YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1957 | ----- | z | ----- | z | ----- | z | ----- | z | 68.00 | 76.03 | 86.39 | 78.58 | 70.33 | 57.03 | 39.00 | g | 33.48 | d | 67.12 | e | ||||||
1958 | 28.23 | 21.22 | a | 41.00 | 58.50 | 74.97 | 73.77 | 79.65 | 82.26 | 74.47 | 64.87 | a | 43.73 | 23.97 | a | 55.55 | ||||||||||
1959 | 20.00 | d | 26.00 | 44.42 | 59.19 | c | 72.06 | 82.37 | 84.71 | 84.97 | 73.23 | 52.87 | a | 32.60 | 36.92 | f | 57.49 | a | ||||||||
1960 | 23.55 | 24.81 | b | 28.30 | a | 55.93 | 69.13 | 77.17 | 83.55 | 81.48 | 73.13 | 64.45 | 45.66 | a | 27.90 | 54.59 | ||||||||||
1961 | 26.14 | c | 34.93 | 43.74 | 50.00 | 67.58 | 82.07 | 81.61 | 82.97 | b | 70.28 | a | 63.61 | 41.10 | 23.42 | 55.62 | ||||||||||
1962 | 18.93 | d | 23.11 | 33.35 | 53.61 | b | 71.16 | 77.40 | 79.71 | 81.42 | 70.73 | 64.65 | 46.03 | a | 30.52 | 54.22 | ||||||||||
1963 | 12.06 | 25.64 | 45.55 | 60.10 | 69.32 | 83.30 | 82.68 | 79.77 | 75.10 | 72.71 | 49.13 | 20.29 | 56.31 | |||||||||||||
1964 | 31.45 | 39.10 | 36.32 | 57.73 | 74.52 | 83.03 | 87.55 | 78.83 | b | ----- | z | ----- | z | ----- | z | ----- | z | 61.07 | d | |||||||
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 81.56 | n | 83.48 | 82.03 | 61.83 | 65.13 | a | 42.67 | 34.61 | 61.63 | f | |||||
1966 | 12.90 | 25.36 | 47.65 | 51.40 | 68.67 | a | 81.30 | 87.94 | 79.43 | a | 74.27 | 62.47 | a | 38.66 | a | 28.50 | k | 57.28 | a | |||||||
1967 | 25.87 | 22.00 | 41.00 | 56.43 | 67.74 | 77.77 | 82.71 | 81.32 | 74.45 | a | 61.27 | a | 43.62 | a | 31.65 | 55.49 | ||||||||||
1968 | 25.23 | 26.55 | 55.19 | 62.93 | 67.94 | 80.83 | 82.55 | 82.55 | 73.72 | a | 62.48 | b | 41.40 | 24.58 | 57.16 | |||||||||||
1969 | 16.00 | 25.68 | 31.00 | c | 61.73 | d | 73.58 | 73.57 | 83.97 | 85.90 | a | 75.67 | 57.16 | 41.53 | 25.68 | 54.29 | ||||||||||
1970 | 13.16 | 26.79 | 32.26 | 56.30 | 75.40 | a | 83.23 | 86.97 | 84.35 | 73.97 | 59.10 | 38.90 | 25.52 | 54.66 | ||||||||||||
1971 | 16.00 | 25.54 | 36.45 | 61.50 | 70.81 | 81.47 | 80.39 | 83.10 | 74.37 | 64.61 | 40.50 | 24.52 | 54.94 | |||||||||||||
1972 | 16.39 | 20.59 | 36.26 | 53.57 | 73.83 | a | 80.73 | 81.48 | 80.55 | 71.87 | 57.10 | a | 37.86 | a | 20.52 | 52.56 | ||||||||||
1973 | 26.87 | 31.68 | 48.00 | 56.23 | 69.65 | 83.63 | 83.55 | 83.50 | a | 71.53 | 66.94 | 43.67 | 23.06 | 57.36 | ||||||||||||
