YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | 65.70 | k | 79.03 | 80.28 | m | 96.75 | f | 100.00 | b | 96.81 | 94.90 | 77.42 | 76.63 | 58.74 | 83.36 | e | ||||||
1950 | 55.81 | 65.75 | 69.80 | a | 80.10 | 82.77 | 90.77 | 97.52 | 99.16 | 88.13 | 84.94 | 74.27 | 68.90 | 79.83 | ||||||||||||
1951 | 60.00 | 61.71 | 67.63 | a | 72.62 | d | 83.03 | 92.33 | 99.29 | 97.35 | 95.90 | 78.06 | 65.80 | 56.13 | 77.49 | |||||||||||
1952 | 53.16 | 61.62 | 56.00 | y | ----- | z | 87.77 | 89.48 | a | 99.10 | a | 100.84 | 90.75 | f | 87.97 | 61.60 | 57.23 | a | 77.64 | c | ||||||
1953 | 66.42 | 62.46 | 69.96 | e | 74.34 | a | 77.13 | 91.10 | 102.42 | 98.97 | 95.69 | a | 80.70 | a | 70.43 | 61.73 | a | 79.28 | ||||||||
1954 | 61.13 | a | 70.11 | 64.48 | 81.41 | a | 89.26 | 91.87 | 100.71 | 96.13 | 94.17 | 86.23 | 70.45 | a | 58.13 | 80.34 | ||||||||||
1955 | 52.03 | 58.25 | 68.42 | 73.43 | 80.90 | 92.03 | 96.68 | 98.23 | 92.67 | 83.81 | 68.57 | b | 62.29 | 77.28 | ||||||||||||
1956 | 62.48 | 58.79 | 71.84 | 73.43 | b | 83.00 | 94.60 | 96.77 | 96.45 | 95.57 | 77.39 | 69.28 | a | 62.94 | 78.54 | |||||||||||
1957 | 54.00 | 68.04 | 67.06 | 73.63 | 78.35 | 95.20 | 101.62 | o | 96.61 | 92.23 | 77.61 | 64.53 | 63.55 | 75.53 | a | |||||||||||
1958 | ----- | z | 66.17 | d | 60.50 | a | 72.83 | 89.03 | 93.50 | 98.90 | 101.16 | 87.60 | ----- | z | ----- | z | ----- | z | 83.71 | d | ||||||
1959 | ----- | z | 60.23 | b | 73.50 | c | 82.40 | 81.90 | 97.90 | 104.52 | 99.06 | 89.70 | 85.06 | 70.93 | 59.68 | 82.26 | a | |||||||||
1960 | 54.58 | 60.86 | 74.03 | 78.77 | 85.65 | 99.80 | 102.97 | 101.19 | 95.37 | 82.10 | 68.23 | 60.71 | 80.35 | |||||||||||||
1961 | 63.90 | 66.29 | 69.23 | 80.27 | 82.68 | 99.97 | 104.90 | 97.87 | 89.93 | 79.00 | 65.57 | 57.77 | 79.78 | |||||||||||||
1962 | 59.90 | 60.25 | 61.84 | 82.38 | a | 79.19 | 92.83 | 97.87 | 99.58 | 93.57 | 80.90 | 71.30 | 63.35 | 78.58 | ||||||||||||
1963 | 58.19 | 70.21 | 65.07 | c | 69.14 | a | 84.65 | 86.53 | 99.58 | 95.74 | 90.93 | 80.00 | 66.70 | 61.29 | 77.34 | |||||||||||
1964 | 58.06 | 62.69 | ----- | z | ----- | z | 81.00 | 90.20 | 100.17 | a | 97.55 | ----- | z | ----- | z | ----- | z | 60.06 | 78.53 | e | ||||||
1965 | 61.84 | 63.79 | 65.29 | 71.33 | 78.87 | ----- | z | 97.35 | 96.16 | 85.45 | a | 84.03 | 64.53 | 53.81 | 74.77 | a | ||||||||||
1966 | ----- | z | 57.43 | 70.61 | 78.90 | a | ----- | z | 93.13 | 97.73 | a | ----- | z | 89.80 | 78.32 | 67.33 | 59.70 | h | 79.16 | d | ||||||
1967 | 61.45 | 66.68 | 70.74 | 64.40 | 82.45 | 88.33 | 100.28 | b | 100.28 | b | 88.69 | a | 86.18 | c | 71.21 | b | 54.13 | a | 77.90 | |||||||
1968 | ----- | z | 68.89 | b | 68.70 | a | 73.03 | 80.13 | h | 92.04 | c | 96.00 | a | 93.23 | a | 91.71 | b | 80.23 | a | 69.11 | b | 56.10 | 78.90 | b | ||
1969 | 61.13 | a | 59.29 | 66.10 | a | 75.57 | b | 84.67 | d | 89.17 | 97.90 | 102.48 | j | 94.23 | 74.48 | b | 66.73 | 63.28 | b | 75.69 | a | |||||
1970 | 60.13 | ----- | z | 66.63 | a | 69.53 | 85.37 | a | 93.37 | 102.48 | j | 95.78 | m | 89.10 | 76.94 | 69.27 | 55.32 | 73.96 | c | |||||||
1971 | 60.97 | a | 65.18 | 69.39 | 73.57 | 77.61 | 90.83 | 99.65 | 98.90 | 91.62 | a | 75.48 | 66.13 | 52.53 | a | 76.82 | ||||||||||
1972 | 59.52 | 68.21 | a | 78.13 | 75.38 | a | 84.03 | 92.83 | a | 100.32 | 94.33 | a | 86.86 | a | 73.43 | a | 62.25 | b | 55.24 | b | 77.55 | |||||
1973 | 52.97 | 59.61 | 63.23 | a | 72.52 | a | ----- | z | 95.63 | 101.23 | 96.65 | 90.03 | ----- | z | ----- | z | ----- | z | 78.98 | d | ||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 58.88 | 63.59 | 68.28 | 75.13 | 82.82 | 92.76 | 99.65 | 97.83 | 91.47 | 80.47 | 68.22 | 59.22 | 78.54 | |||||||||||||
S.D. | 3.95 | 3.99 | 4.14 | 4.62 | 3.49 | 3.35 | 2.39 | 2.14 | 3.09 | 4.10 | 3.62 | 4.03 | 1.25 | |||||||||||||
SKEW | -0.23 | 0.17 | 0.26 | -0.15 | 0.17 | 0.56 | 0.63 | -0.18 | -0.13 | 0.17 | 0.27 | 0.33 | 0.21 | |||||||||||||
MAX | 66.42 | 70.21 | 78.13 | 82.40 | 89.26 | 99.97 | 104.90 | 101.19 | 95.90 | 87.97 | 76.63 | 68.90 | 80.35 | |||||||||||||
MIN | 52.03 | 57.43 | 60.50 | 64.40 | 77.13 | 86.53 | 96.00 | 93.23 | 85.45 | 73.43 | 61.60 | 52.53 | 76.82 | |||||||||||||
YRS | 20 | 23 | 22 | 23 | 21 | 23 | 23 | 22 | 23 | 22 | 22 | 22 | 13 |