|
Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1938 | -7.4 | -6.8 | -3.5 | 1.7 | 6.7 | 9.0 | 14.9 | 19.3 | 14.0 | 7.3 | 1.0 | -6.8 | 4.1 |
1939 | -9.8 | -10.0 | -4.2 | 0.9 | 4.7 | 10.6 | 14.8 | 17.0 | 14.6 | 7.1 | 0.3 | -4.9 | 3.4 |
1940 | -8.4 | -8.8 | -3.2 | 0.4 | 5.0 | 8.3 | 14.2 | 16.5 | 11.9 | 6.8 | 0.5 | -3.5 | 3.3 |
1941 | -8.7 | -8.3 | -5.8 | 0.1 | 4.9 | 8.5 | 10.4 | 13.8 | 12.5 | 6.9 | 0.6 | -5.1 | 2.5 |
1942 | -10.0 | -10.9 | -3.6 | 1.0 | 4.7 | 8.6 | 14.3 | 15.9 | 13.1 | 7.3 | -0.2 | -4.8 | 3.0 |
1943 | -6.0 | -8.5 | -3.6 | 0.8 | 4.2 | 9.8 | 16.5 | 19.0 | 14.5 | 8.6 | -1.8 | -6.2 | 3.9 |
1944 | -10.3 | -11.7 | -4.7 | -0.9 | 5.1 | 11.2 | 16.5 | 18.6 | 13.9 | 7.2 | -1.3 | -7.9 | 3.0 |
1945 | -9.6 | -9.0 | -4.1 | 1.1 | 2.9 | 8.3 | 10.5 | 16.2 | 13.6 | 7.5 | 1.6 | -6.9 | 2.7 |
1946 | -8.7 | -8.8 | -6.5 | 1.9 | 4.4 | 11.5 | 15.7 | 19.1 | 14.1 | 7.7 | 0.7 | -4.5 | 3.9 |
1947 | -7.2 | -8.2 | -5.2 | 1.2 | 5.5 | 8.2 | 14.5 | 16.4 | 12.4 | 7.5 | 0.0 | -7.0 | 3.2 |
1948 | -5.0 | -6.9 | -3.1 | 2.8 | 7.9 | 9.8 | 13.8 | 19.2 | 13.1 | 8.1 | 1.6 | -3.2 | 4.8 |
1949 | -4.7 | -5.7 | -6.3 | -1.1 | 6.3 | 8.5 | 14.0 | 18.0 | 14.5 | 6.7 | 0.7 | -5.7 | 3.8 |
1950 | -7.9 | -7.2 | -4.3 | 0.9 | 6.3 | 11.1 | 16.4 | 19.3 | 13.7 | 5.9 | 0.5 | -4.9 | 4.2 |
1951 | -8.8 | -9.4 | -5.2 | 0.8 | 5.7 | 9.7 | 14.2 | 20.0 | 12.8 | 7.2 | 1.1 | -2.6 | 3.8 |
1952 | -7.9 | -9.3 | -5.6 | 1.1 | 5.2 | 10.0 | 14.1 | 17.1 | 14.1 | 7.7 | -2.0 | -9.6 | 2.9 |
1953 | -10.2 | -10.1 | -2.8 | 1.1 | 4.4 | 9.0 | 14.5 | 16.2 | 14.4 | 8.6 | -3.1 | -4.8 | 3.1 |
1954 | -9.1 | -6.3 | -5.1 | 1.9 | 4.5 | 7.5 | 11.3 | 14.8 | 14.5 | 6.8 | 1.0 | -4.1 | 3.1 |
1955 | -8.6 | -6.9 | -3.8 | 2.4 | 4.7 | 10.1 | 17.9 | 17.0 | 12.9 | 8.1 | 0.8 | -2.9 | 4.3 |
1956 | -8.0 | -6.8 | -4.9 | 2.2 | 7.7 | 8.4 | 11.7 | 14.3 | 14.4 | 8.9 | 0.8 | -4.4 | 3.7 |
1957 | -6.2 | -7.6 | -5.6 | 1.9 | 6.4 | 8.3 | 14.6 | 16.5 | 12.8 | 8.4 | 2.8 | -3.2 | 4.1 |
1958 | -7.4 | -7.5 | -5.3 | 1.5 | 5.6 | 10.2 | 15.0 | 16.3 | 13.9 | 7.6 | 2.2 | -2.8 | 4.1 |
1959 | -9.7 | -6.0 | -1.7 | 3.4 | 6.7 | 10.1 | 14.9 | 16.4 | 13.7 | 8.9 | 0.8 | -5.9 | 4.3 |
