YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1977 | ----- | z | ----- | z | ----- | z | ----- | z | 0.35 | e | 0.06 | 0.89 | 0.48 | 0.26 | 0.40 | 0.62 | 0.36 | ----- | z | |||||||
1978 | 0.33 | 0.42 | 0.45 | 0.20 | 0.43 | 0.11 | 0.47 | 0.39 | 0.44 | 0.71 | 0.50 | 0.63 | 0.71 | |||||||||||||
1979 | 0.09 | 0.30 | 0.47 | 0.96 | 1.31 | 0.25 | 0.41 | 0.53 | 0.05 | 1.15 | 0.38 | 0.18 | 1.31 | |||||||||||||
1980 | 0.65 | 0.49 | 0.48 | 0.14 | 0.56 | 0.41 | 0.21 | 0.60 | 0.29 | 0.41 | 0.33 | 0.21 | 0.65 | |||||||||||||
1981 | 0.09 | 0.26 | 0.26 | 0.28 | 1.05 | 0.39 | 0.51 | 0.11 | 0.56 | 0.76 | 0.20 | 0.25 | 1.05 | |||||||||||||
1982 | 0.35 | 0.12 | 0.53 | 0.53 | 0.44 | 0.37 | 0.35 | 0.48 | 0.51 | 0.45 | 0.82 | 0.25 | 0.82 | |||||||||||||
1983 | 0.17 | 0.25 | 0.35 | 1.00 | a | 0.44 | 1.00 | 0.85 | 1.24 | 0.26 | 0.60 | 0.90 | 0.56 | 1.24 | a | |||||||||||
1984 | 0.20 | 0.35 | 0.41 | 0.88 | 0.32 | 0.61 | 0.78 | 0.79 | 0.58 | 0.42 | 0.30 | 0.23 | 0.88 | |||||||||||||
1985 | 0.37 | 0.28 | 0.40 | 0.70 | 0.31 | 0.48 | 0.43 | 0.32 | 0.23 | 1.19 | 0.99 | 0.16 | 1.19 | |||||||||||||
1986 | 0.26 | 1.22 | 0.43 | 0.70 | 0.27 | 0.79 | 0.74 | 0.20 | 0.58 | 0.56 | 0.83 | 0.35 | 1.22 | |||||||||||||
1987 | 0.19 | 0.47 | 0.38 | 0.68 | 0.43 | 0.74 | 1.00 | 0.46 | 0.21 | 0.58 | 0.47 | 0.70 | 1.00 | |||||||||||||
1988 | 0.26 | 0.17 | 0.21 | 0.18 | 0.55 | 0.53 | 0.12 | 0.37 | 0.88 | 0.09 | 0.50 | 0.24 | 0.88 | |||||||||||||
1989 | 0.21 | 0.54 | 0.40 | 0.15 | 0.13 | 0.30 | 0.75 | 0.42 | 0.52 | 0.12 | 0.35 | 0.30 | 0.75 | |||||||||||||
1990 | 0.11 | 0.47 | 0.37 | 0.64 | 0.80 | 0.70 | 0.22 | 0.42 | 0.23 | 0.85 | 0.35 | 0.43 | 0.85 | |||||||||||||
1991 | 0.30 | 0.23 | 0.53 | 0.20 | 0.12 | 0.65 | 0.43 | 0.38 | 0.39 | 0.37 | 0.60 | 0.28 | 0.65 | |||||||||||||
1992 | 0.18 | 0.30 | 0.58 | a | 0.67 | 0.66 | 0.25 | 1.04 | 0.20 | 0.33 | 0.68 | 0.25 | 0.46 | 1.04 | a | |||||||||||
1993 | 0.54 | 0.25 | 0.57 | 1.07 | a | 0.26 | 0.18 | 0.30 | 0.53 | 0.69 | 0.72 | a | 0.50 | 0.25 | 1.07 | b | ||||||||||
1994 | 0.20 | 0.46 | a | 0.40 | 0.38 | b | 0.03 | b | 0.27 | a | 0.01 | 0.85 | c | 0.53 | d | 0.31 | c | 0.65 | f | 0.25 | 0.85 | v | ||||
1995 | 0.60 | d | 0.41 | a | 0.51 | c | 0.41 | d | ----- | z | 0.65 | c | 0.30 | a | 0.29 | b | 0.92 | b | 0.80 | b | 0.69 | c | 0.37 | ----- | z | |
