YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | 88.00 | 98.81 | 90.74 | 85.80 | 80.35 | 54.57 | 51.35 | 78.52 | e | |||||||
1941 | 47.42 | 49.21 | 52.77 | 66.10 | 76.19 | 83.23 | 90.13 | 91.74 | 84.00 | 69.19 | 63.07 | 51.40 | a | 68.71 | ||||||||||||
1942 | 50.13 | 49.04 | 60.26 | 68.83 | 78.94 | 84.53 | 92.84 | 89.10 | 82.50 | 72.14 | b | 63.73 | 50.32 | 70.20 | ||||||||||||
1943 | 50.77 | 60.71 | 58.17 | a | 74.77 | 73.90 | a | 89.67 | 95.35 | 97.03 | 84.53 | 74.00 | 59.60 | 41.32 | 71.65 | |||||||||||
1944 | 40.52 | 50.52 | 57.13 | 62.59 | a | 76.52 | 87.50 | 89.29 | 93.16 | 85.73 | 72.23 | 60.38 | a | 44.65 | 68.35 | |||||||||||
1945 | 47.84 | 49.19 | a | 67.40 | a | 65.97 | 80.32 | 82.23 | 92.06 | 92.94 | 85.20 | 73.58 | 64.00 | 49.07 | a | 70.82 | ||||||||||
1946 | 50.97 | 57.61 | 66.06 | 79.73 | 76.45 | 90.93 | 97.16 | 90.97 | 82.20 | 70.13 | 55.33 | 56.45 | 72.83 | |||||||||||||
1947 | 48.19 | 49.29 | 54.68 | 64.70 | 72.87 | 86.73 | 92.74 | 96.10 | 91.35 | d | 80.74 | d | 54.90 | i | 50.19 | e | 71.60 | a | ||||||||
1948 | 44.77 | 42.76 | 50.58 | 76.13 | 79.84 | 87.80 | 93.61 | 90.13 | 87.50 | 75.52 | 54.40 | 53.73 | a | 69.73 | ||||||||||||
1949 | 38.83 | a | 48.79 | 58.84 | 67.60 | 77.87 | 86.10 | 91.06 | 89.61 | 81.93 | 73.35 | 70.60 | 51.87 | 69.71 | ||||||||||||
1950 | 53.74 | 61.29 | 61.42 | 70.48 | a | 80.65 | 89.40 | 84.39 | 86.32 | 75.97 | 79.39 | 59.43 | 53.90 | 71.36 | ||||||||||||
1951 | 46.39 | 54.93 | 57.71 | 65.77 | 77.61 | 82.13 | 92.58 | 93.00 | 83.37 | 71.84 | 56.03 | 53.47 | a | 69.57 | ||||||||||||
1952 | 55.97 | 55.21 | 55.71 | 67.77 | 78.87 | 97.13 | 94.52 | 94.81 | 85.33 | 74.71 | 53.97 | 46.84 | 71.74 | |||||||||||||
1953 | 59.00 | 54.46 | 65.13 | 69.13 | 79.26 | 97.60 | 92.26 | 90.13 | 89.43 | 73.90 | 59.83 | 48.90 | 73.25 | |||||||||||||
1954 | 51.71 | 63.46 | 57.06 | 75.53 | 72.37 | a | 92.20 | 98.29 | 93.39 | 89.27 | 73.10 | 64.70 | 55.23 | 73.86 | ||||||||||||
1955 | 50.81 | 51.30 | a | 62.13 | 74.00 | 79.00 | 85.40 | 95.00 | 93.55 | 85.47 | 78.35 | 58.63 | 54.45 | 72.34 | ||||||||||||
1956 | 50.16 | 48.00 | 64.61 | 70.93 | 85.23 | 94.80 | 93.84 | 95.13 | 89.93 | 79.16 | 57.90 | 55.61 | 73.78 | |||||||||||||
1957 | 44.10 | 57.36 | 54.61 | 63.72 | a | 70.87 | 86.87 | 96.87 | 91.77 | 82.72 | a | 68.23 | 52.07 | 58.10 | 68.94 | |||||||||||
1958 | 49.10 | 47.54 | 42.19 | 62.87 | 81.84 | 90.57 | 91.00 | 93.06 | 83.13 | 73.84 | 61.43 | 50.55 | 68.93 | |||||||||||||
1959 | 40.48 | 52.07 | 60.90 | 69.70 | 79.52 | 91.53 | 91.77 | 93.03 | 84.17 | 67.74 | 58.97 | a | 49.48 | 69.95 | ||||||||||||
1960 | 43.90 | 40.79 | 54.94 | 73.97 | 81.35 | 89.60 | 89.00 | 93.35 | 83.67 | 71.48 | 60.60 | 46.39 | 69.09 | |||||||||||||
1961 | 51.58 | 52.18 | 57.84 | 68.70 | 78.06 | 87.53 | 92.32 | 90.84 | 80.40 | 74.16 | 51.40 | 47.71 | 69.39 | |||||||||||||
