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 | 61.52 | h | 48.70 | 35.48 | 14.03 | 20.45 | 29.67 | h | ||||
1960 | 9.87 | 8.48 | 8.00 | 35.23 | 44.16 | 50.20 | 54.90 | 57.71 | 51.03 | 37.32 | 26.97 | 7.97 | 32.65 | |||||||||||||
1961 | 3.35 | 13.89 | 22.29 | 29.93 | 40.87 | 54.47 | 58.45 | 57.65 | 48.93 | 38.68 | 23.20 | 7.84 | 33.30 | |||||||||||||
1962 | -0.71 | 3.07 | 16.97 | 31.90 | 50.10 | 53.93 | 55.77 | 54.97 | 43.87 | 39.94 | 26.07 | 10.03 | 32.16 | |||||||||||||
1963 | -4.10 | 0.54 | 20.97 | 35.60 | 43.13 | 54.83 | 58.19 | 54.26 | 48.83 | 46.26 | 28.47 | 1.90 | 32.41 | |||||||||||||
1964 | 9.13 | 10.69 | 16.61 | 33.97 | 48.77 | 53.87 | 59.52 | 54.16 | 47.27 | 35.61 | 26.77 | 4.84 | 33.43 | |||||||||||||
1965 | -0.48 | -1.00 | 11.97 | 32.70 | 48.39 | 53.00 | 55.13 | 54.16 | 45.20 | 36.35 | 24.60 | 19.23 | a | 31.60 | ||||||||||||
1966 | -8.94 | 4.68 | 23.42 | 31.53 | 39.16 | 54.43 | 61.29 | 54.74 | 45.93 | 34.84 | 24.41 | a | 15.05 | j | 33.23 | a | ||||||||||
1967 | 7.14 | q | -0.91 | f | 18.48 | 33.30 | 38.55 | b | 55.10 | a | 55.87 | 51.55 | 44.07 | 34.61 | 22.21 | a | 12.84 | 36.66 | b | |||||||
1968 | 2.46 | g | 5.03 | 26.03 | 35.50 | 42.84 | 54.50 | 57.81 | 56.35 | 47.93 | a | 39.26 | 26.00 | 8.84 | 36.37 | a | ||||||||||
1969 | -0.26 | 6.77 | b | 13.00 | a | 35.52 | a | 45.93 | a | 48.27 | 57.96 | c | 57.63 | d | 47.10 | 35.00 | a | 22.40 | 11.94 | 31.77 | ||||||
1970 | -5.38 | b | 3.61 | 15.32 | 32.55 | a | 46.61 | 55.64 | b | 60.10 | 54.58 | 47.53 | 40.26 | 23.80 | 8.39 | 31.92 | ||||||||||
1971 | -4.33 | a | 6.56 | a | 14.00 | 31.71 | b | 40.37 | a | 57.93 | 55.06 | 53.03 | 48.20 | 42.90 | 25.37 | 11.65 | 31.87 | |||||||||
1972 | -4.23 | 0.24 | 15.35 | 30.63 | 47.55 | 50.13 | 56.57 | a | 56.50 | a | 46.33 | 32.07 | b | 25.90 | 5.19 | 30.19 | ||||||||||
1973 | 6.42 | 10.11 | 30.42 | 32.83 | 41.97 | a | 56.43 | 58.61 | 59.00 | 47.17 | a | 41.97 | 25.48 | a | 7.97 | 34.87 | ||||||||||
1974 | 5.00 | 2.39 | 18.67 | a | 33.37 | 41.97 | 50.50 | 60.30 | a | 54.55 | 40.77 | 34.58 | 27.23 | 16.06 | 32.12 | |||||||||||
1975 | 3.77 | 6.32 | 11.35 | 27.83 | 48.52 | 55.57 | 59.71 | 55.90 | 43.27 | 37.80 | a | 28.03 | 11.50 | a | 32.46 | |||||||||||
1976 | -3.55 | 14.21 | 20.45 | 35.59 | a | 41.87 | 55.48 | a | 56.23 | a | 54.07 | a | 43.67 | 28.97 | b | 14.93 | -3.55 | b | 29.86 | |||||||