1996 | 0.50 | b | 0.44 | e | 0.24 | c | 0.64 | b | 0.63 | c | 0.47 | b | 0.36 | d | 0.17 | b | 0.40 | c | 0.81 | c | 0.84 | d | 0.31 | f | ----- | z |
1997 | 0.72 | c | 0.19 | d | 0.08 | c | 0.91 | c | 0.73 | b | 0.31 | c | 0.56 | b | 0.41 | b | 2.18 | c | 0.69 | b | 0.25 | d | 0.20 | b | ----- | z |
1998 | 0.20 | f | 0.29 | d | 0.78 | c | 0.20 | d | 0.34 | c | 0.99 | c | 0.65 | b | 0.09 | c | 0.45 | c | 1.28 | c | 0.37 | b | 0.63 | b | ----- | z |
1999 | 0.42 | d | 0.52 | d | 0.23 | b | 1.14 | d | 0.49 | e | 0.33 | a | 0.44 | f | 0.42 | b | 0.27 | d | 0.57 | 0.33 | d | 0.14 | d | ----- | z | |
2000 | 0.33 | b | 0.74 | a | 0.38 | b | 0.49 | d | 0.25 | c | 0.22 | b | 0.79 | 0.41 | f | 1.46 | i | 0.44 | 0.50 | h | 0.65 | h | ----- | z | ||
2001 | 0.38 | f | 0.41 | e | 0.47 | f | 0.62 | h | 1.26 | g | 0.40 | 0.47 | b | 0.40 | b | 0.40 | d | 0.61 | 0.74 | 0.20 | ----- | z | ||||
2002 | 0.41 | 0.10 | c | 0.46 | d | 0.40 | 0.06 | 0.24 | 0.35 | 0.59 | a | 0.45 | 0.45 | 0.35 | a | 0.40 | 0.59 | i | ||||||||
2003 | 0.24 | 0.33 | c | 0.52 | b | 0.79 | 0.34 | a | 0.72 | 0.11 | 0.61 | 0.58 | 0.16 | a | 0.88 | 0.52 | a | 0.88 | h | |||||||
2004 | 0.43 | 0.50 | a | 0.41 | 0.47 | 0.41 | 0.60 | 0.39 | 0.34 | c | 0.82 | a | 0.43 | 1.00 | a | 0.04 | a | 1.00 | g | |||||||
2005 | 0.66 | 0.40 | 0.74 | a | 0.77 | 0.80 | 0.99 | 0.50 | 0.30 | 0.53 | 1.17 | 0.40 | 0.20 | 1.17 | a | |||||||||||
2006 | 0.21 | 0.24 | 0.75 | 0.30 | 0.28 | 0.24 | 0.36 | 0.58 | 2.34 | a | 0.78 | a | 0.31 | 0.44 | 2.34 | b | ||||||||||
2007 | 0.65 | 0.47 | 0.33 | 0.28 | 0.56 | 0.17 | 0.38 | 0.34 | 1.96 | 0.64 | 0.15 | 1.45 | 1.96 | |||||||||||||
2008 | 0.55 | 0.42 | 0.62 | 0.29 | 0.57 | b | 0.55 | 0.18 | 0.60 | 0.67 | 0.65 | 0.43 | 0.45 | 0.67 | b | |||||||||||
2009 | 0.84 | 0.16 | 0.45 | i | 0.89 | 0.95 | 0.51 | 0.52 | 0.74 | 0.60 | 0.40 | 0.76 | 0.49 | 0.95 | i | |||||||||||
2010 | 0.26 | d | 0.06 | f | 0.30 | h | 1.16 | d | 0.17 | h | 1.11 | h | 0.70 | j | 0.29 | j | 0.35 | p | 1.15 | m | 0.30 | k | 1.28 | n | ----- | z |
2011 | 0.52 | e | 0.38 | e | 0.52 | d | 0.86 | f | 0.80 | f | 0.40 | d | 0.47 | f | 0.62 | d | 0.22 | h | 0.46 | j | 0.55 | k | 0.14 | h | ----- | z |
2012 | 0.14 | g | 0.26 | f | 0.27 | h | 0.28 | g | 0.06 | h | 0.13 | f | 0.35 | e | 0.23 | f | 0.54 | j | 0.45 | k | 0.45 | h | 0.70 | i | ----- | z |
