YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 35.75 | b | 19.44 | 27.59 | j | |
1963 | 3.80 | a | 13.81 | a | 34.66 | 47.68 | 55.35 | 69.07 | 72.58 | 68.11 | 62.10 | 58.29 | 38.23 | 9.32 | 44.42 | |||||||||||
1964 | 19.53 | 21.96 | a | 25.34 | 44.15 | j | ----- | z | 67.43 | 74.06 | 66.82 | 58.15 | 43.66 | i | 33.47 | 11.53 | 42.03 | c | ||||||||
1965 | 7.69 | 10.93 | 17.68 | 41.97 | 58.94 | 65.32 | 69.69 | 68.15 | 52.03 | 50.42 | 31.80 | 25.95 | 41.71 | |||||||||||||
1966 | 1.82 | a | 14.43 | 35.05 | 41.23 | 53.73 | a | 67.37 | 74.65 | 66.58 | 59.09 | a | 47.37 | 29.10 | 16.68 | 42.26 | ||||||||||
1967 | 13.95 | 7.41 | 29.08 | 44.88 | 51.92 | 65.42 | 68.81 | 66.74 | 59.78 | 46.89 | 30.97 | 21.03 | 42.24 | |||||||||||||
1968 | 13.21 | 13.24 | 38.48 | 48.13 | 53.74 | 66.05 | 70.27 | 69.47 | 60.15 | 51.26 | 32.70 | 17.72 | b | 44.54 | ||||||||||||
1969 | 7.89 | 17.50 | 23.81 | 47.88 | 59.66 | 60.75 | 70.90 | 72.52 | 61.40 | 45.40 | 31.88 | 20.18 | 43.31 | |||||||||||||
1970 | 4.97 | 14.88 | 23.73 | 44.22 | 57.63 | 69.43 | 73.16 | 69.95 | 60.27 | 48.34 | 30.43 | 16.89 | 42.82 | |||||||||||||
1971 | 5.89 | 16.48 | 26.98 | 46.67 | 54.56 | 70.55 | a | 67.53 | 67.29 | 61.75 | 52.60 | 32.43 | 17.32 | 43.34 | ||||||||||||
1972 | 6.44 | 10.02 | 25.77 | 41.70 | 61.13 | 65.48 | 68.32 | 68.73 | 58.33 | 44.21 | 32.63 | 11.68 | 41.20 | |||||||||||||
1973 | 16.58 | 20.62 | 39.15 | 44.67 | 54.68 | 68.65 | 71.10 | 72.23 | 59.63 | 53.85 | 34.23 | 16.48 | 45.99 | |||||||||||||
1974 | 12.18 | 16.20 | 28.81 | 46.75 | 54.40 | 65.05 | 75.48 | 66.82 | 56.35 | 50.18 | 34.02 | 23.50 | 44.14 | |||||||||||||
1975 | 14.02 | 16.52 | 22.71 | 38.57 | 60.48 | 67.25 | 74.48 | a | 69.68 | 57.07 | 51.94 | 35.62 | 17.77 | 43.84 | ||||||||||||
1976 | 9.31 | 25.93 | 30.42 | 50.23 | 57.21 | 70.05 | 74.15 | 71.79 | 61.03 | 43.13 | 26.57 | 10.15 | 44.16 | |||||||||||||
1977 | 1.08 | a | 21.86 | 37.26 | 53.43 | 66.87 | 67.43 | 73.74 | 66.15 | 60.60 | 48.24 | 31.40 | 14.97 | 45.25 | ||||||||||||
1978 | 6.71 | 10.73 | 29.31 | 43.73 | 60.69 | 66.37 | 70.27 | 70.71 | 66.04 | b | 49.98 | 29.93 | 12.85 | 43.11 | ||||||||||||
1979 | 1.16 | 9.23 | 27.37 | 41.85 | 53.26 | 65.18 | 70.68 | 67.27 | 62.38 | 47.18 | 31.42 | 25.18 | 41.85 | |||||||||||||
1980 | 13.42 | 14.21 | 25.65 | 48.85 | 60.84 | 66.53 | 72.97 | 69.65 | 59.40 | 45.16 | 35.62 | 18.94 | 44.27 | |||||||||||||
1981 | 17.47 | 22.89 | 36.87 | a | 47.47 | 55.74 | 65.57 | 71.00 | 69.05 | 59.12 | 45.37 | a | 36.87 | 17.31 | 45.39 | |||||||||||
1982 | 1.31 | 14.59 | 27.19 | b | 40.86 | a | 60.77 | a | 61.59 | a | 73.18 | 69.26 | 59.68 | 50.03 | a | 29.53 | ----- | z | 44.36 | a | ||||||
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1984 | 13.28 | h | 28.50 | c | 25.77 | c | 47.43 | b | 55.64 | c | 69.56 | e | 71.83 | d | 73.12 | g | ----- | z | 50.95 | a | 32.00 | f | 19.83 | e | 46.19 | d |
1985 | 11.20 | f | 15.70 | a | 34.71 | e | 51.44 | e | 62.15 | g | 64.07 | a | 71.12 | c | 66.21 | c | 60.35 | c | 48.80 | d | 24.50 | b | 6.83 | a | 44.37 | b |
1986 | 16.81 | 15.54 | 34.23 | 50.27 | 59.77 | 67.73 | b | 73.71 | 66.45 | c | 59.07 | a | 47.69 | g | 27.79 | a | 22.42 | 44.89 | a | |||||||
