YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1906 | 60.20 | p | 56.86 | 62.23 | a | 71.57 | 80.00 | 90.66 | a | 86.74 | 88.68 | ----- | z | ----- | z | ----- | z | ----- | z | 76.68 | e | |||||
1907 | ----- | z | ----- | z | ----- | z | 69.67 | u | 76.37 | a | 84.66 | a | 92.87 | 91.20 | a | 87.60 | 74.16 | 58.63 | 55.32 | 77.60 | d | |||||
1908 | 56.23 | 56.34 | 73.14 | c | 73.00 | 82.13 | a | 94.76 | a | 91.77 | 89.77 | 87.52 | a | 73.94 | 59.80 | 56.74 | 74.60 | |||||||||
1909 | 60.74 | 61.07 | 65.30 | u | 73.93 | 79.10 | 92.43 | 94.97 | 93.97 | 86.07 | 74.67 | a | 67.07 | 45.77 | a | 75.43 | a | |||||||||
1910 | 57.97 | b | 57.70 | a | 76.58 | 77.83 | 82.86 | b | 95.96 | c | 98.07 | a | 91.72 | b | 89.04 | c | 80.29 | g | 68.76 | i | 54.35 | e | 78.21 | b | ||
1911 | 59.46 | c | 52.28 | c | 67.96 | e | 74.75 | f | 84.42 | e | 94.65 | g | 91.18 | c | 95.32 | c | 89.65 | d | 71.97 | b | 61.15 | d | 43.04 | c | 71.64 | b |
1912 | 51.29 | 50.70 | b | 56.83 | b | 70.14 | a | 82.31 | b | 86.63 | c | 95.19 | d | 91.23 | a | 81.56 | c | 77.55 | 65.85 | d | 52.34 | b | 71.80 | |||
1913 | 52.48 | 52.37 | a | 65.80 | k | 76.00 | a | 87.62 | b | 87.97 | 98.58 | 99.35 | 83.00 | t | 65.33 | m | 68.28 | a | 45.20 | a | 74.21 | c | ||||
1914 | 61.77 | a | 59.11 | 68.16 | 70.53 | 75.95 | k | 91.42 | f | 87.46 | c | 88.79 | c | 85.71 | f | 72.46 | g | 66.71 | f | 48.30 | k | 72.64 | f | |||
1915 | 49.54 | c | 57.25 | l | 53.32 | l | 74.25 | r | ----- | z | 93.89 | l | 92.65 | k | 89.75 | s | 87.86 | b | 78.59 | d | 73.62 | a | 56.71 | 69.26 | g | |
1916 | 54.08 | g | 67.55 | g | 77.40 | k | 68.27 | o | 84.68 | i | 94.13 | g | 93.36 | c | 92.26 | l | 86.00 | n | 85.48 | j | 62.24 | e | 63.32 | c | 72.97 | i |
1917 | 62.53 | a | 65.96 | 72.07 | a | 74.79 | a | 81.90 | a | 95.50 | 97.24 | b | 97.71 | c | 93.83 | 86.65 | 78.83 | 72.17 | m | 82.46 | a | |||||
1918 | 51.59 | d | ----- | z | ----- | z | 71.38 | a | 84.92 | g | 91.95 | h | 92.42 | e | 90.25 | g | ----- | z | ----- | z | ----- | z | ----- | z | 71.80 | i |
1919 | ----- | z | ----- | z | ----- | z | 66.54 | b | 77.19 | 82.37 | 88.48 | 93.52 | 87.40 | 75.26 | 67.69 | a | ----- | z | 79.81 | d | ||||||
1920 | 61.38 | b | 64.48 | 69.71 | 76.10 | 82.35 | 88.23 | 91.39 | 88.13 | a | 86.63 | 75.60 | a | 58.63 | 56.03 | 74.89 | ||||||||||
1921 | 55.16 | 58.14 | 66.58 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.96 | i | ||
1922 | ----- | z | ----- | z | ----- | z | 70.63 | 79.60 | a | 86.23 | 90.90 | 90.80 | a | 80.43 | b | 75.55 | 64.50 | f | 59.32 | 79.18 | d | |||||
1923 | 60.67 | a | 48.36 | 52.20 | a | 66.40 | 80.23 | 88.03 | 94.56 | f | 87.00 | j | 83.17 | 65.42 | 57.28 | a | 45.74 | 64.75 | b | |||||||
1924 | 49.52 | 58.72 | 53.61 | 71.53 | 76.74 | 95.23 | 91.06 | 93.35 | 84.93 | 78.21 | q | 67.03 | 45.30 | a | 71.55 | a | ||||||||||
