YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1902 | ----- | z | ----- | z | ----- | z | ----- | z | 52.91 | b | 64.83 | 68.03 | 65.92 | 63.00 | a | ----- | z | ----- | z | ----- | z | 62.94 | g | |||
1903 | ----- | z | ----- | z | 42.90 | 44.33 | 54.32 | 66.55 | 69.60 | ----- | z | ----- | z | 53.36 | q | 45.47 | a | ----- | z | 53.86 | f | |||||
1904 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1905 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 70.50 | l | 65.33 | c | 49.26 | f | 45.13 | 34.67 | h | 55.23 | j | |
1917 | 27.05 | k | 35.95 | 40.14 | f | 48.73 | 53.74 | 68.60 | 76.16 | 71.94 | 67.57 | 66.20 | u | 51.03 | n | 46.32 | 58.63 | d | ||||||||
1918 | 35.43 | a | 40.50 | 46.55 | 52.07 | 56.03 | 74.31 | a | 72.68 | 70.81 | 68.08 | 56.60 | 41.43 | 35.24 | 54.14 | |||||||||||
1919 | 33.63 | 33.73 | 42.32 | 54.24 | a | 61.66 | 68.74 | c | 72.87 | a | 73.35 | 67.91 | a | 50.42 | a | 42.68 | 38.32 | 53.32 | ||||||||
1920 | 40.10 | 42.33 | 41.98 | a | 46.02 | 58.56 | 66.78 | 74.45 | 71.54 | d | 63.67 | 52.73 | 44.00 | 34.98 | a | 53.09 | ||||||||||
1921 | 37.16 | 42.00 | 48.34 | 50.12 | b | 57.42 | a | 68.20 | 74.15 | 71.57 | a | 65.43 | 60.23 | a | 47.08 | 42.56 | 55.36 | |||||||||
1922 | 34.27 | 36.68 | 40.84 | 47.63 | 60.18 | a | 69.65 | 75.05 | 72.47 | 68.38 | 57.23 | 42.30 | 41.13 | 53.82 | ||||||||||||
1923 | 40.19 | 36.45 | 41.44 | 49.58 | 60.87 | 63.78 | 74.82 | 70.61 | 64.50 | 53.00 | 48.05 | a | 37.63 | 53.41 | ||||||||||||
1924 | 33.26 | 43.17 | 38.87 | 50.12 | 60.42 | 71.68 | 73.26 | 74.15 | 67.05 | 54.15 | 46.68 | 33.05 | 53.82 | |||||||||||||
1925 | 32.65 | 44.52 | 46.94 | 53.52 | 63.66 | 67.75 | 75.58 | 71.13 | 63.43 | g | 52.92 | 45.58 | 40.39 | 54.06 | a | |||||||||||
1926 | 38.31 | 41.75 | 46.69 | 51.42 | 56.42 | 73.47 | 75.13 | e | 73.19 | 67.02 | 56.88 | a | 48.47 | 39.26 | 55.67 | |||||||||||
1927 | 39.48 | 43.29 | 45.94 | 50.95 | 57.22 | o | 66.93 | 76.35 | 73.00 | 64.60 | 55.55 | 46.88 | 33.03 | a | 54.18 | a | ||||||||||
1928 | 41.16 | 39.50 | 45.53 | 50.33 | 61.24 | 69.90 | a | 73.87 | 72.74 | 67.18 | 57.34 | 43.55 | 36.77 | 54.93 | ||||||||||||
1929 | 35.08 | 36.07 | 44.31 | 49.63 | 58.98 | ----- | z | ----- | z | ----- | z | ----- | z | 56.71 | e | 44.82 | 42.14 | b | 45.97 | d | ||||||
1930 | 33.44 | 45.32 | 44.82 | 55.62 | 53.90 | 69.10 | 73.11 | 71.47 | 64.72 | 54.92 | 43.52 | 36.61 | 53.88 | |||||||||||||
