YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1903 | 50.20 | u | 29.07 | 52.21 | b | 62.57 | 69.84 | 84.53 | 88.60 | a | 90.40 | a | 76.76 | a | 67.40 | a | 57.21 | a | 43.29 | 65.62 | a | |||||
1904 | 41.45 | b | 51.15 | b | 55.83 | a | 65.58 | d | 72.94 | 80.63 | 88.23 | a | 87.74 | d | 78.79 | a | 62.83 | a | 56.43 | 44.81 | 65.53 | |||||
1905 | 42.58 | 40.18 | 55.77 | 64.27 | 67.59 | b | 83.30 | 89.80 | a | 89.27 | a | 78.43 | 62.10 | 48.60 | 35.35 | 63.10 | ||||||||||
1906 | ----- | z | 46.30 | a | 48.42 | 60.10 | 70.68 | 80.73 | 89.41 | b | 85.14 | b | 77.48 | a | 65.03 | b | 47.52 | a | 43.33 | a | 64.92 | a | ||||
1907 | 36.19 | 54.59 | a | 52.90 | 67.67 | 69.97 | a | 78.04 | c | 91.20 | a | 86.55 | b | 79.07 | b | 68.38 | o | 51.83 | 46.82 | c | 64.99 | a | ||||
1908 | 43.17 | b | 42.22 | b | 56.07 | a | 67.03 | a | 64.83 | b | 77.30 | g | 87.38 | b | 82.85 | e | 75.52 | c | 58.20 | a | 52.56 | l | 40.48 | f | 64.14 | c |
1909 | 48.28 | f | 47.76 | g | 53.82 | c | 61.17 | g | 69.09 | i | 82.31 | a | 87.00 | d | 84.55 | 73.75 | b | 68.47 | a | 51.74 | c | ----- | z | 71.66 | e | |
1910 | 37.70 | d | 42.88 | d | 65.86 | j | 69.04 | e | 79.78 | m | 84.96 | f | 90.46 | r | 85.63 | a | 78.23 | 64.74 | 57.47 | ----- | z | 62.24 | e | |||
1911 | ----- | z | 33.00 | p | 50.24 | j | 66.85 | q | 71.67 | a | 81.63 | c | ----- | z | 88.06 | ----- | z | ----- | z | ----- | z | 42.25 | g | 80.45 | i | |
1912 | 45.24 | b | 46.11 | a | 47.77 | e | 56.96 | f | 73.78 | h | 78.20 | t | 85.43 | q | 87.17 | m | 76.58 | r | 61.69 | o | 59.07 | p | 46.33 | p | 46.37 | i |
1913 | 39.71 | q | ----- | z | 53.71 | n | 67.42 | k | 74.67 | g | 78.03 | a | 87.42 | g | 86.09 | i | 75.73 | h | 64.12 | f | 54.12 | n | 36.85 | r | 78.03 | k |
1914 | 43.78 | v | ----- | z | ----- | z | ----- | z | ----- | z | 83.72 | l | 86.50 | k | 88.71 | g | 78.67 | o | ----- | z | ----- | z | ----- | z | ----- | z |
1915 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 58.00 | k | 39.06 | n | ----- | z |
1916 | 36.55 | t | 50.15 | p | 58.79 | q | 69.68 | k | 72.71 | j | 83.11 | c | 87.69 | r | 86.14 | c | 82.31 | a | 64.71 | g | 54.97 | a | 44.26 | h | 76.63 | h |
1917 | 32.00 | d | 47.39 | e | 47.12 | o | 65.88 | m | 62.25 | s | 86.04 | c | 97.09 | t | 91.86 | x | ----- | z | ----- | z | ----- | z | ----- | z | 55.14 | i |
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | 72.70 | h | 79.60 | j | 95.06 | 93.26 | l | 83.40 | y | ----- | z | 44.41 | m | 41.16 | 68.11 | j | ||
1952 | 40.97 | 47.76 | 49.45 | 69.03 | 76.94 | 85.77 | 94.29 | 94.71 | 85.00 | 81.19 | 57.63 | 48.55 | 69.27 | |||||||||||||
1953 | 51.00 | 48.43 | 60.71 | 68.53 | 69.42 | 84.97 | 94.10 | 89.75 | w | 76.44 | u | 58.26 | ----- | z | 37.94 | 63.71 | c | |||||||||
1954 | 37.55 | 36.64 | 46.29 | n | ----- | z | ----- | z | 82.90 | a | 94.31 | b | 89.19 | d | 82.13 | 69.48 | 58.26 | c | 42.45 | 65.88 | c | |||||
