YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 82.27 | e | 84.19 | ----- | z | ----- | z | ----- | z | 23.90 | 63.46 | i | ||
1962 | 16.12 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 79.25 | w | 79.32 | 67.00 | 59.77 | 41.00 | h | 26.84 | 58.23 | h | ||||
1963 | 13.17 | a | 21.89 | 43.71 | 59.23 | 67.47 | a | 80.37 | 84.92 | g | 78.90 | 72.20 | 69.90 | 45.43 | 18.55 | 51.89 | a | |||||||||
1964 | 30.23 | 30.93 | 35.87 | 57.50 | 73.73 | a | ----- | z | 86.58 | 77.60 | a | 68.20 | 57.65 | 41.72 | a | 22.07 | b | 52.92 | a | |||||||
1965 | 20.65 | 25.96 | c | 31.50 | a | 48.92 | f | ----- | z | ----- | z | ----- | z | 71.83 | s | 60.80 | 61.10 | a | 40.58 | d | ----- | z | 40.10 | f | ||
1966 | 12.44 | d | 27.56 | a | 43.50 | a | 50.20 | 59.77 | i | 78.65 | j | 84.55 | 76.00 | 70.30 | 58.60 | a | 38.21 | a | 26.26 | h | 51.26 | c | ||||
1967 | 24.13 | 21.96 | 40.68 | 53.83 | 64.61 | 75.59 | a | 79.67 | a | 76.57 | a | 71.77 | 57.17 | b | 37.07 | 29.32 | 52.70 | |||||||||
1968 | 22.13 | 26.43 | a | 49.53 | a | 58.93 | a | 65.20 | a | ----- | z | 80.53 | l | 78.84 | 68.47 | 59.35 | 39.30 | 23.39 | 49.16 | b | ||||||
1969 | 18.90 | 28.86 | 34.77 | 56.30 | 69.23 | 69.10 | 80.06 | 83.90 | 70.17 | 51.71 | 40.55 | a | 26.65 | 52.52 | ||||||||||||
1970 | 15.97 | 27.50 | 35.81 | 54.07 | 64.29 | 80.17 | a | 85.58 | 81.42 | 68.93 | a | 56.94 | 37.37 | 24.45 | 52.71 | |||||||||||
1971 | 14.90 | 26.39 | 35.84 | 56.27 | 67.00 | 81.03 | 78.77 | 78.10 | 70.40 | 61.30 | a | 38.33 | 25.81 | 52.85 | ||||||||||||
1972 | 16.58 | 21.76 | 34.35 | 49.37 | 73.48 | 78.77 | 78.00 | 77.45 | 66.00 | 52.06 | 35.93 | 19.39 | 50.26 | |||||||||||||
1973 | 26.10 | 29.96 | 46.26 | 53.83 | 63.52 | 78.10 | 81.42 | 80.10 | 66.97 | 62.65 | 39.67 | 24.29 | 54.40 | |||||||||||||
1974 | 21.13 | 29.25 | 37.10 | 55.53 | 63.71 | 75.63 | 85.23 | 75.48 | 64.53 | 57.61 | 40.24 | a | 30.94 | 53.03 | ||||||||||||
1975 | 23.45 | 27.61 | 33.68 | 47.57 | 72.74 | 76.17 | 84.03 | 78.81 | 65.77 | 60.68 | 44.30 | 24.10 | 53.24 | |||||||||||||
1976 | 19.87 | 34.66 | 37.84 | 60.40 | 70.81 | 83.67 | 86.61 | 83.81 | 72.70 | 52.45 | 34.40 | 17.85 | d | 54.59 | ||||||||||||
1977 | 11.26 | 29.86 | 45.77 | 61.80 | 80.26 | 77.83 | 82.68 | 73.94 | 66.20 | 57.61 | 39.60 | 22.90 | 54.14 | |||||||||||||
1978 | 18.32 | 23.89 | 40.74 | 54.77 | 74.19 | 77.57 | 78.26 | 78.87 | 73.30 | 58.13 | 38.57 | 22.29 | 53.24 | |||||||||||||
1979 | 12.26 | 21.00 | 36.10 | 50.83 | 62.74 | 76.37 | 80.52 | 75.81 | 71.00 | 54.29 | 37.73 | 30.23 | 50.74 | |||||||||||||
1980 | 21.42 | 25.07 | 35.32 | 59.30 | 75.13 | 77.03 | a | 83.81 | 77.80 | a | 65.79 | a | 51.68 | 40.97 | 23.77 | a | 53.09 | |||||||||
1981 | 25.16 | 30.29 | 42.81 | 56.93 | 68.19 | 74.13 | 79.71 | 77.32 | 67.57 | 52.90 | 45.50 | 24.71 | 53.77 | |||||||||||||
1982 | 13.50 | a | 24.61 | 35.77 | 50.93 | 71.97 | a | 71.43 | 80.97 | a | 76.00 | a | 65.67 | 56.10 | 36.13 | 29.48 | d | 51.05 | ||||||||
1983 | 25.39 | 31.18 | 38.26 | 49.07 | a | 64.42 | 75.43 | 82.68 | 80.71 | 68.17 | 54.71 | 37.97 | 12.81 | 51.73 | ||||||||||||
1984 | 20.23 | 34.76 | 33.63 | a | 57.07 | 64.87 | 76.53 | 78.45 | 79.74 | 64.13 | 58.13 | 39.77 | 26.00 | b | 52.78 | |||||||||||
