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 | 56.45 | s | 37.00 | 37.00 | k | |
1915 | 38.68 | 47.75 | t | 50.81 | 62.77 | 66.55 | 79.40 | 83.20 | a | 84.45 | 75.80 | 69.77 | 53.40 | 45.45 | 64.57 | a | ||||||||||
1916 | 40.60 | a | 49.45 | 57.71 | 62.23 | 71.06 | 80.10 | 84.26 | 81.68 | 77.60 | 66.58 | 56.00 | ----- | z | 66.12 | a | ||||||||||
1917 | ----- | z | ----- | z | ----- | z | 60.93 | 63.58 | 83.30 | 87.87 | 86.55 | 78.27 | 70.35 | 59.72 | a | 52.48 | 71.45 | c | ||||||||
1918 | 42.42 | 46.33 | a | 54.71 | 59.90 | 70.57 | a | 86.60 | 83.32 | 82.58 | 76.63 | 61.71 | ----- | z | ----- | z | 66.48 | b | ||||||||
1919 | ----- | z | ----- | z | 51.13 | 60.03 | ----- | z | ----- | z | ----- | z | ----- | z | 77.70 | 60.63 | a | 77.60 | ----- | z | 65.42 | g | ||||
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 | 77.43 | x | 81.60 | 69.00 | q | 48.07 | 41.23 | 56.96 | i | |||
1952 | 40.94 | 42.03 | 45.37 | a | 63.40 | 72.96 | f | 83.20 | 87.38 | r | 85.55 | 79.67 | 72.94 | 45.57 | 41.65 | 60.03 | b | |||||||||
1953 | 48.53 | a | 45.07 | 55.77 | 60.28 | e | 72.00 | j | 85.53 | 86.81 | 83.81 | 82.47 | 66.55 | 56.97 | a | 40.23 | 64.73 | a | ||||||||
1954 | 46.71 | 55.11 | 51.48 | 70.11 | b | 74.97 | b | 84.70 | 88.33 | g | 83.76 | b | 78.17 | 68.32 | 58.41 | a | 43.60 | f | 67.17 | b | ||||||
1955 | 37.44 | d | 39.22 | a | 53.06 | 64.03 | a | 70.00 | a | 80.80 | 86.65 | 86.39 | 81.90 | 72.19 | 51.16 | e | 49.39 | 64.35 | ||||||||
1956 | 48.29 | 41.83 | 57.74 | 63.61 | b | 77.54 | c | 88.21 | b | 86.07 | c | 84.12 | g | 82.33 | 70.77 | 49.10 | i | 43.00 | m | 68.49 | c | |||||
1957 | 42.55 | 50.14 | 53.88 | f | 59.47 | 68.31 | b | 84.00 | c | 89.30 | h | 85.90 | 80.80 | 63.65 | e | 45.75 | f | 48.62 | g | 66.85 | d | |||||
1958 | 42.70 | h | 49.35 | h | 46.76 | f | 60.62 | f | 77.95 | l | 86.89 | b | 89.56 | m | 88.80 | p | 76.10 | i | 65.77 | e | 52.31 | d | 57.00 | s | 68.32 | i |
1959 | 45.15 | e | 48.00 | i | 58.08 | f | 65.59 | a | 73.94 | o | 86.31 | q | 90.45 | 83.00 | 78.10 | 65.57 | h | 52.38 | f | 46.71 | x | 72.46 | g | |||
1960 | ----- | z | ----- | z | 58.43 | h | 69.20 | t | ----- | z | 87.73 | d | 90.50 | o | 92.50 | y | ----- | z | 63.35 | e | ----- | z | ----- | z | 75.54 | j |
1961 | 41.63 | a | 50.39 | e | 52.63 | a | 63.87 | g | 73.68 | f | 85.48 | c | 86.93 | c | 83.43 | c | 74.33 | 65.83 | b | 49.96 | b | 39.07 | c | 62.97 | b | |
