YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1906 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 39.81 | o | ----- | z |
1921 | 39.58 | 40.07 | 46.10 | 42.47 | 50.42 | 55.23 | 60.84 | 58.58 | 53.53 | 52.58 | 44.17 | 45.06 | 49.05 | |||||||||||||
1922 | 36.45 | 41.54 | 41.61 | 42.70 | 50.19 | 53.53 | 58.81 | 58.13 | 58.37 | 48.68 | 39.40 | 44.58 | 47.83 | |||||||||||||
1923 | 40.16 | 39.25 | 40.23 | 48.13 | 50.06 | 50.73 | 56.39 | 58.84 | 56.17 | 48.23 | 43.70 | 39.42 | 47.61 | |||||||||||||
1924 | 35.47 | a | 43.31 | 42.29 | 47.80 | 52.13 | 54.37 | 56.06 | 56.45 | 56.23 | 50.58 | 47.03 | 41.81 | 48.63 | ||||||||||||
1925 | 41.48 | 47.46 | 48.81 | 52.17 | 55.90 | 59.53 | 62.61 | 62.52 | 56.30 | 54.13 | 48.70 | 48.32 | 53.16 | |||||||||||||
1926 | 44.03 | 49.21 | 52.23 | 56.10 | 55.16 | 60.83 | 61.87 | 63.39 | 56.67 | 55.58 | 51.03 | 44.00 | 54.18 | |||||||||||||
1927 | 44.58 | 48.50 | 47.68 | 49.10 | 53.48 | 56.50 | 60.39 | 60.39 | 58.18 | b | 55.23 | 52.10 | 45.84 | 52.66 | ||||||||||||
1928 | 45.23 | 46.45 | 51.16 | 49.87 | 57.29 | 57.37 | 61.61 | 49.13 | 57.43 | 52.61 | 49.27 | 44.81 | 51.85 | |||||||||||||
1929 | 43.48 | 42.82 | 46.48 | 49.47 | 55.90 | 57.87 | 63.39 | 64.03 | 60.83 | 57.90 | 49.28 | a | 48.87 | 53.36 | ||||||||||||
1930 | 44.90 | 48.75 | 50.06 | 52.57 | 52.10 | 58.13 | 61.74 | 63.16 | 59.23 | 53.94 | 51.37 | 43.61 | 53.30 | |||||||||||||
1931 | 47.23 | 49.75 | 52.03 | 55.23 | 59.80 | a | 60.33 | 68.19 | 66.42 | 59.46 | b | 57.23 | 48.43 | 43.74 | 55.65 | |||||||||||
1932 | 42.06 | 46.14 | 50.35 | 50.37 | 55.81 | 57.17 | 60.42 | 60.65 | 60.20 | 56.96 | e | 52.41 | a | 43.81 | 53.03 | |||||||||||
1933 | 42.58 | 43.32 | 47.45 | 50.30 | 50.52 | 54.93 | 60.32 | 61.87 | 57.37 | 56.71 | 49.83 | 46.03 | 51.77 | |||||||||||||
1934 | 46.03 | 50.50 | 53.45 | 54.57 | 57.19 | 58.27 | 62.42 | 61.87 | 61.03 | 55.90 | 52.03 | 48.32 | 55.13 | |||||||||||||
1935 | 45.61 | 48.36 | 45.84 | 51.70 | 54.48 | 58.90 | 60.68 | c | 63.63 | a | 60.03 | 56.94 | m | 46.72 | e | 45.32 | 52.84 | a | ||||||||
1936 | 45.94 | 46.72 | 49.45 | 50.17 | 55.32 | 58.47 | 64.23 | a | 63.16 | 60.47 | 57.23 | 50.57 | 45.67 | d | 53.95 | |||||||||||
1937 | 36.79 | b | 45.96 | 47.26 | 49.40 | 55.48 | 57.93 | 61.65 | 62.13 | 61.53 | 56.33 | a | 50.30 | 48.55 | 52.78 | |||||||||||
1938 | 45.55 | 47.14 | 47.29 | 50.87 | 53.81 | 57.43 | 59.94 | 62.81 | 61.60 | 53.84 | 46.17 | 48.52 | 52.91 | |||||||||||||
1939 | 45.19 | 42.25 | 47.23 | 52.97 | 53.90 | 56.80 | 61.16 | 61.97 | 63.57 | 54.87 | a | 52.30 | 48.42 | 53.39 | ||||||||||||
1940 | 49.68 | 48.97 | 51.29 | 53.21 | a | 56.81 | 58.10 | 59.52 | 61.32 | 59.13 | 56.65 | 48.73 | 49.06 | 54.37 | ||||||||||||
1941 | 48.13 | 51.21 | 52.35 | 51.47 | 57.16 | 57.90 | 60.32 | 62.26 | 57.60 | 55.10 | 50.97 | 47.52 | 54.33 | |||||||||||||
