YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1951 | ----- | z | ----- | z | ----- | z | 54.67 | x | 62.42 | k | 68.46 | f | 75.63 | p | 73.05 | k | 66.07 | a | 51.29 | 37.90 | 26.10 | 45.34 | h | |||
1952 | 22.60 | 35.86 | 43.87 | 53.83 | 63.90 | ----- | z | ----- | z | ----- | z | 68.47 | 57.44 | 33.22 | 35.17 | a | 46.04 | c | ||||||||
1953 | 42.10 | 41.39 | 46.73 | 50.52 | 58.45 | 63.85 | 75.18 | 73.07 | a | 66.47 | 54.95 | 42.70 | 38.58 | 54.50 | ||||||||||||
1954 | 27.67 | a | 39.11 | 40.48 | a | 50.35 | 62.08 | a | 63.47 | 72.63 | a | 70.84 | 62.83 | 49.52 | 44.93 | a | 31.79 | 51.31 | ||||||||
1955 | 29.08 | 33.68 | 38.63 | 47.03 | 57.61 | 69.27 | 73.42 | a | 73.23 | 64.63 | 52.92 | a | 31.88 | 27.00 | a | 49.86 | ||||||||||
1956 | 31.56 | 26.10 | 43.85 | 54.82 | 64.15 | a | 64.92 | 78.34 | 74.92 | 65.65 | 51.74 | 36.62 | 34.85 | 52.29 | ||||||||||||
1957 | 17.62 | c | 32.81 | b | 44.08 | 54.43 | 65.90 | a | 69.55 | 72.90 | 70.44 | 66.70 | 50.23 | a | 38.38 | 37.56 | 51.72 | |||||||||
1958 | 37.03 | 44.80 | 43.17 | a | 51.22 | 68.92 | 73.87 | 80.44 | 80.32 | a | 63.57 | 52.84 | 40.88 | a | 34.77 | 55.98 | ||||||||||
1959 | 32.16 | 35.46 | 46.65 | 53.78 | 57.53 | a | 68.70 | 77.66 | 72.47 | 62.43 | 52.60 | a | 36.18 | 32.62 | b | 52.35 | ||||||||||
1960 | 23.56 | 37.67 | 44.26 | 51.90 | 59.43 | a | 69.87 | 80.45 | 71.92 | a | 66.48 | 53.70 | a | 40.47 | 29.92 | 52.47 | ||||||||||
1961 | 33.75 | a | 43.61 | 45.44 | 52.53 | a | 59.65 | 73.32 | 77.98 | 79.95 | a | 62.27 | 49.42 | 33.88 | 32.19 | 53.67 | ||||||||||
1962 | 30.08 | 36.73 | 41.79 | 55.27 | 56.69 | 68.62 | 73.89 | 70.21 | 64.10 | ----- | z | 43.03 | a | 36.52 | 52.45 | a | ||||||||||
1963 | 26.45 | a | 38.57 | 47.24 | 49.77 | 60.62 | b | 69.58 | 71.97 | 74.69 | 69.72 | 55.58 | 42.47 | a | 30.84 | 53.12 | ||||||||||
1964 | 35.05 | c | 38.04 | a | 44.05 | 50.67 | a | 60.10 | 68.53 | 75.00 | 70.55 | 61.85 | 52.30 | a | 38.34 | a | 27.10 | b | 51.80 | |||||||
1965 | 33.03 | 40.62 | 43.06 | 54.95 | 60.65 | a | 69.33 | 75.92 | 74.29 | 62.32 | 55.45 | a | 42.59 | a | 32.71 | 53.74 | ||||||||||
1966 | 32.98 | 39.50 | 44.52 | 53.77 | 62.48 | 66.72 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 49.99 | f | ||||||
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.55 | 49.71 | 39.03 | a | 29.63 | 44.73 | h | |||
1971 | 34.37 | 39.23 | 40.47 | 50.77 | 62.81 | 64.08 | 75.31 | 78.97 | 60.07 | 50.65 | 39.72 | 28.84 | 52.11 | |||||||||||||
1972 | 29.47 | 34.18 | a | 46.63 | 49.50 | 62.48 | b | 69.00 | e | 73.45 | 75.05 | 60.30 | 50.97 | 39.98 | 27.76 | 51.56 | ||||||||||
1973 | 28.82 | 37.04 | 46.98 | 53.70 | 62.85 | 68.42 | 75.55 | 73.69 | 64.98 | 52.23 | 37.32 | 37.02 | a | 53.22 | ||||||||||||
