YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 40.67 | 36.90 | 38.78 | j | ||
1958 | 35.08 | 44.77 | 44.33 | a | 55.47 | 70.92 | 80.13 | 83.19 | 83.81 | 72.00 | 61.92 | 45.60 | 40.23 | 59.79 | ||||||||||||
1959 | 37.15 | 41.71 | 50.74 | 61.73 | 68.15 | 80.90 | 86.10 | 80.61 | 73.00 | 59.90 | 44.62 | a | 36.94 | 60.13 | ||||||||||||
1960 | 29.10 | 38.03 | 51.31 | 58.52 | 67.02 | 80.03 | 84.87 | a | 82.76 | 75.92 | 58.19 | 46.15 | 31.70 | a | 58.63 | |||||||||||
1961 | 33.37 | 43.45 | 47.66 | 57.20 | 66.95 | 80.75 | 83.66 | 79.27 | 67.68 | 57.79 | 42.23 | 28.18 | a | 57.35 | ||||||||||||
1962 | 31.31 | 41.36 | 42.26 | 60.93 | 63.63 | 74.83 | 82.05 | 81.40 | 73.88 | 60.42 | 48.55 | a | 35.94 | 58.05 | ||||||||||||
1963 | 24.66 | 44.84 | 46.21 | 54.03 | 69.76 | 74.02 | 85.44 | 79.60 | a | 73.18 | 64.90 | 46.98 | 34.13 | 58.15 | ||||||||||||
1964 | 31.71 | 36.31 | 42.85 | 54.30 | 64.58 | 73.97 | 84.44 | 79.97 | 71.48 | 64.10 | 42.33 | 36.26 | 56.86 | |||||||||||||
1965 | 36.87 | 39.39 | 44.68 | 53.65 | 61.60 | 70.10 | 80.61 | 79.48 | 68.58 | 60.53 | 49.62 | 35.44 | 56.71 | |||||||||||||
1966 | 31.52 | 32.96 | 48.31 | 58.23 | 69.61 | 76.68 | 82.52 | 82.39 | 72.00 | 58.02 | 47.25 | 35.74 | 57.94 | |||||||||||||
1967 | 31.45 | 41.18 | 50.81 | 51.68 | 63.11 | 71.53 | 82.48 | 80.29 | 69.92 | 59.95 | 46.92 | 26.02 | 56.28 | |||||||||||||
1968 | 24.11 | 43.38 | 47.82 | 51.38 | 64.02 | ----- | z | 80.06 | 73.29 | 69.07 | 57.44 | 43.69 | c | 28.62 | g | 55.43 | b | |||||||||
1969 | 35.85 | e | 36.60 | d | 41.50 | e | 56.50 | d | 67.57 | d | 72.52 | e | 81.38 | e | 82.19 | 72.90 | 52.68 | 42.00 | b | 35.68 | a | 56.45 | ||||
1970 | 33.82 | 43.91 | 46.31 | 51.28 | 67.42 | 75.65 | 81.63 | 82.00 | a | 69.23 | 54.82 | 45.53 | 35.23 | 57.24 | ||||||||||||
1971 | 33.74 | 40.50 | 47.03 | 54.83 | 62.35 | 76.85 | 84.73 | a | 80.57 | a | 70.30 | 55.34 | 42.12 | 31.74 | 56.68 | |||||||||||
1972 | 35.68 | 42.43 | 55.81 | 58.37 | 67.31 | 76.20 | 83.97 | 79.40 | a | 70.52 | 56.48 | 41.23 | 30.92 | 58.19 | ||||||||||||
1973 | 27.02 | 38.14 | 43.69 | 53.15 | 66.45 | 74.83 | 82.02 | 80.24 | 69.78 | a | 59.09 | b | 46.55 | 37.56 | 56.54 | |||||||||||
1974 | 31.10 | a | 35.06 | c | 52.07 | b | 54.27 | 69.35 | 80.97 | 81.24 | 79.81 | 72.20 | 59.56 | 44.90 | a | 35.87 | a | 58.03 | ||||||||
1975 | 32.90 | 37.96 | 46.16 | 51.13 | ----- | z | ----- | z | 82.08 | 79.79 | 71.86 | a | 57.00 | b | 44.10 | 36.66 | 53.97 | b | ||||||||
1976 | 34.98 | a | 44.25 | a | 46.29 | 56.28 | 68.81 | 77.48 | 83.76 | 79.77 | 70.38 | d | 57.17 | a | 46.53 | 34.53 | 58.35 | |||||||||
1977 | 34.26 | 43.20 | 45.02 | 60.20 | 63.95 | 81.00 | 83.45 | 81.72 | b | 73.93 | 61.60 | 48.13 | 43.23 | 59.97 | ||||||||||||
