YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1933 | 0.44 | c | 1.88 | 8.15 | 0.43 | 0.35 | 0.30 | a | 0.32 | 0.41 | 0.22 | 0.73 | 0.63 | 3.00 | 8.15 | d | ||||||||||
1934 | 0.85 | 1.93 | 1.51 | 6.07 | 1.23 | 0.95 | a | 0.43 | s | 0.52 | 0.48 | 1.03 | 2.64 | m | 1.12 | ----- | z | |||||||||
1935 | 1.32 | 0.95 | a | 2.60 | 0.89 | q | 1.30 | u | 3.50 | v | 0.60 | w | 0.70 | 0.27 | r | 1.05 | b | 2.86 | a | 0.66 | b | ----- | z | |||
1936 | 2.75 | a | 0.67 | 1.45 | a | 3.60 | 2.69 | a | 0.16 | r | 0.76 | p | 1.15 | s | 0.58 | a | 1.83 | t | 2.50 | 1.41 | g | ----- | z | |||
1937 | 2.00 | k | 4.10 | d | 1.43 | d | 1.00 | a | 0.95 | 0.35 | 0.66 | a | 1.20 | 0.94 | e | 0.90 | a | 1.12 | 3.85 | ----- | z | |||||
1938 | 1.34 | s | 1.44 | a | 1.02 | 8.52 | 2.46 | 1.25 | a | 1.50 | 2.10 | c | 0.27 | 0.90 | b | 0.62 | g | 1.81 | a | ----- | z | |||||
1939 | 1.06 | 1.08 | 2.30 | b | 4.38 | 0.63 | f | 0.30 | 0.40 | 0.37 | 2.28 | 6.85 | i | 0.67 | 0.76 | a | 6.85 | r | ||||||||
1940 | 4.26 | 3.10 | 2.67 | 1.19 | 2.60 | 0.42 | 0.85 | 0.85 | 1.00 | 0.90 | 5.45 | 1.08 | 5.45 | |||||||||||||
1941 | 0.57 | 1.62 | 0.65 | 0.87 | 0.98 | 1.48 | 0.55 | a | 0.60 | 0.65 | 4.24 | 0.21 | 0.25 | 4.24 | a | |||||||||||
1942 | 0.26 | 0.62 | 1.92 | 1.25 | 0.36 | 0.36 | 0.35 | 0.30 | 0.10 | 9.75 | 1.01 | 2.51 | q | 9.75 | q | |||||||||||
1943 | 2.54 | 0.78 | q | 1.73 | 0.62 | 0.78 | 0.26 | 0.17 | 0.42 | 0.24 | 0.22 | 0.20 | 0.68 | 2.54 | q | |||||||||||
1944 | 0.43 | 0.64 | h | 1.62 | 1.90 | 0.30 | 0.52 | 0.23 | 0.08 | 0.25 | 1.16 | 0.38 | 0.55 | 1.90 | h | |||||||||||
1945 | 0.24 | 0.19 | 0.35 | 5.65 | 0.40 | 0.24 | a | 1.15 | 0.53 | 0.14 | 0.24 | 0.29 | 1.36 | 5.65 | a | |||||||||||
1946 | 2.80 | 0.29 | 0.34 | 0.67 | 0.63 | 0.22 | a | 2.40 | 1.10 | 0.60 | 2.20 | 1.18 | 2.83 | 2.83 | a | |||||||||||
1947 | 0.90 | 0.90 | 4.50 | 0.42 | 1.93 | 0.28 | 0.79 | 0.90 | 0.57 | 1.73 | 2.22 | 0.70 | 4.50 | |||||||||||||
1948 | 4.20 | 2.11 | 1.03 | 3.01 | 0.58 | 0.17 | 0.93 | 0.41 | 1.95 | 0.43 | 2.04 | a | 1.10 | 4.20 | a | |||||||||||
1949 | 4.58 | 3.15 | 0.95 | 0.83 | 0.19 | 1.40 | 0.61 | 0.15 | 0.20 | 0.17 | 0.30 | 0.54 | 4.58 | |||||||||||||
1950 | 2.42 | 2.40 | 0.83 | 1.43 | 0.39 | 0.11 | 0.42 | 1.69 | a | 0.50 | 0.27 | 4.24 | 2.48 | 4.24 | a | |||||||||||
1951 | 1.05 | 1.20 | 4.20 | 0.13 | 0.44 | 0.90 | 0.22 | a | 0.45 | r | 0.55 | b | 0.70 | 0.20 | d | 2.40 | 4.20 | y | ||||||||
