YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 84.43 | h | 72.47 | 52.03 | 33.60 | 35.71 | 48.45 | h | ||||
1960 | 25.77 | 29.69 | 31.94 | 55.77 | 66.03 | 72.80 | 80.74 | 80.97 | 72.63 | 60.00 | 43.60 | 25.94 | 53.82 | |||||||||||||
1961 | 24.03 | 35.25 | 41.26 | 50.47 | 67.58 | 78.80 | 82.16 | 83.52 | 70.67 | 61.87 | 41.27 | 25.00 | 55.16 | |||||||||||||
1962 | 17.55 | 22.29 | 36.81 | 54.10 | 71.77 | 76.70 | 78.19 | 81.32 | 68.40 | 62.16 | 42.70 | 27.26 | 53.27 | |||||||||||||
1963 | 12.16 | 20.93 | 42.77 | a | 59.57 | 66.00 | 82.50 | 86.23 | 79.06 | 72.23 | 71.71 | 48.57 | 18.52 | 55.02 | ||||||||||||
1964 | 29.35 | 33.14 | 37.26 | 57.23 | 72.90 | 79.83 | 88.87 | 79.61 | 69.50 | 57.90 | 46.43 | 22.77 | 56.23 | |||||||||||||
1965 | 19.97 | 23.93 | 30.55 | 49.43 | 72.00 | 76.77 | 79.94 | 77.23 | 63.90 | 60.71 | 43.23 | 33.29 | 52.58 | |||||||||||||
1966 | 13.74 | 25.89 | 43.06 | 50.97 | 64.03 | 80.07 | 87.23 | a | 78.16 | 71.13 | 58.68 | 39.87 | 30.29 | j | 55.71 | a | ||||||||||
1967 | 22.86 | q | 23.14 | g | 36.84 | 54.90 | 61.41 | b | 75.31 | a | 79.48 | 77.35 | 72.30 | 56.55 | 38.31 | a | 29.35 | 58.18 | b | |||||||
1968 | 21.46 | g | 24.41 | 48.42 | 57.67 | 62.35 | 73.00 | 78.74 | 79.19 | 68.69 | a | 57.81 | 41.37 | 25.26 | 56.08 | a | ||||||||||
1969 | 17.35 | 28.96 | b | 35.27 | a | 57.72 | a | 70.17 | a | 67.67 | 80.13 | a | 84.68 | c | 73.53 | 54.83 | a | 40.07 | 27.48 | 53.16 | ||||||
1970 | 13.83 | b | 26.89 | 36.06 | 54.93 | a | 66.94 | 77.93 | b | 82.68 | 81.13 | 69.43 | 59.87 | 38.57 | 26.00 | 52.85 | ||||||||||
1971 | 15.00 | 24.41 | a | 33.06 | 56.64 | b | 65.35 | 78.70 | 77.48 | 78.06 | 71.17 | 63.90 | 41.33 | 26.68 | 52.65 | |||||||||||
1972 | 16.45 | 22.34 | 32.97 | 49.83 | 73.87 | 75.10 | 77.94 | 77.03 | a | 68.30 | 52.61 | 36.97 | 20.39 | 50.32 | ||||||||||||
1973 | 24.26 | 29.61 | 47.23 | 51.30 | 61.70 | a | 77.50 | 81.58 | 79.71 | 69.07 | a | 63.74 | 40.57 | 24.06 | 54.19 | |||||||||||
1974 | 21.26 | 25.64 | 37.03 | 56.03 | 63.13 | a | 73.27 | 83.03 | a | 77.90 | 66.47 | 58.03 | 42.13 | 30.74 | 52.89 | |||||||||||
1975 | 23.94 | 25.79 | 32.81 | 47.70 | 72.52 | 75.03 | 82.55 | 81.10 | 65.87 | 62.30 | a | 46.70 | 27.27 | a | 53.63 | |||||||||||
1976 | 18.16 | 32.86 | 39.97 | 60.00 | a | 66.77 | 80.38 | a | 84.45 | 82.87 | a | 73.00 | 54.14 | b | 35.40 | 18.45 | b | 53.87 | ||||||||
