YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1973 | ----- | z | ----- | z | ----- | z | ----- | z | 31.00 | 33.00 | 41.00 | 42.00 | 30.00 | 21.00 | 14.00 | 12.00 | ----- | z | ||||||||
1974 | -20.00 | 11.00 | 1.00 | 21.00 | b | ----- | z | 31.00 | 40.00 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||||
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 38.00 | 33.00 | 24.00 | a | 1.00 | 7.00 | ----- | z | ||||
1994 | 17.00 | 8.00 | 15.00 | 27.00 | a | 32.00 | 36.00 | a | 46.00 | 49.00 | 42.00 | 18.00 | 7.00 | 4.00 | 4.00 | b | ||||||||||
1995 | 5.00 | 14.00 | 18.00 | 21.00 | 30.00 | 34.00 | 42.00 | 40.00 | 33.00 | 27.00 | 9.00 | 8.00 | c | 5.00 | c | |||||||||||
1996 | 9.00 | -2.00 | 16.00 | 24.00 | 27.00 | 34.00 | a | 48.00 | 43.00 | 29.00 | 12.00 | b | 20.00 | 10.00 | b | -2.00 | e | |||||||||
1997 | -2.00 | 10.00 | 20.00 | a | 16.00 | 28.00 | a | 41.00 | 42.00 | 47.00 | 38.00 | a | 22.00 | 22.00 | a | 7.00 | a | -2.00 | e | |||||||
1998 | 11.00 | a | 18.00 | a | 15.00 | 27.00 | 31.00 | a | 37.00 | 51.00 | b | 47.00 | a | 40.00 | c | 22.00 | c | 19.00 | a | -7.00 | a | -7.00 | n | |||
1999 | 15.00 | b | 12.00 | a | 15.00 | 18.00 | c | 24.00 | b | 35.00 | c | 35.00 | c | 39.00 | a | 28.00 | a | 24.00 | c | 16.00 | c | 7.00 | 7.00 | v | ||
2000 | 10.00 | 17.00 | a | 20.00 | a | 30.00 | c | 24.00 | b | 35.00 | d | 45.00 | d | 47.00 | d | 30.00 | d | 24.00 | d | 15.00 | b | 13.00 | f | ----- | z | |
2001 | 2.00 | 4.00 | l | 17.00 | 16.00 | b | 18.00 | d | 34.00 | d | 46.00 | b | 50.00 | d | 38.00 | c | 23.00 | b | 14.00 | b | 10.00 | b | ----- | z | ||
2002 | 9.00 | c | 12.00 | 13.00 | b | 24.00 | a | 24.00 | c | 32.00 | c | 52.00 | a | 44.00 | h | 34.00 | b | 10.00 | b | 9.00 | d | 13.00 | e | ----- | z | |
2003 | 16.00 | d | 8.00 | c | 15.00 | c | 22.00 | e | 27.00 | a | 38.00 | h | 56.00 | g | 47.00 | k | 37.00 | c | 28.00 | i | 9.00 | e | 15.00 | b | ----- | z |
2004 | 15.00 | i | 15.00 | d | 21.00 | c | 24.00 | c | 35.00 | c | 38.00 | e | 51.00 | g | 44.00 | m | 34.00 | b | 27.00 | h | 10.00 | g | 10.00 | m | ----- | z |
2005 | 7.00 | i | 16.00 | j | 23.00 | t | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 26.00 | 12.00 | a | 4.00 | c | ----- | z | |
2006 | 19.00 | b | 4.00 | b | 15.00 | 22.00 | b | 28.00 | a | 45.00 | 51.00 | 35.00 | a | 29.00 | a | 13.00 | b | 3.00 | c | 3.00 | b | 3.00 | p | |||
2007 | 1.00 | b | 10.00 | d | 24.00 | c | 22.00 | c | 29.00 | a | 37.00 | b | 53.00 | 46.00 | 30.00 | b | 28.00 | d | 11.00 | a | 7.00 | e | ----- | z | ||
2008 | -4.00 | e | 9.00 | a | 15.00 | b | 14.00 | c | 26.00 | b | 37.00 | 46.00 | 40.00 | 36.00 | s | 25.00 | e | 19.00 | -5.00 | a | ----- | z | ||||
2009 | 5.00 | d | 13.00 | a | 14.00 | l | 21.00 | 28.00 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |
2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 34.00 | 21.00 | b | 4.00 | 7.00 | ----- | z | |||
2011 | -2.00 | 4.00 | 21.00 | 22.00 | c | 23.00 | 28.00 | a | 45.00 | b | 49.00 | d | 40.00 | a | 21.00 | f | 13.00 | d | 3.00 | a | -2.00 | v | ||||
2012 | 4.00 | 8.00 | c | 16.00 | 19.00 | 26.00 | 34.00 | 45.00 | a | 45.00 | b | 37.00 | 25.00 | e | 15.00 | -2.00 | -2.00 | k | ||||||||
2013 | -8.00 | 15.00 | 11.00 | 22.00 | 19.00 | 39.00 | a | 54.00 | a | 46.00 | a | 35.00 | 23.00 | 10.00 | -9.00 | g | -9.00 | j | ||||||||
2014 | 5.00 | h | 12.00 | f | 16.00 | g | 21.00 | c | 32.00 | l | 38.00 | i | 48.00 | t | 48.00 | a | 35.00 | 25.00 | a | 5.00 | j | -2.00 | a | ----- | z | |
2015 | -3.00 | a | 8.00 | a | 14.00 | a | 25.00 | 30.00 | j | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 4.42 | 10.21 | 15.89 | 21.81 | 26.84 | 35.56 | 46.38 | 44.18 | 34.30 | 21.74 | 12.10 | 5.32 | 4.50 | |||||||||||||
S.D. | 9.75 | 4.88 | 4.83 | 3.87 | 4.26 | 3.84 | 5.04 | 4.45 | 4.12 | 5.05 | 5.75 | 5.97 | 0.71 | |||||||||||||
SKEW | -0.59 | -0.61 | -1.27 | -0.05 | -0.32 | 0.50 | -0.37 | -0.55 | 0.14 | -1.17 | -0.18 | -0.50 | 0.00 | |||||||||||||
MAX | 19.00 | 18.00 | 24.00 | 30.00 | 35.00 | 45.00 | 54.00 | 50.00 | 42.00 | 28.00 | 22.00 | 15.00 | 5.00 | |||||||||||||
MIN | -20.00 | -2.00 | 1.00 | 14.00 | 18.00 | 28.00 | 35.00 | 35.00 | 28.00 | 10.00 | 1.00 | -7.00 | 4.00 | |||||||||||||
YRS | 19 | 19 | 19 | 21 | 19 | 18 | 16 | 17 | 20 | 19 | 20 | 19 | 2 |