YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1934 | 0.00 | 0.14 | 0.00 | 0.00 | 0.00 | 0.02 | 0.21 | 0.52 | 0.00 | 0.15 | 0.57 | 0.84 | 0.84 | |||||||||||||
1935 | 0.44 | 1.00 | 0.47 | 0.00 | 0.11 | 0.00 | 0.05 | 0.89 | 0.16 | 0.00 | 0.18 | 0.19 | 1.00 | |||||||||||||
1936 | 0.14 | 0.20 | 0.03 | 0.00 | 0.00 | 0.00 | 0.35 | 0.49 | 0.16 | 0.37 | 0.18 | 1.41 | 1.41 | |||||||||||||
1937 | 0.42 | 0.25 | 1.60 | 0.06 | 0.00 | 0.89 | 0.34 | 0.02 | 0.14 | 0.00 | 0.00 | 0.29 | 1.60 | |||||||||||||
1938 | 0.05 | 1.12 | 0.52 | 0.00 | 0.09 | 0.09 | 0.41 | 1.11 | 0.27 | 0.00 | ----- | z | 1.03 | ----- | z | |||||||||||
1939 | 0.37 | 0.27 | 0.16 | 0.09 | 0.00 | 0.00 | 0.29 | 0.15 | 1.99 | 0.00 | 0.18 | 0.16 | 1.99 | |||||||||||||
1940 | 0.23 | 0.80 | ----- | z | 0.40 | 0.00 | 0.00 | 0.00 | ----- | z | 0.50 | 0.17 | 0.35 | 1.14 | ----- | z | ||||||||||
1941 | 0.51 | 0.36 | 0.94 | 0.97 | 0.09 | 0.00 | 0.33 | 0.14 | 0.07 | 0.30 | 0.25 | 0.25 | 0.97 | |||||||||||||
1942 | 0.12 | 0.00 | 0.20 | 0.20 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.19 | 0.00 | 0.12 | 0.33 | |||||||||||||
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 | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.88 | b | 0.08 | 1.30 | 0.17 | 0.00 | 0.50 | ----- | z | |||||
1949 | 1.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.05 | 0.25 | 0.17 | 0.12 | 0.60 | 1.00 | |||||||||||||
1950 | 0.02 | 0.09 | 0.19 | 0.00 | 0.00 | 0.00 | 0.25 | 0.14 | 0.47 | 0.00 | 0.00 | 0.00 | 0.47 | |||||||||||||
1951 | 0.71 | 0.03 | 0.00 | 0.13 | 0.63 | 0.00 | 0.22 | 3.05 | 0.05 | 0.45 | 0.44 | 0.33 | 3.05 | |||||||||||||
1952 | 0.22 | 0.00 | 0.54 | 0.89 | 0.00 | 0.16 | 0.06 | 0.04 | 0.07 | 0.00 | 0.61 | 0.65 | a | 0.89 | a | |||||||||||
1953 | 0.06 | a | 0.30 | 0.04 | 0.02 | 0.00 | 0.00 | 0.98 | 0.46 | 0.00 | 0.00 | 0.05 | 0.00 | 0.98 | a | |||||||||||
1954 | 0.62 | 0.04 | 0.97 | 0.00 | 0.00 | 0.00 | 0.14 | 0.05 | 0.02 | 0.08 | 0.02 | 0.05 | 0.97 | |||||||||||||
1955 | 0.59 | 0.03 | 0.00 | 0.41 | 0.00 | 0.00 | 0.11 | 0.50 | 0.00 | 0.00 | 0.04 | 0.09 | 0.59 | |||||||||||||
1956 | 0.00 | 0.10 | 0.00 | 0.01 | 0.00 | 0.00 | 0.03 | 0.00 | 0.05 | 0.03 | 0.00 | 0.00 | 0.10 | |||||||||||||
