YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1904 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 78.52 | 75.19 | 70.90 | 58.71 | 55.63 | 48.65 | 64.60 | f | ||||||
1905 | 42.87 | 42.18 | ----- | z | 53.77 | 64.71 | 76.38 | a | 75.97 | 78.32 | 72.00 | 65.10 | 46.03 | 40.52 | 59.80 | a | ||||||||||
1906 | 47.58 | 46.93 | 43.95 | l | 56.50 | 67.27 | a | 71.17 | 79.64 | f | 71.68 | 66.20 | 56.34 | b | 44.14 | a | 49.13 | 57.69 | b | |||||||
1907 | 45.39 | 56.68 | 58.94 | 60.86 | h | 60.35 | 74.17 | 79.68 | 74.90 | 73.57 | 63.06 | 50.59 | a | 47.42 | 62.25 | a | ||||||||||
1908 | 47.35 | 52.09 | f | 58.58 | 60.23 | 65.68 | 77.80 | 76.90 | a | 76.29 | 74.60 | 60.45 | 50.43 | 47.61 | 63.27 | a | ||||||||||
1909 | 50.23 | 44.11 | 49.10 | 56.67 | 62.23 | 76.37 | 80.71 | 75.00 | 71.96 | e | 63.03 | 54.63 | 37.03 | 60.09 | ||||||||||||
1910 | 44.81 | d | 42.93 | 60.84 | 61.90 | 68.10 | 81.80 | 80.55 | 76.45 | 76.63 | 67.39 | 68.13 | 47.77 | 64.78 | ||||||||||||
1911 | 50.82 | i | 44.82 | 54.84 | 62.27 | 69.74 | 78.43 | 74.61 | 81.65 | 77.40 | 60.52 | 49.30 | 39.94 | 63.05 | a | |||||||||||
1912 | 44.55 | 36.41 | 43.39 | 59.90 | 71.32 | 73.50 | 78.90 | 80.61 | 72.70 | 73.13 | 54.53 | 44.71 | 61.14 | |||||||||||||
1913 | 43.65 | 44.39 | 47.03 | 63.30 | 73.35 | 73.27 | 82.74 | 82.26 | 72.30 | 62.03 | 60.07 | 39.97 | a | 62.03 | ||||||||||||
1914 | 48.68 | c | 46.75 | 55.65 | 63.03 | 67.90 | 80.27 | 77.29 | 79.54 | c | 78.17 | 65.03 | 63.94 | l | 39.48 | d | 63.80 | a | ||||||||
1915 | 42.77 | 46.04 | 43.26 | 58.83 | 64.29 | 75.57 | 78.52 | 75.35 | 72.50 | 68.29 | n | 57.30 | 51.35 | h | 61.44 | b | ||||||||||
1916 | 44.20 | a | 52.20 | d | 59.61 | 62.17 | f | 71.23 | a | 84.53 | 78.32 | i | 75.65 | 74.90 | 63.12 | f | 49.72 | l | 43.13 | 63.18 | d | |||||
1917 | 43.19 | 45.43 | 49.74 | 58.29 | b | 58.81 | 77.90 | 81.77 | a | 78.92 | e | 73.17 | 65.00 | 56.90 | 54.81 | 61.99 | ||||||||||
1918 | 40.87 | a | 49.79 | i | ----- | z | 57.46 | q | 70.43 | c | 79.97 | 77.90 | a | 77.03 | a | 69.24 | a | 61.21 | b | 45.53 | k | 35.26 | l | 68.09 | e | |
1919 | 45.13 | 40.41 | a | 46.87 | a | 57.70 | j | ----- | z | ----- | z | ----- | z | 79.81 | ----- | z | 64.52 | 47.13 | 44.29 | 52.59 | e | |||||
1920 | 40.71 | 42.34 | ----- | z | ----- | z | ----- | z | ----- | z | 82.90 | 81.74 | ----- | z | ----- | z | ----- | z | ----- | z | 61.92 | h | ||||
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 60.57 | 71.68 | 77.13 | 82.77 | 74.97 | 73.93 | 65.87 | 58.93 | 48.87 | 68.30 | c | |||||||||
1967 | 49.03 | 48.96 | 59.58 | 62.17 | 68.32 | 75.13 | 78.77 | 73.84 | 70.60 | 67.87 | 56.83 | 40.97 | a | 62.67 | ||||||||||||
