YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1908 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 85.29 | 85.37 | 64.19 | 50.77 | 32.03 | 63.53 | g | |||||
1909 | 36.77 | 41.46 | b | 47.53 | a | 59.13 | 71.79 | c | 81.33 | 89.73 | a | 91.93 | b | 80.03 | a | 68.90 | 56.57 | 27.67 | a | 62.74 | ||||||
1910 | 36.71 | 49.65 | b | 72.74 | 74.97 | 72.17 | b | 86.83 | a | 93.61 | 87.87 | 83.60 | 76.32 | 62.15 | c | 48.87 | 70.46 | |||||||||
1911 | 48.83 | a | 47.35 | b | 65.16 | 65.67 | f | 75.50 | a | 91.14 | a | 88.71 | 87.15 | e | 81.07 | 64.39 | c | 51.60 | 40.67 | a | 67.42 | a | ||||
1912 | 33.17 | b | 40.38 | 34.75 | c | 63.50 | 70.88 | e | 77.14 | a | 86.34 | b | 84.61 | 68.55 | a | 63.40 | a | 55.42 | f | 44.58 | 60.66 | a | ||||
1913 | 41.94 | 32.22 | a | 45.50 | a | 64.40 | 73.35 | 84.23 | 90.58 | 92.68 | 77.37 | ----- | z | ----- | z | 36.84 | 63.91 | b | ||||||||
1914 | 48.77 | 41.59 | a | 53.58 | 61.26 | c | 70.13 | 80.87 | 85.32 | 86.71 | 82.64 | b | 70.33 | a | 62.90 | a | 32.61 | 64.73 | ||||||||
1915 | 40.97 | b | 52.00 | ----- | z | 75.97 | a | 71.48 | 77.45 | a | 84.61 | 82.40 | a | 78.77 | 74.29 | 65.93 | a | 30.81 | 66.79 | a | ||||||
1916 | 34.68 | c | 46.07 | 65.35 | 66.90 | 82.52 | b | 83.38 | a | 93.03 | a | 89.19 | 82.53 | 69.32 | 43.56 | c | 29.07 | a | 65.47 | |||||||
1917 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 82.17 | 92.90 | 84.23 | a | 78.83 | 64.61 | 61.53 | 41.58 | 72.27 | e | ||||||
1918 | 31.61 | 48.29 | 63.23 | 53.57 | 76.06 | 90.73 | 88.61 | 86.81 | 74.50 | 68.58 | 51.63 | 38.55 | 64.35 | |||||||||||||
1919 | 42.32 | 35.43 | 53.35 | 60.00 | 72.58 | 84.07 | 93.27 | a | 85.70 | a | 80.69 | d | 58.90 | 41.63 | 32.39 | 61.69 | ||||||||||
1920 | 43.26 | 44.59 | 55.42 | 50.00 | 69.84 | 80.93 | 88.45 | 83.16 | 81.20 | 72.03 | 48.47 | 41.16 | 63.21 | |||||||||||||
1921 | 41.97 | 47.32 | 53.61 | 62.20 | e | 72.26 | 84.53 | 91.71 | 91.57 | c | 81.57 | 75.10 | 55.07 | a | 40.93 | a | 66.49 | |||||||||
1922 | 36.87 | a | 39.79 | 54.97 | 60.20 | 73.77 | 88.20 | 89.71 | 94.06 | 87.00 | 76.89 | l | 50.07 | 44.19 | 65.35 | a | ||||||||||
1923 | 47.48 | 41.15 | a | 50.42 | 62.73 | ----- | z | ----- | z | 89.54 | c | 85.73 | e | 83.71 | i | 57.37 | d | 58.64 | e | 38.10 | b | 59.02 | c | |||
1924 | 35.92 | f | 45.19 | b | 37.15 | d | 63.96 | d | 66.14 | c | 82.96 | d | 89.22 | d | 90.73 | t | 74.25 | j | 68.27 | a | 56.48 | c | 28.89 | d | 59.81 | c |
1925 | 34.15 | k | 53.48 | e | 59.33 | g | 68.38 | f | 74.55 | b | 82.58 | d | 91.03 | b | 87.09 | i | 82.95 | i | 53.61 | 51.85 | d | 43.25 | g | 67.85 | f | |
1926 | 40.12 | o | 50.89 | s | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 81.93 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 81.93 | k |
