YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | 0.15 | 1.41 | 0.81 | 0.06 | 0.40 | 0.15 | ----- | z | |||||||
1940 | 0.14 | 0.77 | 0.00 | 0.71 | 0.06 | 0.02 | 0.30 | 0.84 | 0.56 | 1.03 | 0.72 | 2.02 | 2.02 | |||||||||||||
1941 | 0.42 | 0.84 | 1.36 | 1.47 | 1.19 | 0.00 | 1.20 | 0.25 | w | 1.37 | 0.50 | 1.70 | 1.41 | 1.70 | w | |||||||||||
1942 | 0.70 | 0.23 | 0.46 | 0.66 | 0.00 | 0.00 | 0.73 | 0.38 | 1.42 | 0.20 | ----- | z | 0.30 | ----- | z | |||||||||||
1943 | 0.57 | 0.13 | 0.97 | 0.00 | 0.00 | 0.00 | 0.00 | ----- | z | 1.35 | 0.32 | 0.00 | ----- | z | ----- | z | ||||||||||
1944 | 0.32 | 1.10 | 0.58 | 0.60 | 0.97 | 0.00 | 0.44 | 0.15 | 0.31 | 0.25 | 0.50 | 0.92 | 1.10 | |||||||||||||
1945 | 0.76 | 0.20 | 0.80 | 0.00 | 0.00 | 0.00 | 0.29 | 0.96 | 0.00 | 0.23 | 0.00 | 0.35 | 0.96 | |||||||||||||
1946 | 0.45 | 0.31 | 0.15 | 0.21 | 0.00 | 0.00 | 0.47 | 0.23 | 2.25 | 0.15 | 1.35 | 1.00 | 2.25 | |||||||||||||
1947 | 0.08 | 0.49 | 0.00 | 0.00 | 0.15 | 0.00 | 0.15 | 1.06 | 0.43 | 0.44 | 1.02 | x | 0.63 | 1.06 | x | |||||||||||
1948 | 0.00 | 0.48 | 0.53 | 0.00 | 0.00 | 0.02 | 0.12 | 1.00 | 0.41 | 0.20 | 0.00 | 0.60 | 1.00 | |||||||||||||
1949 | 0.83 | 0.20 | 0.05 | g | 0.24 | g | 0.07 | 1.37 | 0.30 | 0.44 | 0.52 | 0.24 | 0.45 | 0.55 | 1.37 | n | ||||||||||
1950 | 1.04 | 1.01 | 0.34 | 0.00 | 0.07 | 0.33 | 0.72 | 0.35 | 0.45 | 0.00 | 0.13 | 0.00 | 1.04 | |||||||||||||
1951 | 1.61 | 0.14 | 1.41 | 0.72 | 0.17 | 0.00 | 0.88 | 4.30 | 0.19 | 0.25 | 0.94 | 0.77 | 4.30 | |||||||||||||
1952 | 0.94 | 0.28 | 0.99 | 0.75 | 0.00 | 0.00 | j | 0.55 | 0.40 | 0.51 | 0.00 | 1.22 | 0.73 | 1.22 | j | |||||||||||
1953 | 0.40 | 0.36 | 0.76 | 0.05 | 0.03 | 0.00 | 0.82 | 0.10 | 0.00 | 0.00 | 0.29 | 0.10 | 0.82 | |||||||||||||
1954 | 0.55 | 0.97 | 1.52 | 0.00 | 0.19 | 0.00 | 1.17 | 0.85 | 1.40 | 0.05 | 0.00 | 0.02 | 1.52 | |||||||||||||
1955 | 1.12 | 0.00 | 0.00 | 0.00 | 0.00 | 0.69 | 1.72 | 0.88 | 0.10 | 0.00 | 0.32 | 0.75 | 1.72 | |||||||||||||
1956 | 0.59 | 0.31 | 0.00 | 0.09 | 0.00 | 0.04 | 0.42 | 0.00 | 0.23 | 0.33 | 0.00 | 0.19 | 0.59 | |||||||||||||
1957 | 0.81 | 0.26 | 0.65 | 0.12 | 0.43 | 0.38 | 0.64 | 0.41 | 0.00 | 1.22 | 0.05 | 0.13 | 1.22 | |||||||||||||
