YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1906 | 24.00 | p | 22.00 | a | 24.74 | 40.33 | 48.68 | 56.38 | a | 59.94 | 57.97 | ----- | z | ----- | z | ----- | z | ----- | z | 44.29 | e | |||||
1907 | ----- | z | ----- | z | ----- | z | 33.22 | u | 44.77 | a | 54.69 | a | 63.58 | 64.26 | 54.67 | 41.52 | 27.87 | 20.13 | 46.43 | d | ||||||
1908 | 19.84 | 22.93 | 32.85 | d | 42.67 | 45.71 | 59.80 | 64.61 | c | 62.84 | 51.53 | 39.94 | 25.77 | 21.61 | 40.84 | |||||||||||
1909 | 23.58 | 25.57 | 28.87 | 37.45 | a | 46.90 | 60.90 | a | 66.23 | 63.61 | 53.70 | 41.53 | a | 35.37 | 16.20 | a | 41.66 | |||||||||
1910 | 23.17 | a | 17.58 | b | 32.55 | 42.23 | 43.43 | c | 57.59 | c | 61.93 | a | 63.00 | b | 56.59 | c | 42.19 | e | 28.38 | i | 19.46 | e | 41.79 | a | ||
1911 | 29.04 | d | 22.71 | d | 32.58 | e | 41.92 | f | 52.36 | f | 60.79 | f | 64.21 | c | 62.21 | b | 59.65 | d | 42.00 | b | 22.69 | d | 12.93 | d | 38.67 | c |
1912 | 16.84 | 21.54 | c | 25.10 | a | 37.76 | a | 49.34 | b | 54.89 | c | 63.11 | d | 62.40 | a | 51.44 | c | 39.19 | 24.50 | d | 16.21 | b | 38.53 | |||
1913 | 13.23 | 20.68 | 25.00 | l | 34.34 | a | 48.19 | 57.37 | 64.61 | 61.81 | 52.20 | t | 35.71 | n | 35.97 | a | 21.97 | a | 39.80 | c | ||||||
1914 | 26.65 | 16.68 | 22.40 | a | 36.39 | b | 47.75 | k | 60.56 | e | 62.18 | c | 58.07 | c | 55.22 | g | 38.62 | g | 31.17 | f | 21.65 | k | 40.42 | e | ||
1915 | 18.11 | c | 24.12 | k | 24.84 | l | 39.55 | s | ----- | z | 59.50 | l | 64.20 | k | 60.50 | s | 52.36 | b | 38.63 | d | 25.45 | a | 18.52 | 30.61 | g | |
1916 | 16.21 | g | 26.91 | g | 32.60 | k | 38.20 | o | 46.87 | h | 58.26 | g | 63.07 | d | 61.11 | l | 54.07 | o | 40.14 | i | 28.12 | f | 20.30 | d | 41.69 | j |
1917 | 23.23 | a | 19.07 | a | 26.42 | 39.73 | 44.57 | a | 48.40 | 64.69 | b | 63.68 | c | 52.64 | b | 39.94 | 28.73 | 16.56 | m | 41.01 | a | |||||
1918 | 12.30 | u | ----- | z | ----- | z | 37.13 | 49.33 | g | 62.59 | h | 65.11 | d | 65.12 | g | ----- | z | ----- | z | ----- | z | ----- | z | 51.12 | j | |
1919 | ----- | z | ----- | z | ----- | z | 43.07 | b | 50.06 | 55.10 | 63.10 | 61.03 | 57.53 | 42.39 | 27.43 | ----- | z | 49.96 | d | |||||||
1920 | 20.58 | 28.17 | 28.87 | 34.70 | 50.16 | 58.57 | 60.42 | 56.84 | 53.30 | 42.03 | 27.03 | 19.19 | 39.99 | |||||||||||||
1921 | 24.70 | a | 25.79 | 32.74 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 27.74 | i | ||
1922 | ----- | z | ----- | z | ----- | z | 40.67 | 49.42 | 60.00 | 62.26 | 64.55 | 55.47 | 34.61 | 25.56 | e | 20.48 | 45.89 | c | ||||||||
1923 | 24.35 | 22.11 | 31.39 | 42.03 | 51.65 | 63.10 | 63.52 | f | 60.38 | j | 52.75 | b | 42.34 | b | 27.72 | a | 20.35 | 37.78 | b | |||||||
1924 | 18.30 | a | 24.46 | a | 24.47 | a | 40.47 | 46.06 | 60.57 | 61.48 | 62.68 | 50.83 | a | 35.67 | y | 29.29 | b | 11.30 | d | 39.08 | a | |||||
