KESKILAMPOTILAT MONTHLY MEAN TEMPERATURES AT KEVO C YEAR 1 2 3 4 5 6 7 8 9 10 11 12 MEAN S.D. 1962 -19.0 -13.0 -16.5 -2.0 1.9 8.1 9.8 8.6 5.5 -1.2 -3.5 -15.9 -3.2 10.57 1963 -13.7 -16.9 -12.9 -2.6 8.6 8.0 10.9 10.5 8.1 1.4 -8.3 -13.8 -1.8 10.90 1964 -6.6 -15.7 -6.8 -4.3 3.5 9.0 13.3 9.7 4.6 2.4 -8.4 -11.5 -0.9 9.24 1965 -14.9 -12.4 -11.8 -2.4 0.5 8.6 9.6 9.2 6.3 -1.4 -12.1 -17.7 -3.3 10.23 1966 -18.5 -23.7 -16.7 -5.2 1.3 10.5 13.7 9.3 2.7 -4.3 -4.1 -11.0 -3.9 12.00 1967 -20.0 -11.4 -4.8 -1.8 3.5 9.6 12.8 11.8 7.5 -1.1 -1.8 -18.4 -1.2 11.07 1968 -18.3 -14.5 -10.1 -4.2 0.1 8.0 9.1 9.1 3.5 -7.6 -5.5 -6.7 -3.1 9.17 1969 -14.7 -17.6 -11.4 -4.2 1.5 8.5 12.2 11.1 4.9 0.9 -8.6 -12.4 -2.5 10.44 1970 -15.8 -23.9 -7.9 -7.1 4.0 12.5 14.7 12.3 5.6 0.5 -9.3 -9.6 -2.0 12.20 1971 -15.6 -18.8 -13.2 -4.3 2.7 8.9 11.9 10.7 4.5 -2.3 -15.1 -9.5 -3.4 11.05 1972 -7.9 -11.9 -5.9 -3.1 3.0 14.1 16.2 12.2 5.4 0.1 -12.0 -6.0 0.4 9.89 1973 -8.5 -14.4 -7.7 -3.1 2.9 11.0 17.1 9.7 2.8 -5.6 -11.1 -18.3 -2.1 10.91 1974 -9.8 -9.3 -4.0 -1.8 2.9 11.4 15.2 11.1 7.6 -0.9 -7.8 -6.8 0.7 8.82 1975 -15.4 -10.7 -4.0 -2.9 4.0 7.3 10.8 8.6 6.1 -1.1 -5.1 -12.8 -1.3 8.77 1976 -21.7 -11.4 -9.3 -2.3 5.0 7.8 12.4 10.7 3.2 -3.0 -9.6 -12.2 -2.6 10.58 1977 -16.0 -14.4 -9.8 -4.2 2.5 8.1 12.6 10.4 3.9 -2.9 -5.3 -11.2 -2.2 9.71 1978 -18.4 -14.3 -10.2 -4.3 3.6 9.2 11.5 9.5 4.8 -1.8 -9.1 -17.6 -3.1 10.83 1979 -20.0 -14.6 -8.7 -3.9 3.3 10.2 14.4 11.3 6.2 -2.8 -7.5 -9.4 -1.8 10.90 1980 -15.9 -16.7 -11.7 -0.7 2.8 11.3 11.9 10.9 6.2 -2.5 -13.1 -17.1 -2.9 11.58 1981 -19.1 -16.0 -15.6 -3.7 2.5 6.8 13.0 9.8 5.0 -0.1 -7.3 -18.8 -3.7 11.56 1982 -15.8 -8.9 -8.0 -2.8 2.9 5.3 13.2 9.7 4.7 -1.6 -7.2 -10.5 -1.6 8.86 1983 -13.9 -11.2 -6.4 -0.5 3.3 9.7 13.2 9.1 7.6 -0.8 -14.6 -19.9 -2.1 11.04 1984 -16.9 -5.9 -9.8 -1.4 7.0 10.2 11.3 9.7 4.3 -2.1 -10.6 -7.7 -1.0 9.42 1985 -21.6 -22.8 -7.8 -5.1 1.5 9.1 14.2 11.3 6.0 -0.3 -8.4 -20.3 -3.7 12.95 1986 -18.5 -14.1 -5.8 -4.3 4.1 12.2 12.3 9.1 2.8 1.2 -4.8 -19.9 -2.2 11.15 1987 -18.2 -16.3 -11.9 -4.0 2.7 7.9 10.8 8.1 5.6 4.7 -8.9 -17.4 -3.1 10.99 1988 -14.4 -15.2 -10.5 -5.5 3.3 10.9 14.7 10.6 6.6 -0.8 -12.6 -16.7 -2.5 11.47 1989 -10.1 -9.2 -4.6 1.5 5.5 11.9 12.2 11.0 5.7 -1.6 -5.1 -14.1 0.3 9.10 1990 -16.3 -3.7 -6.6 -1.0 3.0 10.2 13.2 11.3 5.5 0.2 -8.0 -5.3 0.3 8.85 1991 -10.4 -12.4 -9.8 -1.9 3.0 9.9 12.1 11.1 4.0 -0.5 -7.2 -7.5 -0.8 8.82 1992 -8.8 -7.3 -4.6 -4.7 5.6 11.2 10.7 9.0 7.9 -8.4 -10.9 -6.2 -0.6 8.60 1993 -10.6 -8.8 -8.4 -3.3 3.1 6.3 13.6 10.9 2.5 -3.2 -5.6 -12.8 -1.4 8.61 1994 -19.4 -10.6 -6.9 0.4 3.0 8.9 13.4 11.6 4.8 -1.8 -9.2 -7.0 -1.1 9.94 1995 -11.3 -9.0 -4.2 -3.9 2.6 10.4 11.2 10.1 5.3 -3.1 -12.8 -15.5 -1.7 9.50 1996 -8.7 -13.8 -7.0 -4.5 0.7 8.5 11.8 12.3 5.3 1.0 -8.6 -14.4 -1.5 9.46 1997 -13.7 -12.5 -6.9 -6.6 2.8 9.1 13.8 13.2 7.8 -0.5 -9.6 -10.4 -1.2 10.17 1998 -12.8 -22.2 -11.8 -5.6 3.0 7.8 14.2 10.1 5.1 -0.2 -14.2 -12.4 -3.3 11.51 1999 -20.5 -15.4 -7.9 -1.9 1.3 12.0 13.3 8.5 7.8 1.7 -3.6 -16.8 -1.8 11.44 2000 -12.2 -11.8 -6.9 -2.6 4.2 9.3 14.0 10.9 6.7 3.8 -2.8 -12.8 -0.1 9.50 2001 -8.7 -15.9 -14.3 -3.5 3.1 12.0 13.1 10.5 8.0 -1.2 -9.3 -11.4 -1.5 10.61 2002 -13.6 -11.8 -8.1 0.5 5.7 11.2 14.0 11.5 4.9 -1.6 -12.9 -16.0 -1.4 10.89 2003 -22.1 -6.2 -4.2 -1.5 5.4 9.1 16.1 11.3 5.5 -0.5 -4.8 -12.5 -0.4 10.68 2004 -12.1 -15.1 -4.9 -1.1 4.5 9.3 17.2 11.8 6.6 0.3 -7.9 -6.4 0.2 9.95 2005 -9.7 -9.5 -10.4 -0.5 3.1 11.3 14.2 11.9 5.2 0.9 -3.9 -13.0 -0.1 9.47 2006 -11.0 -13.1 -11.9 0.7 5.6 11.4 12.3 12.4 6.0 -2.5 -7.0 -6.4 -0.3 9.69 2007 -15.7 -20.2 -2.9 -1.0 4.0 10.1 12.6 11.7 5.4 3.1 -6.8 -4.7 -0.4 10.38 2008 -8.2 -9.9 -10.0 -4.0 3.1 8.8 12.2 9.1 4.9 -0.4 -7.9 -7.7 -0.9 8.19 2009 -9.3 -16.9 -7.4 -2.0 5.6 8.6 11.9 12.2 7.3 -2.0 -2.9 -12.8 -0.7 9.78 2010 -16.2 -19.1 -11.2 0.0 5.3 8.8 13.1 9.9 7.0 1.4 -13.4 -12.8 -2.3 11.53 2011 -15.2 -19.3 -5.7 1.7 4.6 11.2 13.6 10.9 8.8 2.4 -2.5 -5.1 0.5 10.46 2012 -12.6 -14.7 -5.8 -3.1 4.6 8.6 11.7 10.2 6.3 0.5 -5.1 -14.6 -1.2 9.62 2013 -10.9 -10.3 -13.8 -2.4 8.1 13.9 14.0 13.1 8.6 -0.1 -6.3 -8.7 0.5 10.60 2014 -17.6 -4.8 -5.1 -1.0 3.4 9.2 15.4 12.2 6.2 -0.2 -7.9 -10.8 -0.1 9.82 2015 -16.1 -8.0 -3.3 0.8 5.1 9.2 10.9 12.7 8.4 -0.2 -4.4 -9.1 0.5 9.03 2016 -19.2 -9.6 -4.8 -0.2 8.2 9.8 14.8 10.5 7.8 2.3 -6.8 -9.0 0.4 10.31 2017 -10.1 -10.7 -6.5 -4.4 1.9 7.8 13.6 10.4 6.5 0.7 -8.2 -13.8 -1.1 9.16 2018 -14.6 -15.6 -13.0 -1.4 7.2 9.4 18.1 11.4 7.1 -1.2 -1.7 -9.4 -0.4 11.15 2019 -15.3 -14.7 -9.2 1.1 3.8 9.0 12.3 10.7 6.9 -3.7 -10.9 -8.2 -1.6 10.08 2020 -13.3 -10.3 -6.4 -2.4 3.8 11.0 13.6 11.2 7.1 1.5 -1.8 -8.8 0.5 9.08 2021 -12.4 -15.6 -6.0 -0.6 3.0 12.9 14.3 11.1 5.9 -0.3 -10.4 -14.5 -1.1 10.78 2022 -11.5 -12.3 -4.5 -1.0 5.0 12.0 15.4 13.1 6.4 1.3 -4.6 -12.9 0.6 10.05 2023 -10.3 -8.8 -13.1 0.1 6.8 11.9 13.4 13.5 8.1 -2.1 -10.3 -14.7 -0.5 10.85 2024 -16.1 -10.8 -6.4 -3.6 4.9 12.8 16.8 15.6 9.3 1.0 -3.4 0.0 1.7 10.49 MEAN -14.4 -13.3 -8.5 -2.5 3.8 9.9 13.2 10.9 6.0 -0.8 -7.8 -11.9 -1.4 S.D. 3.96 4.42 3.43 2.03 1.82 1.81 1.86 1.41 1.61 2.35 3.45 4.43 1.34