YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.27 | k | 0.88 | 0.25 | 0.08 | 0.16 | ----- | z | ||||
1941 | 0.57 | 0.02 | 0.58 | 0.48 | b | 0.75 | 2.12 | 1.09 | 0.79 | 1.73 | 0.83 | 0.09 | 0.27 | 2.12 | b | |||||||||||
1942 | 0.56 | 0.48 | 0.41 | 1.53 | 0.30 | 1.35 | 0.55 | 1.30 | 4.23 | 1.48 | 0.18 | 0.28 | 4.23 | |||||||||||||
1943 | 0.23 | ----- | z | ----- | z | 0.86 | 0.55 | 0.34 | 1.88 | 0.39 | 0.18 | 0.39 | 0.43 | 0.36 | ----- | z | ||||||||||
1944 | 0.49 | 0.14 | 0.76 | 0.80 | 0.90 | 0.50 | 0.64 | 0.17 | 0.70 | 0.13 | 0.71 | 0.12 | 0.90 | |||||||||||||
1945 | 0.30 | 0.15 | 0.23 | 1.40 | 0.93 | 0.80 | 0.65 | 0.89 | 1.10 | 0.21 | 0.18 | 0.00 | 1.40 | |||||||||||||
1946 | ----- | z | ----- | z | 0.72 | 0.81 | 1.03 | 0.37 | 1.47 | 1.53 | 0.88 | 0.71 | ----- | z | 0.00 | ----- | z | |||||||||
1947 | 0.21 | 0.20 | 0.67 | 0.57 | x | 1.75 | 0.45 | f | 0.84 | 0.86 | 0.31 | 0.27 | 0.32 | 0.26 | ----- | z | ||||||||||
1948 | ----- | z | 0.15 | ----- | z | ----- | z | 0.51 | 0.74 | 0.61 | ----- | z | ----- | z | ----- | z | 0.28 | a | 0.20 | ----- | z | |||||
1949 | 0.30 | 0.16 | 0.81 | 0.30 | n | 0.86 | 0.99 | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | y | 0.06 | ----- | z | ||||||
1950 | 0.17 | 0.27 | a | 0.33 | 0.76 | 0.77 | 0.35 | 0.93 | 0.61 | a | 0.41 | 0.00 | 0.30 | 0.00 | 0.93 | b | ||||||||||
1951 | 0.20 | 0.12 | 0.09 | 0.50 | 0.98 | 0.52 | c | 0.75 | 0.65 | 0.35 | 0.58 | 0.40 | 0.15 | 0.98 | c | |||||||||||
1952 | 0.00 | 0.24 | 0.73 | 1.61 | 0.68 | 0.00 | 0.17 | 1.00 | 0.99 | 0.18 | 0.42 | 0.00 | 1.61 | |||||||||||||
1953 | 0.14 | 0.30 | 0.33 | 0.95 | 1.35 | 0.61 | 0.50 | 1.24 | 0.30 | 0.49 | 0.37 | 0.22 | a | 1.35 | a | |||||||||||
1954 | 0.18 | 0.00 | 0.13 | 0.03 | 0.33 | 0.32 | 0.95 | 0.68 | 0.21 | 0.42 | 0.06 | 0.15 | 0.95 | |||||||||||||
1955 | 0.07 | 0.10 | 0.21 | 0.00 | 1.20 | 0.95 | 0.29 | 1.53 | 0.45 | f | 0.04 | 0.13 | 0.00 | 1.53 | f | |||||||||||
1956 | 0.25 | 0.00 | 0.28 | 0.09 | 0.40 | 0.35 | 0.63 | 0.36 | 0.18 | 0.08 | 0.40 | 0.32 | 0.63 | |||||||||||||
1957 | 0.23 | 0.00 | 0.36 | 1.83 | 1.20 | 0.40 | 0.85 | 0.70 | 0.65 | 0.38 | 0.15 | 0.45 | 1.83 | |||||||||||||