1928 | ----- | z | 46.79 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 76.77 | d | 67.37 | a | 48.61 | b | 38.46 | g | 59.88 | h | |
1929 | 36.32 | c | 32.21 | d | 51.83 | b | 61.07 | b | 68.50 | c | 82.36 | b | 91.77 | ----- | z | 70.59 | a | 72.85 | r | 37.20 | 40.27 | a | 57.21 | b | ||
1930 | 21.45 | b | 49.18 | 47.74 | 68.31 | a | 67.26 | 82.27 | 91.68 | 86.58 | 80.38 | a | 63.69 | b | 51.43 | 43.06 | 62.75 | |||||||||
1931 | 47.83 | a | 51.96 | 46.94 | 67.25 | j | 72.15 | d | 91.07 | c | 93.35 | 91.03 | 87.93 | a | 70.52 | 50.83 | a | 42.77 | 67.85 | a | ||||||
1932 | 35.23 | 49.36 | d | 44.61 | c | 66.23 | 75.45 | 83.27 | 94.10 | a | 89.83 | a | 81.77 | 62.65 | 54.63 | 30.86 | c | 64.00 | ||||||||
1933 | 45.16 | 41.15 | a | 54.77 | a | 64.31 | d | 65.79 | b | 90.18 | m | 92.42 | l | 87.04 | f | 83.17 | 72.74 | 58.27 | 48.83 | h | 60.67 | d | ||||
1934 | 49.23 | a | 49.00 | 57.85 | d | 66.54 | b | 83.96 | c | 89.76 | i | 96.81 | 90.40 | f | 76.03 | 75.74 | h | 61.54 | d | 43.81 | 64.97 | c | ||||
1935 | 50.60 | a | 49.69 | l | 65.00 | s | ----- | z | 63.50 | k | 80.21 | a | 96.65 | e | 92.61 | 83.73 | d | 69.10 | 50.40 | e | 46.10 | 71.17 | d | |||
1936 | 38.03 | a | 31.00 | 57.89 | d | 61.03 | 74.19 | 87.00 | 97.94 | 91.81 | 82.72 | a | 68.45 | 55.27 | d | 40.92 | e | 65.52 | ||||||||
1937 | 24.38 | b | 42.39 | 48.32 | 64.87 | 75.81 | 81.32 | b | 97.10 | 97.00 | a | 85.24 | a | 67.94 | 50.28 | a | 39.48 | b | 64.51 | |||||||
1938 | 41.62 | b | 49.93 | a | 60.10 | 66.54 | b | 73.52 | 87.40 | 92.27 | a | 97.23 | 82.60 | 75.29 | 47.55 | a | 43.28 | b | 68.11 | |||||||
1939 | 42.68 | 35.92 | c | 57.07 | a | 63.13 | 81.61 | 85.87 | 98.65 | 93.47 | a | 89.93 | a | 71.58 | 58.27 | 51.55 | 69.14 | |||||||||
1940 | 30.72 | f | 46.00 | c | 56.25 | c | 62.89 | b | 78.68 | 89.47 | 97.20 | a | 91.06 | 84.10 | a | 76.23 | 51.38 | a | 45.55 | b | 70.80 | a | ||||
1941 | 45.97 | b | 47.00 | b | 49.45 | b | 63.29 | b | 78.53 | a | 83.33 | 91.37 | a | 90.45 | 81.36 | b | 65.00 | 58.76 | a | 44.63 | a | 66.59 | ||||
1942 | 37.52 | b | 32.25 | 48.71 | 66.53 | 66.84 | 74.90 | 89.77 | 87.23 | 74.57 | 64.26 | 50.97 | 43.00 | a | 61.38 | |||||||||||
1943 | 44.07 | a | 53.46 | 51.19 | 68.53 | 67.53 | a | 82.07 | 93.90 | 94.03 | 82.20 | 69.77 | 52.67 | 42.17 | a | 66.80 | ||||||||||
1944 | 41.90 | 41.45 | 43.35 | 56.80 | 76.94 | 83.79 | a | 88.52 | 91.13 | 83.70 | 73.84 | 52.59 | a | 38.74 | 64.40 | |||||||||||
1945 | 40.87 | 44.61 | 63.00 | 58.30 | 71.87 | p | 74.48 | a | 87.77 | 87.42 | 77.13 | 70.77 | 56.73 | 39.32 | 63.67 | a | ||||||||||
