YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | ----- | z | ----- | z |
1921 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 83.14 | a | 89.32 | 84.65 | 80.90 | 75.06 | 66.37 | 47.16 | 75.23 | e | ||||||
1928 | 56.45 | 53.10 | 65.26 | 68.90 | 77.97 | 92.27 | 94.29 | 88.18 | c | 85.30 | 73.16 | 58.23 | 51.48 | 72.05 | ||||||||||||
1929 | 50.13 | 48.43 | 60.55 | 66.17 | 77.87 | a | 88.00 | b | 87.52 | 86.45 | 80.13 | 74.03 | a | 61.60 | 63.96 | g | 70.99 | a | ||||||||
1930 | 44.45 | i | 62.26 | a | ----- | z | 70.30 | 64.93 | p | ----- | z | 92.61 | 91.42 | 87.93 | 77.46 | e | 59.60 | 53.85 | e | 74.43 | d | |||||
1931 | 55.06 | 53.18 | ----- | z | 71.33 | 82.30 | a | 94.03 | 93.35 | h | 89.26 | 87.93 | b | ----- | z | 59.77 | 48.33 | g | 74.11 | d | ||||||
1932 | ----- | z | ----- | z | 65.73 | p | 70.10 | 76.50 | e | ----- | z | ----- | z | ----- | z | 83.19 | i | 71.42 | 70.13 | 49.19 | 67.47 | g | ||||
1933 | 50.90 | 50.46 | 65.55 | 68.97 | 71.58 | ----- | z | ----- | z | 88.26 | ----- | z | 78.84 | 68.93 | 71.89 | l | 67.94 | d | ||||||||
1934 | ----- | z | 69.14 | 73.23 | 76.30 | 85.52 | 86.93 | c | 93.65 | 89.10 | 85.93 | 84.90 | ----- | z | ----- | z | 82.74 | c | ||||||||
1935 | 54.32 | 56.67 | a | 58.58 | 70.45 | a | 70.12 | g | 88.93 | 92.13 | 91.53 | n | ----- | z | ----- | z | 60.53 | 53.97 | 66.95 | d | ||||||
1936 | 56.23 | 54.34 | 63.87 | 73.17 | a | ----- | z | ----- | z | ----- | z | 88.00 | p | 82.37 | ----- | z | ----- | z | 53.25 | k | 66.00 | g | ||||
1937 | 42.97 | 54.32 | 59.42 | 71.59 | a | ----- | z | 85.80 | 94.77 | i | ----- | z | 89.47 | 80.60 | a | 69.93 | 56.90 | 67.89 | c | |||||||
1938 | 57.10 | 57.15 | h | 60.64 | c | 70.50 | ----- | z | 89.43 | 94.00 | l | 92.48 | 86.87 | ----- | z | 65.80 | 58.52 | 72.67 | d | |||||||
1939 | 50.90 | 46.86 | 64.74 | 74.57 | 82.32 | 91.73 | 102.90 | 92.71 | 84.13 | 75.90 | 69.97 | a | 67.10 | a | 75.32 | |||||||||||
1940 | 60.74 | 64.55 | 72.29 | 77.30 | ----- | z | 98.07 | ----- | z | ----- | z | 79.52 | a | ----- | z | 61.30 | 55.58 | 71.17 | d | |||||||
1941 | 51.60 | k | 56.29 | 58.42 | 60.40 | 75.87 | 83.27 | 87.93 | a | 86.71 | 80.67 | 67.74 | 62.73 | 53.71 | 70.34 | a | ||||||||||
1942 | 54.80 | a | 51.86 | 60.42 | 67.70 | 78.45 | 89.50 | 93.53 | a | 87.58 | 84.70 | 72.39 | 65.30 | 58.75 | c | 72.08 | ||||||||||
1943 | 52.81 | 60.68 | 62.45 | 74.53 | 81.42 | 86.90 | ----- | z | 86.94 | 85.00 | 72.77 | 65.27 | 51.52 | 70.93 | a | |||||||||||
1944 | 51.65 | 52.59 | 58.32 | 65.00 | 76.48 | 85.43 | 89.74 | 91.61 | 83.73 | 74.10 | 56.40 | 55.52 | 70.05 | |||||||||||||
