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 | 32.90 | e | 24.39 | 28.64 | j | |
1949 | 11.93 | d | 23.89 | 35.10 | 46.70 | 54.71 | 61.88 | 70.48 | d | 68.69 | e | 59.54 | c | 45.79 | 44.14 | b | 27.11 | 45.83 | ||||||||
1950 | 21.29 | c | 33.35 | a | 33.22 | b | 42.18 | 48.66 | b | 62.53 | a | 65.73 | a | 65.66 | 56.32 | 52.59 | b | 35.31 | d | 33.00 | a | 45.82 | ||||
1951 | 24.50 | 30.66 | 30.50 | b | 39.65 | 53.58 | 56.59 | b | 69.34 | 67.55 | 56.52 | 45.90 | 32.93 | 25.78 | a | 44.46 | ||||||||||
1952 | 27.73 | a | 30.83 | 28.39 | 44.27 | 52.26 | 67.43 | a | 69.90 | 70.13 | 62.43 | 49.03 | 29.05 | 28.10 | 46.63 | |||||||||||
1953 | 36.27 | 28.71 | 39.02 | 38.59 | a | 49.60 | b | 65.02 | 71.00 | 68.34 | 62.77 | 50.83 | b | 39.54 | g | 28.53 | b | 48.97 | a | |||||||
1954 | 31.67 | b | 39.75 | 28.76 | b | 49.40 | a | 52.50 | 64.13 | c | 73.48 | 69.21 | 62.93 | 48.57 | d | 39.52 | 30.98 | 49.24 | ||||||||
1955 | 22.07 | b | 22.91 | a | 30.70 | a | 45.28 | 54.32 | a | 58.98 | c | 71.40 | 69.32 | 59.85 | 50.52 | a | 31.02 | b | 33.29 | g | 46.94 | a | ||||
1956 | 29.19 | 24.91 | 35.52 | 41.88 | b | 55.71 | 68.22 | 69.22 | b | 66.74 | b | 61.82 | 51.03 | a | 34.50 | e | 31.13 | 47.49 | ||||||||
1957 | 19.50 | 35.07 | 33.39 | 39.08 | 50.35 | 61.65 | 70.74 | 68.82 | 57.96 | d | 48.74 | 30.89 | g | 36.35 | 47.42 | a | ||||||||||
1958 | 30.32 | 33.33 | a | 27.79 | b | 41.18 | 58.42 | a | 63.83 | 65.69 | 71.41 | b | 62.02 | 50.57 | b | 37.31 | a | 30.52 | 47.70 | |||||||
1959 | 27.40 | 24.65 | a | 33.05 | a | 42.00 | 52.39 | 66.98 | 70.06 | 71.29 | 57.87 | 45.32 | 33.98 | 33.29 | b | 46.52 | ||||||||||
1960 | 26.76 | 23.22 | 35.23 | 47.10 | 54.23 | 64.73 | 71.26 | 69.81 | 62.10 | 49.94 | 36.50 | d | 28.05 | 47.41 | ||||||||||||
1961 | 30.47 | 33.33 | a | 34.08 | 41.55 | 52.85 | 63.77 | 70.03 | 70.02 | 53.63 | 47.74 | 32.55 | 24.77 | e | 46.23 | |||||||||||
1962 | 18.23 | 28.88 | 31.84 | 47.72 | 56.39 | 61.58 | 67.34 | 68.28 | a | 59.73 | 51.59 | b | 40.23 | 32.58 | 47.03 | |||||||||||
1963 | 16.92 | 35.36 | 35.35 | 45.50 | a | 57.31 | b | 65.93 | 73.82 | 69.60 | b | 64.17 | a | 55.03 | 39.63 | 26.92 | 48.80 | |||||||||
1964 | 29.60 | a | 26.17 | 30.59 | b | 43.82 | 55.43 | b | 62.00 | a | 74.16 | 68.09 | d | 59.50 | 50.03 | 36.90 | 30.18 | a | 47.21 | |||||||
