YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | o | 1.01 | 0.00 | 2.07 | 1.47 | 1.33 | ----- | z | |||||
1944 | 0.50 | 0.55 | 0.35 | 0.63 | 0.40 | 0.26 | 0.00 | 0.00 | 0.90 | 0.67 | 1.80 | 0.62 | 1.80 | |||||||||||||
1945 | 0.85 | 1.25 | 0.94 | 0.78 | 0.60 | 0.28 | 0.08 | 0.47 | 0.37 | 0.39 | 1.63 | 2.62 | a | 2.62 | a | |||||||||||
1946 | 1.07 | 1.28 | 1.03 | 0.25 | 0.49 | 0.25 | 0.35 | 0.01 | 1.09 | 0.99 | 1.82 | 1.29 | 1.82 | |||||||||||||
1947 | 0.91 | 1.33 | 0.90 | 0.33 | a | 0.06 | 0.38 | 0.97 | 0.34 | 0.42 | 2.85 | 1.39 | a | 0.57 | 2.85 | b | ||||||||||
1948 | 2.87 | 1.32 | 1.01 | 0.40 | 0.63 | 0.36 | a | 0.35 | 0.10 | 1.00 | 0.84 | 0.96 | 1.56 | 2.87 | a | |||||||||||
1949 | 1.33 | 2.53 | 0.32 | 0.14 | 1.09 | 0.44 | 0.03 | 0.06 | 0.20 | 0.53 | 1.46 | 1.04 | 2.53 | |||||||||||||
1950 | 1.55 | 1.08 | 1.27 | 0.42 | 0.21 | 0.40 | 0.08 | 0.34 | 0.38 | 2.15 | 2.37 | a | 0.63 | 2.37 | a | |||||||||||
1951 | 1.78 | 1.55 | 0.53 | 0.25 | 0.65 | 0.01 | 0.00 | 0.50 | 0.34 | 1.61 | 1.47 | 1.40 | 1.78 | |||||||||||||
1952 | 1.06 | 0.66 | a | 0.44 | a | 0.42 | 0.09 | a | 1.62 | 0.00 | 0.06 | 0.45 | 0.17 | 0.92 | 0.90 | 1.62 | c | |||||||||
1953 | 1.42 | a | 1.10 | 0.66 | 0.70 | 0.68 | 0.44 | a | 0.00 | 0.49 | 0.20 | 1.01 | 1.88 | 1.67 | 1.88 | b | ||||||||||
1954 | 2.71 | 1.13 | 0.95 | 0.83 | 0.19 | 0.35 | 0.06 | 0.20 | 0.28 | 0.47 | 1.64 | 0.74 | 2.71 | |||||||||||||
1955 | 0.63 | 0.35 | 0.49 | 0.97 | 0.24 | 0.36 | 0.18 | 0.01 | 0.31 | 2.12 | 1.82 | 3.04 | 3.04 | |||||||||||||
1956 | 1.69 | 1.59 | a | 0.86 | 0.40 | 0.78 | 0.37 | 0.02 | b | 0.65 | 0.41 | 1.05 | 0.68 | 0.94 | 1.69 | c | ||||||||||
1957 | 0.58 | 1.38 | 1.54 | 0.47 | 0.56 | 0.36 | 0.17 | 0.14 | 0.95 | 0.73 | 0.65 | 2.70 | 2.70 | |||||||||||||
1958 | 1.61 | 2.06 | 0.47 | 0.36 | 0.33 | 0.71 | 0.12 | 0.00 | 0.83 | 0.86 | 1.78 | 0.97 | 2.06 | |||||||||||||
1959 | 2.37 | 2.57 | 0.68 | 0.21 | 0.26 | 0.47 | 0.09 | 0.03 | 0.23 | 0.51 | 0.57 | 0.63 | 2.57 | |||||||||||||
1960 | 1.01 | 1.27 | 1.24 | 0.51 | 0.93 | 0.02 | 0.01 | 0.16 | 0.42 | 0.35 | 2.78 | 0.92 | 2.78 | |||||||||||||
