YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 61.52 | 51.10 | 56.31 | j | ||
1921 | 54.53 | 59.77 | 64.69 | b | 66.26 | c | 72.74 | 83.83 | 86.85 | a | 84.39 | 83.74 | a | 76.27 | a | 64.36 | a | ----- | z | 72.49 | a | |||||
1922 | 53.21 | g | 53.33 | a | 57.08 | ----- | z | 71.16 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.53 | i | ||
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 84.83 | u | 87.74 | 86.24 | 79.79 | a | 67.08 | 59.37 | 51.06 | 71.88 | f | |||||
1924 | 49.98 | 57.59 | 55.10 | a | 64.15 | 78.34 | b | 86.90 | 89.81 | 89.39 | 84.04 | b | 69.86 | b | 62.52 | 50.84 | 69.88 | |||||||||
1925 | 50.92 | 58.88 | 63.98 | a | 68.67 | 78.92 | a | 84.07 | a | 91.61 | 88.13 | 81.78 | 69.81 | 59.95 | 54.71 | 70.95 | ||||||||||
1926 | 50.38 | a | 58.65 | b | 64.71 | 69.15 | 75.60 | b | 87.75 | b | 90.13 | 89.67 | a | 84.93 | a | 75.77 | 64.28 | 53.47 | 72.04 | |||||||
1927 | 58.35 | 59.70 | 60.02 | 68.48 | 77.14 | c | 84.72 | 92.05 | 89.17 | b | 85.05 | 75.63 | 66.92 | 53.45 | 72.56 | |||||||||||
1928 | 54.77 | a | 55.50 | a | 63.66 | 67.39 | b | 78.21 | b | 83.60 | a | 90.63 | 87.48 | c | 84.55 | a | 72.52 | 61.10 | 52.89 | 71.02 | ||||||
1929 | 50.48 | 52.67 | a | 59.52 | a | 65.79 | b | 76.55 | 84.59 | a | 89.02 | a | 88.15 | a | 82.83 | 74.44 | 58.57 | a | 57.50 | 70.01 | ||||||
1930 | 51.87 | 60.25 | 60.15 | d | 71.32 | 70.50 | c | 85.00 | 88.68 | 87.27 | 81.65 | 70.55 | b | 61.74 | a | 53.63 | 70.22 | |||||||||
1931 | 52.85 | 57.43 | 61.25 | a | 70.60 | a | 77.90 | b | 83.47 | 91.34 | 86.68 | a | 83.63 | 71.85 | a | 56.95 | a | 50.35 | 70.36 | |||||||
1932 | 46.07 | a | 55.73 | a | 60.12 | a | 67.74 | a | 73.90 | a | 81.59 | a | 88.88 | o | 89.50 | b | 84.36 | a | 70.74 | 62.40 | a | 48.74 | 67.35 | a | ||
1933 | 48.08 | 49.12 | 60.08 | 62.91 | a | 69.10 | 83.88 | 91.29 | 89.00 | a | 84.90 | 75.85 | 61.87 | 53.81 | 69.16 | |||||||||||
1934 | 53.56 | 59.20 | a | 68.00 | b | 72.23 | b | 79.35 | 79.80 | 90.08 | 86.74 | 81.88 | 73.85 | 59.92 | 54.90 | 71.63 | ||||||||||
1935 | 51.67 | a | 56.86 | 55.87 | 66.37 | 70.86 | b | 84.76 | a | 88.44 | 85.68 | 81.48 | 70.27 | 55.83 | a | 53.23 | 68.44 | |||||||||
1936 | 50.47 | 54.12 | 61.85 | 69.67 | 76.81 | 85.42 | 88.56 | 88.24 | 81.02 | 71.66 | b | 61.97 | 51.73 | 70.13 | ||||||||||||
1937 | 41.62 | a | 53.09 | a | 57.27 | a | 65.81 | a | 75.39 | 82.70 | 89.65 | 90.18 | 85.37 | c | 73.90 | 61.42 | 57.26 | 69.47 | ||||||||