1978 | 38.48 | 41.79 | 51.61 | 58.02 | 65.03 | 79.53 | 84.68 | 81.87 | 71.71 | a | 63.56 | 46.27 | 29.06 | d | 59.30 | |||||||||||
1979 | 28.82 | 33.09 | 46.53 | 57.98 | 66.24 | b | 75.25 | 83.73 | a | 78.61 | 75.88 | 63.00 | c | 42.15 | 36.48 | 57.32 | ||||||||||
1980 | 38.56 | 43.31 | 45.85 | 55.60 | 62.03 | 76.30 | 83.27 | 80.73 | 71.60 | 58.76 | 46.82 | 43.26 | 58.84 | |||||||||||||
1981 | 41.19 | 43.43 | 49.16 | b | 61.52 | 66.15 | 80.38 | a | 82.47 | 79.29 | 73.55 | 57.37 | 47.72 | 39.95 | 60.18 | |||||||||||
1982 | 35.29 | e | 37.98 | 48.55 | 55.89 | c | 65.52 | b | 75.10 | 81.52 | 78.43 | b | 72.12 | 53.76 | 44.45 | 36.89 | 57.12 | |||||||||
1983 | 37.02 | 42.96 | c | 48.84 | c | 51.13 | 64.42 | 75.50 | 80.95 | 79.63 | 74.60 | e | 59.89 | 47.22 | c | ----- | z | 60.20 | a | |||||||
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1985 | ----- | z | 38.65 | a | 48.63 | a | 61.59 | b | 68.25 | a | 80.13 | 83.50 | 82.45 | 67.87 | 59.03 | a | 45.11 | b | 37.90 | 61.19 | a | |||||
1986 | 40.47 | 45.62 | 53.79 | 58.61 | c | 67.85 | a | 79.33 | a | 80.80 | a | 81.33 | a | 67.82 | 55.35 | 46.30 | b | 37.39 | 59.56 | |||||||
1987 | 33.21 | 40.48 | 45.71 | b | 60.02 | a | 66.58 | a | 79.05 | 79.68 | 78.35 | 72.22 | 62.80 | c | 44.90 | 35.39 | c | 58.20 | ||||||||
1988 | 34.13 | a | 41.50 | 47.61 | d | 56.83 | a | 67.41 | d | 78.65 | c | 84.31 | 79.73 | a | 70.88 | b | 64.71 | 46.33 | c | 34.66 | b | 58.90 | ||||
1989 | 28.13 | a | 37.80 | a | 54.80 | a | 64.18 | 68.14 | b | 77.40 | a | 84.60 | a | 78.77 | a | 72.61 | b | 59.40 | 47.28 | a | 37.11 | 59.18 | ||||
1990 | 34.61 | c | 40.52 | a | 52.25 | g | 60.29 | d | 66.03 | b | 81.43 | a | 81.80 | a | 79.16 | 73.88 | 58.66 | 44.40 | 28.29 | b | 59.01 | a | ||||
1991 | 30.92 | 41.35 | d | 45.89 | c | 54.00 | c | 62.65 | a | 76.76 | a | 82.91 | d | 80.21 | ----- | z | 63.97 | b | 43.24 | a | 33.05 | a | 55.90 | a | ||
1992 | 29.97 | a | 41.48 | d | 49.02 | c | 63.59 | a | 67.65 | 75.42 | 79.27 | i | 79.97 | b | 71.52 | 62.37 | 41.78 | a | 29.63 | a | 55.67 | a | ||||
1993 | 36.58 | a | 40.91 | 51.11 | 58.63 | 68.20 | a | 75.31 | a | 81.92 | 78.50 | a | 72.42 | 57.77 | a | 41.95 | a | 34.90 | 58.18 | |||||||
1994 | 36.68 | a | 38.12 | 52.87 | 58.38 | 68.14 | b | 81.63 | 84.65 | 83.48 | 73.23 | 57.71 | 40.92 | d | 36.35 | a | 59.35 | |||||||||
1995 | 37.39 | 47.98 | a | 50.38 | b | 54.79 | a | 62.57 | a | 71.94 | c | 80.85 | a | 82.29 | 73.86 | b | 59.81 | 49.97 | a | 40.08 | 59.33 | |||||
1996 | 38.22 | a | 44.80 | b | 50.09 | b | 58.92 | 72.02 | a | 80.22 | 85.71 | 82.19 | 71.10 | e | 57.21 | b | 44.77 | 38.07 | a | 60.27 | ||||||
1997 | 37.41 | b | 39.52 | a | 52.16 | 54.29 | b | 70.48 | 76.43 | 81.05 | 79.63 | a | 71.42 | 57.00 | 46.07 | 35.13 | 58.38 | |||||||||
