YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 62.65 | u | 61.28 | e | 50.71 | b | 39.95 | 26.71 | 44.66 | h | ||
1963 | 16.00 | 36.59 | 35.50 | 44.18 | 58.00 | b | 63.60 | a | 72.19 | 69.18 | q | 63.10 | a | 53.30 | d | 36.31 | a | 25.06 | 45.80 | a | ||||||
1964 | 21.55 | 25.29 | a | 32.46 | e | 44.74 | a | 54.72 | a | 61.26 | a | 73.65 | 68.00 | e | 59.36 | e | 49.65 | k | 31.39 | c | 26.40 | b | 45.35 | a | ||
1965 | 29.71 | c | 30.55 | 30.65 | 45.27 | 53.22 | a | 60.92 | e | 69.23 | a | 65.85 | 53.59 | g | 48.21 | e | 41.42 | l | 26.57 | i | 48.18 | c | ||||
1966 | 23.37 | e | 25.13 | e | 35.48 | c | 44.34 | a | 54.64 | b | 61.72 | a | 71.07 | b | 67.04 | e | 61.60 | f | 45.37 | a | 38.75 | b | 24.72 | b | 44.69 | a |
1967 | 27.85 | a | 32.61 | 39.65 | 43.87 | 51.71 | b | 59.72 | 70.74 | 69.41 | c | 62.18 | 50.42 | 36.93 | 22.06 | 47.26 | ||||||||||
1968 | 23.10 | 31.59 | 38.32 | a | 40.85 | c | 52.58 | 64.00 | 69.97 | 63.88 | c | 56.17 | a | 48.37 | ----- | z | 26.74 | 46.87 | a | |||||||
1969 | 31.84 | c | 27.55 | 30.10 | b | 47.91 | a | 59.58 | 61.28 | 70.95 | 71.48 | 61.82 | 41.85 | 35.90 | 30.13 | 47.53 | ||||||||||
1970 | 28.74 | 33.64 | 35.32 | a | 40.23 | 55.05 | 62.67 | 70.69 | 70.29 | 56.20 | 42.85 | 37.92 | 25.18 | 46.57 | ||||||||||||
1971 | 28.44 | 30.30 | a | 35.00 | c | 44.21 | d | 52.98 | b | 63.38 | 70.82 | 71.66 | 55.78 | 44.00 | c | 30.33 | c | 23.58 | 45.87 | |||||||
1972 | 25.32 | a | 32.44 | d | 42.12 | c | 45.79 | b | 55.03 | 65.67 | 69.79 | 69.00 | 59.07 | 49.18 | 34.31 | a | 22.76 | 47.54 | ||||||||
1973 | 17.63 | 25.89 | 34.56 | 41.08 | 54.56 | 63.33 | 68.11 | 69.13 | 57.62 | 49.19 | 33.58 | 26.61 | c | 45.11 | ||||||||||||
1974 | 19.20 | a | 27.86 | 40.44 | 43.92 | 57.33 | a | 66.55 | 70.76 | 66.82 | 57.68 | 49.34 | 37.26 | a | 25.60 | k | 48.83 | a | ||||||||
1975 | 24.39 | 30.43 | 36.00 | 41.34 | a | 50.08 | 59.63 | 70.47 | 64.15 | 56.88 | 45.57 | c | 32.52 | 26.38 | o | 46.50 | a | |||||||||
1976 | 23.72 | d | 29.93 | 33.87 | 46.42 | 57.69 | 61.41 | a | 71.95 | 66.56 | 59.50 | 45.83 | b | 35.82 | 28.71 | 46.78 | ||||||||||
1977 | 25.31 | 33.70 | 35.11 | 49.13 | 52.81 | 67.93 | 70.26 | 67.50 | 59.93 | 49.90 | 38.36 | a | 31.71 | c | 48.47 | |||||||||||
1978 | 29.95 | u | 31.25 | j | 41.58 | 47.40 | 53.29 | b | 64.17 | 71.85 | d | 67.77 | g | 58.27 | d | 50.24 | n | 35.00 | w | 16.50 | s | 56.09 | f | |||
1979 | ----- | z | 29.25 | v | 33.28 | v | 43.85 | 54.65 | 63.04 | c | 70.92 | 68.03 | 62.70 | 49.52 | b | 29.32 | 27.53 | 52.17 | c | |||||||
1980 | 24.79 | 29.91 | 34.98 | 44.38 | 53.76 | 64.20 | 71.50 | 67.45 | 60.22 | 47.81 | 37.83 | 35.06 | 47.66 | |||||||||||||
1981 | 30.55 | 33.98 | c | 38.79 | b | 50.40 | 54.47 | 66.28 | 71.34 | 69.63 | 63.53 | 46.76 | 38.64 | a | 31.10 | 49.62 | ||||||||||
1982 | 27.48 | a | 27.32 | 37.66 | 41.67 | a | 53.77 | a | 61.03 | a | 69.98 | a | 70.63 | a | 57.97 | a | 44.82 | 31.70 | 27.42 | 45.96 | ||||||
1983 | 30.75 | a | 32.41 | 36.97 | a | 39.92 | 50.45 | 60.52 | 68.62 | a | 71.12 | a | 62.29 | a | 49.60 | 33.67 | c | 21.75 | i | 48.75 | a | |||||
1984 | 14.42 | a | 23.52 | c | 34.81 | b | 41.62 | a | 56.02 | c | 62.09 | c | 71.74 | 69.61 | 58.25 | b | 43.00 | b | 34.16 | b | 25.74 | 44.58 | ||||