1974 | 20.61 | 26.71 | 39.65 | 59.07 | 66.58 | 80.70 | 90.39 | 79.61 | 74.70 | 65.43 | a | 42.07 | a | 30.13 | 56.30 | |||||||||||
1975 | 23.58 | 22.89 | 31.16 | 45.07 | 75.81 | 78.70 | 87.94 | 84.10 | 72.77 | 67.29 | 45.73 | 27.20 | a | 55.19 | ||||||||||||
1976 | 23.03 | 37.07 | 41.94 | 65.90 | 73.90 | 85.87 | 90.94 | 86.35 | 79.17 | 57.74 | 38.40 | 24.35 | 58.72 | |||||||||||||
1977 | 9.50 | a | 35.25 | 45.32 | 67.40 | 80.68 | 82.53 | 86.57 | a | 78.84 | 73.80 | 59.90 | 39.90 | 21.87 | 56.80 | |||||||||||
1978 | 14.97 | 20.79 | 39.97 | 55.37 | 74.00 | b | 81.80 | 82.19 | 82.84 | 80.43 | 64.23 | 40.07 | 22.65 | 54.94 | ||||||||||||
1979 | 9.00 | 16.75 | 33.35 | 50.40 | 68.61 | 81.21 | a | 82.87 | 78.84 | 76.50 | 60.71 | 40.40 | 34.13 | a | 52.73 | |||||||||||
1980 | 26.10 | 24.31 | 37.29 | 63.97 | 78.23 | a | 82.40 | 88.77 | 82.19 | 75.30 | 57.61 | 48.97 | a | 30.19 | 57.94 | |||||||||||
1981 | 31.13 | a | 34.64 | 53.87 | 64.76 | a | 72.19 | 79.93 | 83.68 | 78.67 | a | 73.57 | 57.52 | 46.97 | 22.84 | 58.31 | ||||||||||
1982 | 10.77 | 23.93 | 36.58 | 55.17 | a | 72.87 | 77.40 | 84.89 | m | 82.19 | 70.80 | 59.47 | a | 38.29 | b | 32.45 | b | 50.90 | a | |||||||
1983 | 27.33 | d | 30.30 | a | 38.60 | a | 52.20 | 66.39 | 76.80 | 86.74 | 86.35 | 71.90 | 57.68 | 37.89 | b | 11.14 | b | 53.61 | ||||||||
1984 | 21.44 | d | 32.55 | 32.90 | 56.77 | 67.30 | a | 79.52 | a | 82.19 | 83.39 | 68.77 | 59.93 | a | 43.17 | 26.46 | c | 54.53 | ||||||||
1985 | 18.69 | b | 23.75 | 44.69 | b | 61.73 | 74.90 | a | 74.57 | 83.74 | 74.93 | c | 69.78 | c | 57.39 | 32.00 | a | 14.97 | b | 52.59 | ||||||
1986 | 27.93 | c | 22.48 | a | 42.81 | e | 59.17 | a | 70.87 | a | 80.93 | 82.97 | 77.39 | 67.00 | 58.83 | b | 34.80 | 31.07 | a | 54.69 | ||||||
1987 | 28.07 | a | 42.18 | 47.16 | 68.07 | 75.71 | 84.33 | 85.23 | 78.35 | 73.57 | 55.55 | b | 47.52 | a | 30.93 | a | 59.72 | |||||||||
1988 | 18.71 | c | 22.21 | 41.94 | 59.79 | a | 79.19 | 88.97 | 89.74 | 85.94 | 74.40 | 55.90 | 39.93 | a | 27.80 | a | 57.04 | |||||||||
1989 | 30.97 | 20.62 | b | 34.53 | a | 56.00 | b | 69.97 | a | 79.40 | 86.90 | 81.90 | 71.27 | 63.87 | 37.00 | a | 19.48 | 54.33 | ||||||||
1990 | 33.42 | 34.11 | a | 43.94 | 58.80 | 66.93 | a | 79.73 | 81.94 | 79.77 | 75.47 | 58.26 | 45.83 | a | 24.23 | 56.87 | ||||||||||
1991 | 20.97 | 35.32 | 41.33 | a | 58.63 | 69.26 | 82.43 | 82.52 | 80.70 | d | ----- | z | 61.60 | k | ----- | z | ----- | z | 58.90 | d | ||||||