1962 | 38.37 | a | 47.39 | e | 49.05 | j | 68.19 | d | ----- | z | 84.21 | k | 86.21 | c | 87.26 | d | 78.08 | e | 67.12 | f | 57.91 | g | 47.48 | f | 67.58 | f |
1963 | 36.31 | b | 50.24 | c | 56.11 | d | 63.74 | c | 77.00 | b | 81.82 | b | 89.38 | b | 81.13 | a | 80.44 | c | 72.21 | b | 55.66 | a | 45.11 | c | 65.76 | |
1964 | 42.20 | a | 44.21 | 47.27 | a | 59.45 | a | 72.10 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.53 | ----- | z | 54.29 | f | |||
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 84.10 | a | 72.67 | 70.94 | ----- | z | ----- | z | 75.90 | i | ||
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 43.13 | a | 43.13 | k |
1967 | 45.87 | 53.04 | 62.61 | 63.21 | a | 71.10 | 78.47 | 87.97 | a | 84.17 | a | ----- | z | 73.31 | r | 63.89 | b | ----- | z | 67.81 | c | |||||
1968 | ----- | z | ----- | z | ----- | z | 69.83 | f | 72.61 | 84.03 | 82.97 | 77.87 | a | 74.70 | 64.58 | 45.17 | 39.84 | 67.72 | d | |||||||
1969 | 44.42 | 42.46 | 48.06 | 63.90 | 73.90 | 78.53 | 85.06 | 85.32 | 79.10 | 60.20 | a | 48.13 | 45.47 | a | 62.88 | |||||||||||
1970 | 40.74 | 50.04 | 47.58 | 54.23 | 71.48 | 79.77 | 87.19 | 85.23 | 74.63 | 60.13 | 52.77 | 43.61 | 62.28 | |||||||||||||
1971 | 47.32 | c | 44.14 | 54.94 | n | 60.87 | 68.65 | 79.30 | 88.30 | u | 79.97 | 73.00 | a | 60.26 | 48.73 | 37.61 | 59.98 | b | ||||||||
1972 | 42.97 | a | 49.62 | 60.77 | 64.00 | a | 72.00 | a | 79.59 | a | 89.87 | 83.45 | 76.90 | 61.58 | 44.24 | e | 38.52 | 63.63 | ||||||||
1973 | 35.26 | 40.79 | 43.77 | 53.80 | 68.97 | 79.33 | 86.84 | 85.00 | 76.17 | 68.19 | 54.87 | 44.23 | a | 61.43 | ||||||||||||
1974 | 38.39 | 41.57 | 57.39 | 59.93 | 75.84 | 84.73 | 73.94 | 72.97 | a | 70.40 | 65.77 | 50.21 | a | 37.84 | 60.75 | |||||||||||
1975 | 38.42 | ----- | z | 47.42 | 54.27 | 66.35 | 79.57 | 84.55 | 84.16 | 75.13 | 66.94 | 50.47 | 40.77 | 62.55 | a | |||||||||||
1976 | 40.94 | 48.48 | 51.35 | 61.70 | 71.06 | 80.77 | 87.21 | b | 82.65 | 74.77 | 62.10 | 53.90 | 43.87 | 63.23 | ||||||||||||
1977 | 37.42 | 46.46 | 48.23 | 64.10 | 70.03 | 85.47 | 86.61 | 85.71 | c | 77.73 | 68.68 | 53.70 | ----- | z | 65.83 | a | ||||||||||
1978 | 41.00 | 41.93 | 53.81 | 62.77 | 68.13 | a | 83.96 | f | 90.21 | l | 86.26 | h | 77.64 | e | 69.19 | e | 50.50 | 37.35 | 55.81 | c | ||||||
1979 | 34.40 | a | 41.82 | ----- | z | 60.50 | 67.55 | 81.69 | a | ----- | z | 86.77 | 82.10 | 71.35 | 45.50 | 43.13 | 61.48 | b | ||||||||
1980 | 38.97 | a | 46.93 | a | 48.26 | 58.34 | a | 66.81 | 84.56 | c | 90.52 | 83.50 | e | 77.13 | 63.61 | 53.27 | 49.75 | c | 63.47 | |||||||