1957 | 0.65 | 0.17 | 0.03 | 0.19 | 0.00 | 0.14 | 0.44 | 0.27 | 0.02 | 0.53 | 0.09 | 0.28 | 0.65 | |||||||||||||
1958 | 0.13 | 0.84 | 0.54 | 0.40 | 0.16 | b | 0.00 | b | 0.06 | 0.23 | 0.21 | 0.93 | 0.38 | 0.00 | 0.93 | d | ||||||||||
1959 | 0.22 | 0.40 | 0.00 | 0.00 | d | 0.00 | 0.00 | 0.07 | 0.60 | 0.00 | c | 0.19 | 0.15 | 1.15 | 1.15 | g | ||||||||||
1960 | 0.69 | 0.37 | b | 0.03 | 0.00 | 0.00 | i | 0.00 | 0.43 | 0.00 | 0.72 | 0.00 | 0.30 | 0.00 | 0.72 | k | ||||||||||
1961 | 0.29 | 0.00 | 0.12 | 0.01 | 0.00 | 0.00 | 0.22 | 0.63 | 0.37 | 0.00 | 0.02 | 0.47 | 0.63 | |||||||||||||
1962 | 0.48 | 0.29 | 0.00 | 0.00 | 0.02 | 0.12 | 0.02 | 0.00 | 0.61 | 0.10 | 0.02 | 0.59 | 0.61 | |||||||||||||
1963 | 0.07 | 0.40 | 0.24 | 0.08 | 0.00 | 0.00 | 0.00 | 0.48 | 0.80 | 0.69 | 0.27 | 0.00 | 0.80 | |||||||||||||
1964 | 0.04 | 0.00 | 0.20 | 0.08 | 0.00 | 0.00 | 0.12 | 0.20 | 0.00 | 0.00 | 0.53 | 0.10 | 0.53 | |||||||||||||
1965 | 0.24 | 1.20 | 0.33 | 0.92 | 0.09 | 0.00 | 0.09 | 0.15 | 0.24 | 0.00 | 1.60 | 1.48 | 1.60 | |||||||||||||
1966 | 0.20 | 0.39 | 0.08 | 0.00 | 0.00 | 0.00 | 0.13 | 0.02 | 0.28 | 0.15 | 0.95 | 0.04 | 0.95 | |||||||||||||
1967 | 0.47 | 0.00 | 0.19 | 0.25 | 0.00 | 0.00 | 0.03 | 0.35 | 0.17 | 0.05 | 0.41 | 0.85 | 0.85 | |||||||||||||
1968 | 0.01 | 0.28 | 0.31 | 0.03 | 0.00 | 0.00 | 0.41 | 0.09 | 0.00 | 0.63 | 0.07 | 0.12 | 0.63 | |||||||||||||
1969 | 0.44 | 0.10 | 0.13 | 0.00 | 0.12 | 0.00 | 0.30 | 0.04 | 0.45 | 0.36 | 0.50 | 0.00 | 0.50 | |||||||||||||
1970 | 0.10 | 0.26 | 1.29 | 0.06 | 0.00 | 0.00 | 0.03 | 0.11 | 0.07 | 0.05 | 0.14 | 0.14 | 1.29 | |||||||||||||
1971 | 0.00 | 0.07 | 0.00 | 0.00 | 0.34 | 0.00 | 0.00 | 0.55 | 0.41 | 0.08 | 0.03 | 0.12 | 0.55 | |||||||||||||
1972 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.65 | 0.00 | 1.00 | 1.05 | 0.92 | 0.82 | 0.27 | 1.05 | |||||||||||||
1973 | 0.17 | 0.44 | 1.01 | 0.00 | 0.13 | 0.00 | 0.00 | 0.07 | 0.00 | 0.00 | 0.42 | 0.00 | 1.01 | |||||||||||||
1974 | 0.48 | 0.00 | 0.30 | 0.00 | 0.00 | 0.00 | 0.04 | 0.04 | 0.00 | 0.24 | 0.08 | 1.10 | 1.10 | |||||||||||||