1942 | 45.26 | h | ----- | z | 46.58 | 52.73 | 54.26 | 59.67 | 63.45 | 63.58 | 62.21 | a | 58.27 | a | ----- | z | 47.87 | 56.51 | c | |||||||
1943 | 46.57 | a | 49.82 | 50.50 | e | 53.00 | b | 55.39 | c | 56.70 | 60.71 | 62.58 | 59.93 | 56.55 | 50.10 | 49.03 | 54.24 | |||||||||
1944 | 45.32 | 44.72 | 48.97 | 50.63 | 55.74 | 56.47 | 59.26 | 59.85 | e | 60.79 | a | 56.69 | e | 49.80 | 47.10 | 52.95 | ||||||||||
1945 | 44.77 | 47.56 | a | 45.52 | 49.37 | 53.32 | 58.27 | 62.06 | 64.32 | 62.00 | j | 59.45 | 48.67 | 46.87 | a | 52.74 | a | |||||||||
1946 | 44.90 | 43.36 | 48.71 | 52.83 | a | 55.90 | a | 59.47 | 62.87 | 63.00 | 62.48 | a | 53.35 | 48.77 | 47.23 | 53.57 | ||||||||||
1947 | 41.94 | 49.18 | 51.65 | 53.77 | 57.87 | 60.33 | 60.52 | 62.87 | 62.70 | 56.68 | 47.07 | 45.61 | 54.18 | |||||||||||||
1948 | 45.77 | 44.86 | 46.32 | 52.62 | a | 53.67 | a | 58.40 | 60.10 | 60.32 | 59.37 | 57.29 | 48.43 | 44.42 | e | 52.63 | ||||||||||
1949 | 39.90 | 44.18 | 47.00 | 52.27 | 55.42 | 59.38 | a | 61.77 | 60.74 | 60.13 | 53.94 | 53.20 | 44.58 | 52.71 | ||||||||||||
1950 | 41.45 | 47.43 | 48.39 | 52.43 | 53.52 | 55.93 | 62.74 | 60.00 | 60.17 | a | 56.97 | 53.03 | a | 49.94 | 53.50 | |||||||||||
1951 | 45.94 | 46.68 | 48.42 | 52.30 | 53.77 | 58.23 | 62.35 | 61.03 | 60.17 | 56.77 | 50.37 | c | 44.74 | 53.40 | ||||||||||||
1952 | 44.45 | 48.07 | 46.74 | 51.77 | 55.29 | 56.00 | 59.06 | 61.32 | 60.07 | 56.38 | e | 49.27 | 46.29 | 52.89 | ||||||||||||
1953 | 49.39 | 46.43 | 47.26 | 49.73 | 51.90 | 55.53 | 62.65 | 59.21 | c | 57.50 | 53.68 | 50.30 | 44.68 | 52.35 | ||||||||||||
1954 | 44.23 | 48.57 | 47.00 | 51.80 | 54.03 | b | 58.41 | a | 65.16 | 62.87 | 58.77 | 53.61 | 52.20 | 45.81 | 53.54 | |||||||||||
1955 | 43.48 | 43.68 | 48.94 | 48.60 | 53.43 | h | 57.13 | 60.10 | 62.26 | 60.87 | 54.23 | 49.30 | 48.58 | 52.47 | a | |||||||||||
1956 | 46.42 | 42.48 | 48.10 | 50.21 | a | 54.88 | f | 58.57 | 61.58 | 62.06 | 60.40 | 55.39 | 51.03 | 45.52 | 52.89 | a | ||||||||||
1957 | 44.61 | 50.43 | 48.52 | 50.40 | 53.81 | 59.60 | 61.07 | a | 60.84 | 57.23 | 52.94 | 45.90 | 44.77 | 52.51 | ||||||||||||
1958 | 43.39 | 46.93 | 43.84 | 49.93 | b | 57.48 | 59.22 | c | 61.58 | 64.71 | 61.93 | a | 60.84 | 51.37 | 49.43 | a | 54.22 | |||||||||
1959 | 48.61 | 46.14 | 51.58 | 55.10 | 55.58 | 59.40 | 65.42 | 65.58 | 64.53 | 59.42 | 53.53 | 49.77 | 56.22 | |||||||||||||
1960 | 45.26 | 48.79 | 51.81 | 53.27 | 56.68 | 60.17 | 62.65 | 62.48 | 63.57 | 56.97 | 50.34 | a | 46.87 | 54.90 | ||||||||||||
1961 | 49.61 | 49.93 | 50.77 | 52.36 | b | 54.46 | e | 58.07 | 64.13 | 64.06 | 59.90 | 57.06 | 51.03 | 46.45 | 54.82 | |||||||||||
1962 | 46.90 | 50.37 | a | 46.71 | 53.07 | a | 54.55 | 56.97 | 60.00 | 62.13 | 61.37 | 57.68 | 53.45 | a | 49.58 | 54.40 | ||||||||||
