YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1897 | 31.06 | 32.45 | 36.89 | 48.40 | 59.58 | 65.20 | 69.44 | 70.60 | 63.42 | 50.85 | 45.08 | 30.89 | 50.32 | |||||||||||||
1898 | 26.32 | 37.88 | 36.00 | 51.92 | 55.00 | 67.30 | 72.18 | 71.56 | 64.53 | 52.98 | 41.25 | 26.97 | 50.32 | |||||||||||||
1899 | 27.05 | 31.04 | 39.90 | 49.58 | 54.03 | 66.25 | 70.18 | 69.56 | 66.43 | 51.90 | 42.90 | 36.16 | 50.42 | |||||||||||||
1900 | ----- | z | 37.68 | 44.27 | 42.07 | 59.82 | i | 71.75 | x | 73.31 | e | 69.06 | 60.98 | 53.45 | 44.47 | 35.94 | 51.25 | c | ||||||||
1901 | 34.40 | 36.80 | 38.85 | a | 46.88 | 59.02 | a | 65.70 | 74.37 | a | 71.08 | e | 64.95 | 53.41 | c | 46.60 | 34.53 | b | 52.22 | |||||||
1902 | 34.42 | 35.35 | b | 35.56 | d | 51.47 | 56.60 | a | 65.13 | 66.97 | 68.92 | 62.05 | 53.40 | 40.77 | 33.90 | 50.38 | ||||||||||
1903 | 32.55 | b | 31.02 | c | 34.34 | 41.65 | 49.77 | 62.70 | 69.05 | b | 69.13 | 59.63 | 52.33 | a | 44.80 | 32.62 | b | 48.30 | ||||||||
1904 | 30.06 | 41.30 | b | 45.32 | 50.87 | 56.87 | 64.43 | 69.06 | 66.61 | 62.45 | 50.40 | 41.88 | 30.19 | 50.79 | ||||||||||||
1905 | 31.18 | 34.05 | 42.13 | 45.40 | 54.98 | 66.60 | 66.68 | 68.40 | 60.38 | 50.21 | 39.63 | 25.65 | 48.77 | |||||||||||||
1906 | 29.50 | 37.32 | 41.02 | 46.97 | 56.40 | 65.83 | 66.84 | 65.10 | 59.28 | 50.34 | 40.06 | c | 36.85 | 49.63 | ||||||||||||
1907 | 34.13 | 40.34 | 44.40 | 49.66 | a | 51.42 | 60.82 | 68.23 | 65.65 | 60.70 | 50.98 | a | 37.77 | 34.05 | a | 49.84 | ||||||||||
1908 | 33.85 | 35.53 | 44.43 | a | 47.57 | b | 51.03 | 63.39 | b | 68.66 | 65.32 | 60.41 | a | 47.05 | a | 38.90 | 33.90 | 49.17 | ||||||||
1909 | 35.69 | g | 34.30 | a | 38.29 | 47.22 | 54.14 | b | 65.09 | b | 69.97 | 65.87 | a | 58.45 | 51.97 | 41.60 | a | 24.00 | a | 50.08 | a | |||||
1910 | 30.77 | 33.02 | 48.92 | 50.22 | 59.97 | 68.80 | 69.44 | 68.77 | 63.87 | 51.05 | a | 42.28 | 36.65 | 51.98 | ||||||||||||
1911 | 39.60 | 33.59 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 36.59 | j | ||
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 | ----- | 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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.69 | b | 37.69 | k |
1940 | 31.84 | b | 33.93 | 43.14 | c | 48.33 | 58.40 | 66.80 | 71.03 | 67.71 | 60.83 | 51.50 | b | 37.27 | 35.17 | b | 50.50 | |||||||||
1941 | 30.90 | 36.75 | 39.08 | 41.57 | a | 55.23 | a | 59.60 | a | 66.18 | 66.02 | 58.31 | a | 48.08 | 39.38 | 33.21 | 47.86 | |||||||||
1942 | 30.65 | 30.27 | 35.69 | 47.25 | 55.06 | 65.88 | 69.95 | 66.77 | 60.78 | 49.95 | 42.21 | b | 34.47 | 49.08 | ||||||||||||
1943 | 32.32 | 36.48 | 39.55 | 51.67 | 57.08 | 63.77 | 68.85 | a | 68.24 | 61.48 | 50.32 | 39.48 | 30.58 | 49.99 | ||||||||||||
1944 | 27.81 | 32.59 | 36.19 | 44.07 | 53.61 | 62.95 | 68.48 | 68.18 | 61.32 | m | 51.79 | ----- | z | ----- | z | 49.52 | c | |||||||||
1945 | 31.27 | 38.05 | 37.60 | a | 46.98 | b | 59.05 | 64.00 | 70.32 | 71.05 | 64.53 | 53.23 | 41.02 | a | 28.06 | 50.43 | ||||||||||
1946 | 28.45 | 34.31 | a | 42.39 | 54.45 | 57.07 | a | 69.37 | 69.87 | 67.48 | 63.17 | 49.68 | a | 37.83 | 37.84 | 50.99 | ||||||||||
1947 | 27.05 | 38.67 | a | 42.27 | 49.07 | b | 60.40 | a | 64.93 | 71.85 | 66.17 | a | 63.93 | 53.23 | 32.38 | b | 29.79 | 49.98 | ||||||||
