YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1905 | 51.89 | 55.39 | 59.61 | 63.52 | 69.05 | 81.05 | 87.10 | 89.48 | 82.42 | f | 68.66 | 56.67 | 47.29 | 66.34 | a | |||||||||||
1906 | 48.55 | 56.38 | 60.25 | a | 64.98 | a | 72.00 | 81.08 | 90.53 | 86.13 | a | 79.95 | 69.44 | 57.05 | 52.81 | 68.26 | ||||||||||
1907 | 51.17 | a | 57.21 | 58.88 | a | 66.79 | a | 71.28 | b | 78.50 | 88.79 | 88.39 | 83.12 | 71.34 | 60.05 | 51.23 | 68.90 | |||||||||
1908 | 52.19 | 55.17 | 61.57 | a | 68.30 | 71.40 | 80.27 | 90.92 | 89.24 | 82.50 | 65.55 | 60.48 | 52.42 | 69.17 | ||||||||||||
1909 | 54.23 | a | 52.68 | 56.21 | 66.47 | 72.03 | 82.62 | 87.85 | 87.21 | 80.37 | 69.27 | 57.30 | 47.06 | 67.78 | ||||||||||||
1910 | 50.13 | 52.79 | 64.81 | 69.48 | 77.81 | 83.05 | 88.65 | 89.02 | a | 84.32 | 70.50 | 58.70 | 52.15 | 70.12 | ||||||||||||
1911 | 53.77 | 51.52 | 61.98 | 66.00 | 71.77 | 82.08 | 85.60 | 86.82 | 82.57 | 67.71 | 55.30 | 43.87 | 67.42 | |||||||||||||
1912 | 50.18 | 53.09 | 57.52 | 62.13 | 72.68 | 85.38 | 84.97 | 86.05 | a | 77.58 | 66.50 | 56.30 | 46.76 | 66.59 | ||||||||||||
1913 | 44.92 | 52.27 | 56.02 | a | 66.52 | 72.63 | 80.97 | 86.72 | b | 86.91 | b | 81.12 | 68.19 | 60.70 | 49.68 | 67.22 | ||||||||||
1914 | 52.90 | 53.71 | 62.00 | 68.32 | 74.45 | 83.83 | 88.60 | 88.56 | 82.97 | 69.69 | 61.68 | 48.70 | a | 69.62 | ||||||||||||
1915 | 48.42 | 53.02 | 58.83 | a | 66.97 | a | 71.10 | 81.68 | 87.15 | 88.39 | 78.67 | c | 69.93 | d | 56.33 | i | 49.13 | 68.48 | a | |||||||
1916 | 49.74 | 57.11 | a | 63.11 | 67.18 | 72.97 | 82.02 | 87.89 | 89.66 | b | 80.82 | 66.08 | 53.40 | 44.34 | 67.86 | |||||||||||
1917 | 47.58 | 51.64 | 55.03 | 64.09 | a | 69.72 | a | 83.84 | a | 89.88 | a | 86.80 | a | 80.05 | j | 74.59 | o | 57.48 | 50.06 | 65.61 | b | |||||
1918 | 47.27 | 52.92 | c | 61.53 | 65.83 | 70.37 | 87.48 | 87.41 | b | 83.56 | 80.58 | 69.22 | a | 55.82 | 47.02 | a | 67.42 | |||||||||
1919 | 47.81 | 47.91 | a | 54.31 | 67.35 | 75.07 | b | 82.30 | c | 86.61 | 86.19 | 79.65 | 64.16 | 55.15 | 51.03 | a | 66.46 | |||||||||
1920 | 51.41 | h | 55.29 | 55.75 | a | 61.67 | 71.48 | f | 81.02 | 87.55 | 85.00 | q | 77.18 | 65.37 | a | 55.68 | 46.37 | 65.10 | c | |||||||
1921 | 48.18 | c | 54.16 | 61.48 | a | 63.30 | 69.71 | 80.85 | 86.32 | c | 84.26 | d | 78.98 | 70.45 | a | 57.37 | d | 52.50 | 67.30 | |||||||
1922 | 45.16 | 50.81 | b | 53.86 | b | 61.00 | d | 74.02 | 83.70 | h | 87.48 | b | 86.84 | b | 81.97 | 67.90 | a | 51.45 | 50.90 | 64.67 | a | |||||
