YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 77.20 | o | 81.03 | 76.24 | 69.92 | 54.66 | 41.75 | 30.15 | 58.96 | f | ||||||
1961 | 26.65 | 39.18 | 41.19 | d | 51.55 | 61.71 | 76.27 | 81.35 | 78.52 | 62.78 | 51.37 | 34.77 | 30.50 | 52.99 | ||||||||||||
1962 | 23.29 | 33.82 | 39.02 | 55.73 | 59.66 | 70.57 | 78.53 | 79.35 | h | 68.62 | 56.39 | 42.19 | a | 28.30 | a | 50.56 | a | |||||||||
1963 | 23.48 | 41.19 | d | 41.43 | a | 46.67 | a | 64.72 | a | 62.98 | i | 82.05 | t | 78.56 | d | 70.05 | a | 60.74 | b | 41.23 | 27.37 | 49.54 | b | |||
1964 | 27.64 | c | 30.63 | b | 37.92 | a | 48.84 | a | 59.30 | d | 67.13 | 81.75 | a | 77.55 | a | 66.19 | a | ----- | z | 39.58 | 36.45 | 52.09 | a | |||
1965 | 35.73 | 37.11 | 39.35 | ----- | z | 57.69 | 68.90 | 78.67 | b | 74.90 | a | 60.78 | a | 55.48 | 45.52 | 29.58 | 53.06 | a | ||||||||
1966 | 30.19 | 33.48 | 43.94 | 52.23 | 68.17 | s | 72.85 | 82.60 | a | 78.66 | 69.98 | 52.10 | 44.73 | 28.31 | 53.55 | a | ||||||||||
1967 | 30.06 | 39.07 | 46.60 | 47.43 | 58.52 | 64.66 | a | 80.05 | a | 79.15 | 67.38 | 53.16 | 42.39 | b | 26.27 | a | 52.89 | |||||||||
1968 | 23.48 | d | 42.10 | h | 44.69 | 46.55 | 59.40 | 68.28 | 80.00 | 71.23 | 63.25 | 52.13 | a | 40.54 | d | 26.40 | a | 52.36 | a | |||||||
1969 | 33.03 | b | 32.25 | b | 38.33 | d | 52.18 | e | 67.33 | d | 66.40 | i | 78.70 | f | 81.17 | g | ----- | z | 50.12 | f | 38.08 | d | 31.63 | a | 41.83 | e |
1970 | 33.02 | f | 38.52 | a | 40.00 | c | 43.73 | h | 61.18 | f | 68.98 | a | 78.56 | 79.97 | 62.97 | 48.94 | 42.78 | 25.15 | 53.98 | c | ||||||
1971 | 32.38 | b | 35.89 | a | 42.50 | 49.78 | 59.21 | 70.57 | 79.79 | 79.03 | 64.30 | 49.27 | 38.03 | 29.53 | 52.52 | |||||||||||
1972 | 31.89 | 38.28 | 50.26 | 51.98 | 63.18 | 73.25 | 80.61 | 75.83 | a | 65.60 | 54.37 | 39.18 | 23.29 | 53.98 | ||||||||||||
1973 | 19.90 | 33.57 | 40.71 | 49.03 | 63.37 | 71.43 | 78.08 | 79.26 | 64.23 | 55.48 | 40.88 | 34.85 | 52.57 | |||||||||||||
1974 | 30.68 | 35.75 | 48.44 | 50.40 | 63.56 | 77.27 | 80.37 | 75.90 | 67.73 | 53.08 | 41.47 | 31.06 | 54.64 | |||||||||||||
1975 | 27.74 | 35.61 | 42.40 | b | 44.40 | 56.87 | 68.55 | 79.69 | 75.76 | 67.32 | 53.58 | 36.90 | 33.40 | 51.85 | ||||||||||||
1976 | 30.40 | 36.00 | 38.85 | 50.35 | 64.08 | 70.22 | 80.26 | 74.66 | 68.05 | 51.34 | 41.18 | 27.10 | 52.71 | |||||||||||||
1977 | 28.39 | 36.11 | 40.18 | 55.87 | 56.50 | 76.62 | 80.11 | 77.13 | 68.95 | a | 55.40 | 43.23 | 39.73 | 54.85 | ||||||||||||
1978 | 35.97 | 39.95 | 48.92 | 51.67 | 59.98 | 71.72 | 79.05 | 74.84 | 65.00 | 55.23 | 37.82 | 26.29 | 53.87 | |||||||||||||
1979 | 22.17 | a | 33.25 | 42.95 | b | ----- | z | 63.10 | b | 73.48 | d | 80.73 | a | 76.65 | a | 70.13 | 56.70 | c | 33.39 | c | 31.58 | g | 55.26 | b | ||
1980 | 32.13 | a | 34.45 | 41.77 | c | 54.39 | c | 57.60 | a | 69.72 | e | 81.07 | b | 76.13 | d | 65.96 | e | 52.71 | 40.78 | a | 33.94 | 53.39 | ||||