1977 | -10.26 | 7.93 | 27.55 | 39.27 | 52.61 | 53.43 | 59.77 | a | 52.81 | 49.97 | 35.47 | a | 22.50 | 6.55 | 33.13 | |||||||||||
1978 | -4.16 | -0.39 | 15.29 | 33.07 | 45.63 | a | 54.10 | 58.26 | 57.94 | 50.59 | a | 36.17 | a | 20.97 | 3.87 | 30.94 | ||||||||||
1979 | -8.68 | -2.89 | 18.81 | 32.07 | 40.83 | a | 51.86 | b | 57.43 | a | 55.33 | a | 48.37 | 35.00 | 25.53 | 14.71 | 30.70 | |||||||||
1980 | 3.69 | b | 3.59 | 14.23 | a | 34.61 | b | 46.06 | 53.70 | 59.47 | a | 58.27 | a | 47.27 | 32.29 | 24.57 | b | 9.40 | a | 32.26 | ||||||
1981 | 4.94 | 11.22 | a | 23.77 | 35.23 | 42.77 | 54.80 | 58.35 | 58.93 | b | 45.33 | 33.27 | a | 27.38 | a | 8.55 | 33.71 | |||||||||
1982 | -9.65 | 4.04 | 18.52 | 29.86 | a | 50.71 | 48.76 | a | 61.20 | a | 55.07 | c | 47.70 | c | 37.97 | b | ----- | z | 17.61 | 32.89 | a | |||||
1983 | 10.93 | a | 17.64 | 25.73 | a | 31.37 | 40.87 | a | 54.24 | a | 62.77 | a | 60.81 | 49.97 | 38.43 | c | 27.89 | c | -4.07 | a | 34.71 | |||||
1984 | 3.23 | 18.69 | c | 13.26 | 34.97 | a | 42.17 | b | 55.38 | d | 58.41 | b | 60.19 | 45.00 | a | 40.90 | a | 21.48 | g | 8.91 | h | 37.22 | b | |||
1985 | -1.07 | c | 4.00 | 24.42 | 37.21 | a | 47.83 | a | 49.63 | c | 57.60 | f | 55.59 | b | 49.10 | 36.03 | a | 18.70 | c | -2.90 | a | 28.96 | a | |||
1986 | 4.19 | 6.50 | 22.42 | 37.48 | a | 46.87 | 52.69 | a | 60.74 | 54.03 | a | 49.66 | a | 37.03 | a | 18.90 | 14.17 | a | 33.72 | |||||||
1987 | 11.66 | b | 16.88 | b | 25.40 | a | 37.13 | 48.77 | a | 57.00 | b | 62.77 | 57.90 | ----- | z | 32.97 | 29.31 | d | 18.77 | 36.23 | a | |||||
1988 | -0.97 | b | 0.96 | a | 21.21 | b | 33.41 | a | 46.65 | 56.00 | 60.74 | 61.50 | e | 49.86 | h | 28.21 | g | 26.08 | d | 14.80 | p | 33.95 | c | |||
1989 | 6.37 | l | -5.14 | g | 12.96 | g | 32.38 | a | 44.94 | 51.15 | c | 58.75 | k | 54.88 | n | 44.22 | l | 36.03 | a | 18.60 | j | -4.50 | i | 41.12 | h | |
1990 | 12.90 | j | 6.82 | k | 22.24 | b | 35.41 | a | 40.93 | d | 55.26 | c | 56.86 | c | 57.13 | a | 49.57 | i | 32.38 | e | 25.78 | c | 14.14 | j | 40.75 | d |
1991 | -2.33 | j | 9.00 | g | 22.25 | g | 38.00 | a | 50.81 | e | 60.00 | f | 58.52 | b | 56.84 | f | 45.12 | e | 34.39 | c | 16.53 | k | 8.67 | j | 45.37 | g |
1992 | 11.14 | j | 16.85 | i | 19.96 | f | 31.71 | b | 45.33 | d | 51.46 | f | 52.45 | i | 50.33 | j | 43.74 | k | 34.23 | e | 24.06 | n | 16.59 | n | 37.09 | i |
