YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | 85.00 | i | 96.00 | 90.00 | 85.00 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||
1940 | ----- | z | ----- | z | ----- | z | ----- | z | 86.00 | a | 88.00 | 92.00 | a | 87.00 | 84.00 | 81.00 | a | 71.00 | 72.00 | ----- | z | |||||
1941 | 66.00 | 71.00 | a | 72.00 | 71.00 | 84.00 | 85.00 | 85.00 | 84.00 | 83.00 | 79.00 | 71.00 | 74.00 | 85.00 | a | |||||||||||
1942 | 65.00 | 64.00 | 70.00 | 75.00 | 86.00 | b | 92.00 | 89.00 | 85.00 | 81.00 | 77.00 | 77.00 | 68.00 | 92.00 | b | |||||||||||
1943 | 67.00 | 70.00 | k | 77.00 | 85.00 | 86.00 | 88.00 | 88.00 | 90.00 | 89.00 | 78.00 | 72.00 | 65.00 | 90.00 | k | |||||||||||
1944 | 67.00 | 64.00 | 66.00 | 72.00 | 82.00 | 93.00 | 90.00 | a | 91.00 | 85.00 | 80.00 | 71.00 | 68.00 | 93.00 | a | |||||||||||
1945 | 68.00 | 70.00 | 75.00 | 78.00 | 89.00 | 93.00 | 90.00 | 90.00 | 90.00 | a | 80.00 | 76.00 | 68.00 | 93.00 | a | |||||||||||
1946 | 66.00 | 71.00 | 80.00 | 79.00 | 83.00 | 94.00 | 93.00 | 90.00 | 83.00 | 79.00 | 74.00 | 74.00 | 94.00 | |||||||||||||
1947 | 66.00 | 69.00 | 73.00 | c | 78.00 | 87.00 | 95.00 | 93.00 | 91.00 | 89.00 | 81.00 | d | 71.00 | 64.00 | 95.00 | g | ||||||||||
1948 | 71.00 | 70.00 | b | 69.00 | 84.00 | a | 91.00 | a | 92.00 | 92.00 | 94.00 | 92.00 | 80.00 | 71.00 | 70.00 | 94.00 | d | |||||||||
1949 | 55.00 | a | 65.00 | c | 73.00 | i | 82.00 | 84.00 | 92.00 | 88.00 | 88.00 | 82.00 | 76.00 | 78.00 | 67.00 | 92.00 | m | |||||||||
1950 | 77.00 | 68.00 | 75.00 | 82.00 | 86.00 | 90.00 | 88.00 | a | 87.00 | e | 83.00 | 80.00 | 77.00 | 74.00 | 90.00 | f | ||||||||||
1951 | 68.00 | 74.00 | 71.00 | 78.00 | 93.00 | 98.00 | 97.00 | 92.00 | 92.00 | 84.00 | 70.00 | 66.00 | 98.00 | |||||||||||||
1952 | 69.00 | 66.00 | 67.00 | 77.00 | 86.00 | 92.00 | 88.00 | 94.00 | 89.00 | 82.00 | 75.00 | 69.00 | a | 94.00 | a | |||||||||||
1953 | 77.00 | 72.00 | 75.00 | 79.00 | 90.00 | 94.00 | 94.00 | 90.00 | 91.00 | 82.00 | 74.00 | 63.00 | 94.00 | |||||||||||||
1954 | 70.00 | 69.00 | 75.00 | 84.00 | 86.00 | 95.00 | 94.00 | 90.00 | 89.00 | 82.00 | h | 75.00 | b | 71.00 | 95.00 | j | ||||||||||
1955 | 66.00 | 68.00 | a | 71.00 | d | 77.00 | 84.00 | 94.00 | 92.00 | 86.00 | 89.00 | 80.00 | 74.00 | 71.00 | 94.00 | e | ||||||||||
1956 | 74.00 | 71.00 | 76.00 | d | 78.00 | e | 91.00 | g | 92.00 | c | 93.00 | a | 88.00 | d | 94.00 | f | 83.00 | g | 78.00 | d | 71.00 | h | ----- | z | ||
1957 | 68.00 | c | 76.00 | a | 72.00 | 75.00 | 81.00 | a | 96.00 | a | 95.00 | c | 87.00 | d | 85.00 | b | 80.00 | o | 63.00 | e | 67.00 | g | ----- | z | ||
1958 | 62.00 | 67.00 | a | 66.00 | a | 78.00 | a | 89.00 | 94.00 | a | 97.00 | 90.00 | 90.00 | b | 83.00 | 70.00 | m | 71.00 | a | 97.00 | t | |||||
1959 | 68.00 | 68.00 | 70.00 | 83.00 | a | 87.00 | b | 92.00 | 87.00 | 91.00 | 89.00 | a | 84.00 | 70.00 | c | 69.00 | a | 92.00 | h | |||||||