1981 | 30.45 | b | 38.38 | b | 43.87 | d | 53.40 | f | 59.70 | i | 75.09 | a | 81.38 | c | 79.36 | c | 69.58 | d | 50.64 | c | 44.21 | b | 37.73 | i | 57.00 | c |
1982 | 30.53 | 35.62 | c | 43.32 | a | 48.59 | c | 59.35 | e | 69.55 | b | 77.29 | c | 79.75 | a | 63.95 | 47.39 | 37.03 | a | 30.73 | a | 51.93 | ||||
1983 | 32.32 | a | 37.57 | 43.62 | a | 44.77 | 55.98 | 68.25 | 76.73 | 76.27 | 67.87 | 53.37 | 41.37 | 29.36 | b | 52.29 | ||||||||||
1984 | 15.44 | 17.36 | 37.48 | 47.02 | 62.11 | 66.95 | 77.26 | 75.56 | 65.88 | 47.81 | 39.97 | a | 26.57 | b | 48.28 | |||||||||||
1985 | 21.95 | a | 27.35 | a | 39.37 | 54.38 | 63.10 | 73.38 | a | 79.42 | 73.40 | 60.62 | 47.47 | a | 32.78 | 22.90 | 49.68 | |||||||||
1986 | 24.95 | 40.41 | a | 49.02 | a | 48.22 | 58.65 | 73.57 | 74.21 | 79.90 | 60.53 | 47.60 | 40.62 | a | 25.98 | 51.97 | ||||||||||
1987 | 21.85 | a | 35.52 | 43.72 | a | 55.13 | 62.45 | 72.92 | 75.68 | a | 75.05 | 66.30 | 54.81 | 38.55 | 29.68 | a | 52.64 | |||||||||
1988 | 20.78 | d | 31.38 | 42.44 | 52.45 | a | 60.64 | b | 75.00 | 81.42 | 76.24 | 64.88 | 58.42 | a | 41.93 | 26.57 | d | 52.68 | ||||||||
1989 | 20.83 | e | 25.55 | 46.69 | e | 56.67 | 61.11 | 68.84 | a | 82.52 | c | 76.54 | e | 65.19 | d | 53.60 | a | 39.19 | a | 29.33 | a | 52.17 | ||||
1990 | 33.15 | 31.54 | a | 45.08 | a | 56.17 | a | 59.12 | a | 72.39 | b | 80.27 | a | 76.29 | b | 69.72 | e | 53.50 | 40.05 | a | 20.13 | a | 53.12 | |||
1991 | 24.78 | h | 37.89 | i | 40.58 | f | 48.50 | d | 56.44 | f | 69.46 | f | 79.21 | b | 78.30 | c | 67.48 | e | ----- | z | 38.50 | m | 26.13 | a | 59.92 | g |
1992 | 23.67 | b | 38.88 | d | 48.05 | a | 57.88 | a | 64.52 | c | 71.30 | e | 75.95 | c | 77.30 | a | 65.20 | b | 55.31 | b | 32.40 | a | 26.60 | e | 53.09 | |
1993 | 19.63 | 27.15 | a | 43.82 | a | 50.19 | a | 64.12 | b | 66.55 | 73.62 | a | 75.95 | 66.42 | d | 52.21 | c | 33.81 | a | 29.76 | b | 50.27 | ||||
1994 | 35.07 | a | 34.08 | b | 46.02 | b | 52.82 | b | 64.22 | a | 74.90 | 81.28 | b | 80.63 | 70.32 | e | 51.63 | a | 33.19 | d | 32.48 | 54.72 | ||||
1995 | 34.19 | d | 41.14 | 44.87 | a | 49.75 | d | 56.85 | a | 64.77 | 77.82 | c | 78.19 | 69.61 | g | 51.40 | f | 44.41 | c | 35.50 | a | 52.75 | b | |||
1996 | 33.58 | a | 32.41 | 44.89 | c | 52.21 | b | 60.81 | b | 74.69 | d | 80.90 | b | 77.25 | a | 64.76 | c | 53.84 | c | 42.06 | c | 35.60 | b | 54.42 | ||
1997 | 30.82 | 34.98 | a | 45.83 | a | 47.88 | a | 62.97 | a | 71.80 | 76.15 | d | 80.24 | b | 68.05 | 52.50 | b | 42.02 | a | 28.07 | c | 53.44 | ||||
1998 | 36.53 | 37.73 | 44.41 | b | 48.19 | d | 59.48 | a | 66.17 | 81.44 | 79.94 | 69.09 | a | 51.13 | 42.36 | a | 29.58 | 53.84 | ||||||||
1999 | 36.57 | a | 37.38 | b | 46.65 | 46.73 | 59.03 | b | 71.79 | a | 80.77 | a | 78.24 | 65.18 | b | 54.42 | 44.73 | 31.73 | a | 54.44 | ||||||
2000 | 35.66 | 39.52 | a | 43.97 | 56.43 | 64.88 | b | 74.52 | 82.68 | a | ----- | z | ----- | z | ----- | z | 32.82 | b | 31.62 | b | 51.34 | c | ||||