1958 | 0.03 | 0.83 | 1.09 | 0.29 | 0.06 | 0.00 | 0.13 | 0.31 | 0.72 | 0.41 | 0.37 | 0.00 | 1.09 | |||||||||||||
1959 | 0.04 | 1.20 | 0.00 | 0.00 | 0.00 | 0.02 | 0.12 | 0.51 | 0.02 | 3.00 | 0.78 | 1.95 | 3.00 | |||||||||||||
1960 | 0.64 | 0.11 | 0.66 | 0.00 | 0.00 | 0.00 | 0.76 | 0.66 | 0.76 | 1.27 | 0.00 | 0.00 | 1.27 | |||||||||||||
1961 | 0.19 | 0.07 | 0.37 | 0.00 | 0.00 | 0.00 | 0.57 | 0.81 | 0.34 | 0.20 | 0.24 | 1.18 | 1.18 | |||||||||||||
1962 | 0.91 | 0.27 | 0.92 | 0.01 | 0.00 | 0.03 | 0.08 | 0.11 | 0.35 | 0.09 | 0.16 | 0.39 | 0.92 | |||||||||||||
1963 | 0.88 | 0.71 | 0.56 | 0.38 | 0.00 | 0.00 | 0.06 | 1.24 | 0.40 | 0.82 | 0.66 | 0.14 | 1.24 | |||||||||||||
1964 | 0.45 | 0.00 | 0.52 | 0.08 | 0.00 | 0.00 | 0.38 | 1.90 | 0.25 | 0.47 | 1.10 | 0.53 | 1.90 | |||||||||||||
1965 | 0.84 | 1.63 | 0.64 | 0.68 | 0.45 | 0.13 | 0.39 | 0.31 | 0.21 | 0.12 | 0.75 | 1.86 | 1.86 | |||||||||||||
1966 | 0.21 | 0.86 | 0.15 | 0.02 | 0.00 | 0.06 | 0.09 | 1.34 | 1.35 | 0.59 | 0.79 | 0.78 | 1.35 | |||||||||||||
1967 | 0.21 | 0.00 | 0.68 | 0.30 | 0.28 | 0.19 | 3.25 | 0.86 | 0.45 | 0.07 | 0.78 | 2.07 | 3.25 | |||||||||||||
1968 | 0.28 | 0.45 | 1.15 | 0.06 | 0.01 | 0.00 | 1.37 | 0.92 | 0.00 | 0.39 | 1.13 | 0.86 | 1.37 | |||||||||||||
1969 | 1.14 | 0.51 | 0.94 | 0.15 | 0.39 | 0.00 | 1.04 | 0.95 | 0.18 | 0.28 | 0.33 | 0.54 | 1.14 | |||||||||||||
1970 | 0.24 | 0.32 | 1.08 | 0.20 | 0.00 | 0.00 | 0.38 | 0.06 | 3.10 | 0.89 | 0.10 | 0.20 | 3.10 | |||||||||||||
1971 | 0.32 | 0.55 | 0.00 | 0.27 | 0.00 | 0.00 | 0.10 | 0.99 | 1.06 | 0.80 | 0.06 | 0.30 | 1.06 | |||||||||||||
1972 | 0.00 | 0.00 | 0.00 | 0.00 | 0.28 | 1.35 | 0.40 | 0.60 | 0.11 | 1.83 | 0.98 | 1.17 | 1.83 | |||||||||||||
1973 | 0.12 | 0.88 | 0.75 | 0.00 | 0.16 | 0.27 | 1.35 | 0.16 | 0.00 | 0.00 | 0.42 | 0.00 | 1.35 | |||||||||||||
1974 | 0.68 | 0.03 | 0.96 | 0.00 | 0.00 | 0.00 | 0.57 | 0.34 | 0.07 | 1.54 | 0.14 | 0.59 | 1.54 | |||||||||||||
1975 | 0.08 | 0.77 | 0.53 | 0.65 | 0.00 | 0.00 | 0.20 | 0.20 | 0.50 | 0.15 | 1.46 | 0.48 | 1.46 | |||||||||||||
1976 | 0.10 | 0.77 | 0.50 | 0.48 | 0.20 | 0.00 | 0.31 | 0.75 | 1.18 | 0.27 | 0.17 | 0.10 | 1.18 | |||||||||||||