1955 | 32.42 | 36.56 | a | 52.90 | a | 62.77 | 72.82 | i | 83.40 | 90.45 | 89.74 | 83.63 | 72.42 | 56.55 | a | ----- | z | 66.08 | b | |||||||
1956 | ----- | z | 39.00 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 68.23 | 51.77 | 45.81 | 55.27 | i | |||
1957 | 37.10 | 52.11 | 57.30 | a | 62.37 | 69.19 | 87.03 | a | 92.87 | 91.00 | 82.97 | 63.23 | 43.07 | 48.83 | a | 65.59 | ||||||||||
1958 | 45.06 | 54.25 | 49.87 | 60.60 | 80.87 | 87.23 | 92.84 | 94.74 | 83.03 | 73.13 | 50.00 | 51.42 | 68.59 | |||||||||||||
1959 | 48.63 | a | 44.89 | 58.06 | 69.83 | 71.47 | a | 89.30 | 97.45 | 91.03 | 77.00 | 69.39 | 57.80 | 42.68 | 68.13 | |||||||||||
1960 | 35.00 | 43.17 | 61.35 | 68.13 | 76.55 | 90.10 | 97.19 | 93.43 | a | 86.17 | 67.39 | 52.43 | 44.68 | 67.97 | ||||||||||||
1961 | 46.26 | 50.71 | 54.55 | 64.70 | 74.17 | a | 90.83 | 95.58 | 90.35 | 76.33 | 65.29 | 46.17 | 41.29 | 66.35 | ||||||||||||
1962 | 37.39 | 43.11 | 48.77 | 71.80 | 71.97 | 85.37 | 91.97 | 92.10 | 85.97 | 69.26 | 59.97 | 45.48 | 66.93 | |||||||||||||
1963 | 40.61 | 55.57 | 53.28 | b | 58.93 | 79.81 | 78.67 | 95.03 | 90.61 | 84.10 | 73.29 | 52.80 | 39.03 | 66.81 | ||||||||||||
1964 | 40.19 | 43.90 | 50.16 | 60.27 | 71.97 | 81.77 | 95.87 | 91.23 | 81.80 | 74.88 | g | 48.27 | 45.07 | d | 64.59 | a | ||||||||||
1965 | 45.42 | 50.71 | 54.29 | 62.40 | 68.65 | 81.60 | 92.26 | 89.23 | 76.30 | 73.52 | 57.07 | 43.13 | 66.21 | |||||||||||||
1966 | 41.87 | 44.86 | 59.35 | 69.07 | 82.39 | 88.50 | 96.39 | 94.84 | 83.47 | 69.65 | 57.97 | 36.00 | b | 68.70 | ||||||||||||
1967 | 43.06 | 52.79 | 59.52 | 54.60 | 70.93 | a | 77.41 | c | 93.80 | a | 92.48 | 78.83 | 68.87 | 57.43 | 36.42 | 65.51 | ||||||||||
1968 | 42.80 | f | 52.00 | 57.65 | 59.83 | 74.29 | 85.43 | 92.10 | 81.55 | 76.47 | 65.68 | 52.70 | 42.35 | 67.28 | a | |||||||||||
1969 | 48.19 | 43.71 | 50.97 | 65.53 | 79.55 | 78.23 | 91.86 | b | 91.52 | 82.27 | 59.13 | 50.87 | 45.74 | 65.63 | ||||||||||||
1970 | 45.74 | 53.32 | 52.32 | 58.67 | 74.58 | 80.87 | 89.58 | e | 87.65 | e | 76.60 | 62.32 | 53.60 | 39.42 | 64.56 | |||||||||||
1971 | 42.68 | 44.93 | 55.16 | 61.40 | 67.31 | b | 82.87 | 90.13 | 86.52 | 74.61 | b | 61.32 | 48.27 | 37.74 | 62.74 | |||||||||||
1972 | 42.84 | 52.17 | 64.42 | 64.50 | 75.45 | 83.43 | 91.92 | r | 84.10 | 75.07 | a | 60.29 | 44.63 | 32.19 | 61.74 | a | ||||||||||
1973 | 34.65 | 43.79 | 47.16 | 59.20 | 74.84 | 82.53 | 87.74 | 86.77 | 76.67 | 66.90 | a | 51.97 | 46.00 | 63.18 | ||||||||||||
1974 | 39.19 | 47.36 | 59.61 | 63.17 | 78.17 | a | 88.87 | 88.24 | b | 87.57 | j | 80.80 | 62.42 | 52.10 | 40.45 | 63.67 | a | |||||||||
1975 | 41.81 | 45.54 | 49.87 | 54.63 | 68.60 | a | 79.72 | a | 87.83 | b | 85.41 | b | 79.64 | e | 66.52 | 49.90 | 46.16 | 62.97 | ||||||||
