YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 63.66 | 59.00 | 44.97 | 25.62 | 23.84 | 43.42 | g | |||||
1949 | 11.29 | 20.11 | a | 31.48 | 42.63 | 48.50 | 55.77 | 64.03 | 62.71 | 55.73 | 42.11 | 40.55 | 24.15 | a | 41.59 | |||||||||||
1950 | 21.97 | 26.71 | 29.48 | 39.43 | 44.00 | 56.12 | 61.53 | 60.95 | 53.80 | 50.34 | 34.98 | 31.37 | 42.56 | |||||||||||||
1951 | 19.42 | 23.50 | 27.35 | 38.47 | 50.50 | 51.68 | 64.66 | 61.74 | 53.57 | 43.66 | 29.45 | ----- | z | 42.18 | a | |||||||||||
1952 | 21.80 | a | 21.59 | 23.92 | 41.00 | 49.95 | 60.68 | 63.60 | 63.39 | 57.05 | 48.34 | 26.23 | 23.15 | 41.72 | ||||||||||||
1953 | 30.77 | 23.09 | 34.58 | 36.57 | a | 45.32 | 59.32 | 66.66 | 62.89 | 56.83 | 47.18 | 37.33 | 23.78 | a | 43.69 | |||||||||||
1954 | 28.25 | a | 31.07 | 27.37 | 43.77 | 51.76 | 57.90 | a | 68.24 | 63.48 | 57.47 | 46.00 | 38.10 | 24.66 | 44.84 | |||||||||||
1955 | 21.53 | 18.84 | 25.98 | 39.52 | 50.00 | 55.53 | 66.69 | 65.35 | 56.75 | 45.98 | a | 28.72 | 29.19 | 42.01 | ||||||||||||
1956 | 27.42 | 16.86 | 28.73 | 39.57 | 52.50 | 60.45 | 62.65 | 60.58 | 57.22 | 47.65 | 28.50 | b | 23.38 | a | 42.12 | |||||||||||
1957 | 18.76 | 29.91 | a | 29.73 | 38.13 | 48.06 | 56.53 | 64.60 | a | 64.26 | 54.33 | 46.53 | 28.62 | a | 29.27 | 42.40 | ||||||||||
1958 | 23.85 | 32.67 | a | 26.37 | 37.57 | 54.39 | 58.82 | 61.58 | 65.13 | 55.73 | 46.29 | 35.78 | 29.89 | 44.01 | ||||||||||||
1959 | 23.56 | 24.59 | 28.32 | 40.35 | 49.10 | 62.05 | 63.84 | 63.08 | 53.07 | 42.08 | 32.15 | 27.47 | 42.47 | |||||||||||||
1960 | 21.81 | 16.79 | 30.85 | 41.35 | 47.79 | 56.97 | 63.21 | 62.47 | 58.00 | 46.89 | 32.60 | 23.00 | 41.81 | |||||||||||||
1961 | 22.53 | 26.12 | 31.15 | 36.77 | 50.15 | 59.68 | 63.35 | 63.63 | 48.42 | 43.77 | 28.43 | 19.71 | 41.14 | |||||||||||||
1962 | 16.17 | a | 25.05 | 23.98 | 42.73 | 50.11 | 56.00 | 62.13 | 61.31 | 54.05 | 46.74 | 36.40 | 28.10 | 41.90 | ||||||||||||
1963 | 14.61 | 29.38 | 29.98 | 39.62 | 51.02 | 57.23 | 65.13 | 63.24 | 59.27 | 51.05 | 36.67 | 25.32 | 43.54 | |||||||||||||
1964 | 19.67 | a | 16.69 | 21.97 | 37.60 | 49.39 | 55.00 | 67.11 | 61.73 | 53.81 | a | 45.94 | 32.27 | 23.74 | 40.41 | |||||||||||
1965 | 24.66 | 22.14 | 19.03 | 41.17 | 46.98 | 56.30 | 63.31 | 61.05 | 46.82 | 47.68 | 37.73 | 27.60 | 41.21 | |||||||||||||
1966 | 20.60 | 19.29 | 31.95 | 38.30 | 51.61 | 56.90 | 66.82 | 60.69 | 56.38 | 42.48 | 35.70 | 23.05 | 41.98 | |||||||||||||
