YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 2.30 | 0.03 | 0.48 | 2.81 | i | |||
1925 | 0.39 | a | 0.20 | t | 0.28 | 1.34 | 0.35 | w | 7.50 | 1.10 | 1.10 | 1.37 | 0.22 | 0.53 | 0.26 | 14.09 | b | |||||||||
1926 | 0.58 | 0.23 | 0.06 | 0.32 | a | 1.29 | q | 1.90 | r | 2.18 | 2.37 | 0.67 | 2.31 | 0.15 | s | 0.46 | 9.18 | c | ||||||||
1927 | 0.28 | s | 0.30 | 1.03 | 4.04 | n | 2.95 | l | 3.62 | 3.98 | 2.50 | 2.52 | 0.54 | 0.58 | 0.83 | m | 15.07 | d | ||||||||
1928 | 0.04 | 0.19 | 0.11 | 1.14 | 0.43 | r | 3.25 | 2.64 | 3.55 | 1.17 | 0.91 | w | 1.02 | 0.18 | c | 13.29 | b | |||||||||
1929 | 1.46 | 0.41 | 1.90 | 2.90 | 1.08 | 0.24 | 1.18 | 1.95 | r | 2.82 | 2.64 | 0.29 | a | 0.16 | 15.08 | a | ||||||||||
1930 | 0.38 | 1.25 | 0.37 | 1.89 | 4.00 | 2.15 | 1.69 | 3.23 | 2.48 | y | 3.03 | 1.65 | 0.04 | 19.68 | a | |||||||||||
1931 | 0.12 | 0.47 | 1.39 | 1.41 | 3.80 | 2.49 | 0.64 | 0.38 | 1.13 | 2.17 | 1.30 | 2.61 | 17.91 | |||||||||||||
1932 | 0.46 | 0.19 | 0.84 | 1.94 | 1.70 | 4.43 | a | 1.08 | 4.40 | 1.04 | x | 0.86 | 0.28 | 0.60 | 16.78 | a | ||||||||||
1933 | 0.31 | 0.18 | 1.43 | 1.22 | 2.42 | 1.53 | 2.86 | s | 0.51 | 1.50 | 0.05 | 0.19 | 1.10 | 10.44 | a | |||||||||||
1934 | 0.05 | 0.04 | 0.78 | 0.09 | 0.93 | 3.53 | 1.73 | 2.41 | 2.13 | 2.00 | 0.91 | 0.64 | 15.24 | |||||||||||||
1935 | 0.37 | 0.73 | 2.36 | 6.22 | 2.05 | 5.44 | 2.69 | 1.93 | ----- | z | 0.17 | 0.69 | b | 0.70 | 23.35 | a | ||||||||||
1936 | 0.80 | a | 0.62 | 0.55 | 1.27 | 1.37 | 1.53 | 1.92 | 1.72 | 0.22 | 0.22 | a | 1.16 | 0.26 | 11.64 | |||||||||||
1937 | 0.85 | ----- | z | 1.66 | 2.23 | 2.46 | 1.81 | 2.73 | 0.78 | 0.75 | 0.24 | 0.20 | 0.91 | 14.62 | a | |||||||||||
1938 | 1.13 | 0.86 | 0.99 | 3.27 | 2.85 | s | 1.29 | u | 2.69 | 0.37 | 2.45 | 0.11 | ----- | z | 0.16 | 12.03 | c | |||||||||
1939 | 2.27 | 0.57 | 0.04 | 0.72 | 1.23 | 6.14 | 0.62 | 0.66 | 1.05 | 1.09 | 0.00 | 0.05 | 14.44 | |||||||||||||
1940 | 0.00 | 0.63 | 1.33 | 1.93 | y | 0.14 | 2.83 | 1.62 | 2.51 | 0.41 | 2.06 | 0.06 | 0.62 | 12.21 | a | |||||||||||
1941 | 0.55 | 0.02 | 0.22 | 4.79 | 2.35 | 5.30 | 1.93 | 1.47 | ----- | z | 2.39 | 0.15 | 0.02 | 19.19 | a | |||||||||||
1942 | 0.00 | 0.01 | 3.27 | a | 1.79 | 4.54 | 2.45 | e | 1.50 | 1.90 | 2.02 | 0.48 | 0.00 | 0.20 | 18.16 | |||||||||||
1943 | 1.20 | 0.30 | 0.40 | 0.30 | 1.21 | 4.90 | 0.55 | 2.20 | 0.25 | 1.43 | 0.50 | 0.00 | 13.24 | |||||||||||||
