YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 15.00 | -7.00 | -18.00 | -38.00 | b | ----- | z | |||
1942 | -32.00 | h | -38.00 | -39.00 | c | -20.00 | a | -5.00 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |
1943 | ----- | z | ----- | z | -50.00 | b | -45.00 | a | 15.00 | 29.00 | b | 29.00 | d | 32.00 | d | 18.00 | e | -3.00 | g | -15.00 | -34.00 | c | ----- | z | ||
1944 | -43.00 | c | -39.00 | -35.00 | e | -29.00 | b | -4.00 | 32.00 | 34.00 | 30.00 | 26.00 | e | -6.00 | b | -30.00 | e | -31.00 | d | ----- | z | |||||
1945 | -53.00 | -52.00 | b | -45.00 | -34.00 | b | -8.00 | 17.00 | 27.00 | h | 27.00 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||||
1946 | ----- | z | -42.00 | f | -41.00 | -29.00 | b | -6.00 | 17.00 | 30.00 | 31.00 | 5.00 | 3.00 | -17.00 | a | -37.00 | ----- | z | ||||||||
1947 | -42.00 | a | -52.00 | a | -39.00 | -21.00 | a | -4.00 | ----- | z | ----- | z | ----- | z | ----- | z | -9.00 | -20.00 | -29.00 | ----- | z | |||||
1948 | -41.00 | -35.00 | a | -40.00 | -23.00 | -15.00 | ----- | z | ----- | z | 30.00 | 9.00 | -14.00 | -42.00 | -47.00 | ----- | z | |||||||||
1949 | -48.00 | -54.00 | -33.00 | a | -32.00 | a | -12.00 | 25.00 | 30.00 | 33.00 | ----- | z | 6.00 | -22.00 | -40.00 | ----- | z | |||||||||
1950 | -29.00 | b | ----- | z | -38.00 | -29.00 | -1.00 | l | ----- | z | 37.00 | v | 32.00 | 21.00 | 1.00 | -14.00 | -39.00 | a | ----- | z | ||||||
1951 | -45.00 | -47.00 | -40.00 | -25.00 | 7.00 | 28.00 | 35.00 | 34.00 | 25.00 | -5.00 | -20.00 | -37.00 | -47.00 | |||||||||||||
1952 | -45.00 | -45.00 | -40.00 | -30.00 | -16.00 | j | ----- | z | ----- | z | ----- | z | 11.00 | e | -8.00 | -17.00 | -33.00 | ----- | z | |||||||
1953 | -41.00 | -48.00 | i | ----- | z | ----- | z | ----- | z | 30.00 | 29.00 | 28.00 | 23.00 | -19.00 | -23.00 | -39.00 | ----- | z | ||||||||
1954 | -44.00 | -44.00 | -39.00 | -24.00 | -0.00 | 28.00 | 28.00 | 37.00 | 23.00 | -0.00 | -26.00 | -36.00 | -44.00 | |||||||||||||
1955 | -39.00 | -48.00 | -42.00 | a | -35.00 | -5.00 | 24.00 | 32.00 | 32.00 | p | ----- | z | ----- | z | ----- | z | -51.00 | b | ----- | z | ||||||
1956 | -55.00 | -54.00 | -55.00 | a | -35.00 | 14.00 | 23.00 | 29.00 | 26.00 | 19.00 | -13.00 | b | -30.00 | c | -43.00 | -55.00 | f | |||||||||
1957 | -46.00 | -53.00 | -46.00 | -28.00 | -10.00 | 28.00 | m | ----- | z | ----- | z | -8.00 | q | -3.00 | -34.00 | -45.00 | ----- | z | ||||||||
1958 | -43.00 | -35.00 | -37.00 | ----- | 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 | ----- | 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 |
2014 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2015 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2016 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2017 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2018 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 27.00 | h | -5.00 | c | -26.00 | d | -31.00 | c | ----- | z |
2019 | -42.00 | d | -33.00 | c | -25.00 | h | -14.00 | h | 18.00 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | -24.00 | v | ----- | z |
2020 | ----- | z | -52.00 | c | -38.00 | -16.00 | -9.00 | 29.00 | 31.00 | 32.00 | 23.00 | 4.00 | b | -10.00 | -33.00 | ----- | z | |||||||||
2021 | -33.00 | a | -41.00 | g | -34.00 | -31.00 | b | -1.00 | 26.00 | 33.00 | b | 30.00 | 11.00 | -10.00 | -37.00 | d | -39.00 | a | -41.00 | q | ||||||
2022 | -39.00 | b | -50.00 | b | -34.00 | -27.00 | 10.00 | 26.00 | 32.00 | a | 31.00 | a | 23.00 | -4.00 | -20.00 | -25.00 | -50.00 | f | ||||||||
2023 | -30.00 | -35.00 | d | -32.00 | d | -33.00 | 8.00 | d | 23.00 | a | 37.00 | a | 27.00 | a | 27.00 | 2.00 | -8.00 | -22.00 | -35.00 | o | ||||||
2024 | -36.00 | -27.00 | -39.00 | j | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | -41.79 | -44.06 | -39.85 | -28.74 | -1.47 | 25.50 | 31.46 | 30.67 | 18.60 | -4.83 | -22.58 | -36.45 | -45.50 | |||||||||||||
S.D. | 6.73 | 8.57 | 5.71 | 6.57 | 9.12 | 4.47 | 2.70 | 2.92 | 6.84 | 6.76 | 8.99 | 7.10 | 2.12 | |||||||||||||
SKEW | 0.10 | 0.42 | -1.03 | -0.30 | 0.51 | -0.70 | 0.63 | 0.27 | -0.63 | -0.26 | -0.48 | 0.01 | 0.00 | |||||||||||||
MAX | -29.00 | -27.00 | -32.00 | -16.00 | 15.00 | 32.00 | 37.00 | 37.00 | 27.00 | 6.00 | -8.00 | -22.00 | -44.00 | |||||||||||||
MIN | -55.00 | -54.00 | -55.00 | -45.00 | -15.00 | 17.00 | 28.00 | 26.00 | 5.00 | -19.00 | -42.00 | -51.00 | -47.00 | |||||||||||||
YRS | 19 | 18 | 20 | 19 | 17 | 14 | 13 | 15 | 15 | 18 | 19 | 20 | 2 |