YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1968 | 1.10 | 0.90 | 0.32 | 0.10 | 0.28 | 0.26 | 0.03 | 0.50 | 0.07 | 0.93 | 2.00 | 1.00 | 2.00 | |||||||||||||
1969 | 0.63 | 0.61 | 0.42 | 0.20 | 0.38 | 0.33 | 0.05 | 0.00 | 0.60 | 0.40 | 0.43 | 0.91 | 0.91 | |||||||||||||
1970 | 1.15 | 0.50 | 0.63 | 0.35 | 0.03 | 0.35 | 0.00 | 0.00 | 0.20 | 0.70 | 1.05 | 0.94 | 1.15 | |||||||||||||
1971 | 1.33 | 0.36 | 0.82 | 0.41 | 0.20 | 0.25 | 0.10 | 0.03 | 1.33 | 1.15 | 0.80 | 0.92 | 1.33 | |||||||||||||
1972 | 1.15 | 1.42 | 0.63 | 0.30 | 0.56 | 0.45 | 0.07 | 0.40 | 0.44 | 0.06 | 0.35 | 1.00 | 1.42 | |||||||||||||
1973 | 0.90 | 0.35 | 0.14 | 0.24 | 0.28 | 0.05 | 0.00 | 0.00 | 0.37 | 1.73 | 0.93 | 1.06 | 1.73 | |||||||||||||
1974 | 3.34 | 0.70 | 0.68 | 0.78 | 0.38 | 0.48 | 0.35 | 0.00 | 0.00 | 0.18 | 0.55 | 0.74 | 3.34 | |||||||||||||
1975 | 1.20 | 1.12 | 0.86 | 0.49 | 0.06 | 0.41 | 0.78 | 0.90 | 0.00 | 0.72 | 0.64 | 1.62 | 1.62 | |||||||||||||
1976 | 0.63 | 0.76 | 0.81 | 0.60 | 0.20 | 0.45 | 0.00 | 0.52 | 0.15 | 0.34 | 0.27 | 0.16 | 0.81 | |||||||||||||
1977 | 0.20 | 0.69 | 0.41 | 0.00 | 0.64 | 0.30 | 0.32 | 0.90 | 0.21 | 0.51 | 1.98 | f | 3.23 | 3.23 | f | |||||||||||
1978 | 0.76 | 0.62 | 0.21 | 0.29 | 0.27 | 0.00 | 0.33 | 0.76 | 0.40 | 0.00 | 0.10 | 0.75 | 0.76 | |||||||||||||
1979 | 1.20 | 0.80 | a | 0.42 | 0.30 | ----- | z | 0.00 | 0.20 | ----- | z | 0.35 | 0.48 | 0.71 | 0.61 | ----- | z | |||||||||
1980 | 2.10 | 0.81 | 0.33 | 0.39 | 0.35 | 1.07 | 0.20 | 0.14 | 0.25 | 0.37 | 1.33 | 3.15 | 3.15 | |||||||||||||
1981 | 0.36 | 0.84 | 0.15 | 0.22 | 0.30 | 0.99 | 0.47 | 0.08 | 0.81 | 1.02 | 0.63 | 1.25 | 1.25 | |||||||||||||
1982 | 1.20 | a | 1.58 | 0.36 | m | 1.42 | o | 0.18 | s | 0.46 | 0.05 | 0.28 | 0.79 | 1.10 | a | 0.88 | a | 1.23 | a | ----- | z | |||||
1983 | 0.79 | 1.55 | a | 1.61 | 0.51 | 2.20 | 0.15 | 0.26 | 0.62 | 0.65 | 0.70 | a | 0.71 | 0.58 | 2.20 | b | ||||||||||
1984 | 0.38 | 0.65 | 0.51 | a | 0.44 | 1.89 | 2.00 | 0.00 | 0.00 | 0.45 | 0.25 | 1.93 | 1.43 | l | 2.00 | m | ||||||||||
1985 | 0.19 | 0.87 | ----- | z | 0.22 | 0.90 | 0.66 | 0.00 | 0.09 | 0.85 | 0.56 | 0.71 | 0.42 | ----- | z | |||||||||||
1986 | 0.75 | 0.51 | 0.56 | 0.14 | 0.18 | 0.08 | a | 0.18 | 0.08 | 0.81 | 0.25 | 0.81 | 0.42 | 0.81 | a | |||||||||||
1987 | 0.91 | 1.08 | 0.77 | 0.17 | b | 0.50 | 0.05 | a | 0.53 | d | ----- | z | 0.00 | e | ----- | z | 0.55 | m | 2.95 | g | ----- | z | ||||
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.02 | f | 0.05 | 0.00 | 0.00 | b | 0.22 | b | 1.00 | g | ----- | z | ----- | z | ||
1989 | ----- | z | 0.31 | b | ----- | z | 0.35 | 0.42 | 0.05 | 0.01 | 0.83 | a | 0.00 | 0.73 | 0.67 | e | 0.93 | a | ----- | z | ||||||
