YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.13 | ----- | z | |
1959 | 1.34 | 0.76 | 0.27 | 0.10 | 0.76 | 0.49 | 0.00 | 0.47 | 0.54 | 0.25 | 0.01 | 1.34 | 1.34 | |||||||||||||
1960 | 0.55 | 1.05 | 0.36 | 0.32 | 0.10 | 0.31 | 0.02 | 0.42 | 0.12 | 0.97 | 0.51 | 0.17 | 1.05 | |||||||||||||
1961 | 0.09 | 0.32 | 0.22 | 0.58 | 0.62 | 0.21 | 0.54 | 1.00 | 1.30 | 0.62 | 0.18 | 0.25 | 1.30 | |||||||||||||
1962 | 0.75 | 1.02 | 0.63 | 0.42 | 1.72 | 0.28 | 0.67 | 0.27 | 0.42 | 0.38 | 0.21 | 0.71 | 1.72 | |||||||||||||
1963 | 0.96 | 2.32 | 0.40 | 0.89 | 0.61 | 1.78 | 0.01 | 0.80 | 0.50 | 0.20 | 0.56 | 0.24 | 2.32 | |||||||||||||
1964 | 0.38 | 0.08 | 1.24 | 0.44 | 0.78 | 0.26 | 0.17 | 0.29 | 0.00 | 0.93 | 0.38 | 2.79 | 2.79 | |||||||||||||
1965 | 0.36 | 0.14 | 0.12 | 0.51 | 0.43 | 0.64 | 0.10 | 0.88 | 0.07 | 0.05 | 0.81 | 0.86 | 0.88 | |||||||||||||
1966 | 1.12 | 0.56 | 0.42 | 0.19 | 0.53 | 0.15 | 0.33 | 0.22 | 0.07 | 0.45 | 0.34 | 1.33 | 1.33 | |||||||||||||
1967 | 2.16 | 0.27 | 1.11 | 0.51 | 0.17 | 0.58 | 0.49 | 0.00 | 0.17 | 0.61 | 0.79 | 0.76 | 2.16 | |||||||||||||
1968 | 1.05 | 0.32 | 0.28 | 0.20 | 0.68 | 0.99 | 0.01 | 1.30 | ----- | z | 0.02 | 0.50 | 1.65 | ----- | z | |||||||||||
1969 | 2.98 | 0.64 | 0.16 | 0.16 | 0.28 | 0.52 | 0.11 | 0.00 | 0.21 | 0.34 | 0.59 | 0.48 | 2.98 | |||||||||||||
1970 | 0.87 | 0.25 | 0.87 | 0.22 | 0.91 | 0.50 | 0.45 | 0.12 | 0.24 | 0.71 | 1.18 | 0.74 | 1.18 | |||||||||||||
1971 | 0.38 | 0.32 | 0.63 | 0.18 | 1.02 | 0.97 | 0.25 | 0.16 | 1.11 | 0.38 | 0.34 | 0.70 | 1.11 | |||||||||||||
1972 | 0.80 | 0.46 | 0.40 | 0.43 | 0.80 | 0.79 | 0.17 | 0.23 | 0.52 | 0.37 | 0.70 | 0.39 | 0.80 | |||||||||||||
1973 | 0.60 | 0.55 | 0.32 | 0.30 | 0.26 | 0.39 | 0.35 | 0.37 | 0.36 | 0.12 | 1.02 | 0.25 | 1.02 | |||||||||||||
1974 | 0.36 | 0.18 | 0.40 | 0.10 | 0.11 | 0.05 | 0.09 | 0.20 | 0.02 | 0.60 | 0.49 | 0.56 | 0.60 | |||||||||||||
1975 | 0.70 | 0.41 | 0.68 | 0.80 | 0.58 | 0.25 | 0.30 | 0.14 | 0.00 | 0.70 | 0.43 | 0.70 | 0.80 | |||||||||||||
1976 | 0.53 | 0.82 | 0.17 | 0.46 | 0.33 | a | 0.15 | 0.05 | 0.30 | 1.40 | 0.32 | 0.00 | 0.10 | 1.40 | a | |||||||||||
1977 | 0.86 | 0.18 | 0.60 | 0.12 | 0.40 | 0.45 | 0.66 | 0.12 | 0.18 | 0.10 | 0.64 | 0.89 | 0.89 | |||||||||||||
