YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1942 | 0.22 | a | 0.90 | 0.25 | a | 1.02 | 0.05 | 1.24 | 1.40 | 1.49 | 0.49 | 0.79 | 0.00 | 0.80 | 1.49 | b | ||||||||||
1943 | 0.68 | 0.00 | 0.72 | 0.54 | 0.55 | 0.75 | ----- | z | ----- | z | 0.25 | d | 0.58 | ----- | z | 1.04 | ----- | z | ||||||||
1944 | 0.70 | 0.48 | 0.24 | 0.50 | 0.80 | 3.75 | ----- | z | 0.71 | 1.48 | 0.29 | 0.53 | 0.51 | ----- | z | |||||||||||
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.07 | 0.76 | 1.27 | 0.54 | 0.47 | 0.00 | 0.27 | ----- | z | |||||||
1946 | 0.40 | 0.20 | 0.42 | 0.22 | 0.29 | 0.75 | 2.80 | 2.23 | 0.47 | 0.40 | 0.22 | 0.37 | 2.80 | |||||||||||||
1947 | 0.24 | 0.29 | 0.52 | 0.34 | 0.52 | 0.45 | 0.77 | 0.92 | 0.51 | 0.64 | 0.43 | 0.75 | l | 0.92 | l | |||||||||||
1948 | 0.22 | 1.25 | 0.55 | 0.23 | 0.72 | 0.86 | 1.67 | 0.20 | 0.46 | 0.37 | 0.01 | 1.39 | 1.67 | |||||||||||||
1949 | 0.46 | 1.18 | 0.35 | 0.64 | 0.20 | 0.45 | 1.20 | 0.89 | 1.00 | 0.86 | 0.10 | 0.92 | 1.20 | |||||||||||||
1950 | 0.23 | 0.22 | 0.02 | 0.08 | 0.07 | 0.64 | 1.61 | 0.77 | 1.03 | 0.09 | 0.00 | 0.00 | 1.61 | |||||||||||||
1951 | 0.46 | 0.80 | 0.91 | 0.65 | 0.20 | a | 0.10 | 0.77 | 2.05 | 0.76 | 0.53 | 1.23 | 0.56 | 2.05 | a | |||||||||||
1952 | 0.40 | 0.35 | 0.89 | 0.85 | 0.09 | 0.49 | 0.86 | 1.23 | 1.12 | 0.00 | 0.46 | 0.72 | 1.23 | |||||||||||||
1953 | 0.11 | 0.31 | 0.82 | 0.65 | a | 0.36 | 1.08 | 2.23 | 1.22 | 0.20 | 0.41 | 0.54 | 0.42 | 2.23 | a | |||||||||||
1954 | 0.33 | 0.10 | 0.69 | 0.06 | 1.78 | 0.28 | 1.23 | 0.86 | 1.02 | 0.94 | 0.01 | 0.29 | 1.78 | |||||||||||||
1955 | 0.34 | 0.82 | 1.49 | 0.17 | 0.14 | 0.24 | 0.47 | 1.13 | 0.70 | 1.20 | 0.03 | 0.37 | 1.49 | |||||||||||||
1956 | 0.18 | 0.64 | 0.00 | 0.26 | 0.53 | 0.59 | 1.19 | 1.19 | 0.48 | 0.57 | 0.00 | 0.13 | 1.19 | |||||||||||||
1957 | 0.46 | 0.31 | 0.61 | 0.29 | 0.54 | 1.12 | 0.93 | 1.27 | 0.09 | 0.63 | 0.41 | 0.27 | 1.27 | |||||||||||||
1958 | 0.56 | 0.71 | 1.04 | 0.51 | 0.80 | 0.54 | 2.26 | 0.66 | 0.95 | 0.26 | 0.55 | 0.39 | 2.26 | |||||||||||||
1959 | 0.02 | 1.54 | 0.22 | 0.17 | 0.40 | 0.52 | 1.05 | 1.56 | 0.04 | 0.38 | 0.01 | 0.65 | 1.56 | |||||||||||||