1946 | 47.32 | ----- | z | ----- | z | ----- | z | ----- | z | 86.20 | 95.87 | a | 90.53 | a | 82.50 | 67.77 | 45.30 | 50.73 | a | 70.78 | d | |||||
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 78.60 | t | 73.72 | b | 44.89 | b | 44.14 | b | 54.25 | i |
1948 | 40.38 | b | 41.41 | b | 47.86 | c | 71.37 | 76.30 | a | 81.60 | 91.45 | 91.32 | 87.48 | a | 70.13 | 46.90 | 39.97 | 65.51 | ||||||||
1949 | 24.04 | d | 40.82 | 49.45 | 64.33 | 73.61 | 80.70 | 91.03 | 89.61 | 77.83 | 63.90 | b | 62.57 | 46.00 | a | 63.66 | ||||||||||
1950 | 40.26 | 54.00 | 51.55 | 63.07 | 70.94 | 88.13 | 87.94 | 86.23 | 74.97 | 78.48 | b | 53.30 | 48.18 | c | 66.42 | |||||||||||
1951 | 43.61 | 49.86 | 52.23 | 61.59 | a | 74.97 | 75.17 | 90.06 | 87.21 | b | 77.29 | i | 64.00 | k | 52.83 | 37.74 | 62.53 | b | ||||||||
1952 | 45.48 | 47.17 | 45.10 | 66.10 | 73.45 | 93.23 | 95.00 | 92.55 | 86.43 | 72.26 | 48.77 | 35.29 | 66.74 | |||||||||||||
1953 | 48.55 | 45.07 | 60.39 | 59.53 | 71.16 | 89.87 | 93.38 | j | 90.77 | 87.93 | 75.61 | 54.77 | 43.06 | 66.07 | a | |||||||||||
1954 | 46.39 | 62.46 | 49.42 | 73.47 | 71.00 | a | 89.80 | 100.39 | 94.48 | 85.90 | 67.10 | 59.43 | 49.13 | 70.75 | ||||||||||||
1955 | 37.06 | 38.68 | 54.39 | 71.60 | 78.58 | 80.33 | 96.39 | 94.97 | 83.67 | 73.68 | 46.03 | 42.65 | 66.50 | |||||||||||||
1956 | 44.00 | a | 42.62 | 59.10 | 64.17 | 78.80 | a | 92.87 | 91.23 | 88.57 | a | 87.90 | 77.87 | a | 49.17 | a | 48.29 | 68.71 | ||||||||
1957 | 34.26 | 54.96 | 51.94 | 58.13 | 68.94 | 84.53 | 92.29 | 91.45 | 80.03 | 62.81 | 49.37 | 53.03 | 65.15 | |||||||||||||
1958 | 47.39 | 46.00 | 40.23 | 58.90 | 79.71 | 84.13 | 86.32 | 94.32 | 83.20 | ----- | z | ----- | z | ----- | z | 68.91 | c | |||||||||
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | 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 |
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2004 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | 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 |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 40.64 | 44.83 | 52.52 | 63.74 | 73.59 | 84.00 | 91.89 | 89.81 | 81.49 | 68.89 | 52.82 | 40.95 | 65.61 | |||||||||||||
S.D. | 6.91 | 6.72 | 7.68 | 5.32 | 4.43 | 4.63 | 3.70 | 3.68 | 4.63 | 5.54 | 6.04 | 6.25 | 2.46 | |||||||||||||
SKEW | -0.96 | -0.07 | 0.15 | 0.12 | 0.32 | 0.03 | 0.24 | -0.02 | -0.65 | -0.50 | -0.04 | -0.36 | 0.36 | |||||||||||||
MAX | 50.60 | 62.46 | 72.74 | 75.97 | 83.96 | 93.23 | 100.39 | 97.23 | 89.93 | 78.48 | 65.93 | 53.03 | 70.75 | |||||||||||||
MIN | 21.45 | 31.00 | 34.75 | 50.00 | 65.79 | 74.48 | 84.61 | 82.40 | 68.55 | 53.61 | 37.20 | 27.67 | 61.38 | |||||||||||||
YRS | 42 | 44 | 41 | 40 | 41 | 44 | 44 | 42 | 44 | 43 | 46 | 45 | 26 |