YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1951 | ----- | z | ----- | z | ----- | z | ----- | z | 83.67 | y | 80.27 | 88.81 | 82.67 | a | 78.87 | 63.00 | 46.70 | 37.32 | 68.23 | e | ||||||
1952 | 38.61 | 40.59 | 44.84 | 59.90 | 69.87 | 83.23 | 86.45 | 85.58 | 77.90 | 71.48 | 44.63 | 37.81 | 61.74 | |||||||||||||
1953 | 46.29 | 42.54 | 53.13 | 59.77 | 65.52 | 83.50 | 86.23 | a | 82.90 | 80.50 | 66.13 | a | 52.67 | 41.03 | 63.35 | |||||||||||
1954 | 44.45 | 52.57 | 48.52 | 67.10 | 71.27 | a | 81.47 | 84.97 | 80.71 | 75.33 | 67.29 | 59.50 | 41.55 | 64.56 | ||||||||||||
1955 | 37.35 | 38.68 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 73.88 | m | 66.68 | 49.30 | 42.26 | 46.85 | g | |||||
1956 | 44.26 | 37.52 | 52.32 | 59.46 | b | 73.97 | 84.63 | 83.61 | 81.29 | 80.24 | a | 65.94 | 46.67 | 42.16 | 62.67 | |||||||||||
1957 | 38.26 | 49.00 | 48.37 | a | 56.50 | 62.68 | 78.97 | 82.42 | 77.33 | a | 75.00 | 59.03 | 41.03 | a | 44.52 | 59.43 | ||||||||||
1958 | 40.03 | 45.82 | 42.74 | 55.73 | 72.73 | a | 82.53 | 85.28 | b | 83.58 | 75.70 | c | 65.87 | 52.20 | 49.65 | 62.66 | ||||||||||
1959 | 46.50 | a | 47.67 | a | 52.84 | 61.13 | 69.90 | a | 82.77 | 87.17 | a | 80.97 | 75.11 | b | 64.68 | 50.50 | 42.93 | a | 63.51 | |||||||
1960 | 35.71 | 34.69 | 50.73 | a | 61.97 | 70.26 | 82.73 | 86.10 | a | 85.14 | c | 77.55 | a | 59.45 | b | 51.82 | b | 35.52 | 60.97 | |||||||
1961 | 38.84 | 42.39 | 48.18 | n | 60.36 | h | 71.70 | a | 83.70 | 84.86 | b | 79.68 | 70.00 | 61.11 | c | 44.03 | a | 34.72 | b | 61.10 | b | |||||
1962 | 34.48 | 41.85 | b | 44.70 | d | 64.00 | a | 70.45 | b | 79.33 | 83.42 | 84.17 | b | 73.67 | 63.60 | a | 51.40 | 42.10 | a | 61.10 | ||||||
1963 | 31.42 | 43.21 | 48.81 | 60.53 | 73.87 | 80.37 | 86.90 | 79.29 | 76.70 | 67.55 | 51.03 | 39.90 | 61.63 | |||||||||||||
1964 | 36.45 | 34.45 | 44.48 | 54.73 | 70.19 | 79.53 | 86.16 | 80.00 | 72.77 | 67.39 | 46.87 | 36.81 | 59.15 | |||||||||||||
1965 | 38.32 | 38.71 | 44.90 | 58.69 | a | 66.63 | a | 76.27 | 83.00 | a | 82.71 | 71.87 | ----- | z | 54.83 | 42.41 | b | 59.85 | a | |||||||
1966 | 35.08 | f | 35.88 | c | 52.67 | g | 61.35 | g | 73.17 | h | 80.19 | d | 86.25 | c | 82.87 | 75.64 | e | 65.19 | d | 53.92 | d | 37.52 | b | 64.68 | d | |
1967 | 39.04 | f | 45.64 | c | 56.12 | g | 61.72 | e | 71.00 | g | 76.28 | e | 85.87 | 81.57 | a | 74.43 | 67.10 | 55.62 | a | 35.39 | 64.85 | c | ||||
