YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | 53.37 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 38.71 | j | 53.37 | k | |
1916 | 27.19 | 35.28 | 38.39 | 44.97 | 48.29 | 59.60 | 61.94 | 70.97 | a | 62.47 | 58.03 | 36.03 | 31.00 | 47.85 | ||||||||||||
1917 | 31.83 | a | 32.96 | a | 34.32 | 36.90 | 47.03 | 56.62 | a | 74.06 | 75.00 | a | 63.24 | a | 56.48 | b | 46.73 | 34.97 | 49.18 | |||||||
1918 | 34.30 | a | 32.18 | 45.93 | a | 57.37 | 56.65 | ----- | z | 66.60 | a | 64.57 | c | 68.45 | a | 54.90 | 43.71 | b | 37.19 | 51.08 | a | |||||
1919 | 38.16 | 38.46 | 44.63 | a | 52.27 | 57.63 | a | 64.33 | x | 74.59 | b | 74.30 | a | ----- | z | 53.17 | a | 42.00 | p | ----- | z | 54.15 | d | |||
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 65.38 | a | 73.32 | c | 74.77 | a | 62.76 | a | 52.21 | b | 39.67 | 32.74 | 57.26 | e | ||
1921 | 32.74 | 34.96 | a | 39.13 | a | 42.83 | 56.63 | a | 68.11 | b | 70.27 | a | 71.84 | 64.90 | a | 59.90 | a | 40.60 | 31.93 | a | 51.15 | |||||
1922 | 29.19 | 31.50 | 35.03 | 41.00 | 52.84 | 73.57 | 74.00 | 71.61 | 65.93 | a | 50.29 | 36.37 | c | 33.00 | 49.53 | |||||||||||
1923 | 36.86 | b | 35.32 | c | 38.95 | j | 45.62 | i | 43.14 | b | 58.85 | c | 70.86 | c | 72.87 | 58.57 | 49.90 | 45.62 | a | 41.61 | 51.36 | b | ||||
1924 | 34.48 | 42.66 | 40.90 | 47.03 | a | 63.00 | a | 65.93 | b | 68.93 | a | 69.03 | b | 63.77 | d | 50.21 | b | 36.00 | b | 30.93 | d | 51.07 | ||||
1925 | 35.97 | 37.04 | a | 40.23 | 48.52 | a | 61.39 | c | 65.86 | a | 74.52 | 67.87 | 62.03 | 56.06 | 38.47 | 34.74 | 51.89 | |||||||||
1926 | 33.37 | l | 40.14 | 49.97 | 57.63 | 54.87 | 65.67 | 70.90 | 67.52 | 57.03 | 52.97 | 49.03 | 37.23 | 54.81 | a | |||||||||||
1927 | 33.77 | 42.07 | 45.35 | 50.03 | 48.87 | 61.50 | 67.55 | 66.65 | 56.97 | 51.19 | 44.77 | 37.87 | 50.55 | |||||||||||||
1928 | 36.13 | a | 42.66 | 46.35 | 49.10 | 62.68 | 57.43 | 67.94 | 67.23 | 63.30 | 51.68 | 40.33 | ----- | z | 53.17 | a | ||||||||||
1929 | ----- | z | ----- | z | ----- | z | 43.59 | a | 55.26 | 60.10 | 68.48 | 70.39 | 64.60 | 57.55 | 43.73 | 38.19 | o | 57.96 | d | |||||||
1930 | ----- | z | ----- | z | ----- | z | 53.03 | 53.42 | 60.80 | 67.94 | 70.68 | 61.17 | 48.97 | 38.47 | 30.06 | 53.84 | c | |||||||||
1931 | 33.58 | 37.32 | 42.16 | 50.57 | 61.42 | 62.17 | 70.48 | 70.00 | 58.60 | 52.94 | 36.97 | 29.10 | 50.44 | |||||||||||||
1932 | 30.58 | 31.90 | 37.13 | 45.43 | 52.32 | 63.10 | 62.94 | 65.42 | 64.63 | 52.32 | 40.43 | 30.16 | 48.03 | |||||||||||||
1933 | 32.00 | 30.21 | 36.06 | 45.17 | 51.23 | 58.93 | 67.23 | 70.71 | 55.77 | 55.77 | 44.10 | 35.87 | 48.59 | |||||||||||||
1934 | 38.10 | 43.39 | 50.48 | 59.30 | 61.67 | p | 66.04 | e | 69.81 | j | 72.27 | e | 57.73 | h | 58.42 | l | 40.63 | 33.21 | b | 50.43 | d | |||||
1935 | 31.86 | b | 40.86 | 38.32 | 52.13 | 59.35 | 63.17 | a | 66.61 | ----- | z | 68.41 | a | 51.63 | a | 37.47 | 30.47 | a | 49.12 | a | ||||||