1925 | 50.32 | 64.86 | 70.55 | b | 78.03 | 82.71 | 92.23 | 94.65 | 85.23 | 83.17 | 64.97 | 60.73 | 54.33 | a | 73.48 | |||||||||||
1926 | 48.42 | 65.41 | a | 58.13 | 66.90 | a | 76.71 | 88.43 | 88.94 | 95.58 | 86.57 | 78.03 | a | 64.93 | b | 46.84 | 72.07 | |||||||||
1927 | 59.03 | a | 50.54 | 58.45 | 72.86 | b | 89.77 | 88.57 | 92.26 | 87.74 | 85.31 | a | 80.71 | 67.93 | a | 46.95 | l | 75.74 | a | |||||||
1928 | 51.67 | a | 50.12 | c | 67.42 | e | 66.17 | f | 76.65 | e | 87.96 | g | 93.62 | b | 89.82 | i | 86.65 | d | 72.21 | b | 55.43 | 50.55 | 67.15 | c | ||
1929 | 52.90 | b | 41.68 | 61.68 | 72.48 | a | 74.94 | 89.17 | 93.50 | a | 91.55 | 83.67 | ----- | z | 47.63 | 54.26 | 69.40 | a | ||||||||
1930 | 40.29 | 67.79 | 61.04 | e | 78.90 | 79.90 | 89.33 | 91.81 | 91.68 | 88.93 | c | 68.19 | 59.77 | 50.22 | d | 72.32 | ||||||||||
1931 | 45.34 | b | 54.78 | a | 52.76 | b | 65.42 | d | 73.88 | g | 93.23 | 94.45 | b | 88.10 | 89.95 | h | 75.26 | 58.47 | 46.33 | a | 67.41 | b | ||||
1932 | 43.31 | b | 59.82 | a | 54.07 | b | 66.00 | a | 77.65 | 82.90 | 91.13 | 87.50 | a | 76.10 | 68.55 | 58.00 | 39.79 | b | 67.07 | |||||||
1933 | 54.19 | 51.43 | 64.72 | b | 67.86 | b | 77.65 | 88.67 | 95.55 | 89.55 | 87.60 | 77.77 | 64.53 | 66.00 | a | 73.79 | ||||||||||
1934 | 56.42 | 58.93 | 66.43 | a | 75.00 | a | 85.87 | 94.63 | 98.52 | 94.06 | 85.48 | c | 79.90 | 63.30 | 57.13 | 76.31 | ||||||||||
1935 | 55.19 | 58.81 | b | 68.84 | 76.38 | a | 75.45 | b | 91.03 | 95.32 | 91.81 | 82.21 | b | 75.07 | a | 60.13 | 49.45 | 73.31 | ||||||||
1936 | 46.90 | 54.31 | 67.68 | 74.07 | 80.16 | 92.63 | 94.68 | 95.48 | 81.77 | 71.68 | 61.34 | a | 53.65 | e | 72.86 | |||||||||||
1937 | 45.71 | 57.00 | b | 56.64 | c | 74.38 | a | 80.90 | a | 88.04 | f | 95.14 | c | 95.37 | a | 85.63 | 75.35 | 63.07 | a | 51.80 | f | 72.92 | b | |||
1938 | 57.29 | g | 55.61 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 97.26 | 86.44 | e | ----- | z | 61.47 | 55.60 | a | 71.27 | g | ||
1939 | 54.42 | 48.54 | b | 67.81 | 75.22 | c | 81.65 | 92.90 | 94.61 | 92.97 | a | 90.00 | 76.42 | 60.59 | c | 55.46 | c | 74.22 | ||||||||
1940 | 41.60 | a | 56.59 | 66.90 | b | 74.46 | b | 83.48 | 89.77 | 98.13 | 91.07 | a | 90.10 | a | 80.23 | a | 57.28 | a | 55.10 | a | 73.73 | |||||
1941 | 52.29 | 56.43 | 58.03 | 68.57 | 78.45 | b | 84.28 | a | 88.39 | 91.42 | 84.07 | 71.37 | a | 65.59 | a | 55.00 | b | 71.16 | ||||||||
1942 | 54.30 | a | 54.22 | a | 62.39 | 71.23 | 82.48 | b | 88.38 | a | 94.45 | 90.35 | 83.17 | 71.32 | 71.97 | 59.87 | h | 74.93 | a | |||||||
1943 | 57.05 | k | 65.07 | n | ----- | z | 85.69 | q | 86.11 | c | 93.03 | 96.77 | a | 99.67 | a | 92.29 | b | ----- | z | 62.33 | r | 47.10 | b | 85.83 | f | |
1944 | 42.78 | v | 62.19 | b | 67.69 | b | 76.33 | 85.73 | a | 93.78 | c | 94.73 | a | 97.16 | ----- | z | 78.71 | n | 68.57 | b | 55.53 | a | 77.97 | c | ||