1974 | 29.15 | 40.09 | a | 44.55 | 53.27 | 57.61 | 71.00 | 73.00 | 73.44 | 65.38 | 51.65 | 41.92 | 36.31 | 53.11 | ||||||||||||
1975 | 31.08 | 32.48 | 41.45 | 47.88 | 60.11 | c | 66.88 | f | 76.81 | g | 71.21 | 65.02 | 52.23 | a | 40.42 | 33.95 | 47.58 | b | ||||||||
1976 | 32.44 | 38.59 | 42.55 | 51.33 | 61.02 | a | 65.50 | 73.63 | 69.85 | 67.30 | 50.32 | 39.35 | 30.76 | 51.89 | ||||||||||||
1977 | 25.15 | 39.50 | 45.16 | 56.64 | b | 57.90 | 71.27 | 73.50 | 77.44 | 60.75 | 51.06 | 38.20 | 34.31 | 52.57 | ||||||||||||
1978 | 32.03 | 36.64 | 46.85 | 52.83 | 58.95 | 69.33 | 74.95 | a | 72.68 | 62.78 | 50.58 | 33.05 | 28.15 | a | 51.57 | |||||||||||
1979 | 15.05 | 32.11 | a | 45.61 | 50.68 | 63.09 | b | ----- | z | 75.26 | 73.31 | 66.53 | 55.34 | 34.12 | 36.27 | 49.76 | a | |||||||||
1980 | 23.31 | 33.55 | 44.90 | 55.33 | 59.94 | 64.72 | 72.87 | 70.06 | 64.20 | 51.61 | 40.67 | 35.23 | 51.37 | |||||||||||||
1981 | 38.10 | 38.57 | a | 47.73 | 52.67 | 60.02 | 65.19 | a | 72.42 | 76.32 | 64.15 | 50.67 | a | 41.90 | 31.61 | 53.28 | ||||||||||
1982 | 28.31 | 36.00 | a | 44.07 | c | 47.74 | a | 58.29 | 70.71 | a | 73.18 | a | 73.88 | b | 63.76 | c | 49.94 | 36.67 | a | 31.98 | 51.21 | |||||
1983 | 37.04 | c | 39.77 | 48.06 | e | 49.29 | f | 61.67 | a | 67.43 | 70.84 | b | 74.52 | c | 60.52 | a | 50.09 | c | 42.89 | c | 20.42 | 52.11 | a | |||
1984 | 32.65 | a | 38.48 | a | 46.57 | a | 50.48 | a | 55.75 | a | 64.88 | a | 74.55 | 73.11 | 59.74 | a | 48.22 | a | 38.80 | b | 22.89 | 50.51 | ||||
1985 | 26.05 | 28.11 | 42.55 | 54.40 | 62.48 | 68.86 | a | 79.21 | c | 69.63 | e | 58.05 | a | 49.11 | 27.55 | b | 18.95 | a | 48.75 | |||||||
1986 | 31.65 | a | 36.25 | 48.00 | a | 51.27 | 61.15 | 72.22 | a | 70.28 | a | 77.26 | b | 60.88 | 52.88 | c | 42.65 | c | 31.06 | 52.96 | ||||||
1987 | 28.58 | 38.79 | 45.74 | b | 55.53 | 63.72 | a | 68.65 | c | 73.15 | 71.29 | b | 64.86 | b | 51.18 | 41.60 | a | 28.97 | b | 52.67 | ||||||
1988 | 30.65 | 37.97 | 44.16 | 53.37 | 59.66 | 66.57 | 74.39 | 71.76 | 62.66 | b | 56.35 | a | 42.79 | a | 29.92 | 52.52 | ||||||||||
1989 | 34.95 | 25.93 | 42.60 | 54.58 | 59.40 | 70.12 | 72.94 | 72.02 | 63.28 | 51.80 | a | 43.50 | 32.68 | 51.98 | ||||||||||||
1990 | 38.88 | a | 35.09 | 45.33 | a | 56.03 | 59.24 | 67.38 | 76.89 | 73.90 | a | 68.77 | 50.76 | 44.62 | a | 23.66 | 53.38 | |||||||||
1991 | 26.18 | 41.74 | a | 42.34 | 52.57 | 58.47 | 63.95 | 74.77 | a | 75.08 | a | 65.45 | 50.85 | 39.95 | 37.40 | a | 52.40 | |||||||||
1992 | 36.45 | 40.59 | b | ----- | z | ----- | z | 62.90 | 73.45 | ----- | z | 74.05 | a | 61.73 | 52.35 | 40.82 | b | 27.95 | b | 52.26 | c | |||||
1993 | 23.05 | 30.17 | a | 41.33 | a | 51.75 | 65.45 | c | 67.89 | b | 69.02 | 70.10 | 63.86 | a | 53.60 | 34.28 | 34.56 | 50.42 | ||||||||