1960 | 0.81 | 0.30 | 0.14 | 0.02 | 0.28 | 0.46 | 0.97 | 0.29 | 0.22 | 0.87 | 0.12 | 0.61 | 0.97 | |||||||||||||
1961 | 0.66 | 0.08 | 0.48 | 0.08 | 0.30 | 1.14 | 1.06 | 1.79 | 1.23 | 0.06 | 0.93 | 1.67 | 1.79 | |||||||||||||
1962 | 0.45 | 0.24 | 0.27 | 0.33 | 0.28 | 0.63 | 1.39 | 0.63 | 1.59 | 0.57 | 0.73 | 0.57 | 1.59 | |||||||||||||
1963 | 0.79 | 0.54 | 0.02 | 0.31 | 0.07 | 0.08 | 1.24 | 2.34 | 1.19 | 0.29 | 0.21 | 0.15 | 2.34 | |||||||||||||
1964 | 0.13 | 0.56 | 0.39 | 0.33 | 0.78 | 0.00 | 1.16 | 0.63 | 2.59 | 0.44 | 0.13 | 0.34 | 2.59 | |||||||||||||
1965 | 1.21 | 0.54 | 0.66 | 0.46 | 1.23 | 5.11 | 1.26 | 1.12 | 1.77 | 0.39 | 0.64 | 1.35 | 5.11 | |||||||||||||
1966 | 0.55 | 0.67 | 0.28 | 0.89 | 0.09 | 1.06 | 0.41 | 0.68 | 0.28 | 0.03 | 1.16 | 0.62 | 1.16 | |||||||||||||
1967 | 0.00 | 0.35 | 0.09 | 0.42 | 0.27 | 0.98 | 1.33 | 1.39 | 0.55 | 0.02 | 0.41 | 1.04 | 1.39 | |||||||||||||
1968 | 0.33 | 0.75 | 0.55 | 0.11 | 0.40 | 1.00 | 1.85 | 0.45 | 0.40 | 0.45 | 0.60 | 0.90 | 1.85 | |||||||||||||
1969 | 0.25 | 0.25 | 0.15 | 0.10 | 0.75 | 0.55 | 0.80 | 1.35 | 0.67 | 1.00 | 0.35 | 0.95 | 1.35 | |||||||||||||
1970 | 0.50 | 0.21 | 0.75 | 0.04 | 0.00 | 0.75 | 0.77 | 0.73 | 0.16 | 0.59 | 0.05 | 0.50 | 0.77 | |||||||||||||
1971 | 0.15 | 1.15 | 0.20 | 0.25 | 0.59 | 0.27 | 1.36 | 1.05 | 1.20 | 0.95 | 0.65 | 0.50 | 1.36 | |||||||||||||
1972 | 0.35 | 0.55 | 0.00 | 0.00 | 0.00 | 1.40 | 1.00 | 1.20 | 1.03 | 2.00 | 0.40 | 0.40 | 2.00 | |||||||||||||
1973 | 0.35 | 0.50 | 0.60 | 0.43 | 0.85 | 1.00 | 1.15 | 1.30 | 0.15 | 0.01 | 0.36 | 0.15 | 1.30 | |||||||||||||
1974 | 1.20 | g | 0.75 | 0.25 | 0.00 | 0.10 | 0.21 | 1.00 | 0.60 | 1.35 | 1.80 | 0.20 | 0.45 | 1.80 | g | |||||||||||
1975 | ----- | z | ----- | z | 1.10 | 0.80 | 0.40 | 0.70 | 1.70 | ----- | z | 1.30 | 0.20 | 1.00 | 0.16 | ----- | z | |||||||||
1976 | 0.50 | 0.80 | 0.35 | 0.65 | 0.75 | 1.25 | 0.70 | 0.95 | 0.55 | 0.55 | 1.00 | 0.15 | 1.25 | |||||||||||||
1977 | 1.10 | 0.35 | 0.15 | 1.30 | 0.20 | 0.25 | 0.70 | 1.20 | 0.45 | 0.65 | 0.00 | 0.15 | 1.30 | |||||||||||||
