YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1897 | 17.30 | h | 21.35 | b | 30.71 | c | 57.31 | a | 71.84 | 78.27 | 87.45 | 78.13 | 84.63 | 62.23 | 39.30 | 24.58 | 57.80 | a | ||||||||
1898 | 31.19 | 34.04 | 42.39 | 60.70 | 67.39 | 82.23 | 87.52 | f | ----- | z | ----- | z | 50.25 | k | 39.67 | 29.39 | 48.37 | d | ||||||||
1899 | 29.23 | 19.22 | a | 26.45 | 58.93 | 69.73 | a | 80.57 | 89.74 | 86.45 | 73.97 | a | 60.68 | 53.17 | 27.81 | 56.33 | ||||||||||
1900 | 32.84 | 24.21 | 40.10 | 67.03 | a | 79.70 | a | 84.10 | 83.77 | 86.19 | 71.66 | a | 66.71 | 37.66 | a | 35.52 | 59.12 | |||||||||
1901 | 30.93 | a | 28.60 | c | 44.16 | 60.15 | c | 73.18 | c | 78.77 | 91.63 | a | 86.93 | a | 70.48 | c | 64.47 | a | 45.84 | k | 27.10 | 59.67 | a | |||
1902 | 28.60 | a | 26.00 | 44.57 | a | 57.28 | a | 72.50 | a | 74.39 | b | 83.87 | 78.90 | a | 71.21 | a | 62.76 | b | 42.47 | 21.70 | a | 55.35 | ||||
1903 | 24.39 | 17.85 | a | 39.83 | a | 59.83 | 71.23 | 77.00 | 81.58 | 78.81 | 71.67 | c | 65.19 | 39.21 | f | 27.71 | j | 58.74 | b | |||||||
1904 | 16.00 | 17.04 | a | 39.76 | b | 53.32 | b | 69.83 | b | 74.60 | 80.57 | c | 81.82 | c | 73.41 | a | 64.72 | b | 51.80 | 29.29 | c | 54.35 | ||||
1905 | 16.97 | a | 23.44 | a | 48.10 | a | 57.30 | 63.67 | a | 76.50 | 78.48 | 82.42 | 76.00 | 55.37 | a | 46.04 | c | 29.10 | b | 54.45 | ||||||
1906 | 29.61 | 30.39 | 30.77 | 62.27 | 69.65 | 76.00 | 81.93 | a | 81.71 | 74.87 | 60.79 | b | 37.73 | 26.97 | 55.22 | |||||||||||
1907 | 15.03 | b | 27.71 | 44.53 | a | 50.37 | 59.57 | j | 76.10 | a | 83.97 | a | 83.94 | 71.40 | 63.00 | a | 44.21 | a | 37.61 | 54.35 | a | |||||
1908 | 35.73 | e | 28.76 | 41.87 | 63.60 | 69.80 | a | 76.66 | a | 86.78 | d | 85.16 | 86.90 | 59.84 | f | 45.87 | 29.40 | a | 59.14 | a | ||||||
1909 | 21.90 | 25.88 | d | 39.03 | 52.77 | 71.40 | a | 80.20 | 82.39 | 87.24 | b | 76.67 | r | 59.63 | a | 43.37 | c | 17.44 | d | 52.84 | a | |||||
1910 | 20.30 | a | 18.07 | 61.42 | 67.47 | 67.45 | ----- | z | 88.35 | 82.26 | 74.87 | 75.19 | j | ----- | z | 29.66 | b | 56.65 | c | |||||||
1911 | 20.60 | a | 25.12 | d | 53.50 | a | 59.67 | 77.62 | b | 88.90 | 85.13 | a | 82.00 | h | 68.90 | a | 52.48 | 32.48 | c | 30.46 | c | 54.08 | a | |||
1912 | 9.94 | 27.69 | c | 35.94 | 64.63 | 72.57 | c | 79.23 | 82.61 | 82.03 | 71.80 | e | ----- | z | ----- | z | 37.29 | c | 56.37 | b | ||||||
