YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1914 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 67.43 | d | 70.50 | g | 64.34 | a | 50.42 | 43.50 | 27.60 | 50.66 | g | |||
1915 | 24.38 | c | 32.36 | 38.06 | 48.08 | 52.26 | h | 64.87 | 68.88 | f | 69.00 | 62.28 | 53.97 | 40.88 | 32.81 | 46.67 | b | |||||||||
1916 | 33.40 | 38.41 | 46.60 | 50.27 | 57.53 | a | 69.40 | 70.40 | 68.29 | j | 61.18 | 46.56 | e | 39.40 | 29.60 | f | 51.32 | b | ||||||||
1917 | 26.08 | 31.11 | 36.62 | b | 47.05 | 49.90 | 70.89 | h | 74.18 | 70.60 | e | 66.30 | h | 55.52 | d | 45.06 | e | 38.97 | 47.51 | b | ||||||
1918 | 29.35 | 36.48 | 43.06 | 48.29 | f | 55.54 | d | 66.50 | 70.97 | a | 70.33 | e | 63.93 | 53.77 | 37.71 | b | 28.21 | g | 52.77 | b | ||||||
1919 | 23.23 | i | 30.11 | 38.76 | 49.05 | a | 57.91 | c | 61.47 | a | 64.60 | 72.19 | 59.73 | s | 49.03 | a | 42.04 | b | 35.02 | 50.02 | b | |||||
1920 | 32.26 | 37.15 | c | 38.48 | d | 43.17 | c | 57.37 | ----- | z | ----- | z | ----- | z | ----- | z | 39.15 | r | 35.88 | e | 27.36 | j | 40.72 | f | ||
1921 | 29.77 | g | 31.30 | f | 40.63 | d | 41.72 | e | 54.05 | c | 61.48 | c | 64.43 | a | 62.02 | c | 61.04 | e | ----- | z | ----- | z | ----- | z | 55.05 | e |
1922 | 25.55 | c | 33.53 | j | ----- | z | ----- | z | 67.88 | w | 70.77 | 75.70 | p | 71.19 | d | 66.05 | j | 54.68 | a | 37.55 | 35.18 | 49.15 | f | |||
1923 | 33.79 | s | ----- | z | 37.52 | 40.60 | 55.21 | 62.35 | 71.11 | 66.31 | 60.93 | 55.00 | s | 39.59 | c | 29.89 | h | 54.20 | d | |||||||
1924 | 23.83 | g | 33.07 | n | 34.74 | 41.60 | d | 57.30 | f | 66.10 | t | 68.08 | g | 68.00 | o | 58.89 | u | 48.48 | e | 37.39 | h | 27.68 | q | 41.61 | i | |
1925 | 23.27 | e | 36.68 | q | ----- | z | ----- | z | ----- | z | 69.90 | i | 71.98 | 67.43 | c | 62.22 | c | 52.63 | e | 39.94 | e | 32.26 | b | 49.96 | e | |
1926 | 28.33 | a | 38.33 | a | 42.69 | b | 49.19 | d | 55.83 | d | 70.36 | l | 73.12 | a | 75.59 | c | 69.98 | b | 59.13 | e | 44.24 | g | 25.54 | s | 54.69 | c |
1927 | 37.05 | t | 40.54 | a | 42.03 | 51.35 | c | 61.29 | b | 67.17 | a | 71.80 | d | 67.93 | h | 61.75 | d | 53.59 | c | 44.59 | g | 28.36 | c | 53.10 | c | |
1928 | 34.57 | c | 34.33 | e | 45.09 | b | 49.29 | a | 59.79 | c | 68.90 | 73.59 | d | 69.65 | e | 65.44 | c | ----- | z | 41.28 | 34.55 | 52.41 | a | |||
1929 | ----- | z | ----- | z | 40.55 | k | 49.40 | 59.62 | b | 70.93 | c | 71.78 | a | 69.40 | a | 62.89 | b | 52.82 | c | 34.11 | c | 31.60 | a | 55.84 | c | |
1930 | 23.83 | h | 40.94 | d | 42.19 | 54.67 | 55.92 | a | 72.91 | g | 70.90 | 70.20 | a | 64.07 | 53.00 | b | 37.67 | a | ----- | z | 54.40 | c | ||||
1931 | 29.29 | 36.73 | 39.77 | 50.93 | 57.27 | 69.60 | 74.10 | a | ----- | z | 70.90 | 54.32 | a | 37.40 | a | 27.78 | f | 52.03 | b | |||||||
1932 | 24.24 | b | 37.94 | b | 41.90 | a | 50.60 | 58.17 | b | 66.65 | 73.27 | e | 72.33 | a | 61.95 | k | 49.29 | e | 43.05 | 24.39 | c | 49.26 | a | |||