1968 | 46.29 | 48.69 | 50.45 | 56.52 | a | 66.33 | a | 79.77 | 78.00 | 75.06 | 72.77 | 67.97 | 49.13 | 47.03 | 61.50 | |||||||||||
1969 | 51.68 | 47.21 | 45.97 | 60.77 | 69.19 | 72.23 | 79.55 | 79.32 | 72.13 | 57.42 | 52.37 | 44.55 | 61.03 | |||||||||||||
1970 | 44.77 | 50.32 | 46.58 | 54.30 | 69.94 | 75.67 | 79.97 | 79.48 | 72.70 | 57.74 | 52.07 | 50.16 | 61.14 | |||||||||||||
1971 | 48.29 | 46.71 | 55.58 | 58.37 | 66.52 | 79.13 | 78.23 | 74.74 | 70.70 | 61.94 | 53.93 | 44.81 | 61.58 | |||||||||||||
1972 | 50.06 | 53.52 | 61.10 | 64.33 | 66.97 | 78.63 | 78.48 | 76.03 | 72.87 | 62.71 | 44.03 | 47.52 | 63.02 | |||||||||||||
1973 | 43.86 | b | 47.79 | 47.68 | 52.03 | 66.94 | 77.20 | 79.52 | 80.48 | 74.17 | 67.74 | 58.10 | 48.06 | 61.96 | ||||||||||||
1974 | 44.58 | 50.14 | 59.67 | j | 60.70 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 51.81 | i | |||
1975 | ----- | z | ----- | z | 50.76 | n | 58.17 | a | 68.06 | 77.69 | a | 78.17 | b | 80.39 | 72.07 | 69.41 | b | 55.43 | 46.88 | o | 69.92 | d | ||||
1976 | 48.06 | 51.86 | 50.10 | 58.07 | a | 65.45 | 77.80 | 80.00 | 78.00 | a | 70.97 | 59.71 | 51.93 | 48.26 | 61.68 | |||||||||||
1977 | 41.55 | 48.96 | 49.84 | 56.70 | 68.16 | 77.87 | 79.45 | 78.13 | 74.50 | 68.21 | g | 53.90 | 48.45 | 61.59 | a | |||||||||||
1978 | 43.61 | 44.93 | 53.48 | 62.93 | 64.96 | g | 79.88 | f | 82.60 | a | 79.56 | d | 75.48 | a | 66.36 | i | 51.07 | c | 42.43 | a | 59.57 | c | ||||
1979 | 37.26 | 44.61 | 49.42 | 57.77 | 64.23 | 74.93 | 81.94 | 77.16 | 76.00 | ----- | z | ----- | z | ----- | z | 62.59 | c | |||||||||
1980 | ----- | z | ----- | z | 48.63 | a | 56.00 | a | 62.43 | a | 82.03 | a | 85.54 | g | 78.96 | d | 77.40 | j | 64.27 | a | 64.85 | q | 53.22 | m | 65.39 | f |
1981 | ----- | z | 52.41 | a | 47.10 | b | 64.54 | d | 63.69 | b | 80.63 | 78.06 | 73.61 | 70.53 | 62.65 | 55.80 | ----- | z | 64.90 | b | ||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 45.22 | 46.95 | 51.73 | 59.21 | 66.90 | 77.39 | 79.37 | 77.50 | 72.95 | 63.49 | 53.40 | 45.42 | 61.89 | |||||||||||||
S.D. | 3.32 | 4.38 | 5.61 | 3.29 | 3.49 | 3.09 | 2.09 | 2.69 | 2.51 | 4.01 | 5.29 | 4.18 | 1.14 | |||||||||||||
SKEW | -0.11 | -0.04 | 0.34 | -0.23 | -0.38 | 0.08 | 0.02 | -0.07 | -0.17 | 0.27 | 0.40 | -0.12 | 1.07 | |||||||||||||
MAX | 51.68 | 56.68 | 61.10 | 64.54 | 73.35 | 84.53 | 82.90 | 82.26 | 78.17 | 73.13 | 68.13 | 54.81 | 64.78 | |||||||||||||
MIN | 37.26 | 36.41 | 43.26 | 52.03 | 58.81 | 71.17 | 74.61 | 71.68 | 66.20 | 56.34 | 44.03 | 37.03 | 60.09 | |||||||||||||
YRS | 27 | 27 | 25 | 27 | 28 | 28 | 28 | 32 | 29 | 26 | 26 | 25 | 13 |