1994 | 37.95 | 35.68 | 46.52 | 56.91 | a | 62.79 | 67.33 | a | 77.66 | 74.28 | a | 66.98 | 52.39 | 38.80 | 33.65 | 54.24 | ||||||||||
1995 | 32.82 | a | 42.66 | 45.00 | 51.17 | 62.13 | 67.12 | a | 74.76 | b | 68.77 | 66.48 | 50.78 | a | 42.28 | a | 32.50 | a | 53.04 | |||||||
1996 | 25.72 | a | 30.59 | 43.19 | 53.77 | 57.44 | 67.66 | b | 75.83 | a | 71.88 | a | 62.38 | a | 50.89 | 36.18 | 25.72 | a | 50.10 | |||||||
1997 | 30.67 | a | 37.45 | 46.19 | 50.30 | 62.32 | 67.30 | 73.35 | 74.73 | a | 65.20 | 52.27 | 40.45 | 33.74 | 52.83 | |||||||||||
1998 | 33.11 | c | 41.31 | a | 47.03 | 52.05 | 61.73 | 69.52 | 80.73 | 76.39 | 69.80 | 51.40 | 44.70 | 31.82 | 54.97 | |||||||||||
1999 | 38.05 | a | 41.95 | 46.11 | 51.42 | 57.31 | b | 67.88 | 72.67 | a | 75.05 | a | 62.28 | 51.06 | 45.37 | 38.18 | 53.94 | |||||||||
2000 | 32.35 | 38.22 | 44.82 | 55.36 | a | 61.45 | a | 68.22 | a | 74.21 | 73.48 | 63.14 | a | 51.35 | 33.42 | 28.97 | 52.08 | |||||||||
2001 | 32.97 | a | 34.52 | a | 45.90 | a | 51.40 | 62.17 | a | 66.25 | 74.58 | 74.95 | a | 65.70 | 51.45 | 42.97 | 35.11 | 53.16 | ||||||||
2002 | 37.48 | 38.18 | 41.56 | 52.18 | 58.40 | 69.77 | 76.32 | a | ----- | z | 64.23 | 48.85 | 39.55 | 37.48 | a | 51.27 | a | |||||||||
2003 | 37.94 | 39.79 | 48.21 | 52.40 | 59.94 | 71.86 | a | 77.95 | 74.52 | b | 67.40 | 56.85 | a | 35.95 | b | 33.27 | 54.67 | |||||||||
2004 | 30.22 | a | 36.59 | b | 49.74 | 53.98 | 61.27 | 68.68 | b | 78.05 | b | 76.55 | 65.05 | 55.91 | c | 40.02 | a | 36.72 | a | 54.40 | ||||||
2005 | 29.94 | 37.02 | 48.40 | 53.34 | b | 63.14 | b | 68.38 | b | 75.44 | 74.71 | c | 63.30 | 53.69 | 38.55 | 28.53 | 52.87 | |||||||||
2006 | 38.20 | a | 36.30 | 44.07 | a | 52.36 | a | 60.18 | 68.92 | 78.13 | 73.16 | 64.00 | a | 51.17 | b | 39.89 | b | 29.88 | b | 53.02 | ||||||
2007 | 29.13 | d | 37.98 | 47.83 | b | 51.87 | 62.52 | 67.59 | a | 79.69 | 72.58 | 65.18 | 50.58 | a | 38.57 | 35.06 | o | 54.87 | a | |||||||
2008 | 23.02 | h | 38.10 | 42.31 | 47.23 | b | 64.21 | b | 66.56 | l | 76.21 | q | 72.40 | 62.52 | i | 51.04 | e | 44.16 | e | 31.36 | t | 51.35 | e | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 31.05 | 37.00 | 44.78 | 52.41 | 60.95 | 68.30 | 75.09 | 73.58 | 64.16 | 51.96 | 39.37 | 31.61 | 52.55 | |||||||||||||
S.D. | 5.45 | 4.00 | 2.38 | 2.34 | 2.58 | 2.50 | 2.70 | 2.59 | 2.59 | 2.09 | 3.75 | 4.50 | 1.43 | |||||||||||||
SKEW | -0.58 | -0.84 | -0.27 | -0.31 | 0.41 | 0.09 | 0.29 | 0.53 | 0.03 | 0.86 | -0.77 | -0.71 | -0.21 | |||||||||||||
MAX | 42.10 | 44.80 | 49.74 | 56.91 | 68.92 | 73.87 | 80.73 | 80.32 | 69.80 | 57.44 | 45.37 | 38.58 | 55.98 | |||||||||||||
MIN | 15.05 | 25.93 | 38.63 | 47.03 | 55.75 | 63.47 | 69.02 | 68.77 | 58.05 | 48.22 | 27.55 | 18.95 | 48.75 | |||||||||||||
YRS | 52 | 53 | 52 | 51 | 53 | 49 | 48 | 50 | 53 | 53 | 54 | 52 | 43 |