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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1966 | ----- | z | ----- | z | ----- | z | ----- | z | 59.26 | 65.87 | 76.55 | 68.69 | 63.02 | 50.42 | 37.47 | 27.03 | 56.04 | d | ||||||||
1967 | 30.26 | 33.43 | 42.16 | 49.00 | 52.13 | 61.53 | 70.47 | 68.89 | 62.28 | 52.16 | 35.82 | 23.11 | 48.44 | |||||||||||||
1968 | 26.94 | 33.02 | 40.11 | 42.22 | 51.65 | 67.07 | 70.69 | 67.10 | a | 60.85 | 52.28 | a | 34.87 | 25.35 | 47.68 | |||||||||||
1969 | 27.35 | 32.23 | 31.15 | 50.40 | 59.60 | a | 61.25 | 74.24 | 73.87 | 65.18 | 40.66 | 37.13 | 29.85 | a | 48.58 | |||||||||||
1970 | 27.32 | a | 35.93 | a | 32.10 | 42.57 | a | 59.77 | e | 64.28 | 71.24 | b | 74.52 | 59.65 | 45.53 | 37.25 | 27.15 | 48.11 | ||||||||
1971 | 26.05 | 29.64 | 34.23 | 45.98 | a | 53.32 | 67.35 | 70.98 | 72.15 | 58.70 | 48.40 | 36.57 | 27.11 | 47.54 | ||||||||||||
1972 | 24.20 | a | 34.71 | 42.95 | a | 47.68 | 56.45 | 67.87 | 70.26 | 70.44 | 61.07 | 50.15 | 28.37 | 19.06 | 47.77 | |||||||||||
1973 | 24.19 | 31.54 | 37.39 | 42.33 | 55.00 | 66.12 | 70.81 | 73.56 | 59.75 | 52.29 | 35.10 | a | 28.29 | 48.03 | ||||||||||||
1974 | 21.27 | 33.54 | 40.06 | 46.30 | 58.21 | 66.93 | 73.87 | 67.77 | 58.87 | 52.35 | 36.78 | 28.08 | 48.67 | |||||||||||||
1975 | 28.53 | 28.45 | 35.61 | 44.37 | 54.50 | a | 63.95 | 73.35 | 71.48 | 59.93 | 51.26 | 33.70 | 32.44 | 48.13 | ||||||||||||
1976 | 27.10 | a | 37.28 | 35.68 | 48.07 | 56.52 | 67.15 | 74.60 | 71.52 | 62.95 | a | 47.45 | 35.20 | 32.21 | 49.64 | |||||||||||
1977 | 22.61 | 35.41 | 36.37 | 49.40 | 60.44 | 70.00 | 76.21 | 70.45 | 66.47 | 51.55 | a | 36.32 | 30.21 | 50.45 | ||||||||||||
1978 | 19.84 | 23.57 | 40.65 | 48.82 | 54.45 | 67.40 | 74.90 | 70.34 | 65.33 | 50.55 | 33.17 | 18.56 | 47.30 | |||||||||||||
1979 | 14.05 | 29.20 | 39.08 | a | 47.52 | 54.34 | 65.83 | 73.26 | 68.60 | 65.10 | a | 52.65 | 29.77 | 29.98 | 47.45 | |||||||||||
1980 | 19.97 | 27.97 | 34.17 | a | 44.95 | a | 54.50 | a | 69.00 | 76.34 | 72.02 | 64.38 | 50.00 | 36.63 | 37.25 | c | 48.93 | |||||||||
1981 | 31.39 | 30.68 | ----- | z | ----- | z | 53.74 | j | 68.28 | 73.55 | 68.33 | a | 63.78 | 49.26 | 40.50 | 29.50 | 50.59 | c | ||||||||
1982 | 23.90 | a | 29.56 | c | 37.63 | 44.33 | 53.58 | 60.62 | 72.00 | 71.70 | a | 60.57 | 47.21 | 32.23 | 28.77 | a | 46.84 | |||||||||
1983 | 31.48 | 33.88 | 36.63 | 39.10 | a | 50.95 | 60.43 | 71.26 | 73.90 | 62.86 | a | 50.02 | 34.38 | 13.62 | b | 46.54 | ||||||||||
1984 | 21.03 | 30.60 | 33.34 | 37.83 | a | 56.45 | a | 62.87 | 72.07 | a | 71.08 | 57.48 | a | 43.60 | a | 34.78 | a | 24.61 | l | 47.37 | a | |||||
1985 | 21.05 | l | 24.20 | 40.63 | 50.53 | 58.67 | a | 66.14 | a | 73.69 | 72.21 | 58.53 | 48.43 | a | 24.35 | ----- | z | 51.74 | b | |||||||
1986 | 28.88 | a | 30.75 | 44.05 | ----- | z | ----- | z | 67.98 | a | 71.82 | 69.53 | 59.70 | 47.93 | a | 35.70 | 28.08 | a | 48.44 | b | ||||||
1987 | 28.78 | a | 34.27 | 34.68 | 49.79 | b | 58.00 | f | 67.54 | b | 73.68 | a | 69.74 | 62.74 | g | 50.48 | 37.05 | 27.02 | c | 47.30 | b | |||||