1936 | 33.39 | 22.69 | 39.37 | a | 51.27 | 58.77 | 61.92 | e | 71.26 | 71.87 | 61.50 | f | 63.21 | c | ----- | z | 35.29 | 50.90 | b | |||||||
1937 | 24.07 | b | 31.46 | 44.68 | 42.97 | 59.52 | 63.37 | 73.41 | b | 66.80 | a | 65.20 | 57.10 | 39.26 | c | 33.61 | 50.12 | |||||||||
1938 | 32.25 | c | 34.11 | 39.66 | b | 50.03 | 58.03 | a | 65.93 | 77.55 | 71.06 | 73.87 | 55.50 | a | 37.74 | c | 34.72 | b | 52.54 | |||||||
1939 | 35.03 | a | 32.64 | 43.16 | 51.83 | 57.23 | a | 57.37 | c | 68.68 | 72.87 | 65.46 | b | 52.71 | c | 45.34 | a | 37.00 | a | 51.61 | ||||||
1940 | 33.33 | d | 36.24 | 46.10 | 50.10 | a | 61.84 | 67.32 | b | 68.41 | b | 69.77 | 66.24 | a | 53.27 | a | 34.28 | a | 34.27 | a | 51.76 | |||||
1941 | 33.35 | 40.75 | 51.90 | 55.03 | 55.29 | 62.03 | 75.10 | 69.32 | 55.23 | 51.26 | 41.93 | 32.74 | 52.00 | |||||||||||||
1942 | 27.77 | 35.89 | 41.19 | 51.33 | 53.81 | 58.87 | 73.23 | 75.06 | 70.93 | 57.68 | 34.30 | 32.42 | 51.04 | |||||||||||||
1943 | 25.48 | 38.23 | b | 39.57 | a | 52.03 | 52.81 | 62.60 | 75.92 | g | 67.93 | b | 73.21 | b | 55.50 | c | 42.17 | 34.20 | a | 49.43 | a | |||||
1944 | 33.61 | 38.31 | 42.26 | 51.17 | 58.26 | 63.87 | 71.19 | 67.00 | a | 68.97 | 62.55 | 39.07 | 30.52 | 52.23 | ||||||||||||
1945 | 33.94 | 37.37 | a | 41.35 | ----- | z | 61.13 | 63.30 | c | 72.94 | n | ----- | z | 58.62 | n | 56.42 | l | 36.83 | l | ----- | z | 47.42 | g | |||
1946 | 35.78 | h | 38.50 | d | 42.85 | d | 51.62 | i | 62.38 | e | 63.58 | d | 71.85 | d | 69.93 | q | 64.24 | e | 48.65 | e | 38.62 | f | 35.42 | g | 56.01 | e |
1947 | ----- | z | 45.37 | i | 47.56 | d | 53.26 | g | 59.44 | m | 59.16 | e | 67.32 | f | 65.62 | j | 64.36 | e | 48.76 | f | 39.21 | f | 33.34 | b | 51.11 | h |
1948 | 32.69 | e | 33.91 | g | 39.91 | i | 43.83 | f | 53.62 | j | 66.96 | e | 66.09 | h | 63.35 | h | 60.32 | e | 52.22 | h | 36.79 | f | 28.04 | g | 53.32 | i |
1949 | 23.29 | j | 31.72 | j | 43.60 | k | 51.17 | l | 58.67 | g | 60.35 | d | 68.78 | h | 67.83 | g | 63.35 | j | 49.87 | h | 46.59 | h | 33.95 | i | 60.35 | k |
1950 | 20.65 | n | 31.10 | g | 37.37 | l | 45.94 | l | 54.32 | i | 60.70 | j | 71.52 | h | 72.95 | l | 67.00 | i | 47.25 | g | 41.35 | g | 36.90 | j | ----- | z |
1951 | 31.15 | d | 39.00 | j | 38.11 | l | 54.28 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 31.15 | k |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 64.64 | i | 38.70 | 32.19 | 35.45 | j | ||
1953 | 38.48 | 38.11 | 41.80 | a | 47.50 | b | 53.68 | 55.03 | 70.30 | h | 70.95 | j | 66.00 | m | 56.52 | f | 41.66 | a | 35.29 | 43.94 | d | |||||
1954 | 30.06 | 36.21 | 43.06 | 45.80 | o | 58.79 | l | 55.77 | 65.60 | a | 62.03 | a | 62.07 | a | 52.23 | 45.32 | k | 33.67 | d | 48.97 | c | |||||
1955 | 34.65 | h | 37.23 | b | 37.72 | b | 44.89 | b | 52.10 | 61.80 | 63.77 | a | 69.71 | 62.23 | 51.37 | a | 33.77 | 30.94 | 49.59 | a | ||||||