1978 | 0.87 | 0.73 | 0.56 | ----- | z | 0.30 | 0.20 | 0.46 | 0.15 | 1.34 | 0.10 | 0.30 | 0.37 | ----- | z | |||||||||||
1979 | 0.33 | 0.92 | a | 0.52 | 0.08 | 0.32 | 0.35 | 1.02 | 0.65 | 0.16 | 1.80 | 0.37 | a | 0.66 | 1.80 | b | ||||||||||
1980 | 1.73 | 0.89 | 0.27 | ----- | z | 1.12 | 0.27 | 0.82 | 0.35 | 0.85 | 0.24 | 0.50 | 1.20 | ----- | z | |||||||||||
1981 | 2.00 | 0.31 | 0.45 | 2.05 | 0.45 | 0.31 | 0.05 | 0.04 | 0.08 | 0.60 | 0.85 | g | 1.77 | 2.05 | g | |||||||||||
1982 | 0.50 | a | 0.72 | f | 0.84 | q | 1.40 | 0.60 | 1.30 | b | 1.00 | 0.28 | 0.56 | 0.70 | a | 0.63 | m | 0.95 | ----- | z | ||||||
1983 | 0.28 | 0.65 | 0.61 | 0.37 | 0.34 | b | 0.30 | 0.20 | d | 0.60 | a | 1.00 | 0.70 | 0.65 | k | 0.72 | 1.00 | r | ||||||||
1984 | 0.23 | 0.36 | 0.68 | 0.23 | a | 0.20 | c | 0.50 | 0.89 | a | 0.80 | 0.08 | a | 0.43 | j | 0.50 | f | 0.13 | c | 0.89 | y | |||||
1985 | 0.25 | 0.70 | 0.50 | 0.12 | 0.30 | 0.32 | 0.49 | 0.06 | 0.72 | 0.22 | a | 0.50 | 0.65 | a | 0.72 | b | ||||||||||
1986 | 0.33 | 0.54 | 0.48 | a | 0.25 | a | 0.43 | 0.29 | a | 0.77 | 0.80 | 0.51 | b | 0.31 | 0.42 | a | 0.08 | 0.80 | f | |||||||
1987 | 0.45 | b | 0.85 | d | 0.34 | a | 0.16 | 0.76 | a | ----- | z | 1.11 | b | 0.05 | 0.00 | 0.05 | 0.34 | 0.45 | h | ----- | z | |||||
1988 | 0.00 | y | 0.00 | 0.30 | 0.31 | b | ----- | z | 0.04 | b | 0.11 | 0.61 | 0.31 | 0.00 | a | 1.35 | c | 1.04 | m | ----- | z | |||||
1989 | 0.43 | l | 0.54 | 0.95 | a | 0.07 | 0.30 | 0.20 | 0.24 | a | 0.19 | 0.50 | a | 0.72 | f | 0.88 | 0.10 | 0.95 | u | |||||||
1990 | 0.98 | a | 0.56 | e | 0.46 | 0.48 | e | 0.78 | 1.10 | 0.04 | ----- | z | 0.18 | 0.00 | 0.30 | 0.15 | ----- | z | ||||||||
1991 | 0.05 | 0.00 | 1.07 | 0.94 | a | 0.65 | 0.58 | 0.61 | 0.64 | 0.53 | a | 1.44 | 0.20 | 0.18 | p | 1.44 | r | |||||||||
1992 | 0.11 | b | 0.81 | 0.18 | 0.25 | 0.18 | 0.55 | 0.15 | 0.09 | 0.55 | 0.50 | 0.39 | 0.41 | 0.81 | b | |||||||||||
1993 | 0.97 | 0.87 | 0.40 | 0.49 | 0.42 | 1.74 | 0.42 | c | 0.30 | 0.35 | 0.52 | 0.11 | 0.39 | 1.74 | c | |||||||||||
1994 | 0.29 | 0.36 | 0.00 | b | 0.18 | 0.45 | 0.05 | 0.08 | 0.47 | 0.36 | 0.39 | 0.67 | 0.35 | 0.67 | b | |||||||||||
