YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1916 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1917 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1918 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1921 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1933 | 40.38 | a | 42.46 | b | 51.81 | 53.80 | 61.58 | 71.65 | 76.08 | 74.34 | 71.25 | 61.27 | 51.60 | 48.81 | 58.75 | |||||||||||
1934 | 42.18 | 48.38 | 53.31 | 60.43 | 69.55 | 72.62 | 75.79 | 72.39 | 67.93 | 60.53 | 49.45 | 44.73 | 59.77 | |||||||||||||
1935 | 44.44 | 43.46 | 49.26 | 56.70 | 58.52 | 72.47 | 77.44 | 72.89 | 65.95 | 59.08 | a | 48.15 | 42.71 | 57.59 | ||||||||||||
1936 | 43.24 | 44.84 | 49.68 | 57.45 | 65.09 | b | 74.79 | a | 76.92 | 74.29 | 67.02 | 57.87 | a | 45.50 | 41.80 | a | 58.21 | |||||||||
1937 | 36.02 | 42.95 | 45.87 | 54.98 | 62.58 | 70.52 | 75.21 | 73.16 | 66.77 | 57.74 | 45.88 | 40.63 | a | 56.03 | ||||||||||||
1938 | 40.85 | 43.41 | a | 48.28 | a | 53.22 | 61.55 | 71.70 | 69.31 | 69.94 | 63.68 | 57.53 | 43.67 | a | 41.37 | a | 55.38 | |||||||||
1939 | 37.24 | 33.65 | a | 47.71 | 55.83 | 62.40 | 73.67 | 73.35 | 70.37 | a | 69.40 | 56.50 | 46.72 | a | 43.85 | 55.89 | ||||||||||
1940 | 38.13 | a | 40.55 | a | 48.48 | a | 52.84 | a | 62.19 | 68.07 | 74.39 | 70.94 | 65.89 | b | 55.00 | 43.33 | 43.19 | 55.25 | ||||||||
1941 | 38.90 | 42.29 | 45.66 | 50.73 | 62.85 | a | 70.02 | 74.76 | 72.05 | 66.87 | 57.00 | 50.13 | 43.26 | 56.21 | ||||||||||||
1942 | 43.81 | 40.89 | 46.45 | b | 52.43 | 61.47 | 74.03 | 76.18 | 71.29 | 67.78 | g | 57.16 | 52.73 | 45.63 | 56.55 | a | ||||||||||
1943 | 43.17 | a | 48.66 | 50.79 | 59.38 | 65.98 | 72.58 | 73.93 | a | 73.42 | 68.58 | 57.71 | 48.12 | 42.00 | c | 58.69 | ||||||||||
1944 | 37.70 | a | 42.74 | 45.95 | 52.37 | 61.48 | 70.37 | 73.15 | 73.90 | 66.27 | 60.11 | 46.28 | 40.52 | 55.90 | ||||||||||||
1945 | 40.12 | a | 44.55 | 45.29 | 52.88 | 61.98 | a | 68.90 | 74.85 | a | 73.48 | 69.48 | a | 59.77 | a | 51.42 | 42.69 | 57.12 | ||||||||
1946 | 36.31 | 42.09 | 48.35 | 59.52 | 61.76 | 75.05 | 74.42 | l | 74.06 | 69.95 | 57.00 | 43.98 | a | 45.27 | 55.76 | a | ||||||||||
1947 | 36.05 | 46.05 | 48.78 | b | 54.40 | 64.90 | 69.92 | 75.26 | 71.30 | a | 71.14 | w | 61.00 | 45.43 | 39.60 | 55.70 | a | |||||||||
1948 | 40.56 | 43.67 | 45.16 | 57.42 | 63.87 | 72.68 | 76.44 | 74.09 | d | 68.73 | 58.14 | b | 43.12 | 42.14 | j | 58.54 | a | |||||||||
1949 | 31.14 | b | 40.98 | c | 49.52 | a | 55.81 | a | 62.42 | 71.17 | c | ----- | z | 74.58 | 70.28 | 55.68 | 52.07 | 40.47 | 54.92 | a | ||||||
