KESKILAMPOTILAT MONTHLY MEAN TEMPERATURES IN TURKU C
YEAR 1 2 3 4 5 6 7 8 9 10 11 12 MEAN S.D.
1956 -7.9 -12.4 -3.2 0.6 8.5 14.9 15.6 12.7 9.4 4.8 -4.2 -2.2 3.1 9.29
1957 -2.0 -3.1 -5.6 1.8 8.2 12.1 17.1 14.9 9.3 6.0 1.1 -1.8 4.9 7.53
1958 -7.6 -9.7 -7.2 1.2 7.7 13.2 15.8 14.5 10.9 6.7 3.7 -5.1 3.7 9.25
1959 -4.7 -1.9 0.4 4.6 9.4 14.7 18.3 17.1 9.3 5.2 1.7 -4.4 5.9 8.04
1960 -8.7 -7.9 -4.3 2.3 10.8 15.6 17.4 15.0 10.4 3.8 0.1 0.1 4.6 9.17
1961 -3.9 0.0 0.6 3.1 9.7 16.5 15.3 13.9 10.3 9.3 2.4 -4.7 6.1 7.40
1962 -3.7 -4.5 -7.2 3.9 8.1 11.9 14.4 12.9 9.5 7.0 1.2 -5.3 4.1 7.73
1963 -9.0 -10.5 -7.7 2.5 12.6 14.3 16.9 16.3 12.7 6.1 0.1 -3.2 4.3 10.29
1964 -2.3 -8.5 -4.6 2.5 9.3 13.9 15.9 14.6 10.2 7.0 0.3 -1.5 4.8 8.19
1965 -3.0 -6.8 -3.5 3.7 6.9 14.6 14.2 14.0 12.6 6.2 -4.2 -4.6 4.2 8.35
1966 -11.7 -13.4 -2.8 0.2 9.3 16.7 17.8 14.5 9.2 5.3 2.3 -3.3 3.7 10.38
1967 -10.1 -4.1 0.6 3.1 9.1 13.3 16.6 15.4 11.9 8.4 3.8 -9.2 5.0 9.17
1968 -12.6 -5.1 -1.1 4.4 7.2 16.1 15.5 16.0 10.7 2.7 -1.0 -1.5 4.3 9.14
1969 -7.6 -8.9 -6.0 3.4 8.8 16.0 16.9 17.2 9.9 6.0 0.1 -7.3 4.1 9.96
1970 -9.4 -12.7 -1.9 1.5 9.7 17.0 16.1 15.4 10.1 4.8 -0.8 -1.6 4.1 9.87
1971 -1.7 -4.8 -4.7 2.4 10.4 14.0 17.0 15.6 9.2 5.1 -0.9 -1.2 5.1 7.98
1972 -7.0 -3.6 -2.5 2.3 9.6 16.2 19.5 16.3 10.3 5.1 1.2 2.5 5.9 8.57
1973 -0.9 -3.4 0.1 2.7 9.8 16.3 19.5 15.1 7.6 2.8 -2.4 -6.2 5.1 8.48
1974 -1.6 -0.2 -1.1 3.2 8.0 14.5 15.2 14.9 12.4 4.9 2.5 1.2 6.2 6.55
1975 -0.6 -2.0 -0.1 3.7 11.5 13.6 17.7 16.5 13.1 5.5 2.2 -0.7 6.8 7.32
1976 -9.0 -5.1 -5.0 2.0 10.9 13.2 15.8 15.8 8.1 2.5 1.0 -4.6 3.8 8.79
1977 -5.1 -8.5 -1.6 1.4 9.1 14.7 14.2 14.7 8.8 5.9 1.7 -2.7 4.4 8.05
1978 -4.5 -10.6 -3.2 1.5 10.3 14.4 15.3 13.9 8.7 4.5 2.8 -11.6 3.5 9.45
1979 -8.2 -8.7 -1.2 2.1 10.1 15.9 14.9 15.8 10.2 4.4 1.9 -4.2 4.5 8.98
1980 -7.4 -8.4 -5.2 5.3 8.1 17.6 17.4 15.1 11.7 5.2 -2.0 -2.3 4.6 9.57
1981 -4.0 -5.5 -5.3 2.0 11.7 13.4 16.9 14.3 10.2 6.3 0.5 -6.1 4.6 8.64
1982 -9.4 -5.2 0.4 2.6 8.7 12.1 17.3 16.9 10.8 5.2 4.3 0.2 5.4 8.27
1983 -0.9 -7.2 -2.3 5.2 11.2 13.9 17.4 15.9 11.8 6.5 -1.2 -2.2 5.7 8.32
1984 -4.3 -4.4 -3.8 5.0 13.2 14.4 15.4 15.4 10.0 7.6 1.7 -1.0 5.8 7.96
1985 -14.8 -14.7 -1.9 1.1 9.2 14.2 16.3 16.4 10.0 7.2 -1.2 -5.9 3.0 11.05
1986 -7.3 -11.1 -0.8 2.4 10.8 16.8 16.8 13.6 7.6 6.4 4.5 -6.7 4.5 9.44
1987 -16.8 -6.6 -5.8 2.9 7.8 12.2 15.7 12.2 9.3 7.5 0.6 -3.2 3.0 9.63
1988 -1.8 -3.0 -2.7 1.9 11.7 17.4 19.6 14.7 12.0 5.3 -2.3 -5.3 5.7 8.99
1989 0.5 1.0 1.6 5.5 10.7 16.0 17.2 14.9 12.1 5.8 1.1 -4.4 6.9 7.16
1990 -2.4 1.6 2.1 6.3 10.0 15.0 16.3 16.3 8.9 5.7 -0.5 -0.2 6.6 6.74