1913 | 29.31 | e | 28.00 | b | 42.20 | f | 62.93 | a | 68.41 | b | 84.33 | 82.68 | 89.03 | 78.20 | 55.45 | 47.90 | 41.35 | 60.69 | a | |||||||
1914 | 31.15 | e | 20.37 | a | 43.35 | 57.76 | a | 69.26 | 79.34 | a | 89.00 | 85.56 | f | 76.67 | 69.83 | g | 61.36 | s | 20.97 | 54.21 | c | |||||
1915 | 21.90 | 30.74 | a | 29.03 | 69.97 | a | 64.03 | a | 74.86 | a | 77.90 | 79.03 | 74.40 | 61.65 | 64.86 | w | 31.81 | 55.94 | a | |||||||
1916 | 12.55 | 23.21 | 41.61 | 55.03 | 69.03 | a | 75.20 | ----- | z | 80.38 | b | 71.95 | h | 53.44 | f | 44.20 | 22.13 | a | 47.04 | c | ||||||
1917 | 18.26 | d | 18.21 | 36.55 | 50.60 | 68.53 | a | 75.17 | a | 89.03 | b | 81.10 | 73.36 | h | ----- | z | 52.76 | a | 20.63 | a | 51.09 | b | ||||
1918 | 16.36 | f | 32.38 | b | 52.94 | 55.48 | a | 71.75 | g | 79.17 | 83.57 | a | 86.53 | a | 72.32 | b | 64.61 | 45.92 | d | 34.23 | 60.72 | b | ||||
1919 | 36.78 | h | 24.93 | a | 39.06 | 55.17 | f | 75.05 | i | 83.82 | h | 86.81 | d | 85.16 | 78.48 | c | 53.41 | d | 35.19 | d | 21.48 | 53.07 | d | |||
1920 | ----- | z | 29.75 | a | 40.43 | c | 46.23 | 69.13 | 75.93 | a | 82.10 | 82.44 | d | ----- | z | 67.79 | b | 37.90 | a | 29.83 | h | 59.08 | c | |||
1921 | 31.87 | 36.25 | 47.81 | 62.71 | b | 67.90 | a | 79.00 | h | ----- | z | 80.42 | 68.03 | a | 58.07 | c | ----- | z | 32.26 | h | 56.63 | d | ||||
1922 | 19.84 | 12.73 | b | 37.13 | 51.07 | 65.87 | a | 77.03 | 79.96 | d | 88.00 | i | ----- | z | 68.10 | 42.00 | a | 24.94 | 47.87 | b | ||||||
1923 | 29.00 | a | 24.52 | a | 38.62 | g | 60.63 | 72.25 | c | 81.83 | a | 87.48 | 82.26 | h | 74.60 | o | 59.20 | a | 51.23 | 39.50 | i | 58.27 | d | |||
1924 | 19.32 | 35.14 | 37.70 | a | 61.31 | a | 60.17 | m | 73.53 | 79.26 | 81.70 | a | 70.40 | 70.48 | d | 44.57 | 20.43 | a | 53.99 | a | ||||||
1925 | 22.42 | 32.26 | a | 51.11 | d | 67.30 | 71.06 | 78.30 | 85.29 | 89.28 | b | 82.23 | d | 48.80 | f | 50.57 | i | 29.39 | 60.86 | b | ||||||
1926 | 28.67 | a | 36.32 | 42.00 | a | 72.62 | q | 81.03 | b | 78.76 | a | 88.42 | 85.65 | 73.27 | d | 61.35 | 36.27 | 26.87 | 58.06 | a | ||||||
1927 | 26.90 | 34.61 | 46.61 | 57.27 | 63.82 | i | 77.97 | 82.32 | 82.27 | a | 77.83 | 67.81 | ----- | z | 13.81 | 56.74 | b | |||||||||