1962 | 43.77 | 57.11 | 60.74 | 70.27 | 87.52 | 84.20 | 91.13 | 93.90 | 82.83 | a | 75.19 | 59.87 | 52.97 | 71.62 | ||||||||||||
1963 | 41.19 | 58.32 | 65.13 | 77.10 | 83.55 | 89.43 | 96.61 | 93.39 | 86.90 | 80.61 | 63.20 | 44.13 | 73.30 | |||||||||||||
1964 | 53.52 | 42.72 | 58.16 | 72.13 | 83.35 | 89.13 | 95.94 | 91.13 | 81.00 | 74.19 | 55.60 | 48.35 | 70.44 | |||||||||||||
1965 | 54.77 | 51.96 | 49.90 | 74.90 | 79.58 | 84.27 | 91.32 | 89.84 | 79.80 | 74.42 | 64.57 | ----- | z | 72.30 | a | |||||||||||
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1999 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2000 | 52.35 | k | 63.72 | k | 58.05 | k | 66.55 | h | 74.95 | j | 87.44 | n | 95.24 | j | 101.00 | u | 87.00 | s | 69.90 | u | 52.50 | x | ----- | z | ----- | z |
2001 | 43.86 | i | 47.79 | i | 56.42 | l | 78.38 | v | ----- | z | 89.45 | s | ----- | z | 95.59 | d | 87.78 | g | 76.34 | b | 61.16 | e | 55.12 | g | 77.70 | i |
2002 | 51.85 | e | 53.42 | d | 62.56 | d | 73.53 | 84.86 | c | 93.82 | b | 92.87 | a | 91.12 | f | 84.20 | e | 66.00 | f | 58.39 | g | 44.07 | p | 74.64 | d | |
2003 | 49.60 | a | 48.78 | e | 64.16 | l | 70.69 | n | 80.96 | h | 82.64 | b | 95.71 | c | 95.67 | g | 82.73 | h | 78.69 | e | 56.60 | e | 59.17 | s | 68.67 | f |
2004 | 48.21 | q | 51.45 | i | 66.35 | e | 69.60 | j | 86.11 | v | 89.18 | h | 89.48 | f | 87.33 | d | 87.63 | k | 67.90 | u | 55.20 | o | 56.08 | s | 76.84 | j |
2005 | 55.42 | s | 55.20 | h | 58.83 | a | 70.88 | n | 76.78 | m | 88.86 | p | 93.65 | n | 88.29 | q | 90.00 | t | 69.19 | o | 73.31 | n | 52.07 | a | 55.45 | j |
2006 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 95.04 | d | 95.52 | d | 89.96 | d | 77.70 | c | 72.87 | 62.46 | b | 49.55 | b | 77.59 | e | |
2007 | 39.37 | a | 49.00 | 65.68 | 63.37 | 77.03 | 83.83 | 91.55 | 96.10 | 86.83 | 78.00 | 61.43 | 45.94 | 69.84 | ||||||||||||
2008 | 52.00 | 53.90 | 59.61 | 70.80 | 83.35 | 94.63 | 92.61 | 88.29 | 80.03 | a | 71.74 | 63.03 | 52.23 | 71.85 | ||||||||||||
2009 | 55.27 | e | ----- | z | 65.43 | c | 71.07 | b | 76.07 | b | 90.33 | 98.73 | p | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 71.63 | g | |
2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 48.59 | 52.10 | 59.11 | 70.07 | 79.06 | 88.71 | 93.17 | 92.11 | 84.10 | 74.49 | 59.62 | 50.56 | 70.85 | |||||||||||||
S.D. | 5.29 | 5.50 | 5.64 | 4.60 | 3.94 | 4.34 | 3.02 | 2.64 | 3.52 | 3.56 | 4.28 | 3.93 | 1.69 | |||||||||||||
SKEW | -0.25 | 0.04 | -0.81 | 0.10 | -0.00 | 0.33 | -0.42 | -0.17 | -0.07 | 0.14 | 0.11 | -0.29 | 0.35 | |||||||||||||
MAX | 59.00 | 63.46 | 67.40 | 79.73 | 87.52 | 97.60 | 98.81 | 97.03 | 91.35 | 80.74 | 70.60 | 58.10 | 73.86 | |||||||||||||
MIN | 38.83 | 40.79 | 42.19 | 62.59 | 70.87 | 82.13 | 84.39 | 86.32 | 75.97 | 67.74 | 51.40 | 41.32 | 68.35 | |||||||||||||
YRS | 30 | 29 | 31 | 29 | 29 | 32 | 31 | 31 | 30 | 31 | 30 | 29 | 25 |