1944 | 1.70 | 0.50 | 0.90 | 1.95 | 2.75 | 3.20 | 3.22 | 3.60 | 0.85 | 0.75 | 1.20 | 0.30 | 20.92 | |||||||||||||
1945 | 0.26 | 0.85 | 1.20 | 0.97 | 4.50 | 4.07 | ----- | z | 0.51 | ----- | z | ----- | z | ----- | z | ----- | z | 12.36 | e | |||||||
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | 2.53 | h | 5.55 | 1.07 | 3.60 | 0.33 | 2.28 | 0.00 | 1.11 | 13.94 | e | |||||||
1952 | 1.15 | 0.94 | 0.55 | 2.56 | 0.56 | 9.26 | 1.60 | 1.28 | 0.16 | 0.01 | 1.69 | 0.21 | 19.97 | |||||||||||||
1953 | 0.38 | 1.34 | 1.28 | 4.34 | 2.10 | 5.73 | 6.72 | 3.14 | 0.41 | 1.10 | 0.67 | 0.52 | 27.73 | |||||||||||||
1954 | 0.11 | 0.45 | 0.78 | 1.56 | 1.89 | 4.46 | 1.81 | 1.15 | 1.51 | 1.75 | 0.49 | 0.28 | 16.24 | |||||||||||||
1955 | 0.15 | 0.45 | 0.02 | 0.79 | 2.60 | 3.74 | 3.57 | 2.43 | 1.29 | 0.00 | 0.18 | 0.55 | 15.77 | |||||||||||||
1956 | 0.71 | 0.25 | 0.47 | 1.15 | 3.13 | 3.58 | 3.93 | 4.03 | 0.47 | 1.82 | 1.25 | 0.15 | 20.94 | |||||||||||||
1957 | 0.28 | 0.38 | 0.27 | 4.63 | 4.64 | 4.14 | 1.99 | 3.77 | 1.79 | 3.44 | 0.98 | 0.43 | 26.74 | |||||||||||||
1958 | 0.00 | 1.96 | 0.54 | 1.85 | 2.69 | 2.39 | 2.12 | 1.00 | 0.60 | 0.23 | 1.25 | 0.34 | 14.97 | |||||||||||||
1959 | 0.24 | 0.75 | 0.07 | 0.12 | 2.43 | 1.88 | 1.61 | 1.19 | 3.05 | 1.73 | 0.49 | 0.50 | 14.06 | |||||||||||||
1960 | 0.44 | 0.48 | 0.85 | 2.09 | 1.98 | 4.83 | 2.33 | 3.33 | 1.10 | 0.73 | 0.68 | 1.16 | 20.00 | |||||||||||||
1961 | 0.00 | 0.64 | 0.54 | 0.75 | 4.26 | 0.89 | 3.31 | 1.11 | 1.55 | 3.86 | 0.00 | 0.44 | 17.35 | |||||||||||||
1962 | 0.45 | 1.55 | 1.50 | 1.05 | 7.25 | 6.78 | 3.20 | 1.55 | 1.41 | 0.33 | 0.23 | 0.11 | 25.41 | |||||||||||||
1963 | 0.40 | 0.24 | 0.36 | 2.06 | 2.55 | 2.49 | 3.91 | 1.88 | 1.06 | 1.08 | 0.49 | 0.45 | 16.97 | |||||||||||||
1964 | 0.21 | 0.15 | 0.85 | 3.21 | 3.01 | 1.93 | 2.27 | 2.16 | 0.84 | 0.05 | 0.24 | 0.49 | 15.41 | |||||||||||||
1965 | 0.08 | 0.28 | 0.78 | 2.97 | 5.63 | 3.32 | 0.99 | 2.55 | ----- | z | 0.52 | 0.10 | 0.60 | 17.82 | a | |||||||||||
1966 | 0.33 | 0.60 | 1.08 | 1.43 | 1.33 | 4.14 | 5.94 | 4.51 | 1.00 | 2.72 | 0.75 | 0.03 | 23.86 | |||||||||||||
1967 | 0.22 | 0.90 | ----- | z | 2.62 | 0.97 | 5.10 | 0.44 | 1.52 | 2.41 | 1.05 | ----- | z | ----- | z | 15.23 | c | |||||||||
1968 | ----- | z | ----- | z | 0.49 | 6.36 | ----- | z | 3.29 | ----- | z | 1.86 | ----- | z | ----- | z | 0.68 | ----- | z | 12.68 | g | |||||