1928 | 29.39 | 35.64 | a | 50.27 | a | 53.82 | b | 77.03 | 77.77 | 86.71 | 92.33 | j | 74.43 | 62.13 | 42.83 | f | 38.03 | a | 58.52 | b | ||||||
1929 | 12.27 | a | 19.61 | 45.58 | 59.57 | 69.10 | 82.64 | b | 91.48 | 90.42 | 69.50 | 62.68 | 37.00 | 28.20 | a | 55.67 | ||||||||||
1930 | 15.28 | b | 43.62 | b | 44.39 | c | 62.66 | a | 67.65 | 79.87 | 96.33 | a | 93.05 | j | 79.10 | 58.23 | 46.23 | 35.94 | 57.21 | a | ||||||
1931 | 39.81 | 45.19 | a | 44.87 | a | 64.17 | 69.55 | 90.30 | 95.06 | 90.45 | b | 83.80 | 65.26 | 46.50 | 30.94 | 63.82 | ||||||||||
1932 | 22.79 | b | 28.48 | ----- | z | 60.73 | 76.10 | 83.83 | 93.10 | 88.13 | 79.63 | 58.90 | 42.60 | 27.03 | 60.12 | a | ||||||||||
1933 | 36.10 | 26.96 | 45.03 | 59.43 | 70.32 | 96.47 | 94.19 | 86.90 | a | 82.60 | ----- | z | 47.42 | r | 28.87 | a | 62.69 | b | ||||||||
1934 | 33.64 | c | 37.04 | a | 45.03 | 62.10 | 87.94 | 87.17 | 93.97 | a | 88.59 | b | 71.71 | b | 67.29 | 49.20 | 26.87 | a | 62.54 | |||||||
1935 | 22.81 | 37.93 | 46.80 | a | 50.28 | a | 62.86 | b | 75.83 | 94.42 | 86.48 | b | 80.68 | b | 63.48 | 36.70 | 28.45 | 57.23 | ||||||||
1936 | 10.87 | 1.97 | 42.71 | 54.79 | a | 76.48 | 84.93 | b | 102.45 | 92.94 | 81.67 | 62.81 | 37.03 | 28.68 | 56.44 | |||||||||||
1937 | 9.32 | 23.54 | 38.32 | 52.80 | 72.58 | 77.23 | 91.32 | 94.39 | 79.20 | 61.23 | a | 41.97 | 26.42 | 55.69 | ||||||||||||
1938 | 22.61 | 26.25 | 46.77 | 60.53 | 66.35 | 80.40 | 87.19 | 91.97 | a | 80.33 | 71.52 | 40.80 | 32.94 | 58.97 | ||||||||||||
1939 | 31.52 | 18.21 | 44.90 | 59.90 | 80.03 | 79.66 | a | 90.48 | 87.80 | a | 82.90 | 61.90 | 51.97 | 41.52 | 60.90 | |||||||||||
1940 | 16.39 | 27.75 | a | 34.23 | 55.50 | 71.58 | 81.30 | 91.84 | 82.10 | a | 81.00 | 71.07 | a | 36.79 | a | 31.90 | 56.79 | |||||||||
1941 | 25.23 | a | 26.07 | 39.03 | 60.03 | 76.48 | 79.33 | 89.48 | 88.63 | a | 74.90 | a | 60.23 | 45.30 | 36.45 | 58.43 | ||||||||||
1942 | 33.16 | 31.57 | 43.55 | 64.37 | 62.67 | a | 74.90 | 82.39 | 81.74 | 68.50 | 61.48 | 45.47 | 24.77 | 56.21 | ||||||||||||
1943 | 15.35 | 32.54 | 37.06 | 61.50 | 66.77 | 76.62 | a | 86.97 | 83.84 | 71.41 | a | 65.84 | 40.10 | 37.13 | 56.26 | |||||||||||
1944 | 38.10 | 28.76 | 32.61 | 50.93 | 73.74 | 76.47 | 82.00 | 80.71 | 71.47 | 65.77 | 41.79 | a | 30.48 | 56.07 | ||||||||||||
