YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1955 | ----- | z | 20.68 | k | 30.06 | n | 36.44 | l | 44.02 | j | 53.07 | g | 59.40 | e | 62.42 | e | 52.08 | 43.62 | a | 31.12 | f | 26.61 | c | 48.83 | g | |
1956 | 28.58 | 20.24 | d | 29.61 | h | 42.98 | h | 49.12 | j | 54.38 | b | 62.20 | c | 58.73 | p | 53.68 | e | 45.03 | n | 28.10 | i | 26.40 | b | 40.91 | f | |
1957 | 17.18 | 29.76 | e | 33.19 | b | 38.72 | l | 46.87 | h | 55.34 | e | 60.79 | 59.61 | 53.54 | f | 41.52 | g | 26.96 | g | 27.26 | h | 42.65 | f | |||
1958 | 21.47 | 30.74 | a | 26.87 | a | 40.05 | 58.65 | a | 58.95 | a | 61.57 | b | 63.53 | 52.87 | 40.42 | a | 32.72 | 29.90 | 43.14 | |||||||
1959 | 27.76 | 25.88 | 33.90 | a | 46.86 | a | 45.20 | c | 58.41 | a | 64.87 | a | 60.94 | e | 50.00 | a | 41.69 | b | 31.82 | 20.95 | a | 42.36 | ||||
1960 | 19.47 | 19.69 | c | 33.66 | 42.26 | a | 46.67 | a | 61.07 | 65.69 | 58.78 | a | 52.55 | h | 44.50 | f | 30.62 | a | 23.34 | 40.12 | b | |||||
1961 | 25.69 | g | 32.98 | 32.87 | 41.43 | 49.53 | a | 60.12 | b | 65.18 | a | 63.58 | ----- | z | 38.45 | 27.33 | f | 21.91 | b | 45.12 | c | |||||
1962 | 18.35 | a | 28.80 | 26.40 | 41.83 | a | 46.46 | d | 53.17 | a | 58.45 | ----- | z | 53.70 | h | 45.71 | s | 29.88 | q | 25.82 | 37.41 | d | ||||
1963 | 18.73 | c | 33.31 | b | 29.02 | d | 31.64 | i | 47.33 | h | 50.21 | f | 58.16 | l | 61.27 | c | 56.48 | j | 46.91 | h | 31.97 | l | 26.39 | l | 35.58 | h |
1964 | 20.20 | c | 19.00 | a | 24.15 | d | 39.71 | r | 46.96 | c | 51.98 | 62.63 | 58.82 | a | 47.38 | e | 44.52 | b | 28.90 | e | 26.29 | 39.17 | a | |||
1965 | 26.50 | 27.48 | a | 27.88 | b | 40.30 | c | 42.86 | b | 52.43 | 61.13 | e | 58.04 | d | 46.94 | m | 44.80 | a | 36.76 | c | 23.71 | 40.17 | a | |||
1966 | 22.35 | 20.38 | b | 31.92 | 37.88 | 50.78 | a | 54.28 | a | 62.37 | 60.85 | 55.27 | 41.21 | 35.57 | 22.38 | a | 41.27 | |||||||||
1967 | 28.52 | 29.84 | 34.29 | 35.18 | 46.73 | a | 52.68 | 64.29 | 64.29 | 57.12 | e | 44.71 | 36.58 | 21.73 | c | 43.00 | ||||||||||
1968 | ----- | z | 34.54 | b | 34.69 | d | 35.93 | 46.05 | a | 55.48 | f | ----- | z | 56.45 | a | 51.50 | a | 43.08 | e | 32.61 | k | 24.48 | b | 40.84 | d | |
1969 | 27.27 | 22.52 | e | 25.27 | a | 41.25 | d | 52.57 | d | 55.74 | i | 62.50 | b | 62.41 | b | 54.93 | 38.13 | 31.96 | e | 26.41 | b | 40.48 | a | |||
1970 | 26.94 | 32.31 | a | 31.75 | a | 33.88 | a | 47.83 | a | 55.68 | 62.91 | b | 63.42 | a | 46.86 | e | 38.77 | a | 35.04 | c | 23.79 | 41.60 | ||||
1971 | 27.71 | c | 28.96 | a | 29.55 | b | 38.66 | b | 47.33 | d | 53.74 | c | 62.27 | a | 65.02 | b | 48.55 | a | 39.16 | 31.02 | h | 19.10 | a | 41.82 | a | |
1972 | 21.34 | b | 28.88 | 37.73 | 38.30 | b | 48.43 | b | 57.57 | b | 61.45 | c | 61.86 | b | 49.50 | b | 42.77 | a | 30.32 | 20.76 | 41.58 | |||||
