YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1906 | 42.10 | p | 39.19 | a | 43.50 | a | 55.95 | 64.34 | 73.52 | a | 73.34 | 73.32 | ----- | z | ----- | z | ----- | z | ----- | z | 60.45 | e | ||||
1907 | ----- | z | ----- | z | ----- | z | 51.44 | u | 60.57 | a | 69.67 | a | 78.23 | 77.75 | a | 71.13 | 57.84 | 43.25 | 37.73 | 62.02 | d | |||||
1908 | 38.03 | 39.64 | 53.02 | d | 57.83 | 63.87 | a | 77.22 | a | 78.21 | c | 76.31 | 69.41 | a | 56.94 | 42.78 | 39.18 | 57.70 | ||||||||
1909 | 42.16 | 43.32 | 46.80 | u | 56.07 | a | 63.00 | 76.81 | a | 80.60 | 78.79 | 69.88 | 58.10 | a | 51.22 | 30.98 | a | 59.18 | a | |||||||
1910 | 41.04 | c | 38.21 | b | 54.56 | 60.03 | 63.02 | c | 76.90 | d | 80.00 | a | 77.36 | b | 72.81 | c | 61.42 | g | 48.57 | i | 36.90 | e | 60.08 | b | ||
1911 | 44.06 | d | 37.12 | d | 50.27 | e | 58.33 | f | 68.69 | g | 77.78 | g | 77.70 | c | 78.82 | c | 74.65 | d | 56.98 | b | 41.92 | d | 27.83 | d | 54.37 | c |
1912 | 34.06 | 36.10 | c | 41.17 | b | 53.95 | a | 65.83 | b | 70.76 | c | 79.15 | d | 76.82 | a | 66.50 | c | 58.37 | 45.17 | d | 34.28 | b | 55.18 | |||
1913 | 32.85 | 36.44 | a | 45.29 | l | 55.17 | a | 68.10 | b | 72.67 | 81.60 | 80.58 | 67.60 | t | 49.79 | n | 52.43 | b | 33.58 | a | 57.05 | c | ||||
1914 | 44.28 | a | 37.89 | 45.28 | a | 54.23 | b | 61.85 | k | 76.10 | f | 74.82 | c | 73.43 | c | 70.33 | g | 55.54 | g | 48.94 | f | 35.06 | m | 54.99 | f | |
1915 | 33.82 | c | 40.81 | l | 39.08 | l | 56.18 | s | ----- | z | 76.69 | l | 78.42 | k | 75.12 | s | 70.11 | b | 58.61 | d | 49.53 | a | 37.61 | 49.94 | g | |
1916 | 35.15 | g | 47.23 | g | 55.00 | k | 53.23 | o | 65.93 | i | 76.20 | g | 78.12 | e | 76.68 | l | 70.40 | o | 62.81 | j | 45.26 | g | 41.85 | d | 59.98 | j |
1917 | 42.93 | b | 42.72 | a | 49.38 | a | 57.24 | a | 63.53 | b | 71.95 | 80.97 | b | 80.70 | c | 73.25 | b | 63.29 | 53.78 | 44.50 | o | 61.80 | a | |||
1918 | 28.50 | v | ----- | z | ----- | z | 54.31 | a | 67.12 | g | 77.27 | h | 78.58 | e | 77.52 | h | ----- | z | ----- | z | ----- | z | ----- | z | 66.44 | j |
1919 | ----- | z | ----- | z | ----- | z | 55.26 | c | 63.63 | 68.73 | 75.79 | 77.27 | 72.47 | 58.82 | 47.57 | a | ----- | z | 64.94 | d | ||||||
1920 | 40.91 | b | 46.33 | 49.29 | 55.40 | 66.26 | 73.40 | 75.90 | 72.52 | a | 69.97 | 58.85 | a | 42.83 | 37.61 | 57.44 | ||||||||||
1921 | 39.75 | a | 41.96 | 49.71 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 43.81 | i | |
1922 | ----- | z | ----- | z | ----- | z | 55.65 | 64.52 | a | 73.12 | 76.58 | 77.75 | a | 67.84 | b | 55.08 | 45.25 | f | 39.90 | 63.80 | d | |||||
1923 | 42.57 | a | 35.23 | 41.78 | a | 54.22 | 65.94 | 75.57 | 79.04 | f | 73.69 | j | 67.89 | b | 53.90 | b | 42.77 | b | 33.05 | 51.29 | b | |||||
1924 | 34.42 | a | 41.75 | a | 39.03 | a | 56.00 | 61.40 | 77.90 | 76.27 | 78.02 | 68.03 | a | 60.25 | y | 48.12 | b | 28.15 | e | 55.37 | a | |||||