1977 | 9.32 | 28.00 | 45.55 | 62.70 | 78.48 | 76.50 | 83.33 | a | 75.81 | 69.17 | 57.03 | a | 38.90 | 22.32 | 53.93 | |||||||||||
1978 | 15.23 | 20.79 | 38.13 | 54.30 | 69.81 | 76.20 | 77.52 | 80.55 | 74.14 | a | 55.97 | 40.60 | 22.16 | 52.11 | ||||||||||||
1979 | 10.39 | 19.79 | 37.10 | 51.67 | 64.03 | 75.25 | b | 81.10 | a | 75.47 | a | 73.10 | 53.74 | 39.50 | 32.06 | 51.10 | ||||||||||
1980 | 21.45 | b | 24.28 | 34.35 | 57.77 | 72.39 | 76.10 | 83.57 | a | 77.93 | a | 66.87 | 52.58 | 43.22 | c | 25.58 | 53.01 | |||||||||
1981 | 25.55 | 30.15 | a | 43.06 | 56.63 | 67.13 | 75.33 | 79.13 | 77.55 | b | 68.97 | 54.03 | a | 47.21 | a | 25.55 | 54.19 | |||||||||
1982 | 12.97 | 26.04 | a | 35.13 | a | 50.67 | 71.62 | b | 71.63 | 82.52 | 77.55 | b | 66.67 | 56.87 | a | ----- | z | 32.77 | 53.13 | a | ||||||
1983 | 26.42 | 32.46 | 40.06 | 49.33 | 61.77 | a | 77.13 | 84.87 | 84.03 | 70.40 | 57.03 | 41.69 | a | 13.61 | 53.23 | |||||||||||
1984 | 22.00 | a | 35.14 | 33.71 | 57.40 | 64.00 | 77.52 | c | 80.00 | a | 81.60 | a | 68.21 | a | 60.50 | a | 40.40 | e | 28.22 | h | 56.41 | a | ||||
1985 | 20.86 | c | 22.86 | 44.13 | 59.73 | 73.39 | 72.57 | p | 81.80 | k | 75.97 | 68.23 | 56.55 | 33.29 | b | 15.84 | 47.08 | b | ||||||||
1986 | 23.45 | 24.25 | 41.16 | 60.23 | 70.94 | 76.86 | a | 80.16 | 74.97 | 68.69 | a | 57.45 | 36.47 | 29.55 | 53.68 | |||||||||||
1987 | 27.53 | a | 37.56 | a | 46.29 | 63.53 | 71.48 | 81.67 | 83.58 | 78.39 | ----- | z | 51.65 | 44.90 | a | 31.23 | 56.16 | a | ||||||||
1988 | 19.35 | 23.96 | a | 40.19 | 57.87 | 75.55 | 84.23 | 86.58 | 86.00 | e | 72.12 | f | 50.08 | g | 45.09 | s | ----- | z | 59.22 | d | ||||||
1989 | ----- | z | 24.08 | p | 35.33 | g | 54.73 | 68.13 | 75.92 | d | 85.81 | j | 80.18 | n | 71.89 | k | 61.77 | 39.00 | i | 17.90 | j | 65.14 | h | |||
1990 | 35.29 | j | 30.59 | k | 44.76 | b | 57.63 | 64.70 | d | 78.25 | b | 80.25 | c | 78.93 | a | 71.95 | i | 57.96 | e | 45.92 | d | 33.95 | k | 63.55 | d | |
1991 | 21.32 | i | 33.45 | h | 44.08 | g | 59.63 | 70.85 | d | 83.00 | f | 80.25 | c | 82.20 | f | 65.28 | e | 58.11 | c | 33.95 | k | 29.33 | j | 66.82 | g | |
1992 | 28.95 | j | 34.55 | i | 40.32 | f | 49.61 | b | 70.96 | d | 74.79 | f | 73.50 | i | 75.76 | j | 69.74 | k | 55.63 | d | 40.62 | n | 30.53 | n | 58.73 | i |