1945 | 51.90 | 56.32 | 55.32 | 67.83 | 78.42 | 87.50 | 90.84 | ----- | z | 86.33 | 74.84 | 64.82 | b | 51.77 | 69.63 | a | ||||||||||
1946 | 48.77 | 57.46 | 64.06 | 75.20 | 79.19 | 93.50 | 91.10 | 87.68 | 84.40 | 67.38 | w | 56.73 | 57.39 | 72.32 | a | |||||||||||
1947 | 48.68 | 62.46 | 63.61 | 69.67 | 81.00 | 86.93 | 93.61 | 85.87 | 87.53 | 75.52 | 55.80 | 51.03 | 71.81 | |||||||||||||
1948 | 57.06 | 52.25 | a | 55.57 | a | 73.77 | 82.61 | 90.53 | 93.68 | 91.81 | 86.70 | 74.35 | 59.10 | 53.16 | 72.55 | |||||||||||
1949 | 39.94 | 52.71 | 62.45 | 72.00 | 79.23 | 86.00 | d | 87.97 | a | 90.16 | 87.33 | 71.68 | 71.27 | 52.03 | 71.06 | |||||||||||
1950 | 51.90 | 61.93 | 65.40 | a | 74.97 | 80.06 | 90.47 | 88.33 | a | 91.77 | 82.10 | 82.74 | 68.97 | 62.43 | a | 75.09 | ||||||||||
1951 | 53.06 | 56.36 | 61.16 | 68.55 | a | 78.19 | 88.87 | 95.35 | 87.41 | b | 87.10 | 73.52 | 59.10 | 49.81 | 71.54 | |||||||||||
1952 | 51.65 | 54.48 | 52.84 | 69.57 | 79.94 | 86.93 | 90.61 | 90.81 | 87.17 | 83.29 | 57.73 | 50.90 | 71.33 | |||||||||||||
1953 | 59.97 | 58.04 | 62.65 | 69.07 | 72.97 | 90.53 | 89.77 | 89.23 | 90.00 | 76.00 | 65.83 | a | 52.37 | a | 73.03 | |||||||||||
1954 | 55.80 | a | 65.14 | 59.87 | 75.73 | 80.52 | 87.07 | a | 89.33 | a | 83.71 | 85.00 | 78.29 | 68.37 | 54.50 | i | 75.35 | a | ||||||||
1955 | 49.33 | g | 54.04 | d | 64.12 | f | 69.93 | 76.22 | d | 82.90 | a | 83.96 | d | ----- | z | ----- | z | ----- | z | ----- | z | 56.40 | k | 73.41 | g | |
1956 | 59.48 | f | 50.38 | h | 67.81 | d | 68.60 | j | 81.27 | e | 92.92 | f | 89.70 | a | 87.48 | 89.63 | 74.73 | a | 61.37 | 55.20 | a | 75.90 | d | |||
1957 | 51.00 | 62.43 | 61.58 | 67.80 | 72.29 | 88.53 | 91.13 | 85.45 | 85.13 | 67.90 | 55.43 | 57.67 | a | 70.53 | ||||||||||||
1958 | 53.13 | 58.93 | 53.23 | 67.53 | 83.50 | a | 89.17 | 91.39 | 90.19 | 81.23 | 73.52 | 59.93 | 61.10 | 71.90 | ||||||||||||
1959 | 56.50 | a | 54.50 | 64.35 | 75.03 | 81.40 | a | 90.60 | 91.55 | 82.58 | 81.63 | 71.24 | f | 60.63 | 53.00 | 71.98 | a | |||||||||
1960 | 45.48 | 50.03 | 66.00 | b | 72.40 | 78.03 | 90.03 | 92.55 | 89.96 | d | 86.30 | 70.03 | 63.07 | 50.45 | 71.20 | |||||||||||
1961 | 55.35 | 58.36 | 61.41 | b | 71.63 | 79.35 | 91.63 | 93.03 | 86.77 | 79.70 | 72.90 | b | 58.63 | 49.29 | 71.51 | |||||||||||
1962 | 49.68 | 54.43 | 57.55 | i | 73.87 | 76.10 | 86.29 | b | 87.84 | 90.55 | 81.57 | 72.74 | 63.57 | 54.26 | 71.90 | a | ||||||||||
1963 | 48.45 | 58.86 | 59.37 | a | 67.27 | 79.94 | 83.14 | b | 90.03 | a | 82.71 | 82.73 | 73.65 | 60.53 | 57.45 | 70.34 | ||||||||||
1964 | 50.61 | 52.17 | 57.84 | 65.33 | 78.52 | 86.40 | 88.52 | 85.87 | 82.34 | a | 79.32 | 59.70 | 52.58 | 69.93 | ||||||||||||
