YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 63.90 | b | 59.70 | b | 43.59 | c | 23.05 | h | 20.13 | a | 46.83 | h |
1949 | 7.11 | 18.12 | 31.82 | 42.80 | 49.16 | 56.67 | 64.90 | 62.06 | 54.40 | 41.08 | 38.65 | 22.58 | a | 40.78 | ||||||||||||
1950 | 21.32 | 27.16 | 29.15 | 39.92 | 44.73 | a | 56.83 | 61.55 | 61.40 | 53.30 | c | 49.79 | b | 33.58 | 29.61 | 42.36 | ||||||||||
1951 | 19.05 | 26.50 | 26.77 | 38.92 | ----- | z | 53.57 | a | 65.82 | 62.87 | 55.02 | f | 42.18 | 27.93 | 24.33 | e | 38.79 | b | ||||||||
1952 | 21.03 | 22.03 | 24.11 | 41.19 | a | 50.10 | 60.95 | 64.56 | 63.24 | 56.63 | 47.09 | d | 25.61 | c | 25.26 | f | 43.32 | a | ||||||||
1953 | 30.41 | c | 24.39 | e | 34.53 | a | 36.63 | d | 44.40 | 58.37 | k | 65.65 | d | 63.69 | b | 57.10 | e | 46.46 | r | 35.73 | b | 22.83 | g | 43.62 | c | |
1954 | 26.88 | c | 33.00 | i | 27.75 | c | 41.69 | c | 51.83 | a | 59.02 | c | 69.92 | 63.35 | h | 55.40 | f | 43.83 | g | 36.34 | b | 24.90 | f | 44.77 | e | |
1955 | 20.45 | a | 19.48 | b | 26.32 | 38.03 | 50.27 | a | 57.88 | j | 64.97 | l | 66.82 | 57.21 | b | 47.88 | k | 28.19 | a | 24.77 | e | 36.84 | c | |||
1956 | 27.69 | g | 16.28 | 27.95 | 40.12 | 52.76 | 62.63 | 62.88 | o | 60.54 | d | 56.07 | 44.94 | d | 24.74 | c | 22.38 | c | 40.84 | b | ||||||
1957 | 16.31 | b | 30.11 | a | 31.13 | 37.52 | 47.77 | c | 57.26 | c | 65.76 | 65.38 | c | 52.22 | 44.93 | d | 25.62 | f | 26.69 | d | 43.19 | a | ||||
1958 | 22.00 | 31.54 | a | 25.95 | a | 37.23 | b | 54.91 | b | 60.72 | 63.34 | c | 65.63 | 57.18 | b | 45.59 | b | 34.83 | 29.69 | 44.05 | ||||||
1959 | 23.85 | 24.91 | 29.94 | 41.12 | 49.66 | 63.07 | 66.11 | 64.47 | a | 53.25 | 42.65 | 31.28 | 27.08 | 43.12 | ||||||||||||
1960 | 22.11 | 18.57 | 32.15 | 42.22 | 50.79 | 60.52 | a | 67.13 | 64.27 | a | 57.73 | 45.15 | 31.13 | 23.58 | a | 42.95 | ||||||||||
1961 | 22.81 | 27.98 | 31.95 | 38.64 | a | 52.13 | 62.25 | 65.84 | 65.56 | 49.97 | 42.77 | 28.13 | 21.61 | 42.47 | ||||||||||||
1962 | 15.83 | a | 25.86 | 26.29 | 44.05 | 52.05 | 59.37 | 64.52 | 62.32 | 54.90 | 46.42 | 36.77 | 26.27 | 42.89 | ||||||||||||
1963 | 15.56 | 30.20 | 30.52 | 40.22 | 53.31 | 60.57 | 67.74 | 65.13 | 59.12 | 49.76 | 35.92 | 25.15 | 44.43 | |||||||||||||
