YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 75.90 | 59.13 | 32.58 | e | 55.87 | i | ||
1968 | 24.13 | 47.90 | 62.93 | b | 65.00 | 79.10 | a | 93.57 | 97.67 | d | 91.21 | l | 84.08 | e | 73.13 | h | 51.96 | b | 36.23 | e | 64.26 | b | ||||
1969 | 40.89 | d | 45.52 | c | 60.45 | k | 74.88 | d | 86.31 | e | 87.48 | a | 100.26 | d | 101.21 | b | 88.71 | b | 63.00 | d | 53.70 | c | 45.04 | c | 71.55 | a |
1970 | 42.76 | b | 57.37 | a | 55.32 | 62.47 | 83.30 | a | 90.79 | a | 99.52 | b | 98.61 | c | 84.96 | c | 66.21 | c | 55.93 | 45.79 | c | 70.25 | ||||
1971 | 46.35 | k | 50.32 | 61.00 | 71.23 | 79.90 | a | 93.50 | d | 102.21 | b | 99.53 | a | 83.31 | a | 70.76 | b | 51.26 | c | 37.42 | e | 72.77 | a | |||
1972 | 46.40 | a | 55.90 | 69.76 | b | 73.00 | 83.96 | g | 92.34 | a | 101.96 | e | 96.83 | a | 86.88 | d | 67.38 | b | ----- | z | 36.39 | c | 72.69 | b | ||
1973 | 21.54 | g | 36.81 | a | 54.79 | b | 65.59 | a | 80.67 | d | 91.59 | c | 98.28 | b | 97.83 | a | 86.24 | a | 74.10 | 56.50 | b | 42.74 | d | 71.38 | a | |
1974 | 30.29 | g | 30.96 | 63.90 | a | 66.97 | 86.16 | 98.38 | a | 98.10 | 97.39 | 89.00 | 73.48 | 54.47 | 41.55 | b | 72.76 | a | ||||||||
1975 | 33.35 | 46.93 | 57.68 | 63.57 | 75.77 | a | 88.21 | a | 98.87 | 96.13 | a | 87.67 | 72.16 | 55.30 | 41.50 | a | 68.09 | |||||||||
1976 | 37.37 | a | 54.93 | 57.81 | 70.53 | 80.30 | h | 90.83 | a | 101.68 | 94.84 | 87.93 | 72.30 | a | 58.90 | 46.45 | 70.32 | a | ||||||||
1977 | 37.23 | 56.07 | 59.00 | 76.90 | 79.58 | 99.13 | 98.26 | 97.45 | 88.10 | 75.42 | 57.23 | 49.06 | 72.79 | |||||||||||||
1978 | 39.75 | g | 47.61 | 64.13 | 70.93 | 79.03 | 93.10 | 101.81 | 97.52 | 88.10 | 78.68 | 57.93 | 30.84 | 73.61 | a | |||||||||||
1979 | ----- | z | ----- | z | 54.66 | b | 70.83 | ----- | z | 92.60 | 101.32 | 95.74 | 94.60 | 78.42 | 48.55 | a | 36.90 | 74.85 | c | |||||||
1980 | 42.52 | b | 53.38 | 57.42 | 70.40 | 76.29 | 93.90 | 101.29 | 96.50 | a | 87.72 | a | 72.19 | 55.67 | 51.45 | 71.56 | ||||||||||
1981 | 51.45 | 55.04 | 60.23 | 77.40 | 80.40 | a | 97.07 | 100.71 | 97.63 | a | 90.37 | 69.71 | 58.77 | 44.52 | 73.61 | |||||||||||
1982 | 35.28 | b | 47.39 | 60.46 | c | 71.96 | d | 81.11 | c | 91.28 | a | 98.63 | a | 97.16 | 85.26 | c | 67.90 | b | 51.67 | 43.61 | 69.31 | |||||
1983 | 45.13 | 53.04 | 58.86 | b | 65.72 | a | 77.77 | a | 88.25 | b | 94.96 | c | 95.93 | a | 89.74 | c | 73.50 | a | 53.45 | a | 39.19 | 69.63 | ||||
1984 | 27.03 | 39.90 | 58.00 | a | 66.21 | a | 85.27 | a | 87.73 | d | 96.03 | a | 92.61 | 87.36 | b | 66.13 | a | 57.37 | 45.20 | a | 67.40 | |||||
1985 | 41.26 | 45.82 | 60.39 | 73.34 | a | 81.42 | 96.60 | 100.53 | a | 98.90 | 83.80 | e | 71.86 | b | 54.18 | b | 45.93 | b | 71.17 | |||||||
1986 | 48.93 | a | 57.54 | 68.03 | a | 70.69 | a | 81.93 | c | 96.50 | b | 96.81 | d | 98.53 | a | 78.89 | c | 68.21 | b | 56.60 | 46.80 | a | 72.46 | |||
1987 | 42.52 | 50.36 | 57.68 | 75.30 | 81.23 | 96.50 | b | 96.54 | c | 94.83 | a | 88.93 | a | 76.60 | a | 53.73 | 39.72 | b | 71.16 | |||||||
1988 | 28.71 | 38.59 | 59.47 | a | 72.77 | 82.00 | c | 98.24 | a | 103.10 | 99.23 | 86.39 | b | 80.67 | a | 57.28 | a | 43.97 | 70.87 | |||||||