1967 | 24.26 | 23.18 | 34.02 | 40.00 | 46.19 | 54.32 | 64.05 | 63.21 | 55.29 | a | 45.78 | a | 33.63 | 18.60 | a | 41.88 | ||||||||||
1968 | 23.61 | 26.10 | 30.53 | 34.45 | 46.63 | 58.58 | 64.52 | 60.53 | 53.03 | 45.95 | 28.65 | 21.19 | 41.15 | |||||||||||||
1969 | 27.66 | 23.89 | 20.69 | 42.95 | 53.47 | 53.02 | 64.26 | 65.56 | 56.92 | 34.38 | a | 30.43 | a | 25.95 | 41.60 | |||||||||||
1970 | 24.13 | a | 28.89 | 26.42 | 32.78 | 50.27 | 56.77 | 64.94 | 65.53 | 52.93 | 37.71 | 33.30 | 23.50 | 41.43 | ||||||||||||
1971 | 24.65 | 21.77 | 28.89 | 38.58 | 46.45 | 57.45 | 62.40 | 64.44 | 50.07 | 41.93 | a | 31.40 | 20.08 | 40.68 | ||||||||||||
1972 | 22.03 | 26.86 | 36.73 | 40.62 | 48.47 | 58.58 | 61.66 | ----- | z | 53.02 | 43.19 | 25.52 | 20.68 | a | 39.76 | a | ||||||||||
1973 | 17.31 | 22.66 | 27.03 | 32.82 | 46.79 | 55.30 | 61.08 | 63.03 | 52.35 | 46.03 | 31.16 | a | 25.45 | 40.08 | ||||||||||||
1974 | 20.05 | 24.06 | a | 34.38 | a | 38.53 | 49.79 | 58.52 | 63.40 | 58.11 | 50.87 | 45.56 | 31.92 | 20.05 | 41.27 | |||||||||||
1975 | 19.55 | 22.02 | a | 28.71 | 35.02 | 45.73 | 53.35 | 62.95 | 58.85 | 50.48 | 44.44 | 31.20 | 25.77 | 39.84 | ||||||||||||
1976 | 21.81 | 28.32 | a | 26.85 | 39.17 | 48.26 | 54.93 | 64.53 | 59.05 | 52.12 | a | 39.55 | 30.02 | 23.55 | 40.68 | |||||||||||
1977 | 20.79 | 26.30 | 25.95 | 41.66 | b | 48.16 | 59.93 | 63.00 | e | 59.29 | e | 53.28 | 44.40 | b | 29.88 | a | 25.55 | a | 41.52 | |||||||
1978 | 22.95 | 24.71 | 32.95 | 39.38 | b | ----- | z | 54.93 | b | ----- | z | 60.16 | 54.91 | a | 43.48 | 31.90 | 17.61 | 38.30 | b | |||||||
1979 | 12.65 | 24.20 | 30.26 | 38.42 | 46.32 | 55.00 | 61.69 | 59.45 | 54.62 | 43.37 | 23.28 | 28.32 | 39.80 | |||||||||||||
1980 | 21.77 | 27.62 | 27.97 | 36.43 | 47.77 | 56.52 | 62.79 | 60.15 | 53.40 | 41.82 | 32.23 | 33.45 | 41.83 | |||||||||||||
1981 | 29.77 | 27.48 | 33.24 | 44.75 | 45.74 | 57.73 | 62.61 | 61.37 | 56.43 | 41.76 | 35.25 | 26.63 | 43.56 | |||||||||||||
1982 | 21.40 | 24.63 | a | 32.77 | a | 35.63 | 46.05 | 53.55 | 60.58 | 63.23 | 52.18 | 38.63 | 27.22 | a | 22.74 | b | 39.88 | |||||||||
1983 | 26.44 | 27.18 | 29.98 | 31.83 | 43.23 | a | 53.07 | a | 60.13 | a | 63.60 | a | 54.38 | 44.23 | 29.03 | 17.45 | c | 40.05 | ||||||||
1984 | 17.48 | 20.50 | 26.37 | 30.62 | 47.97 | a | 53.24 | a | 61.66 | 61.33 | b | 51.21 | a | 36.24 | 32.09 | a | 22.77 | 38.46 | ||||||||
1985 | 16.40 | a | 17.36 | 29.79 | 40.17 | 48.79 | 55.25 | 61.85 | 58.34 | 47.76 | a | 40.92 | a | 27.37 | 19.58 | 38.63 | ||||||||||