1987 | 19.80 | a | 29.87 | b | 38.28 | d | 50.54 | f | 62.02 | f | 69.50 | g | 73.33 | g | 66.20 | i | 60.59 | g | 42.33 | d | 34.85 | f | 23.50 | a | 30.76 | g |
1988 | 7.33 | d | 11.55 | 32.35 | 46.83 | 64.39 | 72.32 | e | 75.56 | 71.92 | 60.40 | a | 42.53 | 32.00 | a | 17.77 | a | 44.58 | ||||||||
1989 | 18.90 | 7.88 | 25.03 | 44.25 | 57.10 | 64.88 | a | 73.42 | 68.56 | 59.05 | 48.76 | 26.95 | 8.52 | 41.94 | ||||||||||||
1990 | 24.37 | 21.05 | 34.44 | 46.58 | 54.89 | 68.03 | 69.31 | b | 68.52 | a | 62.75 | 46.81 | 35.80 | 14.85 | a | 45.62 | ||||||||||
1991 | 10.60 | 22.71 | 32.92 | 49.03 | 61.10 | 70.07 | a | 69.60 | 69.52 | 58.43 | 46.27 | 23.13 | 18.94 | 44.36 | ||||||||||||
1992 | 20.06 | 26.79 | 32.27 | 43.05 | 60.50 | 63.58 | 64.08 | 64.27 | 59.30 | 45.94 | 29.73 | 19.65 | 44.10 | |||||||||||||
1993 | 13.00 | 15.73 | 28.65 | 43.75 | 56.37 | 62.83 | 68.66 | 68.53 | 53.65 | 46.07 | a | 29.12 | 19.76 | 42.18 | ||||||||||||
1994 | 2.11 | 11.12 | 33.37 | 45.60 | 59.66 | 67.50 | ----- | z | 65.39 | 62.03 | 50.89 | 36.14 | a | 21.84 | 41.42 | a | ||||||||||
1995 | 14.68 | 16.61 | 32.95 | 40.93 | 55.27 | 69.02 | 70.21 | 72.11 | 58.62 | 47.69 | 25.18 | 15.76 | 43.25 | |||||||||||||
1996 | 6.47 | 15.95 | 23.03 | a | 40.35 | 54.79 | 65.98 | 67.31 | 68.74 | 60.07 | a | 48.84 | 24.10 | 12.77 | 40.70 | |||||||||||
1997 | 8.60 | 18.50 | a | 28.79 | 42.92 | 53.50 | 68.12 | a | 69.02 | a | 66.45 | 61.50 | 49.65 | 27.48 | 25.68 | 43.35 | ||||||||||
1998 | 19.52 | c | 31.68 | 31.56 | 50.30 | 64.02 | a | 63.63 | 70.10 | 69.95 | 65.03 | 50.32 | 36.20 | 23.42 | 47.98 | |||||||||||
1999 | 11.15 | 26.30 | 33.11 | 47.31 | a | 60.16 | 65.67 | 73.89 | 67.84 | 59.55 | 47.74 | 39.97 | 23.82 | 46.38 | ||||||||||||
2000 | 14.11 | 25.69 | 39.21 | 45.10 | 59.37 | a | 63.10 | 70.11 | 70.37 | 60.10 | 51.85 | 30.48 | 5.79 | 44.61 | ||||||||||||
2001 | 19.16 | 10.95 | 27.31 | 47.65 | 59.15 | 66.87 | 72.32 | 70.42 | 58.83 | 47.10 | a | 43.75 | 25.34 | 45.74 | ||||||||||||
2002 | 22.61 | 26.98 | a | 22.82 | 43.66 | b | 53.44 | 68.31 | a | 73.35 | 68.24 | 62.63 | 41.06 | 31.52 | 24.95 | a | 44.97 | |||||||||
2003 | 14.10 | 14.05 | 29.95 | a | 47.21 | a | 55.84 | 65.03 | 70.10 | a | 71.16 | 59.80 | 49.29 | 31.03 | 24.08 | 44.30 | ||||||||||
2004 | 9.71 | 20.72 | 34.91 | b | 48.60 | 54.97 | 63.12 | a | 68.18 | 63.79 | 65.40 | 48.37 | 36.33 | 20.55 | 44.55 | |||||||||||
2005 | 13.53 | 24.57 | a | 30.76 | 50.83 | 55.24 | 70.12 | 72.68 | 68.98 | 64.27 | 50.60 | 35.47 | ----- | z | 48.82 | a | ||||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 11.63 | 17.90 | 30.28 | 45.85 | 57.61 | 66.59 | 71.29 | 68.61 | 60.13 | 48.29 | 31.98 | 18.07 | 43.90 | |||||||||||||
S.D. | 6.37 | 6.37 | 5.20 | 3.46 | 3.50 | 2.59 | 2.54 | 2.14 | 2.72 | 3.35 | 4.40 | 5.41 | 1.59 | |||||||||||||
SKEW | 0.01 | 0.38 | -0.13 | -0.03 | 0.57 | -0.10 | -0.42 | -0.11 | -0.39 | 0.24 | 0.16 | -0.50 | 0.13 | |||||||||||||
MAX | 24.37 | 31.68 | 39.21 | 53.43 | 66.87 | 72.32 | 75.56 | 72.52 | 66.04 | 58.29 | 43.75 | 25.95 | 47.98 | |||||||||||||
MIN | 1.08 | 7.41 | 17.68 | 38.57 | 51.92 | 60.75 | 64.08 | 63.79 | 52.03 | 41.06 | 23.13 | 5.79 | 40.70 | |||||||||||||
YRS | 40 | 42 | 42 | 40 | 39 | 41 | 40 | 40 | 40 | 40 | 41 | 41 | 34 |