YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 44.83 | p | 37.87 | 28.77 | 33.32 | j | ||
1952 | 34.73 | 34.83 | 34.19 | 47.87 | 56.18 | 70.73 | 71.53 | 69.87 | 63.73 | 52.90 | 32.90 | 31.95 | 50.12 | |||||||||||||
1953 | 38.85 | 33.05 | 43.23 | 43.02 | 53.16 | 69.03 | 73.08 | 70.23 | 65.78 | 53.52 | 43.18 | 30.87 | 51.42 | |||||||||||||
1954 | 36.34 | b | 44.29 | 35.85 | 53.25 | 56.65 | 68.47 | 75.23 | 71.19 | 65.17 | 52.32 | 43.58 | 34.48 | 53.07 | ||||||||||||
1955 | 27.08 | 28.43 | a | 37.71 | 49.42 | 57.74 | 62.82 | 72.79 | 71.39 | 63.03 | 53.60 | 36.50 | 35.97 | 49.71 | ||||||||||||
1956 | 34.32 | 27.24 | 40.23 | 46.03 | 59.94 | 70.63 | 70.74 | 67.87 | 63.93 | 55.19 | 36.30 | 34.68 | 50.59 | |||||||||||||
1957 | 26.53 | 41.09 | 38.61 | 41.62 | 52.65 | 64.20 | 71.19 | 70.03 | 60.13 | 51.21 | 36.88 | 39.63 | 49.48 | |||||||||||||
1958 | 31.95 | 37.70 | 31.24 | 42.82 | 58.39 | 65.10 | 67.39 | 69.47 | 62.98 | 51.95 | 40.43 | 34.26 | 49.47 | |||||||||||||
1959 | 29.26 | 29.36 | 35.44 | 45.50 | 55.63 | 68.18 | 70.61 | 70.90 | 59.45 | a | 47.50 | 37.82 | 33.50 | 48.60 | ||||||||||||
1960 | 24.19 | 22.02 | 37.56 | 50.07 | 55.77 | 66.93 | b | 70.76 | 71.44 | 63.83 | 51.58 | 40.80 | 28.39 | 48.61 | ||||||||||||
1961 | 30.40 | 35.86 | 39.26 | 45.50 | 55.97 | 65.05 | 69.95 | 69.52 | 56.67 | 51.65 | 36.68 | 28.35 | 48.74 | |||||||||||||
1962 | 23.16 | 33.45 | 35.87 | 51.20 | 58.77 | 64.78 | 70.85 | 71.03 | 62.88 | 54.97 | 42.67 | 33.66 | 50.28 | |||||||||||||
1963 | 20.71 | 38.02 | 38.48 | 49.73 | 59.25 | e | 67.70 | b | 75.47 | 69.76 | 67.29 | k | 58.66 | 42.97 | 28.50 | d | 49.93 | a | ||||||||
1964 | 31.45 | a | 27.23 | a | 34.62 | e | 46.52 | 59.12 | a | 65.10 | 75.63 | a | 70.35 | 63.11 | b | 52.92 | 39.31 | a | 33.25 | c | 49.88 | |||||
1965 | 37.14 | b | 29.63 | a | 28.98 | c | 49.40 | a | 56.45 | a | 62.43 | b | 71.05 | a | 68.44 | 53.62 | f | 54.82 | a | 46.30 | b | 36.82 | c | 49.22 | a | |
1966 | 28.53 | a | 28.50 | 43.36 | b | 46.04 | d | 59.77 | a | 66.05 | b | 75.90 | 69.77 | a | 64.36 | b | 52.55 | k | 42.36 | b | 30.80 | c | 50.49 | a | ||
1967 | 34.05 | a | 34.96 | b | 44.76 | b | 49.33 | f | 55.00 | f | 61.78 | 69.69 | d | 66.67 | d | 63.58 | q | 52.77 | g | 39.43 | h | 28.50 | m | 51.98 | f | |
1968 | 28.88 | e | 34.02 | e | 40.86 | f | 43.59 | a | 53.24 | b | 66.78 | 71.40 | 67.31 | 60.03 | 51.97 | 35.87 | 30.02 | a | 49.37 | a | ||||||
1969 | 33.66 | 34.27 | 30.11 | 50.03 | 58.28 | a | 59.87 | 72.38 | a | 73.57 | a | 63.77 | 38.61 | 37.08 | 32.47 | a | 48.68 | |||||||||
1970 | 27.95 | 36.91 | 33.10 | 41.48 | 56.90 | 63.73 | 71.45 | 72.37 | 59.10 | a | 44.39 | 37.15 | 33.98 | 48.21 | ||||||||||||
1971 | 31.18 | 29.11 | 37.15 | 45.87 | 52.82 | a | 67.65 | 70.05 | a | 70.90 | 56.58 | 48.94 | 39.60 | 32.31 | 48.51 | |||||||||||
1972 | 31.52 | a | 36.34 | 44.34 | 47.15 | 54.82 | 66.68 | 69.65 | 68.87 | 60.55 | 51.08 | 29.78 | ----- | z | 50.98 | a | ||||||||||
