YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1966 | ----- | z | 52.36 | 68.67 | a | 75.60 | 84.48 | 87.24 | a | 99.67 | v | 80.20 | p | 85.21 | b | 74.94 | 67.63 | 51.67 | d | 71.98 | c | |||||
1967 | ----- | z | ----- | z | ----- | z | ----- | z | 82.33 | y | 88.50 | 92.00 | 87.35 | 82.73 | 78.61 | 63.73 | 45.32 | 76.89 | e | |||||||
1968 | 51.97 | a | 57.62 | 62.54 | e | 69.57 | 80.77 | 94.03 | 90.30 | a | 89.45 | 84.57 | 78.87 | 59.87 | 57.55 | 73.09 | ||||||||||
1969 | 61.61 | 59.82 | 57.68 | 74.43 | 82.06 | 86.70 | 95.68 | 93.13 | a | 83.00 | 69.26 | 63.13 | 56.00 | 73.54 | ||||||||||||
1970 | 50.90 | 61.79 | 61.06 | 71.43 | 84.03 | 87.80 | 92.13 | 92.94 | 82.90 | 68.68 | 64.53 | 58.39 | 73.05 | |||||||||||||
1971 | 54.55 | 57.43 | 68.68 | 73.57 | 81.45 | 93.80 | 91.45 | 85.29 | 81.00 | 71.71 | 63.07 | 50.03 | 72.67 | |||||||||||||
1972 | 56.81 | 63.14 | 71.90 | 78.17 | 81.68 | 91.23 | 90.00 | 87.03 | 81.73 | 71.58 | 51.13 | 53.35 | 73.15 | |||||||||||||
1973 | 47.90 | 53.14 | 60.39 | 65.30 | 79.55 | 90.47 | 91.39 | 93.19 | 84.03 | 78.97 | 67.93 | 55.61 | 72.32 | |||||||||||||
1974 | 54.77 | 60.61 | 72.42 | 75.17 | 90.26 | 94.57 | 94.35 | 88.52 | 79.37 | 72.03 | 59.80 | 50.94 | 74.40 | |||||||||||||
1975 | 52.97 | 53.46 | 65.32 | 71.13 | 81.16 | 91.30 | 88.48 | 92.71 | 81.17 | 77.16 | 63.77 | 57.94 | 73.05 | |||||||||||||
1976 | 55.55 | 64.28 | 65.63 | a | 74.27 | 79.55 | 90.67 | 88.84 | 90.61 | 83.80 | 69.65 | 59.13 | 55.42 | 73.12 | ||||||||||||
1977 | 48.71 | 60.11 | 62.77 | 72.33 | 82.55 | 94.77 | 94.81 | 92.26 | 88.10 | 76.58 | 65.40 | 59.06 | 74.79 | |||||||||||||
1978 | 48.19 | 51.86 | 65.42 | 77.77 | 81.48 | 90.87 | 94.97 | 91.50 | a | 81.80 | 76.71 | 57.13 | 47.26 | 72.08 | ||||||||||||
1979 | 42.61 | 55.82 | 63.55 | 71.17 | 79.68 | 86.60 | 93.94 | 88.77 | a | 86.73 | 81.35 | 54.93 | 56.58 | 71.81 | ||||||||||||
1980 | 53.55 | 56.46 | a | 62.35 | 70.07 | 77.39 | 97.50 | 99.10 | 91.84 | 85.07 | 74.52 | 60.00 | 63.16 | 74.25 | ||||||||||||
1981 | 55.52 | 63.54 | 61.58 | 79.07 | 81.06 | 95.10 | 94.45 | 87.94 | 83.97 | 72.32 | 66.60 | 60.23 | 75.11 | |||||||||||||
1982 | 54.87 | 55.26 | a | 65.97 | a | 73.14 | a | 81.00 | 89.20 | 93.41 | b | 91.00 | 84.82 | b | 72.97 | a | 58.97 | 47.48 | 72.34 | |||||||
1983 | 53.35 | 54.36 | 62.55 | 67.27 | 79.23 | 89.86 | a | 95.10 | 94.48 | 89.52 | a | 74.74 | 63.87 | 46.06 | 72.53 | |||||||||||
