Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1957 | -4.8(100) | -8.7(100) | -14.5(100) | -19.4(100) | -21.5(100) | -23.3(100) | -26.7(100) | -32.0(100) | -23.6(100) | -20.1(100) | -10.8(100) | -4.5(100) |
1958 | -4.8(100) | -7.6(100) | -15.6(100) | -24.0(100) | -30.2(100) | -24.8(100) | -28.0(100) | -28.4(100) | -22.8(100) | -17.3(100) | -10.2(100) | -7.0(100) |
1959 | -3.6(100) | -8.2(100) | -18.3(100) | -20.4(100) | -18.3(100) | -30.5(100) | -28.4(100) | -27.9(100) | -31.2(100) | -18.6(100) | -11.3(100) | -4.4(100) |
1960 | -5.0(100) | -11.8(100) | -17.9(100) | -18.5(100) | -27.1(100) | -31.0(100) | -26.1(100) | -24.5(100) | -28.7(100) | -18.0(100) | -11.6(100) | -4.7(100) |
1961 | -5.2(100) | -11.1(100) | -16.2(100) | -23.5(100) | -18.8(100) | -32.3(100) | -32.9(100) | -31.9(100) | -27.5(100) | -13.6(100) | -10.2(100) | -5.0(100) |
1962 | -4.7(100) | -11.2(100) | -15.2(100) | -18.8(100) | -28.4(100) | -26.8(100) | -28.8(100) | -30.8(100) | -26.5(100) | -23.1(100) | -13.7(100) | -5.8(100) |
1963 | -3.8(100) | -10.4(100) | -13.8(100) | -22.3(100) | -27.1(100) | -26.6(100) | -25.4(100) | -19.8(100) | -24.9(100) | -21.3(100) | -12.0(100) | -5.0(100) |
1964 | -4.8(100) | -9.2(100) | -15.5(100) | -25.5(100) | -32.2(100) | -22.1(100) | -29.7(100) | -33.2(100) | -32.8(100) | -21.6(100) | -11.4(100) | -5.1(100) |
1965 | -4.5(100) | -9.8(100) | -16.6(100) | -22.4(100) | -26.6(100) | -27.7(100) | -27.3(100) | -29.7(100) | -24.9(100) | -19.1(100) | -11.3(100) | -5.4(100) |
1966 | -4.6(100) | -8.9(100) | -10.1(100) | -16.4(100) | -24.3(100) | -25.3(100) | -26.9(100) | -29.4(100) | -26.1(100) | -20.2(100) | -12.5(100) | -4.4(100) |
1967 | -2.0(100) | -7.9(100) | -19.8(100) | -21.5(100) | -24.1(100) | -30.4(100) | -29.0(100) | -27.7(100) | -27.3(100) | -18.9(100) | -10.7(100) | -3.9(100) |
1968 | -5.6(100) | -9.8(100) | -13.6(100) | -23.3(100) | -21.8(100) | -21.2(100) | -32.5(100) | -29.7(100) | -28.4(100) | -17.9(100) | -9.9(100) | -5.6(100) |
1969 | -3.7(100) | -8.1(100) | -16.1(100) | -14.7(100) | -20.9(100) | -20.7(100) | -30.1(100) | -31.1(100) | -22.1(100) | -12.8(100) | -9.3(100) | -3.5(100) |
1970 | -4.9(100) | -10.6(100) | -19.3(100) | -21.9(100) | -26.1(100) | -30.6(100) | -31.7(100) | -35.0(100) | -16.8(100) | -17.1(100) | -10.3(100) | -2.7(100) |
1971 | -3.0(100) | -9.3(100) | -18.3(100) | -18.3(100) | -25.5(100) | -32.1(100) | -33.0(100) | -25.1(100) | -26.8(100) | -18.4(100) | -11.9(100) | -3.7(100) |
1972 | -4.0(100) | -8.5(100) | -16.0(100) | -20.7(100) | -24.6(100) | -28.3(100) | -33.6(100) | -29.3(100) | -27.3(100) | -22.0(100) | -10.3(100) | -4.6(100) |
1973 | -3.4(100) | -10.5(100) | -15.8(100) | -18.9(100) | -24.5(100) | -31.8(100) | -30.2(100) | -37.2(100) | -25.9(100) | -16.7(100) | -9.2(100) | -5.6(100) |
1974 | -4.1(100) | -11.4(100) | -16.7(100) | -21.5(100) | -22.4(100) | -30.3(100) | -31.6(100) | -22.1(100) | -22.7(100) | -19.7(100) | -10.7(100) | -4.1(100) |
1975 | -3.5(100) | -8.7(100) | -11.6(100) | -20.8(100) | -18.4(100) | -23.0(100) | -23.8(100) | -30.2(100) | -26.7(100) | -13.5(100) | -9.5(100) | -3.4(100) |
1976 | -3.8(100) | -8.5(100) | -18.2(100) | -20.5(100) | -24.8(100) | -26.4(100) | -27.0(100) | -24.7(100) | -22.3(100) | -18.0(100) | -9.4(100) | -3.7(100) |