1993 | 1.53 | l | 3.83 | j | 15.92 | g | 32.41 | c | 47.00 | g | 51.00 | i | 58.50 | k | 58.17 | g | 42.15 | j | 33.60 | k | 24.32 | h | 16.00 | k | 32.41 | k |
1994 | -8.40 | f | -1.10 | g | 21.88 | e | 34.37 | c | 43.68 | c | 56.12 | d | 57.48 | j | 54.58 | g | 49.58 | k | 39.36 | i | 27.76 | i | 17.20 | k | 39.01 | h |
1995 | 6.95 | k | 6.30 | h | 20.83 | g | 30.11 | b | 45.32 | c | 57.70 | g | 59.95 | l | 62.76 | j | 43.29 | i | 39.26 | h | 15.48 | i | 4.47 | p | 37.71 | j |
1996 | -4.67 | j | 7.32 | g | 11.38 | j | 30.26 | c | 43.57 | a | 53.89 | k | 56.05 | k | 55.59 | i | 47.27 | h | 35.82 | c | 16.00 | i | 6.95 | k | 36.55 | i |
1997 | -0.75 | k | 11.65 | h | 20.14 | j | 30.59 | a | 40.80 | a | 54.67 | i | 57.68 | i | 54.12 | g | 49.05 | j | 37.12 | f | 20.05 | k | 21.14 | i | 35.69 | j |
1998 | 11.26 | h | 21.88 | k | 24.56 | f | 37.57 | 50.18 | i | 53.05 | i | 59.74 | h | 57.09 | h | 48.86 | h | 37.29 | g | 29.77 | h | 18.15 | k | 37.57 | k | |
1999 | -0.22 | m | 16.05 | i | 23.75 | g | 37.90 | a | 47.33 | j | 52.95 | h | 62.74 | h | 55.91 | i | 44.29 | i | 34.46 | g | 30.68 | b | 13.36 | i | 34.29 | j |
2000 | 1.60 | k | 17.09 | g | 29.10 | a | 33.87 | 48.64 | f | 54.50 | h | 58.26 | l | 58.04 | g | 45.38 | i | 41.79 | g | 26.83 | g | -3.68 | l | 31.48 | j | |
2001 | 9.85 | k | 1.62 | l | 18.59 | i | 37.96 | e | 46.58 | g | 56.32 | h | 57.62 | g | 59.00 | f | 44.00 | m | 36.12 | g | 35.22 | c | 22.24 | n | 36.59 | j |
2002 | 14.24 | j | 16.47 | i | 16.38 | g | 34.72 | e | 40.54 | c | 54.07 | p | ----- | z | 58.29 | x | ----- | z | ----- | z | ----- | z | ----- | z | 37.63 | j |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.35 | 6.56 | 19.60 | 33.78 | 44.70 | 53.70 | 58.56 | 56.21 | 47.03 | 36.48 | 24.82 | 9.25 | 32.37 | |||||||||||||
S.D. | 6.38 | 5.82 | 5.54 | 2.68 | 3.61 | 2.46 | 2.17 | 2.45 | 2.47 | 3.46 | 4.27 | 6.62 | 1.33 | |||||||||||||
SKEW | 0.06 | 0.54 | -0.02 | 0.06 | 0.29 | -0.66 | 0.08 | 0.34 | -0.51 | 0.61 | -0.51 | -0.33 | 0.02 | |||||||||||||
MAX | 11.66 | 18.69 | 30.42 | 39.27 | 52.61 | 57.93 | 62.77 | 61.50 | 51.03 | 46.26 | 35.22 | 20.45 | 34.87 | |||||||||||||
MIN | -10.26 | -2.89 | 8.00 | 27.83 | 38.55 | 48.27 | 54.90 | 51.55 | 40.77 | 28.97 | 14.03 | -4.07 | 29.86 | |||||||||||||
YRS | 27 | 28 | 32 | 43 | 38 | 32 | 30 | 30 | 29 | 34 | 31 | 27 | 21 |