1991 -2.2 -5.9 0.0 4.0 7.7 12.1 17.7 17.4 10.3 6.2 3.5 -0.3 5.9 7.51
1992 -0.7 -1.5 1.3 1.9 11.8 16.8 16.7 15.0 11.9 0.6 -0.5 0.8 6.2 7.50
1993 -1.1 -2.6 -0.1 4.1 14.0 12.0 16.9 13.8 7.1 4.3 -2.5 -2.4 5.3 7.30
1994 -3.7 -12.8 -2.4 5.3 8.6 12.5 20.0 16.1 10.9 5.2 0.1 0.9 5.1 9.25
1995 -2.6 -0.3 0.3 3.6 9.1 17.3 16.6 16.2 11.3 8.4 -1.4 -6.3 6.1 8.24
1996 -5.1 -9.9 -3.3 3.3 9.1 13.3 14.7 18.1 9.4 7.3 2.9 -4.9 4.6 8.91
1997 -3.4 -3.3 -0.4 1.7 7.9 16.7 18.9 19.0 11.0 3.1 0.3 -2.3 5.8 8.65
1998 -1.7 -3.1 -3.1 3.8 10.0 13.8 15.9 13.8 11.6 5.8 -2.9 -2.3 5.2 7.61
1999 -5.4 -6.5 -1.1 5.5 8.5 17.4 18.6 15.7 13.3 6.7 2.3 -2.1 6.1 8.84
2000 -2.4 -2.0 -1.0 6.2 10.4 13.6 16.2 15.1 10.0 8.9 4.6 1.4 6.8 6.67
2001 -1.4 -7.8 -3.1 5.2 9.2 14.3 19.7 16.4 11.9 8.4 0.2 -6.2 5.6 9.17
2002 -3.4 -0.9 0.2 5.7 11.9 16.3 18.8 19.5 11.1 0.6 -2.8 -7.6 5.8 9.41
2003 -9.1 -6.1 -0.6 2.7 9.5 13.7 20.8 16.3 12.0 3.5 2.8 -0.6 5.5 9.14
2004 -6.1 -3.8 -0.9 5.6 10.1 12.9 16.2 16.9 12.2 5.8 -0.1 0.2 5.8 7.90
2005 -1.1 -4.4 -5.5 4.6 9.3 13.8 18.8 16.0 12.2 7.4 3.4 -3.7 6.0 8.37
2006 -4.0 -7.0 -6.0 3.5 10.4 14.9 18.1 18.2 13.8 7.6 2.6 3.6 6.4 9.01
2007 -1.6 -8.0 2.6 5.0 10.9 16.3 17.2 17.6 11.5 7.7 1.4 2.3 7.0 8.06
2008 0.4 1.0 0.2 6.3 10.9 15.1 17.8 15.3 10.1 8.4 2.8 1.1 7.5 6.43
2009 -3.6 -4.2 -1.1 5.1 11.1 14.1 17.1 16.6 13.2 4.0 3.6 -4.3 6.0 8.22
2010 -9.9 -8.0 -2.0 4.4 11.8 14.6 21.4 17.8 11.6 5.7 -1.4 -8.7 4.8 10.81
2011 -4.3 -9.5 -1.0 5.3 10.2 17.5 20.5 17.1 13.3 8.1 5.4 2.8 7.2 9.21
2012 -4.3 -6.0 1.1 4.5 11.0 13.3 17.6 16.2 12.0 6.0 4.1 -6.2 5.8 8.43
2013 -5.0 -2.0 -5.7 2.7 13.4 17.2 17.7 17.3 12.1 7.0 4.3 2.3 6.8 8.67
2014 -6.3 0.6 2.4 5.6 10.5 13.8 20.6 18.0 12.7 7.3 3.2 0.1 7.4 7.97
2015 -0.4 0.7 2.2 5.2 9.3 13.3 16.3 17.2 12.7 5.5 4.9 3.2 7.6 6.09
2016 -8.4 -0.2 0.8 4.7 13.1 15.7 18.1 16.2 12.9 5.0 -0.1 0.0 6.5 8.47
2017 -2.1 -2.2 1.2 3.0 9.6 13.9 16.5 16.2 11.9 5.5 3.6 1.3 6.6 6.84
2018 -1.8 -7.1 -3.9 4.9 15.2 15.3 21.4 18.3 13.8 7.1 3.9 -0.8 7.2 9.48
2019 -4.4 0.2 0.2 7.0 10.8 17.6 17.8 17.2 11.7 5.7 2.7 2.3 7.4 7.59
2020 3.0 1.2 2.1 4.8 9.0 18.9 16.3 17.5 13.5 8.8 5.7 2.1 8.6 6.49
2021 -3.7 -5.8 0.5 4.7 10.4 19.1 21.2 16.0 10.3 8.6 2.0 -5.3 6.6 9.31
2022 -1.9 -1.6 1.0 3.9 9.9 17.5 17.9 18.7 10.1 8.7 3.2 -2.6 7.1 7.94
2023 -0.6 -1.2 -1.5 5.6 10.5 17.1 17.5 17.4 15.3 4.8 0.0 -4.2 6.8 8.42
2024 -7.1 -2.2 0.9 3.7 14.5 16.9 18.9 18.0 14.2 8.6 3.9 0.0 7.6 8.84
MEAN -4.8 -5.2 -1.8 3.7 10.2 15.1 17.4 16.0 11.1 6.0 1.3 -2.5 5.6
S.D. 3.80 4.03 2.65 1.58 1.71 1.80 1.76 1.54 1.70 1.86 2.37 3.31 1.26