YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1951 | ----- | z | ----- | z | ----- | z | ----- | z | 89.64 | x | 83.58 | 92.29 | 87.61 | 83.58 | 73.69 | 59.00 | 52.18 | 75.99 | e | |||||||
1952 | 51.21 | 53.67 | 55.15 | 68.47 | 80.98 | 85.43 | 89.97 | 89.48 | a | 84.37 | 76.44 | 56.43 | 50.34 | 70.16 | ||||||||||||
1953 | 54.31 | 54.17 | a | 62.29 | 66.79 | b | 70.08 | 84.05 | 87.98 | a | 87.15 | 82.82 | 71.00 | 61.18 | b | 48.31 | 69.18 | |||||||||
1954 | 52.55 | 61.09 | 59.29 | 72.92 | 76.42 | 82.63 | 88.82 | 83.71 | 83.60 | 73.97 | 63.31 | i | 53.68 | 71.70 | a | |||||||||||
1955 | 48.05 | 49.15 | a | 60.13 | 65.65 | 74.05 | 81.83 | 84.94 | 82.00 | 81.77 | 75.50 | 60.24 | a | 54.66 | 68.16 | |||||||||||
1956 | 56.02 | 49.32 | a | 63.00 | 66.50 | 76.44 | 86.02 | 87.23 | 85.47 | 86.03 | 72.39 | 57.10 | 52.47 | 69.83 | ||||||||||||
1957 | 54.55 | b | 62.09 | 62.42 | 66.98 | 72.95 | 86.45 | 90.73 | 87.08 | a | 83.95 | 69.69 | 55.20 | 53.31 | 70.45 | |||||||||||
1958 | 51.32 | 56.41 | 55.82 | 66.30 | 80.61 | 86.22 | 90.43 | b | 88.16 | 83.52 | 73.42 | 59.62 | 56.34 | 70.68 | ||||||||||||
1959 | 53.85 | 50.95 | 61.52 | c | 72.18 | 74.76 | 89.28 | 91.29 | 85.68 | 83.27 | 73.88 | a | 59.95 | 52.03 | 70.72 | |||||||||||
1960 | 46.77 | a | 49.93 | 62.73 | 69.12 | 75.68 | 89.45 | 91.47 | 90.73 | 86.62 | 71.63 | 62.00 | 50.97 | 70.59 | ||||||||||||
1961 | 54.15 | a | 57.72 | a | 61.74 | 70.08 | 77.23 | 89.03 | 91.16 | 87.05 | 82.10 | 72.31 | 57.23 | 52.47 | 71.02 | |||||||||||
1962 | 49.85 | 58.12 | 57.50 | 71.23 | 72.19 | e | 82.87 | 89.48 | 92.26 | 85.38 | 73.19 | 64.58 | 54.83 | a | 70.96 | |||||||||||
1963 | 49.19 | 60.57 | 61.32 | 66.80 | 81.18 | 82.67 | 92.71 | b | 86.23 | a | 85.62 | a | 77.27 | 61.42 | 51.98 | 71.41 | ||||||||||
1964 | 47.98 | 50.16 | 57.90 | 66.60 | 76.34 | 84.00 | 91.26 | 85.35 | 81.03 | 76.68 | a | 57.07 | 53.58 | 69.00 | ||||||||||||
1965 | 52.79 | b | 53.25 | 58.10 | 67.38 | 73.84 | 80.08 | 90.21 | 89.82 | 81.22 | 74.92 | 64.88 | 51.79 | 69.86 | ||||||||||||
1966 | 48.18 | 50.09 | a | 62.55 | a | 70.25 | 79.15 | 86.03 | 91.15 | 89.03 | 82.91 | a | 72.06 | 62.77 | 52.10 | 70.52 | ||||||||||
1967 | 50.79 | 56.89 | 64.45 | 63.68 | 74.85 | 82.37 | 89.84 | 87.26 | ----- | z | ----- | z | ----- | z | ----- | z | 71.27 | d | ||||||||
1968 | 52.68 | l | 58.64 | 59.61 | 64.53 | a | ----- | z | 81.81 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.93 | i | ||
1969 | ----- | z | ----- | z | ----- | z | ----- | z | 73.71 | c | ----- | z | ----- | z | ----- | z | 83.32 | s | 67.82 | 59.48 | 54.77 | 63.95 | h | |||
1970 | 50.48 | a | 57.70 | 57.44 | 63.05 | 78.27 | c | ----- | z | ----- | z | ----- | z | 79.48 | b | 67.13 | 61.71 | a | 50.24 | 62.83 | c | |||||
