YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1898 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 81.89 | q | 76.03 | 63.61 | 50.55 | 41.40 | 57.90 | h | ||||
1899 | 43.24 | 45.50 | 54.32 | 62.75 | 66.63 | 77.33 | 83.60 | j | ----- | z | ----- | z | 62.37 | 52.88 | 46.85 | 56.88 | c | |||||||||
1900 | 48.47 | 46.89 | 57.40 | 56.78 | 72.03 | 79.30 | 86.11 | 78.23 | p | 75.20 | g | 64.44 | 47.92 | x | 43.53 | 61.66 | c | |||||||||
1901 | 46.60 | 49.11 | a | ----- | z | 57.13 | d | 68.60 | e | 75.43 | 85.18 | 83.71 | 75.68 | 65.26 | 54.57 | 44.00 | 64.12 | a | ||||||||
1902 | 44.87 | 49.80 | 51.78 | a | 62.39 | b | 70.05 | a | 80.50 | 83.13 | 82.85 | 76.19 | a | 65.82 | 50.68 | 44.73 | 63.57 | |||||||||
1903 | 44.44 | 43.84 | f | 53.44 | ----- | z | ----- | z | ----- | z | ----- | z | 83.12 | s | 75.42 | 62.85 | 53.63 | 45.18 | 55.83 | f | ||||||
1904 | 40.34 | 51.88 | 57.61 | 62.23 | 66.87 | a | 78.13 | 81.65 | 80.13 | d | 72.62 | i | 63.53 | b | 52.63 | d | 44.78 | a | 61.80 | a | ||||||
1905 | 48.02 | d | 50.77 | b | 54.31 | b | 60.05 | a | 64.92 | a | 75.03 | 79.76 | 81.06 | 71.83 | o | 61.97 | a | 53.90 | 41.02 | 60.98 | a | |||||
1906 | 43.06 | 51.16 | 55.44 | 59.83 | 66.66 | 73.55 | h | 81.60 | 78.84 | 74.05 | h | 61.76 | 52.82 | 47.60 | 59.88 | b | ||||||||||
1907 | 46.63 | 51.71 | 55.02 | 60.40 | ----- | z | 72.93 | 80.92 | 80.32 | 75.27 | 63.35 | e | 51.17 | 44.66 | 62.03 | a | ||||||||||
1908 | 45.26 | l | 49.59 | a | 53.98 | 59.35 | 63.36 | i | 72.77 | 79.66 | 78.55 | 73.03 | ----- | z | 52.36 | a | 44.10 | b | 62.60 | c | ||||||
1909 | 47.19 | 46.66 | 49.82 | 59.03 | 63.27 | 79.70 | ----- | z | ----- | z | 73.15 | 62.65 | 52.09 | a | 40.74 | 57.43 | b | |||||||||
1910 | 44.21 | 46.30 | 59.28 | a | 59.97 | 69.79 | 78.35 | 81.82 | 80.26 | 76.30 | ----- | z | 51.62 | 46.00 | 63.08 | a | ||||||||||
1911 | 47.47 | 48.39 | ----- | z | ----- | z | 70.02 | f | 77.25 | 79.98 | ----- | z | 78.10 | 63.17 | b | 49.93 | a | 39.74 | b | 60.50 | d | |||||
1912 | 44.60 | 48.31 | 55.45 | 57.72 | 68.88 | a | 81.02 | h | 81.64 | c | 80.18 | 73.40 | 63.92 | a | 51.52 | 42.35 | 60.72 | a | ||||||||
1913 | 41.53 | 47.82 | 51.79 | e | 63.04 | d | 70.42 | a | 77.94 | d | 83.00 | 82.60 | 75.57 | a | 63.56 | 57.53 | 44.32 | a | 63.26 | |||||||
1914 | 49.05 | 51.31 | a | 55.75 | u | 66.15 | 73.87 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.10 | h | |||
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 | ----- | 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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 78.40 | a | 66.08 | 53.80 | 46.77 | 61.26 | h | |||
1938 | 46.08 | 50.11 | 54.53 | 62.72 | 70.06 | 80.53 | 83.03 | 82.00 | d | 77.70 | 66.77 | 47.57 | 46.73 | 63.99 | ||||||||||||