1933 | 26.23 | 27.18 | c | 42.61 | 43.97 | 53.58 | 68.92 | 72.56 | 70.61 | 68.30 | 56.42 | 44.93 | 37.54 | d | 51.07 | |||||||||||
1934 | 33.60 | a | 42.46 | b | 47.10 | b | 53.07 | b | 64.16 | 67.58 | e | 75.50 | b | 71.47 | a | 64.35 | 56.39 | 46.07 | o | 34.97 | 55.51 | a | ||||
1935 | 35.15 | a | 35.46 | 39.28 | a | 47.67 | 53.00 | 70.67 | 74.58 | 71.85 | 63.80 | e | 55.29 | b | 39.57 | 33.95 | a | 51.69 | ||||||||
1936 | 32.75 | a | 37.33 | f | 43.94 | 53.52 | 61.72 | f | 72.28 | 73.55 | 70.81 | 61.68 | 54.15 | 40.85 | 34.08 | 53.76 | b | |||||||||
1937 | 21.33 | b | 33.71 | b | 38.71 | g | 47.85 | 60.43 | c | 66.43 | 70.47 | a | 71.23 | 66.17 | 54.94 | 44.32 | 35.66 | 52.05 | a | |||||||
1938 | 33.29 | 35.45 | 40.03 | 48.80 | 55.16 | 67.48 | 70.03 | 69.90 | 62.38 | 53.89 | 35.21 | d | 34.88 | b | 50.54 | |||||||||||
1939 | 30.83 | a | 24.96 | a | 41.05 | 49.82 | 57.63 | 65.72 | 70.97 | a | 69.90 | 63.80 | 50.89 | 41.75 | 36.97 | 50.36 | ||||||||||
1940 | 31.34 | b | 34.48 | 42.98 | 48.68 | 59.60 | b | 68.22 | 71.68 | 68.87 | 61.92 | 52.90 | 38.03 | 35.15 | 51.16 | |||||||||||
1941 | 31.26 | 37.71 | 40.95 | 42.68 | 57.65 | 62.57 | 68.42 | 68.35 | 60.40 | 49.52 | 41.00 | 33.79 | b | 49.53 | ||||||||||||
1942 | 31.65 | 30.89 | 36.71 | 49.93 | 58.34 | 69.45 | 74.05 | 70.87 | 63.73 | 52.69 | 44.65 | 36.97 | 51.66 | |||||||||||||
1943 | 34.74 | 39.77 | b | 42.39 | 55.90 | 59.48 | 67.67 | 73.32 | 70.10 | 64.32 | 52.79 | 41.62 | 30.94 | 52.75 | ||||||||||||
1944 | 27.84 | 34.79 | 37.81 | 45.90 | 56.89 | 65.13 | 71.27 | 70.81 | 63.67 | 54.45 | 37.50 | 32.76 | 49.90 | |||||||||||||
1945 | 32.26 | 37.91 | 38.98 | 46.07 | 59.81 | 64.45 | 70.98 | 71.24 | 65.34 | a | 53.53 | 41.00 | 28.81 | 50.87 | ||||||||||||
1946 | 27.34 | b | 36.15 | b | 43.71 | c | 55.57 | 56.70 | a | 71.45 | 71.13 | 67.76 | 63.67 | 49.95 | 36.78 | 38.58 | 51.57 | |||||||||
1947 | 26.73 | 39.16 | 43.13 | 48.17 | 60.31 | 64.87 | 73.74 | 67.39 | 65.37 | 54.15 | 34.95 | 30.65 | 50.72 | |||||||||||||
1948 | 31.27 | a | 33.29 | a | 34.27 | 51.73 | 59.15 | 65.45 | 72.53 | 70.26 | ----- | z | 53.28 | f | 35.19 | a | 35.40 | 48.85 | b | |||||||
1949 | 24.74 | 30.28 | a | 42.19 | 50.90 | a | 55.26 | l | 69.54 | r | 70.66 | 69.97 | 66.22 | 50.40 | b | 47.60 | 31.47 | 48.44 | b | |||||||
1950 | 33.93 | a | 40.18 | 43.00 | a | 53.02 | 58.05 | 68.47 | 70.55 | 69.61 | 61.27 | 61.53 | 45.60 | 40.86 | b | 53.84 | ||||||||||
1951 | 34.48 | 35.75 | 41.92 | 49.37 | 59.94 | 65.25 | 72.08 | ----- | z | 67.40 | j | 52.55 | 37.17 | 30.48 | 47.90 | b | ||||||||||
1952 | 32.13 | 32.71 | 35.97 | a | 47.95 | a | 59.67 | m | 69.07 | i | 69.44 | ----- | z | 62.55 | j | 58.82 | c | 42.83 | u | 29.85 | 43.84 | e | ||||
1953 | 37.23 | 33.45 | 42.88 | a | 49.53 | 53.65 | 70.43 | b | 73.81 | b | 69.82 | l | 67.78 | 54.12 | a | 43.28 | a | 29.12 | e | 50.48 | a | |||||
1954 | ----- | z | 43.58 | b | 42.06 | f | 56.65 | c | 62.48 | d | 67.36 | h | ----- | z | 70.71 | e | 65.20 | b | 56.00 | a | 46.05 | k | 28.06 | w | 59.10 | f |
