Wales Minimum Temperature (Degrees C) Areal series, starting from 1910 Allowances have been made for topographic, coastal and urban effects where relationships are found to exist. Seasons: Winter=Dec-Feb, Spring=Mar-May, Summer=June-Aug, Autumn=Sept-Nov. (Winter: Year refers to Jan/Feb). Monthly values are ranked and displayed to 1 dp and seasonal/annual values to 2 dp. Where values are equal, rankings are based in order of year descending. Data are provisional from January 2018 and Winter 2018. Last updated 04/06/2019. Year JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC WIN SPR SUM AUT ANN 1910 1.2 2.5 2.4 3.2 6.4 9.7 9.8 10.8 8.2 7.2 1.2 3.7 --- 3.98 10.12 5.55 5.54 1911 1.4 1.7 1.8 3.1 7.5 9.1 11.5 12.8 8.9 6.2 3.2 3.8 2.33 4.15 11.14 6.10 5.95 1912 0.5 2.0 3.7 3.6 6.7 8.6 11.0 8.5 6.9 3.9 3.7 3.8 2.09 4.69 9.40 4.82 5.27 1913 1.8 1.2 2.2 3.8 6.0 8.4 9.9 10.2 9.5 7.3 5.0 2.9 2.34 3.96 9.51 7.27 5.70 1914 0.6 3.3 2.5 4.4 5.6 8.7 10.6 11.0 8.4 6.5 3.1 1.5 2.23 4.18 10.15 6.01 5.54 1915 1.6 0.6 1.0 3.5 5.5 8.3 9.7 10.5 8.3 5.3 -0.8 2.5 1.26 3.35 9.49 4.25 4.70 1916 4.9 0.9 0.1 3.2 5.8 6.9 10.0 11.0 9.0 7.5 3.5 -0.8 2.81 3.03 9.33 6.69 5.19 1917 -0.8 -2.5 -0.4 1.1 6.6 8.7 10.5 11.0 9.7 3.9 5.2 -0.1 -1.32 2.42 10.08 6.27 4.45 1918 1.4 4.2 1.7 2.4 6.7 7.5 9.8 11.2 8.2 5.8 2.4 4.5 1.75 3.60 9.51 5.46 5.49 1919 0.7 -1.1 -0.2 2.4 7.4 8.4 9.1 10.4 8.0 3.9 0.1 2.8 1.48 3.19 9.31 3.99 4.36 1920 2.0 2.8 2.8 4.5 6.7 9.0 10.0 9.3 8.1 6.7 4.0 1.4 2.54 4.67 9.44 6.28 5.62 1921 4.6 1.6 3.4 2.9 5.4 8.4 11.7 10.5 8.4 8.1 2.1 3.6 2.55 3.93 10.21 6.20 5.93 1922 1.2 1.5 1.2 0.9 6.6 8.0 8.9 8.8 7.9 4.4 2.6 3.5 2.14 2.91 8.57 4.93 4.64 1923 3.0 3.2 2.9 3.5 4.9 8.2 12.1 10.4 7.8 6.5 0.4 1.8 3.25 3.76 10.25 4.90 5.40 1924 2.2 0.3 -0.1 2.2 6.7 8.8 10.1 9.7 9.2 6.6 3.8 4.5 1.46 2.94 9.56 6.55 5.37 1925 2.9 1.8 1.4 3.0 6.6 8.4 10.9 10.8 7.4 6.5 0.1 0.4 3.12 3.70 10.06 4.70 5.06 1926 2.3 3.9 2.9 4.4 5.1 7.6 11.7 11.2 9.9 4.2 2.2 1.5 2.16 4.14 10.22 