1964 | 17.45 | 16.98 | 22.94 | 38.53 | 50.81 | 57.25 | 68.68 | 62.37 | 53.37 | 44.50 | 31.47 | 23.55 | 40.66 | |||||||||||||
1965 | 26.68 | 24.39 | 21.92 | 42.02 | 48.61 | 57.97 | 65.31 | 61.19 | 47.70 | 47.45 | 37.80 | 26.35 | 42.28 | |||||||||||||
1966 | 22.66 | 20.07 | a | 34.47 | b | 38.47 | a | 51.53 | a | 56.48 | j | 69.24 | l | 62.23 | 56.13 | 41.47 | 34.18 | b | 22.74 | 38.39 | b | |||||
1967 | 24.37 | 24.77 | 33.88 | a | 39.64 | a | 46.94 | 55.12 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.45 | f | ||||
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.23 | 61.16 | 52.95 | 45.35 | 28.20 | 21.68 | 45.93 | f | ||||||
1969 | 27.58 | 25.75 | 23.42 | 43.98 | 54.32 | 54.62 | 66.68 | 66.71 | 58.42 | 35.97 | 31.32 | 24.00 | 42.73 | |||||||||||||
1970 | 22.68 | 29.36 | 27.65 | 35.23 | 51.35 | 59.40 | a | 66.37 | 66.21 | 52.27 | 38.00 | 33.05 | 23.52 | 42.09 | ||||||||||||
1971 | 25.40 | a | 23.70 | 29.81 | 40.80 | 48.74 | 60.88 | 65.63 | 66.48 | 52.38 | a | 42.44 | 30.83 | 21.27 | 42.36 | |||||||||||
1972 | 22.58 | 27.48 | 37.77 | 42.77 | 50.73 | 61.95 | 65.26 | 63.81 | 55.23 | 44.53 | 27.12 | 19.58 | 43.23 | |||||||||||||
1973 | 16.68 | 19.71 | 27.65 | 34.50 | 48.68 | 59.47 | 64.79 | 65.66 | 53.90 | 47.06 | 31.78 | 25.11 | 41.25 | |||||||||||||
1974 | 19.68 | 23.88 | 36.42 | 40.33 | 52.29 | 61.80 | 66.95 | 61.23 | 52.65 | 46.95 | 33.42 | 20.27 | 42.99 | |||||||||||||
1975 | 22.13 | 23.29 | 30.94 | 36.45 | 47.79 | 56.27 | 67.08 | 62.52 | 52.95 | 44.76 | 30.87 | 25.47 | 41.71 | |||||||||||||
1976 | 21.95 | 28.43 | 30.24 | 42.30 | 51.63 | 58.23 | 68.72 | a | 63.35 | 56.23 | 42.34 | 30.40 | 24.89 | 43.23 | ||||||||||||
1977 | 20.83 | a | 27.79 | 29.02 | 44.64 | b | 51.31 | 64.88 | 66.84 | 63.74 | 57.02 | 46.02 | 32.52 | a | 28.52 | a | 44.43 | |||||||||
1978 | 23.17 | a | 25.44 | c | 36.89 | 43.62 | 49.16 | 60.95 | 67.35 | 61.82 | 55.27 | 45.61 | 31.41 | a | 15.10 | a | 42.98 | |||||||||
1979 | 9.37 | 25.98 | 33.13 | 42.02 | 49.18 | 60.23 | 67.10 | 63.21 | 58.32 | 46.29 | 23.93 | 27.90 | 42.22 | |||||||||||||
1980 | 19.78 | a | 27.17 | 29.61 | 40.40 | 50.16 | 61.43 | a | 67.65 | a | 64.58 | 56.40 | 43.35 | 33.02 | a | 33.03 | 43.88 | |||||||||