1973 | 20.87 | 27.39 | a | 31.45 | 38.64 | b | ----- | z | ----- | z | 62.67 | a | ----- | z | 52.03 | a | 42.80 | h | 35.13 | g | ----- | z | 38.84 | f | ||
1974 | 22.74 | d | 25.42 | b | 35.60 | b | 39.78 | 47.58 | 59.75 | 63.73 | 59.19 | 53.17 | 44.43 | a | 35.09 | h | 23.42 | e | 43.17 | a | ||||||
1975 | 21.39 | i | 25.33 | a | 30.48 | c | 33.04 | d | 43.93 | h | 53.00 | 64.63 | a | 58.29 | 52.52 | 44.22 | b | 30.39 | c | 30.72 | b | 42.26 | b | |||
1976 | 24.42 | a | 30.61 | a | 26.84 | c | 39.48 | 51.40 | 54.95 | 64.30 | a | ----- | z | 54.07 | 41.76 | ----- | z | 25.68 | 41.35 | b | ||||||
1977 | 20.42 | a | 30.24 | c | 28.87 | 42.50 | 43.57 | d | 60.16 | a | 61.48 | a | 61.85 | 52.38 | 44.45 | 34.54 | e | 32.46 | d | 42.74 | ||||||
1978 | 29.29 | g | 30.97 | l | ----- | z | 40.27 | o | 42.90 | k | 54.78 | g | 61.73 | 59.02 | f | 51.35 | 43.57 | a | 30.98 | a | 21.67 | a | 41.86 | g | ||
1979 | 17.60 | a | 27.85 | a | 33.16 | 39.20 | c | 47.23 | a | 55.72 | 62.52 | 61.02 | a | 55.42 | 46.11 | 27.90 | 28.20 | a | 41.83 | |||||||
1980 | 26.50 | a | 33.62 | a | 31.33 | e | 38.94 | m | 47.42 | 53.00 | a | 63.38 | a | 59.05 | c | 54.07 | 44.22 | b | 33.32 | b | 30.07 | c | 43.27 | a | ||
1981 | 31.71 | 29.95 | 34.50 | a | 42.12 | a | 45.29 | 56.30 | 61.10 | a | 62.34 | 54.64 | a | 39.24 | h | 36.95 | 30.62 | g | 45.49 | b | ||||||
1982 | 19.42 | f | 21.00 | j | 32.56 | f | 33.60 | f | 44.80 | d | 53.79 | d | 60.43 | d | 60.86 | c | 51.15 | c | 40.60 | f | 28.57 | a | 24.60 | b | 46.31 | e |
1983 | 30.76 | 28.87 | a | 35.88 | c | 35.24 | a | 45.07 | b | 52.76 | e | 58.52 | d | 63.20 | a | 52.92 | f | 44.83 | d | 34.63 | c | 24.66 | c | 41.31 | a | |
1984 | 20.90 | a | 23.39 | b | 31.68 | c | 35.96 | d | 47.75 | e | 53.37 | d | 63.38 | e | 63.28 | a | 51.71 | f | 38.67 | a | 33.76 | e | 18.09 | h | 41.21 | b |
1985 | 15.56 | e | 19.37 | b | 26.69 | b | 43.80 | e | 48.72 | h | 56.73 | d | 65.53 | a | 57.32 | f | 47.50 | d | 41.52 | g | 28.67 | c | 19.06 | 35.88 | c | |
1986 | 29.77 | 33.72 | a | 39.43 | c | 41.00 | f | 48.09 | d | 58.72 | c | 58.87 | d | 63.96 | e | 47.46 | f | 43.00 | f | 34.34 | e | 26.35 | a | 43.70 | c | |
1987 | 21.22 | d | 27.76 | a | 33.98 | b | 44.56 | e | 50.97 | b | 56.45 | a | 58.84 | f | 59.64 | c | 52.96 | e | 45.45 | b | 32.62 | a | 24.85 | e | 40.95 | a |
1988 | 24.26 | l | 28.30 | d | 32.39 | d | 41.34 | h | 46.90 | e | 58.36 | e | 62.79 | 60.65 | e | 50.04 | g | 48.61 | d | 31.34 | e | 23.91 | d | 43.70 | c | |
1989 | 15.98 | j | 25.00 | c | 36.76 | b | 43.60 | e | 45.96 | e | 54.82 | e | 63.46 | c | 59.21 | e | 51.17 | c | 41.65 | e | 32.09 | c | 26.58 | a | 43.66 | a |
1990 | 25.68 | i | 22.88 | b | 35.88 | f | 45.20 | e | 44.86 | f | 54.17 | f | 62.48 | g | 61.81 | d | 56.34 | b | 42.77 | i | 33.10 | e | 18.09 | i | 43.87 | g |
1991 | 21.48 | e | 33.68 | c | 32.29 | g | 37.48 | h | 44.60 | g | 52.17 | c | 63.28 | a | 63.30 | d | 53.36 | e | 42.78 | b | 32.98 | e | 27.31 | d | 43.37 | c |
