YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1957 | ----- | z | ----- | z | ----- | z | ----- | z | 44.39 | 54.77 | 64.71 | 58.71 | 46.57 | 38.55 | 25.13 | g | 18.13 | a | 46.55 | e | ||||||
1958 | 12.97 | 3.39 | 22.52 | 34.37 | 45.84 | 48.39 | b | 56.00 | a | 56.32 | 49.57 | 38.27 | a | 22.03 | a | 3.20 | a | 32.74 | ||||||||
1959 | -2.50 | c | 3.54 | 21.65 | 31.40 | 49.00 | 58.47 | 57.06 | 60.65 | 48.53 | 33.77 | 15.17 | 20.46 | e | 33.10 | |||||||||||
1960 | 4.43 | a | 6.21 | a | 6.40 | a | 35.17 | 44.52 | 51.80 | 58.45 | 58.65 | 49.97 | 36.03 | 24.52 | a | 7.97 | 32.01 | |||||||||
1961 | 3.63 | a | 14.11 | 24.81 | 28.37 | 42.65 | 54.93 | 56.97 | 59.23 | 48.97 | 37.61 | 24.63 | 5.97 | 33.49 | ||||||||||||
1962 | 0.77 | a | 6.54 | 16.16 | 32.90 | 52.13 | 54.73 | 58.61 | 57.06 | 46.13 | 41.58 | 29.33 | 12.03 | 34.00 | ||||||||||||
1963 | -4.13 | 5.07 | 25.06 | 36.57 | 45.84 | 60.23 | 61.42 | 57.26 | 51.90 | 44.94 | 28.67 | 2.33 | a | 34.60 | ||||||||||||
1964 | 12.10 | 12.24 | 14.68 | 36.83 | 49.00 | 56.07 | 62.19 | 54.72 | b | ----- | z | ----- | z | ----- | z | ----- | z | 37.23 | d | |||||||
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 56.25 | n | 60.35 | 57.45 | 45.27 | 40.30 | a | 23.73 | 20.81 | 41.32 | f | |||||
1966 | -8.48 | 3.93 | 27.42 | 31.97 | 41.29 | 55.87 | 63.33 | a | 56.00 | 48.63 | 35.67 | a | 20.56 | c | 8.90 | 32.09 | ||||||||||
1967 | 5.84 | -1.71 | 22.94 | 35.37 | 40.06 | 55.70 | 57.52 | 54.32 | 46.76 | a | 35.93 | a | 23.00 | a | 13.55 | 32.44 | ||||||||||
1968 | 5.39 | 5.86 | 26.58 | 36.17 | 41.13 | 56.30 | 59.45 | 58.65 | 48.53 | 40.60 | a | 26.97 | a | 9.48 | 34.59 | |||||||||||
1969 | -1.68 | 7.85 | a | 9.19 | 37.03 | 47.65 | 49.93 | 61.10 | 58.47 | a | 49.67 | 36.48 | 24.60 | 9.77 | 32.51 | |||||||||||
1970 | -6.90 | a | 1.21 | 12.65 | 33.30 | 46.71 | 58.07 | 60.39 | 57.84 | 49.67 | 38.90 | 24.40 | 7.39 | 31.97 | ||||||||||||
1971 | -2.48 | 9.11 | 19.81 | 34.17 | 42.68 | 60.40 | 56.13 | 55.68 | 49.00 | 42.71 | 24.60 | 7.13 | 33.24 | |||||||||||||
1972 | -3.26 | 1.24 | 19.13 | 32.60 | 50.10 | 54.50 | 58.90 | 59.58 | 48.37 | 35.70 | a | 26.79 | a | 4.03 | 32.31 | |||||||||||
1973 | 10.94 | 14.89 | 32.84 | 33.93 | 44.19 | 57.00 | 60.29 | 60.57 | a | 49.60 | 44.13 | 26.83 | 8.68 | 36.99 | ||||||||||||
1974 | 0.29 | 7.29 | 22.06 | 36.53 | 44.90 | 54.27 | 63.48 | 55.03 | 44.30 | 39.33 | a | 25.89 | b | 15.61 | 34.08 | |||||||||||