1973 | 24.37 | 31.34 | 36.85 | 40.65 | 53.48 | a | 64.42 | 69.55 | a | 71.89 | 57.93 | 52.03 | 38.95 | 31.52 | c | 47.75 | ||||||||||
1974 | 22.19 | 31.55 | 41.60 | a | 44.92 | 59.45 | 66.05 | 72.50 | 67.89 | 57.90 | 51.73 | 38.00 | c | 30.45 | 48.69 | |||||||||||
1975 | 30.90 | 29.80 | 35.69 | 42.65 | 51.94 | 63.00 | 71.89 | 69.72 | a | 59.15 | 53.87 | 36.78 | 35.85 | a | 48.44 | |||||||||||
1976 | 30.58 | 38.80 | a | 36.48 | 47.00 | 55.06 | 65.32 | 73.02 | 69.10 | 61.00 | a | 46.60 | 37.45 | 33.53 | b | 49.50 | ||||||||||
1977 | 26.50 | 35.83 | a | 39.35 | 47.88 | a | 59.29 | 70.22 | 73.24 | 69.39 | 64.81 | a | 51.45 | a | ----- | z | ----- | z | 53.80 | b | ||||||
1978 | 24.68 | ----- | z | 40.61 | 48.55 | 52.60 | 65.67 | 73.73 | 69.18 | 64.97 | a | ----- | z | ----- | z | ----- | z | 55.00 | d | |||||||
1979 | ----- | z | ----- | z | 38.64 | b | 47.50 | 53.92 | 65.97 | a | 73.76 | 66.32 | 61.98 | 51.62 | a | 31.32 | 33.47 | a | 52.45 | b | ||||||
1980 | 25.58 | 34.38 | ----- | z | 43.88 | 52.82 | a | 70.12 | a | 74.98 | 71.60 | 64.05 | 49.79 | 38.76 | a | 40.65 | 51.51 | a | ||||||||
1981 | 35.40 | a | 34.60 | b | 37.98 | 52.73 | 54.31 | 68.05 | 73.08 | 69.53 | 66.05 | 50.40 | 43.33 | 33.58 | a | 51.59 | ||||||||||
1982 | 29.43 | c | 30.16 | c | 40.66 | b | 45.93 | a | 53.38 | c | 61.57 | 72.75 | a | 71.84 | c | 62.15 | 47.71 | b | ----- | z | ----- | z | 51.56 | b | ||
1983 | 33.38 | j | ----- | z | ----- | z | ----- | z | 49.21 | l | 59.48 | h | 72.21 | j | 71.80 | h | 64.02 | i | 52.30 | k | 39.83 | l | 17.19 | m | ----- | z |
1984 | 27.69 | j | 35.42 | j | 39.89 | d | 42.38 | a | 60.96 | d | 68.34 | a | 73.86 | c | 71.65 | 63.70 | c | 47.10 | 42.16 | a | 36.14 | b | 54.62 | b | ||
1985 | 29.62 | a | 30.33 | a | 41.90 | b | 49.76 | a | 57.92 | a | 65.65 | d | 71.81 | e | 71.07 | a | 57.90 | i | 49.89 | d | 32.28 | c | 28.61 | c | 48.07 | a |
1986 | 39.04 | e | 35.96 | d | 48.00 | h | 48.04 | c | 54.98 | e | 68.50 | b | 71.56 | e | 71.56 | e | 57.70 | h | 49.28 | d | 40.63 | c | 30.00 | c | 50.95 | b |
1987 | 30.48 | d | 35.32 | c | 34.72 | v | 46.55 | i | 55.09 | n | 66.97 | a | 71.48 | a | 69.06 | e | 60.57 | a | 50.75 | a | 38.83 | 29.08 | a | 50.28 | c | |
1988 | 24.45 | a | 32.66 | a | 36.56 | 46.18 | b | 56.18 | 68.12 | 71.67 | d | 71.35 | a | 61.34 | b | 53.37 | e | 40.07 | 30.55 | 49.37 | ||||||
1989 | 32.55 | a | 24.13 | a | 40.85 | 50.38 | e | 55.76 | b | 63.03 | a | 74.15 | a | 69.16 | 61.21 | b | 50.55 | a | 42.10 | 27.27 | 49.26 | |||||
1990 | 34.98 | 32.21 | 37.18 | a | 47.78 | 54.07 | a | 70.26 | a | 68.96 | c | 69.61 | 65.88 | 52.24 | d | 42.97 | 26.83 | b | 50.25 | |||||||
1991 | 27.82 | c | 37.93 | 41.06 | 46.50 | a | 58.44 | d | 67.64 | b | 72.00 | d | 69.95 | a | 63.31 | a | 50.16 | b | 35.68 | b | 32.45 | 50.25 | ||||
1992 | 30.53 | 38.02 | a | 41.83 | b | 52.05 | 59.71 | 63.97 | 69.98 | a | 67.45 | 63.67 | 53.78 | a | 33.95 | b | 28.60 | a | 50.29 | |||||||