1952 | 3.10 | a | 0.66 | 0.66 | 0.80 | 0.15 | 0.18 | 1.37 | 0.37 | 0.20 | 0.80 | 1.00 | 1.00 | 3.10 | a | |||||||||||
1953 | 0.39 | 0.60 | 0.54 | 1.50 | 1.30 | 0.15 | 0.15 | 0.14 | 0.10 | 0.15 | 0.62 | 2.35 | 2.35 | |||||||||||||
1954 | 0.20 | 0.70 | 1.41 | 1.65 | 1.10 | ----- | z | 1.70 | 0.45 | 0.80 | 0.60 | 2.40 | 2.10 | ----- | z | |||||||||||
1955 | 2.20 | 2.00 | 2.10 | 0.30 | 0.60 | 0.20 | 0.20 | 0.70 | 0.20 | 0.20 | 1.20 | 4.50 | 4.50 | |||||||||||||
1956 | 2.20 | 0.55 | 2.75 | 0.42 | 0.43 | 0.42 | 1.10 | 0.90 | 0.14 | 0.32 | 2.35 | 2.12 | 2.75 | |||||||||||||
1957 | 1.03 | 0.67 | ----- | z | 1.48 | 0.53 | 0.25 | 0.35 | 0.66 | 0.27 | 0.36 | 2.38 | 1.85 | ----- | z | |||||||||||
1958 | 0.31 | 2.65 | 2.75 | 0.80 | 1.24 | 0.45 | 1.30 | g | 1.11 | 0.57 | 0.72 | 0.53 | v | 5.73 | g | ----- | z | |||||||||
1959 | 3.45 | 1.68 | 0.26 | 0.50 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||||
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1965 | ----- | z | ----- | z | 2.30 | 5.30 | 0.53 | 0.21 | 3.40 | 0.22 | 0.25 | 1.16 | 5.30 | 4.00 | ----- | z | ||||||||||
1966 | 0.94 | 2.00 | 0.52 | 0.40 | 2.33 | 0.17 | 0.65 | 0.47 | 0.80 | 0.62 | 6.50 | 1.40 | c | 6.50 | c | |||||||||||
1967 | 3.70 | c | 3.00 | a | 4.00 | a | 0.90 | 1.90 | 1.00 | 0.50 | 1.02 | 0.05 | 0.95 | 0.80 | 2.00 | k | 4.00 | p | ||||||||
1968 | 2.59 | 2.00 | 8.93 | 2.44 | 1.45 | 0.00 | q | 0.22 | u | 1.45 | 0.86 | 2.21 | s | 1.00 | s | 2.32 | h | ----- | z | |||||||
1969 | 3.52 | n | 2.56 | n | 4.80 | r | 0.87 | k | ----- | z | 0.09 | x | 0.20 | k | 0.19 | i | 1.19 | k | 0.55 | r | 0.38 | p | 1.36 | p | ----- | z |
1970 | 2.06 | m | 1.34 | s | 0.26 | w | 0.84 | i | 0.40 | u | 0.31 | m | 0.45 | c | 0.22 | o | 0.42 | t | 0.32 | p | 3.77 | g | 3.32 | s | ----- | z |
1971 | 5.37 | k | 0.12 | v | 1.64 | 1.12 | 0.40 | ----- | z | 0.15 | 0.06 | 0.21 | 0.26 | a | 0.78 | 0.12 | ----- | z | ||||||||
1972 | 0.93 | 2.92 | 3.46 | 0.43 | 0.09 | 0.60 | 0.08 | 1.81 | d | 0.07 | 1.82 | 0.30 | 2.70 | 3.46 | d | |||||||||||
1973 | 1.18 | 1.83 | 0.48 | 0.86 | 1.46 | 0.12 | 0.24 | 0.20 | 0.38 | 0.46 | 1.32 | 2.62 | 2.62 | |||||||||||||
1974 | 1.34 | 0.36 | 2.07 | 3.37 | 1.60 | 0.18 | 2.26 | ----- | z | 0.38 | 0.46 | 1.98 | 0.33 | ----- | z | |||||||||||
1975 | 1.62 | 0.89 | 2.26 | 0.30 | 0.08 | 0.17 | 0.39 | 0.05 | 0.28 | 0.76 | 0.79 | 0.54 | 2.26 | |||||||||||||
