YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 82.76 | 80.06 | e | 76.38 | 66.15 | 50.93 | a | 40.29 | 66.09 | f | ||||
1949 | 34.68 | 42.84 | c | 51.97 | 66.22 | 68.92 | 80.79 | a | 85.39 | 79.48 | 78.08 | 62.84 | 58.50 | 46.64 | m | 64.52 | a | |||||||||
1950 | 41.10 | 47.32 | 57.23 | t | 65.23 | 70.68 | 76.58 | 85.76 | 82.53 | 74.08 | 68.53 | 57.42 | 51.47 | 65.52 | a | |||||||||||
1951 | 43.69 | 47.62 | 53.65 | 61.93 | 69.98 | 78.13 | 85.58 | 81.32 | 78.27 | 62.65 | 50.67 | 43.37 | p | 64.86 | a | |||||||||||
1952 | 39.62 | n | ----- | z | 48.70 | d | 61.37 | 72.29 | c | 74.42 | 84.85 | 83.35 | a | 77.27 | 69.89 | 51.13 | 44.11 | 66.74 | b | |||||||
1953 | 49.27 | 49.07 | 54.68 | c | 60.73 | 63.29 | e | 75.43 | 87.37 | a | 80.50 | a | 78.17 | a | 64.16 | 53.95 | 43.95 | a | 63.38 | |||||||
1954 | 46.65 | 53.98 | 51.17 | a | 65.50 | b | 74.13 | 77.68 | 86.50 | p | 79.63 | a | 75.32 | 64.82 | 55.47 | 42.77 | 62.47 | a | ||||||||
1955 | 40.52 | 43.14 | 53.65 | 57.04 | b | 68.15 | a | 76.26 | a | 81.95 | a | 84.74 | 76.88 | 66.56 | 51.39 | b | 47.55 | c | 62.32 | |||||||
1956 | 47.98 | c | 45.50 | a | 54.88 | b | 58.90 | d | 68.13 | 79.32 | b | 81.94 | 77.66 | b | 77.45 | 62.88 | e | 51.50 | 45.70 | a | 62.65 | |||||
1957 | 40.05 | c | 54.61 | 56.11 | 61.00 | 65.42 | a | 81.32 | 82.82 | a | 81.48 | 75.13 | 60.39 | 49.30 | 45.65 | 62.77 | ||||||||||
1958 | 47.16 | 51.86 | 50.27 | a | 59.88 | 71.04 | e | 76.65 | m | 82.52 | a | 85.45 | 76.60 | a | 69.65 | a | 53.25 | b | 47.92 | 63.24 | a | |||||
1959 | 47.05 | 46.84 | 57.92 | 66.43 | a | 68.09 | b | 81.82 | 89.29 | 81.94 | 73.78 | 67.94 | 53.79 | a | 47.27 | 65.18 | ||||||||||
1960 | 41.27 | 47.50 | 59.26 | 59.98 | i | 69.87 | 85.40 | 86.74 | 83.18 | 77.82 | 64.69 | 51.47 | 44.60 | 64.71 | a | |||||||||||
1961 | 44.10 | j | 51.28 | a | 54.74 | 63.73 | 66.79 | 83.33 | 87.92 | 82.98 | 73.83 | 65.15 | 49.27 | 43.40 | 65.68 | a | ||||||||||
1962 | 44.60 | 47.43 | 49.08 | 65.57 | 65.61 | 76.97 | 81.82 | 83.13 | 76.42 | 67.02 | 55.52 | a | 45.23 | 63.20 | ||||||||||||
1963 | 41.44 | 56.93 | 51.56 | 56.87 | 71.03 | 75.77 | 81.03 | 81.27 | 76.95 | 67.08 | 53.27 | 44.22 | b | 63.12 | ||||||||||||
1964 | 43.72 | a | 47.39 | a | 50.87 | 59.95 | 66.97 | ----- | z | 84.68 | 83.08 | a | 74.68 | b | 69.34 | 48.18 | 47.69 | 61.50 | a | |||||||
1965 | 47.44 | 50.93 | a | 53.71 | b | 58.55 | 66.84 | b | ----- | z | 81.31 | 82.57 | a | 69.95 | 68.58 | 53.07 | 42.15 | 61.37 | a | |||||||
1966 | 41.19 | b | 44.13 | a | 54.76 | 63.43 | ----- | z | 78.02 | 81.42 | 83.65 | 74.32 | 64.18 | 52.80 | 44.32 | 62.02 | a | |||||||||