1958 | 0.35 | 0.12 | 0.36 | 0.55 | 0.78 | 1.45 | 0.88 | 0.50 | 1.03 | 0.34 | 0.24 | 0.24 | 1.45 | |||||||||||||
1959 | 0.30 | 0.10 | 0.60 | 0.30 | 0.95 | 0.48 | 1.44 | 0.64 | 0.80 | 0.65 | 0.10 | 0.27 | 1.44 | |||||||||||||
1960 | 0.56 | 0.51 | 0.28 | 0.18 | 0.63 | 0.21 | 1.45 | 0.81 | 0.35 | 1.40 | 0.27 | 0.19 | a | 1.45 | a | |||||||||||
1961 | 0.11 | i | 0.21 | 0.76 | a | 0.36 | 1.83 | 0.37 | 0.86 | 0.70 | 0.95 | 0.20 | 0.45 | d | 0.30 | 1.83 | n | |||||||||
1962 | 0.43 | 0.10 | 0.45 | 0.12 | 1.25 | 2.40 | 1.00 | 2.16 | 0.12 | 0.06 | 0.24 | 0.07 | 2.40 | |||||||||||||
1963 | 0.18 | 0.10 | 0.15 | 0.07 | 0.43 | 0.45 | 0.56 | 1.23 | 0.77 | 0.05 | 0.21 | 0.11 | 1.23 | |||||||||||||
1964 | 0.04 | 0.06 | 0.28 | 0.23 | 1.24 | 0.50 | 0.30 | 0.79 | 0.50 | 0.10 | 0.25 | 0.00 | 1.24 | |||||||||||||
1965 | 0.10 | 0.40 | 0.31 | 0.05 | 0.64 | 1.99 | 2.37 | 2.00 | 0.48 | 0.17 | 0.00 | 0.20 | 2.37 | |||||||||||||
1966 | 0.18 | 0.19 | 0.18 | 0.31 | 0.18 | 0.35 | 1.25 | 0.66 | 0.48 | 0.45 | 0.02 | 0.07 | 1.25 | |||||||||||||
1967 | 0.12 | 0.00 | 0.11 | 0.34 | 1.50 | 1.00 | 0.78 | j | 0.53 | 0.36 | 0.17 | 0.21 | 0.18 | 1.50 | j | |||||||||||
1968 | 0.22 | 0.12 | 0.20 | 0.21 | 0.34 | 0.83 | 1.70 | 0.97 | 0.51 | 0.18 | 0.25 | 0.10 | 1.70 | |||||||||||||
1969 | 0.06 | 0.04 | 0.14 | 0.36 | 1.00 | 2.50 | 0.46 | 0.86 | f | 0.58 | d | 0.70 | 0.13 | 0.40 | 2.50 | j | ||||||||||
1970 | 0.02 | 0.05 | 0.16 | 1.00 | 0.48 | 0.72 | 1.15 | 0.83 | 0.40 | 0.40 | 0.47 | 0.06 | 1.15 | |||||||||||||
1971 | 0.20 | 0.15 | 0.31 | 1.20 | 0.35 | 0.86 | 0.55 | 0.25 | 1.50 | 0.42 | 0.24 | 0.05 | 1.50 | |||||||||||||
1972 | 0.12 | 0.06 | 0.25 | 1.00 | 0.42 | 0.40 | 1.03 | 0.75 | 0.92 | 0.60 | 0.35 | 0.16 | 1.03 | |||||||||||||
1973 | 0.16 | 0.06 | 0.40 | 0.64 | 1.34 | 1.09 | 0.45 | 1.25 | 0.48 | 0.41 | 0.10 | 0.40 | 1.34 | |||||||||||||
1974 | 0.10 | 0.07 | 0.76 | 0.80 | 0.20 | 1.00 | 0.60 | 1.49 | 0.17 | 0.47 | 0.24 | 0.25 | 1.49 | |||||||||||||
1975 | 0.06 | 0.05 | 0.10 | 0.37 | 1.18 | 0.72 | 0.69 | 0.23 | 0.11 | 0.10 | 0.50 | 0.10 | 1.18 | |||||||||||||