1961 | 1.47 | 2.82 | 1.02 | 0.25 | 0.39 | 0.16 | 0.13 | 0.05 | 0.52 | 1.15 | 2.26 | 1.37 | 2.82 | |||||||||||||
1962 | 0.28 | 0.81 | 1.35 | 0.86 | 0.52 | 0.27 | 0.00 | 0.21 | 0.70 | 1.46 | 1.97 | 0.86 | 1.97 | |||||||||||||
1963 | 0.51 | 1.70 | 1.19 | 0.71 | 1.26 | 0.32 | 0.15 | 0.03 | 0.96 | 0.68 | 1.85 | 0.63 | 1.85 | |||||||||||||
1964 | 1.95 | 0.39 | 0.80 | 0.38 | 0.23 | 0.22 | 0.10 | 0.10 | 0.27 | 0.25 | 1.40 | 2.06 | 2.06 | |||||||||||||
1965 | 1.44 | 0.76 | 0.50 | 1.10 | 0.35 | 0.19 | 0.13 | 0.26 | 0.01 | 0.94 | 1.25 | 1.91 | 1.91 | |||||||||||||
1966 | 2.04 | 0.36 | 1.15 | 0.23 | 0.31 | 0.31 | 0.18 | 0.08 | 0.48 | 0.77 | 1.93 | 1.27 | 2.04 | |||||||||||||
1967 | 1.52 | 0.61 | 0.60 | 0.38 | 0.36 | 0.21 | 0.00 | 0.00 | 0.43 | 1.39 | 1.05 | 1.08 | 1.52 | |||||||||||||
1968 | 1.11 | 1.01 | 0.66 | 0.25 | 0.82 | 0.11 | 0.03 | 1.25 | 0.54 | 1.21 | 0.90 | 2.14 | 2.14 | |||||||||||||
1969 | 1.77 | 1.18 | 1.03 | 0.39 | 0.90 | 0.46 | 0.00 | 0.00 | 0.61 | 0.86 | 1.35 | 2.03 | 2.03 | |||||||||||||
1970 | 1.49 | 0.83 | 0.62 | 0.61 | 0.26 | 0.24 | 0.06 | 0.01 | 0.22 | 0.57 | 1.09 | 1.32 | 1.49 | |||||||||||||
1971 | 1.55 | 0.65 | 1.06 | 1.40 | 0.58 | 1.03 | 0.01 | 0.37 | 1.10 | 1.00 | 1.69 | 0.99 | 1.69 | |||||||||||||
1972 | 2.04 | 0.77 | 1.29 | 0.95 | 1.82 | 0.55 | 0.02 | 0.70 | 0.96 | 0.40 | 0.54 | 1.35 | 2.04 | |||||||||||||
1973 | 1.03 | 0.65 | 0.76 | 0.66 | 0.22 | 0.53 | 0.00 | 0.33 | 0.35 | 0.56 | 2.03 | 1.73 | 2.03 | |||||||||||||
1974 | 3.12 | 1.22 | 1.30 | 0.41 | 0.27 | 0.20 | 0.26 | 0.20 | 0.02 | 0.43 | 1.64 | 1.75 | 3.12 | |||||||||||||
1975 | 1.36 | 1.10 | 0.92 | 0.55 | 0.77 | 0.27 | 0.48 | 0.59 | 0.00 | 0.81 | 0.96 | 2.15 | 2.15 | |||||||||||||
1976 | 2.44 | 1.40 | 0.95 | 0.34 | 0.20 | 0.03 | 0.21 | 0.62 | 0.51 | 0.80 | 0.43 | 0.37 | 2.44 | |||||||||||||
1977 | 0.31 | 0.77 | 0.78 | 0.26 | 0.76 | 0.48 | 0.00 | 1.03 | 0.50 | 0.74 | 1.65 | 1.37 | 1.65 | |||||||||||||
1978 | 1.63 | 0.54 | 0.32 | 0.66 | 0.39 | 0.18 | 0.32 | 0.55 | 0.91 | 0.18 | 1.00 | 0.94 | 1.63 | |||||||||||||
1979 | 0.93 | 1.54 | 0.61 | 0.78 | 0.73 | 0.30 | 0.16 | 0.37 | 0.63 | 2.58 | 1.01 | 1.53 | 2.58 | |||||||||||||