1978 | 0.55 | 0.50 | 0.40 | 0.20 | 1.10 | ----- | z | 1.25 | 1.00 | 1.10 | 0.75 | 0.59 | 3.47 | ----- | z | |||||||||||
1979 | 0.90 | 0.57 | 0.20 | 0.20 | 0.65 | 1.78 | 0.48 | 0.45 | 0.67 | ----- | z | 0.93 | 0.40 | ----- | z | |||||||||||
1980 | 0.80 | 0.30 | 0.26 | 0.40 | 0.92 | 0.33 | 0.60 | 1.23 | 0.95 | 0.20 | 0.38 | 0.26 | 1.23 | |||||||||||||
1981 | 0.64 | 0.69 | ----- | z | ----- | z | 0.36 | 0.96 | 1.41 | 1.02 | 0.61 | 0.42 | 0.34 | 0.00 | ----- | z | ||||||||||
1982 | 1.22 | a | 0.56 | 0.14 | 0.21 | 0.24 | 0.30 | 2.00 | 1.07 | 1.63 | 0.30 | 0.58 | 0.62 | 2.00 | a | |||||||||||
1983 | 0.50 | 0.68 | 0.31 | 0.85 | 0.32 | 0.18 | 0.69 | 0.72 | 0.55 | 1.21 | 0.50 | 0.52 | 1.21 | |||||||||||||
1984 | 0.23 | 0.00 | 0.00 | 0.12 | 1.56 | 0.50 | 0.74 | 1.15 | 0.75 | 1.08 | 0.06 | 1.04 | 1.56 | |||||||||||||
1985 | 0.58 | 0.80 | 0.64 | 0.58 | 0.18 | 1.36 | 0.81 | 0.97 | 0.96 | 2.01 | 0.21 | 0.12 | 2.01 | |||||||||||||
1986 | 0.31 | 0.73 | 0.46 | d | 0.07 | 0.43 | 1.54 | 0.63 | 0.75 | 0.83 | 0.70 | 0.72 | 0.60 | 1.54 | d | |||||||||||
1987 | 0.58 | 0.85 | a | 0.42 | 0.47 | 0.56 | 0.42 | t | ----- | z | 1.32 | 0.30 | 0.15 | 0.46 | 1.40 | ----- | z | |||||||||
1988 | 0.82 | 0.64 | 0.10 | 0.78 | 0.32 | 0.52 | 1.21 | 1.19 | 1.59 | 0.08 | 0.28 | 1.61 | 1.61 | |||||||||||||
1989 | 0.16 | 1.27 | 0.58 | 0.12 | 0.81 | 0.50 | 1.35 | 2.12 | 0.52 | 0.08 | 0.01 | 0.29 | 2.12 | |||||||||||||
1990 | 0.33 | 0.54 | 0.59 | 0.63 | 0.47 | 0.15 | 1.38 | 0.71 | 1.33 | 0.17 | 0.38 | 0.62 | 1.38 | |||||||||||||
1991 | 0.29 | 0.72 | 0.37 | 0.07 | 0.95 | 0.20 | 0.87 | 0.69 | 0.65 | 0.74 | 0.77 | 0.66 | 0.95 | |||||||||||||
1992 | 0.71 | 0.50 | 0.30 | 0.46 | 1.36 | 0.70 | 0.43 | 0.89 | 0.24 | 0.44 | 0.23 | 1.26 | 1.36 | |||||||||||||
1993 | 0.64 | 0.79 | 0.14 | 0.33 | ----- | z | ----- | z | ----- | z | ----- | z | 0.62 | 1.12 | 0.50 | 0.45 | ----- | z | ||||||||
1994 | 0.18 | a | 0.50 | 0.60 | 0.12 | 0.95 | 0.25 | a | 0.46 | 1.10 | 0.64 | 0.29 | 1.35 | 1.14 | 1.35 | b | ||||||||||
1995 | 0.70 | 0.52 | 0.64 | 0.22 | 0.05 | 0.60 | 0.52 | 0.70 | 2.00 | 0.00 | 0.20 | 0.50 | 2.00 | |||||||||||||
