YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | 15.00 | 19.00 | 20.00 | c | 27.00 | s | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 4.00 | a | 8.00 | a | ----- | z | ||
1948 | -6.00 | a | -12.00 | a | -12.00 | g | 16.00 | v | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | 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 | 4.00 | ----- | 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 | ----- | 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 | 3.00 | n | 13.00 | k | 18.00 | l | 20.00 | m | 29.00 | h | 41.00 | i | 44.00 | j | 42.00 | n | 34.00 | 25.00 | 7.00 | b | 8.00 | a | ----- | z | ||
2001 | 2.00 | f | 5.00 | b | 8.00 | a | 16.00 | a | 27.00 | 34.00 | a | 42.00 | 45.00 | 37.00 | 29.00 | j | 11.00 | c | -0.00 | f | ----- | z | ||||
2002 | -2.00 | b | -0.00 | d | 7.00 | 19.00 | b | 24.00 | 37.00 | f | 49.00 | 40.00 | a | 36.00 | 27.00 | 18.00 | -3.00 | a | -3.00 | p | ||||||
2003 | 13.00 | a | 9.00 | a | 9.00 | 15.00 | 22.00 | 36.00 | a | 47.00 | a | 49.00 | 36.00 | 29.00 | 11.00 | b | -3.00 | e | -3.00 | k | ||||||
2004 | 1.00 | a | 1.00 | c | 11.00 | 25.00 | a | 30.00 | 35.00 | 36.00 | 44.00 | 31.00 | a | 20.00 | 2.00 | 7.00 | 1.00 | f | ||||||||
2005 | 3.00 | a | 15.00 | c | 10.00 | a | 21.00 | 25.00 | 38.00 | b | 44.00 | 44.00 | 35.00 | 28.00 | a | 6.00 | 7.00 | a | 3.00 | i | ||||||
2006 | 5.00 | b | 11.00 | 10.00 | c | 23.00 | 29.00 | 38.00 | 48.00 | 46.00 | a | 29.00 | 25.00 | 2.00 | c | 7.00 | 2.00 | i | ||||||||
2007 | -5.00 | b | -3.00 | a | 8.00 | 22.00 | 25.00 | 35.00 | 47.00 | 50.00 | 36.00 | 25.00 | i | 12.00 | -0.00 | -5.00 | l | |||||||||
2008 | 6.00 | 8.00 | b | 17.00 | 24.00 | 28.00 | a | 36.00 | 51.00 | 47.00 | 38.00 | 25.00 | 23.00 | 1.00 | a | 1.00 | d | |||||||||
2009 | 15.00 | 8.00 | a | 22.00 | o | 16.00 | a | 33.00 | 36.00 | 49.00 | 44.00 | 34.00 | 12.00 | 20.00 | 2.00 | 2.00 | q | |||||||||
2010 | 10.00 | 14.00 | 18.00 | 22.00 | a | 23.00 | 33.00 | 44.00 | 52.00 | 41.00 | 29.00 | 9.00 | 11.00 | 9.00 | a | |||||||||||
2011 | -6.00 | 1.00 | b | 20.00 | a | 14.00 | 25.00 | 35.00 | 44.00 | 52.00 | 42.00 | 28.00 | 21.00 | 8.00 | -6.00 | c | ||||||||||
2012 | 17.00 | 16.00 | 8.00 | 22.00 | 28.00 | 40.00 | 48.00 | 49.00 | 38.00 | 25.00 | 3.00 | -4.00 | -4.00 | |||||||||||||
2013 | -8.00 | 4.00 | 17.00 | 20.00 | 24.00 | 40.00 | 49.00 | 47.00 | 27.00 | 18.00 | 20.00 | 6.00 | -8.00 | |||||||||||||
2014 | 14.00 | 9.00 | 22.00 | 18.00 | 26.00 | 36.00 | 49.00 | 44.00 | 33.00 | 30.00 | 12.00 | 10.00 | 9.00 | |||||||||||||
2015 | 1.00 | 18.00 | 18.00 | 19.00 | 26.00 | 43.00 | 48.00 | 49.00 | 41.00 | 29.00 | 14.00 | -2.00 | -2.00 | |||||||||||||
2016 | 6.00 | -5.00 | 15.00 | 7.00 | 28.00 | 38.00 | 48.00 | 43.00 | 29.00 | 29.00 | 3.00 | 3.00 | -5.00 | |||||||||||||
2017 | -2.00 | 15.00 | c | 21.00 | 18.00 | 28.00 | 36.00 | 48.00 | 46.00 | 28.00 | 28.00 | 19.00 | 14.00 | -2.00 | c | |||||||||||
2018 | 5.00 | 9.00 | 10.00 | 23.00 | 24.00 | 41.00 | 39.00 | 42.00 | 37.00 | 28.00 | 15.00 | 4.00 | 4.00 | |||||||||||||
2019 | -0.00 | -0.00 | 4.00 | 21.00 | 27.00 | 38.00 | 42.00 | 47.00 | 34.00 | b | 13.00 | 15.00 | 2.00 | -0.00 | b | |||||||||||
2020 | 6.00 | e | 5.00 | a | 16.00 | 20.00 | b | 28.00 | 49.00 | y | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||
2021 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 3.65 | 6.50 | 13.40 | 19.29 | 26.50 | 37.11 | 45.89 | 46.32 | 34.80 | 24.89 | 11.41 | 4.30 | -0.36 | |||||||||||||
S.D. | 7.44 | 7.74 | 5.43 | 4.09 | 2.63 | 2.61 | 3.91 | 3.28 | 4.34 | 5.51 | 6.87 | 5.10 | 5.71 | |||||||||||||
SKEW | 0.21 | -0.51 | 0.02 | -1.27 | 0.47 | 0.61 | -1.08 | 0.09 | -0.20 | -1.35 | 0.09 | -0.05 | 0.53 | |||||||||||||
MAX | 17.00 | 18.00 | 22.00 | 25.00 | 33.00 | 43.00 | 51.00 | 52.00 | 42.00 | 30.00 | 23.00 | 14.00 | 9.00 | |||||||||||||
MIN | -8.00 | -12.00 | 4.00 | 7.00 | 22.00 | 33.00 | 36.00 | 40.00 | 27.00 | 12.00 | 2.00 | -4.00 | -8.00 | |||||||||||||
YRS | 20 | 22 | 20 | 21 | 20 | 18 | 19 | 19 | 20 | 18 | 22 | 20 | 11 |