1985 | 19.13 | 24.50 | 43.03 | ----- | z | ----- | z | 72.00 | d | 79.33 | d | 72.82 | c | 65.67 | 56.77 | 31.87 | 15.58 | 48.07 | b | |||||||
1986 | 24.16 | 24.64 | 41.26 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 30.02 | i | |||
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1988 | ----- | z | ----- | z | ----- | z | 57.82 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 57.82 | k |
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 77.27 | a | 79.54 | g | 63.46 | q | 57.61 | 44.62 | a | 24.22 | d | 50.93 | h | |
1991 | 20.34 | b | 34.18 | 44.43 | a | 59.80 | 71.70 | a | 78.19 | d | 78.21 | b | 80.77 | 64.88 | e | 55.80 | a | 31.55 | a | 26.46 | g | 56.35 | a | |||
1992 | 26.58 | 31.96 | a | 39.50 | a | 49.57 | 72.48 | 73.93 | 73.10 | a | 73.90 | b | 68.10 | a | 55.83 | b | 34.34 | a | 27.32 | 52.22 | ||||||
1993 | 23.84 | 26.68 | 40.45 | 53.70 | 66.84 | 72.13 | 77.87 | 79.17 | a | 63.52 | a | 53.83 | h | 34.67 | 26.07 | a | 51.36 | a | ||||||||
1994 | 11.16 | 21.57 | 42.03 | 55.97 | 71.53 | a | 78.83 | 78.13 | 76.29 | 71.12 | d | 59.82 | t | ----- | z | ----- | z | 56.29 | c | |||||||
1995 | 23.23 | a | 25.54 | 41.58 | 47.86 | a | 67.46 | c | 81.57 | g | 81.75 | c | 81.74 | 68.50 | b | 55.37 | a | 30.82 | b | 22.63 | d | 49.68 | a | |||
1996 | 18.07 | b | 26.38 | c | 32.52 | 49.83 | 66.52 | 77.96 | c | 76.77 | i | 79.04 | e | 68.18 | b | 58.69 | b | 31.34 | a | 21.80 | a | 48.21 | a | |||
1997 | 18.61 | 28.89 | 37.85 | d | 53.96 | b | 64.00 | e | 79.78 | c | 78.32 | c | 75.41 | b | 71.19 | c | 59.92 | e | 36.22 | c | ----- | z | 54.92 | a | ||
1998 | ----- | z | 38.44 | a | 37.68 | 59.17 | 75.00 | 71.83 | 79.71 | 79.52 | 74.43 | 58.40 | k | 43.45 | a | 31.48 | 59.07 | b | ||||||||
1999 | 19.76 | b | 34.39 | 41.62 | b | 58.64 | b | 70.50 | c | 75.24 | a | 83.22 | d | 76.42 | e | 68.23 | d | 56.83 | a | 47.29 | b | 30.89 | d | 55.25 | ||
2000 | 23.39 | 34.17 | 47.93 | a | 54.69 | a | 71.00 | c | 73.78 | c | 79.83 | b | 77.93 | d | 69.77 | d | 60.96 | f | 37.23 | 14.71 | 53.13 | a | ||||
2001 | 28.23 | 21.70 | a | 36.84 | 55.71 | f | 68.74 | 75.07 | 81.58 | 80.53 | a | 68.52 | c | 55.26 | 51.00 | a | 32.42 | 54.54 | a | |||||||
2002 | 29.91 | h | 34.29 | 31.55 | 51.57 | 62.16 | 77.60 | 82.26 | 76.71 | g | 70.90 | 46.97 | 37.31 | a | 29.90 | 52.45 | b | |||||||||
2003 | 20.97 | 22.50 | 38.33 | a | 55.86 | a | 67.74 | 75.62 | a | 79.35 | 81.71 | 70.00 | 56.80 | a | 37.50 | 31.29 | 53.14 | |||||||||
2004 | 16.52 | 29.93 | 40.10 | 56.71 | b | 64.35 | 72.45 | h | 77.67 | a | 72.30 | d | 73.27 | 56.67 | a | ----- | z | ----- | z | 54.17 | c | |||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 20.03 | 27.92 | 39.09 | 54.83 | 68.75 | 76.35 | 80.78 | 78.33 | 68.48 | 57.00 | 38.85 | 24.65 | 52.87 | |||||||||||||
S.D. | 4.89 | 4.54 | 4.52 | 3.89 | 4.38 | 3.17 | 3.00 | 2.92 | 3.05 | 3.91 | 4.57 | 4.98 | 1.27 | |||||||||||||
SKEW | -0.12 | 0.32 | 0.33 | -0.26 | 0.48 | -0.10 | 0.08 | 0.03 | -0.19 | 0.48 | 0.45 | -0.50 | -0.28 | |||||||||||||
MAX | 30.23 | 38.44 | 49.53 | 61.80 | 80.26 | 83.67 | 86.61 | 84.19 | 74.43 | 69.90 | 51.00 | 32.42 | 55.25 | |||||||||||||
MIN | 11.16 | 21.00 | 31.50 | 47.57 | 62.16 | 69.10 | 73.10 | 72.30 | 60.80 | 46.97 | 30.82 | 12.81 | 50.26 | |||||||||||||
YRS | 36 | 38 | 38 | 35 | 34 | 31 | 35 | 37 | 38 | 35 | 36 | 34 | 20 |