2013 | 0.43 | f | 0.31 | e | 0.23 | h | 0.89 | d | 0.46 | g | 0.00 | e | 0.20 | f | 0.17 | e | 0.92 | i | 0.81 | e | 0.33 | g | 1.06 | g | ----- | z |
2014 | 0.45 | f | 0.16 | f | 0.47 | f | 0.29 | e | 1.70 | e | 0.44 | e | 0.30 | f | 1.24 | e | 1.06 | e | 0.46 | e | 0.46 | j | 0.61 | i | ----- | z |
2015 | 0.31 | f | 0.28 | g | 0.46 | e | 0.83 | h | 0.90 | i | 0.11 | f | 0.57 | e | 0.34 | e | 0.32 | e | 0.52 | e | 0.57 | i | 0.56 | g | ----- | z |
2016 | 0.23 | g | 0.61 | e | 0.50 | e | 1.26 | d | 0.94 | f | 0.08 | d | 0.92 | f | 0.27 | e | 0.68 | f | 0.20 | e | 0.26 | h | 0.54 | i | ----- | z |
2017 | 1.02 | f | 0.70 | f | 0.24 | d | 1.35 | f | 0.70 | f | 0.21 | g | 0.58 | j | 0.11 | f | 1.16 | e | 1.88 | d | 0.54 | g | 0.38 | j | ----- | z |
2018 | 0.55 | f | 0.53 | e | 0.45 | g | 1.06 | f | 0.40 | e | 0.10 | f | 0.18 | e | 0.40 | f | 0.13 | f | 1.23 | d | 0.30 | f | 0.45 | j | ----- | z |
2019 | 0.74 | e | 0.32 | h | 0.88 | e | 0.66 | f | 0.54 | e | 1.21 | e | 0.15 | i | 0.29 | e | 0.30 | g | 0.48 | d | 0.77 | f | 0.57 | j | ----- | z |
2020 | 0.28 | d | 0.37 | e | 0.48 | e | 0.33 | d | 0.37 | g | 0.52 | d | 0.42 | e | 0.40 | i | 0.26 | g | 0.60 | d | 0.19 | j | 0.58 | f | ----- | z |
2021 | 0.26 | f | 0.36 | e | 0.40 | g | 0.27 | g | 0.43 | i | 0.18 | d | 0.14 | i | 0.31 | h | 0.39 | f | 0.47 | i | 0.58 | m | 0.92 | l | ----- | z |
2022 | 0.75 | i | 0.42 | g | 0.46 | h | 0.55 | i | 0.96 | j | 0.27 | i | 0.30 | m | 0.41 | t | 1.02 | i | 1.03 | b | 0.60 | n | 0.78 | l | ----- | z |
2023 | 1.15 | j | 0.28 | i | 0.43 | i | 0.38 | m | 0.28 | g | 0.47 | f | 0.20 | k | 0.39 | h | 0.26 | f | 0.70 | l | 0.46 | h | 0.64 | l | ----- | z |
2024 | 0.48 | f | 1.02 | g | 1.05 | g | 0.24 | u | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.38 | 0.39 | 0.45 | 0.59 | 0.51 | 0.46 | 0.47 | 0.46 | 0.65 | 0.65 | 0.53 | 0.37 | 1.07 | |||||||||||||
S.D. | 0.21 | 0.20 | 0.17 | 0.33 | 0.35 | 0.28 | 0.25 | 0.26 | 0.53 | 0.35 | 0.25 | 0.26 | 0.43 | |||||||||||||
SKEW | 0.54 | 2.00 | 0.38 | 0.33 | 1.50 | 0.70 | 0.50 | 1.37 | 2.02 | 1.15 | 0.45 | 2.46 | 1.67 | |||||||||||||
MAX | 0.84 | 1.22 | 0.88 | 1.26 | 1.70 | 1.21 | 1.04 | 1.24 | 2.34 | 1.88 | 1.00 | 1.45 | 2.34 | |||||||||||||
MIN | 0.09 | 0.10 | 0.08 | 0.14 | 0.03 | 0.00 | 0.01 | 0.09 | 0.05 | 0.09 | 0.15 | 0.04 | 0.65 | |||||||||||||
YRS | 34 | 38 | 36 | 36 | 34 | 40 | 36 | 38 | 35 | 42 | 31 | 31 | 20 |