1931 | 37.71 | 42.00 | 46.60 | 54.00 | 61.76 | d | 68.32 | 77.61 | 73.60 | 66.37 | 56.55 | a | 40.78 | 30.47 | 54.65 | |||||||||||
1932 | 30.48 | 39.07 | 45.68 | 51.37 | 58.94 | 66.77 | 75.03 | 73.71 | 68.72 | 56.61 | 48.25 | 29.32 | 53.66 | |||||||||||||
1933 | 29.06 | 30.48 | 46.50 | 48.33 | 54.31 | 68.12 | 76.95 | 73.66 | 68.68 | 59.60 | 47.62 | 41.50 | 53.73 | |||||||||||||
1934 | 39.66 | 43.45 | 52.34 | 55.67 | 63.17 | a | 65.47 | 76.24 | 73.48 | 66.47 | 59.40 | 46.13 | 41.05 | 56.88 | ||||||||||||
1935 | 37.71 | 42.86 | 43.05 | 51.45 | 54.94 | 69.15 | 72.95 | 73.27 | 66.33 | 55.53 | 43.27 | 38.90 | 54.12 | |||||||||||||
1936 | 37.26 | 39.34 | 45.45 | 53.63 | 60.95 | 71.25 | 74.37 | 72.36 | c | 62.84 | a | 55.98 | 45.53 | 37.82 | 54.73 | |||||||||||
1937 | 19.65 | 37.75 | 42.66 | 50.35 | 60.74 | 67.27 | 74.74 | 72.95 | 69.45 | 59.26 | 47.18 | 42.27 | 53.69 | |||||||||||||
1938 | 40.31 | 39.38 | 42.87 | 51.20 | 57.88 | a | 67.67 | 72.60 | 72.50 | 69.03 | 55.82 | 40.25 | 39.87 | 54.11 | ||||||||||||
1939 | 37.02 | 29.30 | 45.40 | 54.15 | 59.60 | 67.58 | 74.48 | 73.34 | 64.70 | 54.84 | 47.27 | 43.03 | 54.23 | |||||||||||||
1940 | 39.50 | 40.22 | 46.84 | 51.90 | 61.39 | 70.73 | 73.74 | 73.76 | 65.03 | 55.76 | 42.40 | 40.85 | a | 55.18 | ||||||||||||
1941 | 37.32 | 42.93 | 44.31 | 45.95 | 58.48 | 64.13 | 72.79 | 69.42 | 62.72 | 51.35 | a | 46.47 | 37.69 | 52.80 | ||||||||||||
1942 | 36.97 | 35.21 | 43.34 | 51.20 | 57.37 | 67.48 | 75.55 | 74.05 | 67.25 | 56.26 | 48.28 | 41.56 | 54.54 | |||||||||||||
1943 | 39.16 | 43.50 | 47.21 | 54.12 | 66.41 | t | 66.77 | 74.13 | 73.47 | a | 68.43 | 56.53 | 46.52 | 38.11 | 55.27 | a | ||||||||||
1944 | 38.52 | g | 37.33 | 41.95 | 47.65 | 57.48 | 63.72 | 72.60 | 74.58 | 68.72 | 57.71 | 42.70 | 40.40 | 54.99 | a | |||||||||||
1945 | 38.84 | 42.11 | 40.73 | 49.48 | 58.79 | 65.98 | 75.61 | 73.84 | 68.02 | 58.73 | 44.85 | 35.72 | a | 54.39 | ||||||||||||
1946 | 37.03 | 39.52 | 45.95 | 55.41 | a | 59.37 | 69.05 | 74.13 | 72.77 | 68.28 | 51.45 | b | 43.17 | 43.47 | 54.97 | |||||||||||
1947 | 36.67 | a | 44.52 | 47.15 | 52.55 | 63.65 | a | 68.05 | 75.77 | 71.10 | 70.41 | a | 57.21 | 40.69 | a | 35.61 | 55.28 | |||||||||
1948 | 40.52 | 37.47 | 39.15 | 52.42 | 60.00 | 66.18 | 73.23 | 72.53 | 67.83 | 56.71 | 43.05 | 36.56 | 53.80 | |||||||||||||
