YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1943 | ----- | z | ----- | z | ----- | z | ----- | z | 18.00 | i | 26.00 | 29.00 | 29.00 | a | 20.00 | b | 11.00 | b | 2.00 | -19.00 | ----- | z | ||||
1944 | -22.00 | a | -18.00 | a | -12.00 | a | 8.00 | a | 11.00 | 31.00 | a | 31.00 | 30.00 | 16.00 | b | 13.00 | m | -5.00 | -30.00 | -30.00 | t | |||||
1945 | -10.00 | -4.00 | -26.00 | b | -3.00 | a | 18.00 | 26.00 | 26.00 | 25.00 | 16.00 | 10.00 | -6.00 | c | -17.00 | -26.00 | f | |||||||||
1946 | -10.00 | c | -12.00 | o | -4.00 | -5.00 | 14.00 | a | 26.00 | b | 32.00 | 26.00 | l | 18.00 | 12.00 | a | -3.00 | -25.00 | ----- | z | ||||||
1947 | -30.00 | -19.00 | -12.00 | b | 13.00 | 19.00 | 24.00 | 29.00 | 28.00 | 18.00 | 18.00 | -15.00 | -15.00 | -30.00 | b | |||||||||||
1948 | -22.00 | -35.00 | -24.00 | a | 12.00 | d | ----- | z | 33.00 | 28.00 | r | 29.00 | ----- | 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 | ----- | 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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1995 | ----- | z | ----- | z | -4.00 | 8.00 | 15.00 | 25.00 | 28.00 | 22.00 | 15.00 | -4.00 | -3.00 | d | -15.00 | a | ----- | z | ||||||||
1996 | -33.00 | b | -34.00 | -15.00 | a | 9.00 | 7.00 | 22.00 | a | 24.00 | 22.00 | ----- | z | 1.00 | a | -4.00 | b | -21.00 | c | ----- | z | |||||
1997 | -30.00 | b | -22.00 | -7.00 | -3.00 | c | 18.00 | a | 28.00 | 30.00 | 30.00 | 21.00 | 8.00 | -3.00 | -22.00 | a | -30.00 | g | ||||||||
1998 | -14.00 | a | -16.00 | -9.00 | a | 14.00 | 15.00 | 24.00 | 31.00 | 28.00 | 20.00 | 7.00 | 8.00 | a | -38.00 | b | -38.00 | e | ||||||||
1999 | -16.00 | a | -5.00 | -13.00 | 9.00 | 16.00 | 24.00 | 28.00 | 31.00 | 6.00 | 9.00 | 8.00 | -6.00 | -16.00 | a | |||||||||||
2000 | -19.00 | -20.00 | 2.00 | 14.00 | 16.00 | 26.00 | 31.00 | 26.00 | 12.00 | 11.00 | -12.00 | -26.00 | b | -26.00 | b | |||||||||||
2001 | -18.00 | a | -24.00 | -9.00 | 13.00 | 15.00 | 26.00 | 34.00 | 30.00 | 20.00 | 7.00 | -5.00 | -17.00 | b | -24.00 | c | ||||||||||
2002 | -24.00 | b | -19.00 | a | -15.00 | 8.00 | 12.00 | 27.00 | 30.00 | 22.00 | 16.00 | -13.00 | -14.00 | a | -7.00 | b | -24.00 | f | ||||||||
2003 | -12.00 | a | -36.00 | a | -1.00 | 12.00 | a | 11.00 | 25.00 | 32.00 | 28.00 | 15.00 | -2.00 | a | -12.00 | a | -10.00 | -36.00 | e | |||||||
2004 | -38.00 | -13.00 | -8.00 | 15.00 | 17.00 | 20.00 | 30.00 | 26.00 | 17.00 | 7.00 | -4.00 | -15.00 | a | -38.00 | a | |||||||||||
2005 | -15.00 | b | ----- | z | 7.00 | 8.00 | 16.00 | 28.00 | 30.00 | 24.00 | 19.00 | 15.00 | -9.00 | a | -33.00 | a | ----- | z | ||||||||
2006 | -3.00 | a | -36.00 | a | -12.00 | 12.00 | 14.00 | 27.00 | 33.00 | 25.00 | 19.00 | -9.00 | b | -14.00 | -20.00 | -36.00 | d | |||||||||
2007 | -36.00 | d | -2.00 | b | -13.00 | 14.00 | 15.00 | a | 20.00 | 38.00 | 30.00 | 19.00 | q | 10.00 | i | -5.00 | a | -11.00 | d | ----- | z | |||||
