YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 87.35 | 89.50 | 77.00 | 61.21 | f | ----- | z | 84.62 | i | |||
1921 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 87.10 | 89.94 | 93.65 | 90.43 | 83.26 | 71.41 | a | 63.97 | 82.82 | e | ||||||
1922 | 54.13 | 60.11 | 69.03 | 73.90 | 85.93 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 65.24 | i | 61.29 | 67.40 | f | |||||
1923 | 63.71 | 54.18 | 62.77 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.22 | i | |||
1924 | 51.33 | a | ----- | z | ----- | z | ----- | z | ----- | z | 99.40 | 92.26 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 81.00 | i | ||
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 | 95.61 | 91.10 | 93.57 | 83.03 | 67.33 | 49.61 | 80.04 | f | ||||||
1932 | 53.81 | 65.52 | 63.81 | 80.13 | 82.65 | 93.20 | 96.42 | 94.23 | 81.47 | 71.74 | 65.87 | 49.03 | 74.82 | |||||||||||||
1933 | 58.03 | 55.75 | 71.87 | 75.10 | 85.68 | 94.70 | 96.68 | 94.57 | a | 90.87 | 83.65 | 71.31 | a | 68.74 | 78.91 | |||||||||||
1934 | 59.16 | 65.25 | 68.48 | 79.70 | 89.45 | 98.43 | 99.90 | 97.45 | b | 89.37 | 84.97 | 70.30 | 57.84 | 80.03 | ||||||||||||
1935 | 64.53 | a | 62.86 | 71.42 | 78.57 | 81.65 | 92.27 | 94.27 | a | 95.77 | 82.13 | 78.74 | 65.13 | 54.58 | 76.83 | |||||||||||
1936 | 56.52 | 60.34 | 70.84 | 71.57 | g | 88.19 | 95.93 | 95.77 | 97.07 | d | 88.27 | 76.97 | a | 67.73 | 67.42 | 78.64 | a | |||||||||
1937 | 56.03 | ----- | z | ----- | z | 81.20 | 89.10 | 95.70 | 97.77 | 96.74 | 92.40 | 80.03 | 66.63 | 59.65 | 81.53 | b | ||||||||||
1938 | 61.00 | a | 58.83 | j | ----- | z | ----- | z | ----- | z | ----- | z | 85.71 | x | 92.63 | a | 85.40 | 78.42 | e | 65.46 | b | 61.19 | 74.02 | f | ||
1939 | 59.00 | f | 59.04 | b | 72.23 | e | 80.00 | r | 87.55 | k | 95.93 | c | 92.64 | c | 89.70 | a | ----- | z | 76.84 | f | 58.77 | q | 61.95 | j | 81.91 | g |
1940 | 50.57 | c | 61.09 | f | 62.25 | s | 79.18 | s | 86.47 | p | 90.88 | d | 95.42 | g | 89.21 | g | ----- | z | 76.38 | o | ----- | z | ----- | z | 70.73 | j |
1941 | ----- | z | ----- | z | ----- | z | 73.48 | g | 81.16 | 88.43 | 91.10 | 91.80 | a | 84.60 | 76.90 | 70.10 | 61.94 | 80.75 | d | |||||||
1942 | 56.00 | 61.46 | 71.32 | 77.86 | a | 87.48 | 95.40 | 95.53 | a | 90.00 | 83.30 | 76.68 | 74.80 | 65.58 | 77.95 | |||||||||||
1943 | 63.32 | 69.18 | 73.06 | 84.40 | 86.55 | 93.20 | 92.81 | 98.39 | 87.93 | 79.29 | 67.24 | a | 54.42 | 79.15 | ||||||||||||
1944 | 57.84 | 62.86 | 72.19 | 78.20 | 88.32 | 95.73 | 96.87 | 95.16 | 84.53 | 78.48 | 66.00 | 55.84 | 77.67 | |||||||||||||
1945 | 59.87 | 69.46 | 73.84 | 78.43 | 92.40 | a | 96.73 | 93.77 | 96.29 | 91.70 | 76.26 | 73.97 | 59.87 | 80.22 | ||||||||||||