1996 | 0.78 | 0.30 | 0.10 | 0.12 | 0.04 | 1.38 | 0.87 | 0.84 | a | 1.22 | 0.39 | 0.25 | 0.01 | 1.38 | a | |||||||||||
1997 | 0.46 | 0.41 | 0.42 | 0.52 | 0.90 | 1.06 | 0.94 | 0.93 | 0.49 | 0.46 | 0.31 | 0.80 | 1.06 | |||||||||||||
1998 | 0.19 | 0.33 | 0.63 | a | 0.06 | 0.00 | a | 0.27 | ----- | z | 0.82 | 0.45 | 1.45 | b | ----- | z | 0.68 | ----- | z | |||||||
1999 | 0.40 | c | 0.00 | ----- | z | 0.48 | c | 0.09 | ----- | z | 1.40 | a | 0.82 | 0.89 | 1.00 | b | 0.00 | 0.53 | b | ----- | z | |||||
2000 | 0.00 | 0.10 | 0.11 | 0.38 | 0.15 | 1.97 | 0.75 | b | 1.00 | b | 0.24 | 0.56 | 0.40 | 0.45 | 1.97 | d | ||||||||||
2001 | 0.29 | 0.51 | 0.50 | 1.00 | 0.75 | c | 0.70 | b | 0.56 | a | 1.48 | a | 1.60 | b | 0.16 | 0.55 | a | 0.50 | a | 1.60 | k | |||||
2002 | 0.35 | 0.20 | 0.44 | 0.02 | 0.16 | 0.38 | 1.06 | 0.74 | 0.62 | 0.55 | 0.52 | 1.30 | 1.30 | |||||||||||||
2003 | 0.14 | a | 0.41 | 0.46 | 0.54 | a | 0.21 | 0.53 | 0.17 | b | 1.00 | 0.39 | 1.07 | a | 0.55 | 0.29 | a | 1.07 | f | |||||||
2004 | 0.28 | a | 0.34 | 0.20 | 0.75 | 0.32 | a | 0.38 | 0.37 | a | 1.20 | b | 0.47 | 1.17 | 0.48 | a | 0.55 | 1.20 | f | |||||||
2005 | 0.80 | 0.90 | 0.75 | 0.40 | c | 0.50 | j | 0.05 | w | 0.20 | 1.20 | b | 1.10 | 1.81 | 0.06 | 0.20 | ----- | z | ||||||||
2006 | 0.11 | 0.22 | 0.22 | a | 0.53 | 0.29 | 0.70 | 1.80 | 2.00 | 3.12 | a | 1.10 | 0.33 | 0.82 | 3.12 | b | ||||||||||
2007 | 0.42 | 0.50 | 0.52 | 0.32 | 0.58 | a | 0.72 | 1.17 | a | 0.60 | 0.62 | 0.03 | 0.40 | 1.38 | 1.38 | b | ||||||||||
2008 | 0.50 | 0.08 | 0.45 | 0.02 | 0.71 | 1.40 | 4.67 | 1.48 | 1.00 | a | 0.56 | 0.18 | 0.34 | 4.67 | a | |||||||||||
2009 | 0.10 | 0.18 | 0.50 | 0.18 | 1.65 | 1.20 | b | 1.75 | a | 0.43 | 0.89 | b | 0.55 | 0.41 | a | 0.63 | 1.75 | f | ||||||||
2010 | 1.24 | 0.41 | 0.49 | a | 0.60 | 0.13 | 0.50 | 0.88 | 1.33 | 0.81 | 0.56 | 0.00 | 0.37 | 1.33 | a | |||||||||||
2011 | 0.01 | m | 0.80 | g | 0.00 | q | 0.30 | v | 0.00 | v | 0.15 | k | 0.54 | j | 1.06 | i | 0.33 | m | 0.97 | 0.07 | 0.28 | ----- | z | |||
2012 | 0.15 | 0.10 | a | 0.03 | b | 0.03 | 0.37 | 0.25 | 0.44 | a | 0.28 | 0.57 | a | 0.00 | 0.03 | 0.10 | 0.57 | e | ||||||||