1975 | 3.52 | 4.50 | 10.90 | 31.77 | 49.87 | 57.47 | 62.06 | 58.13 | 44.57 | 40.03 | b | 26.77 | 13.68 | 33.61 | ||||||||||||
1976 | 1.35 | 20.24 | 23.87 | 38.83 | 44.13 | 56.60 | 60.35 | 58.90 | 46.40 | 32.00 | 16.10 | 1.48 | 33.36 | |||||||||||||
1977 | -10.37 | a | 13.96 | 29.13 | 41.27 | 54.19 | 56.70 | 61.80 | a | 55.06 | 51.33 | 36.52 | 23.57 | 8.52 | 35.14 | |||||||||||
1978 | -5.39 | -0.25 | 20.58 | 35.20 | 48.45 | b | 56.57 | 59.35 | 58.03 | 53.97 | 38.10 | 21.77 | 4.84 | 32.60 | ||||||||||||
1979 | -9.16 | -4.93 | 17.94 | 32.43 | 42.39 | 55.52 | a | 60.26 | 57.19 | 49.77 | 36.23 | 22.50 | 17.20 | a | 31.44 | |||||||||||
1980 | 7.55 | 5.66 | 17.97 | 36.20 | 47.50 | a | 55.47 | 59.65 | 58.03 | 48.90 | 34.68 | 26.28 | a | 9.77 | 33.97 | |||||||||||
1981 | 5.10 | 12.93 | 25.06 | 38.21 | a | 44.74 | 56.13 | 61.26 | 59.30 | a | 47.93 | 37.84 | 27.93 | 5.19 | 35.14 | |||||||||||
1982 | -9.17 | a | 3.85 | b | 21.52 | 32.20 | 50.42 | 50.73 | 62.78 | m | 59.23 | 49.14 | b | 39.70 | a | 20.63 | c | 17.00 | d | 30.48 | a | |||||
1983 | 9.37 | a | 18.39 | e | 25.27 | a | 31.55 | a | 41.97 | a | 56.47 | 65.57 | a | 63.87 | a | 50.62 | a | 38.71 | 28.00 | b | -9.77 | e | 35.00 | |||
1984 | 2.03 | 18.96 | b | 15.24 | b | 35.31 | a | 43.97 | a | 58.97 | 60.71 | 61.83 | a | 44.61 | b | 41.75 | c | 24.07 | b | 6.19 | d | 34.47 | ||||
1985 | -2.31 | e | 4.59 | a | 27.17 | b | 38.70 | 48.10 | a | 52.87 | 60.03 | 54.83 | b | 49.23 | d | 33.90 | b | 16.00 | b | -5.46 | e | 31.47 | ||||
1986 | 7.84 | f | 4.96 | 25.24 | b | 37.34 | a | 48.07 | a | 58.15 | c | 63.39 | 55.00 | 50.28 | a | 38.69 | b | 18.78 | c | 14.41 | b | 37.66 | a | |||
1987 | 11.57 | a | 20.75 | 27.73 | a | 40.34 | a | 50.21 | b | 59.37 | 63.74 | 57.26 | 49.28 | a | 32.74 | d | 28.37 | c | 15.72 | b | 38.09 | |||||
1988 | -3.18 | c | 1.04 | e | 24.62 | b | 33.29 | b | 50.48 | 60.50 | 62.74 | 61.68 | 49.14 | a | 30.32 | 23.83 | a | 9.55 | b | 33.67 | ||||||
1989 | 10.21 | b | -2.54 | 17.96 | d | 32.60 | 44.55 | 54.40 | 63.94 | 58.71 | 47.72 | a | 35.87 | 17.90 | a | 0.06 | 31.78 | |||||||||
1990 | 16.03 | a | 9.50 | 24.27 | a | 33.14 | b | 44.48 | 58.83 | 60.61 | 59.58 | 52.03 | 34.71 | 25.93 | b | 4.65 | 35.31 | |||||||||
1991 | -0.70 | a | 13.82 | 23.90 | 37.50 | 52.26 | 61.66 | a | 62.26 | 61.69 | e | ----- | z | 36.35 | k | ----- | z | ----- | z | 39.05 | d | |||||