1939 | 44.24 | 41.20 | 56.29 | 65.00 | 72.47 | 81.17 | 84.85 | 82.71 | 77.08 | 63.18 | 54.47 | 48.79 | 64.29 | |||||||||||||
1940 | 45.26 | 49.14 | 57.29 | 62.65 | 72.84 | 81.28 | 85.53 | 81.34 | 76.65 | 65.26 | 50.78 | 49.15 | 64.76 | |||||||||||||
1941 | 46.73 | 52.29 | 54.02 | 57.43 | 70.05 | 77.53 | 83.89 | 81.42 | 75.47 | 64.10 | 54.20 | 47.11 | 63.69 | |||||||||||||
1942 | 47.24 | 45.95 | 52.52 | e | 61.65 | 69.74 | 78.20 | 85.69 | 81.95 | 75.40 | 63.61 | 55.38 | 46.42 | 63.65 | ||||||||||||
1943 | 45.92 | 53.52 | 56.37 | 66.17 | 72.00 | 80.33 | 84.39 | 81.32 | 75.90 | 63.40 | 52.32 | 44.66 | 64.69 | |||||||||||||
1944 | 42.90 | a | 47.81 | 52.06 | 59.02 | 70.16 | 78.43 | 82.98 | 83.27 | 75.93 | 67.58 | a | 51.28 | 44.73 | 63.01 | |||||||||||
1945 | ----- | z | 49.23 | b | 51.26 | 59.83 | 70.13 | d | 76.03 | 85.45 | 82.97 | a | 76.83 | 66.34 | 51.35 | 42.84 | 64.75 | a | ||||||||
1946 | 41.69 | 46.96 | 55.85 | a | 66.68 | 69.24 | 81.85 | 85.02 | 81.95 | 78.07 | 62.08 | 49.71 | a | 48.00 | 63.93 | |||||||||||
1947 | 40.15 | a | 51.98 | 55.43 | a | 61.63 | 74.40 | 79.35 | 87.74 | 82.85 | 79.12 | 66.21 | 49.20 | 42.56 | 64.22 | |||||||||||
1948 | 43.30 | a | 46.57 | 50.44 | 64.73 | 71.17 | b | 81.02 | 85.11 | 82.90 | 77.58 | 65.27 | 45.65 | 43.82 | 63.13 | |||||||||||
1949 | 39.69 | 46.34 | ----- | z | 63.35 | 71.02 | 80.03 | 84.47 | 81.68 | 79.90 | 67.96 | q | ----- | z | 41.70 | u | 68.31 | d | ||||||||
1950 | 44.24 | 52.39 | a | 56.00 | 65.90 | 69.52 | 79.23 | 83.23 | 81.34 | 75.27 | 72.23 | 56.08 | 50.29 | e | 65.48 | |||||||||||
1951 | ----- | z | 48.57 | 54.43 | b | 63.20 | 71.68 | 78.55 | 88.81 | 82.73 | a | 79.36 | a | 67.98 | 51.67 | 45.50 | 66.59 | a | ||||||||
1952 | 46.40 | a | 47.22 | 50.48 | 63.40 | 74.24 | 81.85 | 86.03 | 84.15 | a | 79.80 | 69.53 | 51.65 | 44.27 | 64.92 | |||||||||||
1953 | 47.40 | 47.64 | 56.97 | 63.32 | 66.95 | 82.93 | 87.19 | 82.52 | a | 77.30 | 65.50 | 55.40 | 41.77 | a | 64.57 | |||||||||||
1954 | 46.55 | a | 53.93 | a | 54.72 | a | 66.93 | 72.81 | 79.20 | 85.79 | 79.81 | 78.38 | 68.77 | a | 55.64 | a | 46.40 | a | 65.74 | |||||||
1955 | 42.93 | a | 43.98 | 54.97 | b | 61.35 | 68.85 | d | 78.41 | a | 82.92 | 82.52 | 77.20 | 68.77 | a | 53.17 | a | 48.84 | b | 63.66 | ||||||
1956 | 49.07 | a | 44.80 | a | 56.00 | c | 61.70 | 73.18 | 84.36 | a | 83.56 | 81.21 | 79.48 | b | 66.92 | a | 49.98 | 45.33 | b | 64.63 | ||||||
1957 | 48.54 | c | 57.33 | b | 56.03 | 62.12 | 67.68 | 82.19 | a | 85.39 | 81.78 | b | 75.77 | 63.98 | a | 50.09 | a | 46.63 | 64.79 | |||||||
1958 | 44.73 | a | 52.05 | 50.45 | a | 60.30 | 75.60 | 82.86 | b | 84.74 | 84.05 | 77.10 | a | 67.19 | 53.29 | a | 48.90 | 65.11 | ||||||||
1959 | 47.84 | b | 48.14 | 54.57 | a | 65.78 | 70.42 | 82.92 | 85.11 | 80.92 | 76.18 | 66.35 | 52.45 | b | 47.71 | e | 64.87 | |||||||||
