YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 61.92 | 60.45 | 48.13 | 49.97 | 37.30 | 28.58 | 47.73 | f | ||||||
1966 | 26.61 | 27.50 | 31.44 | 40.88 | 50.11 | 51.53 | 59.56 | 60.97 | 57.42 | 44.21 | 35.85 | 29.98 | 43.01 | |||||||||||||
1967 | 29.82 | 32.71 | 31.77 | 36.15 | 47.23 | 56.13 | 63.12 | c | 66.79 | 60.00 | 44.94 | 35.88 | 24.95 | 44.13 | ||||||||||||
1968 | 25.84 | 35.38 | a | 38.23 | 37.38 | 46.58 | 53.60 | 62.52 | 57.98 | 53.18 | 42.87 | 32.82 | 22.73 | 42.43 | ||||||||||||
1969 | 20.68 | 24.54 | 31.47 | 41.68 | 50.39 | 56.78 | 59.65 | 59.52 | 54.95 | 40.03 | 38.23 | 30.71 | b | 42.38 | ||||||||||||
1970 | 27.52 | 35.73 | 32.35 | 34.95 | 48.31 | 58.53 | 63.52 | 62.35 | 48.10 | 42.56 | 33.82 | 24.50 | 42.69 | |||||||||||||
1971 | 28.00 | a | 30.46 | 29.03 | 39.07 | 49.34 | 51.77 | 60.76 | 65.63 | 47.33 | 39.69 | 32.42 | 24.22 | a | 41.48 | |||||||||||
1972 | 21.86 | b | 29.16 | 36.42 | 35.85 | 49.73 | 54.88 | 60.02 | 63.16 | 49.28 | 43.40 | 34.10 | 20.82 | 41.56 | ||||||||||||
1973 | 23.85 | a | 31.09 | 34.98 | 39.33 | 49.05 | 54.78 | 63.44 | 62.37 | 54.53 | 43.63 | 29.77 | 31.13 | 43.16 | ||||||||||||
1974 | 21.98 | 29.83 | a | 32.48 | 40.67 | a | 44.58 | 58.12 | 61.16 | 61.19 | 55.50 | 46.89 | 35.63 | 28.48 | a | 43.04 | ||||||||||
1975 | 24.76 | 25.96 | 30.50 | 34.47 | 46.02 | 52.35 | 64.85 | 57.45 | 54.13 | 42.13 | 31.33 | 30.45 | 41.20 | |||||||||||||
1976 | 29.21 | 29.02 | 28.55 | 38.60 | 49.11 | 51.28 | 61.73 | 57.92 | 56.62 | 45.16 | 38.12 | 31.48 | 43.07 | |||||||||||||
1977 | 24.56 | 35.46 | 29.48 | 44.83 | 43.66 | 58.33 | 60.02 | 62.92 | 50.22 | 43.29 | 30.33 | 27.60 | 42.56 | |||||||||||||
1978 | 28.69 | 32.39 | 39.50 | 40.95 | 45.10 | 55.88 | 61.08 | 58.45 | 51.93 | 45.10 | 28.88 | 18.66 | 42.22 | |||||||||||||
1979 | 14.23 | 28.36 | 36.11 | 40.23 | 49.84 | 56.00 | 62.85 | 62.58 | 57.23 | 46.13 | 29.47 | 31.81 | 42.90 | |||||||||||||
1980 | 20.45 | 31.95 | 31.77 | 44.62 | 48.28 | a | 52.73 | 61.15 | 56.37 | 54.78 | 46.48 | 35.50 | 34.11 | 43.18 | ||||||||||||
1981 | 34.00 | 32.18 | 37.63 | a | 42.27 | 46.45 | 52.05 | 56.35 | 61.92 | 53.62 | 41.58 | 38.17 | 29.77 | 43.83 | ||||||||||||
1982 | 24.85 | a | 25.28 | c | 33.55 | b | 37.55 | a | 46.03 | 55.67 | a | 57.77 | 60.02 | 50.98 | a | 42.03 | a | 30.21 | b | 25.73 | c | 40.81 | ||||
1983 | 32.98 | b | 35.21 | 39.32 | c | 39.62 | a | 48.45 | 53.42 | e | 58.48 | 64.95 | 49.42 | 45.00 | b | 36.60 | 19.10 | a | 43.55 | |||||||