1995 | 0.62 | a | 0.53 | 1.15 | 0.25 | 1.02 | ----- | z | 0.16 | 0.13 | 0.11 | ----- | z | 0.51 | ----- | z | ----- | z | ||||||||
1996 | 0.85 | f | 0.47 | 0.75 | 0.62 | 0.72 | 0.13 | 0.05 | 0.00 | 0.33 | 0.27 | a | 0.77 | a | 0.80 | e | 0.85 | m | ||||||||
1997 | 1.00 | d | 0.02 | 0.02 | 0.27 | a | 0.80 | 0.90 | 0.36 | 0.60 | 0.84 | 0.22 | d | 0.30 | 0.37 | 1.00 | i | |||||||||
1998 | 0.61 | 0.68 | 0.63 | 0.36 | 0.72 | 0.53 | 0.40 | 0.07 | 0.41 | 0.69 | 0.78 | 0.37 | 0.78 | |||||||||||||
1999 | 0.76 | 1.77 | 0.15 | 0.34 | 0.69 | 0.28 | 0.00 | 0.51 | 0.20 | 0.33 | 0.17 | 0.58 | 1.77 | |||||||||||||
2000 | 0.52 | 0.72 | 0.38 | 0.27 | 0.28 | 0.05 | 0.34 | 0.05 | 0.44 | 0.54 | 0.23 | a | 0.49 | 0.72 | a | |||||||||||
2001 | 0.90 | 0.78 | 0.22 | 0.57 | 0.09 | 0.06 | 0.81 | 0.74 | 0.34 | 0.25 | 0.57 | 0.93 | 0.93 | |||||||||||||
2002 | 0.63 | 0.24 | 0.47 | 0.86 | 0.13 | 0.50 | 0.23 | 0.35 | 0.48 | 0.14 | 0.70 | 0.78 | 0.86 | |||||||||||||
2003 | 0.34 | 0.55 | 0.31 | 0.70 | 0.85 | 0.26 | 0.03 | 0.34 | 0.04 | 0.05 | 0.20 | 0.60 | 0.85 | |||||||||||||
2004 | 1.48 | a | 0.49 | 0.02 | 0.19 | a | 0.58 | 0.28 | 0.25 | 0.39 | 0.74 | 1.10 | 0.05 | 0.81 | 1.48 | b | ||||||||||
2005 | 1.25 | 0.10 | i | 1.25 | 0.93 | 0.85 | 0.55 | 0.03 | 0.01 | 0.13 | 0.35 | 0.76 | 1.25 | 1.25 | i | |||||||||||
2006 | 1.08 | 0.40 | 0.40 | 0.64 | 0.01 | b | 0.26 | 0.22 | 0.00 | 0.58 | 0.44 | 0.51 | 0.37 | a | 1.08 | c | ||||||||||
2007 | 0.23 | 0.51 | 0.17 | 0.42 | 0.14 | 0.66 | 0.30 | 0.05 | 0.36 | 0.83 | 0.50 | 0.39 | a | 0.83 | a | |||||||||||
2008 | 0.69 | 0.67 | 0.27 | 0.05 | 0.32 | 0.31 | 0.00 | 0.13 | 0.32 | 0.80 | 0.94 | 1.76 | 1.76 | |||||||||||||
2009 | 0.36 | 0.28 | 0.53 | 0.35 | 0.31 | 0.94 | 0.11 | 0.22 | 0.28 | 0.86 | 0.25 | 0.46 | 0.94 | |||||||||||||
2010 | 1.04 | 0.10 | 0.49 | b | 0.59 | 0.45 | 0.38 | 0.22 | 0.22 | 0.32 | 1.07 | 0.55 | 0.60 | 1.07 | b | |||||||||||
2011 | 0.07 | b | 0.20 | 0.66 | e | 0.25 | 0.42 | 0.57 | 0.10 | 0.21 | 0.06 | 1.30 | 0.20 | 0.30 | 1.30 | g | ||||||||||
2012 | 1.23 | 0.31 | 0.50 | d | 0.29 | 0.40 | 0.18 | 0.32 | 0.48 | 0.14 | 0.36 | 0.83 | 1.07 | 1.23 | d | |||||||||||
2013 | 0.57 | 0.27 | 0.17 | 0.12 | 0.17 | 0.20 | 0.15 | 0.03 | 0.53 | 0.15 | 0.10 | 0.19 | 0.57 | |||||||||||||
