YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1918 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 84.23 | 71.43 | 66.45 | 49.70 | 41.00 | 62.56 | g | |||||
1919 | 41.97 | 42.39 | 50.69 | b | 61.07 | a | ----- | z | 76.80 | 82.97 | 84.97 | ----- | z | ----- | z | ----- | z | ----- | z | 62.98 | e | |||||
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 | 61.73 | 71.74 | 82.57 | 88.61 | 84.48 | 79.32 | b | 72.84 | 52.53 | 49.65 | 71.50 | c | ||||||||
1941 | 45.60 | a | 50.14 | 48.32 | 55.87 | 69.23 | a | 75.53 | 81.61 | c | 80.86 | b | 74.97 | 61.13 | a | 53.74 | k | ----- | z | 64.33 | b | |||||
1942 | ----- | z | 40.96 | 47.90 | 60.27 | d | 71.52 | b | 76.59 | a | 82.58 | 79.77 | 71.24 | a | 60.53 | a | 60.50 | 49.61 | 63.77 | a | ||||||
1943 | 47.20 | a | 54.25 | d | 55.29 | 69.32 | b | 69.53 | a | 82.63 | c | 88.13 | 85.70 | a | 79.50 | 70.80 | f | 57.53 | 46.26 | 66.85 | a | |||||
1944 | 45.26 | 46.69 | 53.39 | 54.20 | 69.94 | 78.33 | 84.39 | 85.19 | 79.67 | 66.55 | 54.10 | a | 45.10 | 63.57 | ||||||||||||
1945 | 43.58 | s | ----- | z | ----- | z | 58.30 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 58.30 | k | |
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 | 74.12 | o | 77.80 | 88.35 | 85.52 | 80.03 | 67.39 | 53.90 | 49.10 | 71.73 | e | |||||||
1952 | 50.06 | 46.48 | 49.84 | 60.37 | 71.10 | 87.24 | a | 86.81 | 86.29 | 79.03 | 69.32 | 47.90 | 45.29 | 64.98 | ||||||||||||
1953 | 51.58 | 47.29 | 58.19 | 62.30 | 66.83 | a | 89.30 | 86.81 | 83.68 | 82.93 | 67.57 | a | 57.47 | 44.87 | a | 66.57 | ||||||||||
1954 | 50.13 | 58.75 | 53.87 | a | 71.96 | b | 70.16 | 86.10 | 88.23 | 86.77 | 84.10 | 69.10 | 59.97 | a | 50.63 | d | 69.15 | |||||||||
1955 | 45.77 | 46.11 | 57.35 | 65.21 | f | 70.41 | b | 77.83 | 85.59 | b | 83.33 | p | 82.04 | b | 73.79 | b | 55.18 | b | 53.65 | 64.77 | b | |||||
1956 | 51.70 | a | 43.48 | 56.03 | a | 63.87 | 77.68 | 87.43 | 84.84 | 79.74 | l | 83.57 | 71.83 | h | 48.93 | o | 49.52 | 66.46 | c | |||||||
1957 | 46.84 | 56.93 | a | ----- | z | 57.33 | 66.50 | a | 78.77 | 85.10 | a | 84.60 | a | ----- | z | ----- | z | ----- | z | 54.47 | a | 66.32 | d | |||
1958 | 44.60 | a | 50.64 | 43.73 | a | 57.67 | 73.55 | 88.75 | v | 85.66 | b | 87.03 | a | 80.70 | 68.52 | 58.73 | 52.07 | b | 63.90 | a | ||||||
1959 | 43.77 | 47.33 | a | 52.67 | a | 62.57 | 72.29 | 82.79 | a | 86.17 | b | 85.10 | 76.81 | i | 63.87 | a | 56.00 | a | 46.10 | 63.51 | a | |||||
1960 | 39.81 | 34.52 | 50.07 | a | 65.83 | a | 70.68 | 82.53 | 85.16 | 87.97 | a | 78.73 | 65.74 | 57.57 | 40.93 | b | 63.29 | |||||||||
