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 | 94.10 | ----- | z | 76.55 | a | 68.45 | 57.73 | 47.43 | a | 68.85 | g | |||
1875 | 38.93 | a | 45.61 | 44.94 | o | 59.79 | b | 60.21 | b | 86.52 | a | 81.58 | 84.16 | 75.30 | 70.79 | b | 52.83 | a | 52.35 | 64.37 | a | |||||
1876 | 47.50 | a | 53.86 | 52.35 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 80.87 | 69.97 | ----- | z | 52.89 | m | 60.91 | g | ||||
1877 | 46.58 | 51.89 | 63.17 | b | 59.03 | 74.84 | 83.63 | 88.39 | 88.39 | h | 80.53 | 63.71 | 54.13 | 52.20 | a | 65.28 | a | |||||||||
1878 | 44.60 | a | 54.32 | c | 61.77 | a | 70.72 | a | 74.96 | e | 82.17 | a | 91.97 | 91.23 | i | 78.00 | 68.00 | 58.92 | d | 35.52 | b | 65.54 | a | |||
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 | 41.72 | b | 41.00 | a | 52.67 | a | 58.45 | a | 68.68 | 78.93 | 89.60 | a | 81.39 | 78.50 | 68.94 | 52.03 | ----- | z | 64.72 | 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 | 92.58 | 85.29 | 81.43 | 66.50 | a | 51.37 | 51.45 | 71.44 | f | |||||
1889 | 39.29 | 47.07 | a | 59.55 | 68.64 | b | 72.84 | 84.17 | 90.48 | 89.97 | 77.07 | 67.20 | a | 44.29 | b | 57.13 | a | 66.47 | ||||||||
1890 | 45.81 | 49.71 | 58.77 | 64.17 | 73.93 | a | 85.23 | 91.77 | 87.10 | 79.33 | 67.03 | 57.52 | a | 52.74 | 67.76 | |||||||||||
1891 | 36.90 | 45.41 | a | 48.45 | 65.30 | 73.07 | a | 80.57 | 87.35 | 89.32 | 82.00 | a | 69.42 | 54.93 | 42.84 | 64.63 | ||||||||||
1892 | 41.52 | b | 50.25 | a | 51.21 | b | 64.83 | a | 69.84 | 83.17 | 89.81 | 89.55 | 86.07 | 65.77 | 55.93 | 39.23 | a | 65.60 | ||||||||
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 | 92.61 | 88.03 | 80.37 | 73.87 | 51.30 | 47.03 | 72.20 | f | ||||||
1941 | 46.23 | 50.93 | 51.58 | 62.20 | 75.26 | 81.37 | 88.16 | 88.03 | 78.80 | 65.00 | 59.93 | 48.81 | 66.36 | |||||||||||||
1942 | 45.35 | 41.57 | 55.23 | 65.90 | 76.13 | 82.37 | 90.19 | 87.29 | 77.80 | 66.65 | 61.40 | 51.84 | 66.81 | |||||||||||||
1943 | 47.77 | 56.93 | 54.00 | 72.53 | 70.19 | 85.77 | 92.26 | 90.55 | 81.43 | 69.32 | 57.37 | 43.97 | 68.51 | |||||||||||||
1944 | 47.00 | 47.62 | 53.29 | 56.37 | 75.45 | 84.90 | 88.87 | 89.16 | 82.17 | 70.87 | 55.43 | 48.65 | 66.65 | |||||||||||||
1945 | 46.58 | 47.21 | 61.00 | 59.17 | 75.29 | 79.27 | 87.35 | 86.77 | 78.93 | 72.94 | 59.67 | 43.45 | 66.47 | |||||||||||||
1946 | 48.00 | 54.68 | 62.32 | 74.63 | 70.03 | 89.30 | 91.58 | 86.16 | 81.67 | 67.68 | 46.90 | 53.10 | 68.84 | |||||||||||||
1947 | 46.19 | 45.04 | 53.48 | 63.93 | 73.74 | 80.27 | 90.74 | 89.81 | 86.33 | 73.65 | 49.43 | 48.84 | 66.79 | |||||||||||||
1948 | 41.42 | 40.07 | 47.16 | 71.23 | 74.71 | 83.57 | 91.13 | 88.13 | 85.67 | 71.35 | 53.97 | 48.68 | 66.42 | |||||||||||||
1949 | 34.16 | 49.96 | 59.39 | 65.33 | 75.10 | 81.47 | 89.90 | 87.87 | 81.70 | 67.23 | 65.90 | 50.71 | 67.39 | |||||||||||||
1950 | 51.45 | 57.25 | 57.19 | 67.23 | 74.23 | 85.50 | 85.77 | 86.48 | 76.43 | 78.65 | 55.30 | 51.29 | 68.90 | |||||||||||||
1951 | 43.39 | 51.32 | 53.77 | 60.87 | 75.00 | 80.00 | 91.29 | 87.42 | 79.33 | 65.52 | 52.60 | 46.61 | 65.59 | |||||||||||||
1952 | 52.90 | 52.55 | 51.58 | 65.00 | 74.32 | 91.87 | 91.42 | 89.68 | 82.70 | 72.16 | 48.77 | 47.35 | 68.36 | |||||||||||||
1953 | 56.90 | a | 51.54 | 61.94 | 63.60 | 71.52 | 89.70 | 91.71 | 88.48 | 85.80 | 71.00 | 59.23 | 46.90 | 69.86 | ||||||||||||
1954 | 52.61 | 62.50 | 52.87 | 74.27 | 73.39 | 90.60 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 67.71 | f | ||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 45.34 | 49.93 | 55.58 | 65.15 | 72.85 | 84.11 | 90.03 | 87.65 | 80.59 | 69.27 | 54.87 | 48.18 | 67.14 | |||||||||||||
S.D. | 5.34 | 5.50 | 4.72 | 5.20 | 3.52 | 3.72 | 2.67 | 2.17 | 3.10 | 3.36 | 4.92 | 4.84 | 1.39 | |||||||||||||
SKEW | -0.00 | 0.12 | 0.13 | 0.27 | -2.27 | 0.58 | -1.38 | -1.18 | 0.36 | 0.77 | -0.05 | -0.77 | 0.24 | |||||||||||||
MAX | 56.90 | 62.50 | 63.17 | 74.63 | 76.13 | 91.87 | 94.10 | 90.55 | 86.33 | 78.65 | 65.90 | 57.13 | 69.86 | |||||||||||||
MIN | 34.16 | 40.07 | 47.16 | 56.37 | 60.21 | 78.93 | 81.58 | 81.39 | 75.30 | 63.71 | 44.29 | 35.52 | 64.63 | |||||||||||||
YRS | 23 | 23 | 22 | 22 | 22 | 22 | 24 | 21 | 25 | 25 | 24 | 23 | 17 |