1975 | 0.03 | 0.03 | 0.32 | 0.14 | 0.00 | 0.00 | 0.00 | 0.00 | 0.82 | 0.14 | 0.22 | 0.04 | 0.82 | |||||||||||||
1976 | 0.00 | 1.46 | 0.05 | 0.38 | 0.24 | 0.00 | 0.20 | 0.00 | 0.83 | 0.06 | 0.11 | 0.07 | 1.46 | |||||||||||||
1977 | 0.18 | 0.00 | 0.07 | 0.06 | 0.11 | 0.04 | 0.01 | 1.45 | 0.00 | 0.39 | 0.03 | 0.17 | 1.45 | |||||||||||||
1978 | 0.80 | 1.35 | 0.28 | 0.48 | 0.08 | 0.00 | 0.05 | 0.01 | 0.00 | 2.34 | 0.71 | 0.97 | 2.34 | |||||||||||||
1979 | 0.79 | 0.15 | 0.89 | 0.00 | 0.14 | 0.00 | 0.75 | 0.65 | 0.00 | 0.11 | 0.00 | 0.06 | 0.89 | |||||||||||||
1980 | 1.90 | 0.54 | a | 0.45 | 0.03 | 0.21 | 0.02 | 1.80 | 0.00 | 0.16 | 0.25 | 0.00 | 0.05 | 1.90 | a | |||||||||||
1981 | 0.05 | 0.26 | 0.61 | 0.04 | 0.24 | 0.00 | 0.65 | 0.34 | 0.56 | 1.49 | 0.59 | 0.00 | 1.49 | |||||||||||||
1982 | 0.18 | a | 1.16 | g | 0.36 | 0.00 | ----- | z | 0.00 | 0.52 | 0.58 | 0.00 | 0.00 | 0.26 | 0.76 | y | ----- | z | ||||||||
1983 | 0.16 | 0.33 | 1.02 | 0.00 | 0.00 | 0.00 | 0.06 | 1.37 | 0.86 | 0.43 | 0.09 | 0.33 | 1.37 | |||||||||||||
1984 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.53 | 0.55 | 0.49 | 0.00 | 0.24 | 0.98 | 0.98 | |||||||||||||
1985 | 0.65 | 0.39 | 0.27 | 0.14 | 0.00 | 0.00 | 0.10 | 0.00 | 0.50 | 0.70 | 1.15 | 0.00 | 1.15 | |||||||||||||
1986 | 0.19 | 0.59 | 0.31 | 0.08 | 0.00 | 0.00 | 0.95 | 0.72 | 1.28 | 0.26 | 0.53 | 0.60 | 1.28 | |||||||||||||
1987 | 0.11 | 0.05 | 0.09 | 0.13 | 0.01 | 0.00 | 0.00 | 0.03 | 0.60 | 0.23 | 0.75 | 0.27 | 0.75 | |||||||||||||
1988 | 1.02 | 0.94 | 0.03 | 1.01 | 0.00 | 0.00 | 0.25 | 1.34 | 0.00 | 0.00 | 0.10 | 0.05 | 1.34 | |||||||||||||
1989 | 0.89 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.09 | 0.06 | 0.05 | 0.05 | 0.00 | 0.09 | 0.89 | |||||||||||||
1990 | 0.79 | 0.15 | 0.17 | 0.32 | 0.20 | 0.02 | 0.40 | 0.27 | 0.15 | 0.00 | 0.10 | 0.00 | 0.79 | |||||||||||||
1991 | 0.58 | 0.55 | 0.91 | 0.00 | 0.02 | 0.05 | 0.00 | 0.10 | 0.82 | 0.22 | 0.18 | 0.30 | 0.91 | |||||||||||||
1992 | 0.61 | 0.81 | 0.99 | 0.25 | 0.51 | 0.00 | 0.66 | 1.47 | 0.00 | 0.55 | 0.00 | 0.90 | 1.47 | |||||||||||||
1993 | 1.18 | 0.95 | 0.78 | 0.00 | 0.00 | 0.00 | 0.00 | 0.30 | 0.00 | 0.14 | 0.48 | 0.03 | 1.18 | |||||||||||||