1925 | 13.77 | 22.29 | 28.87 | a | 39.77 | 51.81 | 59.41 | a | 64.17 | a | 59.42 | 53.40 | 37.55 | 26.70 | 17.42 | 39.55 | ||||||||||
1926 | 17.23 | 27.22 | a | 25.79 | c | 36.90 | a | 46.72 | b | 55.87 | 59.48 | 56.40 | a | 54.83 | a | 39.61 | 22.59 | a | 19.94 | 38.55 | ||||||
1927 | 22.57 | a | 25.39 | 29.60 | a | 38.93 | a | 47.40 | a | 55.28 | a | 61.97 | 57.13 | 52.62 | a | 36.24 | b | 32.13 | 15.03 | a | 39.52 | |||||
1928 | 17.97 | a | 21.31 | c | 30.96 | e | 32.04 | g | 48.04 | f | 55.57 | g | 63.83 | b | 59.18 | i | 48.92 | d | 42.21 | c | 28.92 | d | 20.55 | 34.33 | d | |
1929 | 19.00 | b | 14.29 | 28.90 | 38.70 | 47.35 | 57.30 | 62.90 | b | 61.07 | a | 52.03 | ----- | z | 23.57 | 18.68 | 38.53 | a | ||||||||
1930 | 12.17 | a | 24.64 | 27.28 | f | 43.03 | 45.42 | 57.17 | 62.74 | 60.84 | 55.07 | c | 42.90 | a | 29.90 | a | 16.00 | 40.90 | a | |||||||
1931 | 19.00 | a | 28.14 | 27.40 | a | 39.11 | c | 44.08 | e | 57.77 | 62.03 | a | 59.55 | 56.46 | d | 43.13 | 28.70 | 22.61 | 40.67 | |||||||
1932 | 19.43 | a | 29.83 | 25.97 | a | 36.82 | b | 50.39 | 57.07 | 65.65 | 64.32 | 52.30 | 40.00 | a | 24.40 | 14.83 | a | 40.08 | ||||||||
1933 | 22.83 | a | 15.59 | a | 29.87 | 35.14 | a | 46.13 | 59.50 | 64.55 | 62.32 | 58.10 | a | 42.32 | 28.80 | 23.77 | 40.74 | |||||||||
1934 | 19.81 | 24.04 | 29.74 | 43.23 | 55.65 | 61.10 | a | 69.00 | 68.00 | 52.03 | 44.81 | 32.77 | 26.03 | a | 43.85 | |||||||||||
1935 | 27.93 | b | 26.07 | a | 35.39 | 41.79 | a | 47.70 | a | 58.60 | 66.03 | 63.97 | 53.63 | 42.77 | a | 28.60 | 22.77 | 42.94 | ||||||||
1936 | 18.81 | 19.82 | a | 30.58 | 37.80 | 54.00 | a | 60.17 | a | 63.26 | 61.23 | 55.73 | 39.87 | 25.38 | a | 24.36 | f | 42.42 | a | |||||||
1937 | 13.43 | a | 21.44 | a | 29.86 | b | 40.90 | a | 53.67 | a | 60.28 | e | 62.36 | c | 63.70 | a | 56.60 | 41.80 | a | 28.00 | a | 20.72 | f | 42.91 | a | |
1938 | 21.38 | g | 24.39 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 63.71 | j | 59.72 | e | ----- | z | 26.50 | 23.10 | a | 33.43 | h | |
1939 | 27.10 | a | 19.38 | b | 33.39 | 42.26 | c | 53.45 | b | 60.31 | a | 64.13 | 61.81 | 58.66 | a | 42.10 | 27.24 | a | 19.89 | d | 42.48 | |||||
1940 | 16.31 | b | 24.97 | 31.89 | d | 39.37 | c | 50.03 | 58.17 | 65.55 | 61.81 | 60.88 | f | 46.33 | a | 28.76 | a | 27.61 | 40.98 | a | ||||||
1941 | 26.06 | 29.43 | 32.90 | 43.97 | 54.40 | a | 59.43 | 63.19 | 62.27 | a | 56.53 | 46.81 | 32.03 | 28.07 | b | 44.59 | ||||||||||
1942 | 20.30 | a | 21.56 | a | 29.61 | 44.67 | 49.63 | d | 59.72 | a | 63.68 | 63.29 | 53.60 | 44.77 | 33.37 | 23.04 | h | 44.02 | a | |||||||
1943 | 20.95 | j | 26.29 | n | ----- | z | 47.62 | q | 48.93 | c | 61.83 | a | 63.83 | b | 65.77 | 51.89 | c | ----- | z | 22.36 | p | 14.81 | 51.18 | f | ||
1944 | 17.67 | v | 24.58 | e | 31.86 | c | 37.71 | b | 44.73 | a | 56.97 | 61.63 | a | 63.90 | b | ----- | z | 53.58 | s | 30.83 | 22.87 | 41.68 | c | |||