1977 | 0.84 | 0.02 | 0.16 | 0.08 | 0.33 | 0.05 | 0.12 | 0.31 | 1.01 | 0.21 | 0.60 | 0.25 | 1.01 | |||||||||||||
1978 | 0.72 | 1.16 | ----- | z | 0.64 | 0.40 | 0.56 | 1.08 | 0.68 | 0.56 | 0.72 | 1.02 | 2.74 | ----- | z | |||||||||||
1979 | 1.39 | 0.03 | 0.90 | 0.09 | 0.96 | 0.02 | 0.92 | 0.85 | 0.03 | 0.82 | 0.35 | 0.13 | 1.39 | |||||||||||||
1980 | 0.93 | 1.20 | 0.63 | 0.23 | 0.00 | 0.22 | 0.52 | 0.88 | 0.23 | 0.12 | 0.00 | 0.07 | 1.20 | |||||||||||||
1981 | 0.25 | 0.57 | 0.55 | 0.35 | 0.34 | 0.00 | 1.18 | 0.70 | 1.58 | 0.65 | 0.75 | 0.00 | 1.58 | |||||||||||||
1982 | 0.82 | a | 0.56 | 0.96 | 0.00 | 0.28 | 0.00 | 0.22 | 0.86 | 0.48 | 0.00 | 2.00 | 0.50 | 2.00 | a | |||||||||||
1983 | 1.06 | a | 0.90 | 1.70 | 0.28 | 0.08 | 0.00 | 0.28 | 1.07 | 2.13 | 1.26 | 0.48 | 0.68 | 2.13 | a | |||||||||||
1984 | 0.45 | 0.00 | 0.00 | a | 0.98 | 0.10 | a | 0.41 | 1.06 | 0.56 | 1.11 | 1.33 | 0.66 | 1.08 | 1.33 | b | ||||||||||
1985 | 0.76 | 0.63 | 0.53 | 0.25 | 0.00 | 0.00 | 0.50 | ----- | z | 1.42 | 0.66 | 1.09 | 1.04 | ----- | z | |||||||||||
1986 | 0.58 | 1.30 | w | 0.75 | a | 0.00 | 0.00 | 0.11 | 1.42 | 1.96 | 0.60 | 0.89 | 1.23 | 0.93 | 1.96 | x | ||||||||||
1987 | 0.60 | 1.26 | 0.17 | 0.02 | 0.07 | 0.07 | 0.06 | 0.35 | 0.27 | 0.90 | 1.02 | 1.03 | 1.26 | |||||||||||||
1988 | 0.84 | 0.58 | a | 0.10 | 1.15 | 0.00 | 0.06 | 0.53 | 1.90 | 0.06 | 1.68 | 0.44 | 0.19 | 1.90 | a | |||||||||||
1989 | 0.82 | 0.05 | 1.26 | 0.00 | 0.16 | 0.00 | 1.50 | 0.41 | 0.38 | 0.38 | 0.23 | 0.50 | 1.50 | |||||||||||||
1990 | 0.65 | 0.48 | 0.67 | 0.54 | 0.23 | 0.06 | 0.50 | 1.38 | 1.06 | 0.00 | 0.58 | 0.68 | 1.38 | |||||||||||||
1991 | 0.50 | 0.57 | 1.07 | 0.00 | 0.03 | 0.00 | 0.04 | 0.38 | 1.62 | 0.59 | 0.71 | 0.65 | 1.62 | |||||||||||||
1992 | 0.81 | 0.55 | 0.87 | 0.69 | 0.45 | 0.08 | 1.15 | 1.86 | 0.19 | 0.23 | 0.00 | 1.21 | 1.86 | |||||||||||||
1993 | 1.79 | 0.98 | 1.56 | 0.00 | 0.26 | 0.00 | 0.15 | 0.73 | 0.00 | 0.25 | 3.41 | ----- | z | ----- | z | |||||||||||
1994 | 0.17 | 0.76 | 0.72 | 0.50 | 0.60 | 0.01 | 0.17 | 0.55 | 0.29 | 0.68 | 1.30 | 1.33 | d | 1.33 | d | |||||||||||
1995 | 1.65 | 0.47 | f | 0.98 | a | 0.16 | a | 0.16 | d | 0.00 | 0.19 | 0.23 | b | 0.75 | 0.00 | 1.02 | b | 0.02 | a | 1.65 | q | |||||