1981 | 46.81 | 47.86 | 48.74 | 65.43 | 70.55 | 85.33 | 86.68 | 85.77 | 76.80 | 63.03 | a | 56.97 | 45.97 | 64.99 | ||||||||||||
1982 | 40.10 | 41.64 | 49.58 | 59.80 | 67.94 | 81.07 | 84.94 | 81.84 | 76.10 | 62.10 | ----- | z | 41.21 | b | 62.39 | a | ||||||||||
1983 | 41.27 | e | 63.27 | m | 49.11 | d | 54.03 | 67.59 | b | 79.00 | 85.65 | 83.07 | b | 80.07 | 65.61 | 51.14 | a | 43.00 | 63.59 | a | ||||||
1984 | 38.61 | 45.76 | 52.29 | 55.93 | 77.45 | 80.73 | 86.30 | a | 82.84 | 78.27 | 56.55 | 52.48 | a | 41.74 | 62.41 | |||||||||||
1985 | 39.52 | 42.59 | a | 52.23 | 64.40 | 72.07 | a | 83.37 | 88.10 | a | 86.84 | 73.17 | a | 64.48 | 49.30 | 43.77 | 63.32 | |||||||||
1986 | 48.84 | 48.46 | 56.35 | 62.27 | o | 69.83 | b | 81.52 | a | 82.06 | 85.60 | a | 72.67 | 59.90 | 48.87 | 40.45 | b | 63.14 | a | |||||||
1987 | ----- | z | 43.00 | 47.84 | 62.60 | 69.00 | 82.78 | c | 85.58 | 80.71 | 76.90 | 67.48 | 47.53 | 40.87 | 64.03 | a | ||||||||||
1988 | 34.00 | 43.00 | 51.52 | 58.97 | a | 70.52 | 82.21 | a | 86.45 | 82.10 | a | 74.93 | a | 71.00 | 51.57 | 39.29 | 62.13 | |||||||||
1989 | 37.71 | 44.07 | 59.71 | 69.97 | a | 74.81 | 82.20 | 89.23 | a | 82.81 | 79.63 | 65.19 | 52.53 | 41.97 | a | 64.99 | ||||||||||
1990 | 39.84 | 41.54 | 53.10 | 62.43 | 69.48 | ----- | z | 85.52 | 82.26 | 74.93 | 63.93 | a | 50.63 | 33.16 | 59.71 | a | ||||||||||
1991 | 32.61 | 44.46 | 48.58 | 59.90 | 70.97 | 78.38 | a | 85.13 | 83.31 | b | 76.00 | 67.84 | 46.50 | 32.94 | 60.55 | |||||||||||
1992 | 31.81 | 42.66 | 52.06 | 65.62 | a | 69.42 | 77.17 | a | 82.52 | 82.06 | 76.63 | 66.74 | 43.03 | 33.42 | 60.26 | |||||||||||
1993 | 40.55 | b | 43.25 | 53.32 | 60.70 | 71.23 | 80.70 | 86.84 | 82.48 | 76.33 | 62.39 | 46.20 | 40.71 | 62.06 | ||||||||||||
1994 | 44.87 | 42.30 | a | 55.43 | a | 60.17 | 70.42 | 86.43 | 89.61 | 87.00 | 77.90 | 62.23 | 46.86 | a | 41.68 | 63.74 | ||||||||||
1995 | 38.17 | a | 52.57 | 53.00 | 56.37 | 64.97 | 79.21 | a | 86.53 | a | 86.29 | 79.00 | 65.26 | 56.20 | 43.87 | 63.45 | ||||||||||
1996 | 43.87 | 49.41 | 52.10 | 62.10 | 76.27 | a | 85.07 | a | 88.29 | 86.19 | 72.83 | 63.42 | 50.14 | b | ----- | z | 66.34 | a | ||||||||
1997 | 36.90 | 44.43 | 58.10 | ----- | z | 74.84 | 84.20 | 87.77 | 83.03 | 59.62 | q | 69.57 | a | 54.17 | 38.48 | 63.15 | b | |||||||||
1998 | 42.17 | a | 40.76 | k | 45.43 | j | 52.83 | g | 70.05 | i | 80.78 | l | 86.32 | i | 87.21 | q | 81.80 | o | 65.60 | a | 52.62 | d | 39.71 | g | 53.46 | i |
