YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.27 | 0.40 | 0.82 | 0.55 | 1.32 | 1.36 | ----- | z | ||||||
1949 | 0.93 | 1.46 | a | 0.81 | 0.37 | 1.61 | 0.70 | a | 0.00 | 0.04 | 0.80 | 0.78 | 1.46 | 1.09 | 1.61 | b | ||||||||||
1950 | 1.58 | 0.52 | 0.92 | 0.51 | 0.51 | 0.43 | a | 0.13 | 0.50 | 0.37 | 3.97 | 2.38 | 0.90 | 3.97 | a | |||||||||||
1951 | 1.96 | 1.15 | 1.22 | 0.46 | a | 0.49 | 0.00 | 0.03 | 0.23 | 0.25 | 1.80 | 1.39 | 1.26 | 1.96 | a | |||||||||||
1952 | 1.07 | 0.78 | 2.10 | 0.64 | 0.50 | 1.42 | 0.00 | 0.04 | 0.92 | 0.33 | 0.40 | 1.66 | 2.10 | |||||||||||||
1953 | 1.52 | 1.28 | 1.02 | 0.91 | a | 0.76 | a | 0.47 | 0.02 | 0.58 | 0.42 | 1.03 | 2.84 | 1.63 | 2.84 | b | ||||||||||
1954 | 1.54 | 0.75 | a | 0.68 | 0.76 | 0.42 | 0.58 | 0.16 | 0.50 | 0.41 | a | 0.68 | 0.47 | 1.26 | 1.54 | b | ||||||||||
1955 | 0.60 | 0.42 | 1.04 | 0.99 | 0.83 | 0.41 | 0.22 | 0.00 | 0.57 | 1.83 | 2.07 | 2.42 | 2.42 | |||||||||||||
1956 | 2.10 | 2.07 | 1.36 | 0.78 | 0.70 | 0.73 | 0.00 | 0.57 | 0.22 | 1.97 | 0.75 | 1.50 | 2.10 | |||||||||||||
1957 | 0.60 | 1.43 | 1.52 | 0.76 | 1.46 | 0.22 | 0.26 | 0.30 | a | 0.81 | 1.11 | 0.73 | 1.88 | 1.88 | a | |||||||||||
1958 | 1.19 | 2.19 | 0.45 | 0.58 | 0.49 | 0.51 | 0.20 | 0.21 | 0.43 | 1.20 | 1.98 | 0.71 | 2.19 | |||||||||||||
1959 | 1.45 | 1.98 | 0.70 | 0.47 | 0.60 | 0.71 | 0.14 | 0.00 | 0.60 | 1.06 | 0.59 | 1.05 | 1.98 | |||||||||||||
1960 | 1.19 | 1.09 | 1.42 | 0.94 | 1.06 | 0.18 | 0.00 | 0.22 | 0.31 | 0.66 | a | 2.94 | 1.07 | 2.94 | a | |||||||||||
1961 | 1.21 | 4.10 | 1.22 | 0.55 | 0.51 | 0.40 | 0.24 | 0.08 | 1.18 | 1.15 | 4.50 | 1.00 | 4.50 | |||||||||||||
1962 | 0.44 | 0.60 | 1.16 | 0.60 | 0.51 | 0.72 | 0.01 | 0.50 | 0.51 | 1.05 | 1.92 | 1.53 | 1.92 | |||||||||||||
1963 | 0.39 | 1.03 | 1.65 | 1.00 | 1.62 | 1.08 | 0.30 | 0.02 | 0.90 | 1.10 | 1.55 | 0.73 | 1.65 | |||||||||||||
1964 | 2.71 | 0.47 | 0.80 | 0.48 | 0.49 | 1.15 | 0.32 | 0.38 | 0.54 | 0.39 | 1.44 | 2.60 | 2.71 | |||||||||||||
1965 | 0.90 | 0.73 | 0.47 | 1.47 | 0.43 | 0.25 | 0.16 | 0.62 | 0.17 | 1.00 | 0.90 | 1.49 | 1.49 | |||||||||||||
1966 | 2.10 | 0.57 | 1.81 | 0.66 | 0.48 | 0.43 | 0.63 | 0.03 | 1.17 | 0.77 | 2.18 | 1.86 | 2.18 | |||||||||||||
1967 | 1.17 | 0.57 | 0.84 | 0.94 | 0.88 | 1.45 | 0.00 | 0.00 | 1.02 | 0.98 | 0.64 | 1.57 | 1.57 | |||||||||||||
1968 | 1.00 | 0.93 | 0.65 | 0.52 | 1.05 | 0.49 | 0.24 | 1.57 | 0.79 | 1.10 | 1.25 | 1.26 | 1.57 | |||||||||||||
1969 | 1.59 | 1.27 | 1.04 | 0.60 | 1.15 | 0.80 | 0.10 | 0.00 | 1.14 | 1.04 | 1.78 | 2.86 | 2.86 | |||||||||||||
