YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1969 | ----- | z | ----- | z | ----- | z | ----- | z | 59.80 | u | 61.48 | 63.05 | b | 62.66 | 61.52 | 54.57 | a | 50.02 | 46.00 | 57.04 | e | |||||
1970 | 47.06 | 49.62 | 49.15 | a | 47.18 | 54.65 | g | 60.88 | 64.08 | 63.19 | 58.73 | 54.94 | 48.43 | 41.47 | 53.16 | a | ||||||||||
1971 | 42.77 | a | 45.96 | 45.58 | 49.48 | a | 53.94 | 57.37 | 63.06 | 65.44 | 61.15 | 53.32 | 47.79 | a | 41.65 | 52.29 | ||||||||||
1972 | 41.39 | 47.38 | 51.63 | 48.27 | 56.32 | 60.88 | 66.08 | 65.76 | 59.57 | ----- | z | 49.90 | a | 40.69 | 53.44 | a | ||||||||||
1973 | 42.37 | 48.30 | 45.79 | 52.05 | 56.73 | 61.21 | b | ----- | z | 62.13 | 62.77 | 54.65 | 47.20 | 47.35 | 52.78 | a | ||||||||||
1974 | 41.68 | 44.66 | 48.58 | 50.30 | 54.41 | b | 59.76 | a | 63.87 | 63.41 | n | 65.07 | i | 55.32 | 49.80 | 46.40 | 51.48 | b | ||||||||
1975 | 45.94 | 46.11 | 46.29 | 46.78 | 55.10 | 59.97 | 64.76 | 63.34 | 64.35 | 54.65 | 46.83 | a | 46.60 | a | 53.39 | |||||||||||
1976 | 45.06 | 43.25 | a | 45.82 | 48.57 | 55.44 | 57.12 | 63.98 | 63.82 | 63.97 | 56.81 | 52.02 | 43.23 | 53.26 | ||||||||||||
1977 | 43.21 | 49.50 | 45.52 | 51.93 | 51.98 | 61.80 | 62.97 | 67.29 | 60.55 | 56.47 | 47.90 | 47.92 | 53.92 | |||||||||||||
1978 | 47.45 | 48.82 | 52.68 | 50.22 | 54.97 | 62.82 | 65.58 | 65.60 | a | 61.40 | 59.48 | 45.22 | 40.05 | 54.52 | ||||||||||||
1979 | 41.79 | 45.45 | 52.10 | j | 51.57 | 57.19 | 60.60 | 65.10 | 64.56 | 66.20 | 59.82 | a | 49.13 | 47.69 | 55.37 | a | ||||||||||
1980 | 43.47 | 49.79 | 47.56 | 53.02 | 55.45 | 58.21 | a | 64.74 | 63.52 | a | 62.86 | a | 58.35 | 51.03 | 47.58 | 54.63 | ||||||||||
1981 | 49.85 | 48.96 | 50.68 | 52.32 | 56.05 | 61.48 | 64.84 | 66.82 | 63.18 | 55.84 | 50.35 | 47.73 | 55.68 | |||||||||||||
1982 | 42.74 | 45.71 | 47.53 | a | 48.88 | 55.50 | b | 60.50 | a | 62.77 | a | 65.31 | 63.10 | f | 56.47 | a | 46.96 | b | 44.98 | b | 52.49 | a | ||||
1983 | 46.26 | 49.07 | a | 51.18 | a | 50.75 | 57.95 | b | 60.92 | 63.10 | a | 65.48 | c | 62.23 | 57.62 | b | 50.67 | a | 46.10 | b | 55.11 | |||||
1984 | 46.30 | a | 47.75 | a | 51.56 | 49.30 | b | 55.03 | b | 59.10 | a | 64.50 | a | 64.58 | 62.67 | a | 54.43 | b | 48.05 | a | 42.48 | a | 53.81 | |||
1985 | 43.25 | a | 44.55 | 45.23 | 53.72 | a | 54.55 | a | 62.08 | 66.28 | a | 64.34 | 60.12 | a | 55.15 | 43.21 | a | 42.97 | a | 52.95 | ||||||
1986 | 47.55 | 49.62 | 53.77 | 50.50 | a | 56.35 | a | 62.91 | c | 63.92 | 67.48 | b | 60.52 | a | 59.09 | d | 51.14 | a | 45.78 | a | 55.72 | |||||