1945 | 20.72 | b | 25.25 | 32.65 | 34.75 | b | 47.10 | 56.63 | 62.84 | ----- | z | 52.33 | 42.81 | 28.63 | 17.61 | 38.30 | a | |||||||||
1946 | 20.32 | 23.71 | 32.26 | 48.27 | 48.90 | a | 62.40 | o | 64.77 | 64.55 | 58.03 | a | 44.06 | 28.32 | k | 25.55 | 43.04 | b | ||||||||
1947 | 21.96 | f | 22.21 | 27.84 | 38.90 | 49.16 | 56.83 | 60.75 | s | 63.46 | c | 54.41 | a | 45.55 | b | 22.17 | 20.28 | b | 40.08 | b | ||||||
1948 | 16.85 | d | 22.30 | b | 24.17 | a | 40.29 | b | 45.19 | d | 55.40 | 63.45 | b | 59.97 | b | 51.46 | q | 49.27 | p | ----- | z | ----- | z | 40.95 | d | |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 63.52 | f | 61.52 | h | 57.29 | w | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | 27.79 | q | 40.63 | 50.70 | a | 61.00 | 62.45 | 58.13 | 55.23 | 46.06 | 26.97 | a | 20.00 | b | 46.80 | c | ||||||
1951 | 19.50 | a | 22.59 | a | 31.10 | a | 38.97 | 51.16 | 58.72 | a | 68.25 | c | 65.23 | 54.39 | b | 43.00 | 27.40 | 23.71 | 42.00 | |||||||
1952 | 26.74 | 25.48 | 30.48 | d | 41.67 | 50.03 | a | 66.38 | a | 64.74 | 66.00 | b | 55.20 | 38.71 | 27.35 | d | 21.19 | 42.83 | ||||||||
1953 | 27.81 | 23.37 | a | 36.20 | a | 39.07 | 47.45 | 67.40 | 66.45 | 63.32 | 52.66 | a | 44.10 | a | 31.70 | 20.48 | 43.33 | |||||||||
1954 | 22.65 | 29.36 | 30.29 | 45.14 | b | 51.48 | 65.29 | f | 68.45 | 65.35 | 59.45 | a | 45.55 | 31.00 | a | 23.61 | 42.94 | a | ||||||||
1955 | 21.77 | 20.36 | 29.61 | 42.40 | 50.57 | a | 58.04 | b | 65.16 | 64.10 | 56.90 | a | 43.26 | 26.69 | a | 23.59 | b | 41.87 | ||||||||
1956 | 22.26 | 22.71 | a | 29.13 | 37.66 | a | 55.74 | 63.62 | a | 64.87 | 62.07 | a | 55.20 | 44.77 | 25.33 | 20.77 | a | 42.01 | ||||||||
1957 | 23.42 | 34.29 | 34.87 | a | 38.83 | 50.58 | 58.86 | a | 66.83 | b | 64.68 | 50.50 | 46.26 | 30.40 | 24.71 | 43.69 | ||||||||||
1958 | 22.58 | 28.00 | 29.74 | 40.53 | 54.94 | 61.89 | c | 64.65 | 63.52 | 58.23 | 43.68 | 29.93 | 19.94 | 43.14 | ||||||||||||
1959 | 16.70 | a | 26.32 | 28.52 | 39.43 | 53.13 | 62.33 | 63.26 | 65.06 | 53.70 | 40.35 | 25.66 | a | 25.48 | 41.66 | |||||||||||
1960 | 18.70 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 18.70 | k |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 20.82 | 23.55 | 29.82 | 39.90 | 49.26 | 58.89 | 63.89 | 62.38 | 54.56 | 42.14 | 28.09 | 20.45 | 41.57 | |||||||||||||
S.D. | 4.18 | 3.90 | 3.14 | 2.96 | 3.25 | 3.25 | 2.02 | 2.62 | 2.65 | 2.76 | 3.18 | 3.77 | 1.73 | |||||||||||||
SKEW | -0.01 | 0.06 | -0.30 | 0.31 | 0.21 | -0.11 | 0.36 | -0.57 | 0.24 | -0.53 | 0.40 | -0.23 | -0.17 | |||||||||||||
MAX | 29.04 | 34.29 | 36.20 | 48.27 | 55.74 | 67.40 | 69.00 | 68.00 | 59.72 | 46.81 | 35.97 | 28.07 | 44.59 | |||||||||||||
MIN | 12.17 | 14.29 | 22.40 | 34.34 | 43.43 | 48.40 | 59.48 | 56.40 | 48.92 | 34.61 | 22.17 | 11.30 | 38.53 | |||||||||||||
YRS | 43 | 45 | 42 | 45 | 45 | 44 | 48 | 45 | 44 | 41 | 44 | 43 | 22 |