1967 | 44.59 | b | 49.68 | 54.68 | a | 50.14 | a | 68.48 | 73.90 | 87.12 | a | 86.80 | a | 76.58 | 68.13 | 58.07 | 42.39 | 63.38 | ||||||||
1968 | 44.58 | 53.77 | a | 54.16 | 59.60 | 69.45 | ----- | z | 85.05 | a | 78.10 | b | 75.78 | 64.95 | a | ----- | z | 39.93 | d | 62.54 | b | |||||
1969 | 46.48 | b | 44.05 | 51.80 | a | 60.71 | d | 71.76 | 75.67 | a | 84.34 | 84.89 | 78.05 | a | 61.82 | a | 53.32 | 45.98 | 63.24 | |||||||
1970 | 44.00 | b | 51.96 | b | 56.50 | k | 55.45 | a | 71.73 | 79.05 | a | 86.95 | a | 86.06 | 73.90 | 63.24 | 54.38 | a | 42.13 | 64.44 | a | |||||
1971 | 44.52 | 50.66 | 54.12 | a | 59.52 | a | 65.74 | 76.60 | 85.19 | 85.03 | 76.48 | 60.44 | 50.67 | 41.13 | a | 62.51 | ||||||||||
1972 | 42.13 | 51.10 | 61.48 | b | 61.40 | 70.13 | 78.50 | 87.39 | 81.87 | 73.22 | a | 61.65 | 50.22 | 40.79 | 63.32 | |||||||||||
1973 | 42.40 | b | 48.75 | 49.58 | a | 60.02 | b | 73.21 | e | ----- | z | ----- | z | 82.27 | 73.41 | a | 64.09 | d | 52.92 | ----- | z | 60.74 | c | |||
1974 | 41.76 | h | 47.64 | c | 55.88 | a | 58.53 | a | 71.56 | 81.52 | b | 84.45 | 81.76 | 79.23 | 66.03 | a | 51.95 | 43.17 | b | 65.61 | a | |||||
1975 | 43.60 | a | 47.77 | 51.60 | a | 53.18 | 69.19 | 78.95 | 83.69 | 80.90 | 77.83 | 63.05 | 50.83 | 47.69 | 62.36 | |||||||||||
1976 | 46.23 | 50.31 | 52.84 | 57.53 | 72.95 | a | 78.00 | a | 84.45 | a | 77.05 | 74.23 | b | 65.10 | 55.93 | 44.08 | 63.22 | |||||||||
1977 | 43.95 | a | 52.26 | a | 50.11 | c | 62.05 | a | 60.80 | a | 80.63 | g | 85.04 | r | 83.02 | f | 73.87 | d | 66.04 | c | 55.14 | e | 49.84 | c | 57.12 | c |
1978 | 48.21 | b | 49.06 | a | 55.84 | c | ----- | z | 68.43 | c | 77.47 | k | 82.77 | 81.98 | 73.36 | a | 69.79 | 50.95 | 40.38 | a | 62.08 | b | ||||
1979 | 40.82 | 46.52 | a | 54.06 | 61.84 | b | 71.43 | c | 78.69 | c | 84.15 | 80.89 | ----- | z | 67.37 | a | 49.08 | 45.97 | b | 61.89 | a | |||||
1980 | 50.03 | 51.90 | ----- | z | 60.44 | c | 65.66 | 74.69 | a | ----- | z | ----- | z | 75.77 | b | 66.37 | 55.31 | c | 49.81 | b | 61.11 | c | ||||
1981 | 47.77 | ----- | z | 53.59 | b | 64.60 | 70.88 | c | 83.22 | 84.37 | 85.58 | 76.97 | 62.19 | 55.46 | b | 48.15 | 66.62 | a | ||||||||
1982 | 44.63 | h | 51.38 | 51.57 | b | 59.26 | a | 71.38 | b | 76.37 | c | 82.41 | b | 82.52 | e | 74.79 | b | 63.66 | b | 48.94 | c | 43.65 | e | 64.17 | a | |
1983 | 46.34 | b | 49.94 | c | 53.16 | c | 53.85 | d | 69.64 | b | 75.90 | d | 80.07 | b | 79.92 | e | 78.68 | b | 65.32 | l | 53.63 | d | 47.27 | c | 62.58 | a |
