YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | ----- | 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 | ----- | 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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | 50.38 | 45.75 | a | ----- | z | ----- | z | 67.93 | 73.29 | 77.97 | 74.50 | 69.21 | 55.03 | 56.81 | 63.43 | c | ||||||||
1959 | 51.92 | 45.11 | 56.35 | 60.50 | 58.16 | 70.95 | 79.41 | b | 74.45 | 68.65 | 66.39 | 57.68 | 51.13 | 61.73 | ||||||||||||
1960 | 43.06 | 45.43 | 54.29 | 57.73 | 61.05 | 72.50 | 79.34 | 75.55 | 75.33 | 62.82 | 52.80 | 49.42 | a | 60.78 | ||||||||||||
1961 | 52.66 | 50.93 | 50.21 | 57.48 | 57.42 | 72.28 | 77.35 | 76.61 | 68.08 | 63.11 | 52.47 | a | 47.02 | 60.47 | ||||||||||||
1962 | 47.84 | 46.38 | 45.12 | a | 60.73 | 57.41 | b | 66.93 | 73.47 | 77.45 | 73.23 | 64.90 | 57.62 | 52.82 | 60.33 | |||||||||||
1963 | 45.70 | a | 55.25 | 48.68 | 50.13 | 59.73 | 63.15 | 75.03 | 75.40 | 74.91 | a | 64.53 | 54.15 | 52.06 | 59.89 | |||||||||||
1964 | 47.00 | 48.02 | 48.03 | 52.67 | 57.74 | 66.08 | 77.11 | 75.55 | 69.76 | a | 68.56 | 49.97 | a | 47.29 | 58.98 | |||||||||||
1965 | 48.48 | 50.11 | 48.11 | 52.98 | 58.52 | 59.77 | b | 74.13 | 76.34 | 65.40 | 68.65 | 54.63 | 48.09 | b | 58.77 | |||||||||||
1966 | 46.35 | 45.39 | 53.90 | 58.78 | 61.77 | a | 66.88 | j | 74.95 | 77.10 | 71.47 | 64.16 | 55.83 | 49.48 | 59.93 | a | ||||||||||
1967 | 49.18 | 52.11 | 55.46 | q | 48.18 | k | 59.81 | 61.48 | 76.77 | 79.39 | 69.83 | 67.89 | 59.08 | 43.45 | 61.90 | b | ||||||||||
1968 | 47.13 | 52.76 | 56.00 | y | 52.75 | j | 58.08 | 67.57 | 74.26 | 71.89 | 71.35 | 63.32 | 54.07 | 45.28 | a | 60.57 | b | |||||||||
1969 | 49.50 | 42.94 | d | 48.65 | a | 54.85 | 61.81 | 62.32 | 74.63 | 81.18 | 72.64 | a | 60.85 | 56.45 | 49.58 | 59.62 | ||||||||||
1970 | 47.24 | 51.33 | b | 51.45 | 51.97 | 61.39 | 68.91 | a | 79.66 | 79.13 | 70.07 | 60.09 | b | 56.05 | 46.23 | 60.29 | ||||||||||
1971 | 49.56 | 50.52 | a | 53.12 | a | 52.12 | 56.71 | j | 70.83 | l | 73.67 | e | 76.68 | i | 70.10 | 59.05 | 53.67 | 43.29 | 56.12 | c | ||||||
1972 | 50.74 | 52.29 | 59.65 | 57.48 | a | 61.11 | 69.45 | 75.82 | 72.80 | c | 66.79 | a | 56.32 | 49.68 | 47.60 | 59.98 | ||||||||||
1973 | 43.15 | 48.05 | 44.72 | a | 53.66 | a | 62.12 | a | 70.00 | 74.95 | b | 75.38 | c | 64.20 | h | 64.42 | e | 51.40 | a | 51.05 | 58.08 | a | ||||
1974 | 45.19 | 49.28 | a | 49.89 | 55.25 | 59.58 | a | 71.18 | 75.31 | d | 74.40 | 74.98 | 61.89 | 55.64 | b | 46.98 | 59.97 | |||||||||
1975 | 50.10 | 46.73 | 47.60 | a | 44.63 | g | 59.16 | 66.00 | 75.08 | 73.68 | 73.08 | 60.83 | b | ----- | z | ----- | z | 61.36 | c | |||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 47.93 | 49.05 | 50.34 | 55.45 | 59.68 | 67.28 | 75.79 | 76.13 | 71.19 | 63.72 | 54.48 | 48.68 | 60.07 | |||||||||||||
S.D. | 2.75 | 3.25 | 4.19 | 3.36 | 1.68 | 3.93 | 2.05 | 2.42 | 2.98 | 3.57 | 2.64 | 3.46 | 0.82 | |||||||||||||
SKEW | -0.15 | -0.08 | 0.63 | 0.14 | 0.06 | -0.46 | 0.76 | 0.27 | -0.25 | -0.16 | -0.24 | 0.48 | 0.26 | |||||||||||||
MAX | 52.66 | 55.25 | 59.65 | 60.73 | 62.12 | 72.50 | 79.66 | 81.18 | 75.33 | 69.21 | 59.08 | 56.81 | 61.73 | |||||||||||||
MIN | 43.06 | 42.94 | 44.72 | 50.13 | 57.41 | 59.77 | 73.29 | 71.89 | 65.40 | 56.32 | 49.68 | 43.29 | 58.77 | |||||||||||||
YRS | 17 | 18 | 16 | 14 | 16 | 16 | 18 | 17 | 17 | 18 | 17 | 17 | 11 |