YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1955 | ----- | z | 5.76 | k | 14.58 | 23.00 | l | 27.14 | i | 33.38 | f | 38.27 | e | 36.27 | e | 28.23 | 21.67 | a | 15.04 | e | 15.48 | b | 24.22 | e | ||
1956 | 18.03 | 5.92 | c | 15.50 | g | 25.74 | g | 32.43 | j | 33.54 | b | 38.82 | c | 34.35 | n | 28.58 | d | 26.00 | n | 10.00 | i | 9.31 | b | 22.37 | f | |
1957 | 1.06 | 15.30 | e | 20.33 | a | 23.89 | k | 32.71 | g | 36.04 | e | 36.74 | 34.55 | 28.48 | e | 25.58 | g | 12.08 | f | 12.17 | h | 24.64 | e | |||
1958 | 3.55 | 16.54 | 13.06 | 28.40 | 42.33 | a | 44.50 | 40.42 | 39.58 | 27.77 | 19.77 | 13.60 | 13.48 | 25.25 | ||||||||||||
1959 | 14.23 | 12.39 | 18.65 | 30.83 | a | 28.87 | 38.80 | 41.94 | 35.72 | b | 29.67 | 25.81 | 10.13 | -0.65 | 23.87 | |||||||||||
1960 | 3.55 | 4.14 | a | 18.90 | 25.93 | 27.84 | 41.10 | 41.03 | 33.35 | 28.08 | f | 25.00 | e | 13.07 | 3.74 | 21.61 | a | |||||||||
1961 | 5.80 | f | 21.96 | 19.19 | 25.60 | 31.35 | 40.03 | 40.97 | 39.45 | ----- | z | 13.13 | 9.17 | 5.83 | b | 24.67 | b | |||||||||
1962 | 0.29 | 16.61 | 9.94 | 19.70 | 30.59 | b | 31.34 | a | 33.00 | ----- | z | 31.55 | h | 22.50 | q | 9.31 | q | 2.13 | 17.95 | d | ||||||
1963 | -2.07 | c | 16.62 | b | 12.96 | d | 14.90 | i | 28.96 | h | 33.96 | f | 32.89 | l | 36.04 | c | 34.30 | j | 25.62 | g | 15.50 | l | 10.45 | k | 15.89 | h |
1964 | 4.14 | c | 0.79 | a | 7.48 | b | 21.38 | n | 27.17 | b | 35.53 | 38.16 | 33.61 | 21.35 | d | 18.48 | b | 11.54 | d | 15.03 | 19.39 | a | ||||
1965 | 14.32 | 11.96 | a | 10.38 | b | 25.32 | b | 25.21 | b | 33.53 | 38.42 | e | 37.57 | c | 24.11 | k | 19.03 | 20.59 | c | 8.16 | 22.23 | a | ||||
1966 | 8.23 | 4.15 | b | 15.65 | 16.93 | 27.90 | 32.76 | a | 37.10 | 36.29 | 32.67 | 18.35 | 21.93 | 9.60 | a | 21.80 | ||||||||||
1967 | 18.52 | 16.29 | 21.29 | 23.00 | 27.77 | 36.33 | 41.03 | 39.87 | 34.52 | e | 21.71 | 21.47 | 9.61 | c | 25.95 | |||||||||||
1968 | ----- | z | 22.21 | 19.48 | b | 19.30 | 27.23 | 34.38 | d | ----- | z | 38.65 | 29.37 | 22.15 | e | 20.81 | i | 13.69 | b | 25.16 | c | |||||
1969 | 16.39 | 7.74 | e | 7.97 | 23.31 | a | 32.34 | b | 39.22 | g | 40.00 | a | 35.24 | b | 31.20 | 21.90 | 14.12 | d | 13.60 | a | 22.16 | a | ||||
1970 | 17.03 | 17.56 | a | 18.06 | 20.10 | 30.29 | 37.13 | 42.39 | 38.61 | 23.00 | c | 18.10 | a | 24.29 | b | 12.32 | 24.91 | |||||||||
1971 | 17.03 | a | 15.32 | 16.00 | 24.40 | 31.32 | 35.66 | a | 39.81 | 41.23 | a | 24.55 | a | 21.23 | 15.65 | g | 7.10 | 24.88 | a | |||||||
1972 | 8.13 | a | 15.59 | 22.06 | 22.17 | 28.03 | 38.80 | 36.52 | 37.97 | 29.25 | b | 26.29 | 19.03 | 8.45 | 24.36 | |||||||||||
