YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1904 | ----- | z | ----- | z | ----- | z | ----- | z | 44.55 | a | ----- | z | 52.47 | 48.21 | 29.93 | a | 18.05 | ----- | z | ----- | z | 38.64 | g | |||
1905 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 58.79 | b | 64.47 | 54.54 | b | 28.79 | c | 7.42 | ----- | z | 42.80 | g | ||
1906 | ----- | z | ----- | z | 20.52 | b | ----- | z | ----- | z | 67.90 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 44.21 | j | |
1907 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1908 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1909 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1910 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1911 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1912 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1913 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1914 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1915 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1916 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1917 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1918 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1921 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1925 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 37.32 | 45.60 | 56.55 | 57.13 | 55.69 | 39.69 | a | 19.97 | b | -3.57 | b | -17.88 | b | 32.28 | c | |||||
1942 | 0.72 | b | 7.92 | b | 11.90 | b | 29.67 | a | 49.71 | 56.19 | a | 57.71 | 52.11 | 45.10 | 28.55 | b | -6.86 | b | -27.00 | b | 25.48 | |||||
1943 | -25.27 | c | -3.21 | d | 9.71 | b | 30.87 | 49.61 | ----- | z | ----- | z | 52.19 | 43.73 | 27.79 | b | 7.37 | -0.86 | c | 19.19 | b | |||||
1944 | -9.19 | b | 0.09 | 10.71 | 25.32 | 48.44 | v | 57.34 | a | 60.10 | 52.55 | 40.57 | 28.80 | a | 2.73 | -4.74 | 24.02 | a | ||||||||
1945 | -6.87 | 0.89 | 9.47 | 22.58 | 42.85 | 52.82 | 56.29 | 54.74 | 41.60 | 23.77 | -8.03 | -8.87 | 23.44 | |||||||||||||
1946 | -11.98 | -0.48 | a | 4.35 | 28.18 | 47.92 | 61.24 | a | 60.15 | 52.82 | 41.57 | 28.05 | -8.44 | c | -29.16 | b | 22.85 | |||||||||
1947 | -23.62 | b | -8.05 | 17.24 | 29.92 | 47.77 | 53.30 | 62.05 | 50.45 | 40.25 | 24.08 | 8.93 | -4.55 | b | 24.81 | |||||||||||
1948 | -5.63 | -9.16 | 3.48 | 23.96 | c | 45.82 | a | 57.45 | b | 59.29 | 50.71 | 39.40 | 25.13 | -2.08 | -25.16 | 21.93 | ||||||||||
1949 | -12.13 | -17.91 | 15.89 | 25.35 | 42.18 | 49.47 | 57.60 | 54.82 | 46.02 | 21.13 | ----- | z | ----- | z | 28.24 | b | ||||||||||
1950 | -5.94 | -23.73 | 9.94 | 25.00 | 44.94 | 59.27 | 58.16 | 54.73 | ----- | z | 24.58 | -12.52 | -8.23 | 20.56 | a | |||||||||||
1951 | -25.45 | -12.68 | -0.60 | 32.93 | 45.74 | 51.88 | 59.63 | 55.92 | a | 44.85 | 15.83 | a | ----- | z | -11.32 | c | 23.34 | a | ||||||||
1952 | -21.98 | f | -6.74 | b | 8.64 | j | 27.62 | b | 39.76 | b | 53.59 | c | 57.43 | j | 50.29 | j | 40.08 | e | 29.12 | c | 10.09 | g | -14.42 | f | 30.57 | f |
1953 | -34.35 | -0.18 | 5.55 | a | 33.61 | c | 49.02 | d | 59.31 | a | 59.05 | k | 54.63 | d | 41.38 | i | 23.09 | b | -3.86 | e | -11.98 | c | 17.48 | b | ||
1954 | -16.68 | -15.69 | a | 11.27 | 21.70 | 47.59 | b | 55.82 | 58.29 | b | 55.15 | a | 41.73 | 27.62 | a | 12.65 | c | -20.63 | p | 27.22 | a | |||||
1955 | ----- | z | -3.33 | v | 5.90 | a | 24.10 | 39.32 | 51.40 | 58.63 | 50.23 | 39.29 | a | 19.63 | d | -17.43 | c | -18.32 | 25.28 | b | ||||||
1956 | -26.84 | b | -12.44 | b | 2.71 | 26.83 | 43.23 | 53.81 | a | 57.48 | a | 52.10 | b | 37.73 | d | 14.98 | d | -0.91 | b | -27.50 | c | 18.43 | ||||