1976 | 0.09 | 0.08 | 0.30 | 0.57 | 0.24 | 0.50 | 0.40 | 0.47 | 0.60 | 0.58 | 0.07 | 0.00 | 0.60 | |||||||||||||
1977 | 0.10 | 0.06 | 1.00 | a | 0.62 | 1.73 | 0.10 | 1.37 | 0.72 | 0.12 | 0.09 | 0.35 | 0.02 | 1.73 | a | |||||||||||
1978 | 0.09 | 0.17 | 0.12 | 0.35 | 0.90 | 2.23 | 0.18 | 0.91 | 0.14 | 0.74 | 0.12 | 0.18 | 2.23 | |||||||||||||
1979 | 0.11 | 0.24 | 0.50 | 0.40 | 1.11 | 1.30 | 0.58 | 0.76 | 0.32 | 0.25 | 0.15 | 0.26 | 1.30 | |||||||||||||
1980 | 0.11 | 0.25 | 0.27 | 1.13 | 0.75 | 0.55 | 1.17 | 0.76 | 1.54 | 0.00 | 0.07 | 0.00 | 1.54 | |||||||||||||
1981 | 0.03 | 0.02 | 0.74 | 0.20 | 0.96 | 1.72 | 1.00 | 0.37 | 0.13 | 0.21 | 0.38 | 0.07 | 1.72 | |||||||||||||
1982 | 0.04 | 0.08 | 0.03 | 0.15 | 1.45 | 0.85 | 1.00 | 1.74 | 0.50 | 0.18 | 0.25 | 0.00 | h | 1.74 | h | |||||||||||
1983 | 0.00 | 0.04 | 1.00 | 0.64 | 0.54 | a | 0.54 | ----- | z | 1.78 | 0.18 | 1.25 | ----- | z | ----- | z | ----- | z | ||||||||
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1987 | 0.30 | 0.90 | 0.60 | 0.50 | 1.17 | 1.08 | 0.78 | 0.80 | 0.48 | 0.35 | 0.40 | 0.18 | 1.17 | |||||||||||||
1988 | 0.26 | a | 0.10 | 0.17 | 0.90 | 1.40 | 0.72 | 1.25 | 1.33 | 0.44 | 0.07 | 0.20 | 0.48 | 1.40 | a | |||||||||||
1989 | 0.14 | 0.13 | q | 0.15 | 0.05 | 0.72 | 1.68 | 0.38 | 2.17 | 0.66 | 0.27 | 0.04 | 0.26 | 2.17 | q | |||||||||||
1990 | 0.79 | 0.32 | 0.46 | 0.56 | 0.69 | 0.84 | 1.25 | 1.11 | 0.83 | 0.40 | 0.40 | 0.00 | 1.25 | |||||||||||||
1991 | 0.20 | 0.00 | 0.56 | 0.41 | 0.87 | 0.86 | 1.61 | 1.12 | 0.34 | 0.60 | 1.30 | 0.43 | a | 1.61 | a | |||||||||||
1992 | 0.45 | 0.05 | 0.41 | 0.21 | 0.34 | 1.65 | 1.27 | 1.68 | 0.08 | 0.12 | 0.56 | 0.15 | 1.68 | |||||||||||||
1993 | 0.20 | 0.45 | 0.17 | 0.22 | 0.55 | 1.12 | 0.18 | 0.89 | 0.18 | 1.04 | 0.92 | 0.00 | 1.12 | |||||||||||||
1994 | 0.70 | 0.02 | 0.19 | a | 0.60 | 0.55 | 0.32 | 0.78 | 2.01 | 0.08 | 0.70 | 0.17 | 0.07 | 2.01 | a | |||||||||||
1995 | 0.67 | 0.37 | 0.20 | 0.43 | a | 0.72 | 1.51 | 1.32 | 0.93 | 0.87 | 0.40 | 0.14 | 0.00 | 1.51 | a | |||||||||||
1996 | 0.13 | 0.01 | 0.50 | 0.75 | 2.65 | 0.30 | 1.03 | c | 1.90 | 1.76 | a | 0.15 | 0.00 | 0.09 | 2.65 | d | ||||||||||