1996 | 0.05 | 0.98 | a | 0.35 | b | 0.00 | 0.00 | 0.02 | 0.28 | d | 0.15 | b | 0.34 | c | 0.48 | 0.15 | 0.00 | 0.98 | l | |||||||
1997 | 1.29 | 1.26 | 0.00 | 0.38 | 0.14 | 0.01 | 0.03 | 0.40 | t | 0.34 | ----- | z | ----- | z | 0.73 | w | ----- | z | ||||||||
1998 | 0.88 | 1.60 | 0.85 | 0.43 | 0.02 | 0.00 | 0.46 | 0.55 | 0.77 | 1.05 | 0.80 | 0.40 | 1.60 | |||||||||||||
1999 | 0.30 | 0.44 | 0.05 | 0.40 | 0.00 | 0.00 | 0.77 | 0.30 | 0.80 | 0.00 | 0.00 | 0.00 | 0.80 | |||||||||||||
2000 | 0.15 | 0.16 | 2.15 | 0.00 | 0.00 | 0.60 | 0.00 | 0.65 | 0.00 | 1.30 | 0.20 | 0.00 | 2.15 | |||||||||||||
2001 | 1.20 | 0.25 | 0.97 | 1.25 | 0.00 | 0.00 | 0.70 | 0.25 | 0.00 | 0.16 | 0.05 | 1.30 | 1.30 | |||||||||||||
2002 | 0.25 | 0.00 | 0.25 | 0.18 | 0.00 | 0.00 | 0.12 | 0.85 | 0.20 | 0.42 | 0.37 | 0.30 | 0.85 | |||||||||||||
2003 | 0.23 | 0.90 | 1.15 | 0.40 | 0.00 | 0.00 | 0.52 | 0.25 | 0.15 | 0.18 | 0.75 | 0.28 | 1.15 | |||||||||||||
2004 | 0.40 | 0.76 | 2.80 | 0.80 | 0.00 | 0.00 | 1.85 | 0.80 | 0.35 | 0.82 | 0.45 | 1.25 | 2.80 | |||||||||||||
2005 | 1.80 | 1.68 | 0.70 | 0.50 | 0.00 | 0.15 | 0.55 | 1.45 | 0.50 | 0.10 | 0.00 | 0.00 | 1.80 | |||||||||||||
2006 | 0.00 | 0.00 | 1.85 | 0.10 | 0.10 | 0.00 | 0.90 | 1.56 | 0.25 | 0.25 | 0.00 | 0.08 | 1.85 | |||||||||||||
2007 | 0.48 | 0.45 | 0.60 | 0.30 | 0.15 | 0.00 | 0.35 | 0.18 | 0.23 | 0.05 | 1.75 | 1.83 | 1.83 | |||||||||||||
2008 | 2.39 | 0.30 | 0.00 | 0.00 | ----- | z | 0.00 | 1.75 | 1.20 | 0.12 | 0.10 | 0.45 | 0.90 | ----- | z | |||||||||||
2009 | 0.33 | 0.65 | 0.00 | 0.24 | a | 0.31 | a | 0.00 | 0.05 | 0.65 | 0.11 | r | 0.00 | ----- | z | ----- | z | ----- | z | |||||||
2010 | 2.50 | 0.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||
2011 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.03 | x | ----- | z |
2012 | 0.00 | i | 0.19 | i | 1.10 | k | 0.90 | j | 0.01 | j | 0.00 | j | 0.90 | k | 1.08 | k | 2.45 | j | 0.12 | i | 0.34 | m | 1.05 | m | ----- | z |
2013 | 2.20 | j | 1.00 | h | 1.48 | j | 0.20 | h | 0.00 | n | 0.00 | k | 0.89 | g | 0.35 | g | 1.42 | f | 0.05 | g | 1.41 | i | 0.76 | i | ----- | z |