1948 | 29.76 | 31.00 | 31.85 | d | 50.34 | a | 58.50 | a | 64.19 | a | 70.77 | 68.66 | c | 64.80 | c | 51.56 | 34.30 | 33.28 | a | 49.09 | ||||||
1949 | 23.97 | a | 27.52 | 39.41 | d | 48.42 | 55.10 | 64.48 | 69.15 | 68.35 | d | 65.43 | c | 49.02 | 45.58 | 31.93 | c | 49.03 | ||||||||
1950 | 33.27 | c | 38.29 | b | 42.32 | a | 51.92 | 56.05 | a | 66.48 | 69.65 | 68.31 | 60.63 | 59.69 | 43.13 | 37.13 | 52.24 | |||||||||
1951 | 31.55 | a | 32.84 | 38.34 | 47.28 | 56.82 | 64.50 | c | 72.90 | 69.34 | 63.60 | 50.87 | 37.42 | 28.29 | 49.48 | |||||||||||
1952 | 32.12 | b | 31.34 | 32.90 | 47.64 | a | 57.74 | 67.05 | b | 69.40 | 69.38 | c | 64.30 | 55.50 | a | 34.79 | b | 27.60 | 49.15 | |||||||
1953 | 34.90 | a | 31.39 | 41.27 | 46.95 | 50.95 | a | 68.85 | 72.03 | 67.95 | b | 64.70 | 52.57 | a | 41.67 | 27.03 | a | 50.02 | ||||||||
1954 | 32.31 | 40.06 | a | 36.94 | 53.48 | 58.37 | 66.53 | 70.44 | 68.27 | 64.43 | a | 54.44 | 43.52 | a | 30.03 | 51.57 | ||||||||||
1955 | 24.77 | 26.59 | a | 39.31 | 45.45 | a | 53.15 | a | 63.62 | 68.94 | 68.10 | 64.04 | d | 54.37 | a | 38.90 | a | 34.80 | a | 48.50 | ||||||
1956 | 36.28 | b | 29.54 | c | 40.76 | 46.29 | b | 58.98 | 69.84 | e | 69.38 | a | 66.68 | a | 66.05 | 53.68 | 34.33 | 29.61 | 50.12 | |||||||
1957 | 32.20 | a | 39.34 | 39.66 | 45.17 | 52.00 | 66.22 | 68.65 | 66.74 | 62.15 | 50.15 | 35.66 | b | 35.33 | b | 49.44 | ||||||||||
1958 | 30.60 | 37.20 | 34.73 | 45.77 | 59.35 | 69.28 | a | 70.65 | e | 70.24 | 61.57 | 51.65 | 39.53 | 38.23 | 50.73 | |||||||||||
1959 | 32.56 | 32.27 | 38.76 | 49.48 | 57.11 | 68.25 | b | 72.58 | 67.93 | a | 63.12 | 50.79 | 39.13 | 34.02 | 50.50 | |||||||||||
1960 | 25.15 | 28.76 | 42.34 | 49.72 | 55.81 | 67.78 | 72.18 | a | 71.18 | 64.62 | 49.26 | 41.57 | 29.80 | a | 49.85 | |||||||||||
1961 | 30.85 | 34.77 | 39.71 | 47.42 | 57.45 | c | 69.70 | 71.75 | a | 69.11 | 59.55 | 50.60 | 36.85 | 26.62 | a | 49.53 | ||||||||||
1962 | 26.74 | 35.45 | 33.34 | 52.08 | 55.76 | 64.47 | 70.32 | 70.45 | 63.32 | 51.76 | 43.47 | 33.39 | 50.04 | |||||||||||||
1963 | 22.72 | b | 35.96 | a | 38.31 | 46.10 | d | 61.42 | 67.47 | 73.74 | 66.55 | 64.35 | 57.61 | 41.36 | a | 30.39 | 50.50 | |||||||||
1964 | 26.58 | 24.05 | 33.47 | 43.88 | a | 57.42 | 65.43 | 70.58 | 68.68 | c | 61.40 | 55.63 | a | 37.62 | a | 31.71 | 48.04 | |||||||||
1965 | 32.35 | 31.79 | 36.28 | a | 45.73 | 55.38 | a | 63.42 | 69.11 | ----- | z | 58.90 | 53.63 | a | 43.02 | a | 32.47 | 47.46 | a | |||||||
1966 | 27.35 | 27.89 | 39.39 | 49.33 | a | 60.45 | 68.47 | 71.77 | i | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 45.48 | f | |||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 30.53 | 34.02 | 39.15 | 47.94 | 56.31 | 65.76 | 70.08 | 68.29 | 62.50 | 52.02 | 40.24 | 32.27 | 49.97 | |||||||||||||
S.D. | 3.53 | 3.97 | 3.74 | 3.04 | 2.84 | 2.36 | 1.92 | 1.71 | 2.22 | 2.44 | 3.37 | 3.69 | 1.07 | |||||||||||||
SKEW | -0.09 | -0.33 | 0.20 | -0.10 | -0.44 | -0.27 | 0.19 | 0.02 | -0.22 | 0.84 | -0.31 | -0.31 | 0.21 | |||||||||||||
MAX | 39.60 | 41.30 | 48.92 | 54.45 | 61.42 | 69.84 | 74.37 | 71.56 | 66.43 | 59.69 | 46.60 | 38.23 | 52.24 | |||||||||||||
MIN | 22.72 | 24.05 | 31.85 | 41.57 | 49.77 | 59.60 | 66.18 | 65.10 | 58.31 | 47.05 | 32.38 | 24.00 | 47.86 | |||||||||||||
YRS | 40 | 42 | 41 | 41 | 40 | 40 | 40 | 39 | 39 | 40 | 39 | 40 | 36 |