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 | 58.40 | f | 46.73 | 33.58 | 14.27 | 19.10 | 28.42 | h | ||||
1960 | 6.16 | 7.69 | 3.10 | 32.53 | 40.42 | 47.13 | 50.58 | 53.87 | 46.70 | 33.13 | 24.87 | 5.19 | 29.28 | |||||||||||||
1961 | 0.55 | 9.61 | 19.87 | 28.80 | 35.81 | 48.71 | b | 53.81 | 51.97 | 45.07 | 34.77 | 19.57 | 5.90 | j | 31.68 | a | ||||||||||
1962 | -4.46 | g | -1.89 | a | 14.23 | 27.63 | 44.53 | a | 47.43 | 50.35 | 49.35 | 39.80 | 35.80 | a | 24.43 | 8.37 | a | 30.91 | a | |||||||
1963 | -9.13 | -5.25 | 14.45 | 29.63 | 37.29 | 48.90 | 52.58 | 48.87 | 41.63 | 38.10 | 24.47 | -0.26 | 26.77 | |||||||||||||
1964 | 6.58 | 4.24 | 14.97 | 30.97 | 44.97 | 49.67 | 56.69 | b | 51.97 | 44.93 | a | 32.87 | 26.93 | 4.10 | 30.74 | |||||||||||
1965 | 0.00 | -4.04 | 11.90 | 28.90 | 45.45 | 47.38 | a | 51.39 | 51.68 | 42.93 | 34.77 | 23.10 | 18.84 | 29.36 | ||||||||||||
1966 | -7.19 | 5.29 | 21.32 | 28.87 | 35.55 | 51.17 | a | 56.58 | 52.84 | 43.20 | 32.57 | a | 24.68 | b | 9.10 | 29.50 | ||||||||||
1967 | 4.81 | -6.50 | 12.94 | 30.97 | 36.23 | a | 52.13 | 52.26 | 48.26 | 41.13 | 32.07 | b | 20.20 | 10.35 | 27.90 | |||||||||||
1968 | 0.26 | 0.18 | a | 21.10 | 30.77 | 39.74 | 51.17 | 54.40 | a | 53.23 | 47.30 | 37.77 | 24.15 | d | 13.29 | n | 32.73 | a | ||||||||
1969 | ----- | z | 2.22 | a | 10.83 | a | 32.13 | 40.81 | 45.54 | b | 54.67 | a | 54.73 | a | 43.93 | c | 33.86 | b | 20.43 | g | 10.77 | 32.95 | b | |||
1970 | -4.58 | -0.12 | c | 12.41 | b | 32.07 | b | 42.79 | b | 51.48 | c | 56.55 | 51.58 | 44.89 | b | 37.74 | 24.13 | 9.45 | 29.87 | |||||||
1971 | -5.19 | 1.96 | 10.06 | 28.00 | 35.87 | a | 54.31 | a | 52.16 | 49.52 | 47.72 | a | 43.32 | 26.30 | 10.57 | a | 29.55 | |||||||||
1972 | -6.29 | -3.31 | 11.90 | 26.67 | 42.97 | 47.07 | 53.87 | a | 53.72 | b | 45.27 | 30.50 | a | 26.33 | c | 5.42 | 27.84 | |||||||||
1973 | 6.10 | 8.25 | 28.10 | a | 29.30 | g | 40.19 | d | 52.40 | e | 56.53 | a | 57.13 | a | 46.46 | b | 38.10 | a | 23.44 | c | 8.83 | a | 33.23 | a | ||
1974 | 4.17 | b | -0.75 | d | 17.40 | a | 31.59 | a | 38.10 | 45.67 | 55.30 | a | 50.73 | a | 38.13 | 31.74 | 23.93 | 11.48 | b | 28.96 | ||||||
1975 | 1.32 | 4.32 | 9.43 | a | 24.47 | 43.32 | 50.62 | a | 56.10 | 50.48 | b | 40.37 | 32.80 | a | 25.10 | a | 8.23 | 28.88 | ||||||||
1976 | -3.87 | 10.28 | 15.39 | 31.83 | 37.32 | 50.00 | 52.90 | 49.16 | 38.21 | a | 26.55 | 14.07 | b | -3.87 | a | 26.50 | ||||||||||
