YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.17 | 33.48 | 41.83 | j | ||
1961 | 39.84 | 51.32 | 55.27 | a | 62.00 | 72.10 | 89.60 | 94.03 | 95.77 | 75.03 | 63.29 | 43.97 | 38.45 | 65.06 | ||||||||||||
1962 | 37.68 | 45.71 | 52.23 | 68.20 | 66.17 | m | 82.50 | 90.82 | c | 85.41 | b | 82.03 | 61.40 | a | 50.43 | 41.80 | a | 63.47 | a | |||||||
1963 | 33.67 | a | 45.86 | 56.68 | 59.93 | a | 73.87 | 81.31 | a | 86.03 | a | 88.96 | e | 85.97 | 68.59 | b | 50.75 | b | 34.47 | a | 63.84 | |||||
1964 | 42.26 | 48.55 | 53.52 | 62.67 | 72.61 | 80.63 | 90.87 | 83.50 | e | 76.97 | 66.94 | 42.80 | 32.48 | 62.82 | ||||||||||||
1965 | 35.68 | 48.54 | 55.48 | 67.47 | 73.38 | b | 83.03 | a | 92.61 | 88.97 | 76.57 | b | 72.36 | c | 51.00 | 40.26 | 65.45 | |||||||||
1966 | 39.82 | c | 49.12 | c | 57.52 | 67.47 | 79.52 | 80.60 | 87.97 | 89.58 | 83.17 | 65.06 | 51.67 | 43.61 | 66.26 | |||||||||||
1967 | 46.16 | 52.68 | 54.45 | 58.93 | a | 74.10 | b | 86.87 | 93.81 | 97.68 | 88.15 | j | 67.10 | 49.67 | 40.10 | 65.59 | a | |||||||||
1968 | 42.68 | 53.75 | a | 60.13 | 64.40 | 75.71 | 83.57 | 94.42 | 82.71 | c | 80.58 | d | 62.10 | 47.30 | c | 37.63 | d | 65.41 | ||||||||
1969 | 24.16 | 36.86 | 55.55 | 63.70 | 77.81 | 91.54 | q | 92.44 | o | 87.37 | a | 80.57 | g | 62.94 | 49.87 | 38.32 | 55.17 | c | ||||||||
1970 | 37.26 | 47.79 | 55.35 | 60.21 | a | 75.65 | 88.67 | 94.24 | b | 91.10 | 74.89 | b | 62.90 | 48.20 | 39.45 | 64.64 | ||||||||||
1971 | 44.00 | 48.79 | 50.87 | 64.13 | 77.26 | 76.40 | 91.48 | b | 93.71 | 73.61 | b | 57.06 | m | 49.27 | 37.60 | a | 64.28 | a | ||||||||
1972 | 38.82 | c | 44.74 | b | 58.48 | b | 61.20 | 76.97 | 83.00 | d | 88.81 | 90.90 | a | 74.73 | 66.95 | j | 47.60 | e | 34.32 | 63.60 | a | |||||
1973 | 38.48 | 46.43 | 57.45 | b | 66.90 | 77.41 | d | 82.30 | 91.66 | b | 88.03 | 79.96 | b | 64.32 | c | 44.32 | h | 43.11 | d | 66.91 | a | |||||
1974 | 35.32 | 50.14 | 55.74 | 64.00 | 69.61 | c | 86.54 | d | 87.81 | 89.29 | 84.19 | d | 67.86 | b | 49.65 | d | 44.71 | 65.41 | ||||||||
1975 | 37.06 | o | 42.46 | 52.24 | b | 60.89 | b | 74.55 | 80.89 | c | 92.41 | b | 83.03 | b | 83.13 | 64.66 | b | 48.97 | 41.73 | a | 65.91 | a | ||||
1976 | 41.85 | d | 47.67 | b | 54.03 | 63.60 | 75.84 | 78.43 | b | 86.59 | b | 82.75 | g | 84.21 | b | 67.11 | c | 50.82 | b | 39.85 | e | 62.73 | a | |||