1945 | 60.40 | a | 66.07 | a | 76.94 | 82.47 | k | 93.57 | c | 96.93 | a | 97.03 | a | ----- | z | 95.85 | c | 83.21 | g | 75.61 | b | 64.55 | b | 80.77 | c | |
1946 | 61.65 | 70.08 | b | 78.46 | g | 87.85 | d | 87.00 | e | 97.53 | o | 99.29 | c | 95.97 | 90.34 | a | ----- | z | 59.40 | j | ----- | z | 84.60 | e | ||
1947 | 59.60 | f | 59.56 | a | 67.36 | c | 75.20 | 84.48 | 95.30 | 98.09 | t | 94.72 | b | 95.24 | a | 84.63 | d | 61.34 | a | 55.48 | b | 77.33 | b | |||
1948 | 53.81 | e | 52.15 | b | 58.93 | d | 83.19 | c | 85.52 | f | 93.79 | a | 99.29 | c | 96.25 | c | 91.20 | o | 83.20 | p | 65.00 | t | ----- | z | 76.77 | e |
1949 | 46.75 | s | 59.67 | a | ----- | z | 74.38 | d | 84.36 | i | 89.45 | a | 95.04 | c | 95.85 | e | 92.88 | v | ----- | z | ----- | z | ----- | z | 82.88 | g |
1950 | ----- | z | ----- | z | 73.40 | p | 79.18 | b | 85.81 | 94.90 | 90.77 | 92.52 | 82.17 | 83.45 | 66.20 | 58.94 | 81.55 | c | ||||||||
1951 | 51.97 | a | 60.37 | a | 64.81 | 74.50 | 83.42 | 91.79 | b | 98.87 | a | 98.10 | 91.82 | b | 77.87 | 60.20 | 56.32 | 75.84 | ||||||||
1952 | 57.74 | 60.90 | 61.93 | d | 74.77 | 84.27 | a | 98.37 | 96.55 | 98.52 | d | 83.60 | 71.74 | 54.52 | e | 50.26 | 74.43 | |||||||||
1953 | 63.13 | 57.04 | a | 70.10 | 73.93 | 83.13 | 100.37 | 97.52 | 92.52 | 90.10 | a | 75.58 | 64.73 | 51.29 | 76.62 | |||||||||||
1954 | 57.23 | 69.32 | 66.03 | 83.00 | b | 80.35 | 97.57 | g | 99.90 | 94.94 | 89.93 | 75.94 | 67.57 | 59.26 | 76.68 | a | ||||||||||
1955 | 52.84 | 57.14 | 68.87 | 75.60 | 81.74 | 91.43 | 92.94 | 95.26 | 88.27 | 78.87 | 65.45 | a | 60.86 | b | 75.77 | |||||||||||
1956 | 58.65 | 55.36 | a | 70.35 | 76.41 | a | 90.19 | 96.37 | 95.39 | 94.33 | a | 93.37 | 79.90 | 62.80 | 58.83 | a | 77.66 | |||||||||
1957 | 56.13 | 66.14 | 65.00 | a | 71.10 | 78.90 | 92.90 | 98.87 | 92.55 | 86.10 | 70.10 | 54.40 | 60.61 | 74.40 | ||||||||||||
1958 | 50.68 | 57.70 | a | 53.58 | 69.93 | 83.16 | 94.18 | b | 93.68 | 93.39 | 83.83 | 71.94 | 65.67 | 58.00 | 72.98 | |||||||||||
1959 | 50.77 | 57.89 | 67.65 | 74.00 | 83.84 | 92.30 | 92.19 | 92.13 | 88.03 | 72.42 | 62.21 | b | 50.35 | 73.65 | ||||||||||||
1960 | 47.73 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 47.73 | k |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 53.76 | 57.84 | 64.43 | 73.72 | 81.98 | 91.39 | 94.20 | 93.07 | 86.90 | 75.23 | 63.13 | 53.72 | 73.77 | |||||||||||||
S.D. | 5.74 | 5.93 | 6.41 | 4.60 | 4.08 | 4.09 | 3.31 | 3.37 | 4.08 | 4.81 | 5.82 | 5.95 | 2.22 | |||||||||||||
SKEW | -0.36 | -0.08 | -0.28 | 0.55 | 0.52 | -0.23 | -0.25 | -0.08 | 0.02 | 0.09 | 0.24 | -0.22 | -0.97 | |||||||||||||
MAX | 63.13 | 70.08 | 76.94 | 87.85 | 93.57 | 100.37 | 99.90 | 99.67 | 95.85 | 86.65 | 78.83 | 66.00 | 77.66 | |||||||||||||
MIN | 40.29 | 41.68 | 52.20 | 65.42 | 74.94 | 82.37 | 86.74 | 85.23 | 76.10 | 64.97 | 47.63 | 39.79 | 67.07 | |||||||||||||
YRS | 44 | 46 | 41 | 45 | 45 | 43 | 49 | 47 | 44 | 38 | 44 | 42 | 22 |