1973 | 6.74 | 12.43 | 20.10 | 23.72 | a | ----- | z | ----- | z | 40.40 | a | ----- | z | 30.38 | a | 21.62 | e | 25.79 | f | ----- | z | 22.20 | e | |||
1974 | 9.41 | d | 10.31 | b | 24.13 | a | 23.87 | 28.19 | 36.70 | 41.45 | 34.84 | 26.10 | 25.06 | 22.18 | h | 8.96 | e | 24.46 | a | |||||||
1975 | 4.00 | f | 12.30 | a | 20.53 | a | 22.21 | b | 27.36 | f | 34.07 | 44.00 | a | 35.81 | 27.97 | 26.90 | b | 16.21 | b | 17.45 | b | 25.74 | b | |||
1976 | 7.32 | 17.25 | a | 9.68 | c | 24.43 | 32.29 | 36.27 | 42.26 | ----- | z | 34.17 | 21.90 | ----- | z | 4.16 | 22.97 | b | ||||||||
1977 | 1.33 | a | 12.04 | b | 15.23 | 22.67 | 29.71 | c | 40.72 | a | 38.03 | 41.06 | 30.03 | 20.68 | 18.20 | e | 21.04 | d | 24.23 | |||||||
1978 | 18.21 | g | 21.79 | i | ----- | z | 25.56 | l | 27.26 | h | 32.96 | g | 38.68 | 33.92 | e | 31.50 | 19.45 | 16.03 | 9.67 | a | 24.88 | f | ||||
1979 | 3.27 | a | 17.33 | a | 18.23 | 24.41 | c | 30.26 | 33.60 | 39.84 | 39.74 | 28.83 | 26.87 | 12.17 | 12.13 | 23.89 | ||||||||||
1980 | 15.20 | a | 21.34 | 18.67 | d | 23.61 | l | 33.84 | 34.97 | 41.47 | a | 36.68 | c | 33.57 | 22.67 | a | 15.61 | b | 12.89 | c | 26.08 | a | ||||
1981 | 15.97 | 13.68 | 20.13 | a | 26.63 | 29.97 | 37.30 | 37.94 | 38.10 | 32.48 | a | 21.00 | g | 22.73 | 18.38 | g | 27.49 | b | ||||||||
1982 | 7.46 | e | 6.39 | j | 21.56 | d | 18.46 | d | 27.39 | 35.70 | 40.90 | 37.68 | 35.97 | 25.89 | c | 15.07 | 13.23 | a | 25.39 | a | ||||||
1983 | 19.84 | 17.43 | 26.94 | 22.77 | 30.10 | 36.43 | 37.55 | 44.65 | 32.67 | 26.23 | 23.90 | a | 16.48 | b | 27.91 | |||||||||||
1984 | 7.48 | 8.28 | 19.48 | 25.93 | 34.26 | 37.27 | 44.87 | a | 43.68 | 30.86 | b | 24.97 | 22.32 | b | 1.57 | h | 27.22 | a | ||||||||
1985 | -1.86 | c | 2.33 | a | 11.58 | 25.90 | 31.90 | 37.03 | 44.90 | 35.48 | 31.00 | 21.39 | c | 17.83 | 2.52 | 21.67 | ||||||||||
1986 | 16.61 | 22.89 | a | 25.10 | b | 27.47 | 29.87 | 38.50 | 37.71 | 41.48 | 30.50 | 23.67 | a | 18.93 | 8.06 | 26.73 | ||||||||||
1987 | 3.21 | b | 13.63 | a | 21.81 | 23.27 | 36.81 | 37.17 | 37.87 | 36.45 | 27.50 | 21.65 | 18.83 | a | 13.45 | b | 24.30 | |||||||||
1988 | 10.28 | f | 13.04 | b | 18.84 | 24.08 | d | 28.67 | a | 39.30 | c | 39.32 | 35.19 | 26.10 | a | 23.10 | 20.93 | b | 11.89 | c | 25.50 | a | ||||
1989 | 0.32 | f | 11.33 | a | 26.42 | 27.43 | 29.43 | a | 35.03 | 39.79 | b | 37.41 | b | 30.00 | 24.59 | b | 15.39 | b | 10.71 | 26.14 | a | |||||
1990 | 11.76 | f | 7.26 | a | 22.66 | b | 27.82 | b | 29.03 | b | 35.77 | d | 40.43 | c | 39.87 | a | 33.17 | 20.67 | d | 17.93 | a | 0.48 | d | 25.01 | a | |
1991 | 5.69 | b | 17.93 | 21.48 | d | 23.78 | c | 28.59 | b | 31.96 | b | 40.58 | 40.29 | 30.27 | 20.39 | 20.07 | a | 11.03 | b | 24.34 | ||||||