2008 | -27.00 | -6.00 | -8.00 | -6.00 | 14.00 | a | 21.00 | 27.00 | 29.00 | 18.00 | a | ----- | z | 3.00 | -24.00 | ----- | z | |||||||||
2009 | -26.00 | -8.00 | -8.00 | 6.00 | 17.00 | 27.00 | 31.00 | 27.00 | 17.00 | a | 1.00 | -6.00 | -28.00 | a | -28.00 | b | ||||||||||
2010 | -25.00 | a | -14.00 | -1.00 | 8.00 | 10.00 | a | 24.00 | 27.00 | 26.00 | a | 21.00 | 13.00 | -23.00 | a | -22.00 | c | -25.00 | g | |||||||
2011 | -26.00 | a | -23.00 | a | 5.00 | 7.00 | 15.00 | a | 23.00 | 27.00 | 27.00 | 20.00 | 9.00 | -9.00 | -18.00 | a | -26.00 | d | ||||||||
2012 | -15.00 | -5.00 | a | ----- | z | 15.00 | 13.00 | a | 24.00 | 30.00 | b | 19.00 | 14.00 | 6.00 | -12.00 | -11.00 | ----- | z | ||||||||
2013 | -27.00 | -9.00 | -2.00 | 6.00 | 11.00 | 23.00 | 30.00 | 31.00 | 22.00 | 12.00 | -3.00 | d | -27.00 | -27.00 | d | |||||||||||
2014 | -8.00 | -41.00 | -7.00 | 11.00 | 19.00 | b | ----- | z | 29.00 | a | 31.00 | b | 11.00 | 14.00 | -20.00 | -26.00 | ----- | z | ||||||||
2015 | -17.00 | -11.00 | -7.00 | 5.00 | 17.00 | a | 25.00 | 28.00 | a | 26.00 | a | 24.00 | 15.00 | e | -19.00 | -13.00 | -19.00 | h | ||||||||
2016 | -22.00 | -10.00 | 5.00 | 16.00 | 20.00 | b | 24.00 | b | 27.00 | 26.00 | 26.00 | 12.00 | a | 7.00 | a | -34.00 | -34.00 | f | ||||||||
2017 | -37.00 | -4.00 | c | 11.00 | a | 15.00 | 18.00 | 30.00 | 30.00 | 27.00 | a | 22.00 | a | 11.00 | ----- | z | -8.00 | ----- | z | |||||||
2018 | ----- | z | -24.00 | -9.00 | 13.00 | d | 26.00 | 23.00 | ----- | z | 27.00 | a | 21.00 | 11.00 | 1.00 | -16.00 | ----- | z | ||||||||
2019 | -25.00 | b | -29.00 | -21.00 | 9.00 | 9.00 | 27.00 | a | ----- | z | 27.00 | 19.00 | -8.00 | -9.00 | -6.00 | a | ----- | z | ||||||||
2020 | -6.00 | -18.00 | b | 5.00 | 5.00 | 19.00 | 26.00 | ----- | z | ----- | z | ----- | z | 3.00 | 1.00 | a | -1.00 | ----- | z | |||||||
2021 | -10.00 | -13.00 | ----- | z | 6.00 | ----- | z | 24.00 | 33.00 | 25.00 | 13.00 | 20.00 | 5.00 | -6.00 | a | ----- | z | |||||||||
2022 | -23.00 | -23.00 | -17.00 | -3.00 | ----- | z | 27.00 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | -20.84 | -18.03 | -7.39 | 8.21 | 15.23 | 25.33 | 29.83 | 26.87 | 17.79 | 7.14 | -5.81 | -18.34 | -27.89 | |||||||||||||
S.D. | 9.28 | 10.96 | 8.91 | 6.15 | 3.82 | 2.85 | 2.75 | 2.96 | 4.14 | 8.09 | 8.10 | 9.20 | 6.49 | |||||||||||||
SKEW | -0.02 | -0.43 | 0.02 | -0.95 | 0.24 | 0.44 | 0.60 | -0.67 | -0.66 | -0.89 | -0.15 | -0.17 | 0.09 | |||||||||||||
MAX | -3.00 | -2.00 | 11.00 | 16.00 | 26.00 | 33.00 | 38.00 | 31.00 | 26.00 | 20.00 | 8.00 | -1.00 | -16.00 | |||||||||||||
MIN | -38.00 | -41.00 | -26.00 | -6.00 | 7.00 | 20.00 | 24.00 | 19.00 | 6.00 | -13.00 | -23.00 | -38.00 | -38.00 | |||||||||||||
YRS | 31 | 30 | 31 | 33 | 30 | 33 | 29 | 31 | 29 | 29 | 31 | 32 | 9 |