YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1914 | ----- | z | ----- | z | ----- | z | 42.24 | a | 51.39 | 64.90 | 55.65 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 53.54 | h | |||
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 | 41.69 | a | 48.35 | 61.20 | 60.42 | 67.84 | 54.37 | 35.00 | 14.13 | -15.72 | b | 40.81 | c | |||||||
1918 | 10.00 | e | ----- | z | 23.10 | 34.33 | 48.87 | 62.61 | b | 73.38 | b | 60.37 | a | 54.40 | 34.07 | a | 18.62 | a | 11.71 | 39.22 | a | |||||
1919 | 25.84 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 31.50 | u | 16.48 | a | 6.94 | 11.71 | j | |
1920 | -0.37 | d | 18.48 | 13.19 | 21.00 | 42.58 | 69.97 | 66.29 | 60.94 | ----- | z | ----- | z | ----- | z | ----- | z | 36.51 | d | |||||||
1921 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1922 | ----- | z | ----- | z | 45.26 | l | 42.06 | m | 48.36 | c | ----- | z | 62.97 | 59.75 | c | ----- | z | 43.72 | b | 24.30 | 3.18 | i | 47.82 | g | ||
1923 | 2.82 | c | 23.93 | a | 23.17 | h | 40.80 | 51.87 | 63.87 | 70.36 | c | 72.90 | 55.90 | i | 48.55 | 30.79 | a | 9.13 | 41.50 | b | ||||||
1924 | 12.84 | 16.90 | ----- | z | ----- | z | ----- | z | ----- | z | 58.23 | a | 65.74 | ----- | z | ----- | z | ----- | z | ----- | z | 38.43 | h | |||
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 | 66.15 | q | 66.58 | 59.17 | b | 49.96 | b | ----- | z | 19.80 | 19.96 | e | 43.10 | g | ||
1940 | ----- | z | ----- | z | ----- | z | ----- | z | 54.22 | m | 63.81 | c | 70.58 | 64.36 | c | 53.27 | d | 42.19 | o | ----- | z | ----- | z | 63.01 | h | |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 64.20 | y | 64.07 | a | 68.73 | i | 52.54 | d | 32.39 | 12.53 | 12.39 | 34.78 | g | |||
1942 | 17.74 | 25.29 | 23.97 | 38.89 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9.27 | -3.77 | a | 14.50 | g | ||||
1943 | 3.23 | 20.48 | c | 21.40 | a | 42.00 | 53.93 | b | 64.86 | a | 62.73 | a | 58.84 | 47.83 | a | 38.07 | a | 25.96 | b | 21.29 | 38.38 | |||||
1944 | 14.58 | 24.24 | 23.77 | 37.63 | 51.29 | 65.90 | a | 69.54 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 36.24 | f | |||||
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 63.65 | h | 59.81 | 45.45 | a | 34.71 | 17.07 | 20.42 | 35.49 | g | ||||
1961 | 14.60 | a | 9.56 | a | 14.45 | 33.10 | 50.58 | 60.40 | 63.43 | a | 59.19 | 47.33 | 27.45 | 11.29 | b | -4.50 | a | 32.24 | ||||||||
1962 | 9.07 | a | 17.82 | 22.32 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 40.04 | d | 33.58 | 13.41 | a | 8.32 | 20.65 | e | ||||
1963 | 18.55 | b | ----- | z | ----- | z | ----- | z | ----- | z | 55.93 | a | 61.00 | a | 63.29 | 56.45 | a | 38.55 | 9.29 | b | 18.71 | 40.22 | d | |||
1964 | 9.16 | 21.86 | 16.42 | 35.48 | a | 41.68 | 64.20 | t | 65.43 | x | 58.81 | 52.93 | 36.23 | ----- | z | -0.39 | 30.24 | c | ||||||||
1965 | 2.80 | a | ----- | z | 36.35 | 36.07 | ----- | z | ----- | z | 64.17 | a | 61.03 | b | ----- | z | ----- | z | ----- | z | 5.03 | 34.24 | f | |||
1966 | -2.97 | a | 15.00 | 18.06 | 36.33 | 44.58 | 64.67 | 66.45 | 57.61 | 49.67 | 26.97 | b | 17.76 | a | 3.53 | a | 33.14 | |||||||||