1992 | 26.89 | c | 33.41 | g | 38.66 | f | 44.73 | 51.83 | e | 53.62 | e | 58.70 | d | 59.48 | f | 52.28 | a | 45.89 | i | 28.85 | c | 23.90 | j | 45.27 | e | |
1993 | 17.46 | c | 21.44 | c | 38.44 | d | 40.05 | j | 52.08 | e | 53.98 | j | 56.17 | m | 58.00 | m | 52.27 | h | 43.58 | g | 24.60 | d | 24.48 | a | 29.75 | f |
1994 | 27.66 | 20.68 | c | 36.31 | d | 42.09 | b | 50.86 | c | 55.74 | a | 63.93 | c | 63.22 | a | 56.85 | g | 46.04 | f | 29.61 | h | 24.63 | d | 42.79 | c | |
1995 | 31.72 | d | 37.98 | b | 37.21 | e | 44.06 | e | 48.48 | e | 53.66 | e | 60.52 | e | 60.10 | b | 52.52 | g | 41.90 | g | 35.15 | m | 29.68 | k | 46.72 | d |
1996 | 27.54 | e | 30.81 | e | 35.37 | e | 42.07 | c | 46.04 | e | 56.78 | a | 63.04 | d | 61.78 | h | 49.80 | j | 42.19 | j | 36.12 | j | 27.75 | m | 43.09 | e |
1997 | 25.45 | l | 26.96 | n | 34.70 | k | 42.58 | l | 50.67 | s | 56.18 | p | 61.65 | k | 60.93 | j | 56.25 | j | 44.25 | k | 36.43 | o | 26.74 | l | ----- | z |
1998 | 30.81 | r | ----- | z | 31.27 | i | 38.67 | l | 43.83 | m | 50.21 | i | 64.48 | j | 61.69 | o | 55.83 | j | 39.76 | l | 30.88 | m | 24.70 | i | ----- | z |
1999 | 25.53 | m | 22.00 | p | 31.48 | i | 36.34 | k | 44.44 | m | 53.14 | l | 60.77 | g | 61.06 | o | 49.57 | p | 45.06 | v | 38.50 | w | ----- | z | ----- | z |
2000 | ----- | z | ----- | z | ----- | z | 44.80 | y | 46.92 | y | 54.50 | v | 61.83 | y | 66.20 | u | 50.08 | x | ----- | z | ----- | z | ----- | z | ----- | z |
2001 | ----- | z | 24.15 | r | 41.05 | t | 40.71 | r | 52.86 | q | 53.60 | y | 60.50 | x | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2002 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.45 | t | 65.34 | c | 58.02 | e | 53.14 | e | 39.70 | i | 36.90 | y | ----- | z | 58.83 | i |
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 55.83 | o | 65.07 | h | 61.98 | k | 52.33 | j | 47.52 | i | 30.19 | v | 23.75 | y | ----- | z |
2004 | 20.59 | t | 26.54 | q | 35.00 | w | 43.41 | s | 49.78 | v | ----- | z | ----- | z | ----- | z | ----- | z | 43.65 | u | ----- | z | ----- | z | ----- | z |
2005 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 23.87 | 27.62 | 32.27 | 40.33 | 48.04 | 55.58 | 62.40 | 61.19 | 52.32 | 42.77 | 32.14 | 24.92 | 42.19 | |||||||||||||
S.D. | 4.65 | 4.91 | 3.95 | 3.55 | 3.14 | 2.62 | 1.99 | 2.15 | 2.61 | 2.66 | 2.98 | 3.16 | 0.72 | |||||||||||||
SKEW | 0.02 | -0.17 | -0.27 | -0.32 | 1.21 | 0.51 | -0.35 | -0.21 | -0.43 | -0.17 | -0.39 | 0.31 | 0.13 | |||||||||||||
MAX | 31.72 | 37.98 | 39.43 | 46.86 | 58.65 | 61.07 | 65.69 | 65.02 | 57.12 | 48.61 | 36.95 | 32.46 | 43.14 | |||||||||||||
MIN | 15.56 | 19.00 | 24.15 | 33.04 | 42.86 | 51.98 | 58.45 | 56.45 | 46.86 | 38.13 | 24.60 | 19.06 | 41.27 | |||||||||||||
YRS | 33 | 38 | 35 | 30 | 32 | 34 | 38 | 34 | 29 | 26 | 28 | 33 | 8 |