1960 | -9.2 | -8.0 | -4.0 | 0.8 | 4.8 | 8.3 | 13.6 | 18.2 | 15.6 | 6.3 | 0.9 | -6.0 | 3.4 |
1961 | -10.1 | -7.6 | -4.1 | 2.8 | 6.0 | 11.7 | 17.2 | 17.8 | 16.6 | 7.8 | 1.6 | -3.5 | 4.7 |
1962 | -6.2 | -7.9 | -5.3 | 3.8 | 7.0 | 10.4 | 14.6 | 15.4 | 14.0 | 7.5 | 0.0 | -3.8 | 4.1 |
1963 | -5.9 | -5.7 | -2.8 | 2.4 | 7.7 | 9.7 | 14.6 | 15.5 | 12.7 | 8.0 | 1.7 | -3.9 | 4.5 |
1964 | -6.8 | -10.1 | -4.5 | 0.4 | 6.2 | 9.3 | 12.7 | 15.1 | 11.8 | 6.7 | 1.2 | -4.5 | 3.1 |
1965 | -6.3 | -7.9 | -5.5 | 0.3 | 6.1 | 9.9 | 12.5 | 16.0 | 13.2 | 8.0 | -1.1 | -5.5 | 3.3 |
1966 | -7.4 | -8.7 | -3.7 | 0.2 | 4.9 | 9.3 | 12.9 | 15.3 | 12.3 | 9.1 | 1.2 | -6.7 | 3.2 |
1967 | -9.9 | -9.1 | -4.0 | 1.2 | 6.8 | 8.7 | 13.8 | 17.2 | 12.7 | 7.6 | -0.5 | -3.6 | 3.4 |
1968 | -6.1 | -7.2 | -1.0 | 2.1 | 6.1 | 11.7 | 15.0 | 16.0 | 13.2 | 6.2 | 2.9 | -3.5 | 4.6 |
1969 | -9.5 | -9.8 | -5.3 | 0.5 | 4.5 | 8.0 | 14.4 | 14.2 | 13.2 | 6.1 | -0.4 | -7.4 | 2.4 |
1970 | -8.9 | -9.2 | -8.4 | 1.5 | 7.0 | 10.2 | 14.9 | 16.5 | 13.9 | 7.6 | 1.4 | -5.3 | 3.4 |
1971 | -8.6 | -9.5 | -3.9 | 1.5 | 4.9 | 8.4 | 13.7 | 14.7 | 12.7 | 8.3 | 0.8 | -4.7 | 3.2 |
1972 | -8.1 | -7.4 | -3.2 | 2.5 | 5.9 | 10.3 | 14.1 | 17.2 | 13.0 | 8.4 | -0.4 | -3.8 | 4.0 |
1973 | -6.4 | -8.1 | -5.8 | 1.8 | 6.0 | 9.6 | 14.5 | 18.1 | 13.7 | 7.5 | 0.8 | -4.1 | 4.0 |
1974 | -4.0 | -7.0 | -4.8 | 1.7 | 5.5 | 9.3 | 13.9 | 16.3 | 13.6 | 7.2 | -0.7 | -7.7 | 3.6 |
1975 | -6.2 | -8.5 | -4.3 | 1.8 | 5.4 | 11.3 | 14.2 | 18.2 | 14.1 | 7.2 | 0.8 | -5.8 | 4.0 |
1976 | -6.4 | -5.9 | -3.7 | 1.8 | 6.0 | 9.5 | 14.7 | 15.4 | 13.0 | 7.5 | -0.9 | -3.7 | 3.9 |
1977 | -10.4 | -9.5 | -3.4 | 1.1 | 5.0 | 9.3 | 15.6 | 16.0 | 14.2 | 7.4 | 1.8 | -4.1 | 3.6 |
1978 | -9.2 | -11.9 | -4.9 | 1.9 | 6.3 | 10.7 | 18.0 | 18.7 | 14.3 | 6.8 | 0.8 | -4.5 | 3.9 |
1979 | -9.0 | -7.2 | -5.0 | 0.3 | 5.2 | 10.4 | 13.3 | 17.8 | 13.9 | 7.8 | -0.2 | -2.5 | 3.7 |
1980 | -7.7 | -9.5 | -4.8 | -0.5 | 5.0 | 10.1 | 13.4 | 14.0 | 13.5 | 7.2 | 1.8 | -2.3 | 3.4 |
1981 | -7.1 | -8.5 | -5.2 | 3.2 | 5.3 | 9.3 | 14.7 | 16.7 | 13.3 | 7.8 | -1.4 | -2.7 | 3.8 |