5.44 5.60 1927 2.2 0.8 3.5 3.6 5.8 7.5 11.0 10.8 8.5 6.5 3.3 0.1 1.50 4.32 9.81 6.11 5.34 1928 2.0 2.7 2.2 3.7 5.8 7.9 10.4 10.3 7.5 6.6 4.6 0.8 1.57 3.90 9.54 6.25 5.38 1929 -0.8 -2.1 0.4 2.1 5.6 7.3 9.9 10.0 9.6 5.9 3.3 3.0 -0.65 2.72 9.11 6.24 4.56 1930 2.1 -0.7 1.5 4.0 5.8 8.8 10.4 10.4 9.4 7.1 3.0 1.9 1.52 3.77 9.89 6.53 5.36 1931 0.7 1.1 -0.1 3.7 6.0 9.3 10.4 9.8 7.6 4.6 4.7 3.0 1.22 3.19 9.85 5.61 5.07 1932 3.2 -0.2 0.4 2.4 5.6 8.2 11.2 12.0 8.7 5.0 3.7 3.0 2.05 2.82 10.51 5.79 5.31 1933 -0.8 0.4 2.6 3.7 6.6 9.2 11.5 11.5 9.3 6.3 2.4 -1.4 0.88 4.29 10.75 6.01 5.13 1934 1.3 -0.1 0.9 3.1 5.7 9.1 11.8 9.7 9.2 6.9 3.3 5.5 -0.08 3.22 10.22 6.47 5.57 1935 2.0 2.6 2.3 3.6 4.8 9.5 11.3 10.5 9.1 6.0 3.2 0.4 3.42 3.57 10.43 6.10 5.46 1936 0.8 -0.1 3.3 2.0 6.1 9.2 10.6 10.9 9.8 5.6 2.8 2.7 0.38 3.81 10.25 6.07 5.33 1937 2.3 2.8 -0.1 5.1 6.5 8.5 10.9 10.9 8.6 6.2 2.2 0.5 2.58 3.83 10.11 5.66 5.37 1938 3.0 2.0 4.0 2.2 5.8 8.9 9.7 10.7 8.8 7.2 6.1 2.0 1.84 4.02 9.76 7.35 5.89 1939 1.5 2.2 2.6 3.7 6.2 8.6 10.4 11.2 9.3 4.4 5.7 0.8 1.89 4.19 10.11 6.44 5.57 1940 -4.0 0.3 1.9 4.3 6.6 9.6 9.6 10.5 7.8 5.9 4.1 1.5 -1.02 4.30 9.92 5.90 4.85 1941 -2.2 0.1 1.1 2.3 4.1 9.2 10.9 10.1 10.2 6.7 3.5 3.2 -0.20 2.48 10.07 6.82 4.96 1942 -0.7 -2.9 1.8 4.2 5.6 8.0 10.2 11.5 9.2 6.7 1.8 4.4 -0.03 3.85 9.91 5.90 5.03 1943 2.6 3.0 2.5 5.5 6.0 9.0 10.4 10.9 8.3 6.4 3.7 1.0 3.36 4.63 10.12 6.14 5.78 1944 3.4 0.8 1.0 5.0 5.3 8.5 11.5 11.2 7.7 5.7 3.4 1.5 1.76 3.78 10.43 5.56 5.44 1945 -2.2 3.4 3.4 5.0 6.7 9.1 11.0 10.7 9.9 7.7 4.2 3.0 0.85 5.02 10.25 7.25 5.99 1946 0.0 3.4 0.9 4.4 5.2 7.8 10.3 9.6 9.8 6.5 5.4 0.5 2.10 3.51 9.25 7.22 5.32 1947 -0.4 -4.4 0.2 3.9 7.2 9.6 11.0 11.8 9.8 6.2 4.3 2.9 -1.34 3.75 10.82 6.76 5.23 1948 2.4 1.6 3.6 3.6 5.1 8.8 10.6 10.6 9.6 6.6 4.8 2.5 2.29 4.10 10.00 6.99 5.83 1949 2.8 2.0 1.4 5.2 5.4 9.1 11.5 11.1 10.9 8.1 3.8 3.1 2.46 4.00 10.61 7.63 6.24 1950 1.6 2.1 3.4 3.4 6.5 10.2 10.7 10.3 8.9 6.3 2.5 -0.7 2.27 4.43 10.41 5.89 5.45 