1967 | ----- | z | 13.32 | 22.67 | a | 36.81 | d | 47.61 | 63.29 | f | 59.16 | 59.31 | e | 49.24 | a | 29.55 | b | 24.76 | a | 8.48 | 35.09 | b | ||||
1968 | 5.00 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 5.00 | k |
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 | 19.42 | p | 21.58 | l | 34.97 | a | 45.77 | r | 60.74 | k | 62.45 | i | ----- | z | ----- | z | 40.88 | w | 12.94 | l | 0.19 | j | 34.97 | k |
1976 | 11.00 | o | 12.18 | r | ----- | z | 36.14 | w | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 35.48 | 3.00 | y | 3.87 | h | 35.48 | k | |
1978 | 14.59 | n | 18.64 | c | 28.67 | g | 36.19 | i | 52.65 | 59.04 | e | 65.62 | b | 66.89 | d | 52.28 | e | 34.69 | e | 17.87 | 11.96 | f | 45.96 | d | ||
1979 | 9.61 | -2.77 | b | 27.39 | 37.07 | a | 48.39 | h | 61.64 | p | 65.18 | c | 65.28 | b | 54.42 | f | 39.61 | 28.21 | a | 0.40 | a | 30.00 | c | |||
1980 | 7.23 | a | 25.33 | b | 25.80 | a | 41.62 | a | 52.73 | a | 62.77 | h | 64.29 | c | 59.27 | a | 47.31 | d | 36.41 | b | 24.07 | a | -10.66 | b | 33.95 | a |
1981 | 27.90 | b | 22.21 | d | 34.79 | c | 35.61 | b | 56.54 | e | 61.79 | f | 58.41 | b | 58.68 | c | 47.52 | c | 32.97 | b | 15.83 | a | 9.38 | b | 36.35 | a |
1982 | -6.64 | f | 10.71 | d | 25.10 | j | 32.83 | a | 47.07 | d | 61.21 | a | 66.38 | e | 61.79 | b | 49.96 | f | 24.48 | d | 15.76 | a | 12.31 | b | 36.95 | c |
1983 | 4.89 | d | 19.17 | d | 27.04 | e | 40.10 | 51.28 | f | 63.59 | a | 65.65 | 55.62 | b | 44.30 | 32.07 | c | 17.48 | a | 6.44 | f | 36.99 | b | |||
1984 | 11.44 | d | 12.62 | c | 32.33 | a | 37.00 | 49.84 | f | ----- | z | 60.80 | a | 60.93 | a | 53.11 | c | 33.61 | c | 12.27 | 13.41 | b | 32.75 | b | ||
1985 | ----- | z | 6.85 | b | 25.21 | c | 28.04 | d | 46.74 | 60.43 | p | 65.48 | b | 56.68 | 47.54 | d | 26.17 | a | 5.54 | b | 24.21 | c | 33.25 | b | ||
1986 | 14.71 | c | 17.93 | a | 21.37 | d | 27.75 | b | 48.93 | b | 63.29 | i | 67.60 | a | 56.14 | b | 52.19 | d | 36.24 | b | 13.41 | c | 23.44 | d | 34.52 | a |
1987 | 17.70 | a | 19.48 | e | 25.69 | e | 38.73 | 51.66 | b | 60.81 | c | 66.48 | d | 63.71 | c | 46.70 | c | 36.34 | b | 21.07 | 11.33 | d | 38.31 | |||
1988 | 9.58 | e | 19.68 | g | 27.18 | c | 37.40 | 49.48 | j | 63.86 | a | 67.45 | 57.64 | f | ----- | z | 30.65 | e | 9.46 | b | 16.07 | c | 32.71 | d | ||
1989 | -3.66 | b | 10.88 | d | 22.25 | g | 40.86 | a | 53.52 | j | 62.47 | 71.54 | c | 66.76 | b | 52.09 | g | 31.83 | a | ----- | z | 21.72 | f | 40.10 | e | |
1990 | 7.10 | 2.26 | e | 27.15 | d | 40.60 | ----- | z | 64.57 | b | 69.47 | a | 62.93 | c | 48.27 | d | ----- | z | 3.52 | a | 7.89 | c | 33.38 | b | ||
1991 | 6.71 | 19.12 | d | 24.48 | d | 37.38 | a | 52.24 | j | 66.26 | c | 63.10 | 57.54 | c | 51.70 | g | 29.76 | b | 14.48 | a | 13.79 | b | 33.26 | b | ||
1992 | 17.30 | d | 13.64 | d | 22.04 | h | 31.96 | c | 40.89 | d | 65.55 | h | 64.34 | b | 57.19 | 37.37 | c | 27.52 | b | 20.31 | a | 4.11 | c | 31.46 | b | |
1993 | 6.07 | b | 20.79 | d | 29.00 | k | 42.04 | b | 57.33 | a | 65.24 | a | 70.03 | 60.22 | d | 49.08 | e | 35.32 | c | 19.15 | c | 16.10 | b | 40.13 | a | |
1994 | 13.04 | c | 10.26 | i | 25.62 | b | 39.45 | a | 48.60 | k | 61.79 | a | 66.83 | b | 69.69 | b | 47.57 | i | 29.69 | b | 11.92 | d | 12.42 | l | 39.75 | d |