1938 | 54.68 | 56.06 | b | 58.66 | 67.81 | a | 73.66 | 82.54 | b | 87.89 | 87.65 | 85.23 | 70.97 | b | 55.45 | 55.44 | 69.67 | |||||||||
1939 | 51.58 | 48.66 | c | 61.35 | a | 69.35 | d | 76.30 | a | 83.00 | 90.23 | 89.26 | 82.29 | a | 70.52 | 65.02 | a | 57.55 | a | 70.42 | ||||||
1940 | 55.37 | 55.97 | 65.16 | c | 69.57 | a | 79.53 | a | 86.57 | a | 90.32 | 90.15 | 84.73 | d | 72.97 | 58.57 | 56.16 | 72.09 | ||||||||
1941 | 53.70 | a | 57.82 | 59.15 | a | 61.33 | 74.65 | a | 80.03 | 87.65 | a | 85.53 | 78.58 | 67.27 | 61.33 | 53.10 | 68.35 | |||||||||
1942 | 52.97 | b | 51.66 | 58.64 | b | 64.93 | 72.16 | 81.47 | 89.68 | 85.89 | 82.45 | 70.55 | 62.63 | 54.81 | b | 68.99 | ||||||||||
1943 | 52.27 | 58.25 | 61.98 | 69.07 | 75.45 | b | 80.40 | a | 88.56 | 87.54 | c | 83.08 | 71.73 | 60.58 | 53.90 | a | 70.23 | |||||||||
1944 | 50.81 | 52.14 | a | 56.86 | b | 62.92 | 73.08 | a | 78.10 | 87.02 | 88.37 | a | 82.78 | 74.18 | 58.03 | 52.97 | a | 68.10 | ||||||||
1945 | 51.40 | a | 56.08 | b | 56.62 | a | 65.26 | a | 74.27 | 79.48 | 89.44 | 88.98 | a | 83.15 | 74.71 | 58.85 | 50.18 | 69.03 | ||||||||
1946 | 50.98 | 53.18 | 62.02 | a | 72.02 | 74.08 | 84.23 | 89.02 | 89.24 | 84.43 | 67.56 | 55.73 | 55.08 | a | 69.80 | |||||||||||
1947 | 49.58 | 58.54 | 62.77 | 67.29 | a | 77.61 | 82.08 | 91.29 | 88.12 | a | 86.47 | 73.27 | 56.33 | 50.56 | 70.33 | |||||||||||
1948 | 52.58 | 53.04 | c | 55.89 | 67.22 | a | 73.82 | a | 80.96 | f | 87.92 | 88.47 | 83.62 | 73.76 | 56.20 | 51.31 | 67.62 | a | ||||||||
1949 | 44.29 | 51.55 | 58.52 | b | 69.21 | a | 73.35 | 82.33 | 88.31 | 84.81 | 84.66 | a | 68.47 | 64.86 | b | 52.50 | 68.57 | |||||||||
1950 | 50.07 | b | 58.23 | 60.77 | 69.97 | a | 72.37 | 81.17 | 87.02 | 85.92 | 79.65 | 76.50 | a | 63.57 | a | 57.60 | 70.24 | |||||||||
1951 | 51.95 | 55.29 | 59.05 | 66.18 | 74.11 | 79.82 | 89.44 | 85.68 | a | 81.57 | 71.92 | a | 59.37 | 51.84 | 68.85 | |||||||||||
1952 | 50.65 | 53.12 | 54.42 | g | 65.70 | 76.85 | 81.08 | 86.11 | 87.69 | 84.07 | 75.43 | b | 57.07 | 51.15 | 69.90 | a | ||||||||||
1953 | 54.77 | 53.16 | 61.27 | 65.36 | b | 69.27 | a | 83.23 | 89.42 | 87.65 | a | 83.37 | 71.10 | 61.40 | 49.34 | 69.11 | ||||||||||
1954 | 52.45 | 61.18 | 58.31 | 71.57 | 78.02 | 83.88 | 90.98 | b | 87.72 | a | 85.00 | 73.65 | 62.97 | 53.05 | 71.56 | |||||||||||
1955 | 48.27 | i | 50.68 | 60.45 | i | 65.18 | 73.73 | 81.38 | 85.06 | 86.60 | a | 83.03 | 75.66 | 59.35 | 55.69 | 71.64 | b | |||||||||