1923 | 51.26 | 52.04 | 55.39 | 64.25 | j | 74.66 | 76.19 | c | 85.52 | c | 84.31 | b | 77.13 | c | ----- | z | 55.85 | g | 47.18 | 67.07 | c | |||||
1924 | 45.04 | c | 52.98 | 52.37 | 61.08 | 74.45 | 81.30 | o | 86.98 | 85.74 | 80.42 | 64.65 | 56.62 | 46.18 | c | 64.23 | a | |||||||||
1925 | 44.61 | 53.64 | 58.90 | 64.72 | 74.72 | b | 80.22 | e | 87.89 | c | 82.39 | c | ----- | z | ----- | z | 53.50 | p | 47.81 | b | 66.10 | c | ||||
1926 | 43.32 | c | 52.06 | b | 58.48 | a | 64.57 | b | 70.75 | e | 80.20 | b | 84.93 | c | 84.08 | a | 79.28 | 68.60 | f | 54.69 | a | 48.19 | e | 65.51 | a | |
1927 | ----- | z | 55.65 | h | 55.74 | f | 63.64 | b | 74.16 | l | 81.98 | a | 88.85 | k | 86.55 | 80.48 | f | 68.42 | a | 59.19 | a | 47.81 | b | 67.93 | f | |
1928 | 49.19 | 50.59 | 60.11 | 63.85 | 76.83 | a | 81.98 | 89.68 | 85.74 | 81.34 | a | 68.76 | f | 55.22 | a | 48.05 | a | 67.51 | a | |||||||
1929 | 47.37 | e | 49.64 | 55.14 | c | 62.03 | a | 74.31 | b | 81.75 | 89.29 | b | 87.23 | a | 80.13 | c | 71.32 | a | 53.12 | b | 51.00 | d | 66.86 | |||
1930 | 48.60 | b | 55.77 | b | 57.32 | 67.77 | b | 69.23 | c | 81.73 | f | 88.39 | h | 90.62 | c | 75.75 | p | 65.89 | 57.85 | 48.97 | 62.45 | c | ||||
1931 | 48.52 | c | 55.09 | a | 57.97 | 68.63 | 77.02 | 84.08 | 92.71 | 87.10 | 82.20 | 68.47 | 54.27 | 46.45 | a | 68.54 | ||||||||||
1932 | 42.82 | 53.48 | 56.95 | 64.48 | 72.77 | 80.63 | 88.02 | 88.08 | 82.45 | 67.13 | 57.33 | 44.90 | b | 66.59 | ||||||||||||
1933 | 45.26 | b | 45.46 | 55.82 | 59.59 | a | 67.19 | 81.93 | 91.15 | 88.97 | 82.93 | 72.03 | 57.47 | 48.69 | 66.37 | |||||||||||
1934 | 49.13 | 55.00 | 63.21 | 69.42 | 78.50 | a | 79.37 | 89.92 | 87.58 | a | 80.67 | 69.42 | e | 56.33 | 51.10 | a | 69.14 | |||||||||
1935 | 51.05 | b | 53.71 | 53.47 | a | 64.02 | 70.29 | 83.95 | 87.32 | 85.27 | 80.12 | a | 67.37 | e | 52.15 | 50.15 | 66.57 | |||||||||
1936 | 46.83 | a | 51.59 | 59.21 | 67.70 | 77.66 | 85.73 | 88.82 | 87.90 | 79.28 | 67.71 | 57.69 | a | 48.55 | c | 68.22 | ||||||||||
1937 | 40.23 | 50.59 | 55.37 | 62.88 | 75.23 | 81.67 | 88.81 | 87.81 | 82.17 | 68.60 | b | 55.93 | a | 52.45 | 66.81 | |||||||||||
1938 | 50.18 | a | 52.26 | a | 55.05 | 64.17 | 72.69 | b | 82.21 | a | 86.44 | 86.27 | 81.50 | 66.17 | a | 50.12 | 50.73 | a | 66.48 | |||||||
1939 | 47.97 | a | 44.74 | a | 57.97 | 67.55 | 75.02 | 82.43 | 89.10 | 86.74 | 79.52 | 66.97 | 60.42 | 52.35 | 67.56 | |||||||||||
1940 | 51.58 | 52.41 | 59.56 | 66.43 | 78.34 | i | 85.59 | a | 88.97 | a | 87.89 | 81.45 | 69.44 | 54.59 | c | 54.25 | k | 69.79 | b | |||||||