1986 | 26.66 | 25.62 | b | 36.94 | 39.72 | 46.29 | 56.75 | 58.31 | 59.87 | 49.45 | b | 40.65 | a | 30.55 | b | 23.27 | a | 41.17 | ||||||||
1987 | 20.37 | a | 26.00 | b | 28.90 | 42.57 | 49.42 | a | 56.38 | b | 61.71 | c | 57.31 | 50.40 | a | 42.57 | b | 28.82 | 20.18 | a | 40.38 | |||||
1988 | 16.74 | 22.71 | 25.87 | 41.24 | a | 47.00 | c | 59.77 | 62.28 | a | 62.72 | a | 51.82 | 46.10 | 26.47 | a | 20.84 | 40.30 | ||||||||
1989 | 19.13 | 17.18 | 32.94 | 42.00 | 49.27 | c | 55.07 | 64.77 | 59.63 | 52.37 | 42.11 | 29.75 | 18.58 | 40.23 | ||||||||||||
1990 | 21.67 | a | 19.70 | a | 29.71 | 39.41 | a | 43.69 | 58.72 | 62.63 | 62.00 | 57.77 | 41.85 | 32.28 | c | 14.45 | 40.32 | |||||||||
1991 | 18.05 | 28.04 | 29.15 | 35.57 | 47.02 | 56.68 | 62.13 | 62.90 | 53.55 | 42.66 | 25.72 | a | 22.90 | a | 40.36 | |||||||||||
1992 | ----- | z | 26.41 | 32.74 | 42.55 | 49.60 | 54.95 | 58.86 | c | 59.92 | 53.36 | a | 46.42 | 24.26 | a | 20.84 | 42.72 | a | ||||||||
1993 | 23.00 | a | 20.11 | a | 30.05 | 35.10 | 48.16 | 54.23 | 59.52 | 59.97 | 51.71 | a | 39.68 | a | 23.95 | 21.40 | 38.91 | |||||||||
1994 | 23.67 | a | 22.15 | a | 32.21 | 40.22 | 51.50 | 58.09 | b | 61.11 | 61.85 | 55.10 | 41.47 | b | 29.07 | a | 27.42 | a | 41.99 | |||||||
1995 | 24.55 | c | 30.61 | 33.97 | b | 37.10 | a | 43.13 | 53.79 | b | 60.15 | a | 63.47 | 53.21 | a | 42.10 | a | 36.22 | a | 28.31 | 42.22 | |||||
1996 | 22.90 | b | 26.97 | 31.29 | 39.98 | 48.84 | 57.42 | 62.56 | 60.89 | 50.75 | 40.06 | 31.85 | 24.71 | 41.52 | ||||||||||||
1997 | 22.93 | a | 23.55 | 35.97 | a | 34.71 | a | 47.55 | a | 56.62 | 60.21 | 59.52 | 53.38 | 40.47 | 26.20 | 20.15 | 40.10 | |||||||||
1998 | 23.27 | 22.98 | 26.97 | a | 36.02 | 46.66 | 47.80 | b | 61.35 | 57.18 | 54.03 | a | 38.74 | b | ----- | z | ----- | z | 41.50 | b | ||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 21.76 | 24.08 | 29.45 | 38.69 | 48.27 | 56.38 | 62.92 | 61.68 | 53.71 | 43.53 | 30.93 | 23.73 | 41.32 | |||||||||||||
S.D. | 4.03 | 3.95 | 3.87 | 3.17 | 2.50 | 2.57 | 2.14 | 2.14 | 2.82 | 3.41 | 4.05 | 3.89 | 1.37 | |||||||||||||
SKEW | -0.25 | -0.10 | -0.37 | -0.50 | 0.10 | -0.49 | 0.28 | -0.13 | -0.20 | -0.28 | 0.23 | 0.16 | 0.25 | |||||||||||||
MAX | 30.77 | 32.67 | 36.94 | 44.75 | 54.39 | 62.05 | 68.24 | 65.56 | 59.27 | 51.05 | 40.55 | 33.45 | 44.84 | |||||||||||||
MIN | 11.29 | 16.69 | 19.03 | 30.62 | 43.13 | 47.80 | 58.31 | 57.18 | 46.82 | 34.38 | 23.28 | 14.45 | 38.46 | |||||||||||||
YRS | 49 | 50 | 50 | 50 | 49 | 50 | 49 | 50 | 51 | 51 | 50 | 49 | 45 |