1980 | 1.33 | 0.75 | 1.35 | 0.92 | 0.23 | 0.51 | 0.20 | 0.02 | 0.19 | 0.44 | 1.28 | 2.64 | 2.64 | |||||||||||||
1981 | 0.43 | 0.90 | 0.54 | 0.76 | 0.60 | 1.30 | 0.15 | 0.02 | 1.26 | 1.18 | 1.34 | 3.40 | 3.40 | |||||||||||||
1982 | 1.96 | 1.85 | 0.44 | 0.99 | 0.27 | 0.95 | 0.32 | 0.26 | 0.45 | 0.54 | 1.51 | 2.07 | 2.07 | |||||||||||||
1983 | 0.97 | 1.44 | 1.34 | 0.58 | 0.51 | 0.24 | 0.61 | 1.42 | 0.22 | 0.26 | 0.89 | 0.90 | 1.44 | |||||||||||||
1984 | 0.50 | 3.66 | 0.65 | 0.84 | 0.60 | 0.59 | 0.15 | 0.01 | 0.37 | 0.67 | 2.90 | 1.03 | 3.66 | |||||||||||||
1985 | 0.12 | 1.43 | 0.87 | 0.16 | 0.67 | 1.00 | 0.50 | 0.28 | 0.32 | 0.75 | 0.91 | 0.80 | 1.43 | |||||||||||||
1986 | 0.85 | 1.86 | 0.80 | 0.26 | 1.19 | 0.22 | 0.19 | 0.03 | 0.71 | 0.70 | 1.54 | 0.56 | 1.86 | |||||||||||||
1987 | 0.87 | 1.30 | 0.50 | 0.29 | 0.92 | 0.09 | 1.17 | 0.10 | 0.42 | 0.13 | 0.99 | 1.90 | 1.90 | |||||||||||||
1988 | 1.79 | 0.43 | 0.83 | 0.65 | 0.54 | 1.16 | 0.02 | 0.00 | 0.27 | 0.07 | 1.14 | e | 2.67 | f | 2.67 | k | ||||||||||
1989 | 1.32 | f | 0.79 | c | 1.63 | d | 0.69 | e | 0.73 | 0.46 | 0.25 | a | 0.27 | 0.13 | j | 0.91 | h | 1.75 | d | 0.72 | h | ----- | z | |||
1990 | 2.76 | g | 1.54 | d | 1.00 | d | 0.92 | b | 0.59 | c | 0.35 | c | 0.46 | a | 0.77 | b | 0.78 | b | 1.59 | c | 1.30 | e | 1.35 | f | ----- | z |
1991 | 1.56 | b | 0.63 | c | 2.96 | c | 0.90 | c | 1.25 | c | 0.27 | d | 0.20 | b | 0.18 | a | 0.04 | b | 0.89 | a | 1.39 | d | 1.16 | c | ----- | z |
1992 | 1.04 | e | 1.10 | e | 0.60 | b | 1.20 | d | 0.02 | 0.66 | b | 0.61 | a | 0.05 | a | 0.45 | 1.09 | b | 1.67 | c | 1.47 | e | ----- | z | ||
1993 | 1.30 | h | 1.40 | a | 1.04 | c | 1.60 | d | 0.75 | e | 0.97 | c | 0.53 | a | 1.25 | b | 0.00 | a | 0.55 | f | 0.45 | f | 2.28 | b | ----- | z |
1994 | 0.91 | i | 1.31 | f | 0.81 | a | 0.58 | c | 0.44 | d | 0.29 | b | 0.01 | 0.00 | 0.74 | c | 1.31 | b | 2.25 | g | 1.11 | e | ----- | z | ||
1995 | 2.10 | f | 0.96 | g | 1.17 | d | 1.46 | b | 0.60 | b | 0.68 | c | 0.42 | a | 0.17 | a | 0.35 | c | 1.20 | d | 1.10 | e | 1.80 | c | ----- | z |
1996 | 2.00 | j | 2.62 | d | 0.55 | e | 1.18 | 1.00 | e | 0.40 | c | 0.53 | 0.04 | b | 1.54 | a | 1.22 | e | 5.67 | e | 4.12 | e | ----- | z | ||