1945 | 24.42 | 30.79 | 51.52 | 56.52 | a | 65.81 | 69.23 | 81.94 | 82.26 | 71.80 | 64.03 | 40.90 | 20.26 | 54.96 | ||||||||||||
1946 | 27.19 | 30.82 | 51.52 | 66.77 | 67.77 | 79.83 | a | 85.29 | 80.71 | 72.70 | 56.94 | 39.23 | 31.42 | 57.52 | ||||||||||||
1947 | 31.68 | c | 25.79 | 38.87 | 51.60 | 66.00 | 73.90 | 84.84 | 91.35 | 77.90 | 69.39 | 34.72 | a | 25.29 | 55.94 | |||||||||||
1948 | 22.20 | a | 23.68 | a | 35.79 | c | 65.03 | a | 71.21 | b | 75.63 | 84.93 | b | 84.19 | 79.33 | 63.81 | 44.18 | b | 30.90 | 56.74 | ||||||
1949 | 19.00 | 27.43 | 41.77 | 65.00 | 75.61 | 81.43 | 89.29 | 90.17 | a | 73.27 | 62.10 | 53.00 | a | 29.74 | 58.98 | |||||||||||
1950 | 13.31 | b | 29.00 | c | 34.52 | 46.97 | 65.84 | 82.70 | 82.77 | 81.55 | 75.83 | 65.97 | 40.30 | 26.40 | a | 53.76 | ||||||||||
1951 | 22.32 | 36.04 | 31.06 | 53.53 | 71.52 | 73.86 | b | 82.06 | 81.68 | 72.00 | d | 59.32 | 39.77 | 22.23 | 53.78 | |||||||||||
1952 | 19.94 | 30.38 | 31.29 | 62.37 | 72.74 | 85.77 | 88.77 | 85.85 | d | 84.30 | c | 62.87 | a | 46.20 | 31.35 | 58.49 | ||||||||||
1953 | 28.10 | 29.25 | 42.87 | 52.10 | 68.90 | 80.17 | 83.84 | 84.48 | 78.03 | 71.58 | 48.30 | 29.84 | 58.12 | |||||||||||||
1954 | 18.19 | 45.54 | 38.71 | 62.37 | 66.55 | 77.60 | 90.26 | 85.90 | 74.07 | 57.87 | 51.96 | d | 32.61 | 58.47 | ||||||||||||
1955 | 28.29 | 23.32 | 42.06 | 71.40 | 78.81 | 78.30 | 92.65 | 90.65 | 78.43 | 67.97 | a | 35.07 | 18.97 | 58.83 | ||||||||||||
1956 | 19.35 | 21.66 | 37.48 | 55.30 | 71.26 | 86.13 | 82.84 | 81.74 | 75.53 | 71.87 | 43.40 | 36.65 | 56.93 | |||||||||||||
1957 | 20.19 | 31.89 | 41.81 | 57.23 | 66.94 | 76.52 | a | 88.96 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 49.10 | f | |||||
1958 | 35.90 | a | 30.96 | 38.61 | 60.33 | 77.55 | 75.47 | 80.68 | 89.16 | 79.83 | 67.23 | 47.33 | 26.97 | a | 59.17 | |||||||||||
1959 | 21.52 | 23.57 | 48.32 | 62.43 | 71.77 | 84.93 | a | 88.52 | 89.32 | 75.33 | 55.97 | 34.82 | b | 37.45 | 57.83 | |||||||||||
1960 | 21.00 | 22.79 | 27.32 | 55.18 | b | 72.10 | a | 76.73 | 89.65 | 87.13 | 76.47 | 57.69 | o | 49.07 | 26.93 | b | 54.94 | a | ||||||||
1961 | 22.57 | a | 31.29 | 47.58 | 55.80 | e | 68.21 | c | 83.63 | ----- | z | 87.41 | d | 67.89 | k | 65.14 | c | 45.78 | c | 24.69 | e | 53.21 | b | |||
1962 | 23.00 | a | ----- | z | ----- | z | 59.40 | 72.61 | c | 77.26 | c | 81.64 | c | ----- | z | ----- | z | ----- | z | ----- | z | 33.53 | n | 62.78 | g | |