1960 | 64.00 | 65.00 | a | 73.00 | 82.00 | 87.00 | 95.00 | 93.00 | 91.00 | 85.00 | 78.00 | 70.00 | 66.00 | 95.00 | a | |||||||||||
1961 | 65.00 | 72.00 | 72.00 | 81.00 | a | 88.00 | 92.00 | a | 91.00 | 90.00 | a | 85.00 | 79.00 | 70.00 | b | 64.00 | 92.00 | e | ||||||||
1962 | 64.00 | a | 73.00 | 75.00 | a | 82.00 | 83.00 | 89.00 | 87.00 | 90.00 | 85.00 | 80.00 | 72.00 | 68.00 | 90.00 | b | ||||||||||
1963 | 63.00 | a | 70.00 | 76.00 | a | 79.00 | a | 84.00 | 90.00 | 91.00 | a | 85.00 | 82.00 | 82.00 | 74.00 | 62.00 | 91.00 | d | ||||||||
1964 | 65.00 | 63.00 | a | 73.00 | 78.00 | 87.00 | 91.00 | 93.00 | 92.00 | 87.00 | 81.00 | 74.00 | 72.00 | 93.00 | a | |||||||||||
1965 | 68.00 | 65.00 | 70.00 | a | 88.00 | 85.00 | a | 88.00 | 92.00 | 85.00 | 84.00 | 83.00 | 70.00 | 69.00 | d | 92.00 | f | |||||||||
1966 | 63.00 | 65.00 | 74.00 | 76.00 | a | 89.00 | 87.00 | 89.00 | a | 90.00 | 81.00 | 77.00 | 75.00 | 68.00 | 90.00 | b | ||||||||||
1967 | 71.00 | 68.00 | 80.00 | 80.00 | 87.00 | 93.00 | 91.00 | 88.00 | a | 80.00 | a | 80.00 | 76.00 | 63.00 | 93.00 | b | ||||||||||
1968 | 69.00 | 67.00 | 73.00 | 74.00 | 86.00 | 92.00 | 86.00 | a | 84.00 | 86.00 | 83.00 | a | 70.00 | 68.00 | 92.00 | b | ||||||||||
1969 | 71.00 | 67.00 | 76.00 | a | 84.00 | a | 90.00 | 95.00 | 92.00 | 90.00 | 81.00 | 80.00 | 69.00 | a | 69.00 | b | 95.00 | e | ||||||||
1970 | 72.00 | 72.00 | a | 65.00 | 76.00 | 85.00 | 93.00 | 86.00 | a | 85.00 | 85.00 | 73.00 | 72.00 | 70.00 | 93.00 | b | ||||||||||
1971 | 69.00 | 65.00 | 80.00 | 83.00 | 84.00 | 88.00 | 90.00 | 82.00 | 85.00 | 75.00 | 75.00 | 69.00 | 90.00 | |||||||||||||
1972 | 65.00 | a | 72.00 | 75.00 | 82.00 | 83.00 | b | 91.00 | 94.00 | 87.00 | 80.00 | 83.00 | 67.00 | 69.00 | 94.00 | c | ||||||||||
1973 | 65.00 | 66.00 | 68.00 | 76.00 | 84.00 | 95.00 | ----- | z | 88.00 | 85.00 | 83.00 | 79.00 | 70.00 | ----- | z | |||||||||||
1974 | 72.00 | a | 71.00 | 75.00 | 82.00 | 90.00 | 94.00 | 87.00 | 86.00 | a | 87.00 | 75.00 | a | 69.00 | 64.00 | 94.00 | c | |||||||||
1975 | 71.00 | 65.00 | 73.00 | 78.00 | 79.00 | 90.00 | d | 82.00 | 84.00 | 81.00 | 82.00 | 77.00 | 74.00 | 90.00 | d | |||||||||||
1976 | 66.00 | a | 73.00 | 72.00 | 76.00 | 86.00 | 91.00 | 85.00 | 85.00 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 67.58 | 68.63 | 72.86 | 79.22 | 86.03 | 92.08 | 90.38 | 88.30 | 85.54 | 80.00 | 72.77 | 68.50 | 92.48 | |||||||||||||
S.D. | 4.21 | 3.31 | 3.82 | 3.79 | 2.93 | 2.84 | 3.43 | 2.97 | 3.53 | 2.74 | 3.50 | 3.32 | 2.60 | |||||||||||||
SKEW | -0.10 | 0.18 | -0.14 | 0.02 | 0.08 | -0.39 | -0.21 | -0.11 | 0.18 | -0.67 | -0.36 | -0.13 | -0.80 | |||||||||||||
MAX | 77.00 | 76.00 | 80.00 | 88.00 | 93.00 | 98.00 | 97.00 | 94.00 | 92.00 | 84.00 | 79.00 | 74.00 | 98.00 | |||||||||||||
MIN | 55.00 | 63.00 | 65.00 | 71.00 | 79.00 | 85.00 | 82.00 | 82.00 | 80.00 | 73.00 | 63.00 | 62.00 | 85.00 | |||||||||||||
YRS | 36 | 35 | 35 | 36 | 36 | 38 | 37 | 37 | 35 | 33 | 35 | 34 | 21 |