1994 | 0.08 | 0.22 | 0.53 | 0.12 | 0.26 | 0.00 | 0.08 | 0.00 | 0.00 | 0.00 | 0.43 | 0.81 | 0.81 | |||||||||||||
1995 | 2.35 | 1.14 | 0.53 | 0.24 | 0.00 | 0.00 | 0.00 | 0.68 | 0.00 | 0.00 | 0.01 | 0.05 | 2.35 | |||||||||||||
1996 | 0.05 | 0.36 | 0.19 | 0.00 | 0.13 | 0.00 | 0.03 | 0.08 | 0.03 | 0.05 | 0.42 | 0.22 | 0.42 | |||||||||||||
1997 | 1.72 | 0.28 | 0.00 | 0.16 | 0.00 | 0.00 | 0.07 | 0.33 | 2.02 | 0.03 | 0.07 | 0.96 | 2.02 | |||||||||||||
1998 | 0.33 | 1.10 | 0.75 | 0.12 | 0.03 | 0.00 | 1.64 | 0.13 | 1.00 | ----- | z | 0.40 | 0.15 | ----- | z | |||||||||||
1999 | ----- | z | ----- | z | 0.00 | 0.50 | 0.00 | 0.12 | 1.05 | 0.04 | 0.06 | 0.00 | 0.00 | 0.00 | ----- | z | ||||||||||
2000 | 0.00 | 0.70 | 0.35 | 0.00 | 0.00 | 0.00 | ----- | z | 0.14 | 0.00 | 0.22 | 0.00 | 0.00 | ----- | z | |||||||||||
2001 | 0.68 | 0.22 | 0.97 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.13 | 0.03 | 0.06 | 1.13 | |||||||||||||
2002 | 0.00 | 0.00 | 0.05 | 0.00 | 0.00 | ----- | z | 0.08 | 0.00 | 0.94 | 0.12 | ----- | z | 0.24 | ----- | z | ||||||||||
2003 | 0.23 | 1.26 | 0.55 | 0.00 | 0.00 | 0.00 | 0.14 | 0.18 | 0.54 | 0.00 | 0.14 | 0.60 | 1.26 | |||||||||||||
2004 | 0.10 | 0.45 | 0.00 | 0.51 | 0.00 | 0.00 | 0.04 | 0.14 | 1.60 | 1.40 | 1.77 | 0.55 | 1.77 | |||||||||||||
2005 | 0.83 | 1.75 | 0.26 | 0.17 | 0.00 | 0.00 | 0.51 | 0.88 | 0.00 | 1.11 | 0.10 | 0.00 | 1.75 | |||||||||||||
2006 | 0.00 | 0.12 | 0.30 | 0.00 | 0.00 | 0.00 | 0.08 | 0.75 | 1.67 | 0.34 | 0.00 | 0.00 | 1.67 | |||||||||||||
2007 | 0.07 | 0.00 | 0.54 | 0.00 | ----- | z | 0.00 | 0.30 | ----- | z | ----- | z | 0.00 | 0.15 | 0.00 | ----- | z | |||||||||
2008 | 0.50 | 0.12 | 0.00 | ----- | z | ----- | z | 0.00 | 0.60 | 0.92 | 0.20 | 0.00 | 0.20 | 0.85 | ----- | z | ||||||||||
2009 | 0.01 | 1.00 | a | 0.00 | 0.00 | 0.00 | 0.06 | 0.50 | 0.40 | 0.01 | 0.00 | 0.00 | 0.85 | 1.00 | a | |||||||||||
2010 | 1.22 | 0.30 | 0.80 | 0.00 | 0.00 | 0.02 | 0.00 | 0.18 | 0.00 | 0.20 | 0.00 | 1.17 | 1.22 | |||||||||||||
2011 | 0.02 | 0.92 | 0.17 | 0.15 | 0.00 | 0.00 | 0.67 | 0.00 | 0.42 | 0.17 | 0.34 | a | 0.39 | e | 0.92 | f | ||||||||||