1957 | -6.82 | c | -1.96 | d | 15.76 | 28.50 | 41.09 | b | 58.53 | 58.09 | d | 53.20 | i | 37.80 | 24.40 | 11.67 | -19.28 | a | 22.53 | a | ||||||
1958 | -9.50 | c | -3.69 | d | 14.31 | b | 31.25 | 44.15 | 57.63 | 57.72 | a | 53.95 | a | 39.27 | b | 12.39 | -0.93 | j | -15.90 | a | 25.60 | a | ||||
1959 | -22.71 | g | 1.73 | 0.37 | 29.10 | j | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | -2.00 | u | -12.92 | r | 1.05 | j | ||
1960 | -11.77 | g | 0.73 | e | -2.90 | p | 30.56 | m | 39.75 | y | ----- | z | 54.79 | l | 52.97 | o | 39.05 | 26.23 | g | ----- | z | -3.73 | a | 12.02 | i | |
1961 | -12.98 | a | -7.06 | a | -3.74 | f | ----- | z | 44.02 | a | 56.10 | i | 54.98 | 49.94 | 38.75 | 19.15 | a | -6.87 | -28.88 | a | 16.78 | c | ||||
1962 | -8.75 | a | 3.71 | b | 7.47 | 31.27 | f | 42.87 | d | 53.57 | a | 61.20 | d | 57.85 | e | 39.43 | 28.26 | d | 8.86 | b | -5.93 | b | 26.23 | a | ||
1963 | -2.20 | a | 1.00 | a | 9.97 | 25.17 | 44.67 | a | 51.35 | 57.98 | a | 54.26 | 44.57 | 27.03 | -7.85 | f | -8.00 | 27.80 | a | |||||||
1964 | -20.95 | 3.16 | -1.37 | 26.87 | 34.90 | 57.27 | 54.16 | ----- | z | 41.14 | i | ----- | z | ----- | z | ----- | z | 22.00 | e | |||||||
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 11.57 | i | -6.73 | b | -14.74 | b | -10.74 | j |
1966 | -14.74 | b | -8.17 | e | 16.38 | s | ----- | z | ----- | z | ----- | z | ----- | z | 54.82 | t | ----- | z | ----- | z | ----- | z | ----- | z | -11.46 | j |
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 57.57 | d | 51.57 | a | 42.38 | d | ----- | z | ----- | z | ----- | z | 50.51 | i |
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1999 | ----- | z | ----- | z | ----- | z | ----- | z | 42.11 | 56.63 | 59.05 | 55.48 | 42.92 | 23.47 | a | -4.77 | b | -10.90 | a | 33.00 | d | |||||
2000 | -15.53 | a | 8.55 | 15.81 | 29.63 | 41.63 | 55.88 | 57.97 | 49.74 | 39.78 | 18.02 | a | 5.33 | a | -8.00 | a | 24.90 | |||||||||
2001 | -1.50 | 0.59 | 14.85 | r | 32.68 | s | ----- | z | ----- | z | ----- | z | ----- | z | 40.08 | x | 27.30 | p | ----- | z | ----- | z | -0.46 | j | ||
2002 | ----- | z | 0.92 | p | 12.75 | s | 23.92 | r | ----- | z | 55.00 | q | ----- | z | 52.75 | u | 45.35 | q | ----- | z | ----- | z | ----- | z | ----- | z |
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 67.12 | v | 62.61 | q | 22.29 | q | 29.06 | n | ----- | z | ----- | z | ----- | z | ----- | z |
2004 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 73.72 | u | 71.00 | q | 70.15 | r | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2005 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2006 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2007 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | -13.46 | -4.11 | 9.11 | 27.92 | 44.21 | 56.01 | 58.02 | 53.51 | 41.20 | 23.27 | -0.86 | -14.13 | 23.12 | |||||||||||||
S.D. | 9.29 | 7.98 | 6.08 | 3.91 | 3.54 | 3.95 | 2.10 | 3.34 | 4.25 | 4.89 | 8.51 | 8.90 | 2.42 | |||||||||||||
SKEW | -0.53 | -0.65 | -0.05 | 0.54 | -0.50 | 0.97 | -0.67 | 1.30 | 0.60 | -0.57 | -0.00 | -0.42 | -1.03 | |||||||||||||
MAX | 0.72 | 8.55 | 20.52 | 37.32 | 49.71 | 67.90 | 62.05 | 64.47 | 54.54 | 29.12 | 12.65 | -0.86 | 25.48 | |||||||||||||
MIN | -34.35 | -23.73 | -1.37 | 21.70 | 34.90 | 49.47 | 52.47 | 48.21 | 29.93 | 12.39 | -17.43 | -29.16 | 18.43 | |||||||||||||
YRS | 22 | 25 | 22 | 21 | 24 | 23 | 24 | 24 | 25 | 25 | 20 | 22 | 7 |