1988 | 19.00 | 29.88 | 38.16 | b | 48.52 | 57.27 | a | 71.48 | 72.69 | 73.32 | 62.17 | 52.45 | 37.82 | 28.79 | 49.30 | |||||||||||
1989 | 30.56 | 21.18 | 41.40 | a | 49.21 | a | 59.06 | 65.17 | 75.31 | 69.55 | b | 61.15 | 50.60 | 40.32 | 24.50 | 49.00 | ||||||||||
1990 | 30.95 | 30.21 | 37.68 | 49.48 | 55.07 | a | 70.66 | b | 69.89 | 69.54 | e | 66.45 | b | 52.15 | 39.87 | 23.28 | b | 49.60 | ||||||||
1991 | 24.45 | 38.16 | 40.34 | 47.73 | 59.71 | 68.80 | 72.21 | 70.48 | b | 62.33 | c | 51.37 | 32.73 | 31.60 | 49.99 | |||||||||||
1992 | 30.03 | b | 38.02 | 42.90 | 52.07 | 59.23 | 64.97 | 70.18 | a | 67.45 | a | 63.80 | b | 52.13 | 31.38 | 18.26 | 49.20 | |||||||||
1993 | 20.68 | 25.05 | 41.41 | b | 45.41 | a | 56.50 | 62.95 | a | 69.97 | 68.95 | a | 55.76 | e | 46.61 | 29.25 | 28.95 | 45.96 | ||||||||
1994 | 29.43 | a | 23.84 | 40.78 | a | 46.34 | a | 60.32 | a | 71.41 | b | 72.10 | 73.23 | a | 64.25 | 49.60 | 35.00 | 33.65 | 50.00 | |||||||
1995 | 27.58 | 34.66 | 37.61 | 42.00 | 49.68 | 62.62 | 71.06 | e | 73.16 | 60.25 | b | 47.27 | 38.77 | 30.97 | 47.97 | |||||||||||
1996 | 24.76 | 31.33 | 34.27 | 46.27 | 56.18 | 66.93 | 71.81 | 70.35 | 59.25 | 49.37 | 34.10 | 29.23 | 47.82 | |||||||||||||
1997 | 24.82 | 30.52 | 40.74 | 39.77 | 55.55 | 65.84 | b | 72.20 | a | 68.07 | a | 62.26 | a | 47.67 | a | 33.98 | a | 28.74 | 47.51 | |||||||
1998 | 30.27 | a | 33.96 | 36.05 | 44.10 | 58.52 | 60.75 | 72.81 | 69.97 | b | 66.88 | a | 48.98 | 40.03 | 28.20 | a | 49.21 | |||||||||
1999 | 31.94 | 37.78 | a | 41.16 | 43.20 | 53.89 | 64.17 | 73.34 | 69.48 | 56.95 | 49.03 | 43.97 | 33.47 | 49.86 | ||||||||||||
2000 | 31.19 | 35.60 | c | 39.48 | 47.54 | b | 57.77 | a | 65.50 | 75.23 | a | 73.63 | 61.27 | 49.97 | 27.48 | a | 24.62 | a | 49.11 | |||||||
2001 | 28.15 | 25.29 | 37.69 | 47.50 | b | 55.11 | 65.59 | a | 75.13 | a | 71.33 | a | 63.33 | 48.39 | 40.33 | 29.93 | b | 48.98 | ||||||||
2002 | 28.00 | a | 30.38 | 30.58 | 48.28 | 55.35 | 69.17 | 72.53 | 71.13 | a | 62.08 | 43.29 | 34.95 | 32.23 | a | 48.17 | ||||||||||
2003 | 32.98 | 26.62 | b | 38.95 | a | 49.75 | 56.03 | a | 61.34 | a | 76.06 | 74.13 | a | 59.05 | 53.45 | a | 34.30 | b | 31.10 | 49.48 | ||||||
2004 | 29.74 | 29.93 | 42.94 | 48.47 | 59.10 | a | 62.93 | 69.98 | 67.56 | 64.00 | a | 50.77 | a | 35.91 | a | ----- | z | 51.03 | a | |||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 26.48 | 31.11 | 38.13 | 46.30 | 56.23 | 65.79 | 72.78 | 70.75 | 61.78 | 49.43 | 35.21 | 27.78 | 48.48 | |||||||||||||
S.D. | 4.39 | 4.31 | 3.50 | 3.44 | 2.78 | 3.03 | 1.97 | 2.11 | 2.76 | 2.79 | 3.90 | 4.80 | 1.08 | |||||||||||||
SKEW | -0.77 | -0.35 | -0.38 | -0.71 | -0.36 | -0.08 | 0.31 | 0.11 | -0.06 | -1.15 | -0.52 | -0.98 | -0.26 | |||||||||||||
MAX | 32.98 | 38.16 | 44.05 | 52.07 | 60.44 | 71.48 | 76.55 | 74.52 | 66.88 | 53.45 | 43.97 | 37.25 | 50.45 | |||||||||||||
MIN | 14.05 | 21.18 | 30.58 | 37.83 | 49.68 | 60.43 | 69.89 | 67.10 | 55.76 | 40.66 | 24.35 | 13.62 | 45.96 | |||||||||||||
YRS | 37 | 38 | 37 | 36 | 36 | 39 | 39 | 39 | 38 | 39 | 39 | 36 | 32 |