1984 | 27.41 | b | 33.30 | a | 37.65 | 39.00 | 45.42 | 51.54 | d | 60.81 | ----- | z | 51.05 | 39.94 | 33.93 | a | 22.70 | a | 40.25 | a | ||||||
1985 | 20.85 | 24.05 | 30.56 | 45.72 | c | ----- | z | 55.48 | a | 65.21 | 57.75 | a | 47.57 | 42.23 | a | 21.92 | 21.85 | 39.38 | a | |||||||
1986 | 34.11 | 31.39 | 41.95 | 41.14 | a | 50.74 | 59.53 | 57.02 | a | 65.98 | 49.35 | 46.53 | a | 32.23 | d | 28.60 | 44.88 | |||||||||
1987 | 25.92 | 33.55 | 37.52 | 48.07 | 50.82 | 57.41 | a | 59.50 | 58.06 | 55.45 | 46.66 | 36.55 | 27.19 | 44.73 | ||||||||||||
1988 | 25.55 | 34.60 | 35.26 | 44.76 | a | 48.47 | 54.77 | 59.23 | 59.35 | 52.55 | a | 51.31 | 33.90 | a | 27.18 | 43.91 | ||||||||||
1989 | 27.16 | 19.91 | a | 34.58 | 43.83 | 47.55 | 55.73 | 60.69 | 58.76 | 55.42 | 44.34 | 38.78 | 31.85 | 43.22 | ||||||||||||
1990 | 31.03 | 27.82 | 36.24 | 44.60 | 46.19 | 53.75 | 63.35 | 63.29 | 60.93 | 43.00 | 36.85 | 20.47 | b | 43.96 | ||||||||||||
1991 | 25.34 | 38.62 | 33.16 | 40.10 | 44.94 | 50.35 | 60.53 | 64.47 | 56.68 | 45.89 | 33.23 | 32.29 | 43.80 | |||||||||||||
1992 | 31.63 | 38.52 | 41.44 | 44.84 | a | 51.31 | 59.81 | a | 59.68 | 62.00 | 53.45 | 47.35 | 32.25 | 25.18 | 45.62 | |||||||||||
1993 | 22.44 | 24.70 | 37.23 | 40.35 | 52.79 | 52.84 | a | 52.94 | 57.22 | a | 53.00 | 47.02 | 29.57 | 29.82 | a | 41.66 | ||||||||||
1994 | 34.40 | 28.74 | c | 37.50 | 43.72 | 49.08 | a | 51.73 | 62.67 | a | 62.65 | a | 56.37 | 43.55 | 27.26 | a | 28.63 | a | 43.86 | |||||||
1995 | 30.79 | 35.36 | 35.66 | 40.48 | 49.05 | 53.25 | 61.88 | c | 58.53 | a | 56.12 | a | 41.42 | 38.80 | 29.24 | 44.22 | ||||||||||
1996 | 26.90 | 28.21 | 35.53 | 42.70 | b | 44.05 | a | 54.53 | 63.58 | a | 62.76 | 51.83 | 43.84 | 35.03 | 28.24 | 43.10 | ||||||||||
1997 | 28.39 | 29.84 | 35.52 | 39.03 | 51.95 | 53.83 | 59.95 | a | 64.60 | 57.00 | 43.84 | 37.92 | 28.77 | 44.22 | ||||||||||||
1998 | 30.69 | 33.50 | 35.92 | 41.50 | 48.76 | 54.28 | 66.65 | 65.11 | 60.15 | 44.29 | 35.75 | 26.58 | 45.27 | |||||||||||||
1999 | 30.95 | 30.61 | 33.27 | 38.52 | 44.37 | 52.77 | 60.15 | 64.52 | 53.55 | 46.10 | a | 41.10 | a | 29.29 | 43.77 | |||||||||||
2000 | 28.06 | 32.76 | 35.11 | 45.05 | 47.85 | 55.15 | 61.06 | 61.85 | 52.55 | 44.08 | 27.40 | a | 26.27 | 43.10 | ||||||||||||
2001 | 27.50 | 27.77 | 36.35 | 39.66 | a | 50.76 | 52.62 | b | 61.27 | a | 64.71 | 58.78 | 44.89 | 38.40 | 27.16 | 44.16 | ||||||||||
2002 | 28.34 | 30.20 | a | 30.65 | 40.53 | 46.65 | 55.57 | 64.65 | 59.55 | 54.92 | 39.85 | 36.80 | 30.90 | 43.22 | ||||||||||||