1970 | 1.42 | 0.55 | 0.52 | 0.82 | 0.45 | 0.29 | 0.02 | 0.02 | 0.46 | 1.40 | 1.34 | 1.62 | 1.62 | |||||||||||||
1971 | 1.71 | 0.97 | 1.12 | 0.86 | 1.06 | 1.03 | 0.06 | 0.39 | 1.12 | 0.70 | 1.46 | 1.03 | 1.71 | |||||||||||||
1972 | 1.98 | 0.93 | 1.63 | 0.66 | 1.04 | 0.94 | 0.06 | 0.52 | 0.89 | 0.51 | 0.69 | 0.90 | 1.98 | |||||||||||||
1973 | 0.90 | 0.31 | 0.74 | 0.58 | 0.56 | 0.50 | 0.02 | 0.36 | 0.69 | 0.53 | 1.90 | 1.51 | 1.90 | |||||||||||||
1974 | 2.07 | 0.87 | 1.13 | 0.64 | 0.38 | 0.53 | 0.15 | 0.27 | 0.09 | 1.13 | 1.17 | 1.55 | 2.07 | |||||||||||||
1975 | 1.06 | 1.35 | 1.36 | 0.75 | 0.72 | 0.48 | 0.32 | 0.91 | 0.03 | 0.84 | 1.12 | 1.75 | 1.75 | |||||||||||||
1976 | 2.67 | 0.90 | 0.94 | 0.60 | 0.49 | 0.32 | 0.29 | 0.91 | 0.49 | 1.16 | 1.01 | 0.75 | 2.67 | |||||||||||||
1977 | 0.39 | 0.72 | 0.76 | 0.66 | 0.56 | 0.26 | 0.03 | 1.52 | 0.66 | 0.72 | 1.51 | 1.91 | 1.91 | |||||||||||||
1978 | 0.67 | 1.88 | 0.49 | 0.88 | 0.50 | 0.53 | 0.38 | 0.85 | 0.97 | 0.42 | 1.10 | 0.93 | 1.88 | |||||||||||||
1979 | 1.85 | 1.15 | 0.74 | 1.05 | 1.00 | 0.70 | 0.20 | 0.44 | 0.84 | 1.38 | 0.95 | 1.03 | 1.85 | |||||||||||||
1980 | 2.21 | 0.81 | 1.07 | 1.23 | 0.54 | 0.31 | 0.28 | 0.02 | 0.33 | 0.59 | 1.21 | 2.53 | 2.53 | |||||||||||||
1981 | 0.60 | 0.73 | 0.86 | 0.79 | 0.87 | 1.05 | 0.19 | 0.00 | 2.18 | 0.85 | 1.50 | 4.40 | 4.40 | |||||||||||||
1982 | 2.38 | 1.46 | 0.76 | 0.85 | 0.36 | 0.65 | 0.27 | 0.47 | 0.78 | 2.58 | 0.89 | 1.39 | 2.58 | |||||||||||||
1983 | 0.62 | 1.95 | 1.70 | 0.82 | 0.49 | 0.65 | 1.07 | 0.97 | 0.57 | 0.99 | 1.16 | 0.71 | 1.95 | |||||||||||||
1984 | 0.44 | 3.52 | 0.92 | 1.49 | 0.76 | 0.78 | 0.10 | 0.17 | 0.45 | 0.89 | 1.97 | 0.84 | 3.52 | |||||||||||||
1985 | 0.24 | 0.95 | 0.96 | 0.90 | 0.91 | 0.87 | 0.18 | 0.77 | 0.69 | 1.12 | 0.83 | 0.78 | 1.12 | |||||||||||||
1986 | 1.03 | 1.86 | 0.99 | 0.54 | 0.84 | 0.51 | 0.49 | 0.00 | 1.55 | 0.84 | 1.88 | 0.47 | 1.88 | |||||||||||||
1987 | 1.05 | 1.03 | 0.52 | 0.47 | 0.53 | 0.23 | 2.48 | 0.30 | 0.12 | 0.07 | 1.32 | 1.52 | 2.48 | |||||||||||||
1988 | 2.02 | 0.57 | 1.12 | 1.04 | 0.70 | 0.98 | 0.17 | 0.02 | 0.62 | 0.21 | 1.98 | 0.71 | 2.02 | |||||||||||||
1989 | 2.01 | 0.51 | 0.86 | 0.79 | 0.55 | 0.47 | 0.46 | a | 0.69 | 0.27 | 1.03 | 1.09 | 0.63 | 2.01 | a | |||||||||||
1990 | 1.58 | 0.77 | 0.60 | 1.26 | 0.78 | 0.30 | 0.54 | 0.77 | 0.19 | 1.77 | 1.19 | 1.33 | 1.77 | |||||||||||||
1991 | 1.01 | 1.01 | 1.04 | 0.54 | 2.24 | 0.57 | 0.20 | b | 0.24 | 0.13 | 1.47 | 1.52 | 1.16 | 2.24 | b | |||||||||||