1977 | -9.56 | d | 5.43 | 23.97 | a | 34.07 | 47.03 | a | 48.48 | a | 55.54 | c | 48.42 | 47.66 | a | 31.67 | a | 22.10 | a | 10.55 | i | 32.25 | a | |||
1978 | -2.23 | e | -2.88 | d | 13.69 | b | 29.31 | a | 41.93 | a | 48.29 | b | 53.19 | d | 52.15 | e | 47.48 | c | 33.16 | f | 19.83 | a | 4.78 | d | 27.78 | a |
1979 | -9.72 | f | -5.88 | b | 15.34 | b | 27.90 | a | 37.32 | c | 48.30 | c | 53.86 | c | 51.30 | d | 46.32 | b | 31.77 | e | 20.39 | g | 14.17 | b | 32.04 | b |
1980 | 4.00 | c | 1.52 | b | 13.64 | f | 32.64 | e | 40.96 | c | 47.96 | d | 55.68 | c | 55.44 | d | 42.70 | c | 28.29 | g | 22.00 | i | 9.06 | m | 35.11 | d |
1981 | -1.04 | e | 8.07 | 20.07 | c | 32.82 | b | 36.90 | a | 51.79 | a | 52.26 | h | 53.58 | g | 40.68 | h | 31.05 | i | 25.62 | d | 10.27 | a | 23.06 | d | |
1982 | -9.15 | e | -1.59 | f | 15.58 | e | 27.32 | b | 45.64 | f | 43.48 | g | 57.29 | g | 49.57 | j | 42.56 | c | 33.81 | d | 22.50 | l | 17.80 | k | 22.02 | g |
1983 | 9.39 | c | 20.33 | d | 21.75 | g | 29.74 | c | 36.76 | b | 50.42 | f | 57.54 | g | 53.96 | f | 44.96 | f | 34.58 | e | 26.68 | e | 1.12 | g | 26.25 | f |
1984 | 0.15 | d | 13.90 | i | 12.64 | c | 34.24 | a | 38.54 | e | 53.61 | g | 53.90 | j | 55.17 | g | 39.76 | i | 34.12 | g | 22.44 | l | 9.83 | m | 21.39 | h |
1985 | -1.00 | g | 6.20 | h | 21.07 | c | 33.30 | c | 43.21 | c | 46.59 | h | 53.36 | c | 51.71 | g | 45.96 | f | 33.27 | e | 19.61 | g | -1.65 | h | 36.84 | g |
1986 | -1.19 | e | 4.40 | h | 16.87 | h | 35.62 | a | 44.52 | b | 45.52 | i | 57.82 | c | 50.75 | c | 47.29 | b | 33.48 | f | 17.04 | c | 13.08 | g | 35.98 | e |
1987 | 10.04 | d | 13.96 | a | 23.39 | 33.55 | a | 43.19 | d | 52.15 | c | 58.82 | c | 53.52 | d | 45.52 | a | 29.39 | c | 26.50 | d | 19.23 | 34.10 | |||
1988 | -4.23 | a | 0.96 | a | 18.80 | a | 30.17 | a | 42.03 | a | 51.41 | a | 57.57 | c | 57.45 | b | 44.72 | e | 27.08 | g | 26.62 | d | 8.80 | f | 32.55 | b |
1989 | 8.67 | a | -3.00 | b | 11.23 | a | 28.23 | 38.52 | b | 49.30 | 55.54 | c | 54.23 | a | 40.09 | g | 33.67 | d | 18.21 | b | -2.28 | b | 26.57 | a | ||
1990 | 11.39 | 6.56 | a | 22.24 | b | 34.14 | a | 39.58 | 51.11 | b | 53.70 | d | 54.22 | d | 47.83 | f | 31.00 | e | 24.79 | a | 8.86 | b | 30.69 | a | ||
1991 | -1.07 | a | 9.65 | b | 18.71 | 33.66 | a | 47.18 | c | 53.96 | e | 56.59 | d | 54.84 | f | 44.00 | e | 32.41 | i | 18.38 | a | 9.46 | c | 29.05 | b | |
1992 | 10.74 | 14.72 | 18.35 | 29.79 | b | 38.97 | b | 46.93 | a | 48.62 | o | 47.85 | d | 44.77 | 31.00 | g | 23.35 | d | 12.13 | 28.76 | b | |||||