2001 | 19.42 | a | 35.40 | b | 61.29 | l | ----- | z | ----- | z | 64.30 | e | 82.11 | i | 81.12 | b | 65.84 | b | 56.20 | c | 43.16 | b | 26.78 | b | 49.03 | d |
2002 | 29.86 | c | 28.20 | ----- | z | 54.47 | a | ----- | z | 74.41 | b | 83.12 | a | 76.83 | d | 66.05 | a | 48.45 | i | 37.76 | e | 33.96 | g | 56.34 | d | |
2003 | 37.62 | f | 34.00 | l | 45.10 | j | 50.89 | h | 62.38 | b | 66.90 | y | 84.63 | d | 80.91 | b | 67.50 | a | 57.78 | b | 38.00 | d | 34.07 | i | 65.20 | f |
2004 | 24.56 | g | 30.50 | 50.35 | e | 55.00 | c | 65.27 | a | 74.53 | a | ----- | z | 76.37 | ----- | z | 53.88 | c | 38.40 | e | 33.00 | f | 55.54 | d | ||
2005 | ----- | z | 37.66 | c | 45.21 | 52.00 | b | 62.42 | 68.82 | 83.84 | b | 76.43 | d | ----- | z | ----- | z | 41.82 | 31.42 | 55.51 | c | |||||
2006 | 33.46 | e | 33.39 | f | 44.55 | j | 55.30 | 64.60 | 76.23 | 85.27 | 81.02 | 64.02 | 52.32 | 40.60 | ----- | z | 61.42 | c | ||||||||
2007 | ----- | z | 36.95 | 46.32 | 52.80 | ----- | z | ----- | z | 83.45 | 81.21 | b | 67.50 | e | 49.72 | b | 40.09 | c | 25.71 | c | 53.75 | c | ||||
2008 | 27.44 | n | 34.34 | 41.48 | a | 45.05 | i | 58.33 | b | 72.96 | b | 81.24 | 78.82 | a | 66.42 | 51.98 | 43.20 | 29.97 | 55.87 | b | ||||||
2009 | 31.37 | 37.55 | 41.94 | 49.08 | 63.81 | 67.40 | a | 79.60 | 75.56 | 68.53 | 48.37 | 37.83 | a | 20.68 | 51.81 | |||||||||||
2010 | 28.05 | i | 35.93 | 41.53 | a | 48.68 | 53.83 | e | 71.38 | b | 80.57 | p | 78.96 | e | 69.23 | 53.48 | a | 37.18 | 32.35 | 52.26 | b | |||||
2011 | 25.34 | 33.70 | a | 43.98 | 47.81 | a | 54.02 | 67.72 | 79.52 | 79.89 | 68.64 | i | 53.28 | a | 38.73 | 22.16 | 49.65 | a | ||||||||
2012 | 31.40 | 34.24 | 46.84 | 54.27 | 62.71 | 73.52 | 81.15 | 80.38 | c | ----- | z | 53.13 | 43.17 | 31.97 | 53.89 | a | ||||||||||
2013 | 10.00 | 21.95 | 44.12 | a | 49.73 | 61.17 | g | 76.80 | j | 82.67 | d | 80.23 | 66.75 | 49.57 | a | 38.78 | n | 18.71 | 47.08 | c | ||||||
2014 | 25.40 | e | 39.30 | 45.83 | b | 52.29 | f | 60.65 | g | 71.09 | b | 82.25 | a | 74.82 | 70.62 | 56.77 | a | 41.24 | k | 35.16 | 55.69 | c | ||||
2015 | 32.74 | 42.93 | 47.29 | b | 52.35 | 60.60 | 78.05 | a | 79.03 | 78.93 | a | 70.87 | 58.44 | 36.27 | 30.21 | 55.64 | ||||||||||
2016 | 22.64 | t | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 28.13 | 34.84 | 43.75 | 51.16 | 60.94 | 71.29 | 80.08 | 77.66 | 66.60 | 53.12 | 39.74 | 29.06 | 52.85 | |||||||||||||
S.D. | 6.08 | 4.88 | 3.24 | 3.41 | 3.11 | 3.48 | 2.47 | 2.22 | 2.66 | 3.04 | 3.38 | 4.32 | 1.58 | |||||||||||||
SKEW | -0.75 | -1.34 | 0.02 | 0.05 | -0.31 | -0.14 | -0.47 | -0.35 | -0.43 | 0.02 | -0.57 | -0.12 | -0.87 | |||||||||||||
MAX | 36.57 | 42.93 | 50.35 | 57.88 | 67.33 | 78.05 | 85.27 | 81.21 | 70.87 | 60.74 | 45.52 | 39.73 | 55.64 | |||||||||||||
MIN | 10.00 | 17.36 | 37.48 | 44.40 | 53.83 | 64.30 | 73.62 | 71.23 | 60.53 | 47.39 | 32.40 | 18.71 | 48.28 | |||||||||||||
YRS | 47 | 51 | 50 | 47 | 46 | 49 | 51 | 53 | 49 | 49 | 53 | 50 | 29 |