1992 | 0.71 | 0.83 | 0.49 | 2.38 | 0.72 | 0.87 | 0.39 | 0.08 | 0.61 | 0.78 | 1.59 | d | 1.58 | b | 2.38 | f | ||||||||||
1993 | 1.07 | 2.49 | d | 1.42 | g | 0.85 | j | 0.69 | d | 0.60 | t | 0.90 | 0.35 | d | 0.00 | 0.40 | 0.45 | 1.36 | a | ----- | z | |||||
1994 | 1.20 | f | 0.76 | c | 1.74 | a | 0.52 | 0.66 | 0.42 | 0.00 | 0.00 | 0.58 | 1.77 | 1.33 | j | 0.50 | 1.77 | t | ||||||||
1995 | 2.15 | 1.29 | 0.84 | 1.27 | 1.05 | 1.17 | 0.32 | 0.27 | 0.52 | 0.89 | 2.23 | d | 2.00 | a | 2.23 | e | ||||||||||
1996 | 1.56 | 1.57 | 1.61 | 1.10 | 1.32 | 1.14 | f | 0.39 | 0.05 | 1.02 | 1.28 | 5.82 | 1.97 | 5.82 | f | |||||||||||
1997 | 1.42 | 0.73 | 1.51 | 0.80 | 1.35 | 0.58 | a | 0.36 | 0.68 | 1.03 | 1.65 | d | 0.82 | 0.93 | 1.65 | e | ||||||||||
1998 | 0.99 | b | 1.57 | 1.10 | 0.90 | 1.65 | 0.58 | 0.01 | 0.00 | 0.30 | 0.58 | 4.53 | b | 2.60 | 4.53 | d | ||||||||||
1999 | 1.49 | 1.30 | 0.71 | 0.44 | 0.67 | 0.46 | 0.05 | 1.08 | 0.00 | 0.81 | 1.39 | 0.75 | 1.49 | |||||||||||||
2000 | 1.90 | 0.76 | 0.60 | 0.98 | 0.49 | 0.37 | 0.14 | 0.00 | 0.54 | 0.85 | 0.61 | 1.37 | 1.90 | |||||||||||||
2001 | 0.65 | 0.52 | 0.70 | 0.45 | 0.89 | 0.39 | 0.49 | 0.52 | 0.32 | 0.98 | 1.05 | 1.28 | 1.28 | |||||||||||||
2002 | 1.38 | 1.04 | 0.99 | 1.50 | 0.70 | 0.48 | 0.00 | 0.30 | 1.10 | 0.55 | 1.45 | 1.10 | 1.50 | |||||||||||||
2003 | 1.11 | 0.75 | 0.88 | 1.14 | 0.32 | 0.05 | 0.00 | 0.35 | 0.86 | 0.39 | 1.00 | 3.20 | 3.20 | |||||||||||||
2004 | 1.50 | 1.02 | 0.52 | 0.62 | 1.78 | 1.04 | 0.09 | 0.69 | 0.60 | a | 1.18 | 0.28 | 1.92 | 1.92 | a | |||||||||||
2005 | 0.35 | 0.97 | b | 0.85 | 0.56 | 1.48 | ----- | z | 0.11 | 0.01 | 0.61 | 0.87 | 1.18 | 1.12 | ----- | z | ||||||||||
2006 | 2.27 | 1.22 | 0.65 | 1.04 | 0.77 | 0.81 | 0.03 | 0.00 | 0.52 | 0.66 | 1.17 | 2.04 | 2.27 | |||||||||||||
2007 | 1.37 | 0.90 | 0.87 | 0.57 | 0.53 | 0.69 | 0.37 | 0.67 | 1.32 | 1.81 | 1.53 | 0.84 | 1.81 | |||||||||||||
2008 | 1.47 | 0.52 | 0.65 | 0.62 | 0.61 | 0.41 | 0.05 | 0.62 | 0.09 | 0.78 | 1.03 | 1.01 | 1.47 | |||||||||||||
2009 | 1.08 | 0.99 | 1.08 | 0.70 | 0.69 | 0.98 | 0.59 | 0.08 | 0.57 | 0.98 | 0.98 | 1.53 | 1.53 | |||||||||||||
2010 | 1.68 | m | 0.79 | t | 2.39 | x | 2.92 | l | 1.08 | r | 1.82 | j | 0.11 | d | 0.33 | e | 0.60 | p | 1.85 | s | 1.90 | s | 1.89 | q | ----- | z |
2011 | 3.14 | j | 2.38 | j | 1.65 | k | 3.56 | r | 0.78 | n | 2.95 | n | 1.33 | n | 0.01 | 0.41 | 0.94 | x | 1.33 | j | 1.08 | l | ----- | z | ||