1985 | 19.87 | a | 24.12 | 35.85 | d | 50.54 | d | 56.35 | a | 66.55 | a | 71.77 | 69.05 | a | 55.62 | a | 48.62 | c | 34.35 | d | 28.30 | c | 46.75 | |||
1986 | 28.95 | b | 35.07 | 44.59 | b | 47.81 | d | 53.71 | b | 67.23 | 68.50 | a | 69.34 | 55.98 | c | 48.13 | p | 35.52 | g | 26.38 | a | 49.76 | b | |||
1987 | 24.38 | a | 31.66 | 34.61 | c | 48.59 | b | 57.37 | 66.25 | b | 70.21 | 66.58 | a | 61.33 | a | 49.67 | d | 39.02 | i | 27.52 | f | 51.06 | b | |||
1988 | 21.32 | i | 30.00 | b | 33.41 | d | 46.36 | b | 54.39 | d | 69.33 | 73.53 | 69.73 | 58.32 | b | 52.44 | 37.07 | a | 25.39 | 50.00 | a | |||||
1989 | 21.26 | b | 18.81 | a | 41.56 | 51.47 | 56.68 | a | 63.89 | b | 74.52 | a | 67.91 | b | 59.88 | a | 49.73 | c | 41.60 | a | 23.27 | a | 47.55 | |||
1990 | 26.98 | 30.60 | b | 41.23 | 50.30 | 54.26 | 66.17 | 72.06 | 69.43 | b | 64.62 | a | 47.43 | d | 36.79 | a | 15.17 | a | 47.92 | |||||||
1991 | 20.15 | a | 30.56 | a | 36.81 | 44.33 | 55.48 | 65.07 | ----- | z | ----- | z | ----- | z | ----- | z | 33.83 | a | 24.92 | 38.89 | d | |||||
1992 | 24.45 | 34.48 | 42.10 | 52.72 | 59.02 | a | 65.21 | a | 66.76 | ----- | z | 60.61 | b | 52.84 | f | 31.19 | c | 24.48 | a | 46.10 | b | |||||
1993 | 22.16 | 22.71 | 41.10 | a | 46.31 | a | 56.27 | 62.29 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 41.81 | f | |||
1994 | ----- | z | ----- | z | ----- | z | 47.32 | 58.35 | 68.37 | g | 71.90 | k | 70.62 | f | 58.42 | l | 45.96 | e | 31.58 | e | 28.07 | i | 45.80 | h | ||
1995 | 28.63 | h | 34.33 | a | 39.00 | e | 43.45 | 49.27 | a | 57.86 | i | 66.59 | i | 69.58 | a | 60.36 | e | 45.87 | a | 39.46 | f | 31.04 | g | 48.84 | e | |
1996 | 23.26 | 25.88 | h | 37.83 | k | 47.85 | j | 54.25 | e | 64.14 | l | 71.21 | e | 67.10 | g | 55.25 | f | 39.35 | n | 36.35 | g | 28.07 | d | 44.20 | h | |
1997 | 23.93 | j | 28.03 | k | 36.30 | c | 37.74 | k | 56.40 | e | 65.21 | m | 71.95 | l | 68.82 | i | 62.04 | g | 46.64 | m | 34.76 | m | 24.92 | l | 46.35 | j |
1998 | 30.88 | g | 32.91 | e | 41.39 | m | 44.34 | h | 55.00 | n | 59.34 | h | 73.14 | c | 71.38 | k | 64.93 | p | 46.11 | v | 40.59 | m | 24.19 | 43.42 | i | |
1999 | 33.08 | 34.04 | a | 41.39 | c | 43.96 | b | 53.48 | b | 63.27 | b | 71.20 | a | 68.59 | d | 58.02 | b | 49.75 | c | 40.00 | b | 29.89 | c | 48.89 | ||
2000 | 31.88 | e | 33.85 | c | 39.33 | d | 49.54 | f | 58.91 | i | 64.44 | d | 71.57 | a | ----- | z | 57.31 | d | 47.13 | l | 24.18 | k | 26.53 | 46.42 | e | |
2001 | 22.79 | b | 29.94 | b | 40.53 | a | 47.61 | c | 57.65 | 66.09 | c | 72.76 | d | 71.21 | b | 61.81 | a | 49.62 | g | ----- | z | ----- | z | 52.27 | c | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 24.79 | 30.11 | 37.35 | 45.52 | 54.85 | 63.83 | 71.00 | 68.58 | 59.49 | 47.76 | 35.39 | 26.34 | 47.13 | |||||||||||||
S.D. | 4.70 | 4.08 | 3.50 | 3.33 | 2.42 | 2.44 | 1.62 | 2.00 | 2.49 | 2.84 | 3.22 | 3.59 | 1.33 | |||||||||||||
SKEW | -0.20 | -0.82 | -0.01 | 0.26 | -0.18 | 0.18 | -0.29 | -0.59 | 0.18 | -0.29 | -0.07 | -0.43 | -0.13 | |||||||||||||
MAX | 33.08 | 36.59 | 44.59 | 52.72 | 59.58 | 69.33 | 74.52 | 71.66 | 64.62 | 53.30 | 41.60 | 35.06 | 49.62 | |||||||||||||
MIN | 14.42 | 18.81 | 30.10 | 39.92 | 49.27 | 59.63 | 66.76 | 63.88 | 55.62 | 41.85 | 29.32 | 15.17 | 44.58 | |||||||||||||
YRS | 32 | 34 | 35 | 35 | 37 | 34 | 34 | 29 | 32 | 29 | 28 | 29 | 16 |