1984 | 48.78 | d | 48.94 | e | 56.35 | g | 60.43 | b | 76.44 | d | 78.10 | f | 86.22 | b | 83.17 | b | 79.69 | c | 60.41 | d | 51.82 | b | 40.71 | b | 63.66 | b |
1985 | 44.56 | d | 47.40 | b | 52.05 | c | 65.15 | c | 69.15 | a | 81.93 | c | 86.79 | b | 81.28 | a | 71.06 | e | 64.57 | b | 50.25 | b | 46.72 | a | 63.41 | |
1986 | 50.32 | c | 53.05 | 59.45 | b | 62.25 | d | 72.62 | c | 81.33 | c | 82.04 | e | 85.98 | d | 71.46 | d | 64.71 | c | 57.20 | c | 46.12 | c | 65.55 | ||
1987 | 43.72 | b | 51.00 | b | 53.90 | p | 60.20 | y | 70.22 | h | 80.27 | b | 79.57 | a | 83.00 | d | 77.11 | b | 69.08 | e | 52.71 | d | 42.67 | a | 64.35 | c |
1988 | 44.07 | b | 52.27 | c | 56.85 | a | 61.36 | b | 69.79 | b | 77.65 | c | ----- | z | 84.02 | c | ----- | z | 72.13 | a | 54.96 | b | 45.57 | a | 61.87 | b |
1989 | 43.09 | c | 47.30 | a | 60.35 | 70.31 | c | 70.88 | c | 78.94 | c | 85.78 | a | 80.29 | e | 74.60 | e | 62.83 | h | 55.74 | a | 47.62 | c | 64.99 | a | |
1990 | 45.13 | d | 49.33 | b | 58.53 | b | 66.25 | d | 71.71 | e | 80.96 | c | 86.03 | b | 82.30 | d | 77.72 | e | 68.56 | d | 54.27 | d | 38.45 | c | 64.94 | |
1991 | 45.44 | d | 55.55 | 50.42 | e | 60.11 | h | 65.94 | d | 76.44 | e | 84.25 | g | 82.63 | d | 79.65 | d | 71.38 | f | 55.37 | c | 47.02 | 62.05 | c | ||
1992 | 45.11 | c | 52.52 | c | 54.55 | b | 64.81 | a | 73.14 | c | 77.58 | d | 83.30 | d | 85.71 | e | 76.98 | b | 67.92 | e | 51.00 | b | 42.06 | d | 64.56 | |
1993 | 43.02 | f | 48.38 | d | 58.50 | d | 63.77 | b | 71.02 | c | 77.09 | b | 82.03 | b | 81.82 | c | 75.38 | a | 66.78 | d | 51.69 | a | 45.17 | a | 65.60 | a |
1994 | 47.85 | a | 47.15 | a | 60.24 | b | 64.62 | d | 69.10 | f | 83.74 | i | 86.36 | f | 85.73 | a | 76.00 | 63.87 | 45.73 | 46.27 | 59.72 | c | ||||
1995 | 45.77 | 56.55 | 55.98 | 61.19 | a | 65.06 | e | 74.53 | a | 85.56 | 84.41 | d | 78.79 | b | 67.48 | b | 59.95 | a | 48.79 | c | 65.34 | |||||
1996 | 48.65 | 53.10 | c | 57.28 | a | 65.24 | a | 71.50 | e | 81.46 | b | 87.12 | j | 86.17 | a | 77.98 | 66.17 | d | 56.70 | b | 48.90 | a | 64.83 | a | ||
1997 | 49.50 | b | 52.68 | 61.24 | b | 63.57 | a | 76.55 | 77.03 | j | 83.20 | i | 84.02 | b | 78.36 | a | 65.46 | e | 54.29 | b | 44.68 | a | 63.03 | b | ||
1998 | 46.60 | a | 47.10 | c | 54.42 | a | 56.95 | a | 61.67 | b | 74.00 | b | 85.25 | a | 86.19 | b | 75.29 | b | 63.38 | f | 53.25 | h | 46.95 | b | 63.44 | b |
1999 | 49.62 | a | 50.85 | a | 54.50 | b | 57.73 | d | 70.48 | 77.72 | 83.89 | c | 81.84 | b | 78.32 | b | 69.67 | a | 56.57 | a | 48.33 | a | 64.96 | |||