1997 | 0.30 | 0.70 | 0.11 | 0.49 | a | 0.35 | 1.71 | 1.36 | a | 0.56 | 0.31 | 1.20 | a | 0.17 | 0.20 | 1.71 | c | |||||||||
1998 | 0.01 | 0.81 | 0.14 | 1.25 | 0.91 | 0.27 | 3.22 | b | 0.55 | 2.01 | 0.37 | 0.10 | 0.11 | 3.22 | b | |||||||||||
1999 | 0.03 | d | 0.03 | d | 0.11 | 0.92 | 1.49 | 0.54 | 0.54 | 1.33 | 0.28 | 0.24 | 0.11 | a | 0.13 | 1.49 | i | |||||||||
2000 | 0.02 | 0.82 | 0.65 | 1.68 | 1.20 | 0.31 | 1.67 | 0.25 | b | 0.32 | a | 0.76 | 0.12 | 0.65 | d | 1.68 | g | |||||||||
2001 | 0.16 | 0.50 | a | 0.17 | b | 1.50 | c | 1.16 | e | 0.90 | h | 0.77 | 2.13 | k | 0.43 | d | 0.00 | f | 0.52 | d | 0.21 | b | ----- | z | ||
2002 | 1.85 | 0.02 | b | 0.15 | b | 0.15 | f | 0.26 | k | 1.53 | k | 0.10 | e | 0.92 | c | 3.45 | b | 0.37 | b | 1.40 | d | 0.09 | a | ----- | z | |
2003 | 0.10 | d | 0.11 | f | 1.49 | a | 0.31 | b | 1.20 | b | 0.98 | 0.00 | d | 0.82 | e | 0.21 | 0.00 | e | 0.10 | d | 0.04 | d | ----- | z | ||
2004 | 0.05 | 0.18 | a | 0.01 | h | 0.43 | 0.61 | 0.98 | a | 3.20 | 0.72 | c | 0.63 | 0.14 | b | 0.40 | a | 0.02 | f | 3.20 | v | |||||
2005 | 0.00 | i | 0.00 | c | 0.17 | a | 1.26 | 0.50 | e | 1.93 | d | 0.35 | a | 1.29 | b | 0.50 | d | 0.75 | c | 0.10 | c | 0.05 | g | ----- | z | |
2006 | 0.05 | c | 0.00 | b | 0.36 | b | 0.21 | c | 0.54 | d | 2.60 | e | 0.88 | b | 1.35 | a | 1.20 | c | 0.90 | c | 0.03 | g | 0.26 | i | ----- | z |
2007 | 0.19 | e | 0.07 | b | 0.10 | b | 0.81 | c | 0.96 | a | 1.26 | b | 2.20 | 0.83 | a | 0.56 | 0.10 | 0.07 | a | 0.20 | 2.20 | q | ||||
2008 | 0.01 | 0.22 | h | 0.30 | 0.37 | 0.17 | 1.04 | 1.05 | 3.60 | 0.13 | 0.48 | a | 0.20 | a | 0.03 | a | 3.60 | k | ||||||||
2009 | 0.05 | b | 0.15 | 2.20 | a | 1.32 | 0.68 | 1.00 | 0.65 | 0.73 | 0.44 | 0.60 | 0.35 | a | 0.15 | 2.20 | d | |||||||||
2010 | 0.00 | 0.12 | 0.18 | 0.60 | 0.39 | a | 0.56 | 1.70 | 1.87 | 0.20 | 0.29 | 0.20 | 0.05 | b | 1.87 | c | ||||||||||
2011 | 0.09 | 0.05 | 0.07 | 0.26 | 2.80 | 1.23 | 0.77 | 0.95 | a | 0.31 | 0.26 | 0.10 | 0.08 | 2.80 | a | |||||||||||