1946 | 56.00 | 67.93 | 74.71 | 84.63 | 85.71 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 73.80 | g | |||||
1947 | ----- | z | ----- | z | ----- | z | 78.04 | f | 90.71 | 98.37 | 98.87 | 93.55 | ----- | z | ----- | z | ----- | z | ----- | z | 95.37 | h | ||||
1948 | 53.72 | b | 60.21 | 66.77 | a | 86.14 | a | 90.54 | c | 96.55 | a | 96.34 | b | 97.30 | a | 90.87 | 78.83 | a | 69.27 | 64.77 | 79.28 | |||||
1949 | 46.81 | 64.14 | 74.74 | 76.31 | a | 87.72 | b | 94.10 | 91.63 | a | 93.90 | 86.20 | 75.28 | b | 73.61 | b | 60.00 | m | 78.59 | a | ||||||
1950 | 66.86 | b | 71.61 | 75.45 | 82.33 | 90.77 | 97.57 | 94.06 | 97.16 | 93.40 | 87.40 | a | 76.37 | c | 68.10 | b | 83.42 | |||||||||
1951 | 64.04 | d | 66.58 | d | 65.00 | 79.20 | 90.21 | b | 95.37 | 96.32 | 94.97 | 90.38 | a | 82.68 | 64.90 | 60.03 | 79.14 | |||||||||
1952 | 64.35 | 63.34 | 66.00 | 75.87 | 85.06 | 95.63 | 92.42 | 95.90 | 88.10 | 80.26 | 61.20 | 58.29 | 77.20 | |||||||||||||
1953 | 67.45 | 61.41 | a | 73.55 | 77.17 | 83.65 | 98.37 | 96.35 | 94.45 | 90.87 | 78.81 | 68.63 | 53.65 | 78.70 | ||||||||||||
1954 | 62.55 | 69.27 | b | 68.10 | 82.83 | 84.65 | 95.23 | 97.29 | 92.71 | 90.38 | a | 78.90 | 69.87 | 61.74 | 79.46 | |||||||||||
1955 | 54.06 | 60.29 | 71.90 | a | 79.77 | 85.71 | 92.10 | 91.23 | 92.52 | 89.70 | 79.52 | 67.86 | i | 61.87 | 78.06 | a | ||||||||||
1956 | 60.77 | a | 55.21 | 72.55 | 75.73 | 90.19 | 96.27 | 95.74 | 93.87 | 92.10 | 82.74 | 65.17 | 62.03 | 78.53 | ||||||||||||
1957 | 59.06 | 67.43 | 68.03 | 72.77 | 82.35 | 92.70 | 97.35 | 94.74 | 87.55 | a | 71.32 | 57.90 | 64.23 | 76.29 | ||||||||||||
1958 | 54.42 | 60.57 | 58.19 | 73.23 | 86.68 | 97.60 | 99.47 | a | 95.03 | 84.10 | a | 71.87 | 67.27 | 60.97 | 75.78 | |||||||||||
1959 | 60.06 | 60.46 | 69.77 | 76.47 | 87.17 | a | 96.57 | 95.12 | n | 98.10 | 94.88 | e | 80.59 | b | 65.85 | c | 57.94 | 77.08 | a | |||||||
1960 | 53.19 | 63.33 | q | 70.77 | r | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 53.19 | k | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 58.25 | 62.98 | 69.83 | 78.69 | 86.91 | 94.98 | 95.13 | 94.35 | 88.67 | 79.02 | 68.13 | 60.18 | 78.43 | |||||||||||||
S.D. | 5.12 | 4.64 | 4.23 | 3.67 | 3.06 | 2.93 | 2.68 | 2.65 | 3.63 | 3.91 | 4.17 | 5.14 | 1.99 | |||||||||||||
SKEW | -0.09 | -0.01 | -0.96 | 0.32 | -0.20 | -0.98 | -0.17 | -0.68 | -0.38 | -0.12 | -0.14 | -0.42 | 0.45 | |||||||||||||
MAX | 67.45 | 71.61 | 75.45 | 86.14 | 92.40 | 99.40 | 99.90 | 98.39 | 94.88 | 87.40 | 76.37 | 68.74 | 83.42 | |||||||||||||
MIN | 46.81 | 54.18 | 58.19 | 72.77 | 81.16 | 87.10 | 89.94 | 87.35 | 81.47 | 71.32 | 57.90 | 49.03 | 74.82 | |||||||||||||
YRS | 29 | 25 | 25 | 23 | 26 | 28 | 27 | 29 | 27 | 27 | 25 | 26 | 17 |