YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 40.59 | a | 31.87 | 18.37 | 3.23 | 23.51 | h | |||
1958 | 3.48 | -3.25 | 14.43 | a | 26.30 | 35.06 | 39.77 | 49.97 | 48.40 | a | 43.82 | b | 32.55 | 18.33 | -8.16 | 25.06 | ||||||||||
1959 | -12.00 | -5.46 | 11.26 | 23.47 | 38.97 | 47.77 | 52.77 | 53.00 | 42.66 | a | 30.48 | 6.80 | 13.26 | 25.25 | ||||||||||||
1960 | -1.48 | -0.21 | 2.87 | 26.37 | 38.10 | 44.47 | 49.87 | 52.68 | 42.23 | 32.65 | 21.07 | -2.06 | 25.54 | |||||||||||||
1961 | -6.68 | 7.75 | 19.12 | n | 24.03 | a | 34.45 | 45.97 | 51.59 | b | 51.13 | 43.20 | 34.13 | 18.89 | b | 3.87 | 28.03 | a | ||||||||
1962 | -9.42 | -3.96 | 14.87 | 22.60 | 39.97 | 45.20 | 49.23 | 49.25 | c | 38.81 | i | 37.20 | f | 22.38 | n | ----- | z | 25.97 | d | |||||||
1963 | -15.75 | k | -6.79 | i | 9.85 | k | 25.96 | d | 35.23 | 49.04 | c | 55.53 | a | 49.67 | d | 45.08 | d | 44.61 | 26.47 | k | -7.05 | l | 43.59 | e | ||
1964 | 5.23 | i | 2.39 | k | 4.12 | e | 25.32 | b | 40.93 | a | 46.07 | 52.55 | 46.29 | 40.18 | b | 31.16 | 20.86 | h | -1.96 | c | 31.63 | c | ||||
1965 | -8.55 | -9.68 | c | 4.81 | 25.55 | a | 38.97 | 44.00 | 48.17 | g | 45.52 | f | ----- | z | ----- | z | 12.88 | n | 9.14 | q | 15.85 | f | ||||
1966 | -15.89 | d | -2.00 | 15.03 | 21.72 | a | 30.87 | a | 47.14 | a | 55.00 | 48.59 | b | 42.23 | 30.89 | c | 12.66 | a | 1.64 | c | 23.99 | |||||
1967 | -2.55 | -10.96 | 11.23 | 22.24 | a | 28.94 | 46.72 | a | 50.26 | 47.61 | 42.83 | 30.16 | 17.07 | a | 6.55 | 24.17 | ||||||||||
1968 | -3.30 | a | -3.76 | 18.77 | a | 27.33 | 36.45 | 45.83 | 52.13 | a | 48.34 | b | 43.60 | 35.48 | b | 19.86 | b | 2.55 | 26.94 | |||||||
1969 | -1.93 | a | 5.04 | a | 6.35 | 28.70 | 36.73 | a | 41.24 | a | 51.45 | 53.90 | 43.30 | 28.94 | 17.14 | a | 9.19 | 26.67 | ||||||||
1970 | -7.35 | -4.79 | 4.90 | 23.93 | 33.29 | 47.83 | 55.06 | 50.03 | 42.45 | a | 33.19 | 16.86 | a | 3.30 | a | 24.89 | ||||||||||
1971 | -11.82 | c | 1.60 | c | 8.19 | 24.77 | 33.35 | 47.67 | 47.90 | 47.16 | 42.00 | 35.68 | 17.43 | b | 0.36 | i | 26.72 | a | ||||||||
1972 | -18.36 | f | -6.70 | f | 6.28 | b | 23.04 | d | 40.73 | a | 45.87 | 49.41 | b | 48.65 | 40.93 | 30.06 | 18.14 | h | -4.78 | d | 31.13 | c | ||||
1973 | 3.35 | 1.22 | a | 22.67 | d | 25.50 | 35.48 | 46.53 | 51.87 | 52.65 | ----- | z | ----- | z | ----- | z | ----- | z | 29.91 | d | ||||||
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 45.93 | a | 53.29 | 48.97 | 39.13 | 33.13 | 22.22 | l | 1.07 | q | 44.09 | g | ||||
1976 | -12.06 | m | 5.76 | l | 4.18 | t | 26.05 | j | 35.00 | 50.40 | 51.26 | 50.00 | c | ----- | z | 22.00 | e | ----- | z | ----- | z | 41.73 | g | |||