1995 | 10.52 | b | 16.50 | f | 16.96 | e | 42.07 | c | 54.79 | b | 63.31 | d | 63.69 | b | 58.60 | f | 53.85 | c | 36.59 | b | 12.76 | a | 6.00 | i | 39.39 | c |
1996 | -10.87 | a | 18.11 | b | 25.43 | c | 41.85 | c | 52.43 | j | 63.73 | 66.00 | h | 57.41 | b | 47.04 | g | 22.66 | b | 8.00 | e | 7.60 | f | 28.29 | d | |
1997 | 5.10 | b | 27.04 | d | 17.91 | h | 38.90 | a | 50.92 | f | 65.07 | a | 67.78 | d | 60.15 | e | 53.52 | c | 26.11 | d | 22.96 | b | 14.30 | d | 38.09 | b |
1998 | 1.43 | q | 20.00 | f | 30.29 | 41.11 | b | 51.86 | c | 62.89 | c | 64.41 | b | 55.17 | b | 48.04 | d | 30.67 | m | 16.68 | b | 6.79 | c | 41.91 | c | |
1999 | 3.88 | e | 5.04 | c | 23.91 | h | 36.79 | f | 48.83 | g | 65.90 | a | 64.66 | b | 61.83 | a | 48.80 | e | 31.28 | f | 13.18 | b | 16.94 | m | 37.61 | e |
2000 | 11.12 | e | 25.21 | e | 28.19 | d | 36.04 | g | 44.92 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 21.50 | i |
2001 | ----- | z | ----- | z | 24.80 | u | 39.93 | 46.65 | 66.76 | a | 61.68 | 61.80 | a | 52.15 | d | 29.43 | a | 8.67 | c | -5.24 | n | 45.88 | d | |||
2002 | ----- | z | 16.33 | d | 20.62 | b | 31.64 | b | 57.39 | h | 61.90 | 64.29 | ----- | z | 50.72 | e | ----- | z | ----- | z | ----- | z | 40.92 | f | ||
2003 | 10.80 | a | 27.88 | d | 18.76 | b | 35.86 | b | 50.93 | b | 63.07 | 67.67 | a | 59.65 | 46.00 | ----- | z | ----- | z | ----- | z | 42.29 | c | |||
2004 | ----- | z | 27.92 | e | 25.62 | r | 42.13 | o | 57.47 | a | 71.31 | a | 68.84 | 70.21 | b | 42.62 | f | 34.34 | b | 22.85 | c | 17.00 | p | 50.42 | e | |
2005 | 6.50 | g | 17.17 | e | 30.39 | 39.00 | d | 56.97 | 65.76 | a | 64.03 | a | 63.42 | 48.80 | 34.67 | a | 9.64 | b | ----- | z | 42.98 | b | ||||
2006 | -0.73 | a | 14.44 | a | 16.26 | 34.07 | c | 51.69 | b | 60.21 | a | 65.24 | f | 55.83 | a | 51.13 | 35.35 | -0.83 | 17.72 | b | 30.47 | a | ||||
2007 | 14.04 | d | 9.21 | 5.93 | d | 40.62 | a | 52.03 | b | 65.86 | a | 64.65 | 63.53 | a | 49.37 | 32.07 | b | 23.07 | a | 11.74 | d | 36.01 | ||||
2008 | 5.80 | a | 16.71 | h | ----- | z | 34.33 | f | 51.52 | d | 60.41 | a | 59.29 | c | 55.70 | a | 47.46 | b | 25.50 | a | 16.48 | a | 3.84 | 36.22 | c | |
2009 | 2.83 | a | 6.15 | o | 17.29 | g | 34.66 | a | 53.30 | a | 62.77 | 71.10 | 58.32 | 52.43 | 38.00 | 14.24 | i | 12.85 | e | 42.92 | c | |||||
2010 | 7.50 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 7.50 | k |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 8.38 | 17.00 | 23.52 | 37.02 | 50.41 | 63.60 | 65.03 | 61.17 | 49.48 | 33.16 | 15.93 | 9.45 | 35.62 | |||||||||||||
S.D. | 7.18 | 7.26 | 6.42 | 4.58 | 4.33 | 2.91 | 3.82 | 4.18 | 3.94 | 5.20 | 6.72 | 9.15 | 2.86 | |||||||||||||
SKEW | -0.04 | -0.67 | -0.42 | -1.33 | -0.42 | 0.14 | -0.15 | 0.86 | -0.93 | 0.36 | -0.06 | -0.74 | -0.15 | |||||||||||||
MAX | 27.90 | 27.92 | 36.35 | 42.24 | 57.47 | 71.31 | 73.38 | 72.90 | 56.45 | 48.55 | 30.79 | 24.21 | 38.38 | |||||||||||||
MIN | -10.87 | -2.77 | 5.93 | 21.00 | 40.89 | 55.93 | 55.65 | 55.17 | 37.37 | 22.66 | -0.83 | -15.72 | 32.24 | |||||||||||||
YRS | 39 | 36 | 32 | 40 | 31 | 35 | 45 | 44 | 36 | 40 | 42 | 35 | 5 |