YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1956 | 37.06 | e | 33.05 | a | 38.00 | 47.00 | 52.68 | 52.75 | 62.55 | a | 60.27 | a | 57.50 | 46.03 | b | 45.50 | x | ----- | z | 48.69 | b | |||||
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 57.77 | t | 57.24 | 62.07 | 48.79 | 43.02 | 40.65 | 50.35 | g | |||||
1958 | 42.81 | 44.96 | a | 39.34 | 44.03 | 56.08 | 57.90 | 64.21 | 63.87 | 56.08 | 54.08 | 42.65 | 44.34 | 50.86 | ||||||||||||
1959 | 38.68 | 36.61 | 39.55 | 44.45 | 47.21 | 53.87 | 60.35 | a | 57.89 | 52.23 | 49.90 | 45.12 | 40.27 | 47.18 | ||||||||||||
1960 | 35.55 | 37.48 | 42.06 | 44.67 | 46.45 | 56.12 | 62.35 | 57.23 | 57.98 | 51.05 | 41.58 | 41.82 | 47.86 | |||||||||||||
1961 | 43.98 | 40.54 | 40.37 | 42.95 | 48.81 | 59.72 | 62.10 | 64.47 | 52.68 | 49.13 | 40.70 | 37.26 | 48.56 | |||||||||||||
1962 | 36.18 | c | 39.12 | 38.37 | 46.19 | a | 44.71 | 54.13 | 59.30 | a | 58.15 | 57.71 | a | 50.76 | 43.97 | 43.85 | 47.70 | |||||||||
1963 | 34.52 | 47.16 | 39.79 | 40.66 | a | 51.26 | b | 51.90 | a | 55.08 | 59.39 | 61.07 | 49.77 | 42.60 | 42.47 | 47.97 | ||||||||||
1964 | 36.55 | 38.64 | 38.29 | 40.82 | 46.53 | 53.23 | 57.73 | 56.69 | 53.57 | 53.10 | 39.71 | a | 34.77 | 45.80 | ||||||||||||
1965 | 39.68 | 39.12 | 43.21 | 45.10 | 46.19 | 53.77 | 61.89 | 60.08 | 53.77 | 54.84 | 44.67 | 35.61 | 48.16 | |||||||||||||
1966 | 37.29 | 37.29 | 40.44 | 45.77 | 50.13 | 53.80 | 57.06 | 59.34 | 57.32 | 49.42 | 43.68 | 39.34 | 47.57 | |||||||||||||
1967 | 38.74 | 39.39 | 37.39 | 39.03 | 50.02 | 58.22 | 61.15 | 66.92 | 61.20 | 50.15 | 45.15 | 35.45 | a | 48.57 | ||||||||||||
1968 | 37.40 | 45.84 | 43.35 | 41.72 | 49.00 | 53.98 | 60.94 | 58.68 | c | 56.35 | 47.89 | 43.56 | c | 34.93 | a | 47.80 | ||||||||||
1969 | 31.54 | d | 35.72 | a | 42.69 | 44.05 | 53.32 | a | 57.67 | 57.13 | 57.29 | 55.97 | 47.13 | 44.64 | a | 39.85 | 47.25 | |||||||||
1970 | 38.63 | 44.00 | 40.84 | 39.37 | 49.35 | 57.90 | a | 60.68 | 59.52 | 53.62 | 49.05 | 41.85 | 34.87 | 47.47 | ||||||||||||
1971 | 36.05 | 37.55 | 36.45 | 42.47 | 49.24 | 51.07 | 60.37 | a | 61.89 | 53.37 | 45.98 | a | 40.47 | 34.37 | 45.77 | |||||||||||
1972 | 33.13 | a | 39.83 | 43.19 | 39.60 | 51.15 | a | 54.07 | 62.50 | 63.02 | 54.13 | 48.87 | 42.24 | a | 34.72 | a | 47.20 | |||||||||
