YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 44.16 | 37.87 | 31.19 | 27.17 | a | 17.00 | a | 31.48 | g | |||
1949 | 4.24 | b | 20.25 | 27.06 | 31.48 | a | 38.03 | a | 38.53 | 41.97 | 41.24 | b | 38.10 | a | 28.55 | 30.03 | 23.32 | 30.24 | ||||||||
1950 | 5.58 | 20.54 | 25.55 | ----- | z | 31.52 | 41.59 | a | 45.74 | 44.90 | 38.90 | 38.06 | 30.57 | 31.33 | a | 32.21 | a | |||||||||
1951 | 23.35 | 25.96 | 29.29 | 33.80 | 38.65 | 42.10 | a | 45.35 | 43.87 | 40.03 | 36.32 | 29.50 | 21.97 | 34.18 | ||||||||||||
1952 | 20.74 | 26.55 | 28.97 | 34.14 | a | 40.42 | 44.50 | 45.23 | a | 44.52 | 41.87 | 35.35 | 23.77 | 26.97 | 34.42 | |||||||||||
1953 | 34.06 | 27.61 | 30.10 | 34.03 | a | 37.00 | 41.23 | 43.68 | 46.19 | 40.97 | 35.10 | 33.20 | 29.23 | 36.03 | ||||||||||||
1954 | 23.81 | 27.39 | 25.52 | 33.50 | 39.61 | 41.40 | 47.68 | 43.90 | 40.97 | 34.26 | 34.40 | 25.61 | 34.84 | |||||||||||||
1955 | 24.97 | b | 24.64 | 24.13 | 31.13 | 36.27 | a | 43.07 | a | 46.73 | a | 41.70 | a | 39.10 | 36.83 | a | 24.63 | 23.90 | 33.09 | |||||||
1956 | 26.00 | 21.11 | a | 27.61 | 33.53 | 41.00 | 42.13 | 47.16 | 45.84 | 41.10 | a | 36.35 | 26.21 | a | 27.03 | 34.59 | ||||||||||
1957 | 11.07 | a | 25.57 | 30.87 | 34.30 | 42.81 | 45.70 | 45.87 | 42.87 | 40.83 | 36.39 | 28.10 | 30.32 | 34.56 | ||||||||||||
1958 | 27.68 | 34.79 | 29.00 | 34.40 | 42.29 | 47.63 | 48.13 | 47.90 | 41.57 | 35.55 | 29.73 | o | 30.29 | 38.11 | a | |||||||||||
1959 | 25.90 | 27.50 | 31.13 | 34.13 | 36.55 | 44.07 | 45.77 | 44.03 | 43.13 | 36.90 | 26.17 | 26.19 | 35.12 | |||||||||||||
1960 | 20.03 | 26.31 | 28.52 | 35.17 | 37.90 | 42.60 | 46.90 | 45.06 | 41.03 | 36.61 | 31.07 | 23.71 | 34.58 | |||||||||||||
1961 | 26.26 | 33.57 | 31.97 | 34.53 | 39.23 | 45.50 | 46.61 | 48.74 | 38.30 | 34.68 | 26.87 | 26.32 | 36.05 | |||||||||||||
1962 | 22.65 | 26.89 | 29.06 | 35.47 | 38.68 | 40.83 | 44.03 | 45.61 | 41.07 | 36.32 | 33.63 | 29.29 | 35.29 | |||||||||||||
1963 | 17.13 | 30.36 | 30.87 | 33.60 | 39.20 | a | 44.00 | 44.42 | 45.84 | 45.00 | 38.87 | 33.33 | 25.53 | a | 35.68 | |||||||||||
1964 | 28.35 | 25.69 | 29.13 | 32.33 | 36.53 | a | 44.17 | 46.32 | 44.10 | 40.07 | 35.84 | 30.60 | 24.30 | a | 34.79 | |||||||||||
1965 | 27.52 | 28.36 | 25.71 | 35.03 | 37.16 | 42.90 | 47.45 | 49.23 | 38.50 | 38.87 | 34.53 | 25.71 | 35.91 | |||||||||||||
1966 | 27.06 | 26.57 | 28.71 | 32.87 | 39.00 | 42.53 | 45.10 | 45.45 | 44.60 | 36.16 | 33.47 | 31.19 | 36.06 | |||||||||||||
1967 | 31.03 | 29.00 | 29.71 | 31.07 | 37.84 | 45.27 | 46.45 | 48.40 | a | 45.52 | c | 38.41 | b | 30.70 | 25.80 | a | 36.60 | |||||||||
1968 | 26.42 | 31.82 | a | 33.23 | 32.45 | a | 39.10 | 44.67 | 47.83 | a | 47.32 | 43.03 | 35.61 | 32.11 | b | 23.77 | 36.45 | |||||||||
1969 | 14.50 | a | 26.54 | 27.47 | a | 33.48 | c | 40.50 | a | 48.03 | 46.06 | 45.28 | b | 43.90 | 34.14 | b | 29.50 | b | 27.07 | a | 34.71 | |||||
1970 | 25.03 | 30.59 | a | 29.90 | 30.46 | b | 37.58 | 47.59 | a | 49.20 | a | 44.52 | b | 39.14 | b | 35.50 | a | 31.63 | 26.74 | 35.66 | ||||||
1971 | 28.10 | 28.46 | 27.58 | 32.93 | 38.94 | 43.30 | 47.14 | c | 48.76 | b | 38.77 | 32.73 | a | 31.67 | 25.71 | 35.34 | ||||||||||
1972 | 23.23 | 26.59 | 32.94 | 32.18 | b | 39.10 | 45.47 | 43.04 | e | 47.84 | 39.37 | 34.27 | a | 32.30 | 20.47 | a | 34.73 | |||||||||