1984 | 50.67 | a | 61.03 | 64.48 | 71.52 | a | 85.16 | 89.47 | 92.65 | 88.35 | 83.60 | 67.71 | 57.47 | 50.29 | 71.87 | |||||||||||
1985 | 45.31 | b | 54.86 | 64.68 | 75.17 | 81.42 | 90.10 | 92.65 | 93.03 | 82.70 | 72.94 | 62.80 | 53.97 | 72.47 | ||||||||||||
1986 | 62.29 | 55.79 | 69.06 | 75.83 | 80.65 | 86.57 | 93.58 | 90.97 | 82.73 | 70.61 | 57.77 | 48.81 | 72.89 | |||||||||||||
1987 | 49.23 | 54.61 | 61.77 | 73.30 | 78.71 | 88.50 | 93.68 | 89.42 | 83.97 | 78.23 | 62.23 | 50.16 | 71.98 | |||||||||||||
1988 | 48.32 | 60.90 | 65.94 | 73.53 | 80.90 | 89.47 | 90.94 | 88.58 | 82.57 | 78.84 | 64.37 | 51.33 | a | 72.97 | ||||||||||||
1989 | 56.58 | 51.64 | 73.77 | 79.90 | 89.97 | 90.37 | 94.55 | 89.29 | 81.75 | v | 77.80 | k | 70.11 | b | 51.86 | c | 74.80 | b | ||||||||
1990 | 57.17 | a | 52.47 | m | 66.67 | v | 74.11 | k | 79.53 | a | 97.67 | 87.79 | b | 85.46 | c | 83.03 | a | 75.00 | b | 65.72 | e | 49.40 | f | 78.92 | d | |
1991 | 50.10 | b | 59.81 | b | 63.67 | a | 75.00 | c | 83.44 | f | 88.67 | f | 86.74 | d | 85.48 | 77.20 | e | 77.56 | d | 54.13 | g | 49.66 | b | 69.47 | c | |
1992 | 48.38 | b | 59.04 | c | 68.05 | j | 76.48 | i | 76.04 | f | 86.74 | c | 91.78 | d | 90.62 | b | 86.36 | b | 77.38 | b | 56.89 | b | 50.28 | b | 71.94 | c |
1993 | 52.25 | c | 54.40 | c | 64.59 | d | 72.85 | c | 81.00 | e | 89.96 | f | 100.27 | e | 102.19 | 79.29 | m | 72.33 | j | 59.81 | d | 54.89 | c | 71.36 | c | |
1994 | 54.15 | d | 59.09 | e | 65.94 | o | 73.54 | b | 80.46 | e | 100.20 | o | 94.29 | 93.47 | a | 86.18 | b | 72.26 | h | 62.00 | f | 56.70 | a | 74.73 | d | |
1995 | 52.17 | b | 66.62 | g | 65.20 | f | 69.71 | m | 78.72 | f | 87.81 | d | 94.18 | i | 94.74 | h | 84.00 | i | 78.45 | k | 71.19 | i | 54.61 | c | 64.86 | i |
1996 | 56.19 | d | 60.07 | a | 64.73 | a | 75.62 | f | 90.85 | d | 93.75 | f | 91.42 | 89.12 | f | 81.32 | e | 73.88 | f | 61.79 | b | 58.13 | a | 70.56 | d | |
1997 | 47.84 | f | 51.58 | d | 68.97 | b | 61.52 | a | 77.77 | e | 86.23 | h | 93.62 | g | 88.88 | f | 84.47 | m | 73.69 | b | 58.04 | c | 45.14 | c | 62.39 | e |
1998 | 55.33 | a | 53.75 | d | 61.18 | c | 69.23 | d | 86.83 | g | 93.50 | b | 97.00 | g | 89.50 | e | 91.05 | h | 73.00 | g | 63.68 | b | 54.96 | c | 67.64 | d |
1999 | 59.65 | e | 65.77 | b | 65.88 | f | 71.40 | e | ----- | z | ----- | z | ----- | z | ----- | z | 83.45 | j | 76.81 | j | 69.73 | 52.77 | e | 63.87 | g | |