1993 | 26.34 | c | 27.73 | b | 40.66 | 46.58 | 56.08 | a | 66.24 | c | 72.43 | d | 67.90 | 58.39 | b | 47.87 | 34.37 | 33.84 | 48.20 | |||||||
1994 | 32.72 | a | 33.13 | a | 41.73 | 47.28 | c | 60.82 | a | 72.04 | c | 72.53 | a | 73.24 | b | 66.22 | c | 51.09 | b | 38.54 | c | 35.11 | c | 52.04 | ||
1995 | 33.05 | 38.46 | 41.32 | c | 43.45 | 50.27 | 62.13 | c | 69.61 | 73.22 | a | 61.22 | a | 49.07 | a | 42.04 | b | 34.05 | a | 49.82 | ||||||
1996 | 29.05 | a | 34.04 | b | 35.27 | 47.52 | 57.60 | a | 66.36 | b | 71.54 | e | 70.71 | b | 60.52 | b | 51.27 | 37.86 | b | 34.16 | 49.66 | |||||
1997 | 28.87 | 32.12 | 41.81 | 41.34 | b | 56.26 | 67.85 | 74.43 | d | 68.30 | k | 63.90 | a | 52.16 | 39.77 | h | 27.69 | 48.64 | b | |||||||
1998 | 33.50 | a | 35.13 | a | 31.08 | r | 44.88 | a | 59.05 | b | 64.35 | c | 73.32 | 70.19 | 66.67 | 51.16 | 42.31 | a | 30.07 | a | 51.88 | a | ||||
1999 | 35.33 | b | 39.54 | b | 42.34 | c | 41.25 | b | 55.55 | b | 64.02 | a | 73.19 | 69.83 | b | 59.70 | 52.53 | 45.05 | k | 34.12 | e | 51.58 | a | |||
2000 | 36.33 | g | 39.98 | g | 41.52 | c | 50.22 | c | 59.80 | d | 66.88 | d | 74.40 | g | 73.43 | d | 62.68 | 51.21 | c | 30.91 | c | 29.82 | a | 51.83 | c | |
2001 | 31.90 | a | 31.33 | b | 39.96 | e | 49.43 | g | 55.44 | e | 67.96 | e | 75.31 | d | 70.90 | e | 64.86 | b | 52.05 | a | 43.57 | b | 33.66 | 51.54 | a | |
2002 | 31.11 | c | 33.12 | c | 35.27 | c | 52.88 | j | 57.19 | e | 71.66 | e | 75.97 | 71.77 | c | 62.00 | e | 46.18 | a | 37.06 | c | 34.80 | d | 50.56 | a | |
2003 | 37.23 | c | 29.20 | e | 42.32 | l | 51.42 | e | 57.31 | e | 63.35 | d | 75.67 | b | 71.90 | g | 59.35 | g | 55.57 | i | 35.52 | f | 35.76 | h | 52.36 | f |
2004 | 32.92 | y | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2005 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2006 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2007 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2008 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2009 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2011 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2012 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2013 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 30.42 | 33.26 | 38.47 | 46.70 | 56.35 | 66.26 | 72.30 | 70.19 | 62.24 | 50.95 | 38.58 | 32.36 | 49.67 | |||||||||||||
S.D. | 4.38 | 4.41 | 3.64 | 3.28 | 2.61 | 2.78 | 2.02 | 1.71 | 2.63 | 3.18 | 3.80 | 3.14 | 1.24 | |||||||||||||
SKEW | -0.10 | -0.11 | -0.59 | -0.02 | -0.16 | 0.01 | 0.04 | -0.12 | -0.37 | -1.20 | -0.33 | 0.32 | 0.86 | |||||||||||||
MAX | 39.04 | 44.29 | 44.76 | 53.25 | 60.96 | 72.04 | 75.97 | 73.57 | 66.67 | 58.66 | 46.30 | 40.65 | 53.07 | |||||||||||||
MIN | 20.71 | 22.02 | 28.98 | 40.65 | 50.27 | 59.87 | 67.39 | 66.32 | 56.58 | 38.61 | 29.78 | 26.83 | 47.75 | |||||||||||||
YRS | 48 | 47 | 45 | 47 | 49 | 51 | 50 | 49 | 45 | 47 | 45 | 46 | 29 |