YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | ----- | 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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 81.38 | c | 82.67 | a | 74.32 | 67.53 | 54.55 | 45.77 | 67.70 | f | ||||
1963 | 40.35 | d | 56.35 | o | ----- | z | 68.90 | j | 74.11 | 78.80 | 83.16 | 81.40 | 74.40 | 67.02 | 53.53 | 40.74 | 65.95 | c | ||||||||
1964 | 43.73 | 41.90 | 54.61 | 64.83 | 74.76 | 81.03 | 83.15 | 83.18 | 73.62 | 64.40 | a | 54.73 | 46.97 | a | 63.91 | |||||||||||
1965 | 47.98 | 45.66 | 48.35 | 67.22 | 72.53 | 78.75 | 82.50 | 78.85 | a | 74.69 | a | 63.92 | 58.27 | 49.03 | 63.98 | |||||||||||
1966 | 38.95 | 42.48 | d | 56.98 | 62.78 | 71.44 | 78.24 | a | 83.37 | 77.33 | a | 72.90 | 61.26 | 57.52 | 42.27 | 62.13 | ||||||||||
1967 | 45.55 | 47.98 | b | 62.74 | 71.18 | 73.63 | 81.52 | 81.32 | 77.85 | a | 71.35 | 65.37 | a | 53.93 | 42.47 | a | 64.57 | |||||||||
1968 | 44.48 | 45.57 | 53.87 | 62.33 | 71.69 | 78.98 | 78.48 | 78.31 | 71.98 | 66.35 | a | 50.25 | 45.15 | 62.29 | ||||||||||||
1969 | 49.48 | 48.16 | 46.48 | 63.95 | a | 70.24 | 79.13 | 83.08 | 82.31 | 73.33 | d | 61.66 | 51.92 | 48.20 | a | 63.16 | ||||||||||
1970 | 42.95 | 49.00 | 51.27 | 63.03 | a | 70.17 | a | 77.33 | 81.69 | 80.92 | 74.40 | 60.21 | 52.33 | 49.35 | 62.72 | |||||||||||
1971 | 46.55 | 48.20 | 55.58 | 62.68 | 72.05 | 79.42 | 81.85 | 74.50 | 72.33 | 63.89 | 52.55 | 47.21 | 63.07 | |||||||||||||
1972 | 44.97 | 49.52 | 61.02 | 69.08 | 70.29 | 79.00 | 79.03 | 76.92 | 74.32 | 63.92 | 47.05 | 43.71 | 63.24 | |||||||||||||
1973 | 38.79 | 43.66 | 55.24 | 58.22 | 69.45 | 77.84 | a | 79.00 | 79.21 | 73.67 | 67.00 | 57.05 | a | 47.02 | 62.18 | |||||||||||
1974 | 44.31 | 47.43 | 62.25 | a | 65.30 | 76.02 | a | 78.43 | 80.40 | 76.18 | 65.68 | 62.69 | 50.72 | 43.37 | 62.73 | |||||||||||
1975 | 43.95 | 48.27 | 54.63 | 63.39 | b | 69.85 | 79.10 | 76.15 | 77.85 | 69.50 | b | 64.81 | 53.57 | a | 46.31 | b | 62.28 | |||||||||
1976 | 43.79 | 56.39 | b | 55.79 | 63.55 | 67.80 | a | 77.65 | 75.03 | 77.81 | 71.87 | 58.31 | 46.08 | 45.43 | c | 61.62 | ||||||||||
1977 | 41.13 | d | 50.07 | a | 54.48 | i | 62.16 | a | 74.21 | 80.73 | 81.48 | 83.37 | 80.02 | b | 65.79 | 54.95 | a | 48.58 | g | 67.39 | b | |||||
1978 | 38.20 | a | 43.35 | b | 57.31 | e | 68.36 | b | 73.42 | 79.95 | a | 82.89 | 80.18 | 72.37 | 63.92 | a | 52.90 | 43.88 | g | 64.80 | a | |||||
1979 | 37.65 | a | 46.88 | 54.92 | 63.69 | f | 70.19 | d | 75.73 | 81.12 | a | 76.87 | 73.00 | 67.75 | a | 48.52 | 45.85 | 61.68 | a | |||||||