1949 | 25.90 | 31.84 | 42.92 | 54.02 | 57.87 | 67.53 | 74.73 | 71.89 | 68.78 | 53.60 | 51.40 | 34.77 | a | 52.94 | ||||||||||||
1950 | 35.74 | 44.54 | 46.18 | 54.77 | 58.19 | 67.00 | 73.23 | 71.92 | 63.92 | 61.19 | 49.62 | 44.13 | a | 55.87 | ||||||||||||
1951 | 37.35 | 40.05 | 43.21 | 51.45 | a | 59.73 | 65.35 | 75.66 | 70.39 | 67.62 | 55.39 | 43.58 | 34.81 | 53.72 | ||||||||||||
1952 | 35.39 | 38.24 | 37.71 | 51.27 | 60.90 | 65.70 | 72.55 | 73.74 | 68.13 | 60.21 | 41.32 | 36.95 | 53.51 | |||||||||||||
1953 | 42.39 | 39.46 | 45.11 | 50.30 | 53.65 | 67.47 | 74.61 | 70.76 | 66.78 | 55.31 | 46.83 | 36.16 | 54.07 | |||||||||||||
1954 | 37.42 | 45.21 | 42.45 | 55.50 | 61.63 | 67.12 | 73.90 | 69.85 | 67.52 | 58.84 | 49.50 | 38.77 | 55.64 | |||||||||||||
1955 | 31.53 | b | 35.84 | 44.63 | 49.03 | 58.30 | c | 66.97 | 70.74 | 72.79 | 66.97 | 59.37 | 46.17 | c | 41.77 | 53.68 | ||||||||||
1956 | 41.52 | 34.84 | 46.06 | 50.77 | 61.29 | 70.52 | 72.40 | 68.93 | a | 70.10 | 55.29 | 43.32 | 39.00 | 54.50 | ||||||||||||
1957 | 36.81 | 44.68 | 45.94 | 49.87 | 54.47 | 69.75 | 72.74 | 71.42 | a | 66.58 | 53.71 | 41.60 | 41.15 | 54.06 | ||||||||||||
1958 | 38.29 | 43.46 | d | 40.06 | 51.30 | 65.16 | 71.05 | 75.33 | a | 75.00 | 64.62 | 57.26 | 45.00 | 44.66 | 55.93 | |||||||||||
1959 | 38.93 | a | 36.39 | 46.97 | 56.40 | 60.32 | a | 70.38 | a | 73.89 | 70.18 | 64.62 | 53.79 | j | 46.08 | d | 39.68 | 54.89 | a | |||||||
1960 | 27.55 | a | 35.90 | 48.82 | 53.55 | 59.81 | 72.12 | 75.37 | 74.89 | 69.02 | 56.02 | 46.88 | ----- | z | 56.36 | a | ||||||||||
1961 | 42.50 | h | 43.70 | a | 45.61 | 53.34 | e | 58.90 | 72.57 | a | 76.45 | a | 72.27 | a | 63.34 | a | 53.60 | 42.29 | b | 34.08 | 56.01 | a | ||||
1962 | 34.77 | 39.96 | 38.40 | j | 56.52 | 56.95 | a | 67.18 | 72.61 | 74.15 | 67.48 | 56.85 | 47.33 | 41.69 | 55.96 | a | ||||||||||
1963 | 34.42 | a | 46.46 | b | 42.38 | a | 48.79 | a | 61.02 | 64.48 | 75.52 | 71.77 | 69.07 | a | 58.90 | 46.32 | 38.31 | 54.79 | ||||||||
1964 | 33.92 | 34.50 | c | 39.81 | d | 47.53 | a | 55.52 | 64.42 | 73.94 | 70.40 | 65.35 | 60.10 | 40.33 | 35.66 | 51.79 | ||||||||||
1965 | 38.77 | 37.27 | 39.95 | 47.12 | 54.15 | 60.76 | a | 71.13 | 70.05 | a | 61.97 | 59.31 | 48.67 | 39.28 | a | 52.37 | ||||||||||
1966 | 35.85 | 35.27 | 48.27 | 54.63 | 63.47 | a | 69.65 | 74.35 | 73.24 | 67.08 | 55.67 | a | 45.24 | c | 38.32 | 55.09 | ||||||||||