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 25.45 | 25.45 | k | |
1993 | 22.20 | a | 23.36 | 37.23 | 53.07 | 66.29 | 74.41 | a | 79.13 | 80.77 | 65.73 | 57.13 | 37.55 | a | 26.39 | 51.94 | ||||||||||
1994 | 14.10 | b | 19.54 | 41.94 | 56.07 | 73.68 | 79.52 | a | 80.13 | 77.87 | 74.27 | 62.32 | 47.07 | 31.73 | a | 54.85 | ||||||||||
1995 | 24.53 | a | 28.82 | 42.58 | 49.87 | 67.35 | 82.83 | 84.06 | 83.77 | 71.80 | 56.94 | 32.50 | 26.55 | 54.30 | ||||||||||||
1996 | 16.68 | 24.69 | 33.65 | 51.21 | a | 64.13 | 80.14 | a | 81.52 | 82.00 | 71.67 | 59.90 | b | 31.63 | 19.60 | a | 51.40 | |||||||||
1997 | 15.84 | 28.54 | 37.61 | 54.69 | a | 63.00 | b | 84.00 | 80.74 | 78.83 | a | ----- | z | 64.84 | 35.07 | 32.00 | 52.29 | a | ||||||||
1998 | 25.90 | a | 36.04 | 37.13 | 61.00 | 76.97 | 76.40 | 84.10 | 82.67 | a | 80.37 | 62.86 | b | 43.72 | a | 38.93 | c | 58.84 | ||||||||
1999 | 19.90 | b | 36.11 | a | 44.10 | 57.43 | 70.77 | 78.23 | 86.93 | b | 80.71 | 73.66 | a | 61.52 | ----- | z | 29.59 | n | 60.94 | b | ||||||
2000 | 24.21 | b | 35.21 | 49.58 | 56.50 | 71.35 | 75.97 | a | ----- | z | 81.87 | 73.33 | 64.16 | 37.37 | 15.06 | 53.15 | a | |||||||||
2001 | 27.83 | a | 19.00 | b | 34.87 | 55.10 | ----- | z | 78.83 | 85.32 | 83.55 | 71.43 | 60.00 | 58.59 | a | 33.77 | a | 55.30 | a | |||||||
2002 | 31.52 | 37.82 | 31.77 | 54.53 | 65.19 | 80.73 | 84.97 | 78.58 | 74.67 | 50.58 | 40.60 | 34.20 | a | 55.43 | ||||||||||||
2003 | 24.17 | a | 25.19 | b | 40.70 | a | 59.03 | a | 67.68 | 76.97 | 82.48 | 85.65 | ----- | z | ----- | z | ----- | z | ----- | z | 57.73 | d | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 21.72 | 27.71 | 39.97 | 57.32 | 71.00 | 80.07 | 84.17 | 81.56 | 72.98 | 60.79 | 41.22 | 26.47 | 55.41 | |||||||||||||
S.D. | 6.47 | 6.34 | 6.11 | 4.85 | 4.12 | 3.30 | 2.97 | 2.63 | 3.43 | 4.22 | 5.38 | 5.95 | 2.02 | |||||||||||||
SKEW | -0.20 | 0.47 | 0.36 | 0.07 | 0.31 | 0.04 | 0.45 | -0.07 | -0.60 | 0.18 | 0.57 | -0.35 | 0.14 | |||||||||||||
MAX | 33.42 | 42.18 | 55.19 | 68.07 | 80.68 | 88.97 | 90.94 | 86.35 | 80.43 | 72.71 | 58.59 | 38.93 | 59.72 | |||||||||||||
MIN | 9.00 | 16.75 | 28.30 | 45.07 | 63.00 | 73.57 | 79.13 | 74.93 | 61.83 | 50.58 | 31.63 | 11.14 | 51.40 | |||||||||||||
YRS | 44 | 44 | 44 | 44 | 44 | 45 | 44 | 46 | 42 | 43 | 41 | 41 | 34 |