1965 | 32.50 | a | 28.59 | 25.39 | 48.45 | a | 53.22 | d | 61.35 | 70.58 | 67.48 | b | 52.45 | 53.05 | 41.50 | 31.69 | 47.19 | |||||||||
1966 | 24.23 | a | 26.19 | a | 39.63 | 41.72 | a | 56.40 | 62.68 | 74.23 | 66.50 | 61.19 | a | 47.34 | 37.65 | 28.48 | 47.19 | |||||||||
1967 | 31.45 | b | 32.39 | a | 42.54 | d | 45.77 | 50.37 | 60.18 | 68.98 | 66.56 | 59.82 | 50.08 | 35.38 | 22.57 | a | 47.17 | |||||||||
1968 | 28.47 | 32.67 | 38.10 | 40.72 | 49.77 | 64.05 | a | 68.68 | 65.11 | 58.22 | 50.23 | 34.00 | 26.08 | 46.34 | ||||||||||||
1969 | 29.71 | b | 30.44 | b | 29.76 | 48.43 | a | 56.23 | 58.98 | 70.93 | c | 71.15 | 62.43 | 39.19 | 36.62 | 31.00 | 47.07 | |||||||||
1970 | 28.05 | a | 35.20 | a | 29.28 | b | 40.33 | 55.62 | b | 62.52 | 70.71 | b | 72.08 | 57.15 | 43.52 | 36.43 | 28.32 | a | 46.60 | |||||||
1971 | 28.63 | a | 28.32 | 33.34 | 43.47 | 51.02 | 65.55 | 67.78 | b | 69.60 | 55.52 | 46.36 | c | 36.36 | b | 27.89 | 46.15 | |||||||||
1972 | 26.22 | a | 33.83 | c | 41.14 | b | 45.07 | a | 53.74 | 66.17 | 67.26 | 67.82 | 59.02 | 47.61 | 31.18 | b | 21.73 | 46.73 | ||||||||
1973 | 25.81 | 31.50 | 34.45 | 39.97 | 52.26 | 64.48 | a | 67.74 | 69.85 | 58.12 | b | 51.15 | 35.13 | 30.21 | 46.72 | |||||||||||
1974 | 22.89 | 34.11 | 39.47 | a | 44.94 | d | 56.47 | 64.84 | a | 71.91 | b | 65.87 | 57.80 | 50.30 | a | 36.83 | 28.47 | b | 47.82 | |||||||
1975 | 28.04 | c | 27.41 | 33.12 | a | 40.83 | 51.19 | 61.40 | 71.03 | b | 69.21 | b | 58.15 | 49.44 | 34.93 | 32.35 | a | 46.43 | ||||||||
1976 | 26.79 | 35.80 | a | 34.65 | 45.52 | 54.02 | 62.90 | a | 71.68 | 68.05 | 60.67 | a | 44.27 | e | 34.87 | 32.16 | 47.61 | |||||||||
1977 | 22.63 | 34.79 | 33.96 | d | 47.32 | 57.02 | 67.84 | a | 71.73 | 67.11 | 63.53 | a | 51.25 | a | 35.90 | 30.30 | a | 48.61 | ||||||||
1978 | 21.89 | 24.39 | 39.44 | 46.87 | 51.53 | a | 63.52 | 71.73 | 67.60 | 61.17 | 50.24 | b | 33.88 | 20.90 | a | 46.10 | ||||||||||
1979 | 15.26 | 30.48 | a | 37.02 | b | 46.28 | 50.71 | b | 62.42 | d | 70.90 | 66.50 | b | 63.20 | 51.32 | a | 29.15 | 32.43 | b | 46.31 | ||||||
1980 | 22.09 | c | 27.60 | 32.70 | c | 44.40 | a | 52.31 | 66.04 | b | 72.90 | 68.62 | a | 61.90 | 45.11 | d | 35.95 | 36.38 | a | 47.17 | ||||||