1963 | 47.03 | 53.86 | 48.50 | a | 50.30 | 56.94 | 59.17 | 61.53 | a | 63.94 | 65.50 | 60.39 | 53.03 | 47.55 | 55.64 | |||||||||||
1964 | 46.81 | 47.69 | 49.00 | 51.59 | c | 53.10 | 56.77 | 61.10 | 64.58 | 60.57 | 60.48 | 50.40 | 49.48 | 54.30 | ||||||||||||
1965 | 48.39 | 48.25 | 51.39 | 52.80 | 55.55 | 57.50 | 59.58 | 64.76 | b | 60.20 | 60.58 | 54.63 | 48.07 | a | 55.14 | |||||||||||
1966 | 46.16 | 47.18 | 51.77 | a | 55.27 | 57.68 | 60.63 | 61.87 | 65.03 | 61.43 | 57.65 | 53.50 | 49.13 | 55.61 | ||||||||||||
1967 | 47.65 | 48.75 | 51.20 | a | 48.23 | 55.84 | 57.67 | 63.06 | 67.03 | 66.33 | 60.14 | c | 57.54 | b | 46.90 | a | 55.86 | |||||||||
1968 | 48.29 | 52.54 | a | 52.55 | 53.93 | ----- | z | ----- | z | ----- | z | ----- | z | 62.56 | l | 59.61 | 54.38 | a | 45.57 | a | 52.41 | e | ||||
1969 | 51.63 | a | 47.89 | 50.55 | k | 51.97 | a | 57.26 | 60.80 | 63.60 | a | 66.55 | 63.20 | ----- | z | 54.69 | a | ----- | z | 57.51 | c | |||||
1970 | ----- | z | ----- | z | 50.25 | s | 49.27 | 54.17 | a | 58.21 | b | 60.29 | 60.83 | a | 56.67 | 53.74 | 49.03 | 44.61 | 54.09 | c | ||||||
1971 | 43.26 | 45.36 | 48.39 | 50.69 | a | 52.89 | c | 58.97 | a | 63.37 | a | 67.10 | 63.50 | 53.35 | 48.44 | c | 42.97 | 53.19 | ||||||||
1972 | 43.73 | a | 47.10 | 51.65 | 52.52 | a | 55.57 | a | 61.63 | 63.03 | 65.53 | a | 62.04 | c | 55.32 | c | 47.93 | 43.83 | a | 54.16 | ||||||
1973 | 43.33 | a | 49.96 | b | 48.12 | e | 50.60 | t | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 47.14 | i |
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2000 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2001 | 46.42 | 45.88 | b | 53.07 | b | 51.76 | a | 58.94 | 61.70 | g | 62.60 | a | 63.46 | c | 61.88 | f | 58.94 | n | 55.67 | l | 46.69 | b | 53.60 | d | ||
2002 | 46.77 | 48.18 | 49.71 | 53.13 | 56.15 | e | 60.40 | 63.42 | 62.65 | 61.71 | f | 57.75 | o | 55.14 | w | 49.19 | 54.40 | c | ||||||||
2003 | 53.04 | d | 51.00 | i | 53.90 | k | 52.57 | i | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 53.04 | k |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 44.92 | 46.98 | 48.67 | 51.30 | 54.90 | 57.96 | 61.61 | 62.26 | 60.17 | 55.91 | 50.10 | 46.42 | 53.32 | |||||||||||||
S.D. | 3.45 | 3.02 | 2.88 | 2.59 | 2.18 | 2.01 | 2.07 | 2.91 | 2.58 | 2.83 | 3.11 | 2.28 | 1.94 | |||||||||||||
SKEW | -0.54 | -0.42 | -0.69 | -1.20 | -0.32 | -0.99 | 0.12 | -1.70 | -0.02 | -0.47 | -0.69 | -0.50 | -1.39 | |||||||||||||
MAX | 53.04 | 53.86 | 53.45 | 56.10 | 59.80 | 61.63 | 68.19 | 67.10 | 66.33 | 60.84 | 57.54 | 49.94 | 56.22 | |||||||||||||
MIN | 35.47 | 39.25 | 40.23 | 42.47 | 50.06 | 50.73 | 56.06 | 49.13 | 53.53 | 48.23 | 39.40 | 39.42 | 47.61 | |||||||||||||
YRS | 54 | 53 | 53 | 54 | 51 | 52 | 53 | 53 | 50 | 50 | 51 | 53 | 44 |