1982 | -7.6 | -8.1 | -3.0 | 1.4 | 6.3 | 9.1 | 14.5 | 18.1 | 14.5 | 7.8 | 1.4 | -3.1 | 4.3 |
1983 | -6.7 | -10.2 | -4.6 | 4.0 | 5.6 | 6.4 | 11.9 | 16.3 | 13.4 | 6.0 | 2.1 | -4.1 | 3.3 |
1984 | -6.7 | -8.5 | -5.3 | 0.5 | 5.3 | 12.6 | 16.8 | 17.6 | 13.6 | 6.5 | -0.7 | -5.7 | 3.8 |
1985 | -11.0 | -7.3 | -3.8 | 2.3 | 5.4 | 9.0 | 14.4 | 18.9 | 12.7 | 7.7 | 0.4 | -6.2 | 3.5 |
1986 | -9.7 | -9.2 | -5.1 | 2.3 | 5.8 | 8.3 | 12.3 | 17.5 | 13.8 | 5.8 | -0.5 | -4.2 | 3.1 |
1987 | -8.9 | -8.2 | -3.7 | 1.6 | 5.5 | 9.8 | 15.5 | 16.1 | 13.4 | 8.4 | -0.4 | -5.6 | 3.6 |
1988 | -7.1 | -8.4 | -3.8 | 1.9 | 5.0 | 10.0 | 11.3 | 18.0 | 13.4 | 7.8 | -0.5 | -3.9 | 3.6 |
1989 | -5.1 | -4.8 | -1.0 | 1.6 | 5.0 | 8.1 | 15.9 | 17.9 | 13.9 | 7.8 | 2.7 | -3.7 | 4.9 |
1990 | -7.7 | -4.8 | -1.3 | 3.0 | 6.7 | 11.1 | 16.1 | 17.9 | 14.2 | 10.2 | 3.0 | -1.0 | 5.6 |
1991 | -3.4 | -6.1 | -4.2 | 2.3 | 7.5 | 11.9 | 14.0 | 16.9 | 13.9 | 9.0 | 0.5 | -4.6 | 4.8 |
1992 | -5.6 | -6.1 ) | -3.0 | 1.5 | 5.4 | 9.2 | 15.4 | 15.8 | 12.3 | 8.0 | 0.6 | -3.0 | 4.2 |
1993 | -4.7 | -5.4 | -2.8 | 0.7 | 6.0 | 8.5 | 13.2 | 15.5 | 13.7 | 8.1 | 1.2 | -4.1 | 4.2 |
1994 | -8.2 | -4.5 | -3.6 | 2.3 | 7.0 | 10.0 | 15.2 | 19.4 | 15.3 | 8.7 | 1.3 | -5.0 | 4.8 |
1995 | -6.1 | -6.2 | -3.7 | 2.0 | 8.2 | 10.2 | 16.2 | 17.3 | 13.4 | 9.6 | 2.3 | -2.4 | 5.1 |
1996 | -7.0 | -6.8 | -3.1 | 1.0 | 4.3 | 9.7 | 13.9 | 16.0 | 14.2 | 7.2 | -0.3 | -4.6 | 3.7 |
1997 | -4.8 | -5.4 | -4.5 | 1.7 | 4.7 | 9.8 | 15.3 | 15.1 | 13.2 | 7.2 | 3.8 | -3.0 ) | 4.4 |
1998 | -9.2 | -8.1 | -2.4 | 2.2 | 7.1 | 10.0 | 13.2 | 16.2 | 14.4 | 9.7 | -0.4 | -4.5 | 4.0 |
1999 | -6.3 | -8.4 | -5.1 | 0.8 | 5.9 | 11.6 | 14.1 | 18.8 | 15.7 | 8.2 | 1.2 | -4.1 | 4.4 |
2000 | -6.1 | -7.9 | -4.4 | 1.2 | 6.5 | 10.5 | 16.6 | 19.0 | 15.2 | 7.9 | -1.1 | -6.6 | 4.2 |
2001 | -8.3 | -10.4 | -4.6 | 1.9 | 5.8 | 10.5 | 15.2 | 16.2 | 12.5 | 8.2 | 1.4 | -6.1 | 3.5 |
2002 | -5.9 | -3.7 | -2.0 | 3.9 | 7.7 | 10.1 | 13.4 | 14.7 | 13.7 | 8.2 | 0.3 | -6.2 | 4.5 |
2003 | -7.0 | -8.2 | -3.0 | 2.4 | 6.9 | 11.1 | 11.9 | 16.2 | 13.6 | 8.6 | 1.9 | -3.6 | 4.2 |