1976 | 44.19 | 50.45 | 51.00 | a | 63.70 | 78.04 | c | 85.68 | h | 92.90 | b | 87.44 | o | 79.00 | 67.97 | 57.47 | 46.07 | a | 63.08 | b | ||||||
1977 | 41.87 | 52.89 | a | 52.35 | 69.90 | 65.48 | f | 90.55 | h | 94.00 | d | 89.26 | h | 83.80 | 72.65 | 59.93 | 51.45 | 64.32 | c | |||||||
1978 | 45.03 | 49.93 | 60.28 | b | 62.17 | 72.45 | 87.64 | b | 96.07 | c | 92.55 | k | 78.73 | 71.71 | 47.30 | 38.56 | d | 64.53 | a | |||||||
1979 | 33.35 | 45.89 | 53.45 | 64.15 | c | 74.29 | 86.69 | a | 93.16 | f | 84.40 | k | 86.97 | 72.48 | 50.50 | 52.61 | c | 62.04 | b | |||||||
1980 | 45.03 | 48.41 | 52.61 | 66.67 | 69.73 | e | 84.77 | 93.52 | 86.69 | o | 80.63 | 68.32 | c | 58.35 | d | 49.26 | 65.21 | a | ||||||||
1981 | 41.29 | 55.04 | 56.35 | 70.70 | 72.52 | b | 90.39 | b | 95.89 | c | 94.19 | 84.76 | a | 62.74 | 59.23 | 53.89 | c | 69.75 | ||||||||
1982 | 45.35 | 49.68 | 55.61 | 67.04 | c | 73.46 | g | 83.53 | 92.37 | d | 91.12 | f | 75.83 | 63.89 | d | 50.67 | 42.52 | 62.65 | b | |||||||
1983 | 48.39 | 51.81 | a | 56.67 | a | 58.61 | b | 71.93 | d | 85.21 | a | 91.96 | c | 90.26 | h | 83.73 | 70.46 | c | ----- | z | ----- | z | 68.75 | c | ||
1984 | 35.23 | 46.21 | 55.19 | 62.72 | a | 79.13 | a | 81.30 | 92.26 | 88.19 | 82.83 | 60.16 | 55.15 | j | 39.29 | j | 68.32 | b | ||||||||
1985 | 36.45 | 49.72 | j | 54.81 | 73.10 | a | 79.50 | w | 91.77 | h | 92.27 | a | 92.07 | d | 76.07 | a | 67.26 | 49.59 | a | 36.74 | 64.26 | c | ||||
1986 | 49.10 | 51.24 | c | 62.07 | c | 64.61 | b | 74.74 | l | 89.73 | 90.43 | a | 92.26 | 74.40 | 65.03 | a | 56.00 | a | 44.23 | 67.19 | a | |||||
1987 | 34.39 | 46.52 | a | 54.10 | b | 71.41 | a | 76.22 | d | 88.31 | a | 88.20 | a | 88.68 | c | 82.07 | 72.57 | a | 49.07 | 40.97 | 66.04 | |||||
1988 | 35.26 | h | 49.78 | b | 59.15 | e | 65.28 | e | 76.19 | o | 88.73 | d | 95.34 | b | 88.71 | j | 80.72 | a | 75.21 | b | 53.00 | d | 41.24 | f | 70.90 | d |
1989 | 39.62 | g | 41.26 | e | ----- | z | ----- | z | ----- | z | ----- | z | 95.59 | b | 88.61 | 81.27 | 68.45 | 57.63 | 48.45 | 68.75 | e | |||||
1990 | 48.26 | 40.56 | a | 56.74 | 68.07 | 73.47 | a | 86.27 | 93.13 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.64 | e | |||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 41.52 | 47.13 | 54.77 | 64.52 | 73.31 | 84.27 | 92.33 | 89.15 | 80.00 | 67.16 | 53.16 | 43.46 | 66.18 | |||||||||||||
S.D. | 4.99 | 5.45 | 4.11 | 4.47 | 4.16 | 3.69 | 2.91 | 3.42 | 3.60 | 4.97 | 4.43 | 5.02 | 2.14 | |||||||||||||
SKEW | -0.17 | -0.86 | 0.18 | -0.19 | 0.28 | -0.04 | -0.17 | -0.19 | 0.09 | 0.26 | -0.26 | -0.01 | -0.09 | |||||||||||||
MAX | 51.00 | 55.57 | 64.42 | 73.10 | 82.39 | 90.83 | 97.45 | 94.84 | 86.97 | 81.19 | 59.97 | 53.89 | 69.75 | |||||||||||||
MIN | 32.00 | 29.07 | 47.16 | 54.60 | 64.83 | 77.41 | 87.00 | 81.55 | 73.75 | 58.20 | 43.07 | 32.19 | 62.74 | |||||||||||||
YRS | 42 | 46 | 44 | 43 | 37 | 44 | 44 | 37 | 45 | 44 | 43 | 40 | 20 |