1925 | 32.05 | 43.57 | 49.81 | b | 58.90 | 67.26 | 75.69 | a | 79.40 | a | 72.32 | 68.28 | 51.26 | 43.72 | 35.98 | a | 56.52 | |||||||||
1926 | 32.82 | 46.31 | a | 41.79 | c | 51.61 | b | 61.76 | b | 72.15 | 74.21 | 75.93 | a | 70.50 | a | 58.83 | a | 43.63 | c | 33.39 | 55.24 | |||||
1927 | 40.66 | b | 37.96 | 44.17 | a | 56.05 | b | 68.50 | a | 71.91 | a | 77.11 | 72.44 | 69.05 | b | 58.59 | b | 50.21 | a | 32.36 | m | 58.79 | a | |||
1928 | 34.86 | b | 35.71 | c | 49.19 | e | 49.13 | g | 62.12 | g | 71.76 | g | 78.72 | b | 74.50 | i | 67.79 | d | 57.29 | c | 41.94 | d | 35.55 | 50.13 | d | |
1929 | 36.41 | c | 27.98 | 45.29 | 55.64 | a | 61.15 | 73.23 | 78.16 | b | 76.22 | a | 67.85 | ----- | z | 35.60 | 36.47 | 54.00 | a | |||||||
1930 | 26.42 | a | 46.21 | 43.94 | f | 60.97 | 62.66 | 73.25 | 77.27 | 76.26 | 72.00 | c | 55.32 | a | 44.69 | a | 33.85 | d | 57.17 | a | ||||||
1931 | 32.14 | b | 41.41 | a | 40.64 | c | 52.70 | e | 59.24 | j | 75.50 | 78.17 | b | 73.82 | 73.52 | i | 59.19 | 43.58 | 34.45 | a | 53.16 | b | ||||
1932 | 31.45 | c | 44.89 | a | 40.34 | c | 51.00 | c | 64.02 | 69.98 | 78.39 | 75.83 | a | 64.20 | 54.33 | a | 41.20 | 26.70 | c | 53.53 | ||||||
1933 | 38.68 | a | 33.22 | a | 47.47 | b | 51.19 | c | 61.89 | 74.08 | 80.05 | 75.94 | 73.10 | a | 60.05 | 46.67 | 44.95 | a | 57.27 | |||||||
1934 | 38.11 | 41.48 | 48.42 | a | 59.03 | a | 70.76 | 77.81 | a | 83.76 | 81.03 | 68.44 | c | 62.35 | 48.03 | 41.43 | a | 60.06 | ||||||||
1935 | 41.76 | b | 42.32 | c | 52.11 | 59.09 | a | 61.76 | b | 74.82 | 80.68 | 77.89 | 67.66 | b | 59.26 | b | 44.37 | 36.11 | 58.15 | |||||||
1936 | 32.85 | 37.27 | a | 49.13 | 55.93 | 67.02 | a | 76.33 | a | 78.97 | 78.35 | 68.75 | 55.77 | 43.36 | a | 39.08 | f | 58.52 | a | |||||||
1937 | 29.35 | a | 39.48 | b | 42.69 | d | 57.64 | a | 67.28 | a | 74.08 | f | 78.75 | c | 79.53 | a | 71.12 | 58.72 | a | 45.53 | a | 36.26 | f | 57.01 | b | |
1938 | 39.33 | g | 40.00 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 80.24 | j | 73.08 | e | ----- | z | 43.98 | 39.35 | a | 49.10 | h | |
1939 | 40.73 | a | 33.96 | b | 50.60 | 58.74 | c | 67.55 | b | 76.59 | a | 79.37 | 77.27 | a | 74.38 | a | 59.26 | 43.67 | c | 37.89 | d | 58.33 | ||||
1940 | 28.57 | c | 40.78 | 49.63 | d | 57.09 | c | 66.76 | 73.97 | 81.84 | 76.40 | a | 75.72 | g | 63.28 | a | 43.32 | b | 41.57 | a | 56.65 | a | ||||
1941 | 39.18 | 42.93 | 45.47 | 56.27 | 66.41 | b | 71.88 | a | 75.79 | 76.83 | a | 70.30 | 59.03 | a | 48.78 | a | 41.53 | b | 57.87 | |||||||
1942 | 37.30 | a | 37.89 | a | 46.00 | 57.95 | 66.17 | d | 74.05 | a | 79.06 | 76.82 | 68.38 | 58.05 | 52.67 | 41.80 | i | 59.49 | a | |||||||
1943 | 38.92 | k | 45.68 | n | ----- | z | 67.08 | r | 67.54 | e | 77.45 | a | 80.43 | c | 82.82 | a | 72.25 | d | ----- | z | 41.32 | s | 30.86 | b | 68.56 | f |
1944 | 30.22 | v | 43.32 | g | 49.60 | e | 57.16 | b | 65.38 | b | 75.80 | c | 78.53 | b | 80.36 | b | ----- | z | 64.88 | s | 49.66 | b | 39.17 | a | 61.96 | d |
