YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.26 | 26.07 | 7.83 | a | 23.72 | i | ||
1963 | -8.20 | a | -2.54 | 17.65 | 31.73 | 41.03 | 53.27 | 57.93 | b | 52.50 | a | 47.80 | 43.84 | 27.43 | -0.52 | b | 30.16 | |||||||||
1964 | 8.48 | 6.34 | 11.13 | 29.53 | 46.70 | a | 48.07 | 55.67 | a | 50.94 | 44.47 | 36.16 | 24.67 | 0.77 | a | 30.24 | ||||||||||
1965 | -5.30 | a | -4.59 | a | 7.13 | 30.13 | 45.00 | 47.07 | 52.93 | a | 52.48 | 41.40 | 36.87 | 21.57 | 16.81 | 28.46 | ||||||||||
1966 | -9.50 | a | 4.57 | 20.58 | 27.63 | 36.55 | 51.27 | 58.10 | 53.45 | 45.37 | 33.58 | 20.60 | 8.68 | 29.24 | ||||||||||||
1967 | 5.16 | -4.50 | 16.84 | 28.43 | 33.84 | 48.87 | 54.10 | 50.87 | 45.67 | 34.52 | 19.90 | 9.19 | 28.57 | |||||||||||||
1968 | 2.35 | 0.66 | 22.81 | 32.03 | 38.94 | 48.86 | a | 55.10 | 53.81 | 48.43 | 40.13 | 24.43 | 7.10 | 31.22 | ||||||||||||
1969 | 1.77 | 5.96 | 11.16 | 32.10 | 41.90 | 45.10 | 51.90 | 50.35 | 44.43 | 33.00 | 20.67 | 9.13 | 28.96 | |||||||||||||
1970 | -9.68 | -4.11 | a | 5.35 | 27.30 | 37.65 | 47.37 | 54.29 | 48.48 | 43.97 | 36.29 | 20.79 | a | 5.84 | 26.13 | |||||||||||
1971 | -10.00 | 1.36 | 8.00 | 26.85 | d | 32.55 | 50.10 | 47.58 | 46.70 | a | 43.43 | 40.03 | 22.97 | 4.06 | 26.14 | |||||||||||
1972 | -12.03 | a | -7.41 | 6.32 | 22.69 | a | 40.55 | 43.77 | 52.87 | 51.48 | 40.23 | 32.45 | b | 24.63 | 1.61 | 24.76 | ||||||||||
1973 | 0.63 | a | 4.36 | 24.87 | 27.20 | 37.29 | 50.87 | 51.87 | 55.26 | 42.27 | ----- | z | ----- | z | ----- | z | 32.73 | c | ||||||||
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 18.28 | l | ----- | z | ----- | z |
1978 | -6.97 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | -6.97 | k | |
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 22.47 | 14.36 | c | 18.41 | j | |
1980 | 1.00 | b | 1.76 | 10.73 | a | 31.38 | a | 43.63 | a | 49.86 | a | 57.10 | b | 56.00 | 45.59 | a | 31.16 | 24.37 | 4.42 | 29.75 | ||||||
1981 | 4.03 | 9.75 | 18.97 | a | 31.59 | a | 38.07 | b | 49.96 | e | 55.71 | 56.85 | d | 44.43 | 34.45 | 28.63 | 9.48 | b | 31.83 | |||||||
1982 | -11.45 | 0.48 | a | 15.03 | b | 26.67 | 42.62 | b | 44.28 | a | 55.81 | 51.28 | b | 45.26 | c | 38.00 | b | 20.63 | 15.23 | 28.65 | ||||||
1983 | 6.79 | c | 17.67 | a | 20.00 | 26.10 | 35.40 | a | 48.80 | 59.84 | 58.94 | 49.43 | 34.94 | 25.80 | -4.90 | b | 31.57 | |||||||||
1984 | -1.07 | a | 17.66 | 9.65 | 29.00 | 37.30 | a | 54.43 | 54.52 | 58.70 | d | 43.13 | 40.00 | a | 22.60 | 7.39 | 31.11 | |||||||||
1985 | 0.85 | d | 2.50 | b | 22.90 | 32.21 | a | 44.07 | b | 46.40 | 53.17 | b | 51.52 | b | ----- | z | 34.48 | f | 16.64 | b | -3.30 | a | 26.70 | b | ||
1986 | ----- | z | ----- | z | ----- | z | 33.77 | d | 40.93 | c | 48.93 | b | 56.93 | a | 50.83 | a | 46.97 | a | 34.90 | 18.37 | 12.81 | 38.27 | c | |||
1987 | 8.90 | ----- | z | ----- | z | 31.93 | 43.06 | 51.47 | 57.83 | b | 54.07 | a | 48.61 | b | 31.29 | 26.37 | 16.52 | 37.00 | b | |||||||
1988 | -1.52 | ----- | z | ----- | z | 27.90 | 43.48 | 52.17 | 57.64 | c | 56.65 | 46.66 | a | 30.71 | 25.33 | 6.19 | 34.52 | b | ||||||||