2004 | -5.8 | -5.5 | -3.2 | 1.6 | 7.6 | 11.9 | 14.6 | 17.0 | 14.9 | 8.8 | 3.2 | -4.4 | 5.1 |
2005 | -6.6 | -8.1 | -3.3 | 1.5 | 4.3 | 11.7 | 14.4 | 18.5 | 14.8 | 9.6 | 2.3 | -4.3 | 4.6 |
2006 | -7.7 | -7.3 | -3.1 | 0.1 | 6.3 | 9.4 | 16.0 | 19.5 | 14.8 | 7.3 | 1.8 | -3.6 | 4.5 |
2007 | -6.0 | -5.9 | -3.1 | 0.6 | 5.0 | 11.2 | 14.2 | 17.8 | 14.5 | 7.5 | 0.2 | -3.5 | 4.4 |
2008 | -8.1 | -7.7 | -1.7 | 2.4 | 5.3 | 9.4 | 15.6 | 16.8 | 14.7 | 8.3 | 1.3 | -3.2 | 4.4 |
2009 | -4.4 | -6.7 | -2.4 | 1.6 | 6.6 | 10.1 | 12.6 | 16.3 | 13.7 | 8.3 | 0.8 | -4.2 | 4.4 |
2010 | -6.1 | -7.5 | -3.7 | 1.0 | 4.8 | 12.3 | 16.2 | 20.1 | 15.1 | 8.3 | 2.6 | -3.4 | 5.0 |
2011 | -6.8 | -4.9 | -3.2 | 1.9 | 4.0 | 10.5 | 15.1 | 19.0 | 15.4 | 9.2 | 2.4 | -4.5 | 4.8 |
2012 | -7.4 | -8.7 | -5.0 | 1.6 | 6.4 | 9.7 | 14.6 | 17.7 | 17.0 | 9.0 | 1.8 | -5.2 | 4.3 |
2013 | -7.4 | -7.6 | -3.9 | 2.2 | 4.8 | 11.0 | 16.5 | 18.1 | 14.9 | 8.7 | 2.7 | -2.0 | 4.8 |
2014 | -7.7 | -6.5 | -3.5 | 1.6 | 5.6 | 11.1 | 16.7 | 17.6 | 13.7 | 7.8 | 1.7 | -4.3 | 4.5 |
2015 | -5.0 | -4.0 | 0.1 | 3.1 | 7.1 | 9.5 | 15.3 | 16.7 | 14.5 | 7.2 | 1.5 | -2.5 | 5.3 |
2016 | -6.8 | -7.2 | -2.2 | 1.9 | 8.1 | 9.8 | 14.9 | 19.2 | 13.8 | 7.0 | -2.0 | -4.9 | 4.3 |
2017 | -6.4 | -5.6 | -2.6 | 2.5 | 7.3 | 9.4 | 16.0 | 16.7 | 14.0 | 6.7 | -0.1 | -5.0 | 4.4 |
2018 | -5.6 | -7.6 | -2.5 | 2.6 | 6.9 | 9.9 | 14.6 | 16.0 | 14.7 | 10.0 | 2.6 | -4.4 | 4.8 |
2019 | -6.3 | -7.1 | -2.6 | 2.4 | 9.4 | 11.0 | 15.8 | 16.4 | 14.8 | 9.2 | -0.3 | -4.9 | 4.8 |
2020 | -6.1 | -6.5 | -1.4 | 1.4 | 7.2 | 11.7 | 15.5 | 16.9 | 16.3 | 9.1 | 2.4 | -4.8 | 5.1 |
2021 | -8.3 | -5.9 | -1.1 | 2.9 | 6.3 | 11.3 | 18.4 | 16.9 | 14.5 | 8.2 | 3.7 | -3.5 | 5.3 |
2022 | -6.1 | -5.3 | -1.0 | 3.4 | 7.6 | 9.5 | 16.2 | 18.7 | 14.8 | 8.4 | 2.6 | -4.5 | 5.4 |
2023 | -8.1 | -7.5 | 0.3 | 3.6 | 7.6 | 13.0 | 17.8 | 19.5 | 16.9 | 10.1 | 2.2 | -4.6 | 5.9 |
2024 | -5.6 | -6.7 | -2.9 | 4.4 | 6.4 | 11.5 | 17.0 | 16.4 ] | 3.4 ] |
Remarks
The red lines, if any, indicate data inhomogeneity caused by changes in instrumentation, observation methods and/or site location.