2003 | 34.10 | a | 28.46 | 37.11 | 40.95 | 48.05 | 56.57 | 66.60 | 65.48 | 57.57 | 48.94 | 30.10 | 29.82 | 45.31 | ||||||||||||
2004 | 28.48 | 31.03 | 39.60 | 43.82 | 47.22 | a | 55.19 | a | 64.05 | 63.05 | 52.63 | 44.47 | 34.67 | 32.06 | 44.69 | |||||||||||
2005 | 30.00 | 31.95 | 38.23 | 41.82 | 50.10 | 53.45 | 64.45 | 64.00 | 52.25 | 46.27 | 33.95 | 26.37 | 44.40 | |||||||||||||
2006 | 32.85 | 28.38 | 33.26 | 42.07 | 48.57 | d | 56.97 | 67.73 | 63.50 | 56.68 | 43.97 | 35.20 | 30.08 | 44.94 | ||||||||||||
2007 | 23.69 | 33.11 | 40.21 | 42.70 | 49.98 | 55.77 | 68.27 | 62.48 | 54.27 | 45.16 | 34.22 | a | 26.74 | 44.72 | ||||||||||||
2008 | 24.82 | 32.02 | 31.87 | 36.72 | 49.47 | 53.45 | 63.29 | 63.16 | 55.85 | 46.03 | 39.62 | 23.98 | 43.36 | |||||||||||||
2009 | 28.15 | 32.05 | 30.24 | 40.02 | 50.32 | 56.45 | 64.69 | 64.65 | 59.87 | 40.85 | 35.58 | 22.48 | 43.78 | |||||||||||||
2010 | 33.71 | 33.66 | 37.26 | 41.35 | 44.85 | 53.75 | 62.26 | 62.16 | 55.83 | 47.53 | 32.30 | 29.82 | a | 44.54 | ||||||||||||
2011 | 29.84 | 27.70 | a | 35.02 | 36.60 | 45.32 | 53.53 | 60.18 | 64.55 | 60.86 | a | 45.68 | 33.95 | 29.69 | 43.58 | |||||||||||
2012 | 30.66 | 30.22 | 35.61 | 43.98 | 47.56 | 54.22 | 65.29 | 65.69 | 58.27 | 44.65 | 38.00 | a | 28.68 | 45.24 | ||||||||||||
2013 | 26.31 | 31.02 | 36.48 | 40.43 | 50.08 | 56.42 | 66.53 | 66.50 | 58.58 | 42.21 | 34.53 | 26.27 | 44.61 | |||||||||||||
2014 | 31.60 | 26.43 | 37.08 | 42.26 | a | 50.08 | 53.92 | 66.83 | a | 64.40 | 57.65 | 50.26 | 34.83 | a | ----- | z | 46.85 | a | ||||||||
2015 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 61.69 | f | 66.97 | n | 65.29 | 52.78 | g | 51.72 | a | 32.88 | b | 33.81 | o | 49.96 | i | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 27.58 | 30.65 | 35.05 | 40.93 | 48.14 | 54.66 | 62.02 | 62.18 | 54.49 | 44.69 | 34.16 | 27.41 | 43.54 | |||||||||||||
S.D. | 4.25 | 3.77 | 3.30 | 2.98 | 2.26 | 2.21 | 3.05 | 2.82 | 3.59 | 2.80 | 3.68 | 3.64 | 1.15 | |||||||||||||
SKEW | -0.57 | -0.28 | -0.08 | -0.06 | -0.22 | 0.33 | -0.23 | -0.38 | -0.20 | 0.44 | -0.79 | -0.63 | -0.39 | |||||||||||||
MAX | 34.40 | 38.62 | 41.95 | 48.07 | 52.79 | 59.81 | 68.27 | 66.79 | 60.93 | 51.72 | 41.10 | 34.11 | 45.62 | |||||||||||||
MIN | 14.23 | 19.91 | 28.55 | 34.47 | 43.66 | 50.35 | 52.94 | 56.37 | 47.33 | 39.69 | 21.92 | 18.66 | 40.81 | |||||||||||||
YRS | 49 | 49 | 49 | 49 | 48 | 49 | 50 | 50 | 50 | 51 | 51 | 49 | 46 |