1976 | 1.86 | 2.88 | 3.70 | c | 2.98 | e | 0.36 | 0.32 | f | 0.38 | 0.20 | 1.49 | 0.82 | m | 0.55 | 0.43 | ----- | z | ||||||||
1977 | 0.66 | 1.20 | 0.81 | 10.49 | o | 1.36 | ----- | z | ----- | z | ----- | z | 0.85 | g | 0.73 | 0.79 | 1.45 | ----- | z | |||||||
1978 | 0.76 | 0.40 | 1.62 | 0.82 | c | 3.14 | h | 0.30 | 0.30 | 1.10 | 0.40 | 1.65 | 2.00 | 2.00 | 3.14 | k | ||||||||||
1979 | 2.87 | 4.00 | a | 0.00 | 0.93 | 0.42 | 0.40 | a | 0.30 | 1.94 | 0.27 | 0.50 | 0.82 | a | 4.30 | c | 4.30 | f | ||||||||
1980 | 5.95 | 2.20 | a | 2.66 | 1.21 | a | 1.30 | b | 0.60 | m | 2.59 | 0.81 | 0.41 | 0.60 | c | 0.48 | 2.70 | b | 5.95 | v | ||||||
1981 | 0.65 | b | 1.36 | e | 0.93 | a | 1.75 | a | 2.25 | c | 0.40 | 0.40 | c | 1.00 | e | 0.40 | d | 1.00 | e | 2.74 | l | 4.46 | f | ----- | z | |
1982 | 3.17 | d | 1.00 | f | 2.66 | e | 10.30 | i | 0.32 | a | 1.00 | d | 0.55 | d | 1.00 | b | 0.56 | a | 2.05 | d | 0.70 | a | 2.95 | e | ----- | z |
1983 | ----- | z | 0.52 | d | 1.24 | a | 0.53 | e | 0.86 | 0.35 | b | 0.82 | d | 0.55 | f | 0.25 | b | 1.85 | r | 1.55 | 5.00 | d | ----- | z | ||
1984 | 1.26 | a | 0.64 | 1.31 | a | 0.79 | c | 0.32 | e | 0.50 | a | 0.00 | 0.17 | b | 0.40 | d | 0.27 | b | 2.90 | f | 1.62 | d | ----- | z | ||
1985 | 1.62 | a | 4.72 | b | 0.72 | d | 0.70 | b | 1.42 | b | 0.25 | 1.00 | 0.85 | 1.00 | 4.00 | e | 4.51 | k | 2.00 | b | ----- | z | ||||
1986 | 0.56 | i | 1.54 | g | 2.38 | f | 1.52 | 0.45 | c | 0.90 | d | 2.52 | h | 0.50 | e | 0.55 | c | 2.15 | e | 1.80 | g | 2.97 | d | ----- | z | |
1987 | 1.70 | n | 6.40 | c | 0.38 | b | 1.96 | c | 4.65 | e | 0.90 | e | 0.38 | b | 0.54 | c | 1.61 | d | 1.56 | b | 2.06 | b | 7.30 | b | ----- | z |
1988 | 1.40 | d | 0.47 | c | 2.90 | a | 1.80 | e | 1.78 | c | 0.51 | a | 0.65 | b | 1.06 | d | 1.90 | b | 3.25 | e | 1.52 | d | 3.00 | a | ----- | z |
1989 | 2.03 | 3.26 | 2.15 | 7.21 | c | 3.10 | 0.50 | 1.10 | 0.86 | 0.60 | 1.92 | 1.10 | 4.18 | 7.21 | c | |||||||||||
1990 | 2.17 | 5.00 | 3.03 | 0.13 | 0.80 | 0.38 | 0.26 | 0.44 | 0.85 | 1.71 | 1.79 | 1.76 | 5.00 | |||||||||||||
1991 | 2.36 | 0.80 | 2.00 | 1.07 | 0.16 | 0.16 | 0.65 | 1.20 | 0.39 | 0.55 | 1.20 | 1.90 | 2.36 | |||||||||||||
1992 | 2.36 | 1.76 | 0.71 | 0.29 | 2.23 | 0.46 | 0.50 | 1.30 | 1.37 | 1.07 | 3.75 | 1.85 | 3.75 | |||||||||||||
1993 | 0.40 | f | 0.75 | d | 2.70 | c | 0.65 | c | 0.50 | d | 0.30 | c | 1.25 | e | 2.00 | d | 0.60 | b | 2.40 | b | 1.10 | f | 1.35 | c | ----- | z |
