YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1961 | ----- | z | ----- | z | ----- | z | ----- | z | 54.54 | g | 64.21 | b | 66.45 | 69.56 | 58.20 | 53.76 | 43.95 | a | 40.31 | 56.63 | e | |||||
1962 | 37.81 | 41.78 | e | 43.55 | a | 51.40 | 50.13 | a | ----- | z | ----- | z | ----- | z | 60.86 | l | 51.84 | 46.50 | 41.10 | a | 45.51 | d | ||||
1963 | 34.16 | 48.00 | a | 44.32 | a | 46.55 | 54.27 | 58.35 | 61.13 | 64.84 | 63.77 | 53.87 | 45.47 | a | 38.97 | a | 51.14 | |||||||||
1964 | 40.53 | b | 41.14 | 43.34 | 47.10 | 51.21 | 58.11 | b | 63.92 | 62.90 | 59.03 | a | 53.79 | 41.53 | 38.63 | 50.10 | ||||||||||
1965 | 38.94 | 42.62 | 46.40 | 50.38 | 51.06 | 57.92 | 64.74 | 65.32 | 59.45 | 54.00 | 46.57 | 36.27 | 51.14 | |||||||||||||
1966 | 39.27 | 40.71 | 43.45 | 50.07 | 54.02 | 58.85 | 62.94 | 64.94 | 61.72 | 51.92 | 46.12 | 43.16 | 51.43 | |||||||||||||
1967 | 42.19 | 41.89 | 41.87 | 44.12 | 53.82 | 62.10 | 65.95 | 69.97 | 64.40 | 51.87 | 46.30 | 39.84 | 52.03 | |||||||||||||
1968 | 39.08 | 47.09 | 46.35 | 46.87 | 52.92 | 59.22 | 64.77 | 62.34 | 59.43 | 50.10 | 44.67 | 36.84 | 50.81 | |||||||||||||
1969 | 32.92 | 38.18 | 45.03 | 47.38 | 56.58 | 63.45 | 63.16 | 61.90 | 60.32 | 49.50 | a | 45.00 | a | 40.52 | 50.33 | |||||||||||
1970 | 40.08 | 44.52 | 44.95 | 45.02 | 52.97 | 62.12 | 64.37 | 63.24 | 56.71 | a | 50.45 | 45.13 | 38.00 | 50.63 | ||||||||||||
1971 | 38.39 | 40.41 | 40.50 | 46.33 | 53.39 | 54.88 | 64.79 | 66.60 | 57.67 | 49.26 | 43.02 | 37.30 | a | 49.38 | ||||||||||||
1972 | 37.10 | 41.47 | 46.40 | 44.15 | 55.61 | 59.23 | 66.23 | 66.60 | 57.67 | 51.84 | 44.52 | 34.52 | 50.44 | |||||||||||||
1973 | 36.58 | 43.20 | 43.53 | 48.67 | 54.98 | 59.00 | 64.31 | 61.50 | 60.82 | 50.81 | 41.93 | 42.73 | 50.67 | |||||||||||||
1974 | 35.94 | 39.59 | 43.79 | 47.35 | 51.16 | 60.00 | 63.50 | 66.00 | 65.95 | 53.63 | 45.65 | 42.05 | 51.22 | |||||||||||||
1975 | 41.50 | 39.64 | 42.24 | 44.40 | 53.10 | 57.65 | 64.31 | 61.84 | 62.57 | 50.63 | 42.92 | 41.85 | 50.22 | |||||||||||||
1976 | 40.42 | 40.72 | 42.35 | 46.20 | 53.32 | 56.17 | 62.87 | 62.61 | 61.70 | 52.92 | 46.77 | 37.60 | 50.30 | |||||||||||||
1977 | 36.94 | 44.16 | 42.45 | 49.93 | 50.35 | 60.00 | 62.63 | 68.53 | 58.32 | 52.21 | 42.65 | 42.58 | 50.90 | |||||||||||||
1978 | 40.35 | a | 44.30 | 48.05 | 48.22 | 51.34 | 61.38 | 65.37 | 64.74 | 58.08 | 53.77 | 39.15 | 34.76 | 50.79 | ||||||||||||
1979 | 30.50 | 40.56 | a | 47.02 | 49.22 | 55.24 | ----- | z | 65.15 | 64.16 | 62.42 | 55.34 | 42.33 | 42.84 | 50.43 | a | ||||||||||
1980 | 36.24 | 42.14 | 43.95 | 49.73 | 53.00 | 55.45 | 64.48 | a | 62.11 | 60.22 | 52.95 | 45.90 | 41.40 | 50.63 | ||||||||||||
1981 | 41.44 | 41.38 | 45.81 | 49.23 | 52.63 | 57.48 | 63.82 | 67.39 | 60.78 | 51.35 | 45.48 | 41.90 | 51.56 | |||||||||||||
1982 | 36.11 | 40.54 | 43.55 | 45.10 | 54.08 | a | 61.55 | 62.81 | 64.44 | 61.22 | 52.60 | a | 41.12 | 39.31 | 50.20 | |||||||||||
1983 | 41.60 | 45.13 | a | 47.26 | 49.05 | 55.74 | 58.17 | 61.89 | 64.55 | 58.07 | 51.88 | a | 46.32 | 34.64 | b | 51.19 | ||||||||||
1984 | 40.52 | 43.25 | a | 47.62 | b | 46.98 | 52.35 | 56.72 | 64.23 | a | 64.13 | a | 59.88 | 49.16 | 43.86 | a | 36.27 | 50.42 | ||||||||