1967 | 37.74 | 41.32 | 47.36 | b | 46.45 | a | 57.00 | i | 64.56 | l | 74.79 | c | 71.62 | a | 67.32 | h | 58.02 | 48.79 | a | 31.23 | 50.81 | c | ||||
1968 | 34.44 | 44.41 | 45.06 | 49.77 | 59.08 | 68.55 | ----- | z | 67.82 | a | 65.12 | 57.08 | 45.24 | a | 34.42 | 51.91 | a | |||||||||
1969 | 40.42 | a | 37.14 | 38.76 | 49.50 | 59.58 | 66.48 | 73.50 | a | 74.65 | 66.66 | b | 52.98 | 45.50 | 41.61 | 53.90 | ||||||||||
1970 | 37.47 | 43.59 | 41.18 | 45.30 | 60.06 | 68.00 | 75.57 | b | 73.81 | 62.55 | 53.06 | 46.22 | 35.22 | b | 53.50 | |||||||||||
1971 | 36.85 | 38.29 | 43.25 | a | 47.65 | 54.78 | b | 67.24 | a | 75.66 | b | 70.91 | o | 65.20 | 51.26 | 42.40 | 29.02 | a | 50.14 | a | ||||||
1972 | 36.77 | 42.17 | 50.67 | a | 50.67 | 59.26 | 67.07 | 74.76 | d | 69.62 | o | 65.70 | 53.17 | a | 40.07 | a | 32.58 | e | 52.08 | a | ||||||
1973 | 32.53 | 38.76 | a | 38.16 | 47.40 | f | 59.31 | 67.71 | b | 74.13 | e | 71.84 | l | 65.65 | 56.76 | 45.33 | a | 38.78 | a | 51.71 | b | |||||
1974 | 33.73 | a | 37.46 | a | 46.29 | 51.62 | b | 61.57 | b | 71.36 | e | ----- | z | ----- | z | ----- | z | ----- | z | 45.77 | j | 33.67 | m | 50.34 | f | |
1975 | 35.27 | i | 38.69 | l | 43.42 | l | 43.08 | l | 56.77 | k | ----- | z | ----- | z | ----- | z | 67.45 | k | ----- | 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 | 53.07 | 59.98 | 70.62 | b | 70.73 | a | 71.31 | 61.38 | b | 54.09 | t | 44.69 | q | ----- | z | 64.52 | f | |||
1987 | ----- | z | 25.62 | l | 30.17 | j | 45.53 | l | 58.66 | 68.38 | 70.26 | 69.20 | c | 64.66 | e | ----- | z | ----- | z | ----- | z | 66.23 | g | |||
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2002 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 36.10 | 39.63 | 44.24 | 51.11 | 58.86 | 67.99 | 74.00 | 72.15 | 66.37 | 56.13 | 45.09 | 38.10 | 54.23 | |||||||||||||
S.D. | 4.08 | 3.94 | 3.15 | 2.93 | 2.86 | 2.53 | 1.83 | 1.83 | 2.16 | 2.56 | 2.67 | 3.88 | 1.01 | |||||||||||||
SKEW | -1.58 | -0.43 | -0.06 | -0.16 | -0.27 | 0.05 | -0.86 | -0.94 | -0.34 | -0.20 | -0.06 | -0.33 | 0.20 | |||||||||||||
MAX | 42.39 | 46.46 | 52.34 | 56.52 | 65.16 | 74.31 | 77.61 | 75.00 | 70.41 | 61.19 | 51.40 | 46.32 | 56.88 | |||||||||||||
MIN | 19.65 | 29.30 | 37.71 | 44.33 | 52.91 | 60.76 | 68.03 | 65.92 | 61.38 | 50.42 | 40.07 | 29.02 | 51.79 | |||||||||||||
YRS | 55 | 58 | 57 | 59 | 59 | 60 | 59 | 56 | 58 | 55 | 58 | 56 | 42 |