2013 | 0.01 | 0.01 | b | 0.06 | 0.00 | 0.00 | 0.12 | 1.28 | 0.82 | 1.09 | 0.32 | 0.08 | 0.01 | e | 1.28 | g | ||||||||||
2014 | 0.00 | 0.05 | 0.02 | 0.04 | 0.03 | 0.06 | 0.39 | b | 0.11 | 0.33 | 0.23 | b | 0.06 | 0.01 | 0.39 | d | ||||||||||
2015 | 0.05 | a | 0.02 | e | 0.01 | e | 0.01 | a | 0.02 | 0.03 | 0.01 | c | 0.23 | 0.30 | 0.28 | 0.01 | i | 0.09 | b | ----- | z | |||||
2016 | 0.04 | c | 0.00 | a | 0.00 | a | 0.02 | 0.00 | 0.00 | c | 0.00 | a | 0.68 | 0.26 | 0.07 | 0.49 | 0.14 | 0.68 | i | |||||||
2017 | 0.00 | d | 0.00 | 0.00 | 0.00 | 0.00 | 1.37 | 0.14 | d | 0.01 | a | 0.21 | a | 0.14 | a | 0.00 | ----- | z | ----- | z | ||||||
2018 | 0.00 | i | ----- | z | 0.08 | 0.02 | 0.06 | 0.26 | 0.02 | c | 0.98 | 1.00 | a | 1.23 | b | 0.00 | 0.05 | ----- | z | |||||||
2019 | 0.02 | a | 0.06 | n | 0.19 | j | 0.92 | 0.16 | 0.13 | f | ----- | z | 1.01 | c | 0.59 | a | 0.64 | 0.50 | 0.00 | c | ----- | z | ||||
2020 | 0.14 | 0.05 | b | 0.19 | a | 0.07 | 0.26 | 0.35 | 0.58 | 0.38 | 1.08 | 0.36 | 0.14 | 0.05 | 1.08 | c | ||||||||||
2021 | 0.03 | b | 0.06 | a | 0.25 | 0.48 | 0.84 | 1.54 | 0.79 | 0.90 | 0.24 | 0.00 | 0.12 | 0.12 | 1.54 | c | ||||||||||
2022 | 0.12 | 0.05 | a | 0.17 | 0.00 | 0.03 | 1.31 | 0.86 | 1.35 | 0.86 | c | 1.39 | 0.11 | a | 0.19 | a | 1.39 | f | ||||||||
2023 | 0.06 | 0.03 | a | 0.04 | a | 0.00 | 0.22 | 0.33 | 0.34 | 1.70 | 0.97 | a | 0.05 | 0.18 | 0.36 | 1.70 | c | |||||||||
2024 | 0.06 | 0.11 | 0.14 | 0.17 | i | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.40 | 0.45 | 0.37 | 0.34 | 0.44 | 0.77 | 1.03 | 1.01 | 0.81 | 0.58 | 0.36 | 0.56 | 1.69 | |||||||||||||
S.D. | 0.31 | 0.34 | 0.30 | 0.30 | 0.41 | 0.78 | 0.69 | 0.47 | 0.55 | 0.48 | 0.32 | 0.53 | 0.80 | |||||||||||||
SKEW | 0.83 | 0.76 | 1.02 | 0.85 | 1.24 | 3.17 | 2.17 | 0.54 | 1.52 | 1.08 | 0.99 | 2.48 | 2.45 | |||||||||||||
MAX | 1.24 | 1.54 | 1.49 | 1.30 | 1.78 | 5.11 | 4.67 | 2.34 | 3.12 | 2.01 | 1.35 | 3.47 | 5.11 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.04 | 0.00 | 0.00 | 0.00 | 0.39 | |||||||||||||
YRS | 78 | 78 | 78 | 79 | 78 | 75 | 75 | 78 | 81 | 81 | 79 | 80 | 55 |