2000 | 49.52 | c | 52.10 | d | 57.48 | a | 66.58 | e | 75.70 | d | 83.23 | b | 84.41 | c | 85.00 | a | 77.05 | b | 65.27 | c | 49.91 | c | 48.14 | c | 66.20 | |
2001 | 45.94 | e | 46.82 | c | 59.35 | 59.48 | c | 78.33 | b | 82.63 | 84.54 | f | 86.62 | f | 78.75 | f | 70.54 | c | 55.52 | g | 45.08 | e | 61.02 | d | ||
2002 | 44.90 | e | 50.84 | c | 54.09 | b | ----- | z | 71.07 | c | 81.10 | t | ----- | z | 85.22 | m | 78.33 | f | ----- | z | 56.54 | b | 46.38 | b | 53.97 | f |
2003 | 53.83 | j | 49.29 | g | 57.62 | c | 58.04 | g | 72.70 | d | 82.04 | d | ----- | z | 84.84 | b | 81.93 | c | 73.63 | d | 49.19 | f | 45.92 | e | 71.24 | e |
2004 | 46.34 | i | ----- | z | ----- | z | 65.18 | k | 72.00 | c | 80.70 | b | 84.47 | b | 83.40 | b | 75.12 | d | 61.80 | k | 51.07 | i | 45.69 | g | 79.13 | g |
2005 | 47.48 | e | 49.52 | f | 54.61 | i | 57.50 | d | 70.02 | e | 75.11 | g | 86.52 | i | 83.96 | c | 72.17 | c | 64.71 | g | 55.98 | c | 46.92 | e | 62.01 | e |
2006 | 47.45 | b | 52.94 | t | 47.67 | d | 59.71 | b | 73.41 | n | 80.83 | l | 88.71 | j | 81.28 | f | 77.21 | k | 62.37 | a | 55.96 | c | 43.55 | c | 52.79 | f |
2007 | 42.50 | g | 50.67 | b | 58.52 | i | 64.23 | d | 72.07 | b | 80.09 | a | 86.50 | c | 84.65 | g | 73.45 | 64.21 | j | 57.95 | j | 40.00 | d | 66.72 | e | |
2008 | 40.59 | i | 49.44 | d | 55.85 | d | 61.76 | a | 70.11 | c | 80.88 | b | 86.32 | f | 86.14 | c | 78.50 | e | 66.17 | m | 58.00 | i | 41.77 | r | 68.95 | e |
2009 | 47.27 | g | 45.85 | h | 51.75 | e | 58.56 | d | 76.48 | h | 75.54 | c | 89.53 | m | 83.43 | d | 79.16 | h | 61.65 | h | 52.48 | i | 41.30 | d | 62.11 | g |
2010 | 43.79 | c | 49.11 | f | 54.02 | a | 56.45 | 64.59 | i | 76.93 | o | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 51.42 | i | |
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 |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 45.21 | 49.78 | 54.51 | 61.06 | 69.96 | 78.69 | 84.33 | 82.84 | 76.07 | 65.87 | 53.23 | 44.98 | 63.78 | |||||||||||||
S.D. | 3.10 | 3.19 | 3.34 | 3.81 | 3.44 | 2.87 | 2.20 | 2.28 | 2.37 | 3.03 | 2.95 | 2.92 | 1.19 | |||||||||||||
SKEW | -0.69 | 0.01 | 0.19 | -0.28 | -0.29 | 0.22 | -0.09 | -0.38 | -0.28 | 0.24 | -0.05 | -0.18 | 0.59 | |||||||||||||
MAX | 50.32 | 56.93 | 61.48 | 70.31 | 78.33 | 85.40 | 89.29 | 86.80 | 81.93 | 73.63 | 59.95 | 51.47 | 66.20 | |||||||||||||
MIN | 34.68 | 42.84 | 47.67 | 50.14 | 60.80 | 73.90 | 79.57 | 77.05 | 69.95 | 60.39 | 45.73 | 38.45 | 62.32 | |||||||||||||
YRS | 52 | 54 | 54 | 55 | 56 | 48 | 46 | 56 | 56 | 52 | 54 | 57 | 20 |