1981 | 28.24 | 28.34 | 35.11 | 46.70 | 49.00 | 62.28 | 66.58 | 64.45 | 59.98 | 42.98 | 35.27 | 28.06 | 45.58 | |||||||||||||
1982 | 20.62 | a | 23.96 | a | 33.47 | b | 38.40 | a | 48.87 | a | 56.95 | a | 65.48 | a | 67.25 | a | 55.25 | 41.40 | 27.25 | 22.80 | a | 41.81 | ||||
1983 | 26.65 | 28.11 | 32.42 | 34.57 | 46.02 | 57.52 | 66.65 | 67.62 | a | 57.23 | 46.34 | 30.70 | c | 16.88 | b | 42.56 | ||||||||||
1984 | 17.67 | a | 22.19 | 28.98 | 34.68 | 52.03 | 57.47 | a | 66.60 | 65.89 | 54.63 | 38.69 | 33.09 | a | 23.44 | 41.28 | ||||||||||
1985 | 15.57 | a | 19.29 | 31.74 | 43.22 | 51.48 | 60.07 | 67.05 | 63.80 | a | 51.87 | 43.48 | 28.09 | a | 20.29 | 41.33 | ||||||||||
1986 | 27.79 | 29.25 | 39.84 | 41.58 | 49.39 | 63.75 | 64.10 | 64.48 | 53.25 | 43.34 | b | 32.23 | 24.45 | 44.45 | ||||||||||||
1987 | 20.92 | 27.67 | a | 29.29 | 45.28 | a | 52.76 | 59.31 | a | 65.10 | 61.68 | a | 54.53 | 45.73 | 30.27 | 21.11 | 42.80 | |||||||||
1988 | 17.03 | 24.10 | 28.52 | 44.57 | 51.32 | 65.35 | 67.73 | 64.35 | 53.92 | 49.23 | 31.50 | a | 21.95 | 43.30 | ||||||||||||
1989 | 23.94 | 15.43 | a | 36.74 | 44.55 | a | 52.03 | 59.03 | 67.18 | 63.37 | 55.62 | 44.69 | 34.00 | 21.23 | e | 43.15 | ||||||||||
1990 | 26.00 | k | 22.25 | 35.84 | 43.68 | 48.71 | 61.58 | 64.87 | 63.92 | 59.83 | 45.52 | a | 34.77 | 16.63 | 45.24 | a | ||||||||||
1991 | 19.79 | 30.82 | 34.06 | 39.62 | 52.15 | a | 61.27 | 64.71 | 64.84 | 55.12 | 44.77 | 27.65 | 22.74 | 43.13 | ||||||||||||
1992 | 20.02 | 28.66 | 37.15 | 47.15 | 54.07 | a | 58.63 | 62.16 | 63.48 | 56.37 | 47.97 | 26.02 | 20.05 | a | 43.48 | |||||||||||
1993 | 22.69 | 20.12 | 33.24 | 39.28 | 51.34 | 57.32 | 61.48 | 61.48 | 53.25 | 42.42 | 25.38 | 23.02 | 40.92 | |||||||||||||
1994 | 25.97 | 22.80 | 36.84 | 42.97 | 54.52 | 62.45 | 65.35 | 65.58 | 56.33 | 43.97 | 29.13 | 27.39 | 44.44 | |||||||||||||
1995 | 23.65 | 31.34 | 35.07 | a | 39.47 | 45.55 | 57.05 | 63.76 | 67.13 | 55.57 | 43.00 | 36.33 | 28.31 | 43.85 | ||||||||||||
1996 | 22.21 | 27.98 | 32.95 | 41.75 | 51.18 | 61.27 | 66.84 | 64.23 | 53.65 | 42.47 | 34.58 | 26.77 | 43.82 | |||||||||||||
1997 | 21.39 | 22.09 | 35.87 | 36.80 | 51.11 | 61.30 | 65.77 | 64.19 | 57.98 | 44.56 | 29.57 | 20.63 | 42.61 | |||||||||||||