1977 | 28.12 | e | 49.86 | 55.75 | g | 72.53 | 70.00 | a | 85.42 | d | 89.08 | e | 90.67 | d | 72.36 | e | 66.23 | i | 47.57 | 41.03 | 64.66 | b | ||||
1978 | 36.73 | e | 43.50 | n | 56.48 | h | 63.28 | a | 69.67 | g | 85.32 | k | 90.23 | i | 85.20 | f | 74.59 | h | 64.00 | j | 41.30 | 36.19 | 44.38 | h | ||
1979 | 21.77 | a | 42.79 | 58.22 | h | 63.81 | d | 75.85 | d | 85.71 | f | 90.52 | 88.96 | g | 83.59 | c | 67.94 | 41.70 | 43.13 | a | 59.01 | c | ||||
1980 | 29.74 | 41.38 | 54.16 | 66.35 | j | 72.71 | 76.54 | f | 90.26 | d | 88.38 | o | 79.04 | e | 64.07 | a | 47.46 | d | 41.93 | a | 57.86 | c | ||||
1981 | 41.97 | 45.89 | 58.45 | k | 66.88 | f | 71.87 | 77.83 | g | 87.27 | e | 93.74 | d | 80.54 | f | 64.22 | h | 51.52 | a | 39.40 | a | 61.67 | e | |||
1982 | 35.93 | a | 47.04 | b | 55.40 | f | 60.93 | c | 73.44 | f | 83.05 | k | 90.76 | n | 87.72 | m | 75.05 | i | 62.82 | c | 43.07 | c | ----- | z | 49.96 | g |
1983 | 45.50 | a | 51.88 | c | 57.81 | 60.86 | h | 77.67 | g | 79.04 | g | 86.36 | q | 90.00 | j | 75.75 | j | 65.90 | b | 50.97 | 28.10 | a | 50.02 | f | ||
1984 | 37.60 | a | 46.03 | 57.65 | 61.37 | c | 68.43 | c | 77.29 | i | 92.79 | g | 90.38 | g | 75.62 | d | 64.04 | f | 48.88 | m | 31.07 | b | 53.97 | e | ||
1985 | 28.13 | 39.00 | a | 56.84 | f | 68.79 | f | 72.95 | k | 83.88 | e | 96.15 | e | 85.57 | j | 71.88 | d | 64.41 | i | 31.70 | 23.33 | a | 53.44 | e | ||
1986 | 37.71 | 45.18 | 57.90 | 63.52 | a | 74.86 | b | 86.60 | e | 84.44 | o | 93.29 | j | 72.85 | d | 67.03 | 47.17 | 34.55 | 58.74 | b | ||||||
1987 | 33.59 | b | 47.14 | 57.48 | 70.09 | h | 78.96 | d | 83.38 | d | 87.57 | h | 89.70 | h | 83.97 | 68.75 | g | 50.53 | 36.55 | 58.95 | d | |||||
1988 | 36.23 | 50.48 | 56.32 | 67.54 | b | 74.63 | a | 76.43 | g | 89.45 | i | 88.52 | f | 75.19 | d | 71.42 | g | 50.77 | 35.90 | 55.88 | d | |||||
1989 | 41.73 | e | 33.43 | 51.71 | 68.17 | 70.65 | e | 81.50 | h | 87.67 | g | 85.32 | i | 81.05 | i | 63.52 | 51.88 | d | 36.10 | 52.15 | d | |||||
1990 | 44.48 | b | 48.80 | h | 58.52 | 67.78 | g | 71.85 | k | 79.53 | 91.23 | 90.52 | j | 84.93 | c | 61.07 | d | 52.03 | 32.42 | 63.03 | d | |||||
1991 | 33.97 | 52.50 | 52.89 | c | 63.93 | c | 69.38 | e | 75.20 | 87.62 | e | 87.79 | g | 82.37 | 59.24 | j | 44.87 | 41.15 | e | 60.39 | b | |||||