1968 | 39.23 | a | 44.71 | a | 50.03 | 53.79 | b | 67.89 | c | 81.63 | 84.13 | 77.17 | a | 75.55 | a | 64.38 | b | 46.13 | 37.40 | f | 62.24 | a | ||||
1969 | 42.68 | 39.36 | f | 47.87 | h | 61.07 | 71.07 | a | 76.72 | e | 86.31 | e | ----- | z | ----- | z | 52.64 | t | 48.27 | 43.81 | 61.42 | e | ||||
1970 | 39.21 | b | 49.44 | a | 46.90 | a | 51.52 | e | 72.66 | b | 81.70 | 87.56 | d | 84.97 | a | 73.26 | c | 55.70 | d | 50.21 | b | 41.34 | b | 61.21 | ||
1971 | 38.90 | a | 43.48 | a | 52.45 | 60.14 | i | 68.78 | h | 82.34 | a | 86.81 | 81.42 | 72.17 | a | 59.07 | a | 47.50 | 35.29 | 59.94 | b | |||||
1972 | 40.94 | 47.83 | 59.17 | a | 62.27 | 71.65 | 79.52 | a | 86.10 | 79.61 | 73.50 | b | 58.35 | 40.50 | b | 37.48 | b | 61.41 | ||||||||
1973 | 33.77 | a | 39.96 | 44.83 | b | 52.80 | 67.00 | a | 78.60 | 81.77 | 80.81 | 70.97 | 65.13 | 50.37 | 38.58 | 58.72 | ||||||||||
1974 | 33.29 | 36.89 | 54.13 | a | 57.31 | a | 71.24 | b | 81.60 | 83.11 | c | 80.86 | b | 73.86 | a | 61.97 | b | 48.70 | 36.03 | a | 59.92 | |||||
1975 | 35.35 | 38.54 | 47.87 | 55.87 | 66.87 | 79.17 | 82.23 | 81.74 | 71.90 | 66.52 | 50.33 | 41.29 | 59.81 | |||||||||||||
1976 | 39.32 | 49.00 | 51.35 | 61.23 | 71.26 | 81.00 | 84.77 | r | 81.39 | 73.43 | ----- | z | ----- | z | 44.80 | p | 63.50 | d | ||||||||
1977 | ----- | z | ----- | z | 53.50 | i | 65.10 | a | 71.11 | d | 80.89 | k | ----- | z | 81.74 | h | ----- | z | 64.19 | d | 52.93 | ----- | z | 63.33 | h | |
1978 | ----- | z | ----- | z | 59.94 | m | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1979 | ----- | z | 45.00 | 48.76 | b | 57.40 | 66.61 | ----- | z | 86.38 | g | 74.50 | u | 78.65 | j | ----- | z | ----- | z | 44.72 | b | 52.50 | g | |||
1980 | 43.36 | f | ----- | z | 49.17 | h | 58.50 | 69.33 | g | 87.37 | c | 90.06 | n | 80.54 | g | 75.05 | j | 68.35 | e | ----- | z | ----- | z | 71.41 | i | |
1981 | ----- | z | ----- | z | ----- | z | 72.71 | p | 68.45 | 83.43 | 88.40 | p | 82.95 | i | 76.40 | ----- | z | 56.81 | c | 48.36 | c | 66.69 | g | |||
1982 | 36.83 | b | 40.90 | g | 52.04 | e | 60.64 | b | 67.64 | c | 79.50 | b | 83.25 | c | 81.18 | c | ----- | z | 61.73 | a | 47.37 | 39.04 | c | 60.92 | b | |
1983 | 40.41 | b | 42.29 | d | 46.75 | g | 51.64 | e | 67.54 | e | 76.48 | a | 84.20 | a | 83.00 | 77.90 | 63.71 | c | 48.68 | e | 37.41 | b | 61.21 | a | ||