1989 | 28.58 | 42.00 | b | 67.37 | a | 79.67 | c | 85.80 | a | 93.40 | 103.86 | b | 96.31 | b | 88.69 | a | 75.00 | 60.00 | 47.06 | 72.31 | ||||||
1990 | 42.94 | 54.25 | 65.27 | a | 76.00 | a | 81.58 | 97.62 | a | 100.90 | a | 97.74 | 91.61 | b | 72.81 | 55.00 | a | 38.23 | 72.83 | |||||||
1991 | 29.77 | 43.75 | 58.81 | 67.37 | 81.17 | a | 92.23 | 100.29 | 98.00 | b | 88.14 | a | 77.52 | b | 52.47 | 37.61 | 68.93 | |||||||||
1992 | 29.77 | 48.07 | 64.53 | a | 80.33 | 84.80 | a | 92.50 | 96.35 | 99.07 | b | 89.14 | a | 77.60 | a | 51.48 | a | 36.06 | 70.81 | |||||||
1993 | 40.65 | 48.43 | 64.52 | 69.20 | 81.81 | 89.90 | 97.10 | a | 93.28 | b | 88.43 | 70.93 | c | 52.14 | a | 45.13 | 70.13 | |||||||||
1994 | 48.00 | 49.04 | 67.83 | a | 72.46 | b | 85.45 | b | 96.63 | 104.65 | 102.20 | a | 90.86 | a | 72.18 | c | 51.62 | a | 45.94 | 73.90 | ||||||
1995 | 46.10 | a | 61.19 | b | 63.23 | a | 70.25 | b | 76.17 | a | 88.29 | b | 98.03 | a | 99.90 | 90.28 | a | ----- | z | 63.72 | a | 53.13 | 73.66 | a | ||
1996 | 49.35 | 57.83 | 66.87 | 74.25 | b | 86.71 | 96.38 | a | 102.87 | a | 99.77 | 83.63 | 71.23 | 55.70 | 44.94 | 74.13 | ||||||||||
1997 | 42.87 | 50.64 | 66.55 | 66.36 | b | 84.77 | 92.03 | 97.90 | a | 94.55 | 83.97 | 72.10 | 56.00 | a | 43.27 | a | 70.92 | |||||||||
1998 | 48.90 | 51.11 | 63.10 | 68.80 | 81.81 | 90.43 | 101.55 | 99.77 | 90.62 | a | 72.57 | a | 57.83 | 45.20 | a | 72.64 | ||||||||||
1999 | 49.26 | 55.93 | a | 68.97 | 67.93 | 81.10 | a | 92.70 | 98.26 | 92.75 | k | 86.36 | b | 79.19 | 64.10 | 47.97 | 71.98 | a | ||||||||
2000 | 47.67 | a | 56.48 | 62.23 | 78.38 | a | 87.33 | a | 96.50 | 102.32 | ----- | z | 90.72 | a | 73.17 | a | 49.13 | 47.19 | 71.92 | a | ||||||
2001 | 44.64 | c | 51.30 | a | 63.77 | a | 74.17 | a | 87.29 | 97.30 | 99.97 | 97.68 | 93.34 | a | 77.35 | 61.83 | a | 42.63 | a | 74.27 | ||||||
2002 | 43.72 | b | 50.39 | 63.00 | b | 80.47 | 86.14 | b | 100.17 | 103.80 | a | 97.90 | 85.81 | c | 71.48 | 54.43 | 47.71 | 73.75 | ||||||||
2003 | 50.29 | 49.96 | a | 63.26 | 73.10 | a | 84.52 | 95.03 | a | 103.21 | b | 93.68 | c | 82.00 | x | 75.90 | b | 51.25 | b | 43.08 | e | 71.21 | a | |||
2004 | 31.33 | d | 41.64 | a | 66.63 | d | 67.31 | d | 78.88 | f | 90.36 | p | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 51.73 | h |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 40.59 | 49.54 | 62.15 | 71.40 | 82.23 | 93.58 | 99.99 | 97.40 | 87.70 | 72.96 | 55.45 | 42.92 | 71.43 | |||||||||||||
S.D. | 7.84 | 6.64 | 4.14 | 4.72 | 3.30 | 3.50 | 2.52 | 2.21 | 3.11 | 4.08 | 3.70 | 5.03 | 1.96 | |||||||||||||
SKEW | -0.56 | -0.71 | -0.03 | 0.16 | -0.18 | -0.03 | -0.06 | -0.19 | -0.34 | -0.28 | 0.41 | -0.43 | -0.30 | |||||||||||||
MAX | 51.45 | 61.19 | 69.76 | 80.47 | 87.33 | 100.17 | 104.65 | 102.20 | 94.60 | 80.67 | 64.10 | 53.13 | 74.27 | |||||||||||||
MIN | 24.13 | 30.96 | 54.66 | 62.47 | 75.77 | 87.48 | 94.96 | 92.61 | 78.89 | 63.00 | 48.55 | 30.84 | 67.40 | |||||||||||||
YRS | 32 | 36 | 36 | 37 | 33 | 36 | 36 | 33 | 35 | 35 | 36 | 37 | 23 |