1993 | 2.06 | 4.21 | 17.50 | a | 28.13 | 40.97 | b | 48.78 | l | 55.08 | g | 55.92 | f | 40.23 | d | 31.70 | d | 21.56 | e | 14.80 | a | 22.35 | c | |||
1994 | -8.48 | d | 2.43 | e | 18.10 | b | 29.41 | a | 38.68 | c | 51.73 | 52.08 | r | 51.91 | h | 43.15 | q | 34.84 | f | 25.25 | f | 14.40 | k | 21.98 | f | |
1995 | 9.56 | d | 6.93 | a | 21.76 | b | 26.77 | 40.18 | c | 53.22 | l | 54.86 | c | 60.53 | p | 43.18 | m | 34.96 | g | 14.82 | s | 2.47 | n | 26.67 | f | |
1996 | -5.12 | f | 3.29 | a | 11.97 | b | 26.60 | 37.94 | 51.48 | g | 52.81 | d | 53.00 | j | 45.62 | i | 31.33 | m | 16.29 | m | 9.25 | k | 26.52 | g | ||
1997 | 0.38 | b | 7.63 | a | 16.87 | a | 28.10 | a | 36.63 | d | 51.67 | l | 52.62 | w | 48.62 | r | 43.36 | s | 31.81 | o | 20.54 | q | 21.60 | p | 17.92 | g |
1998 | 14.00 | n | 18.00 | n | 24.27 | i | 34.15 | c | 45.05 | l | 48.33 | o | 55.35 | n | 51.92 | s | 41.40 | o | 34.60 | p | 28.27 | s | 24.83 | y | 34.15 | k |
1999 | -5.00 | r | 12.40 | m | 18.62 | o | 33.68 | e | 44.81 | o | 50.22 | l | 57.25 | o | 52.47 | p | 39.93 | o | 27.18 | t | 26.50 | n | 7.43 | x | 33.68 | k |
2000 | 4.25 | s | 8.75 | q | 25.31 | e | 28.83 | a | 44.45 | k | 50.73 | o | 54.43 | q | 52.56 | o | 40.83 | r | 37.27 | p | 27.42 | r | -5.12 | w | 27.07 | j |
2001 | 6.08 | s | 3.50 | n | 13.78 | m | 31.52 | g | 44.60 | k | 51.23 | q | 53.31 | o | 54.00 | n | 41.69 | n | 30.38 | r | 28.17 | r | 19.43 | x | ----- | z |
2002 | 12.00 | n | 9.92 | p | 12.56 | m | 28.68 | e | 33.90 | j | 51.78 | l | 56.74 | l | 52.59 | i | 46.12 | n | 31.56 | o | 22.50 | j | 19.91 | t | 28.68 | k |
2003 | 1.35 | n | -4.38 | l | 13.64 | q | 25.33 | r | 42.07 | q | 47.14 | w | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.70 | 3.71 | 16.56 | 30.41 | 40.33 | 49.73 | 54.53 | 52.02 | 44.06 | 33.74 | 22.78 | 9.08 | 29.17 | |||||||||||||
S.D. | 6.32 | 6.24 | 5.19 | 2.67 | 3.28 | 2.36 | 2.15 | 2.61 | 2.85 | 3.29 | 3.65 | 5.91 | 1.91 | |||||||||||||
SKEW | 0.05 | 0.46 | -0.06 | 0.03 | 0.39 | 0.04 | -0.07 | 0.27 | -0.57 | 0.71 | -0.99 | -0.29 | 1.07 | |||||||||||||
MAX | 11.39 | 20.33 | 28.10 | 35.62 | 47.18 | 54.31 | 58.82 | 57.45 | 47.72 | 43.32 | 26.93 | 19.23 | 34.10 | |||||||||||||
MIN | -9.56 | -6.50 | 3.10 | 24.47 | 35.55 | 45.54 | 50.35 | 47.85 | 38.13 | 26.55 | 14.07 | -3.87 | 26.50 | |||||||||||||
YRS | 33 | 34 | 36 | 41 | 37 | 29 | 30 | 27 | 29 | 27 | 29 | 25 | 13 |