1945 | 40.57 | c | 45.59 | a | 54.79 | 58.86 | l | 70.45 | c | 76.84 | a | 79.92 | a | ----- | z | 74.52 | c | 63.15 | g | 52.04 | b | 40.97 | b | 59.52 | c | |
1946 | 40.98 | 47.27 | b | 55.69 | g | 68.38 | d | 67.88 | e | 79.97 | o | 82.34 | c | 80.26 | 74.19 | a | ----- | z | 43.58 | k | ----- | z | 65.90 | e | ||
1947 | 40.78 | f | 41.15 | a | 48.14 | c | 57.05 | 66.82 | 76.07 | 79.27 | t | 79.14 | c | 74.83 | a | 65.15 | d | 42.14 | a | 37.88 | b | 58.84 | b | |||
1948 | 35.46 | f | 37.21 | c | 41.19 | e | 61.87 | c | 65.36 | f | 74.83 | a | 81.32 | c | 78.11 | c | 70.73 | q | 66.23 | p | ----- | z | ----- | z | 62.42 | f |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 79.16 | f | 78.41 | h | 74.57 | w | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | 50.82 | q | 60.09 | b | 68.27 | a | 77.95 | 76.61 | 75.32 | 68.70 | 64.76 | 46.76 | a | 39.38 | b | 64.20 | c | |||||
1951 | 35.47 | b | 41.48 | a | 47.93 | a | 56.73 | 67.29 | 75.18 | b | 83.52 | c | 81.66 | 73.11 | b | 60.44 | 43.80 | 40.02 | 58.89 | |||||||
1952 | 42.24 | 43.19 | 45.71 | e | 58.22 | 67.15 | a | 82.24 | a | 80.65 | 82.25 | e | 69.40 | 55.23 | 41.38 | e | 35.73 | 58.61 | ||||||||
1953 | 45.47 | 40.20 | a | 53.05 | a | 56.50 | 65.29 | 83.88 | 81.98 | 77.92 | 71.38 | a | 59.93 | a | 48.22 | 35.89 | 59.98 | |||||||||
1954 | 39.94 | 49.34 | 48.16 | 64.07 | b | 65.92 | 81.83 | g | 84.18 | 80.15 | 74.59 | a | 60.74 | 49.14 | a | 41.44 | 59.79 | a | ||||||||
1955 | 37.31 | 38.75 | 49.24 | 59.00 | 66.00 | a | 74.82 | b | 79.05 | 79.68 | 72.53 | a | 61.06 | 46.07 | a | 41.96 | c | 58.79 | ||||||||
1956 | 40.45 | 39.04 | a | 49.74 | 57.03 | a | 72.97 | 79.95 | a | 80.13 | 78.20 | a | 74.28 | 62.34 | 44.07 | 39.80 | a | 59.83 | ||||||||
1957 | 39.77 | 50.21 | 49.93 | a | 54.97 | 64.74 | 75.93 | a | 82.64 | b | 78.61 | 68.30 | 58.18 | 42.40 | 42.66 | 59.03 | ||||||||||
1958 | 36.63 | 42.80 | a | 41.66 | 55.23 | 69.05 | 77.96 | c | 79.16 | 78.45 | 71.03 | 57.81 | 47.80 | 38.97 | 58.05 | |||||||||||
1959 | 33.67 | a | 42.11 | 48.08 | 56.72 | 68.48 | 77.32 | 77.73 | 78.60 | 70.87 | 56.39 | 43.96 | c | 37.92 | 57.65 | |||||||||||
1960 | 33.22 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 33.22 | k |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 37.38 | 40.63 | 47.17 | 56.91 | 65.77 | 75.14 | 79.04 | 77.64 | 70.67 | 58.67 | 45.67 | 37.09 | 57.80 | |||||||||||||
S.D. | 4.62 | 4.37 | 4.13 | 3.18 | 2.76 | 3.10 | 2.43 | 2.56 | 2.61 | 2.95 | 3.77 | 4.20 | 1.71 | |||||||||||||
SKEW | -0.36 | -0.19 | -0.24 | 1.05 | 0.13 | 0.38 | -0.04 | -0.28 | -0.10 | 0.06 | 0.19 | -0.66 | -0.91 | |||||||||||||
MAX | 45.47 | 50.21 | 54.79 | 68.38 | 72.97 | 83.88 | 84.18 | 82.82 | 74.83 | 65.15 | 53.78 | 44.95 | 60.06 | |||||||||||||
MIN | 26.42 | 27.98 | 39.03 | 51.00 | 60.57 | 68.73 | 73.34 | 72.32 | 64.20 | 51.26 | 35.60 | 26.70 | 53.53 | |||||||||||||
YRS | 42 | 44 | 40 | 44 | 43 | 42 | 48 | 45 | 43 | 38 | 43 | 41 | 19 |