1994 | 1.29 | c | 2.04 | b | 7.55 | d | 0.55 | c | 0.15 | b | 1.21 | c | 2.40 | d | 0.60 | a | 1.54 | a | 0.30 | c | 1.00 | c | 0.52 | e | ----- | z |
1995 | 0.90 | c | 1.00 | e | 2.38 | d | 2.00 | b | 1.33 | b | 0.70 | b | 0.49 | a | 0.50 | b | 0.73 | a | 1.30 | c | 1.50 | c | 3.72 | b | ----- | z |
1996 | 1.00 | d | 1.00 | e | 4.30 | d | 1.00 | h | 0.71 | h | 0.88 | c | 1.34 | e | 0.15 | b | 0.62 | d | 0.00 | 4.34 | d | 2.80 | f | ----- | z | |
1997 | 6.70 | j | 1.10 | c | 1.55 | f | 1.80 | a | 2.30 | f | 0.55 | c | 2.20 | g | 0.00 | a | 0.02 | c | 0.32 | u | 3.10 | e | 4.60 | b | ----- | z |
1998 | 1.15 | c | 0.44 | 0.35 | 0.61 | 0.52 | 0.43 | 0.42 | m | 0.21 | 0.58 | 0.63 | 0.91 | 0.66 | 1.15 | p | ||||||||||
1999 | 1.56 | 1.09 | 0.36 | 1.08 | 0.46 | 0.17 | 0.42 | 0.35 | 0.17 | 0.22 | 0.19 | 1.81 | 1.81 | |||||||||||||
2000 | 1.78 | 0.01 | 0.21 | 0.99 | 0.14 | 0.19 | 0.38 | 2.48 | 0.67 | 0.34 | 1.00 | 1.09 | 2.48 | |||||||||||||
2001 | 0.69 | 0.48 | 1.21 | 0.35 | 0.17 | t | 1.09 | 0.37 | 0.71 | 0.58 | 1.38 | 3.60 | 1.38 | c | 3.60 | w | ||||||||||
2002 | 3.85 | e | 0.90 | 1.86 | 0.52 | 1.61 | 0.24 | 0.41 | t | 0.15 | l | 0.02 | 2.80 | 1.06 | 0.72 | ----- | z | |||||||||
2003 | 2.42 | s | 1.78 | a | 4.04 | 0.29 | 0.11 | 0.27 | 0.01 | 0.15 | a | 0.05 | f | 0.50 | g | 0.75 | d | 1.95 | c | ----- | z | |||||
2004 | 3.75 | b | 0.35 | f | 3.00 | c | 2.00 | e | 2.50 | e | 0.31 | e | 0.30 | a | 1.00 | c | 0.90 | c | 0.60 | e | 1.40 | d | 1.45 | a | ----- | z |
2005 | 3.50 | c | 1.65 | a | 7.72 | c | 1.15 | d | 1.90 | d | 0.45 | b | 0.88 | g | 0.35 | c | 0.95 | e | 1.10 | d | 1.17 | d | 0.40 | b | ----- | z |
2006 | 0.70 | f | 0.70 | e | 3.20 | d | 0.98 | f | 2.42 | e | 0.40 | b | 0.19 | b | 0.16 | e | 1.03 | f | 2.50 | b | 3.20 | d | 0.90 | f | ----- | z |
2007 | 0.41 | c | 1.11 | e | 2.60 | f | 0.44 | f | 0.35 | c | 0.55 | a | 0.39 | f | 0.37 | f | 1.67 | g | 0.89 | c | 3.00 | g | 6.75 | l | ----- | z |
2008 | 2.25 | e | 1.30 | c | 0.15 | 0.65 | c | 0.85 | c | 0.15 | b | 0.36 | e | 0.31 | f | 0.50 | c | 1.09 | d | 2.78 | f | 2.71 | b | ----- | z | |
2009 | 1.95 | c | 2.59 | c | 2.01 | e | 1.85 | d | 0.91 | h | 0.08 | b | 0.32 | g | 1.06 | e | 0.51 | e | 0.62 | e | 1.80 | e | 2.09 | f | ----- | z |
2010 | 0.63 | e | 1.69 | c | 1.20 | h | 2.06 | i | 0.12 | j | ----- | z | 0.54 | g | 0.37 | h | 0.64 | f | 0.38 | m | 2.01 | i | 4.04 | h | ----- | z |