1992 | 42.32 | 48.52 | 61.77 | 65.52 | a | 78.80 | a | 85.80 | 86.92 | e | 87.50 | g | 75.43 | 65.24 | f | 44.97 | 35.52 | 62.56 | b | |||||||
1993 | 27.13 | 34.79 | 49.69 | b | 60.48 | c | 78.84 | 77.96 | b | 78.97 | b | 84.42 | g | 79.81 | c | 67.16 | 44.20 | 38.13 | 57.92 | a | ||||||
1994 | 45.10 | 42.29 | 59.66 | b | 67.52 | c | 74.71 | 78.45 | h | 91.88 | e | 87.22 | h | 82.73 | d | 63.29 | 45.37 | c | 40.55 | 61.31 | b | |||||
1995 | 39.63 | d | 50.11 | 55.74 | 63.24 | a | 74.47 | a | 78.93 | a | 87.96 | d | 82.78 | h | 78.77 | d | 61.41 | d | 50.40 | 36.27 | a | 61.54 | a | |||
1996 | 35.97 | a | 40.45 | 54.37 | a | 65.14 | a | 67.74 | 79.63 | 90.38 | b | 89.57 | j | 75.48 | c | 61.74 | 44.10 | 34.35 | 59.03 | a | ||||||
1997 | 37.48 | 45.18 | 55.16 | 61.63 | 75.06 | 76.63 | c | 86.10 | 89.12 | e | 78.97 | 62.87 | 48.27 | 37.68 | 62.85 | |||||||||||
1998 | 41.81 | 50.21 | 56.77 | 64.73 | 72.04 | c | 80.97 | 93.11 | d | 92.61 | h | 83.32 | b | 63.50 | a | 51.30 | 39.90 | 63.42 | a | |||||||
1999 | 44.84 | 49.18 | 56.79 | c | 63.63 | 70.26 | 79.19 | c | 87.68 | c | 87.96 | h | 78.93 | 63.00 | 53.00 | 42.77 | 62.66 | a | ||||||||
2000 | 39.35 | 46.38 | 54.61 | 68.07 | 71.90 | 81.38 | a | 87.81 | 87.05 | i | 74.67 | 62.29 | c | 39.57 | 31.71 | 59.79 | a | |||||||||
2001 | 35.32 | 42.04 | a | 57.16 | 61.14 | b | 76.81 | 77.67 | 87.55 | 89.14 | c | 82.44 | c | 62.71 | 49.48 | c | 41.19 | 63.55 | ||||||||
2002 | 43.23 | 47.21 | 52.00 | 65.07 | 70.11 | c | 82.55 | a | 91.80 | a | 87.00 | c | 79.29 | b | 63.00 | a | 48.97 | 43.37 | a | 64.47 | ||||||
2003 | 42.16 | 48.07 | 58.58 | 62.71 | b | 72.71 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 56.85 | g | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 37.74 | 46.28 | 55.72 | 64.04 | 73.98 | 81.91 | 89.87 | 89.28 | 79.05 | 64.51 | 47.67 | 37.71 | 64.52 | |||||||||||||
S.D. | 5.83 | 4.69 | 2.69 | 2.95 | 3.16 | 3.63 | 3.36 | 3.98 | 4.13 | 2.64 | 4.22 | 4.51 | 1.13 | |||||||||||||
SKEW | -0.88 | -0.93 | -0.14 | 0.60 | -0.10 | 0.24 | -0.75 | 0.22 | -0.08 | 0.98 | -1.58 | -0.89 | -0.24 | |||||||||||||
MAX | 46.16 | 53.75 | 61.77 | 72.53 | 79.52 | 89.60 | 96.15 | 97.68 | 85.97 | 72.36 | 53.00 | 44.71 | 66.26 | |||||||||||||
MIN | 21.77 | 33.43 | 49.69 | 58.93 | 67.74 | 75.20 | 78.97 | 82.71 | 71.88 | 61.07 | 31.70 | 23.33 | 62.82 | |||||||||||||
YRS | 42 | 41 | 37 | 37 | 37 | 31 | 33 | 20 | 35 | 31 | 41 | 42 | 11 |