1980 | 44.65 | a | 48.83 | 52.87 | 59.95 | 72.92 | 83.73 | 85.79 | 81.95 | 74.05 | 63.03 | 49.40 | a | 49.23 | 63.87 | |||||||||||
1981 | 44.87 | 48.75 | 53.68 | 65.28 | 70.94 | 79.47 | 81.53 | 77.79 | 74.32 | 64.34 | 56.87 | 49.50 | 63.94 | |||||||||||||
1982 | 45.52 | a | 45.65 | b | 58.23 | c | 64.45 | a | 70.92 | 79.29 | a | 81.92 | 82.45 | a | 76.88 | 64.71 | 51.64 | a | 42.79 | b | 63.70 | |||||
1983 | 43.25 | a | 49.39 | a | 57.39 | c | 62.57 | a | 73.10 | 79.88 | 83.26 | 83.66 | 77.90 | a | 68.50 | 56.41 | b | 38.20 | f | 66.85 | a | |||||
1984 | 40.07 | a | 49.55 | a | 55.29 | 64.41 | a | 74.37 | 79.35 | 80.58 | 79.97 | a | 72.08 | 62.18 | a | 52.33 | 48.68 | a | 63.24 | |||||||
1985 | 40.02 | 46.20 | 58.68 | a | 67.12 | 74.45 | 78.20 | 80.68 | a | 83.06 | 74.32 | 63.66 | 55.57 | a | 42.98 | 63.75 | ||||||||||
1986 | 48.23 | 52.45 | 59.37 | a | 68.32 | 72.62 | a | 77.08 | 81.42 | 79.30 | a | 74.03 | 62.75 | a | 51.28 | 43.61 | 64.20 | |||||||||
1987 | 43.98 | 48.09 | 51.15 | a | 60.38 | 69.68 | 76.57 | 80.50 | 80.42 | 73.65 | 66.44 | 52.45 | a | 46.47 | a | 62.48 | ||||||||||
1988 | 40.60 | 48.22 | 55.68 | 62.93 | 70.02 | a | 75.98 | 77.83 | b | 78.32 | 73.25 | 65.94 | 56.34 | a | 44.60 | 62.48 | ||||||||||
1989 | 47.42 | 45.36 | 58.16 | 68.03 | 76.11 | 77.45 | a | 81.71 | 79.28 | a | 71.64 | a | 67.02 | 55.18 | 41.13 | 64.04 | ||||||||||
1990 | 47.45 | 51.41 | 56.39 | 65.00 | 72.89 | 85.62 | 77.55 | a | 78.32 | 74.33 | 64.90 | 57.15 | 44.81 | 64.65 | ||||||||||||
1991 | 41.69 | 51.89 | 58.40 | 66.32 | 75.93 | a | 79.61 | b | 79.92 | 78.60 | 70.12 | a | 66.16 | 49.53 | 45.82 | 63.67 | ||||||||||
1992 | 42.68 | a | 51.93 | a | 57.77 | 65.62 | a | 69.10 | a | 77.73 | 80.66 | b | 77.73 | a | 75.58 | 66.94 | 50.38 | b | 47.18 | 63.61 | ||||||
1993 | 44.86 | b | 47.18 | 55.22 | a | 63.50 | f | 71.80 | a | 79.82 | b | 83.17 | a | 81.18 | i | 74.14 | e | 63.40 | a | 50.80 | 46.95 | 61.73 | b | |||
1994 | 45.00 | a | 49.69 | a | 57.97 | 64.65 | j | 74.56 | n | 84.18 | ----- | z | 81.74 | 74.43 | a | 66.71 | 55.71 | a | 50.71 | e | 62.90 | c | ||||
1995 | 47.80 | c | 54.06 | a | 55.12 | b | 64.77 | 71.52 | 77.14 | l | 83.35 | 81.34 | 74.97 | 66.66 | 55.34 | b | 47.27 | a | 63.84 | a | ||||||
1996 | 46.28 | a | 51.81 | 53.38 | c | 65.62 | 80.86 | b | 82.76 | a | 83.53 | 79.84 | 73.22 | 65.41 | c | 55.25 | d | 49.50 | 65.62 | |||||||
1997 | 42.71 | 45.46 | b | 59.82 | 59.72 | 71.71 | 78.23 | 81.93 | b | 81.81 | ----- | z | 65.61 | 51.67 | 42.88 | a | 61.96 | a | ||||||||
1998 | 49.71 | c | 50.38 | d | 55.46 | g | 63.30 | b | 78.40 | 85.55 | a | 86.52 | c | 80.70 | a | 78.93 | a | 68.61 | ----- | z | 47.02 | c | 68.91 | b | ||