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1999 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
2000 | ----- | z | ----- | z | 0.00 | x | 0.23 | 3.08 | a | 3.15 | 1.80 | 4.57 | a | 0.28 | e | 1.11 | a | 0.72 | b | 0.00 | 14.94 | c | ||||
2001 | 6.07 | 0.00 | 5.75 | b | 14.34 | t | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 11.82 | i | ||
2002 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
2004 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
2005 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
2006 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
2007 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
2008 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
2009 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
2011 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
2012 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
2013 | ----- | z | ----- | z | ----- | z | 1.13 | g | 4.60 | 3.38 | c | 1.79 | 0.21 | 1.64 | a | 1.44 | j | 0.06 | c | 0.04 | j | 11.68 | f | |||
2014 | 0.12 | l | 0.00 | c | 0.42 | c | 1.39 | c | 2.13 | b | 8.01 | 0.34 | 2.39 | a | 0.80 | 0.34 | b | 0.10 | e | 0.20 | c | 16.12 | a | |||
2015 | 0.13 | f | 0.05 | d | 0.04 | e | 0.33 | 4.98 | c | 1.76 | a | 3.94 | b | 5.33 | 0.62 | 1.03 | 0.88 | 0.24 | f | 18.96 | b | |||||
2016 | 0.02 | c | 0.12 | g | 0.09 | e | 3.39 | 2.65 | d | 1.44 | 1.17 | 3.61 | 2.37 | 0.67 | b | 0.77 | a | 0.98 | e | 17.16 | a | |||||
2017 | 0.01 | g | 0.14 | b | 0.09 | e | 0.88 | a | 0.79 | 2.32 | b | 1.56 | 3.80 | b | 3.10 | 1.01 | a | 0.03 | b | 0.01 | k | 13.72 | b | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.64 | 0.51 | 0.90 | 1.99 | 2.68 | 3.72 | 2.22 | 2.27 | 1.29 | 1.24 | 0.56 | 0.47 | 18.43 | |||||||||||||
S.D. | 1.04 | 0.45 | 1.02 | 1.55 | 1.55 | 1.95 | 1.37 | 1.32 | 0.84 | 1.03 | 0.47 | 0.47 | 4.51 | |||||||||||||
SKEW | 3.99 | 1.32 | 2.89 | 1.21 | 0.79 | 0.77 | 1.28 | 0.35 | 0.61 | 0.70 | 0.65 | 2.52 | 0.66 | |||||||||||||
MAX | 6.07 | 1.96 | 5.75 | 6.36 | 7.25 | 9.26 | 6.72 | 5.33 | 3.10 | 3.86 | 1.69 | 2.61 | 27.73 | |||||||||||||
MIN | 0.00 | 0.00 | 0.02 | 0.09 | 0.14 | 0.24 | 0.34 | 0.21 | 0.16 | 0.00 | 0.00 | 0.00 | 11.64 | |||||||||||||
YRS | 38 | 39 | 42 | 41 | 38 | 43 | 42 | 44 | 38 | 42 | 42 | 39 | 21 |