1963 | 19.25 | c | 31.19 | a | 50.61 | 60.47 | 71.00 | 81.93 | 88.16 | 88.63 | a | 77.50 | 75.74 | 48.57 | 21.30 | a | 59.53 | |||||||||
1964 | 32.87 | 38.17 | 37.84 | 60.93 | 76.73 | a | 85.57 | 93.71 | 84.43 | c | 75.03 | 66.31 | b | 45.37 | c | 23.45 | i | 63.36 | a | |||||||
1965 | 20.16 | 27.79 | 31.29 | 56.21 | a | 73.45 | 78.20 | 89.71 | 87.19 | 62.87 | 71.21 | b | 45.30 | 38.45 | 56.82 | |||||||||||
1966 | 15.68 | ----- | z | 49.58 | 53.93 | 72.10 | 82.73 | 92.19 | 79.58 | 72.53 | 63.77 | 41.71 | b | 31.65 | 59.59 | a | ||||||||||
1967 | 29.03 | 27.64 | 47.32 | 60.57 | 68.39 | 77.87 | 87.65 | 91.23 | ----- | z | ----- | z | ----- | z | 31.93 | a | 57.96 | c | ||||||||
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 84.06 | o | 89.48 | d | 79.70 | c | 54.79 | g | 45.17 | g | 30.76 | b | 66.65 | i |
1970 | ----- | z | ----- | z | ----- | z | 60.36 | p | 72.93 | a | 84.25 | b | 90.68 | f | 91.10 | j | 81.70 | g | ----- | z | ----- | z | ----- | z | 78.59 | j |
1971 | ----- | z | ----- | z | ----- | z | 62.30 | t | 70.00 | d | 84.85 | d | 86.16 | f | 93.00 | c | 76.76 | i | 62.52 | h | 43.82 | m | 24.46 | g | 82.62 | i |
1972 | 18.00 | b | 21.78 | f | 40.38 | g | 54.20 | 70.23 | a | 79.52 | g | 82.42 | e | 85.15 | d | ----- | z | 61.42 | g | 39.70 | g | ----- | z | 62.00 | g | |
1973 | ----- | z | ----- | z | ----- | z | ----- | z | 74.84 | f | 85.77 | d | 92.13 | p | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 85.77 | k |
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 85.55 | k | 83.24 | i | 69.05 | i | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 23.86 | 27.90 | 41.60 | 58.71 | 71.12 | 79.72 | 86.80 | 85.42 | 75.72 | 63.53 | 43.27 | 28.95 | 57.31 | |||||||||||||
S.D. | 7.29 | 7.29 | 6.88 | 5.32 | 4.60 | 4.58 | 4.92 | 4.05 | 4.77 | 4.91 | 5.35 | 5.89 | 2.28 | |||||||||||||
SKEW | 0.09 | -0.30 | 0.03 | -0.06 | 0.88 | 0.87 | 0.51 | 0.16 | 0.09 | 0.04 | 0.06 | -0.06 | 0.82 | |||||||||||||
MAX | 39.81 | 45.54 | 61.42 | 71.40 | 87.94 | 96.47 | 102.45 | 94.39 | 86.90 | 75.74 | 53.17 | 41.52 | 63.82 | |||||||||||||
MIN | 9.32 | 1.97 | 26.45 | 46.23 | 62.67 | 69.23 | 77.90 | 78.13 | 62.87 | 52.48 | 32.48 | 13.81 | 53.76 | |||||||||||||
YRS | 68 | 69 | 67 | 70 | 69 | 71 | 67 | 65 | 61 | 58 | 57 | 65 | 35 |