1981 | 31.06 | 29.17 | b | 37.10 | a | 49.91 | a | 50.73 | 64.70 | 69.93 | a | 66.18 | 62.00 | 46.80 | d | 40.18 | 29.45 | 48.10 | ||||||||
1982 | 23.89 | c | 27.45 | 34.87 | a | 41.70 | 51.23 | a | 58.11 | c | 68.52 | a | 69.65 | 58.45 | b | 46.63 | 32.50 | a | 29.37 | e | 45.20 | |||||
1983 | 32.73 | c | 33.67 | d | 34.77 | 36.38 | d | 47.98 | g | 60.57 | b | 69.84 | b | 72.84 | b | 58.62 | f | 49.23 | i | 33.89 | g | 12.00 | k | 48.69 | e | |
1984 | 20.81 | g | 29.08 | d | 33.39 | h | 37.90 | e | 56.75 | g | 62.96 | d | 71.48 | d | 70.40 | f | 58.80 | g | 42.70 | f | 36.56 | c | 27.32 | a | 44.22 | f |
1985 | 21.64 | c | 23.98 | a | 37.55 | b | 48.34 | a | 57.81 | 65.27 | d | 72.63 | d | 69.11 | d | 54.62 | a | 46.68 | 25.76 | g | 20.54 | d | 47.11 | a | ||
1986 | 30.71 | e | 32.12 | h | ----- | z | 49.46 | q | 54.55 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 42.63 | j |
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 48.67 | b | 36.57 | c | 26.16 | b | 37.13 | i |
1988 | 20.90 | 29.09 | a | 34.58 | e | 46.23 | 55.85 | a | 69.96 | b | 71.94 | 71.60 | b | 59.83 | a | 51.45 | 36.20 | 27.93 | b | 47.96 | ||||||
1989 | 31.93 | c | 20.96 | a | 39.70 | a | 47.20 | 56.57 | a | 62.48 | a | 73.27 | 68.55 | 59.33 | 48.95 | 39.12 | a | 24.53 | a | 47.72 | ||||||
1990 | 32.50 | a | 29.14 | 34.23 | 45.88 | a | 52.48 | 67.48 | 67.44 | 67.79 | 63.57 | 49.10 | 40.18 | 22.72 | b | 47.71 | ||||||||||
1991 | 25.26 | 37.64 | 37.81 | b | 44.50 | 56.44 | 65.37 | 69.97 | 69.85 | a | 60.55 | a | 49.17 | b | 33.32 | 31.92 | a | 48.48 | ||||||||
1992 | 30.77 | a | 37.13 | c | 40.68 | 50.22 | 57.39 | 62.52 | a | 66.63 | 65.33 | b | 61.80 | b | 50.40 | 30.76 | a | 23.31 | b | 48.08 | ||||||
1993 | 24.44 | 26.17 | a | 38.60 | a | 43.91 | c | 55.12 | b | 61.64 | a | 68.38 | b | 66.84 | 56.94 | f | 46.37 | a | 28.83 | a | 30.39 | c | 44.61 | a | ||
1994 | 30.00 | a | 26.04 | 40.30 | a | 45.91 | a | 59.08 | 68.50 | a | 69.56 | 70.90 | 64.05 | b | 48.28 | a | 34.80 | 32.02 | a | 49.12 | ||||||
1995 | 29.20 | a | 32.85 | a | 37.12 | a | 41.58 | 48.39 | 60.03 | 68.61 | 72.61 | 59.37 | 47.32 | 39.48 | a | 31.97 | b | 47.38 | ||||||||
1996 | 22.88 | b | 33.41 | a | 33.05 | a | 45.90 | a | 54.60 | 65.23 | 69.63 | 68.76 | 58.73 | 48.92 | 35.61 | b | 29.62 | a | 47.19 | |||||||
