YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1906 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1907 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1908 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1909 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1910 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1911 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1912 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1913 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1914 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1915 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 61.76 | e | 59.41 | b | 50.57 | 45.07 | c | 54.20 | h | |
1919 | 47.30 | a | 44.62 | b | 47.27 | e | 51.20 | e | 55.66 | b | 56.18 | b | 60.36 | c | 59.62 | b | 57.96 | e | 53.05 | i | 48.74 | c | 46.91 | i | 52.89 | b |
1920 | 49.06 | 51.24 | 46.19 | 48.07 | 54.06 | 57.60 | 60.20 | a | 60.17 | b | 59.64 | b | 55.61 | h | 51.26 | g | 47.77 | a | 53.40 | b | ||||||
1921 | 45.90 | a | 47.11 | 51.10 | 48.90 | 54.29 | 58.67 | 63.58 | 61.52 | h | 59.82 | h | 62.43 | a | 59.14 | h | 59.63 | a | 54.62 | c | ||||||
1922 | ----- | z | ----- | z | ----- | z | 47.13 | 52.19 | 56.59 | a | 59.74 | 61.16 | 60.60 | 53.87 | a | 48.87 | 49.48 | 54.40 | c | |||||||
1923 | 46.77 | 45.26 | a | 47.42 | 50.34 | a | 53.74 | 54.50 | 58.77 | 60.19 | 59.13 | 54.65 | 54.59 | a | 48.26 | 52.80 | ||||||||||
1924 | 45.32 | 49.14 | 46.10 | 51.55 | a | 55.52 | 57.17 | 58.81 | 58.94 | 56.37 | 51.42 | 50.17 | 45.63 | a | 52.18 | |||||||||||
1925 | 45.06 | 47.86 | 47.74 | 50.07 | 55.10 | 57.93 | 61.55 | 58.87 | 57.03 | 55.10 | 52.23 | 51.74 | 53.36 | |||||||||||||
1926 | 47.13 | 50.46 | 53.03 | 55.63 | 55.87 | 59.23 | 60.68 | 62.03 | 57.37 | 56.19 | 53.30 | 46.39 | 54.78 | |||||||||||||
1927 | 45.68 | 48.61 | 47.13 | 49.17 | a | 52.45 | 56.07 | 59.00 | 59.73 | a | 57.63 | 55.58 | 53.55 | a | 46.90 | 52.63 | ||||||||||
1928 | 47.80 | a | 47.64 | a | 50.29 | 49.60 | 56.13 | 57.27 | 59.19 | 60.10 | 57.43 | 52.70 | a | 51.30 | 46.81 | 53.02 | ||||||||||
1929 | 44.35 | 43.54 | 46.03 | a | 48.27 | 54.10 | a | 57.14 | a | 61.13 | 62.39 | 59.70 | 57.52 | 51.93 | 51.68 | 53.15 | ||||||||||
1930 | 47.23 | 49.89 | 49.65 | 53.27 | 51.77 | 58.10 | 60.61 | 63.42 | s | 60.70 | 57.16 | 53.62 | a | 47.87 | a | 53.62 | a | |||||||||
1931 | 48.58 | 51.22 | a | 52.65 | 55.37 | c | 60.06 | 61.20 | 68.32 | 66.70 | a | 60.64 | e | 56.84 | 49.04 | b | 45.52 | 56.34 | ||||||||