1941 | 51.26 | h | 54.73 | h | 55.89 | c | 60.25 | 73.68 | 79.38 | 86.87 | 84.44 | 77.00 | 64.66 | 58.12 | b | 50.52 | g | 71.14 | c | |||||||
1942 | 49.48 | f | 48.59 | a | 53.78 | b | 62.33 | 70.65 | 79.83 | 87.42 | a | 84.53 | 79.65 | 67.69 | 57.88 | 50.60 | j | 69.24 | b | |||||||
1943 | 48.41 | c | 54.67 | a | 59.17 | b | 66.98 | 73.87 | a | 80.48 | b | 89.08 | f | 85.32 | 82.12 | 68.45 | a | 57.03 | 50.80 | a | 66.12 | a | ||||
1944 | 49.10 | f | 50.83 | b | 54.55 | 61.23 | 71.47 | a | 75.30 | c | 85.28 | h | 87.60 | a | 80.62 | 71.34 | 56.96 | e | 51.92 | l | 67.77 | c | ||||
1945 | 49.09 | h | 52.38 | 53.92 | 62.18 | 71.40 | 75.21 | p | 87.23 | e | 87.79 | 80.80 | e | 71.45 | a | 56.22 | 48.34 | 67.17 | b | |||||||
1946 | 48.76 | 52.11 | i | 58.45 | i | 69.78 | a | 72.41 | i | 81.58 | 87.45 | b | 87.24 | 81.17 | 64.92 | g | 52.74 | a | 53.28 | a | 70.25 | d | ||||
1947 | 47.66 | b | 55.77 | 58.52 | 63.12 | 73.98 | a | 78.35 | c | 87.92 | e | 86.55 | 83.24 | a | 69.67 | g | 54.25 | f | 48.39 | 68.35 | b | |||||
1948 | 46.53 | n | 52.09 | b | 53.62 | a | 65.98 | g | 72.02 | 78.91 | b | 87.19 | 88.42 | m | 83.09 | h | 72.45 | 53.98 | a | 49.36 | c | 64.95 | d | |||
1949 | 43.00 | d | 49.54 | 56.56 | 66.08 | 72.02 | i | 80.54 | g | 87.37 | a | 83.85 | a | 83.17 | 65.76 | 62.10 | 51.70 | i | 66.38 | c | ||||||
1950 | 47.44 | 55.86 | 57.75 | a | 67.97 | a | 70.89 | 80.00 | a | 87.10 | 84.76 | b | 76.83 | a | 73.00 | 61.48 | 55.05 | 68.18 | ||||||||
1951 | 49.43 | a | 52.91 | a | 56.83 | e | 64.25 | 72.16 | 78.03 | 87.87 | a | 84.20 | a | 78.90 | 69.30 | a | 55.64 | a | 49.41 | h | 68.14 | a | ||||
1952 | 47.18 | a | ----- | z | 50.87 | a | 62.59 | b | 75.45 | a | 80.81 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 63.38 | g |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 48.27 | 52.65 | 57.53 | 64.98 | 72.91 | 81.41 | 87.95 | 86.67 | 80.64 | 68.44 | 56.65 | 49.25 | 67.73 | |||||||||||||
S.D. | 3.06 | 2.73 | 3.14 | 2.69 | 2.55 | 2.40 | 1.63 | 1.84 | 1.90 | 2.27 | 2.73 | 2.57 | 1.09 | |||||||||||||
SKEW | -0.36 | -0.82 | 0.24 | -0.06 | 0.23 | 0.01 | 0.62 | -0.16 | -0.32 | 0.03 | -0.06 | 0.01 | 0.56 | |||||||||||||
MAX | 54.23 | 57.21 | 64.81 | 69.78 | 78.50 | 87.48 | 92.71 | 90.62 | 84.32 | 73.00 | 62.10 | 55.05 | 70.12 | |||||||||||||
MIN | 40.23 | 44.74 | 50.87 | 59.59 | 67.19 | 75.30 | 84.93 | 82.39 | 76.83 | 64.16 | 50.12 | 43.87 | 66.37 | |||||||||||||
YRS | 41 | 44 | 46 | 46 | 43 | 43 | 43 | 45 | 41 | 40 | 43 | 41 | 24 |