1997 | 2.16 | e | 0.65 | e | 2.46 | d | 1.20 | d | 0.81 | e | 0.90 | c | 0.69 | 0.45 | b | 1.18 | b | 1.20 | f | 1.75 | e | 0.78 | g | ----- | z | |
1998 | 2.10 | h | 2.25 | e | 2.48 | e | 0.95 | b | 0.78 | e | 0.54 | a | 0.00 | 0.00 | 0.31 | a | 0.72 | j | 4.42 | h | 4.62 | d | ----- | z | ||
1999 | 3.13 | g | 2.20 | g | 2.22 | g | 0.42 | d | 0.66 | f | 0.22 | f | 0.43 | d | 0.73 | d | 0.12 | 1.66 | e | 3.67 | l | 0.90 | i | ----- | z | |
2000 | 1.68 | k | 1.65 | i | 0.74 | f | 0.58 | b | 0.62 | g | 0.43 | b | 0.21 | 0.00 | 1.09 | e | 1.02 | j | 0.67 | f | 1.37 | i | ----- | z | ||
2001 | 0.27 | j | 0.67 | h | 0.62 | h | 0.50 | h | 0.70 | b | 0.80 | f | 0.43 | b | 0.38 | 0.24 | 0.81 | h | 1.85 | j | 1.63 | k | ----- | z | ||
2002 | 2.44 | i | 1.40 | i | 0.82 | f | 0.77 | f | 0.93 | f | 0.32 | b | 0.31 | 0.29 | 0.58 | b | 0.31 | d | 2.59 | g | 3.45 | i | ----- | z | ||
2003 | 1.45 | i | 1.87 | g | 1.49 | h | 1.03 | d | 0.37 | c | 0.05 | a | 0.00 | 0.17 | 0.54 | c | 0.76 | c | 0.95 | j | 5.13 | g | ----- | z | ||
2004 | 1.95 | g | 1.96 | f | 0.77 | d | 1.02 | a | 0.36 | e | 0.39 | d | 0.10 | a | 0.32 | a | 2.70 | f | 0.95 | i | 0.97 | j | 1.34 | l | ----- | z |
2005 | 0.98 | i | 0.84 | m | 1.45 | f | 0.84 | k | 0.87 | m | 1.20 | l | 0.09 | d | 0.00 | 0.30 | h | 1.55 | o | 2.01 | i | 3.56 | o | ----- | z | |
2006 | 2.45 | f | 1.20 | d | 1.51 | i | 1.02 | h | 1.32 | i | 0.66 | b | 0.08 | d | 0.00 | 0.27 | b | 0.57 | g | 2.97 | k | 1.21 | s | ----- | z | |
2007 | 6.18 | n | 2.26 | m | 0.52 | m | 0.89 | k | 0.49 | j | 0.16 | f | ----- | z | 0.38 | c | 0.15 | g | 3.67 | t | 3.84 | h | ----- | z | ----- | z |
2008 | ----- | z | 1.12 | k | 0.70 | m | 0.60 | m | 0.20 | i | ----- | z | 0.08 | f | 0.13 | i | ----- | z | 0.02 | ----- | z | ----- | z | ----- | z | |
2009 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.17 | 1.10 | ----- | z | ||
2010 | 0.88 | a | 1.12 | 1.68 | 1.23 | 0.76 | 1.10 | 0.00 | 0.70 | 0.67 | 1.85 | 1.45 | 1.24 | 1.85 | a | |||||||||||
2011 | 1.38 | 2.04 | 1.20 | 0.59 | 0.55 | 0.41 | 0.27 | 0.00 | 0.12 | 0.38 | 1.27 | 2.10 | 2.10 | |||||||||||||
