.89 | 0.43 | 0.23 | 0.35 | 0.40 | 0.44 | 0.82 | 0.42 | 0.05 | 0.32 | 1.30 | 0.62 | 1.30 | |||||||||||||
1991 | 0.69 | 0.68 | 0.28 | 0.52 | 0.29 | 0.66 | ----- | z | ----- | z | 0.23 | 0.28 | 0.37 | b | 0.27 | ----- | z | |||||||||
1992 | 0.38 | 0.40 | 0.05 | a | 0.37 | 0.43 | 0.27 | ----- | z | ----- | z | 0.26 | 0.65 | 0.34 | c | 0.73 | ----- | z | ||||||||
1993 | 0.30 | 0.53 | 0.33 | a | 0.67 | 0.33 | 0.87 | 0.63 | 0.33 | 0.93 | 0.53 | 0.62 | 0.24 | 0.93 | a | |||||||||||
1994 | 0.20 | 0.79 | 0.34 | ----- | z | 0.50 | 0.35 | 0.15 | 0.75 | 0.00 | c | 0.80 | 0.80 | 0.30 | ----- | z | ||||||||||
1995 | 0.61 | a | 0.82 | 0.55 | 0.57 | 0.16 | 1.63 | 0.57 | 0.32 | 0.41 | 0.85 | 0.75 | 0.83 | 1.63 | a | |||||||||||
1996 | 0.55 | 0.92 | 0.40 | a | 0.93 | 0.55 | a | 0.49 | 0.45 | 0.37 | 0.62 | 0.48 | 0.82 | 0.96 | 0.96 | b | ||||||||||
1997 | 0.62 | 0.22 | 0.37 | 0.24 | 0.35 | 0.50 | 0.23 | 0.34 | 0.31 | 0.66 | 0.49 | 0.43 | a | 0.66 | a | |||||||||||
1998 | 0.37 | 0.04 | a | 0.40 | 0.54 | 0.64 | 0.99 | 0.83 | 1.26 | 0.33 | 0.47 | 0.64 | 0.62 | a | 1.26 | b | ||||||||||
1999 | 0.90 | 0.31 | 0.09 | 0.00 | a | 0.40 | 0.95 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |||||
2000 | 6.60 | 0.60 | 0.29 | a | 0.72 | 0.21 | 0.28 | 0.27 | f | 0.10 | d | 0.30 | b | 0.20 | b | 0.10 | d | 0.60 | 6.60 | s | ||||||
2001 | 0.20 | 0.10 | u | ----- | 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 | ----- | z | ----- | z | ----- | z | ----- | z |
2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2011 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2012 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2013 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | 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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2018 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2019 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2020 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2021 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2022 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2023 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2024 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.70 | 0.51 | 0.43 | 0.41 | 0.54 | 0.71 | 0.44 | 0.51 | 0.40 | 0.51 | 0.64 | 0.60 | 1.15 | |||||||||||||
S.D. | 0.87 | 0.28 | 0.23 | 0.21 | 0.31 | 0.45 | 0.27 | 0.31 | 0.22 | 0.30 | 0.33 | 0.28 | 0.38 | |||||||||||||
SKEW | 5.56 | 0.39 | 1.99 | 0.96 | 1.66 | 1.67 | 0.70 | 0.92 | 0.83 | 0.98 | 0.45 | 0.61 | 1.12 | |||||||||||||
MAX | 6.60 | 1.15 | 1.50 | 1.10 | 1.73 | 2.43 | 1.33 | 1.34 | 1.03 | 1.50 | 1.56 | 1.27 | 2.43 | |||||||||||||
MIN | 0.03 | 0.04 | 0.05 | 0.00 | 0.16 | 0.17 | 0.00 | 0.00 | 0.00 | 0.05 | 0.02 | 0.11 | 0.58 | |||||||||||||
YRS | 58 | 59 | 57 | 57 | 58 | 60 | 55 | 58 | 60 | 57 | 56 | 57 | 41 |