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 10.10 | a | 10.10 | k |
1993 | 1.37 | a | 5.29 | 17.63 | a | 32.77 | 46.81 | 53.67 | 59.68 | c | 58.94 | 44.62 | a | 34.33 | a | 21.36 | b | 11.53 | a | 32.33 | ||||||
1994 | -6.20 | a | -0.39 | 24.03 | 33.21 | a | 48.20 | a | 59.41 | a | 59.35 | 57.71 | 52.79 | b | 41.00 | b | 26.52 | c | 13.97 | a | 34.13 | |||||
1995 | 7.83 | b | 9.36 | 23.83 | b | 31.41 | a | 46.68 | 61.07 | 63.10 | 63.52 | 47.86 | a | 37.69 | b | 18.50 | 9.66 | b | 35.04 | |||||||
1996 | -2.94 | 8.15 | c | 15.32 | 29.21 | b | 45.16 | 59.87 | 59.47 | a | 58.39 | 49.71 | b | 36.62 | b | 15.24 | a | 2.83 | b | 31.42 | ||||||
1997 | -3.70 | d | 8.64 | c | 21.20 | a | 32.46 | b | 42.63 | a | 58.72 | a | 61.93 | c | 59.58 | ----- | z | 45.43 | c | 19.00 | 19.26 | 33.20 | a | |||
1998 | 6.77 | e | 22.54 | d | 22.10 | b | 38.18 | b | 51.70 | d | 57.86 | a | 63.23 | 61.70 | a | 52.87 | 41.39 | c | 27.41 | c | 14.47 | a | 38.35 | |||
1999 | -2.23 | e | 19.15 | b | 23.70 | a | 36.87 | 48.73 | a | 58.07 | 65.30 | d | 59.52 | 48.45 | a | 33.00 | c | ----- | z | 8.93 | p | 39.06 | b | |||
2000 | 3.32 | c | 15.28 | d | 27.04 | h | 33.38 | d | 48.58 | 55.33 | ----- | z | 59.13 | 45.36 | e | 38.47 | a | 22.24 | a | -3.58 | 31.75 | b | ||||
2001 | 6.39 | c | -3.09 | e | 15.40 | a | 36.75 | b | ----- | z | 57.70 | 62.19 | 60.20 | a | 49.03 | 33.80 | a | 33.03 | a | 16.77 | a | 33.47 | a | |||
2002 | 14.21 | c | 16.86 | 13.67 | a | 33.17 | a | 41.07 | a | 59.36 | b | 65.10 | 59.26 | 50.80 | 31.74 | 21.97 | 14.42 | 35.13 | ||||||||
2003 | 3.00 | a | 3.41 | a | 20.24 | b | 35.48 | a | 45.61 | 55.67 | 60.65 | 60.48 | ----- | z | ----- | z | ----- | z | ----- | z | 35.57 | d | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 1.89 | 7.99 | 20.92 | 34.67 | 46.43 | 56.55 | 61.00 | 58.54 | 48.76 | 37.58 | 23.55 | 9.25 | 33.76 | |||||||||||||
S.D. | 6.87 | 7.06 | 5.57 | 2.82 | 3.44 | 2.92 | 2.41 | 2.25 | 2.34 | 3.56 | 4.15 | 6.87 | 1.75 | |||||||||||||
SKEW | 0.16 | 0.32 | -0.52 | 0.17 | 0.15 | -0.65 | -0.10 | 0.13 | -0.10 | 0.20 | -0.30 | -0.55 | 0.87 | |||||||||||||
MAX | 16.03 | 22.54 | 32.84 | 41.27 | 54.19 | 61.66 | 65.57 | 63.87 | 53.97 | 45.43 | 33.03 | 20.81 | 38.35 | |||||||||||||
MIN | -10.37 | -4.93 | 6.40 | 28.37 | 40.06 | 48.39 | 56.00 | 54.32 | 44.30 | 30.32 | 15.17 | -9.77 | 31.42 | |||||||||||||
YRS | 43 | 44 | 43 | 44 | 44 | 45 | 44 | 46 | 42 | 43 | 41 | 43 | 35 |