YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | 87.55 | a | 85.68 | 84.13 | 78.90 | 68.29 | 57.73 | 56.87 | 74.16 | e | ||||||
1940 | 49.61 | 53.34 | 62.42 | 68.07 | 77.48 | 83.90 | 85.45 | 82.90 | 78.37 | 70.10 | 56.50 | 53.77 | 68.49 | |||||||||||||
1941 | 47.94 | 54.07 | 55.19 | 60.70 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 54.48 | h | ||||
1942 | ----- | z | ----- | z | 58.47 | n | 69.23 | 80.65 | 91.60 | 88.42 | 81.68 | 76.83 | 67.26 | 66.03 | 54.13 | 75.09 | c | |||||||||
1943 | 51.23 | 60.71 | 63.06 | 75.97 | 81.71 | 86.20 | 84.35 | 89.19 | 78.93 | 69.79 | c | 60.45 | a | 45.55 | 70.60 | |||||||||||
1944 | 47.10 | a | 52.69 | 60.84 | 73.23 | 77.94 | 87.77 | 86.94 | 84.19 | 77.72 | a | 73.44 | o | 53.63 | 51.06 | 68.46 | a | |||||||||
1945 | 51.39 | 59.26 | a | 59.39 | 68.55 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.65 | h | ||
1946 | ----- | z | ----- | z | ----- | z | 77.10 | t | 78.46 | c | 91.04 | b | 87.68 | f | 86.33 | d | 81.78 | c | 74.00 | m | 56.75 | f | 58.26 | h | 84.40 | h |
1947 | 52.36 | t | 61.52 | g | 66.00 | b | 71.07 | b | 79.97 | 86.52 | i | 90.10 | 82.97 | 83.20 | 75.41 | b | 56.57 | 53.06 | 73.15 | c | ||||||
1948 | 59.32 | l | 54.12 | c | 55.70 | a | 72.59 | a | 79.61 | 88.23 | 89.71 | 91.16 | 84.70 | 72.53 | a | 60.37 | c | 54.79 | b | 73.05 | a | |||||
1949 | 39.57 | a | 55.31 | b | 63.75 | c | 69.96 | c | 78.11 | d | 86.86 | a | 87.14 | c | 87.84 | f | 82.37 | 69.93 | a | 69.09 | g | 52.13 | a | 68.51 | b | |
1950 | 55.83 | g | 60.94 | l | 69.58 | l | 74.53 | 77.94 | 89.97 | a | 82.52 | 86.66 | b | 80.77 | d | 79.83 | a | 67.04 | c | 63.11 | m | 79.91 | d | |||
1951 | 56.09 | h | 57.00 | 61.37 | a | 67.25 | b | 80.13 | 88.13 | 91.68 | 85.77 | 84.75 | b | 71.85 | k | 59.44 | c | 48.73 | p | 75.06 | c | |||||
1952 | 55.77 | e | 54.26 | b | 55.11 | d | 68.54 | f | 77.21 | b | 86.63 | 85.76 | b | 86.60 | a | 81.57 | 75.67 | d | 63.67 | o | 49.48 | 70.81 | b | |||
1953 | 59.84 | 56.00 | d | 61.84 | 68.33 | 72.71 | 89.75 | b | 86.45 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 70.70 | e | |||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 50.30 | 55.68 | 60.42 | 69.96 | 78.49 | 88.14 | 87.02 | 85.60 | 80.82 | 72.09 | 59.75 | 52.32 | 69.54 | |||||||||||||
S.D. | 6.03 | 2.62 | 3.68 | 4.02 | 2.30 | 2.18 | 2.59 | 2.83 | 2.68 | 4.12 | 4.41 | 3.32 | 1.49 | |||||||||||||
SKEW | -0.18 | 0.83 | -0.34 | -0.67 | -1.14 | -0.12 | 0.19 | 0.54 | 0.07 | 0.66 | 0.51 | -0.78 | -0.00 | |||||||||||||
MAX | 59.84 | 60.71 | 66.00 | 75.97 | 81.71 | 91.60 | 91.68 | 91.16 | 84.75 | 79.83 | 67.04 | 56.87 | 70.60 | |||||||||||||
MIN | 39.57 | 52.69 | 55.11 | 60.70 | 72.71 | 83.90 | 82.52 | 81.68 | 76.83 | 67.26 | 53.63 | 45.55 | 68.49 | |||||||||||||
YRS | 8 | 10 | 11 | 12 | 12 | 12 | 12 | 11 | 12 | 9 | 9 | 9 | 2 |