1999 | 49.85 | 56.64 | 56.43 | a | 66.55 | 73.60 | 79.38 | a | 82.44 | 83.77 | 75.88 | a | 68.25 | q | ----- | z | ----- | z | 69.39 | c | ||||||
2000 | ----- | z | ----- | z | ----- | z | 69.73 | d | 78.63 | a | 78.50 | 83.60 | 82.18 | f | 77.27 | b | 64.48 | a | 46.98 | b | 41.48 | d | 67.58 | d | ||
2001 | 42.41 | c | 48.71 | b | 52.20 | c | 67.57 | a | 74.98 | d | 82.79 | a | 85.14 | c | 82.11 | c | 75.38 | d | 66.98 | c | 54.63 | c | 45.43 | d | 64.86 | |
2002 | 46.71 | c | 44.68 | f | 54.83 | h | 66.60 | e | 73.38 | g | 81.05 | i | 82.85 | n | 83.92 | e | 75.32 | e | 62.91 | h | 50.00 | d | 44.46 | c | 61.17 | f |
2003 | 45.98 | i | 48.46 | e | 54.61 | m | 66.83 | j | 76.03 | k | 78.27 | s | 81.36 | x | 80.06 | v | 74.22 | l | 66.37 | h | 55.00 | o | 49.61 | q | 48.46 | k |
2004 | ----- | z | 44.53 | m | 57.54 | s | 63.00 | i | 73.57 | j | 79.92 | q | 80.25 | o | 77.61 | m | 72.00 | m | 64.00 | s | 51.03 | m | 45.33 | y | ----- | z |
2005 | 45.76 | n | 48.34 | f | 54.26 | f | 61.05 | k | 71.82 | f | 80.74 | a | 80.83 | b | 79.47 | 78.10 | 65.11 | 54.95 | 45.72 | a | 69.27 | e | ||||
2006 | 50.78 | a | 50.50 | 57.23 | 68.17 | f | 76.40 | a | 81.30 | 83.65 | a | 81.28 | k | 68.89 | p | 64.20 | a | 55.63 | 44.98 | a | 62.74 | c | ||||
2007 | 39.18 | 49.71 | i | 58.34 | 57.33 | u | 65.30 | p | 76.56 | n | 79.52 | j | 80.89 | 76.80 | c | 68.42 | a | 55.47 | 46.88 | a | 60.85 | e | ||||
2008 | 45.95 | b | 53.58 | d | 57.68 | 64.87 | 74.69 | 84.86 | a | 80.87 | d | 79.67 | a | 70.62 | 64.39 | 53.35 | 47.16 | b | 64.81 | |||||||
2009 | 45.85 | a | 55.38 | h | 59.52 | a | 67.10 | j | 72.74 | 79.73 | 80.18 | 80.66 | 71.27 | b | 61.94 | 54.23 | 39.97 | 64.61 | b | |||||||
2010 | 41.89 | 42.38 | 53.37 | 62.32 | 65.88 | n | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 49.99 | h | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 44.14 | 48.56 | 56.01 | 64.72 | 72.93 | 79.75 | 81.48 | 80.06 | 73.91 | 64.87 | 53.16 | 45.62 | 63.46 | |||||||||||||
S.D. | 3.34 | 3.47 | 3.37 | 2.88 | 2.80 | 2.43 | 2.32 | 2.30 | 2.59 | 2.26 | 3.00 | 2.63 | 0.98 | |||||||||||||
SKEW | -0.06 | 0.20 | -0.53 | -0.00 | 0.67 | 0.88 | -0.52 | -0.14 | -0.29 | -0.58 | -0.50 | -0.21 | 0.12 | |||||||||||||
MAX | 50.78 | 56.64 | 62.74 | 71.18 | 80.86 | 85.62 | 86.52 | 83.92 | 80.02 | 68.61 | 58.27 | 50.71 | 65.62 | |||||||||||||
MIN | 37.65 | 41.90 | 46.48 | 58.22 | 67.80 | 75.73 | 75.03 | 74.50 | 65.68 | 58.31 | 46.08 | 39.97 | 61.62 | |||||||||||||
YRS | 44 | 41 | 40 | 38 | 41 | 42 | 43 | 43 | 44 | 44 | 44 | 42 | 28 |