1971 | 50.82 | 54.19 | b | 61.42 | 64.87 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 49.69 | b | 56.20 | g | |||
1972 | 51.15 | 58.28 | 68.21 | 69.55 | 75.63 | 84.36 | a | 90.18 | a | 85.00 | 80.65 | 67.92 | 54.03 | a | 47.22 | a | 69.35 | |||||||||
1973 | 47.52 | a | 53.24 | c | 52.52 | 62.88 | 76.44 | 83.02 | 88.31 | 88.73 | 82.23 | 72.45 | 59.05 | 52.58 | 68.25 | |||||||||||
1974 | 50.61 | 53.33 | a | 62.23 | a | 69.70 | 77.48 | 90.10 | 88.27 | ----- | z | 82.67 | 74.50 | 59.80 | 47.03 | 68.70 | a | |||||||||
1975 | 50.26 | ----- | z | ----- | z | ----- | z | 76.83 | g | 84.40 | 89.98 | 89.52 | 86.15 | 74.74 | 59.95 | i | 53.19 | 75.46 | e | |||||||
1976 | 55.98 | 57.43 | 59.03 | m | 70.90 | 80.18 | 85.08 | 89.21 | 87.05 | k | 81.21 | f | 75.89 | 67.90 | 56.97 | 71.06 | c | |||||||||
1977 | 52.81 | 59.80 | 60.73 | 71.60 | a | 75.35 | 89.27 | 92.21 | 90.52 | ----- | z | ----- | z | 67.10 | 59.21 | 71.86 | b | |||||||||
1978 | 56.42 | 53.16 | 63.63 | 68.11 | l | 74.31 | 86.13 | 89.42 | 88.60 | 83.05 | a | 76.85 | 59.15 | 49.15 | 70.90 | a | ||||||||||
1979 | 47.92 | 54.25 | 57.55 | 67.15 | ----- | z | 85.15 | 89.52 | 84.66 | 84.65 | 72.42 | 56.15 | 54.21 | 68.51 | a | |||||||||||
1980 | 54.77 | 58.34 | 59.08 | 67.67 | 73.00 | 86.68 | 91.98 | 88.87 | 84.43 | 72.15 | 61.85 | 58.35 | 71.43 | |||||||||||||
1981 | 56.40 | 58.59 | 60.40 | 71.55 | a | 75.92 | 88.25 | 89.73 | 89.10 | 83.17 | 70.40 | 62.45 | 55.47 | 71.79 | ||||||||||||
1982 | 52.42 | 56.82 | 59.50 | 68.05 | 75.16 | 82.33 | 88.98 | 88.84 | 82.48 | 69.19 | 59.41 | b | 51.28 | a | 69.54 | |||||||||||
1983 | 53.17 | a | 55.61 | a | 59.40 | 61.48 | 76.05 | 83.37 | c | 89.97 | 87.22 | a | 85.53 | 71.95 | a | 59.50 | 54.21 | 69.79 | ||||||||
1984 | 52.31 | 54.39 | b | 62.87 | 66.90 | 81.06 | 82.66 | a | 86.94 | 86.47 | 83.47 | 68.81 | 59.16 | a | 51.05 | 69.67 | ||||||||||
1985 | 51.03 | 53.82 | 61.08 | 72.35 | 78.95 | 88.47 | 91.60 | 90.34 | 79.43 | 71.15 | 57.89 | b | 51.67 | a | 70.65 | |||||||||||
1986 | 56.85 | 58.35 | a | 63.50 | d | 68.76 | a | 76.03 | 85.57 | a | 86.63 | 88.82 | 79.32 | 68.95 | 59.28 | 51.17 | a | 70.27 | ||||||||
1987 | 50.52 | a | 55.92 | b | 58.60 | a | 71.02 | a | 75.15 | d | 86.48 | 86.40 | 86.78 | b | 81.00 | 75.10 | 57.93 | 49.22 | a | 69.51 | ||||||
1988 | 50.57 | b | 57.88 | 60.69 | 67.60 | 75.16 | 87.00 | 90.00 | 87.37 | 79.80 | 75.68 | a | 58.65 | 50.69 | 70.09 | |||||||||||
1989 | 49.58 | 58.13 | a | 65.13 | 74.18 | 77.79 | 83.78 | 90.60 | 86.63 | 80.59 | b | 70.20 | a | 60.77 | 50.47 | 70.65 | ||||||||||
1990 | 50.71 | b | 51.96 | b | 62.42 | a | 70.21 | b | 76.45 | 88.28 | 88.67 | h | 83.06 | 79.97 | a | 69.29 | 58.19 | a | 49.27 | a | 67.26 | a | ||||
1991 | 51.27 | e | 57.39 | a | 53.55 | c | 62.71 | a | ----- | z | 80.06 | v | 88.24 | 87.73 | 82.33 | a | 73.77 | 57.22 | a | 52.73 | 66.69 | b | ||||