1998 | 28.53 | 28.05 | 30.26 | 40.40 | 51.81 | 55.25 | 68.06 | 65.11 | 59.98 | 44.56 | 36.40 | 22.76 | 44.27 | |||||||||||||
1999 | 27.98 | b | 30.06 | a | 37.65 | 39.58 | 49.21 | b | 59.77 | 68.10 | b | 64.85 | a | 53.07 | a | 45.32 | 39.30 | 24.45 | a | 44.94 | ||||||
2000 | 27.19 | b | 31.64 | 34.90 | a | 45.48 | b | 55.38 | b | 60.64 | a | 68.06 | e | 68.57 | a | 54.95 | 43.85 | a | 19.04 | c | 20.95 | 44.22 | ||||
2001 | 15.96 | f | 22.95 | g | 33.50 | c | 44.30 | b | 52.28 | a | 62.35 | f | 69.91 | c | 66.76 | j | 57.06 | c | 48.59 | t | 35.96 | e | 22.75 | a | 45.11 | e |
2002 | 21.19 | d | 23.08 | c | 27.21 | 45.25 | 51.50 | a | 63.89 | b | 69.15 | a | 64.18 | f | 58.73 | q | 38.59 | d | 30.45 | b | 26.70 | a | 39.70 | b | ||
2003 | 30.97 | 24.07 | 35.09 | b | 44.84 | e | 51.12 | b | 58.38 | 69.97 | a | 67.48 | a | 54.32 | 48.28 | a | 26.67 | c | 26.95 | c | 44.84 | |||||
2004 | 25.02 | 24.00 | c | 38.59 | b | 43.75 | 52.42 | a | 59.02 | a | 65.17 | a | 61.16 | 55.09 | c | 46.27 | c | 31.30 | 26.10 | a | 43.99 | |||||
2005 | 27.96 | d | 25.79 | 34.25 | a | 42.29 | b | 51.10 | b | 59.37 | 68.55 | 63.43 | a | 56.30 | g | 46.48 | 33.85 | 23.20 | c | 43.30 | a | |||||
2006 | 27.89 | 22.57 | 31.02 | a | 46.25 | b | 53.68 | a | 63.78 | a | 69.44 | 64.92 | a | 52.40 | 41.68 | a | 34.27 | b | 20.98 | a | 44.07 | |||||
2007 | 12.45 | a | 28.50 | 38.15 | a | 43.52 | 53.10 | a | 62.07 | a | 69.98 | a | 67.35 | 57.47 | 47.47 | m | 36.00 | e | 17.88 | n | 46.86 | b | ||||
2008 | 20.92 | l | 21.97 | l | 30.07 | x | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 22.02 | 24.99 | 31.72 | 41.14 | 50.71 | 59.79 | 66.39 | 64.18 | 55.25 | 44.33 | 31.57 | 23.77 | 43.04 | |||||||||||||
S.D. | 4.92 | 4.08 | 4.26 | 3.19 | 2.41 | 2.65 | 1.99 | 1.95 | 2.54 | 2.81 | 4.06 | 3.42 | 1.19 | |||||||||||||
SKEW | -0.67 | -0.42 | -0.26 | -0.26 | -0.58 | -0.15 | -0.27 | 0.14 | -0.24 | -0.57 | -0.49 | 0.02 | -0.14 | |||||||||||||
MAX | 30.97 | 31.64 | 39.84 | 47.15 | 55.38 | 65.35 | 69.98 | 68.57 | 59.98 | 49.79 | 39.30 | 33.03 | 45.58 | |||||||||||||
MIN | 7.11 | 15.43 | 21.92 | 34.50 | 44.40 | 53.57 | 61.48 | 60.54 | 47.70 | 35.97 | 19.04 | 15.10 | 40.66 | |||||||||||||
YRS | 55 | 56 | 58 | 58 | 57 | 54 | 55 | 56 | 55 | 54 | 57 | 55 | 44 |