1989 | 5.16 | f | -4.93 | a | 10.71 | 27.20 | 38.71 | 48.30 | 57.13 | a | 55.71 | c | 45.83 | 35.06 | 18.10 | -3.94 | 29.81 | a | ||||||||
1990 | 11.90 | ----- | z | ----- | z | 30.30 | 36.27 | a | 50.74 | c | 54.37 | a | 53.47 | a | 46.68 | b | 32.87 | 26.23 | 6.19 | 34.90 | b | |||||
1991 | -0.70 | a | 10.40 | c | 19.03 | 32.40 | 46.83 | b | 53.29 | b | 55.63 | a | 56.41 | b | 46.55 | a | 33.23 | 17.00 | 9.32 | 31.62 | ||||||
1992 | 9.52 | 14.93 | b | 17.53 | a | 28.66 | a | 43.43 | a | 47.59 | a | 49.54 | c | 51.16 | 45.81 | c | 34.00 | 23.73 | 10.32 | 31.35 | ||||||
1993 | 5.96 | c | 4.96 | d | 15.33 | a | 27.03 | 40.62 | b | 48.90 | a | 56.55 | 55.25 | g | 41.40 | 31.10 | a | 20.60 | 12.97 | 27.77 | a | |||||
1994 | -10.97 | a | -2.88 | b | 20.76 | b | 27.83 | 42.29 | 51.90 | 55.21 | c | 53.41 | b | 50.03 | 39.48 | d | 28.03 | 17.58 | l | 32.28 | a | |||||
1995 | 6.19 | 3.15 | b | 21.50 | a | 25.62 | a | 39.48 | 53.34 | a | 56.70 | a | 59.80 | a | 45.15 | d | 37.00 | 13.53 | 4.36 | c | 30.49 | |||||
1996 | -6.16 | 3.26 | b | 10.87 | 23.41 | a | 37.17 | a | 51.11 | b | 53.00 | b | 54.86 | b | 47.64 | b | 36.33 | a | 16.53 | 8.23 | a | 28.02 | ||||
1997 | 0.55 | 6.93 | 15.61 | 26.00 | a | 34.37 | d | 52.10 | a | 54.57 | c | 51.93 | a | 49.17 | a | 37.77 | 20.04 | b | 18.77 | 30.65 | ||||||
1998 | 11.20 | a | 23.89 | a | 19.16 | 31.52 | a | 42.15 | d | 50.50 | 56.52 | 57.84 | 51.53 | 38.93 | a | 28.13 | 12.94 | 35.36 | ||||||||
1999 | 2.06 | 13.96 | 19.83 | b | 30.90 | 44.23 | 53.20 | 60.58 | 55.77 | a | 48.00 | 34.65 | 29.50 | 13.03 | 33.81 | |||||||||||
2000 | 2.10 | a | 13.55 | 24.84 | 28.10 | 43.71 | 47.80 | 55.40 | a | 56.13 | a | 45.57 | 39.71 | 25.50 | -0.10 | 31.86 | ||||||||||
2001 | 10.94 | 1.75 | 16.42 | 32.93 | a | 44.35 | 52.80 | 56.65 | 58.60 | a | 46.97 | 35.93 | b | 33.43 | 18.10 | a | 34.07 | |||||||||
2002 | 13.87 | 15.61 | 9.74 | 29.77 | 37.23 | 53.17 | 58.64 | c | 57.00 | a | 51.13 | 31.84 | 19.93 | 12.57 | a | 32.54 | ||||||||||
2003 | -0.33 | a | -3.15 | a | 13.84 | 25.55 | a | 39.06 | 49.79 | a | 55.67 | a | 57.23 | 47.83 | 34.06 | 22.83 | a | 14.96 | c | 29.78 | ||||||
2004 | -4.60 | a | 9.45 | 19.81 | 28.63 | ----- | z | ----- | z | 53.14 | b | 49.65 | 54.52 | e | 37.46 | e | 26.66 | a | 7.14 | c | 28.19 | b | ||||
2005 | -1.03 | a | 11.59 | a | 14.41 | i | 33.08 | r | 40.92 | g | 55.32 | k | 56.52 | b | 55.11 | c | 50.00 | a | 36.83 | a | 31.00 | u | ----- | z | 34.84 | f |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.41 | 5.22 | 15.75 | 28.95 | 40.30 | 49.87 | 55.32 | 54.03 | 46.43 | 35.72 | 23.10 | 8.15 | 30.24 | |||||||||||||
S.D. | 7.34 | 7.81 | 5.58 | 2.74 | 3.70 | 2.70 | 2.64 | 3.20 | 3.04 | 3.09 | 4.21 | 6.24 | 2.46 | |||||||||||||
SKEW | -0.06 | 0.43 | -0.21 | -0.23 | -0.18 | -0.41 | -0.66 | -0.16 | 0.27 | 0.38 | -0.00 | -0.33 | -0.19 | |||||||||||||
MAX | 13.87 | 23.89 | 24.87 | 33.77 | 46.83 | 54.43 | 60.58 | 59.80 | 54.52 | 43.84 | 33.43 | 18.77 | 35.36 | |||||||||||||
MIN | -12.03 | -7.41 | 5.35 | 22.69 | 32.55 | 43.77 | 47.58 | 46.70 | 40.23 | 30.71 | 13.53 | -4.90 | 24.76 | |||||||||||||
YRS | 36 | 33 | 32 | 36 | 35 | 35 | 37 | 36 | 36 | 36 | 37 | 36 | 26 |