1973 | 34.65 | 42.29 | 38.47 | 44.37 | 52.44 | 54.80 | 60.68 | 57.08 | 57.27 | 47.76 | 37.63 | 40.32 | 47.31 | |||||||||||||
1974 | 33.29 | 37.23 | 40.11 | 42.95 | 46.11 | 55.73 | 58.60 | 60.53 | 63.85 | 52.58 | a | 43.42 | 38.65 | 47.75 | ||||||||||||
1975 | 38.03 | 37.45 | 36.95 | 38.93 | 49.29 | 53.07 | 60.66 | 56.42 | 61.70 | 46.92 | 39.55 | 40.44 | 46.62 | |||||||||||||
1976 | 40.35 | 37.50 | 37.53 | 43.00 | 49.04 | c | 51.42 | 58.97 | 57.66 | 58.08 | 51.34 | 47.95 | 41.97 | 47.90 | ||||||||||||
1977 | 40.31 | 44.30 | 37.87 | 46.85 | 44.73 | 56.38 | 57.74 | 64.60 | 53.12 | 49.50 | 39.92 | 39.63 | 47.91 | |||||||||||||
1978 | 40.40 | 41.52 | 45.35 | 42.88 | 47.71 | 57.30 | 59.56 | 59.19 | 53.72 | 51.70 | c | 38.36 | a | 32.11 | 47.48 | |||||||||||
1979 | 32.18 | 36.38 | 43.92 | 43.95 | 50.79 | 55.57 | c | 61.30 | a | 58.82 | 59.75 | 52.55 | 43.17 | 42.68 | 48.42 | |||||||||||
1980 | 34.40 | 43.74 | 38.68 | 46.75 | 47.82 | a | 51.05 | 59.45 | 57.02 | 57.40 | 52.82 | a | 44.35 | 43.66 | 48.09 | |||||||||||
1981 | 44.40 | 41.29 | 42.44 | 44.75 | 48.32 | 52.92 | 59.00 | 64.39 | 56.89 | b | 48.97 | 43.68 | 38.55 | 48.80 | ||||||||||||
1982 | 34.76 | 37.38 | 39.26 | 41.12 | 48.94 | 57.05 | 58.33 | b | 60.45 | 55.38 | 49.98 | 40.14 | b | 37.85 | 46.72 | |||||||||||
1983 | 42.53 | 42.27 | 42.55 | 44.63 | 52.74 | 53.20 | 57.29 | 60.44 | 54.17 | 50.55 | 40.77 | 32.26 | 47.78 | |||||||||||||
1984 | 40.97 | 41.64 | 43.02 | a | 41.25 | 47.56 | 52.66 | a | 59.81 | 60.32 | a | 55.63 | 45.29 | 39.43 | 33.53 | 46.76 | ||||||||||
1985 | 39.31 | 35.46 | a | 38.27 | 46.42 | 48.86 | b | 56.28 | 64.85 | 60.00 | 52.72 | 47.02 | 32.15 | 40.47 | 46.82 | |||||||||||
1986 | 43.20 | a | 39.16 | 45.65 | 42.47 | 49.63 | 59.10 | 57.02 | 65.50 | 52.60 | 54.31 | 42.93 | 40.19 | 49.31 | ||||||||||||
1987 | 37.55 | 41.59 | 43.19 | 49.23 | 53.28 | a | 58.72 | 58.11 | 62.60 | 60.05 | 55.27 | c | 44.16 | e | 34.47 | 49.85 | ||||||||||
1988 | 37.21 | 42.98 | 41.11 | 45.80 | 48.55 | 53.93 | b | 61.48 | 61.77 | 59.33 | 55.18 | 41.03 | a | 39.50 | 48.99 | |||||||||||
1989 | 37.06 | 32.12 | 40.24 | 49.92 | 50.34 | 57.62 | b | 57.60 | 58.50 | 60.42 | 48.58 | 43.69 | a | 41.52 | 48.13 | |||||||||||