1993 | 23.89 | l | 23.84 | i | 39.62 | g | 50.81 | c | 66.96 | g | 71.76 | i | 77.15 | k | 79.62 | g | 63.55 | j | 56.26 | h | 40.41 | h | 29.15 | k | 50.81 | k |
1994 | 13.24 | f | 18.67 | g | 41.27 | e | 54.26 | c | 68.25 | c | 77.81 | d | 77.55 | i | 74.96 | g | 71.05 | k | 60.41 | i | 45.19 | i | 31.90 | k | 60.40 | h |
1995 | 23.30 | k | 28.45 | h | 40.25 | g | 48.82 | b | 65.25 | c | 80.83 | g | 82.55 | k | 82.57 | j | 67.52 | i | 59.17 | h | 32.38 | i | 25.00 | p | 57.04 | j |
1996 | 20.48 | j | 26.50 | g | 32.05 | j | 50.75 | b | 62.20 | a | 73.58 | k | 78.45 | k | 79.45 | i | 70.45 | h | 57.43 | c | 33.62 | i | 25.10 | k | 56.79 | i |
1997 | 20.10 | j | 29.85 | h | 38.86 | j | 53.93 | a | 60.40 | a | 78.29 | i | 78.23 | i | 73.71 | g | 70.60 | j | 57.28 | f | 34.78 | l | 33.55 | i | 57.17 | j |
1998 | 25.57 | h | 37.18 | k | 39.76 | f | 60.10 | 75.64 | i | 72.73 | h | 81.09 | h | 78.96 | h | 75.73 | h | 58.58 | g | 46.05 | h | 38.25 | k | 60.10 | k | |
1999 | 17.00 | l | 36.00 | i | 44.36 | f | 57.83 | a | 69.57 | j | 76.05 | h | 83.13 | h | 76.27 | i | 69.14 | i | 59.62 | g | 50.75 | b | 30.77 | i | 54.29 | j |
2000 | 22.70 | k | 35.68 | g | 49.50 | a | 54.73 | 69.76 | f | 73.73 | h | 78.30 | k | 78.21 | g | 70.24 | i | 64.21 | g | 40.26 | g | 14.63 | l | 52.12 | j | |
2001 | 28.50 | k | 23.53 | k | 37.41 | i | 57.76 | e | 67.71 | g | 75.77 | h | 81.04 | g | 80.80 | f | 69.22 | l | 58.04 | g | 53.19 | c | 39.65 | n | 55.47 | j |
2002 | 31.38 | j | 35.84 | i | 35.33 | g | 54.88 | e | 63.11 | c | 74.43 | p | ----- | z | 78.57 | x | ----- | z | ----- | z | ----- | z | ----- | z | 58.99 | j |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 19.53 | 27.05 | 39.30 | 55.15 | 67.87 | 76.83 | 81.81 | 79.45 | 69.60 | 58.03 | 41.83 | 25.73 | 53.38 | |||||||||||||
S.D. | 5.50 | 4.78 | 5.16 | 4.01 | 4.53 | 3.29 | 2.97 | 2.82 | 2.66 | 4.09 | 4.64 | 5.38 | 1.31 | |||||||||||||
SKEW | -0.12 | 0.55 | 0.23 | -0.04 | 0.21 | -0.26 | 0.55 | 0.55 | -0.14 | 0.98 | 0.37 | -0.34 | -0.20 | |||||||||||||
MAX | 29.35 | 37.56 | 49.50 | 63.53 | 78.48 | 84.23 | 88.87 | 86.00 | 74.14 | 71.71 | 53.19 | 35.71 | 56.23 | |||||||||||||
MIN | 9.32 | 19.79 | 30.55 | 47.70 | 60.40 | 67.67 | 77.48 | 74.97 | 63.90 | 51.65 | 33.29 | 13.61 | 50.32 | |||||||||||||
YRS | 27 | 28 | 32 | 43 | 38 | 31 | 30 | 30 | 29 | 34 | 31 | 27 | 21 |