1977 | -3.0(100) | -9.2(100) | -16.4(100) | -15.6(100) | -16.8(100) | -21.6(100) | -30.0(100) | -26.2(100) | -27.6(100) | -18.7(100) | -10.9(100) | -5.9(100) |
1978 | -5.1(100) | -7.8(100) | -15.4(100) | -15.6(100) | -20.7(100) | -24.7(100) | -29.2(100) | -25.3(100) | -26.6(100) | -16.8(100) | -11.9(100) | -4.5(100) |
1979 | -3.2(100) | -10.0(100) | -18.6(100) | -16.7(100) | -26.3(100) | -23.9(100) | -33.6(100) | -29.4(100) | -26.0(100) | -18.8(100) | -11.0(100) | -3.8(100) |
1980 | -4.9(100) | -8.5(100) | -14.7(100) | -20.0(100) | -27.5(100) | -25.5(100) | -31.4(100) | -28.2(100) | -26.0(100) | -21.8(100) | -8.4(100) | -5.1(100) |
1981 | -3.7(100) | -8.4(100) | -15.7(100) | -16.8(100) | -25.6(100) | -25.8(100) | -24.3(100) | -26.4(100) | -26.2(100) | -18.4(100) | -9.9(100) | -4.4(100) |
1982 | -3.7(100) | -7.8(100) | -20.6(100) | -19.2(100) | -25.6(100) | -26.5(100) | -24.4(100) | -28.7(100) | -21.6(100) | -16.6(100) | -8.8(100) | -3.8(100) |
1983 | -2.6( 32) | - | - | - | - | - | - | - | - | - | - | - |
1984 | - | - | - | - | - | - | - | - | - | - | - | - |
1985 | - | - | - | - | - | - | - | - | - | - | - | - |
1986 | - | - | - | - | - | - | - | - | - | - | - | - |
1987 | - | - | - | - | - | - | - | - | - | - | - | - |
1988 | - | - | - | - | - | - | - | - | - | - | - | - |
1989 | - | - | - | - | - | - | - | - | - | - | - | - |
1990 | - | - | - | - | - | - | - | - | - | - | - | - |
1991 | - | - | - | - | - | - | - | - | - | - | - | - |
1992 | - | - | - | - | - | - | - | - | - | - | - | - |
1993 | - | - | - | - | - | - | - | - | - | - | - | - |
1994 | - | - | - | - | - | - | - | - | - | - | - | - |
1995 | - | - | - | - | - | - | - | - | - | - | - | - |
1996 | - | - | - | - | - | - | - | - | - | - | - | - |
1997 | - | - | - | - | - | - | - | - | - | - | - | - |
1998 | - | - | - | - | - | - | - | - | - | - | - | - |
1999 | - | - | - | - | - | - | - | - | - | - | - | - |
2000 | - | - | - | - | - | - | - | - | - | - | - | - |
2001 | - | - | - | - | - | - | - | - | - | - | - | - |
2002 | - | - | - | - | - | - | - | - | - | - | - | - |
2003 | - | - | - | - | - | - | - | - | - | - | - | - |
2004 | - | - | - | - | - | - | - | - | - | - | - | - |
2005 | - | - | - | - | - | - | - | - | - | - | - | - |
2006 | - | - | - | - | - | - | - | - | - | - | - | - |
2007 | - | - | - | - | - | - | - | - | - | - | - | - |
2008 | - | - | - | - | - | - | - | - | - | - | - | - |
2009 | - | - | - | - | - | - | - | - | - | - | - | - |
2010 | - | - | - | - | - | - | - | - | - | - | - | - |
2011 | - | - | - | - | - | - | - | - | - | - | - | - |
2012 | - | - | - | - | - | - | - | - | - | - | - | - |
2013 | - | - | - | - | - | - | - | - | - | - | - | - |
2014 | - | - | - | - | - | - | - | - | - | - | - | - |
2015 | - | - | - | - | - | - | - | - | - | - | - | - |
2016 | - | - | - | - | - | - | - | - | - | - | - | - |
2017 | - | - | - | - | - | - | - | - | - | - | - | - |
2018 | - | - | - | - | - | - | - | - | - | - | - | - |
2019 | - | - | - | - | - | - | - | - | - | - | - | - |
2020 | - | - | - | - | - | - | - | - | - | - | - | - |
2021 | - | - | - | - | - | - | - | - | - | - | - | - |
2022 | - | - | - | - | - | - | - | - | - | - | - | - |
2023 | - | - | - | - | - | - | - | - | - | - | - | - |
2024 | - | - | - | - | - | - | - | - | - | - | - | - |