1984 | 37.13 | 41.55 | 49.71 | c | 54.67 | f | 67.85 | e | 69.92 | f | ----- | z | 84.15 | k | 74.97 | a | 53.96 | d | 50.72 | e | 41.75 | g | 53.70 | e | ||
1985 | 38.64 | f | 38.60 | h | 49.27 | e | 61.21 | b | 70.48 | b | 80.70 | c | ----- | z | 85.18 | t | 70.63 | 62.72 | b | 47.62 | a | 39.90 | 60.32 | d | ||
1986 | 47.17 | b | 45.30 | a | 54.48 | 59.93 | 69.84 | ----- | z | 80.62 | b | 82.65 | 69.13 | 58.29 | 46.50 | 39.71 | 59.42 | a | ||||||||
1987 | 36.52 | 39.43 | 45.19 | 60.93 | 65.68 | 80.53 | 83.30 | a | 79.26 | 73.60 | 65.97 | a | 48.45 | a | 35.74 | 59.55 | ||||||||||
1988 | 32.19 | 41.66 | 48.60 | a | 59.76 | a | 68.03 | a | 80.07 | a | 84.03 | 78.19 | 71.45 | a | 66.58 | 48.10 | a | 38.94 | 59.80 | |||||||
1989 | 35.97 | 41.43 | 57.48 | b | 66.90 | 73.93 | a | 79.43 | 84.43 | a | 78.81 | 75.63 | 61.23 | 50.60 | 40.71 | 62.21 | ||||||||||
1990 | 36.06 | 40.18 | 51.03 | 59.27 | 67.03 | 83.87 | 81.29 | 79.39 | 74.10 | a | 61.71 | 48.93 | a | 33.77 | 59.72 | |||||||||||
1991 | 33.32 | 45.50 | 45.93 | c | 58.17 | 69.55 | 76.53 | 82.71 | 80.43 | a | 73.93 | 64.03 | 42.30 | 37.55 | 59.16 | |||||||||||
1992 | 34.35 | 42.18 | a | 50.87 | ----- | z | 67.86 | q | 77.63 | c | 81.20 | a | 79.65 | 74.44 | c | 64.43 | a | 40.90 | 34.29 | 57.99 | b | |||||
1993 | 38.77 | 41.11 | 50.68 | 58.77 | 68.74 | 78.53 | 83.84 | 77.61 | 73.21 | a | 59.83 | a | 44.40 | 39.40 | a | 59.57 | ||||||||||
1994 | 41.10 | 41.14 | 53.55 | 58.03 | 69.94 | 83.66 | a | 85.13 | 82.97 | 73.23 | 59.19 | 45.67 | 42.32 | 61.33 | ||||||||||||
1995 | 36.55 | 49.11 | 50.70 | a | 54.77 | 62.71 | 76.45 | a | 82.81 | 83.77 | 73.48 | a | 63.23 | a | 52.87 | 41.90 | 60.70 | |||||||||
1996 | 40.84 | 48.48 | 52.17 | a | 61.17 | 75.39 | 81.27 | 85.29 | 81.64 | c | 69.27 | 60.29 | 48.27 | 41.15 | d | 62.10 | ||||||||||
1997 | 35.16 | 41.89 | 56.68 | 56.23 | 70.53 | a | 77.43 | 82.13 | 80.07 | a | 75.87 | 60.71 | 46.33 | 36.55 | 59.97 | |||||||||||
1998 | 39.00 | b | 37.07 | 49.13 | 55.30 | 71.66 | b | 79.29 | b | 83.71 | 82.69 | e | 79.04 | b | 60.26 | 51.59 | a | 42.63 | a | 60.95 | ||||||
1999 | 44.48 | 50.16 | c | 55.90 | 56.60 | 66.13 | a | 77.80 | 80.10 | b | 76.68 | 71.83 | a | 66.65 | 58.47 | 39.47 | a | 62.02 | ||||||||
2000 | ----- | z | 47.76 | ----- | z | ----- | z | 74.08 | e | 81.71 | b | 85.83 | b | 83.00 | c | 76.97 | 58.61 | 39.50 | ----- | z | 68.43 | d | ||||