2011 | 4.07 | g | 3.34 | g | 1.61 | e | 0.69 | d | 0.61 | j | 0.90 | g | 0.60 | f | 0.18 | d | 0.52 | c | 0.22 | b | 0.35 | g | 0.51 | f | ----- | z |
2012 | 0.12 | i | 0.54 | f | 3.70 | h | 0.51 | e | 0.44 | e | 0.76 | i | 0.40 | m | 0.26 | e | ----- | z | 0.26 | h | 0.29 | e | 0.31 | g | ----- | z |
2013 | 4.12 | g | 0.50 | f | 2.01 | h | 0.64 | h | 4.92 | h | 0.57 | i | 1.23 | i | 3.30 | m | 0.43 | e | 0.44 | g | 3.69 | k | 4.54 | e | ----- | z |
2014 | 1.24 | e | 1.91 | e | 2.53 | g | 2.70 | e | 1.61 | i | 0.44 | f | 2.04 | f | 0.38 | h | 0.60 | e | 2.00 | g | 0.62 | g | 2.84 | f | ----- | z |
2015 | 2.95 | k | 0.85 | f | 3.35 | g | 2.07 | d | 0.55 | g | 2.10 | d | 0.50 | f | 3.60 | g | 1.17 | f | 1.50 | e | 1.30 | e | 0.69 | f | ----- | z |
2016 | 0.48 | h | 0.37 | e | 1.22 | d | 1.24 | g | 2.13 | e | 0.74 | i | 1.15 | i | 2.13 | e | 1.85 | g | 0.60 | e | 0.93 | h | 1.91 | g | ----- | z |
2017 | 5.10 | i | 1.14 | f | 1.00 | e | 3.79 | j | 6.00 | e | 0.49 | g | 0.55 | e | 0.44 | f | 0.26 | i | 3.41 | i | 0.80 | q | 2.85 | l | ----- | z |
2018 | 1.97 | h | 2.81 | f | 1.25 | g | 2.40 | e | 1.82 | i | 0.51 | f | 0.98 | i | 3.58 | i | 5.30 | i | 1.41 | j | 0.70 | m | 1.31 | r | ----- | z |
2019 | 1.80 | j | 3.02 | i | 0.52 | j | 0.45 | 2.72 | f | 4.37 | 0.55 | 0.37 | j | 0.37 | j | 0.56 | d | 1.30 | c | 1.00 | e | ----- | z | |||
2020 | 2.26 | g | 2.54 | i | 2.10 | h | 5.10 | 0.25 | g | 0.25 | b | 0.47 | d | 0.07 | e | 0.27 | 1.14 | f | 1.21 | 0.58 | k | ----- | z | |||
2021 | 2.60 | h | ----- | z | 1.89 | e | 1.02 | e | 0.42 | g | 0.19 | e | 0.21 | e | 1.54 | f | 1.57 | f | 0.50 | m | ----- | z | ----- | z | ----- | z |
2022 | 1.45 | h | 1.95 | c | 0.90 | l | 0.35 | m | 0.35 | o | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 1.82 | 1.64 | 2.13 | 1.63 | 1.16 | 0.55 | 0.72 | 0.73 | 0.58 | 1.19 | 1.62 | 2.03 | 4.09 | |||||||||||||
S.D. | 1.27 | 1.25 | 1.86 | 1.70 | 1.10 | 0.62 | 0.69 | 0.58 | 0.47 | 1.39 | 1.38 | 1.44 | 1.68 | |||||||||||||
SKEW | 0.95 | 1.48 | 1.87 | 2.13 | 1.94 | 4.01 | 1.96 | 1.09 | 1.62 | 3.92 | 1.61 | 1.14 | 0.77 | |||||||||||||
MAX | 5.95 | 6.40 | 8.93 | 8.52 | 6.00 | 4.37 | 3.40 | 2.48 | 2.28 | 9.75 | 6.50 | 7.30 | 8.15 | |||||||||||||
MIN | 0.20 | 0.01 | 0.00 | 0.13 | 0.08 | 0.08 | 0.00 | 0.00 | 0.02 | 0.00 | 0.19 | 0.12 | 1.81 | |||||||||||||
YRS | 61 | 67 | 70 | 72 | 65 | 65 | 61 | 65 | 68 | 66 | 62 | 61 | 23 |