1990 | ----- | z | 3.36 | d | 0.47 | a | 0.87 | 1.20 | 0.37 | 0.00 | b | 0.91 | 0.04 | 0.98 | 1.61 | h | ----- | z | ----- | z | ||||||
1991 | ----- | z | ----- | z | 2.83 | 0.61 | c | 0.25 | f | 1.20 | a | 0.15 | 0.00 | 0.00 | 0.63 | c | 1.17 | c | 1.33 | t | ----- | z | ||||
1992 | 1.40 | n | 1.16 | p | 0.54 | e | 0.95 | b | 0.00 | 0.72 | 0.59 | a | 0.32 | a | 0.58 | f | ----- | z | ----- | z | ----- | z | ----- | z | ||
1993 | ----- | z | ----- | z | 0.93 | l | 0.52 | b | 0.15 | a | 0.64 | 0.55 | b | 0.35 | 0.01 | c | 0.02 | 0.11 | d | 1.30 | h | ----- | z | |||
1994 | 1.38 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1995 | 1.43 | a | 1.91 | b | 0.55 | a | 0.80 | 0.30 | a | 0.45 | 0.71 | 0.10 | 0.50 | 0.13 | 1.35 | 0.84 | 1.91 | e | ||||||||
1996 | 1.15 | e | 4.70 | d | 0.64 | 1.00 | 0.56 | a | 0.02 | 0.02 | 0.00 | 0.46 | 0.47 | 2.20 | b | 1.00 | b | 4.70 | n | |||||||
1997 | 0.74 | a | 0.58 | a | 1.05 | a | 0.22 | c | 0.35 | ----- | z | 0.51 | 0.13 | 0.47 | ----- | z | 0.56 | 1.02 | ----- | z | ||||||
1998 | 0.91 | c | 0.91 | d | 0.65 | 0.14 | 0.38 | a | 0.74 | 0.37 | 0.00 | 0.62 | 0.07 | 3.15 | 3.32 | 3.32 | h | |||||||||
1999 | 1.02 | d | 1.23 | j | 0.48 | h | ----- | z | 0.38 | 0.00 | 0.00 | 0.20 | 0.00 | 0.70 | c | 2.20 | g | 0.72 | c | ----- | z | |||||
2000 | 0.93 | g | 1.26 | h | 0.38 | a | 0.22 | 0.22 | 0.24 | a | 0.00 | 0.00 | 0.30 | c | 0.53 | b | 0.44 | 0.48 | 1.26 | v | ||||||
2001 | 0.26 | b | 0.36 | n | 0.37 | c | 0.46 | 0.18 | 0.42 | a | 0.16 | 0.12 | 0.14 | 0.57 | d | 1.18 | 0.94 | a | 1.18 | y | ||||||
2002 | 0.88 | 0.62 | a | 0.80 | 0.77 | 0.25 | a | 0.24 | 0.02 | 0.14 | 0.01 | a | 0.39 | 0.45 | a | 0.75 | 0.88 | d | ||||||||
2003 | 3.16 | w | 1.04 | d | 0.85 | b | 0.63 | 0.23 | 0.00 | 0.00 | 0.16 | 0.10 | 0.31 | 0.45 | 1.35 | f | ----- | z | ||||||||
2004 | 0.46 | b | 0.48 | 0.48 | 0.45 | 0.38 | 1.40 | 0.44 | 0.64 | 0.38 | 0.32 | a | 0.22 | 1.16 | 1.40 | c | ||||||||||
2005 | 0.53 | a | 0.16 | 1.56 | 0.25 | a | 0.39 | a | 0.15 | 0.04 | 0.06 | 0.36 | 0.50 | p | 0.85 | 1.40 | p | ----- | z | |||||||
2006 | 1.37 | a | 0.63 | b | 0.63 | 0.47 | 0.30 | 0.98 | 0.03 | 0.00 | 0.12 | 0.30 | a | 1.72 | f | 1.34 | q | ----- | z | |||||||
2007 | 1.04 | a | 0.56 | 0.58 | 0.36 | 0.19 | 0.18 | e | 0.00 | 0.29 | 0.59 | 1.05 | 0.75 | 1.70 | 1.70 | f | ||||||||||
2008 | 0.98 | 0.97 | 0.35 | 0.06 | 0.59 | 0.16 | 0.14 | 0.27 | 0.30 | d | 0.72 | 0.64 | a | 0.61 | a | 0.98 | f | |||||||||
2009 | 1.83 | 0.76 | 0.97 | 0.26 | 1.02 | 0.41 | 0.07 | 0.08 | a | 0.26 | 1.37 | b | 0.68 | 0.70 | 1.83 | c | ||||||||||
2010 | 0.96 | b | 0.47 | a | 0.54 | a | 0.57 | 0.50 | 0.57 | 0.04 | 0.00 | 0.48 | 0.98 | 0.85 | d | 1.64 | e | 1.64 | m | |||||||