2001 | 36.39 | 43.79 | 49.90 | 61.77 | 71.84 | 82.21 | b | 83.72 | f | 79.57 | a | 77.14 | a | 66.03 | 50.66 | a | 37.70 | a | 59.73 | a | ||||||
2002 | 37.93 | a | 43.21 | 51.63 | a | ----- | z | 72.40 | a | 86.14 | a | 85.73 | e | 82.43 | a | 72.48 | a | 57.93 | b | 48.27 | 37.06 | 61.38 | a | |||
2003 | 46.37 | a | 41.61 | 49.10 | 60.62 | a | 71.65 | 80.24 | a | 89.45 | 81.66 | b | 74.19 | d | 67.21 | c | 45.44 | c | 43.72 | b | 62.60 | |||||
2004 | 39.96 | c | ----- | z | 57.69 | b | 56.86 | a | ----- | z | 81.07 | a | 83.52 | d | 79.93 | a | 73.48 | e | 59.41 | b | ----- | z | 39.97 | 63.54 | c | |
2005 | 43.61 | c | 41.78 | a | ----- | z | ----- | z | 70.38 | b | 79.03 | 87.67 | a | 78.73 | a | 75.57 | ----- | z | 52.70 | 41.34 | b | 63.42 | c | |||
2006 | 42.33 | a | 47.00 | 49.19 | 64.90 | a | 74.50 | c | 84.03 | a | 82.77 | a | 77.43 | a | 68.40 | e | 60.23 | a | 53.40 | 39.39 | 61.96 | |||||
2007 | 35.24 | f | 44.18 | 53.90 | 59.83 | a | 67.71 | 80.80 | 85.69 | b | 82.73 | a | 75.73 | 64.35 | 56.10 | 38.43 | c | 64.50 | a | |||||||
2008 | ----- | z | 39.11 | a | 53.63 | a | 60.40 | 69.68 | c | 81.00 | 83.56 | d | 83.68 | 76.00 | 65.16 | 53.33 | ----- | z | 66.55 | b | ||||||
2009 | ----- | z | ----- | z | ----- | z | ----- | z | 72.24 | b | ----- | z | ----- | z | 82.65 | ----- | z | ----- | z | ----- | z | ----- | z | 77.44 | j | |
2010 | ----- | z | ----- | z | 47.68 | f | ----- | z | 70.48 | j | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2011 | ----- | z | 39.85 | b | 54.65 | k | 61.56 | n | 68.73 | t | ----- | z | 86.85 | k | 83.62 | r | ----- | z | ----- | z | ----- | z | ----- | z | 39.85 | k |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 38.83 | 42.86 | 50.45 | 59.17 | 69.84 | 80.66 | 84.54 | 81.16 | 74.39 | 63.11 | 49.28 | 39.77 | 61.12 | |||||||||||||
S.D. | 3.98 | 4.23 | 3.85 | 3.58 | 2.87 | 2.57 | 2.11 | 2.18 | 2.72 | 3.63 | 4.44 | 3.39 | 1.48 | |||||||||||||
SKEW | 0.38 | 0.15 | 0.14 | -0.03 | -0.40 | 0.21 | 0.08 | -0.14 | 0.04 | -0.26 | -0.04 | 0.57 | 0.31 | |||||||||||||
MAX | 47.17 | 52.57 | 59.17 | 67.10 | 75.39 | 87.37 | 89.45 | 85.58 | 80.50 | 71.48 | 59.50 | 49.65 | 64.56 | |||||||||||||
MIN | 31.42 | 34.45 | 42.74 | 51.52 | 62.68 | 76.27 | 80.10 | 76.68 | 68.40 | 53.96 | 39.50 | 33.77 | 58.72 | |||||||||||||
YRS | 46 | 50 | 45 | 46 | 50 | 52 | 48 | 50 | 51 | 51 | 53 | 50 | 30 |