1956 | 30.84 | 30.24 | 39.39 | 54.57 | b | 64.42 | 58.40 | 73.97 | 70.13 | 65.47 | 48.03 | 38.27 | 37.03 | 50.90 | ||||||||||||
1957 | 25.00 | a | 36.00 | 42.03 | 50.40 | 59.90 | 64.48 | a | 66.39 | 64.64 | i | 72.17 | 51.65 | 42.80 | 37.93 | b | 49.89 | a | ||||||||
1958 | 34.55 | 42.11 | a | 45.09 | h | 48.53 | 67.71 | 67.83 | a | 76.45 | 75.32 | 62.63 | 56.63 | a | 38.37 | 36.57 | a | 55.15 | a | |||||||
1959 | 32.16 | 34.68 | 40.87 | 49.30 | 54.10 | 62.30 | 72.67 | a | 67.00 | 58.53 | 53.16 | 41.71 | b | 34.23 | a | 50.06 | ||||||||||
1960 | 30.48 | 35.48 | 43.03 | 50.00 | 53.13 | 65.40 | 77.23 | 64.52 | 66.60 | 55.23 | 38.83 | 33.03 | 51.08 | |||||||||||||
1961 | 36.29 | 37.15 | a | 42.90 | 45.80 | 56.61 | 72.27 | 74.39 | 77.16 | 60.17 | 51.61 | 35.63 | 32.42 | 51.87 | ||||||||||||
1962 | 35.90 | 39.54 | 41.61 | 52.67 | 48.90 | b | 63.50 | 68.00 | a | 65.77 | 66.23 | 53.03 | 41.00 | 37.52 | 51.14 | |||||||||||
1963 | 31.45 | 46.21 | 43.81 | 46.77 | 58.84 | 60.00 | 64.19 | 69.48 | 72.79 | a | 53.87 | 39.07 | 34.97 | 51.79 | ||||||||||||
1964 | 34.48 | 39.79 | 40.23 | a | 45.60 | 53.97 | 59.10 | 67.52 | 65.03 | 60.47 | 56.00 | a | 36.63 | 29.55 | 49.03 | |||||||||||
1965 | 35.33 | a | 38.64 | 45.84 | 52.10 | 53.77 | 64.60 | 73.97 | a | 68.90 | a | 62.23 | 58.03 | 41.57 | 32.23 | 52.27 | ||||||||||
1966 | 32.65 | 37.29 | 42.61 | 49.31 | a | 59.23 | 60.80 | 65.61 | 69.16 | 66.73 | 53.66 | b | 41.07 | 35.77 | 51.16 | |||||||||||
1967 | 34.19 | 39.86 | 38.57 | a | 45.93 | 57.40 | a | 69.03 | 71.23 | 79.84 | 72.13 | 51.65 | 41.71 | b | 36.90 | 53.20 | ||||||||||
1968 | 33.10 | 44.00 | a | 44.58 | 47.10 | 57.65 | 62.63 | 72.81 | 65.94 | 63.69 | a | ----- | z | 38.61 | b | 29.17 | a | 50.84 | a | |||||||
1969 | 23.74 | 36.14 | 46.52 | 46.54 | d | 61.00 | b | 68.23 | 67.94 | 65.23 | 61.50 | 51.19 | 42.07 | a | 32.74 | 50.24 | ||||||||||
1970 | 30.32 | c | 41.07 | 43.00 | 42.73 | 56.50 | c | 68.59 | a | 71.07 | b | 72.00 | a | 60.38 | a | 51.58 | 37.61 | b | 31.23 | 50.51 | ||||||
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.16 | e | 31.34 | b | 34.25 | j |
1972 | 30.04 | d | 33.95 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 30.04 | k |
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 | ----- | 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 | 32.43 | 37.06 | 42.26 | 49.02 | 56.39 | 62.98 | 70.28 | 69.83 | 64.06 | 53.83 | 39.99 | 33.72 | 50.79 | |||||||||||||
S.D. | 3.52 | 4.35 | 3.86 | 4.53 | 4.90 | 4.07 | 3.88 | 3.73 | 4.62 | 3.39 | 3.40 | 2.77 | 1.34 | |||||||||||||
SKEW | -0.70 | -0.60 | 0.31 | -0.11 | -0.29 | 0.32 | -0.14 | 0.37 | 0.31 | 0.79 | 0.41 | 0.41 | -0.56 | |||||||||||||
MAX | 38.48 | 46.21 | 51.90 | 59.30 | 67.71 | 73.57 | 77.55 | 79.84 | 73.87 | 63.21 | 49.03 | 41.61 | 53.20 | |||||||||||||
MIN | 23.74 | 22.69 | 34.32 | 36.90 | 43.14 | 55.03 | 61.94 | 62.03 | 55.23 | 48.03 | 33.77 | 29.10 | 47.85 | |||||||||||||
YRS | 46 | 46 | 45 | 45 | 46 | 50 | 45 | 44 | 46 | 45 | 46 | 47 | 29 |