1999 | 48.57 | j | 50.65 | e | 60.75 | g | 60.05 | h | 67.88 | g | 86.67 | u | 84.40 | p | 82.38 | r | 76.09 | h | 70.17 | h | 60.69 | d | 44.24 | f | 55.67 | j |
2000 | 49.72 | m | 53.05 | j | 53.42 | e | 71.85 | q | ----- | z | 88.58 | k | 92.21 | q | 87.27 | p | 79.44 | l | 64.88 | g | 47.76 | m | 51.33 | m | 53.42 | k |
2001 | 39.39 | m | 47.89 | i | 50.17 | y | 70.00 | t | 76.41 | n | 90.60 | y | 88.22 | v | 81.30 | u | 83.00 | o | 71.42 | l | 57.12 | m | 45.25 | w | ----- | z |
2002 | 47.73 | t | 47.09 | q | 65.38 | w | 71.50 | x | ----- | z | ----- | z | ----- | z | ----- | z | 76.75 | j | 65.17 | m | 65.59 | m | ----- | z | ----- | z |
2003 | 47.08 | r | 45.22 | s | ----- | z | 63.80 | t | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2004 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2005 | ----- | z | 48.67 | s | 53.48 | j | 66.42 | r | 67.35 | h | 80.30 | 88.96 | d | 83.35 | 79.37 | 65.60 | a | 54.03 | 44.48 | b | 70.87 | e | ||||
2006 | 47.48 | 49.64 | 50.83 | b | 65.20 | ----- | z | 86.62 | a | 88.13 | 82.86 | b | 73.93 | 62.65 | 56.43 | 41.19 | 64.09 | a | ||||||||
2007 | 35.73 | a | 47.85 | a | ----- | z | 65.00 | i | 72.65 | 85.28 | a | 90.65 | 84.42 | 79.28 | a | 68.13 | a | 59.80 | 45.50 | m | 69.31 | c | ||||
2008 | 39.05 | i | 41.42 | e | 54.47 | a | 61.50 | 70.19 | 83.55 | a | 87.48 | 85.74 | d | 78.63 | k | 67.81 | d | 58.96 | c | 43.55 | b | 65.47 | b | |||
2009 | 43.81 | d | 48.69 | b | 56.93 | a | ----- | z | 74.81 | 77.60 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.37 | g | ||
2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 82.73 | h | 87.32 | 80.25 | s | ----- | z | ----- | z | ----- | z | ----- | z | 87.32 | k | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 40.86 | 45.87 | 52.54 | 61.57 | 70.93 | 82.42 | 86.45 | 83.69 | 77.16 | 65.70 | 52.80 | 41.67 | 62.93 | |||||||||||||
S.D. | 4.29 | 3.86 | 4.19 | 3.78 | 3.31 | 2.95 | 2.87 | 2.55 | 2.83 | 3.79 | 6.00 | 4.10 | 1.53 | |||||||||||||
SKEW | 0.04 | 0.37 | 0.25 | -0.10 | 0.19 | 0.11 | -1.86 | -1.66 | -0.06 | -0.03 | 1.44 | 0.12 | -0.06 | |||||||||||||
MAX | 48.84 | 55.11 | 62.61 | 70.11 | 77.54 | 88.21 | 90.65 | 87.26 | 82.47 | 72.94 | 77.60 | 52.48 | 65.76 | |||||||||||||
MIN | 31.81 | 39.22 | 43.77 | 53.80 | 63.58 | 77.17 | 73.94 | 72.97 | 70.40 | 56.55 | 43.03 | 32.94 | 60.26 | |||||||||||||
YRS | 47 | 45 | 44 | 45 | 44 | 48 | 44 | 48 | 49 | 51 | 49 | 41 | 19 |