2014 | 0.31 | 0.38 | 0.61 | 0.23 | a | 0.07 | 0.19 | 0.60 | 0.59 | 0.77 | 0.12 | 0.39 | 0.70 | 0.77 | a | |||||||||||
2015 | 0.45 | 0.47 | 0.15 | 0.65 | 1.01 | e | 0.03 | 0.24 | 0.26 | 0.73 | 0.37 | 0.42 | 0.75 | 1.01 | e | |||||||||||
2016 | 0.38 | 0.25 | 0.60 | 0.43 | 0.56 | 0.27 | 0.02 | 0.24 | 0.85 | 0.95 | ----- | z | 0.65 | o | ----- | z | ||||||||||
2017 | 1.80 | q | 3.17 | h | 0.30 | c | 0.79 | l | 2.50 | l | 0.04 | c | 0.00 | e | 1.06 | d | 0.93 | l | 0.40 | h | 0.86 | h | 0.12 | j | ----- | z |
2018 | 0.55 | e | 0.38 | e | 1.70 | e | 0.51 | k | 1.59 | c | 0.97 | g | 0.00 | j | 0.22 | e | 0.04 | a | 0.79 | c | 0.54 | m | 0.07 | o | ----- | z |
2019 | ----- | z | 1.30 | k | 3.43 | d | 0.56 | d | 1.55 | f | 0.41 | k | 0.14 | k | 0.02 | k | 0.81 | f | 0.33 | i | 1.88 | q | 0.43 | k | ----- | z |
2020 | 0.75 | i | 0.45 | i | 1.60 | q | 0.45 | w | 0.55 | s | 0.16 | k | 0.10 | 1.10 | k | 0.08 | b | 0.25 | f | 0.50 | o | 0.21 | t | ----- | z | |
2021 | 0.64 | t | 1.28 | j | 0.30 | e | 0.60 | k | 0.28 | n | 0.04 | f | 0.12 | j | 0.60 | p | 0.05 | i | 1.95 | r | 0.30 | o | 0.88 | o | ----- | z |
2022 | 0.47 | p | 0.09 | n | 0.30 | j | 0.39 | j | 1.52 | i | 0.59 | j | 0.00 | 0.04 | j | 0.24 | j | 0.78 | l | 0.62 | j | 1.49 | q | ----- | z | |
2023 | 0.68 | k | 0.15 | i | 2.48 | j | 0.16 | q | 0.56 | l | 0.87 | m | 0.00 | g | 1.40 | f | 0.16 | m | 1.84 | i | 0.28 | i | 0.12 | t | ----- | z |
2024 | 0.29 | h | 0.85 | g | 0.67 | h | 0.46 | j | 0.50 | j | 0.09 | l | 0.01 | 0.53 | d | 0.48 | k | 0.05 | h | 0.36 | j | ----- | z | ----- | z | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.74 | 0.53 | 0.54 | 0.43 | 0.53 | 0.45 | 0.29 | 0.35 | 0.41 | 0.49 | 0.49 | 0.68 | 1.24 | |||||||||||||
S.D. | 0.55 | 0.39 | 0.50 | 0.34 | 0.35 | 0.38 | 0.29 | 0.30 | 0.35 | 0.38 | 0.29 | 0.51 | 0.59 | |||||||||||||
SKEW | 1.75 | 2.11 | 3.49 | 2.34 | 1.12 | 1.74 | 1.12 | 1.07 | 1.08 | 1.11 | 0.68 | 1.75 | 1.36 | |||||||||||||
MAX | 2.98 | 2.32 | 3.43 | 2.05 | 1.72 | 1.78 | 1.11 | 1.30 | 1.40 | 1.80 | 1.35 | 2.79 | 2.98 | |||||||||||||
MIN | 0.05 | 0.00 | 0.00 | 0.05 | 0.01 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.08 | 0.57 | |||||||||||||
YRS | 56 | 57 | 61 | 57 | 58 | 57 | 62 | 60 | 59 | 56 | 53 | 54 | 38 |