2000 | 59.56 | f | 67.00 | g | 67.46 | e | 78.22 | g | 88.60 | f | 89.38 | d | 94.54 | g | 94.19 | d | 92.04 | d | 69.89 | c | 52.43 | b | 48.21 | b | 73.37 | e |
2001 | 45.78 | d | 57.25 | d | 61.64 | f | 76.54 | b | 82.52 | f | 94.08 | f | 97.35 | e | 91.39 | c | 86.10 | i | 78.25 | k | 63.92 | e | 54.70 | d | 69.56 | e |
2002 | 54.48 | d | 56.12 | d | 65.91 | i | 80.60 | j | 86.57 | h | 95.12 | d | 93.04 | d | 95.12 | g | 83.39 | g | 70.04 | g | 59.54 | f | 56.75 | k | 74.69 | h |
2003 | 58.24 | n | 59.00 | f | 66.90 | k | 75.84 | k | 87.57 | j | 88.54 | f | 97.45 | k | 93.08 | e | 84.92 | f | 78.41 | i | 61.59 | c | 57.64 | f | 77.33 | j |
2004 | 56.80 | f | 51.65 | l | 68.96 | d | 70.81 | i | 87.41 | i | 94.33 | l | 93.38 | j | 89.05 | k | 82.68 | e | 71.69 | e | 56.30 | g | 55.72 | f | 74.45 | i |
2005 | 58.86 | j | 55.29 | g | 61.04 | h | 72.62 | i | 80.17 | h | 92.74 | g | 96.04 | f | 88.85 | k | 87.91 | g | 74.24 | j | 65.57 | g | 56.48 | d | 56.48 | k |
2006 | 59.29 | j | 59.33 | j | 64.95 | j | 79.95 | h | 87.95 | i | 94.73 | d | 94.92 | f | 88.77 | e | 79.70 | g | 73.37 | l | 64.30 | j | 53.61 | h | 91.75 | j |
2007 | 42.11 | c | 55.29 | n | 70.47 | l | 68.80 | t | 78.76 | f | 89.62 | f | 94.17 | h | 95.00 | f | 87.04 | g | 79.70 | h | 66.95 | h | 46.74 | h | 42.11 | k |
2008 | 51.48 | d | 60.20 | d | 67.04 | g | 78.12 | m | 82.15 | e | 95.77 | h | 88.88 | g | 88.96 | g | 82.75 | b | ----- | z | 62.52 | i | 57.21 | g | 69.15 | h |
2009 | 60.36 | f | 63.78 | e | ----- | z | ----- | z | 83.92 | s | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 63.78 | k |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 52.44 | 57.74 | 65.26 | 72.96 | 81.93 | 90.96 | 92.94 | 90.66 | 83.76 | 74.28 | 61.73 | 53.19 | 73.02 | |||||||||||||
S.D. | 4.75 | 3.96 | 3.79 | 3.95 | 3.40 | 3.27 | 3.02 | 3.30 | 2.87 | 3.67 | 4.50 | 4.44 | 0.94 | |||||||||||||
SKEW | -0.16 | 0.18 | 0.42 | -0.76 | 1.47 | 0.46 | 0.22 | 1.02 | 0.66 | 0.01 | -0.31 | 0.01 | 0.80 | |||||||||||||
MAX | 62.29 | 65.77 | 73.77 | 79.90 | 90.85 | 97.67 | 100.27 | 102.19 | 92.04 | 81.35 | 70.11 | 63.16 | 75.11 | |||||||||||||
MIN | 42.11 | 51.58 | 57.68 | 61.52 | 77.39 | 86.57 | 86.74 | 85.29 | 77.20 | 67.71 | 51.13 | 45.14 | 71.81 | |||||||||||||
YRS | 35 | 35 | 30 | 30 | 29 | 31 | 31 | 33 | 31 | 29 | 34 | 36 | 21 |