1960 | 42.91 | c | 44.36 | 57.83 | a | 63.13 | 70.02 | 81.42 | 84.90 | b | 83.68 | a | 79.41 | c | 65.41 | b | 55.47 | 45.47 | b | 64.50 | ||||||
1961 | 46.25 | a | 49.98 | a | 55.25 | a | 62.34 | a | 70.73 | 82.23 | 85.05 | 81.63 | 74.14 | a | 63.44 | 49.93 | a | 46.60 | j | 65.54 | a | |||||
1962 | 44.02 | c | 52.39 | a | 50.55 | 67.58 | 70.34 | 77.69 | a | 83.08 | a | 83.45 | 78.53 | 66.48 | 56.91 | b | 48.80 | d | 64.99 | |||||||
1963 | 42.40 | a | 52.70 | a | 55.02 | c | 61.43 | 73.56 | 77.15 | 85.19 | 80.58 | 78.54 | b | 69.17 | a | 54.81 | a | 44.73 | 64.61 | |||||||
1964 | 40.02 | 42.09 | 51.00 | a | 61.25 | b | 70.61 | 78.62 | 84.93 | a | 81.24 | b | 74.93 | 68.06 | 50.93 | b | 46.30 | i | 63.97 | a | ||||||
1965 | 47.34 | c | 47.30 | 52.23 | a | 62.12 | 68.52 | b | 75.58 | 83.97 | a | 82.90 | 75.70 | 65.98 | a | 57.63 | 47.65 | a | 63.91 | |||||||
1966 | 43.05 | a | 44.19 | a | 56.10 | e | 64.18 | 73.45 | 79.85 | 85.57 | b | 82.73 | 76.60 | 64.98 | 57.57 | 46.52 | 64.56 | |||||||||
1967 | 44.65 | 51.55 | 60.27 | e | 60.88 | 68.81 | b | 77.50 | 84.58 | 81.61 | 76.35 | g | 66.55 | 56.71 | b | 43.36 | f | 65.31 | b | |||||||
1968 | 46.07 | c | 53.81 | b | 55.30 | a | 60.80 | e | 69.82 | 80.62 | 82.27 | 78.61 | 74.75 | 66.00 | 53.96 | b | 43.65 | a | 63.81 | |||||||
1969 | 50.06 | 48.84 | 51.40 | 64.87 | 71.90 | 79.25 | 85.40 | a | 85.63 | 78.28 | 63.98 | a | 53.50 | 47.80 | a | 65.08 | ||||||||||
1970 | 44.34 | 50.14 | 53.39 | 58.55 | 72.19 | 82.15 | 86.13 | a | 84.20 | a | 75.81 | d | 61.15 | a | 54.28 | e | 47.74 | b | 64.17 | |||||||
1971 | 46.00 | 49.73 | 56.15 | 61.73 | 70.91 | d | 82.13 | 86.17 | h | 81.20 | f | 76.88 | 62.31 | b | 52.83 | 43.00 | c | 60.17 | b | |||||||
1972 | 45.09 | b | 49.07 | 61.39 | 61.75 | 69.84 | 78.55 | 85.79 | 82.26 | 76.43 | a | 65.77 | 49.76 | a | 44.00 | a | 64.14 | |||||||||
1973 | 45.16 | 48.18 | 49.26 | d | 54.61 | l | ----- | z | 77.42 | k | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 47.53 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 45.06 | 48.96 | 54.49 | 62.09 | 70.36 | 79.27 | 84.18 | 81.92 | 76.70 | 65.20 | 52.75 | 45.37 | 64.32 | |||||||||||||
S.D. | 2.52 | 3.19 | 2.73 | 2.64 | 2.49 | 2.57 | 2.02 | 1.53 | 1.74 | 2.34 | 2.60 | 2.46 | 0.68 | |||||||||||||
SKEW | -0.27 | -0.07 | 0.12 | 0.08 | -0.41 | -0.45 | -0.40 | -0.20 | -0.03 | 0.60 | -0.12 | -0.19 | -0.05 | |||||||||||||
MAX | 50.06 | 57.33 | 61.39 | 67.58 | 75.60 | 84.36 | 88.81 | 85.63 | 79.90 | 72.23 | 57.63 | 50.29 | 65.74 | |||||||||||||
MIN | 39.69 | 41.20 | 49.26 | 56.78 | 63.27 | 72.77 | 79.66 | 78.55 | 73.03 | 61.15 | 45.65 | 39.74 | 63.01 | |||||||||||||
YRS | 49 | 51 | 48 | 49 | 47 | 47 | 46 | 44 | 46 | 49 | 50 | 48 | 30 |