1997 | 25.13 | 29.80 | c | 39.12 | c | 39.17 | a | 55.00 | a | 64.74 | a | 69.83 | a | 68.00 | 61.86 | a | 49.61 | 33.82 | b | 29.18 | a | 47.11 | ||||
1998 | 31.15 | a | 32.82 | 35.07 | b | 43.96 | b | 56.31 | b | 59.95 | 71.45 | a | 69.21 | 65.68 | 48.40 | b | 40.07 | 26.69 | 48.40 | |||||||
1999 | 31.90 | 36.25 | b | 40.53 | a | 41.67 | a | 53.60 | 63.58 | 72.02 | 68.90 | 57.10 | 50.53 | b | 44.50 | a | 33.17 | a | 49.48 | |||||||
2000 | 30.87 | a | 36.55 | a | 38.92 | a | 48.33 | a | 58.63 | 64.38 | 73.19 | 72.30 | a | 61.13 | 49.26 | 27.43 | a | 26.32 | 48.94 | |||||||
2001 | 27.93 | a | 27.08 | b | 37.06 | 47.57 | a | 53.97 | 66.12 | 73.38 | a | 70.23 | 62.87 | 48.32 | 40.05 | a | 30.03 | 48.72 | ||||||||
2002 | 28.50 | 30.70 | 32.12 | b | 50.04 | c | 53.78 | a | 69.66 | a | 74.75 | a | 69.21 | c | 60.47 | 42.07 | a | 35.28 | 32.61 | 48.27 | ||||||
2003 | 36.05 | 27.50 | 39.13 | a | 48.19 | a | 55.21 | 60.32 | 75.15 | 71.31 | 58.72 | c | 52.81 | 34.37 | 30.90 | a | 49.14 | |||||||||
2004 | 31.08 | 29.02 | 43.55 | 46.95 | 57.06 | 62.29 | b | 69.08 | 66.16 | b | 60.91 | c | 49.85 | a | 36.45 | b | 32.84 | c | 48.77 | |||||||
2005 | 31.32 | a | 34.39 | 38.40 | a | 45.31 | d | 54.07 | c | 64.60 | a | ----- | z | 66.07 | a | 61.10 | d | 47.64 | b | 39.92 | e | 26.00 | b | 46.26 | a | |
2006 | 33.86 | c | 24.12 | d | 32.73 | e | 47.69 | c | 55.33 | d | 67.57 | i | 72.23 | g | 63.94 | o | 53.02 | e | ----- | z | ----- | z | ----- | z | 41.13 | f |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 27.04 | 30.23 | 35.34 | 44.47 | 54.07 | 63.65 | 70.54 | 68.77 | 59.90 | 48.72 | 35.82 | 28.87 | 47.39 | |||||||||||||
S.D. | 5.12 | 4.35 | 4.00 | 3.41 | 2.63 | 2.87 | 2.25 | 1.96 | 2.91 | 2.81 | 3.66 | 3.65 | 1.12 | |||||||||||||
SKEW | -0.71 | -0.02 | -0.22 | -0.34 | -0.23 | -0.01 | -0.07 | 0.14 | -0.58 | -0.83 | 0.02 | -0.36 | -0.18 | |||||||||||||
MAX | 36.27 | 39.75 | 43.55 | 50.22 | 59.08 | 69.96 | 75.15 | 72.84 | 65.68 | 55.03 | 44.50 | 36.38 | 49.48 | |||||||||||||
MIN | 11.93 | 20.96 | 25.39 | 36.38 | 48.39 | 56.59 | 65.69 | 65.11 | 52.45 | 39.19 | 27.43 | 20.54 | 44.46 | |||||||||||||
YRS | 56 | 56 | 55 | 56 | 55 | 55 | 54 | 54 | 53 | 54 | 53 | 55 | 47 |