2012 | 0.00 | 0.30 | b | 0.21 | 2.75 | 0.35 | 0.77 | 0.74 | 0.42 | 0.39 | 0.09 | 0.02 | 0.13 | 2.75 | b | |||||||||||
2013 | 0.07 | 0.22 | 0.57 | 0.17 | a | 0.98 | 0.68 | a | 0.85 | 0.87 | 1.61 | 0.59 | 0.05 | a | 0.01 | 1.61 | c | |||||||||
2014 | 0.16 | 0.12 | 0.15 | 0.57 | 0.50 | 1.20 | 2.28 | 1.65 | 0.73 | 0.82 | 0.01 | 0.13 | 2.28 | |||||||||||||
2015 | 0.09 | 0.32 | 0.20 | 0.82 | 1.00 | 0.92 | 1.70 | 1.40 | 0.19 | 1.05 | 0.12 | a | 0.15 | 1.70 | a | |||||||||||
2016 | 0.07 | 0.26 | a | 0.23 | 0.80 | 1.43 | 0.24 | 0.36 | 0.60 | 1.17 | c | 0.06 | 0.02 | 0.08 | 1.43 | d | ||||||||||
2017 | 0.13 | 0.02 | a | 1.00 | 0.49 | 0.54 | 0.20 | 1.30 | 1.00 | 1.50 | a | 0.35 | 0.00 | 0.00 | 1.50 | b | ||||||||||
2018 | 0.32 | 0.08 | 0.22 | c | 0.25 | 1.40 | 1.00 | a | 0.64 | i | 1.96 | 0.26 | 0.50 | f | 0.02 | 0.01 | k | ----- | z | |||||||
2019 | 0.08 | 0.16 | 0.65 | 0.02 | d | 1.60 | e | 0.55 | a | 0.48 | 0.91 | b | 0.18 | a | 0.28 | 0.15 | 0.05 | 1.60 | m | |||||||
2020 | 0.00 | a | 0.10 | 0.46 | 0.10 | a | 0.59 | 0.40 | 0.97 | 0.32 | 0.38 | 0.18 | f | 0.03 | 0.07 | 0.97 | h | |||||||||
2021 | 0.20 | 0.30 | 0.58 | 0.40 | 0.73 | 0.25 | 0.37 | 0.56 | 0.44 | 0.05 | 0.02 | 0.00 | h | 0.73 | h | |||||||||||
2022 | 0.12 | a | 0.06 | 0.45 | 0.00 | 0.55 | i | 0.49 | 2.00 | 0.65 | 0.08 | 0.11 | b | 0.02 | 0.39 | 2.00 | l | |||||||||
2023 | 0.16 | 0.18 | 0.35 | 0.27 | 1.16 | 1.80 | 0.41 | 0.61 | 0.38 | 0.30 | 0.03 | 0.27 | 1.80 | |||||||||||||
2024 | 0.10 | 0.66 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.21 | 0.19 | 0.40 | 0.61 | 0.89 | 0.89 | 0.99 | 1.01 | 0.66 | 0.41 | 0.24 | 0.16 | 1.65 | |||||||||||||
S.D. | 0.26 | 0.20 | 0.34 | 0.51 | 0.51 | 0.60 | 0.64 | 0.58 | 0.69 | 0.34 | 0.25 | 0.14 | 0.65 | |||||||||||||
SKEW | 3.85 | 1.81 | 2.47 | 1.49 | 1.25 | 1.03 | 1.32 | 1.51 | 2.93 | 1.22 | 2.48 | 1.09 | 1.50 | |||||||||||||
MAX | 1.85 | 0.90 | 2.20 | 2.75 | 2.80 | 2.60 | 3.22 | 3.60 | 4.23 | 1.48 | 1.40 | 0.65 | 4.23 | |||||||||||||
MIN | 0.00 | 0.00 | 0.03 | 0.00 | 0.17 | 0.00 | 0.00 | 0.17 | 0.08 | 0.00 | 0.00 | 0.00 | 0.60 | |||||||||||||
YRS | 77 | 76 | 77 | 76 | 78 | 77 | 76 | 76 | 78 | 76 | 77 | 74 | 53 |