1950 | 42.61 | 45.47 | j | 53.58 | s | 59.17 | 61.11 | d | 72.72 | 71.76 | 71.76 | 66.79 | d | 64.74 | h | 52.28 | 48.34 | i | 62.27 | d | ||||||
1951 | 41.94 | m | 45.42 | i | ----- | z | 54.52 | i | 64.07 | j | 70.88 | b | 76.38 | a | 73.82 | f | 70.85 | 61.90 | 48.22 | a | 42.00 | q | 65.65 | g | ||
1952 | 44.40 | 42.41 | 41.98 | i | 54.40 | 65.85 | 75.27 | o | 75.77 | a | 74.35 | a | 70.03 | 61.85 | e | 44.90 | d | 41.39 | m | 59.33 | c | |||||
1953 | 45.33 | g | 42.11 | 49.52 | 55.75 | 59.22 | d | 74.32 | 75.02 | b | 73.43 | c | 69.82 | b | 59.12 | a | 49.35 | d | 39.25 | m | 60.76 | b | ||||
1954 | 44.70 | k | 47.96 | 49.66 | 60.03 | 64.71 | 72.75 | 75.74 | 70.69 | o | 72.84 | k | 61.75 | a | 51.15 | 42.96 | e | 58.52 | c | |||||||
1955 | 38.63 | l | 40.55 | 49.18 | 54.77 | 61.29 | 71.62 | 73.19 | 71.87 | p | 68.43 | a | 61.69 | e | 49.30 | 42.43 | x | 58.89 | c | |||||||
1956 | 44.80 | h | 39.64 | 50.30 | a | 53.52 | 65.76 | 76.31 | c | 74.84 | 72.24 | 71.54 | d | 63.02 | h | 45.15 | 43.71 | q | 61.03 | c | ||||||
1957 | 41.61 | m | 52.25 | 49.75 | i | 54.23 | b | 59.62 | b | 74.12 | 75.87 | 72.16 | 66.77 | 56.48 | 46.71 | i | 41.90 | k | 63.94 | d | ||||||
1958 | 38.74 | 47.17 | p | 43.15 | 54.10 | 66.88 | a | 75.35 | 75.95 | 73.66 | 67.07 | 56.79 | 48.18 | b | 46.02 | 58.72 | a | |||||||||
1959 | 44.00 | 44.12 | 48.35 | 57.43 | c | 61.68 | 74.67 | a | 74.94 | 71.15 | 67.95 | 59.98 | e | 46.67 | d | 41.55 | a | 57.71 | ||||||||
1960 | 35.42 | f | 39.83 | 51.81 | 55.86 | b | 63.02 | c | 75.75 | 73.73 | a | 73.39 | 70.10 | 58.31 | 50.33 | 39.61 | 59.25 | a | ||||||||
1961 | 41.87 | 43.39 | 49.02 | i | 57.32 | 63.06 | m | ----- | z | 77.52 | e | 73.31 | g | 67.65 | 59.40 | b | ----- | z | ----- | z | 57.86 | f | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 40.08 | 43.23 | 48.43 | 55.60 | 62.94 | 72.54 | 74.95 | 72.74 | 68.27 | 58.75 | 47.89 | 42.83 | 57.12 | |||||||||||||
S.D. | 3.44 | 3.57 | 2.43 | 2.58 | 2.49 | 2.15 | 1.77 | 1.36 | 1.93 | 2.04 | 2.97 | 2.37 | 1.46 | |||||||||||||
SKEW | -0.70 | 0.12 | -0.17 | 0.27 | 0.63 | -0.16 | -1.26 | -0.45 | -0.21 | 0.09 | 0.01 | 0.73 | 0.32 | |||||||||||||
MAX | 44.44 | 52.25 | 53.31 | 60.43 | 69.55 | 76.31 | 77.52 | 74.58 | 71.54 | 61.90 | 52.73 | 48.81 | 59.77 | |||||||||||||
MIN | 31.14 | 33.65 | 43.15 | 50.73 | 58.52 | 68.07 | 69.31 | 69.94 | 63.68 | 55.00 | 43.12 | 39.60 | 55.25 | |||||||||||||
YRS | 22 | 26 | 24 | 28 | 27 | 27 | 27 | 25 | 26 | 27 | 27 | 20 | 13 |