2012 | 0.00 | 0.02 | 0.07 | 0.25 | 0.00 | 0.00 | 0.54 | 0.25 | 0.03 | 0.18 | 0.00 | e | 1.24 | c | 1.24 | h | ||||||||||
2013 | 0.55 | c | 0.13 | 0.15 | e | 0.00 | 0.00 | 0.00 | j | 0.17 | 0.78 | b | 0.86 | 0.00 | a | 0.45 | 0.03 | 0.86 | u | |||||||
2014 | 0.00 | 0.00 | 0.40 | b | 0.03 | a | 0.03 | 0.00 | g | 0.60 | 0.98 | 0.51 | 0.15 | 0.00 | j | 1.00 | 1.00 | t | ||||||||
2015 | 0.60 | 0.15 | 0.94 | 0.13 | a | 0.03 | 0.06 | 0.60 | j | 0.10 | 0.00 | 0.18 | a | 0.10 | f | 0.20 | a | 0.94 | s | |||||||
2016 | 0.60 | 0.18 | 0.04 | b | 0.14 | p | 0.00 | 0.00 | 0.32 | 0.23 | a | 0.10 | f | 0.00 | 0.10 | a | 0.05 | n | ----- | z | ||||||
2017 | 0.70 | 1.10 | c | 0.02 | a | 0.00 | m | 0.34 | h | 0.00 | c | 0.01 | 0.03 | e | 0.20 | e | 0.00 | 0.00 | 0.00 | k | ----- | z | ||||
2018 | 0.55 | a | 0.05 | 0.10 | d | 0.00 | c | 0.00 | f | 0.00 | 0.30 | e | 0.00 | v | 0.00 | d | 0.62 | b | 0.00 | c | 0.41 | o | ----- | z | ||
2019 | 1.15 | 0.90 | b | 0.75 | c | 0.06 | f | 0.10 | a | 0.00 | a | 0.00 | b | 0.00 | d | 0.98 | 0.00 | a | 0.76 | j | 0.08 | n | ----- | z | ||
2020 | 0.05 | b | 0.50 | 0.95 | 0.20 | 0.00 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 | 0.95 | b | |||||||||||
2021 | 0.73 | 0.10 | q | 0.00 | d | 0.00 | 0.00 | 0.01 | 0.75 | 0.01 | 0.02 | 0.28 | 0.00 | 0.34 | 0.75 | u | ||||||||||
2022 | 0.02 | 0.02 | 0.14 | 0.00 | 0.00 | 0.00 | 0.70 | 0.90 | 0.62 | 0.30 | 0.16 | 0.60 | 0.90 | |||||||||||||
2023 | 0.42 | 0.29 | 0.31 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.52 | 0.02 | 0.13 | 0.19 | 0.52 | |||||||||||||
2024 | 0.54 | 0.41 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.41 | 0.39 | 0.34 | 0.14 | 0.05 | 0.03 | 0.28 | 0.37 | 0.36 | 0.25 | 0.25 | 0.37 | 1.11 | |||||||||||||
S.D. | 0.45 | 0.42 | 0.37 | 0.23 | 0.11 | 0.12 | 0.35 | 0.49 | 0.48 | 0.40 | 0.34 | 0.41 | 0.53 | |||||||||||||
SKEW | 1.79 | 1.19 | 1.18 | 2.37 | 3.05 | 5.75 | 1.99 | 2.55 | 1.63 | 2.80 | 2.34 | 0.99 | 1.10 | |||||||||||||
MAX | 2.35 | 1.75 | 1.60 | 1.01 | 0.63 | 0.89 | 1.80 | 3.05 | 2.02 | 2.34 | 1.77 | 1.48 | 3.05 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 | |||||||||||||
YRS | 84 | 82 | 83 | 80 | 78 | 81 | 83 | 82 | 83 | 84 | 80 | 80 | 63 |