1977 | ----- | z | ----- | z | 13.33 | s | 31.08 | d | 43.42 | 46.80 | 53.21 | c | 44.30 | d | 41.31 | d | 31.86 | c | 19.40 | j | 7.00 | o | 41.71 | e | ||
1978 | -4.46 | r | -7.33 | j | 6.93 | p | ----- | z | 40.10 | b | 46.39 | b | 50.45 | 49.97 | 43.44 | c | 34.87 | 12.88 | m | -1.17 | m | 44.21 | f | |||
1979 | -17.89 | m | -6.92 | o | 1.11 | v | 19.20 | o | ----- | z | 43.87 | 53.13 | 47.48 | b | 43.29 | b | 28.67 | j | 15.79 | p | 7.38 | o | 46.94 | h | ||
1980 | -8.00 | r | -4.07 | n | 4.20 | p | 26.35 | j | 40.59 | d | 45.73 | 53.00 | 51.20 | a | 40.07 | o | 26.45 | t | 16.17 | r | -3.00 | n | 47.63 | h | ||
1981 | -6.00 | o | -0.94 | j | 11.64 | t | 24.75 | n | 35.43 | j | 47.59 | h | 51.71 | 53.22 | d | ----- | z | 29.20 | p | ----- | z | 1.00 | m | 52.47 | j | |
1982 | -19.35 | n | -8.00 | j | ----- | z | ----- | z | 36.81 | j | 43.24 | i | 50.67 | m | ----- | z | 48.19 | c | ----- | z | 14.29 | p | 1.56 | o | 48.19 | k |
1983 | -1.71 | n | 3.88 | l | 10.89 | l | 20.86 | p | 33.15 | k | 44.23 | d | 55.93 | d | 55.13 | a | 44.93 | b | 31.37 | l | 18.69 | q | -13.71 | n | 50.05 | h |
1984 | -14.30 | k | 10.67 | k | 3.95 | l | 25.91 | h | 35.93 | c | 47.39 | b | 53.23 | a | 50.90 | 36.80 | 29.50 | o | 10.47 | m | -1.82 | n | 44.85 | g | ||
1985 | -10.37 | l | -4.80 | m | 16.25 | o | 24.61 | l | 37.11 | d | 39.20 | 46.86 | b | 45.37 | a | 37.77 | 27.62 | j | 7.35 | m | -13.88 | n | 41.26 | g | ||
1986 | -7.71 | n | -0.33 | p | 11.95 | k | 27.05 | i | 36.17 | h | 43.34 | a | 50.14 | b | 44.47 | a | 38.28 | e | 29.89 | l | 8.64 | s | 10.41 | n | 44.06 | h |
1987 | 8.44 | o | 10.50 | n | 16.93 | q | 25.36 | h | 38.15 | d | 46.32 | e | 50.89 | d | 47.41 | d | 40.28 | l | 26.50 | o | 15.17 | r | 9.00 | q | 45.69 | h |
1988 | -14.21 | l | -13.50 | i | 8.90 | j | 21.75 | j | 36.92 | e | 46.24 | e | 50.97 | b | 53.44 | f | 40.95 | i | 20.83 | s | 13.05 | k | -5.74 | l | 44.71 | i |
1989 | -5.47 | l | -17.79 | i | 2.10 | j | 18.26 | k | 33.22 | d | 42.15 | c | 50.26 | d | 48.58 | l | 38.82 | h | 24.60 | p | 12.14 | p | -16.93 | p | 41.88 | i |
1990 | 1.08 | s | -0.64 | q | 10.08 | r | 30.47 | m | 29.31 | e | 41.10 | j | 44.04 | f | 42.96 | c | 37.19 | c | 23.83 | m | 16.93 | o | -8.67 | p | 36.49 | i |
1991 | -15.12 | o | -4.43 | n | 0.50 | o | 16.95 | k | 33.57 | j | 40.50 | f | 46.40 | f | 41.40 | f | 33.64 | e | 20.81 | o | 6.50 | r | -10.56 | m | 33.64 | k |
1992 | -3.33 | j | -0.63 | j | 0.29 | j | 15.14 | h | 39.11 | c | 43.90 | 46.19 | 47.52 | 41.07 | 30.24 | j | 17.28 | l | 2.82 | i | 43.56 | g | ||||