1961 | 42.00 | a | 44.07 | 50.48 | 62.67 | 72.74 | 80.80 | 83.74 | d | 82.19 | 74.93 | b | 67.83 | b | 48.93 | 41.47 | a | 62.65 | ||||||||
1962 | 38.35 | 52.36 | 51.47 | a | 64.90 | 79.65 | n | 80.37 | 86.10 | 90.29 | 77.38 | d | 72.00 | a | 56.76 | a | 49.71 | 65.43 | a | |||||||
1963 | 38.03 | 49.00 | 54.03 | 69.03 | 79.10 | 85.37 | 92.26 | 84.87 | 80.00 | ----- | z | 58.90 | 45.16 | 66.89 | a | |||||||||||
1964 | ----- | z | 35.59 | 46.42 | ----- | z | ----- | z | 82.53 | 91.71 | ----- | z | 77.03 | 69.94 | 52.63 | 46.13 | 62.75 | d | ||||||||
1965 | 48.26 | 45.71 | 43.39 | 66.30 | 72.00 | a | 78.43 | 86.87 | 82.26 | 73.76 | a | 70.00 | 60.33 | 50.97 | 64.86 | |||||||||||
1966 | 41.48 | 40.93 | 58.16 | 64.76 | a | 76.61 | 83.30 | 91.03 | 82.30 | a | 77.93 | b | 66.74 | 58.63 | c | 46.26 | 65.68 | |||||||||
1967 | 48.35 | 49.57 | 63.21 | b | 68.79 | a | 72.23 | 81.90 | 85.58 | 80.23 | 74.80 | 71.29 | 56.13 | 39.16 | 65.94 | |||||||||||
1968 | 47.16 | 49.48 | 55.07 | b | 61.37 | 68.39 | 86.57 | b | 86.45 | b | ----- | z | ----- | z | ----- | z | ----- | z | 47.77 | 62.78 | d | |||||
1969 | 52.94 | 49.29 | 43.65 | 64.83 | a | 72.61 | 75.43 | 85.68 | 86.23 | 77.77 | 59.45 | 52.20 | 45.58 | 63.80 | ||||||||||||
1970 | 44.42 | 54.71 | 48.52 | 58.97 | 75.03 | 81.04 | d | 87.84 | 86.10 | a | 77.83 | 59.93 | a | 54.07 | a | 51.55 | 65.00 | |||||||||
1971 | 49.75 | c | 46.00 | 57.77 | 61.63 | c | 70.23 | a | 86.03 | a | ----- | z | ----- | z | ----- | z | 65.78 | d | 53.57 | b | 45.77 | 59.62 | c | |||
1972 | 48.83 | a | 54.62 | 63.94 | 66.97 | 71.58 | 84.77 | 85.14 | b | 83.20 | a | 77.55 | a | 65.94 | 43.10 | ----- | z | 67.78 | a | |||||||
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 68.83 | b | 59.30 | 46.28 | b | 58.13 | i | |
1974 | 42.53 | a | ----- | z | ----- | z | 64.59 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 53.56 | j |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 45.86 | 47.59 | 52.54 | 62.87 | 71.74 | 81.81 | 86.42 | 84.58 | 78.18 | 67.10 | 55.03 | 47.19 | 65.04 | |||||||||||||
S.D. | 4.16 | 5.92 | 5.57 | 4.34 | 3.06 | 3.94 | 2.57 | 2.47 | 3.42 | 3.93 | 4.33 | 3.89 | 1.81 | |||||||||||||
SKEW | -0.21 | -0.28 | 0.18 | 0.06 | 0.66 | 0.05 | 0.52 | -0.05 | -0.30 | -0.44 | -0.93 | -0.15 | 0.87 | |||||||||||||
MAX | 52.94 | 58.75 | 63.94 | 71.96 | 79.10 | 89.30 | 92.26 | 90.29 | 84.10 | 73.79 | 60.50 | 54.47 | 69.15 | |||||||||||||
MIN | 38.03 | 34.52 | 43.39 | 54.20 | 66.50 | 75.43 | 81.61 | 79.77 | 71.24 | 59.45 | 43.10 | 39.16 | 62.65 | |||||||||||||
YRS | 25 | 26 | 25 | 27 | 24 | 27 | 27 | 24 | 24 | 24 | 25 | 27 | 11 |