1955 | 29.55 | k | 29.61 | n | 42.67 | d | 47.12 | e | 55.81 | m | 66.38 | f | 71.36 | j | ----- | z | ----- | z | ----- | z | ----- | z | 35.16 | f | 44.89 | j |
1956 | 37.90 | e | 25.59 | l | 44.38 | o | 44.00 | u | 57.25 | y | ----- | z | 70.42 | y | 69.54 | g | 66.91 | s | 51.96 | q | 33.02 | j | 31.85 | g | 37.90 | k |
1957 | 33.83 | b | 41.46 | b | 40.22 | f | 47.10 | d | 53.20 | h | 69.37 | 70.64 | b | 68.43 | d | 64.44 | d | 52.36 | c | 32.89 | l | 32.88 | r | 55.95 | d | |
1958 | 30.70 | a | 38.44 | b | 36.06 | 47.15 | 63.35 | 72.26 | c | 75.00 | b | 71.72 | d | 63.31 | d | 52.50 | c | 40.07 | 38.47 | 52.42 | ||||||
1959 | 32.20 | a | 33.61 | j | 39.42 | f | 50.45 | 59.79 | c | 71.27 | b | 74.62 | c | 68.91 | c | 64.98 | 52.18 | 40.15 | g | 32.61 | 56.33 | c | ||||
1960 | 26.34 | b | 28.67 | 43.56 | 50.40 | 57.55 | a | 71.31 | a | 74.52 | b | 73.30 | a | 66.93 | 50.30 | c | 41.70 | 27.02 | d | 50.97 | ||||||
1961 | 28.21 | e | 36.23 | 41.63 | a | 49.32 | 59.91 | d | 69.67 | l | 73.50 | a | 69.00 | l | 59.50 | y | 53.39 | m | 36.07 | h | 26.75 | k | 48.13 | f | ||
1962 | 27.91 | b | 36.84 | c | 35.88 | a | 53.37 | 57.71 | e | 67.21 | b | 71.95 | 72.65 | 63.98 | d | 53.34 | 43.38 | f | 32.69 | d | 52.14 | a | ||||
1963 | 23.17 | a | 35.92 | c | 40.66 | 50.85 | d | 63.76 | 67.13 | k | 74.88 | a | 68.44 | 65.79 | a | 56.98 | b | 41.84 | a | 28.41 | i | 52.23 | b | |||
1964 | 26.76 | d | 27.74 | 36.89 | h | 45.41 | a | 59.19 | m | 67.73 | 73.29 | b | 68.42 | 62.53 | 55.84 | b | 36.65 | c | 30.50 | o | 51.60 | c | ||||
1965 | 32.71 | c | 31.73 | 37.04 | c | 48.42 | 54.55 | 63.77 | 70.53 | 68.60 | 60.60 | 54.06 | d | 44.13 | c | 33.53 | a | 49.97 | ||||||||
1966 | 27.90 | a | 28.63 | a | 41.70 | a | 50.40 | e | 62.38 | a | 68.32 | b | 74.18 | a | 70.50 | h | 63.64 | h | 52.77 | e | 45.36 | a | 29.63 | h | 50.18 | c |
1967 | 27.00 | f | 37.07 | ----- | z | ----- | z | ----- | z | 68.31 | q | 72.31 | 68.73 | c | 63.26 | c | 57.29 | c | ----- | z | 27.28 | b | 54.32 | f | ||
1968 | 29.81 | b | ----- | z | 42.42 | a | 45.25 | b | 57.27 | ----- | z | ----- | z | 66.23 | i | 63.15 | 54.67 | e | 40.89 | k | 29.22 | a | 45.97 | e | ||
1969 | 36.36 | b | 32.33 | a | 36.76 | 51.87 | 60.98 | b | 66.63 | g | 72.21 | 73.24 | 64.87 | 48.81 | e | 43.05 | t | ----- | z | 53.05 | c | |||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 30.10 | 35.20 | 40.61 | 49.02 | 58.11 | 67.53 | 71.93 | 70.01 | 64.05 | 53.41 | 40.40 | 33.01 | 51.19 | |||||||||||||
S.D. | 4.06 | 4.30 | 3.10 | 3.62 | 3.04 | 2.96 | 2.37 | 2.21 | 2.36 | 2.92 | 3.43 | 3.75 | 1.13 | |||||||||||||
SKEW | -0.17 | -0.32 | -0.21 | -0.23 | -0.22 | -0.34 | -1.23 | -0.75 | 0.86 | 0.17 | 0.04 | -0.12 | 0.73 | |||||||||||||
MAX | 37.90 | 43.58 | 47.10 | 56.65 | 64.16 | 72.28 | 75.50 | 75.59 | 70.90 | 61.53 | 47.60 | 40.86 | 53.84 | |||||||||||||
MIN | 21.33 | 24.96 | 34.27 | 40.60 | 49.90 | 61.47 | 64.43 | 62.02 | 60.40 | 46.56 | 34.11 | 24.39 | 49.53 | |||||||||||||
YRS | 45 | 44 | 45 | 50 | 43 | 39 | 48 | 42 | 43 | 48 | 40 | 38 | 16 |