1992 | 9.83 | a | 17.92 | d | 20.56 | d | 25.23 | 29.52 | d | 34.32 | b | 35.94 | 32.29 | c | 28.79 | a | 26.09 | i | 14.37 | 12.57 | j | 24.88 | b | |||
1993 | 3.00 | a | 5.89 | 22.97 | b | 27.05 | h | 36.73 | e | 40.00 | i | 40.17 | m | 38.72 | m | 31.15 | d | 21.97 | 6.24 | a | 11.48 | 17.43 | d | |||
1994 | 12.94 | 2.30 | a | 19.47 | a | 25.03 | 35.17 | b | 35.48 | a | 40.06 | 39.06 | 31.00 | a | 26.17 | b | 13.54 | f | 8.79 | c | 25.04 | a | ||||
1995 | 19.50 | c | 21.67 | a | 24.07 | b | 28.26 | c | 33.32 | c | 35.11 | c | 37.79 | b | 35.26 | 30.45 | a | 19.10 | b | 12.61 | b | 12.65 | e | 25.82 | ||
1996 | 15.36 | c | 13.89 | b | 20.84 | 25.73 | 31.03 | a | 35.97 | 39.18 | c | 36.27 | e | 26.86 | i | 20.33 | g | 21.14 | h | 15.44 | m | 27.28 | d | |||
1997 | 13.00 | l | 13.14 | n | 17.29 | j | 25.86 | h | 29.85 | r | 36.12 | m | 38.95 | i | 35.76 | j | 33.10 | i | 23.65 | k | 19.47 | o | 12.24 | j | ----- | z |
1998 | 17.40 | p | ----- | z | 16.55 | i | 23.78 | l | 30.22 | m | 34.57 | i | 42.00 | j | 35.62 | o | 35.40 | j | 20.05 | k | 16.12 | m | 8.55 | i | ----- | z |
1999 | 9.56 | m | 3.58 | p | 15.05 | i | 21.74 | k | 27.61 | m | 34.17 | l | 35.83 | g | 37.38 | o | 24.86 | p | 19.44 | v | 13.00 | w | ----- | z | ----- | z |
2000 | ----- | z | ----- | z | ----- | z | 29.60 | y | 31.00 | y | 33.50 | v | 36.33 | y | 42.00 | u | 25.83 | x | ----- | z | ----- | z | ----- | z | ----- | z |
2001 | ----- | z | 9.10 | r | 26.27 | t | 25.75 | r | 32.36 | q | 38.60 | y | 40.00 | x | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2002 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 38.70 | t | 43.00 | c | 34.23 | e | 30.88 | e | 17.82 | i | 17.80 | y | ----- | z | 36.04 | i |
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 33.53 | o | 40.30 | h | 39.55 | k | 29.15 | j | 22.55 | i | 16.62 | v | 10.83 | y | ----- | z |
2004 | 4.27 | t | 14.50 | q | 17.62 | w | 25.45 | s | 30.56 | v | ----- | z | ----- | z | ----- | z | ----- | z | 27.00 | u | ----- | z | ----- | z | ----- | z |
2005 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 9.43 | 13.17 | 18.41 | 24.24 | 30.70 | 36.34 | 39.71 | 37.46 | 29.84 | 22.22 | 16.75 | 10.11 | 24.64 | |||||||||||||
S.D. | 6.70 | 5.92 | 4.94 | 3.00 | 3.39 | 2.69 | 2.44 | 2.86 | 3.05 | 3.08 | 4.51 | 4.86 | 1.69 | |||||||||||||
SKEW | -0.02 | -0.39 | -0.60 | -0.37 | 1.38 | 0.75 | -0.05 | 0.49 | -0.63 | -0.47 | -0.26 | -0.31 | -0.04 | |||||||||||||
MAX | 19.84 | 22.89 | 26.94 | 30.83 | 42.33 | 44.50 | 44.90 | 44.65 | 35.97 | 26.90 | 24.29 | 21.04 | 27.91 | |||||||||||||
MIN | -2.07 | 0.79 | 7.48 | 16.93 | 25.21 | 31.34 | 33.00 | 32.29 | 21.35 | 13.13 | 6.24 | -0.65 | 21.67 | |||||||||||||
YRS | 34 | 39 | 40 | 34 | 35 | 36 | 40 | 38 | 37 | 35 | 31 | 35 | 14 |