YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 21.36 | b | -4.57 | c | 8.39 | j |
1964 | 0.03 | -2.28 | 1.23 | 27.76 | a | 39.73 | a | 47.22 | c | 54.77 | a | 49.17 | a | 38.97 | 33.37 | d | 18.30 | -6.58 | 25.14 | |||||||
1965 | -13.48 | -9.00 | -2.32 | 28.90 | 39.00 | 47.80 | 49.58 | 47.77 | 35.30 | 33.36 | c | 10.89 | b | 8.47 | a | 23.02 | ||||||||||
1966 | -22.29 | -12.07 | 15.74 | 25.27 | 33.81 | 50.07 | 55.71 | 49.45 | 40.93 | 31.70 | a | 9.90 | a | -3.62 | b | 22.88 | ||||||||||
1967 | -6.65 | -16.96 | 9.71 | 25.27 | 33.61 | 47.17 | 50.16 | 47.65 | 43.47 | 31.43 | a | 17.38 | a | 2.39 | 23.72 | |||||||||||
1968 | -9.65 | -10.71 | a | 13.77 | 26.90 | 37.65 | 47.87 | 51.87 | 50.39 | 44.21 | a | 32.55 | 19.73 | -0.58 | 25.33 | |||||||||||
1969 | -11.65 | 0.89 | 1.77 | 29.90 | 39.23 | 40.97 | 50.90 | 54.32 | 43.43 | 29.26 | 18.17 | 6.90 | 25.34 | |||||||||||||
1970 | -11.39 | -8.50 | -1.10 | 25.76 | a | 36.97 | 52.57 | 54.87 | 48.35 | 41.23 | 32.21 | c | 15.87 | -8.27 | a | 23.22 | ||||||||||
1971 | -18.06 | -2.79 | 9.32 | 27.27 | 35.19 | 51.83 | 48.87 | 49.84 | 41.30 | 34.89 | c | 16.27 | -3.45 | 24.21 | ||||||||||||
1972 | -16.48 | -13.24 | 6.90 | a | 25.17 | a | 43.87 | 46.40 | 48.10 | 49.81 | 37.63 | 29.74 | 18.23 | -8.20 | a | 22.33 | ||||||||||
1973 | -2.10 | -0.57 | 24.10 | 25.50 | 37.26 | 48.97 | 49.67 | a | 54.52 | 40.87 | 38.29 | 14.66 | a | -0.61 | 27.54 | |||||||||||
1974 | -13.68 | -8.54 | 4.65 | 27.03 | 37.00 | 46.90 | 55.90 | 48.19 | 35.23 | 31.10 | 18.87 | 8.71 | 24.28 | |||||||||||||
1975 | ----- | z | ----- | z | ----- | z | ----- | z | 40.96 | g | 46.37 | 54.83 | a | 49.65 | h | 38.40 | 34.35 | 19.80 | -0.90 | 32.14 | f | |||||
1976 | -9.17 | a | 5.15 | b | 6.39 | 30.78 | c | 36.55 | 51.20 | 51.06 | 51.52 | 38.87 | 25.10 | 9.40 | -12.93 | a | 23.66 | |||||||||
1977 | -17.15 | d | ----- | z | 24.58 | g | 30.70 | 50.06 | 50.27 | 53.94 | 43.68 | 44.60 | ----- | z | ----- | z | ----- | z | 36.59 | e | ||||||
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1979 | -19.71 | -11.64 | 10.14 | b | 20.86 | a | 34.16 | 44.57 | 54.35 | 47.10 | 41.43 | 28.19 | 13.86 | a | 8.87 | a | 22.68 | |||||||||
1980 | -8.13 | -5.52 | 0.65 | 29.03 | 40.94 | 46.50 | 53.06 | 48.19 | 39.67 | 27.50 | a | 18.80 | -3.97 | 23.89 | ||||||||||||
1981 | -3.84 | 4.14 | 16.35 | 29.94 | m | 35.81 | 46.90 | 51.68 | 52.00 | 39.60 | 32.32 | 26.30 | 0.77 | a | 27.46 | a | ||||||||||
1982 | -23.65 | h | -5.96 | e | 10.00 | h | 24.50 | b | 41.53 | a | 39.39 | b | 53.26 | 47.65 | 40.75 | b | 33.89 | c | 12.11 | c | 4.44 | f | 31.90 | c | ||
1983 | 11.23 | r | ----- | z | ----- | z | 24.70 | 32.55 | b | 49.88 | d | 58.93 | a | 56.23 | 43.38 | a | 33.00 | b | 22.83 | f | -15.00 | n | 42.67 | e | ||
1984 | -3.92 | g | 11.83 | e | 9.68 | c | 29.97 | 33.32 | 49.37 | c | 51.13 | 52.93 | b | 36.28 | a | 35.30 | d | 17.25 | f | ----- | z | 34.42 | c | |||
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 32.08 | f | 3.74 | c | -14.23 | i | 3.74 | k |
1986 | -3.38 | b | -4.00 | f | 14.81 | e | 31.14 | a | 41.93 | c | 48.47 | 57.61 | 49.35 | 41.70 | c | 29.14 | b | 5.62 | i | 3.29 | 31.41 | b | ||||
1987 | -2.13 | a | 13.39 | 15.57 | a | 32.62 | a | 42.57 | a | 49.07 | c | 54.65 | 49.73 | a | 42.40 | 24.82 | c | 19.60 | 9.19 | 29.29 | ||||||
1988 | -15.32 | -13.62 | 12.62 | b | 24.66 | a | 42.03 | ----- | z | ----- | z | 53.13 | 43.59 | a | 27.94 | ----- | z | ----- | z | 21.88 | d | |||||
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 49.25 | j | 53.39 | 52.03 | 41.13 | 27.58 | 15.87 | -8.84 | 30.19 | f | ||||||
1991 | -14.42 | 4.00 | 11.90 | a | 32.23 | 43.90 | a | ----- | z | 54.84 | 52.13 | 40.67 | ----- | z | ----- | z | ----- | z | 28.16 | d | ||||||
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1999 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2000 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2001 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2002 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2004 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2005 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2006 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2007 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2008 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2009 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 |
2013 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | -10.93 | -4.10 | 9.09 | 27.54 | 38.64 | 47.72 | 53.05 | 50.21 | 40.60 | 31.18 | 16.15 | -0.70 | 24.44 | |||||||||||||
S.D. | 6.43 | 8.56 | 6.86 | 3.02 | 4.29 | 3.15 | 2.78 | 2.84 | 2.62 | 3.37 | 4.94 | 6.70 | 1.89 | |||||||||||||
SKEW | 0.10 | 0.53 | 0.09 | -0.08 | 0.68 | -1.01 | 0.09 | 0.10 | -0.52 | -0.11 | -0.55 | 0.07 | 1.33 | |||||||||||||
MAX | 0.03 | 13.39 | 24.10 | 32.62 | 50.06 | 52.57 | 58.93 | 56.23 | 44.60 | 38.29 | 26.30 | 9.19 | 29.29 | |||||||||||||
MIN | -22.29 | -16.96 | -2.32 | 20.86 | 32.55 | 39.39 | 48.10 | 43.68 | 35.23 | 24.82 | 3.74 | -12.93 | 22.33 | |||||||||||||
YRS | 20 | 20 | 20 | 22 | 23 | 22 | 24 | 24 | 25 | 23 | 21 | 20 | 15 |