1987 | ----- | z | 46.73 | 50.28 | a | 54.65 | 59.55 | b | 62.57 | b | 63.27 | 67.10 | 63.38 | a | 60.23 | a | 50.88 | a | 43.02 | 56.52 | a | |||||
1988 | 44.47 | 48.64 | 49.11 | 53.10 | 55.24 | 60.35 | 66.57 | c | 64.77 | 62.69 | a | 61.40 | b | 49.10 | a | 43.00 | a | 54.87 | ||||||||
1989 | 44.10 | 40.37 | a | 48.97 | a | 57.05 | a | 56.73 | 62.33 | d | 63.25 | c | 65.22 | a | 63.08 | f | 56.07 | b | ----- | z | 41.61 | c | 53.57 | b | ||
1990 | 43.04 | d | 41.39 | e | 49.62 | c | 53.02 | c | 54.06 | f | 59.71 | k | 66.40 | e | 66.32 | c | 63.94 | c | 51.96 | c | 45.75 | l | 35.96 | d | 52.41 | c |
1991 | 39.03 | a | 49.36 | f | 44.72 | f | 49.88 | n | 52.71 | e | 54.50 | t | 65.44 | n | 65.64 | q | 66.03 | o | 56.06 | d | 50.06 | n | 41.82 | f | 49.27 | i |
1992 | 42.14 | q | ----- | z | 51.88 | k | ----- | z | ----- | z | ----- | z | 65.12 | o | 66.37 | p | 62.07 | h | 55.88 | j | 56.24 | g | ----- | z | ----- | z |
1993 | 40.03 | n | 42.46 | c | 52.17 | m | 50.25 | p | 57.62 | o | 58.10 | j | 61.35 | d | 63.62 | o | 60.31 | l | 55.43 | c | 41.65 | 41.16 | f | 50.22 | h | |
1994 | 44.42 | a | 42.25 | d | 48.16 | f | 52.92 | x | 56.71 | q | 59.00 | y | 64.12 | g | 64.69 | o | 62.62 | n | 52.09 | h | 40.43 | h | 40.39 | q | 43.33 | j |
1995 | 47.30 | p | 48.61 | n | 47.41 | n | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 53.26 | h | 49.27 | o | 47.02 | j | ----- | z |
1996 | 42.97 | p | 46.13 | j | ----- | z | 53.40 | y | 50.76 | n | 59.50 | l | 66.58 | l | 64.56 | g | 60.02 | i | 58.10 | p | 48.26 | i | 44.30 | h | ----- | z |
1997 | 42.54 | g | 43.67 | j | 48.61 | i | 50.82 | m | 60.76 | d | 59.17 | o | 64.28 | v | 67.29 | j | 62.91 | h | 54.72 | h | 48.62 | j | 41.53 | n | 60.76 | k |
1998 | 46.45 | j | 45.28 | l | 48.31 | o | 49.36 | l | 51.83 | j | 59.30 | o | 66.12 | w | 64.79 | j | 63.31 | d | 53.38 | e | 46.32 | h | 39.40 | f | 58.35 | j |
1999 | 42.00 | g | 43.23 | o | 44.68 | q | 50.29 | p | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 44.24 | 46.36 | 48.83 | 51.08 | 55.81 | 60.68 | 64.25 | 64.99 | 62.26 | 56.31 | 48.44 | 44.10 | 54.18 | |||||||||||||
S.D. | 2.51 | 2.90 | 2.61 | 2.56 | 2.01 | 1.65 | 1.37 | 1.53 | 1.81 | 2.39 | 2.64 | 3.14 | 1.09 | |||||||||||||
SKEW | 0.24 | -0.56 | 0.15 | 0.32 | 0.56 | -0.74 | 0.07 | -0.07 | -0.01 | 0.45 | -1.04 | -0.68 | -0.12 | |||||||||||||
MAX | 49.85 | 49.79 | 53.77 | 57.05 | 60.76 | 62.91 | 66.57 | 67.48 | 66.20 | 61.40 | 52.02 | 47.92 | 55.72 | |||||||||||||
MIN | 39.03 | 40.37 | 45.23 | 46.78 | 51.98 | 57.12 | 61.35 | 62.13 | 58.73 | 51.96 | 41.65 | 35.96 | 52.29 | |||||||||||||
YRS | 22 | 23 | 20 | 21 | 21 | 21 | 22 | 21 | 20 | 24 | 21 | 22 | 12 |