1965 | 55.68 | 56.50 | 57.90 | 67.77 | 76.19 | 83.70 | 91.71 | 91.62 | r | 81.50 | 81.23 | ----- | z | ----- | z | 72.46 | c | |||||||||
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 | 66.40 | 47.23 | 56.81 | j | ||
1968 | 51.58 | 60.34 | 61.10 | 65.80 | 78.16 | 90.90 | a | 90.74 | 85.44 | d | 86.00 | f | 76.58 | e | 61.62 | d | 51.41 | i | 72.23 | b | ||||||
1969 | 54.45 | i | 55.71 | 59.78 | d | 72.56 | e | 77.54 | g | 87.93 | o | 93.53 | n | 91.21 | l | 86.77 | h | 72.42 | e | 61.42 | f | 57.39 | c | 63.57 | g | |
1970 | 48.50 | s | 61.19 | a | 59.28 | b | 65.90 | 82.30 | a | 88.35 | m | 91.96 | g | 89.50 | o | 82.77 | h | ----- | z | 63.53 | 54.68 | 64.48 | f | |||
1971 | 55.74 | 58.33 | a | 66.35 | 70.53 | 76.13 | 89.78 | c | 97.28 | f | 88.82 | c | 84.47 | 66.73 | a | 60.70 | 46.65 | 69.48 | a | |||||||
1972 | 54.19 | 61.07 | 73.16 | 73.80 | 82.19 | 87.30 | 96.68 | 91.77 | 85.60 | 69.52 | 57.50 | 53.90 | 73.89 | |||||||||||||
1973 | ----- | z | 52.61 | 53.74 | 66.10 | 81.33 | p | 91.25 | b | 93.33 | d | ----- | z | ----- | z | ----- | z | ----- | z | 56.04 | f | 71.41 | g | |||
1974 | 49.61 | 55.82 | 64.19 | ----- | z | ----- | z | ----- | z | ----- | z | 89.85 | e | 84.97 | a | 62.62 | r | 61.33 | 49.58 | 65.05 | e | |||||
1975 | 52.19 | 53.07 | 57.32 | 61.50 | 76.84 | ----- | z | 92.44 | f | ----- | z | 84.57 | 76.03 | 63.10 | ----- | z | 65.58 | d | ||||||||
1976 | ----- | z | ----- | z | ----- | z | 66.60 | 76.61 | 87.97 | 89.16 | 89.23 | 80.57 | ----- | z | ----- | z | ----- | z | 81.69 | f | ||||||
1977 | 55.00 | t | 61.15 | a | 58.12 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 79.35 | 66.17 | 58.55 | 66.30 | h | |||
1978 | 52.35 | 53.00 | 64.35 | 71.63 | 78.87 | 91.33 | 92.03 | a | 85.87 | ----- | z | ----- | z | ----- | z | ----- | z | 73.68 | d | |||||||
1979 | 45.23 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 45.23 | k | |
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 |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 52.30 | 56.54 | 61.80 | 70.14 | 78.78 | 88.57 | 91.32 | 88.28 | 84.50 | 75.01 | 62.62 | 54.03 | 71.96 | |||||||||||||
S.D. | 4.29 | 4.69 | 4.79 | 3.80 | 3.03 | 3.25 | 3.22 | 2.72 | 2.88 | 4.29 | 4.29 | 4.38 | 1.55 | |||||||||||||
SKEW | -0.64 | 0.39 | 0.44 | -0.30 | -0.26 | 0.35 | 1.04 | -0.27 | -0.00 | 0.33 | 0.32 | 0.68 | 0.87 | |||||||||||||
MAX | 60.74 | 69.14 | 73.23 | 77.30 | 85.52 | 98.07 | 102.90 | 92.71 | 90.00 | 84.90 | 71.27 | 67.10 | 75.32 | |||||||||||||
MIN | 39.94 | 46.86 | 52.84 | 60.40 | 71.58 | 82.90 | 83.96 | 82.58 | 79.52 | 66.73 | 55.43 | 46.65 | 69.93 | |||||||||||||
YRS | 39 | 45 | 42 | 46 | 39 | 40 | 36 | 37 | 40 | 37 | 43 | 38 | 18 |