2012 | 2.70 | 1.40 | 2.47 | 0.68 | 0.80 | 1.07 | 0.13 | 0.01 | 0.03 | 1.90 | 3.43 | 1.51 | 3.43 | |||||||||||||
2013 | 0.29 | 0.57 | 0.79 | l | 0.72 | 0.45 | 0.35 | 0.00 | 0.15 | 2.80 | 0.10 | 1.12 | 0.15 | i | 2.80 | u | ||||||||||
2014 | 0.98 | 1.90 | 1.27 | 1.17 | 0.69 | 0.91 | 0.04 | 0.00 | 0.90 | 1.40 | 2.08 | 2.01 | 2.08 | |||||||||||||
2015 | 1.00 | 1.62 | 1.45 | 0.36 | 0.30 | 0.27 | 0.00 | 0.00 | 0.72 | 0.54 | 1.19 | 2.36 | 2.36 | |||||||||||||
2016 | 0.88 | 0.58 | 0.94 | 0.99 | 0.69 | 0.17 | 0.20 | 0.00 | 0.11 | 2.01 | 1.25 | 1.48 | 2.01 | |||||||||||||
2017 | 1.89 | 2.30 | 1.06 | 0.84 | 0.38 | 0.63 | 0.00 | 0.09 | 0.67 | 1.98 | 1.53 | 1.32 | 2.30 | |||||||||||||
2018 | 0.91 | 0.91 | 1.13 | 1.62 | 0.19 | 0.68 | 0.00 | 0.00 | 0.11 | 0.85 | 1.45 | 2.45 | 2.45 | |||||||||||||
2019 | 1.10 | 2.10 | 0.28 | 2.85 | 0.48 | 0.04 | ----- | z | 0.01 | m | 1.71 | 0.37 | 0.62 | 1.03 | ----- | z | ||||||||||
2020 | 1.00 | 0.80 | 0.90 | 0.62 | 0.62 | 0.19 | 0.00 | 0.00 | 0.65 | 0.65 | 1.48 | 2.35 | 2.35 | |||||||||||||
2021 | 1.54 | 1.26 | 0.31 | 0.29 | u | ----- | z | ----- | z | 0.00 | 0.00 | 1.36 | ----- | z | 1.90 | 2.20 | ----- | z | ||||||||
2022 | 1.71 | 0.75 | 1.09 | 1.15 | 0.86 | 0.60 | 0.13 | 0.12 | 0.16 | 0.50 | 1.39 | 1.90 | 1.90 | |||||||||||||
2023 | 0.76 | 0.73 | 0.90 | 0.95 | 0.22 | 0.13 | k | 0.00 | 0.00 | 1.16 | 0.78 | 0.71 | 2.51 | 2.51 | k | |||||||||||
2024 | 1.81 | 1.41 | 1.06 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 1.34 | 1.27 | 0.99 | 0.72 | 0.57 | 0.46 | 0.19 | 0.26 | 0.56 | 0.93 | 1.50 | 1.60 | 2.22 | |||||||||||||
S.D. | 0.67 | 0.66 | 0.52 | 0.44 | 0.32 | 0.33 | 0.23 | 0.33 | 0.47 | 0.63 | 0.75 | 0.83 | 0.53 | |||||||||||||
SKEW | 0.52 | 1.12 | 1.62 | 1.77 | 1.02 | 1.26 | 1.90 | 1.68 | 1.85 | 0.98 | 2.77 | 1.26 | 0.75 | |||||||||||||
MAX | 3.12 | 3.66 | 2.96 | 2.85 | 1.82 | 1.62 | 1.17 | 1.42 | 2.80 | 2.85 | 5.67 | 4.62 | 3.66 | |||||||||||||
MIN | 0.12 | 0.35 | 0.28 | 0.14 | 0.02 | 0.01 | 0.00 | 0.00 | 0.00 | 0.02 | 0.43 | 0.37 | 1.43 | |||||||||||||
YRS | 63 | 69 | 70 | 72 | 71 | 72 | 76 | 78 | 75 | 69 | 68 | 66 | 54 |