2011 | 1.38 | g | 0.23 | d | 0.81 | 0.72 | c | 1.10 | c | 0.34 | c | 0.33 | c | 0.00 | e | 0.02 | b | 0.63 | a | 0.93 | n | 1.62 | f | ----- | z | |
2012 | 1.26 | m | 0.32 | g | 2.08 | f | 0.28 | g | 0.31 | b | 0.70 | b | 0.11 | a | 0.00 | a | 0.02 | d | ----- | z | 0.14 | v | 1.07 | q | ----- | z |
2013 | 0.47 | r | ----- | z | ----- | z | 0.00 | u | 0.61 | h | 0.34 | d | 0.00 | g | 0.41 | g | 0.93 | h | 0.75 | j | 0.68 | n | ----- | z | ----- | z |
2014 | ----- | z | ----- | z | ----- | z | ----- | z | 0.53 | j | 0.12 | j | 0.02 | o | 0.02 | j | 0.00 | u | ----- | z | ----- | z | ----- | z | ----- | z |
2015 | 1.62 | c | 0.81 | i | 0.67 | q | 0.03 | y | 0.29 | d | 0.03 | c | 0.07 | a | 0.07 | d | 0.02 | x | 0.10 | o | 0.92 | n | 0.98 | k | ----- | z |
2016 | 1.75 | k | 0.70 | g | 0.72 | j | 0.13 | m | 0.26 | g | 0.04 | 0.06 | g | 0.01 | e | 0.05 | k | 1.00 | 0.99 | i | 0.75 | j | ----- | z | ||
2017 | 0.65 | d | 0.80 | g | 0.63 | n | 0.48 | i | 0.35 | d | 0.57 | b | 0.00 | a | 0.04 | k | 0.17 | k | 1.93 | f | 1.27 | o | 1.09 | s | ----- | z |
2018 | 1.62 | v | 0.23 | u | 1.08 | n | 0.91 | e | 0.21 | i | 0.12 | k | 0.00 | n | 0.00 | m | 0.01 | k | 0.59 | j | 0.83 | h | 2.64 | m | ----- | z |
2019 | 1.59 | o | 0.77 | i | 0.24 | b | 1.11 | a | 1.03 | d | 0.58 | g | 0.08 | f | 1.37 | n | 0.30 | p | 0.57 | i | 0.29 | t | 0.88 | o | ----- | z |
2020 | 1.01 | j | 0.46 | n | 0.42 | c | 0.13 | n | 0.68 | m | 0.43 | f | 0.00 | o | 0.00 | v | 0.30 | s | 0.50 | k | 1.26 | p | 0.75 | o | ----- | z |
2021 | 0.69 | o | 0.57 | n | 0.04 | s | 0.03 | t | 0.21 | p | 0.16 | a | 0.00 | i | 0.10 | l | 0.33 | 0.78 | 1.60 | i | 1.40 | i | ----- | z | ||
2022 | 0.83 | h | ----- | z | 0.24 | h | 1.17 | i | 0.65 | n | 0.41 | k | 0.30 | i | 0.05 | j | 0.20 | 0.56 | l | 2.20 | m | 1.79 | k | ----- | z | |
2023 | 0.48 | j | 0.56 | i | 0.53 | j | 0.70 | g | 0.55 | l | 0.30 | k | 0.06 | m | 0.12 | f | 1.17 | e | 0.49 | i | ----- | z | 1.57 | w | ----- | z |
2024 | 2.48 | v | ----- | z | 0.76 | t | 0.09 | m | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 1.00 | 0.96 | 0.67 | 0.45 | 0.48 | 0.42 | 0.18 | 0.23 | 0.34 | 0.59 | 0.87 | 1.12 | 1.56 | |||||||||||||
S.D. | 0.59 | 0.86 | 0.48 | 0.28 | 0.45 | 0.41 | 0.22 | 0.29 | 0.32 | 0.39 | 0.63 | 0.77 | 0.77 | |||||||||||||
SKEW | 1.78 | 2.96 | 2.73 | 0.62 | 2.25 | 1.67 | 1.17 | 1.26 | 1.07 | 0.66 | 1.79 | 1.87 | 1.12 | |||||||||||||
MAX | 3.34 | 4.70 | 2.83 | 1.11 | 2.20 | 2.00 | 0.78 | 0.91 | 1.33 | 1.73 | 3.15 | 3.32 | 3.34 | |||||||||||||
MIN | 0.19 | 0.16 | 0.14 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 | 0.16 | 0.76 | |||||||||||||
YRS | 36 | 36 | 39 | 42 | 43 | 47 | 46 | 44 | 46 | 41 | 35 | 32 | 17 |