1992 | 51.05 | 55.98 | 58.50 | a | 68.73 | 75.47 | 82.63 | 85.85 | 85.12 | a | 83.53 | 72.71 | 54.32 | 48.77 | a | 68.56 | ||||||||||
1993 | 54.69 | 53.63 | b | 60.45 | 67.64 | a | 77.41 | b | 83.71 | a | 86.80 | a | 85.81 | 80.05 | 70.82 | 56.98 | 50.47 | 69.04 | ||||||||
1994 | 51.58 | a | 52.64 | 62.10 | 68.85 | 74.34 | 87.67 | a | 90.77 | 91.45 | a | 84.06 | c | 69.48 | 54.23 | b | 51.84 | c | 69.92 | |||||||
1995 | 51.10 | 58.68 | ----- | z | 65.36 | a | 73.32 | a | 82.18 | 89.21 | 91.21 | c | 84.75 | 72.61 | 62.55 | 54.06 | 71.37 | a | ||||||||
1996 | 52.45 | 60.77 | a | 60.63 | a | 69.33 | a | 78.98 | 86.03 | 88.48 | a | 88.08 | 76.93 | a | 71.35 | a | 61.13 | 53.20 | a | 70.61 | ||||||
1997 | 57.14 | q | 54.21 | 65.85 | 66.75 | 82.29 | 84.10 | 88.29 | ----- | z | 86.29 | a | 70.63 | 61.13 | 49.50 | 70.91 | b | |||||||||
1998 | 52.55 | 51.92 | c | 57.27 | 60.60 | a | 73.00 | 81.87 | 91.68 | 90.37 | 84.10 | a | 71.26 | 58.93 | 51.66 | b | 68.77 | |||||||||
1999 | 52.79 | 58.76 | a | 61.97 | b | 67.43 | c | 73.85 | g | 84.58 | 89.16 | ----- | z | 84.22 | e | ----- | z | 59.50 | n | 50.65 | 68.69 | d | ||||
2000 | 53.97 | b | 57.05 | a | 60.93 | a | 73.07 | 81.87 | a | 87.50 | a | 91.21 | 89.85 | a | 86.95 | 71.78 | a | 52.35 | 52.92 | a | 71.62 | |||||
2001 | 49.90 | 51.16 | 60.66 | 68.33 | 78.84 | b | 87.07 | b | 90.26 | f | 88.43 | b | 86.43 | b | 75.26 | 64.69 | a | 49.28 | f | 71.08 | b | |||||
2002 | 52.52 | f | 62.60 | w | 64.79 | b | 73.64 | a | 77.21 | 89.53 | 91.61 | 91.45 | 85.65 | 71.56 | ----- | z | 52.30 | f | 80.68 | d | ||||||
2003 | 58.05 | k | 57.00 | h | 60.17 | j | 68.29 | i | 78.00 | g | 86.40 | 93.74 | j | 91.60 | a | 85.31 | n | 77.91 | o | 59.64 | b | 51.81 | g | 79.21 | i | |
2004 | 52.76 | h | 52.75 | i | 68.22 | f | 71.08 | j | 79.32 | c | 86.60 | 90.48 | d | 89.26 | l | 83.76 | a | 71.17 | e | 58.74 | e | 52.20 | a | 74.61 | e | |
2005 | 55.17 | g | 57.00 | 59.71 | j | 69.50 | 78.02 | e | ----- | z | 93.31 | j | 88.02 | b | 84.37 | ----- | z | ----- | z | ----- | z | 75.38 | g | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 51.81 | 55.56 | 60.61 | 68.10 | 76.57 | 85.35 | 89.63 | 87.91 | 83.11 | 72.36 | 59.58 | 52.17 | 70.06 | |||||||||||||
S.D. | 2.51 | 3.34 | 3.07 | 3.17 | 2.76 | 2.48 | 1.82 | 2.36 | 2.28 | 2.55 | 3.24 | 2.58 | 0.96 | |||||||||||||
SKEW | 0.15 | -0.19 | -0.32 | -0.26 | 0.18 | 0.12 | -0.57 | -0.31 | -0.45 | 0.03 | 0.30 | 0.48 | -0.20 | |||||||||||||
MAX | 56.85 | 62.09 | 68.21 | 74.18 | 82.29 | 90.10 | 92.71 | 92.26 | 86.95 | 77.27 | 67.90 | 59.21 | 71.79 | |||||||||||||
MIN | 46.77 | 49.15 | 52.52 | 60.60 | 70.08 | 80.08 | 84.94 | 82.00 | 76.93 | 67.13 | 52.35 | 47.03 | 68.16 | |||||||||||||
YRS | 47 | 49 | 47 | 49 | 47 | 49 | 47 | 46 | 48 | 48 | 47 | 49 | 32 |