1993 | -3.00 | m | 0.11 | i | 13.57 | h | 23.25 | j | 36.96 | d | 45.40 | 52.52 | 53.26 | 37.57 | b | 26.85 | k | 13.45 | j | 18.80 | p | 45.14 | g | |||
1994 | ----- | z | -13.00 | v | 14.22 | h | 24.50 | j | 40.68 | c | 50.53 | 52.58 | 50.10 | 46.77 | 34.56 | m | 19.79 | k | 11.29 | j | 48.13 | g | ||||
1995 | -0.42 | l | -3.95 | i | 12.65 | h | 20.80 | j | 37.66 | b | 54.53 | 54.65 | 55.24 | b | 41.59 | a | 32.67 | j | 6.62 | i | -6.33 | p | 48.73 | g | ||
1996 | -12.47 | p | -5.15 | i | 3.48 | j | 22.32 | h | 35.73 | e | 50.70 | 50.61 | 53.34 | b | 46.28 | e | 29.38 | j | 9.80 | o | -0.43 | q | 47.33 | g | ||
1997 | -12.00 | t | 0.75 | p | 6.46 | r | 21.21 | p | 33.79 | c | 51.50 | 53.13 | 50.23 | 45.66 | a | 29.57 | j | 14.50 | l | 15.36 | i | 46.86 | g | |||
1998 | 2.50 | q | 19.87 | m | 13.46 | g | 30.58 | d | 42.50 | a | 47.90 | 52.16 | 54.19 | 46.43 | 33.42 | g | 20.17 | l | 2.29 | q | 45.63 | f | ||||
1999 | -8.92 | r | 4.43 | n | 16.44 | m | 29.95 | h | 42.34 | b | 48.31 | a | 55.73 | a | 50.52 | 42.90 | 27.23 | i | 25.20 | e | 7.61 | h | 44.17 | f | ||
2000 | -7.88 | n | 8.45 | i | 21.17 | g | 25.84 | e | 39.71 | c | 41.28 | a | 52.29 | 52.52 | 41.00 | a | 36.32 | f | 21.69 | d | -10.60 | k | 39.19 | e | ||
2001 | 5.58 | l | -7.00 | m | 11.19 | o | 28.72 | e | 41.60 | a | 49.87 | 53.55 | 54.55 | b | 43.93 | 31.64 | f | 27.62 | i | 14.76 | n | 45.37 | f | |||
2002 | 4.55 | k | 5.47 | i | 4.53 | l | 24.83 | g | 33.20 | a | 50.33 | 57.26 | 53.32 | 46.63 | 26.81 | e | 13.13 | g | 7.71 | j | 44.59 | f | ||||
2003 | -7.26 | l | -9.67 | j | 8.95 | i | 23.29 | i | 38.17 | b | 46.69 | a | 53.52 | 54.63 | a | 45.33 | 32.07 | b | 16.44 | e | 10.20 | f | 40.98 | e | ||
2004 | -12.69 | e | 1.93 | 15.81 | 25.17 | 34.52 | 44.23 | 50.29 | 45.93 | a | 48.24 | a | 34.55 | 22.00 | i | ----- | z | 28.80 | b | |||||||
2005 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 53.74 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 53.74 | k | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | -6.20 | -1.90 | 10.77 | 25.63 | 37.01 | 46.29 | 52.03 | 50.10 | 42.43 | 32.24 | 17.70 | 2.22 | 25.32 | |||||||||||||
S.D. | 5.99 | 5.22 | 5.99 | 2.56 | 3.54 | 3.13 | 2.35 | 3.21 | 3.30 | 4.21 | 4.28 | 5.93 | 1.06 | |||||||||||||
SKEW | 0.16 | 0.03 | 0.38 | 0.56 | -0.32 | 0.03 | -0.20 | -0.24 | -0.45 | 0.48 | -0.91 | 0.07 | 0.37 | |||||||||||||
MAX | 3.48 | 7.75 | 22.67 | 31.08 | 43.42 | 54.53 | 57.26 | 55.24 | 48.24 | 44.61 | 25.20 | 13.26 | 26.94 | |||||||||||||
MIN | -15.89 | -10.96 | 2.87 | 21.72 | 28.94 | 39.20 | 46.19 | 42.96 | 33.64 | 22.00 | 6.80 | -8.16 | 23.99 | |||||||||||||
YRS | 14 | 14 | 15 | 21 | 39 | 42 | 43 | 41 | 38 | 21 | 14 | 12 | 8 |