1932 | 43.19 | 46.55 | 51.03 | 50.33 | 55.42 | 57.52 | a | 60.26 | 60.10 | a | 60.10 | 56.81 | 53.90 | 44.90 | a | 53.34 | ||||||||||
1933 | 43.48 | 44.39 | 47.81 | 49.83 | a | 49.90 | 55.43 | b | 59.65 | 60.29 | 55.90 | 56.48 | 51.28 | a | 46.31 | b | 51.73 | |||||||||
1934 | 47.03 | 50.04 | 52.40 | a | 53.97 | 57.42 | 57.80 | 61.42 | 61.35 | 60.33 | 55.55 | b | 52.21 | a | 49.83 | a | 54.95 | |||||||||
1935 | 45.19 | 49.04 | 45.39 | 50.80 | 52.81 | 57.52 | a | 59.35 | 62.61 | 59.50 | 55.74 | 48.23 | 47.45 | 52.80 | ||||||||||||
1936 | 47.23 | 47.21 | 49.16 | 49.90 | 55.16 | 58.10 | 63.61 | 62.97 | a | 59.70 | 56.71 | 51.20 | 47.48 | 54.04 | ||||||||||||
1937 | 38.32 | 44.75 | 47.13 | a | 50.40 | 55.19 | 58.00 | 61.48 | 61.55 | 60.87 | 55.81 | 50.90 | a | 49.61 | 52.83 | |||||||||||
1938 | 48.35 | 47.64 | 48.48 | 51.00 | a | 53.06 | 57.10 | 59.35 | 62.55 | 61.37 | 54.43 | a | 48.79 | a | 50.16 | 53.53 | ||||||||||
1939 | 46.97 | 42.96 | 47.62 | b | 52.67 | 53.74 | 56.70 | 60.97 | 62.55 | 63.10 | 57.84 | 54.87 | 50.48 | 54.21 | ||||||||||||
1940 | 50.74 | 50.50 | a | 52.13 | 53.60 | 56.87 | 57.64 | b | 57.48 | d | 60.71 | 59.77 | 57.06 | 51.83 | 51.33 | a | 54.97 | |||||||||
1941 | 49.16 | 52.11 | 52.42 | 51.67 | 57.61 | 57.43 | 59.58 | 60.77 | 58.83 | 56.23 | 53.30 | 49.48 | 54.88 | |||||||||||||
1942 | 46.03 | 42.50 | 45.58 | 49.40 | 48.68 | 57.73 | 61.61 | 62.83 | a | 60.77 | 59.58 | 52.90 | 50.03 | 53.14 | ||||||||||||
1943 | 49.13 | 51.54 | 53.26 | 53.00 | 56.58 | 58.87 | 61.61 | 62.71 | 59.47 | 56.39 | 52.47 | 51.81 | 55.57 | |||||||||||||
1944 | 48.48 | 46.52 | 50.37 | a | 52.43 | 56.65 | 57.87 | 60.42 | 60.84 | 60.43 | 57.03 | 54.77 | 52.00 | 54.82 | ||||||||||||
1945 | 48.23 | 50.50 | 48.90 | a | 50.07 | 53.13 | 57.77 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 51.43 | f | |||||
1946 | 45.33 | a | 43.39 | 49.97 | a | 52.90 | 55.87 | 58.27 | 61.55 | 62.23 | 62.17 | 55.48 | 51.60 | 50.65 | 54.12 | |||||||||||
1947 | 45.39 | 50.50 | 53.00 | 54.70 | 57.77 | 60.30 | 61.23 | 62.97 | 62.50 | 57.90 | 50.07 | 48.58 | 55.41 | |||||||||||||
1948 | 48.03 | a | 47.10 | 47.87 | 52.97 | 54.58 | 58.13 | 59.77 | 60.23 | 59.60 | 57.58 | 51.53 | 46.74 | 53.68 | ||||||||||||
1949 | 42.06 | 45.46 | 48.45 | 52.33 | 55.94 | 59.83 | 61.16 | 61.71 | 60.23 | 55.77 | 56.10 | 47.77 | 53.90 | |||||||||||||
1950 | 43.77 | 47.57 | 49.74 | 53.43 | 53.43 | a | 56.27 | 62.06 | 59.23 | 60.53 | 57.94 | 55.43 | 52.41 | b | 54.32 | |||||||||||