1998 | 39.32 | a | 40.04 | a | 48.12 | c | 52.69 | a | 65.23 | a | 74.12 | a | 84.05 | 81.47 | a | 71.71 | b | 56.82 | a | 45.03 | 36.21 | c | 57.90 | |||
1999 | 40.45 | 43.09 | 52.35 | 52.68 | b | 65.37 | 77.10 | a | 80.97 | 77.65 | 70.76 | a | 61.44 | 47.74 | a | 36.53 | a | 58.84 | ||||||||
2000 | 40.02 | 43.18 | a | 48.15 | a | 62.75 | 72.53 | a | 79.63 | 84.18 | 82.34 | 74.48 | b | 58.95 | 39.52 | 38.08 | 60.32 | |||||||||
2001 | 34.89 | 39.83 | b | 50.48 | 57.37 | 71.35 | a | 78.96 | b | 81.40 | 80.08 | 75.20 | 62.72 | a | 48.28 | 34.39 | 59.58 | |||||||||
2002 | 35.06 | 39.43 | 46.55 | b | 62.57 | a | 68.18 | a | 81.57 | 86.26 | 82.35 | 71.53 | a | 57.07 | b | 44.73 | b | 36.67 | a | 59.33 | ||||||
2003 | 41.27 | 40.80 | a | 49.73 | a | 56.30 | b | 69.63 | 79.03 | 87.68 | 82.68 | 74.02 | 64.23 | c | 43.45 | a | 36.30 | a | 60.43 | |||||||
2004 | 33.93 | b | 36.83 | 55.82 | 58.21 | a | 70.13 | 78.28 | 82.83 | a | 79.13 | 69.86 | a | 57.93 | c | 43.04 | b | 35.79 | 58.48 | |||||||
2005 | 40.53 | a | 41.86 | 48.80 | a | 55.93 | a | 67.84 | 74.53 | 85.71 | 77.63 | 72.32 | 59.80 | a | 46.18 | 36.18 | 58.94 | |||||||||
2006 | 36.69 | 41.07 | a | 45.45 | 59.28 | a | 71.77 | 81.13 | 84.89 | 80.26 | 68.80 | 56.55 | 46.53 | a | 34.79 | 58.94 | ||||||||||
2007 | 32.35 | a | 42.94 | a | 51.83 | b | 59.02 | 69.18 | a | 80.48 | a | 85.48 | 82.44 | 73.43 | a | 58.02 | a | 48.15 | 34.35 | 59.81 | ||||||
2008 | 32.88 | a | 40.47 | 49.48 | 56.32 | 64.80 | c | 77.53 | 84.25 | a | 82.12 | a | 72.86 | a | 59.88 | b | 48.21 | a | 35.18 | 58.66 | ||||||
2009 | 37.45 | a | 41.82 | 49.84 | 57.11 | b | 71.21 | b | 73.07 | b | 84.52 | 80.00 | 74.76 | a | 57.62 | b | 45.98 | 31.61 | 58.75 | |||||||
2010 | 33.58 | 39.09 | 46.89 | 57.28 | c | 63.58 | 77.67 | a | 83.47 | 78.32 | a | 74.03 | 58.82 | 43.38 | 41.38 | b | 58.12 | |||||||||
2011 | 33.65 | 37.50 | b | 50.19 | 56.38 | b | 61.91 | b | 77.53 | 81.73 | 82.82 | 72.52 | 58.61 | 43.50 | 34.35 | 57.56 | ||||||||||
2012 | 37.37 | 40.40 | 49.89 | 59.90 | 72.47 | b | 77.47 | m | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.00 | g | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 34.57 | 40.72 | 48.62 | 57.06 | 67.04 | 77.35 | 83.18 | 80.42 | 71.97 | 59.20 | 45.13 | 35.47 | 58.50 | |||||||||||||
S.D. | 3.99 | 3.03 | 3.26 | 3.33 | 2.96 | 2.94 | 1.80 | 1.86 | 2.04 | 2.82 | 2.44 | 3.46 | 1.14 | |||||||||||||
SKEW | -0.51 | -0.38 | 0.09 | 0.06 | -0.03 | -0.40 | 0.15 | -0.85 | -0.25 | 0.22 | -0.24 | -0.39 | -0.19 | |||||||||||||
MAX | 41.27 | 47.98 | 55.82 | 64.18 | 72.53 | 81.63 | 87.68 | 83.81 | 75.92 | 64.90 | 49.97 | 43.26 | 60.43 | |||||||||||||
MIN | 24.11 | 32.96 | 41.50 | 51.13 | 61.60 | 70.10 | 79.68 | 73.29 | 67.68 | 52.68 | 39.52 | 26.02 | 56.28 | |||||||||||||
YRS | 53 | 54 | 53 | 54 | 53 | 51 | 52 | 53 | 52 | 53 | 54 | 52 | 46 |