YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1872 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1873 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1874 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 77.26 | ----- | z | 61.38 | b | 55.32 | 43.09 | b | 32.21 | c | 53.85 | g | ||
1875 | 21.95 | b | 30.44 | l | 31.94 | o | 45.18 | b | 46.29 | b | 66.59 | a | 63.71 | 65.10 | 58.80 | 55.26 | b | 40.14 | a | 37.37 | 50.04 | b | ||||
1876 | 30.60 | b | 38.67 | 37.73 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.17 | 54.27 | ----- | z | 35.06 | m | 45.49 | g | ||||
1877 | 30.19 | 37.50 | 45.95 | b | 46.45 | 60.79 | 69.07 | 75.47 | 75.54 | h | 64.10 | 49.00 | 38.42 | 37.32 | f | 51.69 | b | |||||||||
1878 | 28.23 | a | 39.26 | c | 45.50 | b | 54.09 | a | 59.27 | e | 68.98 | a | 78.52 | 78.45 | i | 61.47 | n | 43.18 | t | 38.14 | w | 28.29 | n | 53.41 | e | |
1879 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1880 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1881 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1882 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1883 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1884 | 27.60 | e | 30.56 | b | 41.66 | b | 49.48 | b | 60.37 | 70.63 | 79.02 | a | 72.21 | 67.75 | 55.73 | 39.30 | ----- | z | 54.03 | a | ||||||
1885 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1886 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1887 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1888 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 77.23 | 71.08 | 65.43 | 52.66 | b | 37.87 | 36.69 | 56.83 | f | |||||
1889 | 24.85 | 31.83 | b | 44.29 | 54.54 | d | 59.77 | 68.88 | 75.60 | 75.55 | 62.28 | 53.57 | b | 33.12 | d | 42.86 | b | 52.26 | ||||||||
1890 | 31.26 | 34.54 | 43.40 | 49.97 | a | 59.87 | a | 69.18 | 76.60 | 71.94 | 63.62 | 50.68 | 41.07 | b | 36.81 | 52.41 | ||||||||||
1891 | 23.74 | 31.10 | b | 35.81 | 50.55 | 58.97 | b | 66.48 | 72.40 | 72.87 | 66.32 | b | 52.81 | 39.73 | 32.02 | 50.23 | ||||||||||
1892 | 28.09 | d | 35.72 | b | 38.96 | d | 49.71 | b | 57.50 | 67.95 | 75.05 | 73.35 | 68.83 | 51.97 | 42.32 | 28.07 | b | 51.46 | ||||||||
1893 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1894 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1895 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1896 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1897 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1898 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1899 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1900 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1901 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1902 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1903 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1904 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1905 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | 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 | ----- | z | ----- | z |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 76.81 | 72.61 | 66.70 | 56.26 | 36.03 | 32.71 | 56.85 | f | ||||||
1941 | 32.85 | 37.02 | 39.63 | 49.40 | 61.89 | 67.05 | 73.16 | 73.08 | 63.13 | 51.85 | 42.10 | 32.55 | 51.98 | |||||||||||||
1942 | 28.44 | 28.18 | 39.35 | 51.83 | 59.94 | 68.35 | 74.39 | 71.98 | 62.28 | 52.44 | 42.83 | 35.74 | 51.31 | |||||||||||||
1943 | 32.34 | 40.32 | 37.05 | 56.08 | 56.23 | 69.50 | 76.00 | 75.77 | 63.72 | 51.26 | 39.52 | 29.97 | 52.31 | |||||||||||||
1944 | 30.16 | 34.10 | 38.19 | 44.03 | 59.76 | 69.13 | 73.37 | 73.39 | 64.98 | 54.29 | 39.77 | 31.94 | 51.09 | |||||||||||||
1945 | 30.21 | 34.45 | 43.52 | 44.85 | 60.02 | 64.85 | 73.11 | 72.66 | 62.30 | 54.84 | 41.83 | 27.03 | 50.81 | |||||||||||||
1946 | 31.31 | 37.50 | 45.11 | 57.60 | 56.06 | 72.47 | 76.26 | 73.00 | 65.43 | 51.45 | 34.40 | 36.56 | 53.10 | |||||||||||||
1947 | 29.40 | 30.77 | 38.29 | 49.27 | 59.05 | 65.68 | 74.74 | 74.63 | 68.48 | 56.40 | 34.47 | 33.34 | 51.21 | |||||||||||||
1948 | 27.35 | 26.84 | 31.94 | 54.77 | 60.29 | 69.03 | 75.37 | 73.19 | 68.22 | 52.34 | 37.35 | 32.29 | 50.75 | |||||||||||||
1949 | 20.39 | 33.21 | 42.55 | 51.33 | 60.85 | 68.22 | 75.68 | 73.10 | 65.70 | 51.47 | 47.38 | 32.98 | 51.91 | |||||||||||||
1950 | 33.15 | 39.73 | 40.90 | 50.98 | 58.26 | 70.52 | 72.40 | 70.71 | 63.85 | 60.02 | 38.72 | 34.53 | 52.81 | |||||||||||||
1951 | 28.18 | 35.16 | 37.98 | 47.25 | 60.84 | 65.28 | 76.21 | 73.26 | 63.60 | 49.87 | 36.70 | 31.29 | 50.47 | |||||||||||||
1952 | 36.39 | 36.76 | 37.63 | 50.72 | 59.94 | 75.25 | 75.42 | 75.00 | 66.32 | 53.37 | 33.77 | 31.79 | 52.70 | |||||||||||||
1953 | 40.05 | a | 34.41 | 44.73 | 48.45 | 57.29 | 73.50 | 77.06 | 74.06 | 68.08 | 55.18 | 43.52 | 32.26 | 54.05 | ||||||||||||
1954 | 36.63 | 43.86 | 38.44 | 56.70 | 59.90 | 74.27 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 51.63 | f | ||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 29.71 | 35.07 | 40.39 | 50.60 | 58.78 | 69.13 | 75.03 | 72.79 | 64.89 | 53.43 | 39.28 | 33.38 | 51.81 | |||||||||||||
S.D. | 4.57 | 4.15 | 3.65 | 3.83 | 3.16 | 2.80 | 2.99 | 2.19 | 2.53 | 2.46 | 3.56 | 3.48 | 1.03 | |||||||||||||
SKEW | 0.09 | -0.05 | -0.20 | 0.13 | -2.95 | 0.60 | -2.27 | -1.97 | -0.33 | 0.54 | 0.09 | 0.69 | 0.35 | |||||||||||||
MAX | 40.05 | 43.86 | 45.95 | 57.60 | 61.89 | 75.25 | 79.02 | 75.77 | 68.83 | 60.02 | 47.38 | 42.86 | 54.05 | |||||||||||||
MIN | 20.39 | 26.84 | 31.94 | 44.03 | 46.29 | 64.85 | 63.71 | 65.10 | 58.80 | 49.00 | 33.12 | 27.03 | 50.23 | |||||||||||||
YRS | 23 | 22 | 22 | 22 | 22 | 22 | 24 | 21 | 24 | 24 | 23 | 21 | 17 |