2012 | 2.08 | l | 1.27 | h | 4.07 | m | 3.30 | j | 1.41 | t | 1.93 | i | 0.16 | k | 0.00 | 0.00 | 2.59 | n | 8.20 | v | 3.65 | k | ----- | z | ||
2013 | 2.38 | k | 1.24 | s | 0.52 | k | 1.82 | l | 1.06 | e | 0.75 | j | 0.00 | m | 0.02 | q | 3.54 | w | ----- | z | 1.23 | o | ----- | z | ----- | z |
2014 | 2.11 | s | 1.20 | 2.74 | j | 0.54 | 1.34 | h | 1.30 | o | 0.03 | k | 0.33 | q | 2.02 | s | 1.80 | q | 4.32 | y | 2.95 | v | ----- | z | ||
2015 | 4.50 | l | 1.12 | 1.30 | i | 1.44 | m | 0.75 | l | 0.16 | 0.01 | f | 0.15 | f | 0.42 | f | 0.66 | q | 2.02 | r | 2.00 | r | ----- | z | ||
2016 | 2.00 | n | 1.80 | n | 2.15 | j | 2.00 | s | 0.89 | k | 2.30 | d | 0.42 | a | 0.00 | 0.43 | l | 2.90 | p | 1.11 | h | 2.50 | o | ----- | z | |
2017 | 1.22 | g | 1.92 | i | 1.80 | o | 0.93 | h | 1.10 | d | 1.34 | g | 0.00 | 0.00 | 1.74 | f | 1.80 | k | 4.92 | w | 1.22 | l | ----- | z | ||
2018 | 1.19 | j | 1.69 | f | 1.57 | p | 1.98 | g | 0.14 | b | 1.44 | a | 0.00 | 0.17 | d | 0.14 | p | 1.00 | f | 1.40 | j | 3.62 | w | ----- | z | |
2019 | 2.78 | x | 1.44 | s | 4.25 | f | 3.40 | d | 0.69 | c | 0.46 | b | 0.11 | f | 0.53 | d | 1.26 | i | 0.70 | n | 0.59 | k | 1.96 | u | ----- | z |
2020 | 3.50 | n | 1.04 | k | 0.71 | k | 1.00 | h | 0.85 | r | 1.14 | h | 0.00 | 0.11 | 0.70 | d | 1.49 | k | 3.50 | l | 1.51 | m | ----- | z | ||
2021 | 2.36 | m | 2.02 | l | 1.29 | j | 0.36 | e | 0.99 | l | 0.78 | e | 0.00 | 0.08 | 1.16 | 1.90 | l | 2.00 | k | 2.37 | r | ----- | z | |||
2022 | 2.28 | n | 0.39 | f | 1.19 | j | 2.55 | q | 2.23 | m | 2.34 | g | 0.43 | d | 0.00 | 0.16 | d | 1.31 | j | 2.83 | i | 2.60 | k | ----- | z | |
2023 | 1.45 | h | 1.06 | k | 1.41 | f | 1.06 | c | 0.37 | i | 0.50 | f | 0.00 | n | 0.02 | j | 0.64 | l | 1.30 | n | 2.84 | o | 3.72 | l | ----- | z |
2024 | 4.94 | p | 2.16 | j | 2.46 | n | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 1.33 | 1.14 | 0.99 | 0.85 | 0.80 | 0.64 | 0.24 | 0.34 | 0.62 | 1.03 | 1.50 | 1.44 | 2.20 | |||||||||||||
S.D. | 0.61 | 0.68 | 0.38 | 0.47 | 0.40 | 0.39 | 0.35 | 0.36 | 0.41 | 0.60 | 0.98 | 0.70 | 0.78 | |||||||||||||
SKEW | 0.24 | 2.21 | 0.82 | 3.15 | 1.31 | 1.50 | 4.20 | 1.28 | 0.94 | 2.19 | 2.37 | 1.63 | 1.59 | |||||||||||||
MAX | 2.71 | 4.10 | 2.10 | 3.40 | 2.24 | 2.30 | 2.48 | 1.57 | 2.18 | 3.97 | 5.82 | 4.40 | 4.53 | |||||||||||||
MIN | 0.24 | 0.31 | 0.45 | 0.36 | 0.14 | 0.00 | 0.00 | 0.00 | 0.00 | 0.07 | 0.28 | 0.47 | 1.12 | |||||||||||||
YRS | 60 | 63 | 60 | 64 | 65 | 63 | 69 | 72 | 67 | 62 | 61 | 62 | 54 |