1951 | 48.16 | 47.18 | 50.97 | 52.97 | 53.35 | 58.03 | 61.29 | 60.32 | 60.03 | 58.48 | 52.67 | 47.23 | 54.22 | |||||||||||||
1952 | 45.35 | 48.58 | j | 47.45 | 52.47 | 55.65 | 56.23 | 58.13 | 61.19 | 60.10 | 57.26 | 51.24 | e | 48.90 | 54.00 | a | ||||||||||
1953 | 52.39 | 48.82 | 49.32 | 51.07 | 52.94 | 56.87 | 63.06 | 61.03 | 59.10 | 57.61 | 54.00 | 49.52 | 54.64 | |||||||||||||
1954 | 47.39 | 52.54 | 49.71 | 53.53 | 55.19 | 58.47 | 64.32 | 63.61 | 60.20 | 56.23 | 56.13 | 49.84 | 55.60 | |||||||||||||
1955 | 46.42 | 47.18 | 51.10 | 50.67 | 54.32 | 57.17 | 60.65 | 62.71 | 61.93 | 55.77 | 51.37 | 50.35 | 54.14 | |||||||||||||
1956 | 48.58 | 44.79 | 49.26 | 51.07 | 55.94 | 58.33 | 60.94 | 61.84 | 61.17 | 57.52 | 55.57 | 51.39 | 54.70 | |||||||||||||
1957 | 47.71 | 52.36 | 51.65 | 52.70 | 56.48 | 61.37 | 63.32 | 65.29 | 61.73 | 58.45 | 52.47 | 52.19 | 56.31 | |||||||||||||
1958 | 49.74 | 53.29 | 50.16 | 55.10 | 57.65 | 59.97 | 59.73 | a | 63.26 | 63.87 | 63.65 | 54.40 | 53.65 | 57.04 | ||||||||||||
1959 | 52.23 | 49.07 | 54.35 | 56.97 | 57.61 | 61.37 | 65.94 | 65.35 | 65.68 | h | 61.31 | e | 57.47 | 53.10 | 57.71 | a | ||||||||||
1960 | 47.57 | h | 49.83 | 52.39 | c | 54.52 | a | 57.77 | 59.63 | 62.13 | 62.42 | 63.80 | 58.81 | 53.10 | 49.42 | 56.71 | a | |||||||||
1961 | 53.48 | 51.92 | c | 51.48 | 53.73 | 54.94 | 58.00 | 63.52 | 62.90 | 56.83 | 57.20 | a | 53.43 | 47.94 | 55.45 | |||||||||||
1962 | 48.68 | 49.39 | 48.03 | 53.23 | 54.26 | 55.10 | 59.03 | 61.48 | 59.80 | 58.16 | 54.07 | 51.68 | 54.41 | |||||||||||||
1963 | 49.03 | 54.29 | 49.29 | 50.77 | 56.97 | 58.70 | 60.97 | 63.87 | 66.07 | 61.32 | 55.00 | 50.71 | 56.42 | |||||||||||||
1964 | 49.52 | 50.76 | 49.74 | 52.03 | 53.06 | 56.43 | 59.77 | 63.45 | ----- | z | ----- | z | ----- | z | ----- | z | 54.35 | d | ||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 47.16 | 48.37 | 49.56 | 51.84 | 54.93 | 57.86 | 61.05 | 61.79 | 60.13 | 57.09 | 52.56 | 49.45 | 54.26 | |||||||||||||
S.D. | 2.75 | 2.98 | 2.30 | 2.16 | 2.16 | 1.52 | 2.03 | 1.73 | 2.06 | 2.32 | 2.21 | 2.76 | 1.26 | |||||||||||||
SKEW | -0.44 | -0.16 | 0.08 | 0.08 | -0.44 | 0.41 | 1.27 | 0.57 | 0.30 | 0.50 | -0.04 | 0.96 | 0.18 | |||||||||||||
MAX | 53.48 | 54.29 | 54.35 | 56.97 | 60.06 | 61.37 | 68.32 | 66.70 | 66.07 | 63.65 | 57.47 | 59.63 | 57.04 | |||||||||||||
MIN | 38.32 | 42.50 | 45.39 | 47.13 | 48.68 | 54.50 | 57.48 | 58.87 | 55.90 | 51.42 | 48.23 | 44.90 | 51.73 | |||||||||||||
YRS | 44 | 44 | 45 | 46 | 46 | 46 | 45 | 43 | 43 | 43 | 43 | 44 | 36 |