1956 | 56.06 | 51.41 | 62.00 | 67.10 | a | 77.55 | 87.75 | 89.75 | a | 87.81 | j | 85.70 | 71.26 | 57.88 | 52.76 | 69.02 | a | |||||||||
1957 | 54.45 | 61.86 | 61.53 | 67.16 | b | 72.58 | 86.43 | 91.21 | 89.02 | a | 83.18 | 69.97 | 56.08 | 54.89 | 70.70 | |||||||||||
1958 | 52.34 | 58.11 | 56.90 | 66.73 | 80.85 | 86.97 | 90.82 | 90.67 | a | 83.55 | 74.21 | 60.63 | 56.16 | 71.50 | ||||||||||||
1959 | 53.65 | 53.14 | 62.21 | 71.40 | 74.65 | a | 88.70 | 92.35 | 87.93 | a | 82.58 | k | 71.90 | 60.68 | 53.32 | 70.00 | a | |||||||||
1960 | 48.27 | 50.93 | 65.00 | 70.67 | 77.53 | 89.88 | 92.87 | 90.02 | 86.72 | 71.18 | 61.45 | b | 52.35 | 71.41 | ||||||||||||
1961 | 55.89 | 58.43 | 62.25 | a | 70.65 | 77.37 | a | 88.98 | 91.97 | 88.59 | b | 80.88 | 72.00 | 58.53 | 53.06 | 71.55 | ||||||||||
1962 | 52.35 | 57.18 | 56.85 | 72.40 | 73.29 | 81.88 | a | 88.73 | 89.73 | 83.45 | 72.74 | 63.50 | 55.39 | 70.62 | ||||||||||||
1963 | 49.23 | 60.71 | 60.19 | 64.83 | ----- | z | ----- | z | 91.13 | 86.42 | 85.30 | 74.06 | 60.70 | 53.18 | a | 68.58 | b | |||||||||
1964 | 48.55 | 50.53 | 57.18 | 66.23 | 75.10 | 83.52 | 90.76 | 86.66 | 81.28 | 75.15 | 55.82 | 51.87 | 68.55 | |||||||||||||
1965 | 53.13 | 53.00 | 57.21 | 64.83 | 72.77 | 78.92 | 90.19 | 88.63 | 79.65 | 74.85 | a | 63.07 | a | 53.05 | 69.11 | |||||||||||
1966 | 48.85 | 51.00 | 62.48 | 69.95 | 79.60 | 86.03 | 91.52 | 89.77 | 83.37 | 71.50 | 61.33 | 52.73 | a | 70.68 | ||||||||||||
1967 | 51.05 | 56.07 | 62.39 | 61.93 | 74.60 | 81.35 | 90.56 | 89.81 | 83.88 | 74.19 | 64.37 | 48.18 | 69.86 | |||||||||||||
1968 | 51.74 | 58.93 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 55.34 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 51.58 | 55.49 | 60.38 | 67.56 | 75.13 | 83.56 | 89.62 | 87.96 | 83.25 | 72.46 | 60.47 | 53.21 | 70.14 | |||||||||||||
S.D. | 3.06 | 3.47 | 2.96 | 2.83 | 2.85 | 2.86 | 1.75 | 1.57 | 1.86 | 2.45 | 2.88 | 2.29 | 1.17 | |||||||||||||
SKEW | -0.80 | -0.10 | 0.26 | -0.16 | -0.10 | 0.26 | -0.44 | -0.37 | -0.50 | -0.32 | -0.05 | 0.04 | 0.14 | |||||||||||||
MAX | 58.35 | 61.86 | 68.00 | 72.40 | 80.85 | 89.88 | 92.87 | 90.67 | 86.72 | 76.50 | 66.92 | 57.60 | 72.56 | |||||||||||||
MIN | 41.62 | 48.66 | 55.10 | 61.33 | 69.10 | 78.10 | 85.06 | 84.39 | 78.58 | 67.08 | 55.45 | 48.18 | 68.10 | |||||||||||||
YRS | 45 | 47 | 44 | 45 | 45 | 43 | 45 | 45 | 45 | 46 | 47 | 46 | 37 |