2014 | 0.00 | i | 0.00 | j | 2.00 | l | 0.11 | i | 0.00 | n | 0.00 | k | 1.25 | h | 0.97 | e | 2.14 | j | 0.30 | n | 0.00 | i | 0.51 | i | ----- | z |
2015 | 0.62 | l | 1.09 | h | 0.76 | j | 0.68 | i | 0.87 | o | 0.34 | h | 0.17 | h | 0.04 | n | 0.61 | k | 0.26 | n | 0.79 | q | 0.41 | k | ----- | z |
2016 | 1.29 | n | 0.36 | j | 0.00 | n | 0.42 | j | 0.10 | 0.41 | 0.02 | 0.80 | g | 0.03 | q | 0.35 | n | 0.73 | n | 0.91 | m | ----- | z | |||
2017 | 1.30 | i | 0.91 | g | 0.18 | o | 0.00 | m | 0.26 | o | 0.00 | m | 1.60 | l | 0.15 | n | 0.32 | j | 0.00 | n | 0.00 | p | ----- | z | ----- | z |
2018 | 0.08 | q | 0.24 | i | 0.10 | n | 0.00 | k | 0.02 | 0.10 | k | 0.75 | s | 1.12 | j | 0.18 | v | 1.92 | n | 0.42 | o | 0.08 | p | ----- | z | |
2019 | 0.95 | m | 0.44 | o | 0.53 | q | 0.10 | l | 0.00 | p | 0.00 | l | 0.59 | k | 0.17 | l | 1.20 | n | 0.00 | n | 1.71 | s | 1.35 | o | ----- | z |
2020 | 0.12 | r | 1.29 | p | 1.05 | u | 0.07 | s | 0.00 | q | 0.00 | l | 0.00 | s | 0.70 | o | 0.00 | o | 0.00 | k | 0.05 | m | 0.24 | p | ----- | z |
2021 | 0.80 | p | 0.23 | j | 0.19 | j | 0.31 | k | 0.00 | m | 0.00 | i | 1.42 | j | 1.95 | q | 0.57 | k | 0.24 | n | 0.00 | n | 1.79 | o | ----- | z |
2022 | 0.50 | o | 0.90 | l | 0.30 | u | ----- | z | ----- | z | 0.50 | v | 1.21 | k | 1.32 | i | 0.75 | o | 0.75 | k | 0.25 | q | 0.40 | p | ----- | z |
2023 | 1.56 | n | 0.63 | i | 1.28 | i | 0.00 | 0.08 | u | 0.00 | s | 0.35 | i | 0.14 | e | 0.57 | f | 0.00 | i | 0.10 | h | 0.75 | i | ----- | z | |
2024 | 0.91 | h | 1.46 | k | 0.35 | r | 0.18 | s | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.66 | 0.55 | 0.70 | 0.28 | 0.15 | 0.11 | 0.59 | 0.76 | 0.59 | 0.50 | 0.60 | 0.64 | 1.59 | |||||||||||||
S.D. | 0.54 | 0.44 | 0.56 | 0.34 | 0.24 | 0.26 | 0.57 | 0.65 | 0.61 | 0.55 | 0.60 | 0.61 | 0.68 | |||||||||||||
SKEW | 1.30 | 0.64 | 1.05 | 1.39 | 2.48 | 3.45 | 1.88 | 2.63 | 1.70 | 1.92 | 1.86 | 1.17 | 1.73 | |||||||||||||
MAX | 2.50 | 1.68 | 2.80 | 1.47 | 1.19 | 1.37 | 3.25 | 4.30 | 3.10 | 3.00 | 3.41 | 2.74 | 4.30 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.59 | |||||||||||||
YRS | 71 | 69 | 68 | 70 | 71 | 71 | 72 | 69 | 70 | 70 | 67 | 67 | 55 |