1985 | 35.95 | 39.11 | a | 43.02 | b | 50.73 | b | 53.78 | a | 60.07 | c | 68.11 | 63.77 | 57.14 | b | 51.38 | b | 36.70 | 34.57 | a | 49.53 | |||||
1986 | 42.21 | 42.80 | a | 49.13 | a | 48.03 | 54.10 | 63.22 | 61.67 | a | 69.05 | 57.88 | 54.00 | 46.32 | 38.98 | a | 52.28 | |||||||||
1987 | 39.00 | 43.27 | 45.92 | a | 51.22 | a | 56.50 | a | 61.92 | 63.11 | 66.35 | a | 62.35 | 58.05 | a | 45.17 | a | 37.40 | 52.52 | |||||||
1988 | 37.19 | 42.98 | 44.79 | 49.78 | 52.66 | 58.33 | 65.32 | a | 64.90 | a | 61.48 | 56.73 | 44.53 | a | 38.47 | 51.43 | ||||||||||
1989 | 39.69 | 34.18 | 43.68 | 53.66 | b | 54.06 | 61.34 | a | 61.85 | 62.85 | 63.32 | 52.02 | 45.00 | 37.94 | 50.80 | |||||||||||
1990 | 40.50 | b | 38.48 | 46.53 | 52.00 | 52.71 | 59.30 | 67.42 | 66.50 | 64.05 | 50.40 | 44.20 | 32.61 | 51.23 | ||||||||||||
1991 | 38.35 | 47.12 | 43.06 | 48.05 | 51.34 | 56.05 | 65.74 | 66.02 | 64.24 | a | 54.08 | a | 45.34 | a | 40.10 | a | 51.63 | |||||||||
1992 | 42.24 | 48.52 | 51.58 | 53.15 | 59.37 | a | 62.77 | 66.35 | 67.30 | a | 60.33 | 54.71 | 50.75 | b | 42.03 | 54.93 | ||||||||||
1993 | 37.29 | b | 40.80 | 49.02 | a | 50.79 | a | 59.15 | 59.78 | 60.20 | c | 64.41 | b | 61.94 | c | 55.31 | 39.20 | c | 38.82 | 51.39 | ||||||
1994 | 42.02 | c | 40.19 | a | 48.27 | a | 49.78 | c | 57.60 | 59.41 | c | 68.18 | 67.29 | c | 66.28 | a | 52.17 | a | 40.55 | a | 40.47 | b | 52.68 | |||
1995 | 42.29 | b | 46.41 | 46.50 | a | 49.86 | a | 57.65 | a | 61.72 | 68.55 | c | 66.31 | b | 65.63 | 53.34 | b | 50.80 | c | 41.50 | b | 54.21 | ||||
1996 | 40.27 | a | 41.20 | a | 46.17 | d | 50.81 | a | 52.15 | a | 59.33 | f | 70.35 | g | 68.02 | a | 59.68 | 51.90 | a | 44.33 | a | 41.67 | b | 49.62 | b | |
1997 | 40.67 | b | 42.08 | c | 45.52 | a | 48.97 | a | 59.58 | a | 59.98 | e | 66.47 | k | 68.29 | b | 63.43 | 53.05 | a | 49.19 | c | 40.17 | k | 53.08 | b | |
1998 | 43.36 | i | 44.77 | b | 48.07 | b | 50.40 | a | 54.60 | b | 61.56 | f | 69.77 | e | 68.72 | b | 65.78 | c | 53.79 | c | 47.71 | i | 39.56 | f | 56.99 | d |
1999 | ----- | z | 41.18 | i | 44.69 | d | 50.54 | g | 53.54 | d | 61.02 | g | 67.65 | n | 67.67 | d | 63.88 | a | 53.07 | i | 47.55 | h | 42.23 | c | 54.40 | g |
2000 | 39.63 | h | 43.78 | f | 45.02 | f | 51.85 | g | 56.02 | g | 63.13 | g | 65.63 | e | 65.30 | i | 61.66 | e | 52.72 | f | 40.05 | h | 40.21 | l | 63.65 | j |
2001 | 39.33 | g | 40.75 | h | 46.36 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 38.79 | 42.28 | 45.26 | 48.67 | 54.00 | 59.59 | 64.60 | 65.46 | 61.22 | 52.64 | 44.46 | 39.19 | 51.19 | |||||||||||||
S.D. | 2.80 | 2.95 | 2.37 | 2.43 | 2.43 | 2.36 | 2.17 | 2.36 | 2.68 | 1.97 | 2.92 | 2.80 | 1.17 | |||||||||||||
SKEW | -0.90 | 0.03 | 0.39 | -0.15 | 0.71 | -0.01 | 0.30 | 0.08 | 0.18 | 0.43 | -0.28 | -0.51 | 1.43 | |||||||||||||
MAX | 42.29 | 48.52 | 51.58 | 53.66 | 59.58 | 64.21 | 69.77 | 69.97 | 66.28 | 58.05 | 50.80 | 43.16 | 54.93 | |||||||||||||
MIN | 30.50 | 34.18 | 40.50 | 44.12 | 50.13 | 54.88 | 60.20 | 61.50 | 56.71 | 49.16 | 36.70 | 32.61 | 49.38 | |||||||||||||
YRS | 36 | 37 | 38 | 37 | 38 | 34 | 36 | 38 | 39 | 38 | 37 | 37 | 32 |