1973 | 22.58 | 27.54 | 31.16 | 31.79 | a | 39.31 | b | 43.72 | e | 45.62 | e | 45.26 | 42.90 | 36.19 | 30.80 | 30.71 | 35.63 | |||||||||
1974 | 18.39 | 30.07 | 30.06 | 34.97 | 37.55 | 45.00 | 47.00 | 46.16 | 39.74 | k | 34.03 | a | 33.70 | 28.52 | 35.04 | a | ||||||||||
1975 | 25.74 | 25.30 | a | 28.40 | a | 30.83 | 36.37 | a | 43.07 | a | ----- | z | 45.83 | b | 40.30 | 39.00 | 29.93 | a | 28.50 | o | 34.48 | b | ||||
1976 | ----- | z | 31.50 | q | ----- | z | ----- | z | ----- | z | ----- | z | 49.47 | p | 49.40 | f | 44.48 | c | ----- | z | 32.63 | c | 26.45 | 34.52 | i | |
1977 | 18.90 | 28.64 | 30.45 | 35.20 | 38.43 | c | 47.20 | 45.42 | 49.06 | 42.27 | ----- | z | ----- | z | 26.70 | d | 36.23 | b | ||||||||
1978 | 27.84 | 29.84 | i | 31.57 | a | 35.41 | a | 38.58 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 22.84 | e | ----- | z | 31.25 | g | ||
1979 | ----- | z | ----- | z | ----- | z | ----- | z | 39.65 | 43.97 | 47.70 | a | 46.87 | 42.90 | 37.32 | 27.07 | 29.74 | 39.40 | d | |||||||
1980 | 19.13 | 28.55 | 29.74 | 36.57 | 39.29 | 45.86 | a | 46.53 | a | 41.48 | 41.67 | 33.71 | 30.40 | 26.94 | o | 35.72 | a | |||||||||
1981 | 18.70 | k | 27.92 | c | 33.70 | a | 35.63 | ----- | z | ----- | z | ----- | z | 47.39 | c | 40.90 | 36.13 | 33.47 | 29.06 | 35.53 | d | |||||
1982 | 26.00 | b | 25.86 | 30.65 | 31.77 | 38.61 | 46.59 | a | 46.58 | 48.61 | 43.13 | 37.00 | 28.33 | 26.68 | 35.82 | |||||||||||
1983 | 30.58 | 32.68 | 34.71 | 33.27 | 38.84 | 44.33 | 47.29 | 50.16 | 40.47 | 36.55 | b | ----- | z | ----- | z | 38.89 | b | |||||||||
1984 | 28.83 | y | 28.79 | 32.61 | 34.37 | 37.84 | 43.07 | 46.42 | 47.94 | 41.67 | 33.94 | 32.20 | 22.07 | a | 36.45 | a | ||||||||||
1985 | 18.00 | 21.96 | 27.06 | 34.32 | b | 39.35 | 43.03 | 48.23 | 45.16 | 39.30 | 35.27 | a | 18.87 | 14.58 | 32.09 | |||||||||||
1986 | 28.55 | b | 27.93 | 34.06 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 34.90 | 31.00 | 24.87 | a | 30.22 | f | ||||
1987 | 22.00 | a | 28.14 | 32.42 | 37.53 | 41.58 | 45.23 | 47.87 | 44.13 | 41.07 | 32.65 | 32.30 | 24.71 | 35.80 | ||||||||||||
1988 | 21.05 | i | 27.07 | 30.35 | 35.73 | 39.16 | 45.00 | 46.97 | 44.90 | 41.27 | 40.03 | 33.23 | 25.40 | a | 37.19 | a | ||||||||||
1989 | 27.45 | b | 17.88 | b | 30.39 | 36.03 | 38.00 | b | 44.77 | 46.52 | 46.71 | 40.97 | 36.06 | 33.53 | 26.45 | 35.40 | ||||||||||
1990 | 29.93 | c | 24.89 | a | 30.39 | 37.40 | 39.57 | a | 45.13 | 49.39 | 48.97 | 43.23 | 36.19 | 33.40 | ----- | z | 38.04 | a | ||||||||
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1999 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2000 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 23.24 | 27.07 | 29.79 | 33.86 | 38.64 | 44.07 | 46.36 | 45.90 | 41.23 | 35.70 | 30.22 | 25.91 | 34.95 | |||||||||||||
S.D. | 6.54 | 3.49 | 2.44 | 1.78 | 1.90 | 2.04 | 1.58 | 2.23 | 1.98 | 2.16 | 3.53 | 3.57 | 1.36 | |||||||||||||
SKEW | -1.22 | -0.38 | -0.17 | -0.01 | -0.94 | -0.23 | -0.64 | -0.11 | 0.28 | -0.80 | -1.21 | -1.03 | -1.86 | |||||||||||||
MAX | 34.06 | 34.79 | 34.71 | 37.53 | 42.81 | 48.03 | 49.39 | 50.16 | 45.52 | 40.03 | 34.53 | 31.33 | 36.60 | |||||||||||||
MIN | 4.24 | 17.88 | 24.13 | 30.46 | 31.52 | 38.53 | 41.97 | 41.24 | 37.87 | 28.55 | 18.87 | 14.58 | 30.24 | |||||||||||||
YRS | 37 | 39 | 40 | 38 | 39 | 38 | 37 | 40 | 40 | 40 | 40 | 38 | 27 |