1990 | 37.84 | 36.02 | 43.32 | a | 48.77 | 48.47 | 55.18 | 63.56 | 62.63 | a | 60.18 | 46.71 | 41.30 | 29.93 | a | 47.83 | ||||||||||
1991 | 38.35 | 47.29 | 39.18 | 42.63 | 46.29 | 51.57 | 62.89 | 62.42 | 62.30 | 52.76 | 43.23 | 40.60 | 49.13 | |||||||||||||
1992 | 41.95 | 46.10 | 47.35 | a | 48.52 | 57.03 | 59.68 | 62.79 | 64.05 | b | 57.68 | 51.53 | 42.23 | 34.05 | a | 51.08 | ||||||||||
1993 | 33.06 | 36.55 | 44.42 | 43.80 | 53.71 | 53.40 | 55.31 | 61.00 | 60.50 | 53.85 | a | 38.07 | 39.24 | 47.74 | ||||||||||||
1994 | 41.52 | 37.70 | 44.47 | 45.60 | a | 51.94 | 53.22 | 62.90 | 60.45 | 60.08 | 47.81 | 34.97 | 36.45 | a | 48.09 | |||||||||||
1995 | 39.89 | 42.96 | 41.26 | 44.00 | 51.87 | 55.30 | 62.16 | 58.68 | 59.60 | 48.26 | 46.20 | 39.94 | 49.18 | |||||||||||||
1996 | 37.15 | 39.52 | 42.52 | 46.22 | 47.40 | 54.92 | 65.00 | 63.85 | 55.75 | 48.90 | 41.86 | a | 37.81 | 48.41 | ||||||||||||
1997 | 38.08 | 39.09 | 40.89 | 44.03 | 55.92 | 54.67 | 60.47 | 63.87 | 59.70 | 47.48 | 45.07 | 37.94 | 48.93 | |||||||||||||
1998 | 39.77 | 39.63 | a | 42.03 | 45.32 | 48.39 | 55.92 | 64.52 | a | 63.90 | 60.37 | 48.50 | a | 41.47 | 35.23 | 48.75 | ||||||||||
1999 | 38.32 | 36.88 | 38.53 | 44.17 | 47.35 | a | 53.80 | 60.39 | 62.63 | 60.71 | a | 51.74 | 45.62 | 39.29 | 48.28 | |||||||||||
2000 | 35.31 | 39.95 | 40.42 | 48.32 | 49.48 | 58.47 | 60.22 | a | 60.27 | 57.87 | 48.92 | 37.67 | 39.73 | 48.05 | ||||||||||||
2001 | 39.79 | 38.34 | 42.65 | a | 42.77 | 53.06 | 53.07 | 59.66 | 62.18 | 59.77 | b | 49.10 | ----- | z | ----- | z | 50.04 | b | ||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 37.99 | 39.79 | 41.00 | 44.16 | 49.76 | 55.02 | 60.35 | 60.72 | 57.46 | 50.04 | 41.95 | 38.24 | 48.04 | |||||||||||||
S.D. | 3.15 | 3.56 | 2.58 | 2.71 | 2.92 | 2.40 | 2.45 | 2.69 | 3.13 | 2.61 | 3.00 | 3.44 | 1.08 | |||||||||||||
SKEW | 0.01 | 0.29 | 0.27 | 0.02 | 0.57 | 0.30 | -0.08 | 0.26 | -0.06 | 0.35 | -0.92 | -0.34 | 0.55 | |||||||||||||
MAX | 44.40 | 47.29 | 47.35 | 49.92 | 57.03 | 59.72 | 65.00 | 66.92 | 63.85 | 55.27 | 47.95 | 44.34 | 51.08 | |||||||||||||
MIN | 31.54 | 32.13 | 36.45 | 38.93 | 44.71 | 51.05 | 55.08 | 56.42 | 52.23 | 45.29 | 32.15 | 29.93 | 45.77 | |||||||||||||
YRS | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 46 | 46 | 46 | 44 | 44 | 43 |