1951 1.3 0.5 0.6 2.2 5.2 8.5 10.7 10.1 10.0 6.0 5.1 2.7 0.36 2.68 9.78 7.04 5.27 1952 0.3 0.3 3.3 4.1 7.7 8.7 11.4 10.9 6.7 5.6 1.8 0.8 1.10 5.07 10.36 4.70 5.16 1953 0.9 1.0 0.8 2.5 7.2 8.9 10.9 11.0 9.7 5.7 5.8 4.8 0.90 3.52 10.28 7.02 5.79 1954 0.7 -0.3 2.3 2.5 6.4 8.9 9.8 9.9 8.6 8.5 3.9 4.2 1.79 3.75 9.53 7.00 5.48 1955 0.1 -1.7 -0.8 4.4 5.2 9.3 11.3 12.4 9.4 5.3 3.4 3.0 0.97 2.93 11.01 6.02 5.15 1956 1.2 -3.6 2.2 2.1 6.1 8.2 10.8 9.2 10.4 5.8 3.6 3.3 0.27 3.46 9.41 6.58 4.96 1957 2.3 1.7 5.6 4.3 5.4 8.5 11.6 10.9 9.0 7.2 3.4 1.5 2.43 5.14 10.35 6.52 5.98 1958 0.9 2.0 0.0 2.6 6.2 8.5 10.7 11.1 10.7 7.3 3.9 1.8 1.43 2.97 10.12 7.29 5.49 1959 -0.6 1.5 3.7 4.7 6.9 9.2 10.9 11.2 8.3 8.0 4.3 2.9 0.89 5.09 10.44 6.89 5.94 1960 1.2 0.5 2.8 3.8 7.3 9.8 10.2 9.9 8.5 6.2 3.8 0.8 1.52 4.66 9.99 6.19 5.43 1961 0.6 3.7 3.5 5.6 5.7 8.5 9.9 10.5 10.1 6.9 3.3 -0.6 1.63 4.94 9.64 6.77 5.65 1962 1.2 1.5 -1.7 2.9 5.4 7.9 10.0 10.0 8.5 6.0 2.5 -0.4 0.69 2.22 9.32 5.69 4.51 1963 -5.2 -4.0 2.2 4.2 5.7 9.7 9.7 10.0 8.2 7.3 4.7 -0.3 -3.16 4.05 9.81 6.73 4.41 1964 0.9 1.2 1.1 4.2 7.9 9.0 10.7 10.0 8.9 4.7 4.4 0.4 0.60 4.40 9.91 5.97 5.28 1965 0.6 -0.4 0.8 3.3 6.5 8.9 9.4 10.0 7.6 6.9 1.5 1.9 0.20 3.54 9.44 5.35 4.79 1966 0.5 3.0 2.9 3.5 5.9 10.1 10.1 9.6 9.1 6.2 2.5 3.0 1.79 4.09 9.95 5.90 5.54 1967 1.8 1.9 3.3 3.5 5.6 8.5 10.9 10.6 9.2 7.2 2.0 1.8 2.24 4.15 10.03 6.16 5.56 1968 1.9 -1.4 2.0 2.6 4.9 9.3 9.9 10.7 9.5 9.4 3.8 0.7 0.84 3.16 9.97 7.61 5.30 1969 2.7 -2.2 0.0 2.5 6.2 8.0 10.8 11.2 9.3 9.0 2.1 0.3 0.47 2.94 10.03 6.80 5.05 1970 0.9 -0.2 0.2 2.5 7.4 10.3 10.3 10.7 10.0 6.8 4.9 1.5 0.35 3.38 10.45 7.22 5.48 1971 1.9 1.1 1.5 3.2 5.9 7.9 10.9 11.0 9.2 7.4 2.9 4.0 1.53 3.53 9.93 6.49 5.60 1972 1.3 1.3 2.1 4.0 5.6 6.7 10.3 9.6 6.5 6.3 3.1 3.1 2.22 3.90 8.91 5.31 5.01 1973 2.1 1.4 1.3 2.4 6.5 9.0 10.3 11.3 9.6 5.4 3.4 2.0 2.22 3.41 10.21 6.14 5.42 1974 2.8 2.0 1.4 3.0 5.6 8.5 10.4 9.7 7.6 4.4 3.5 5.1 2.29 3.35 9.53 5.19 5.37 1975 3.7 1.4 1.3 3.8 4.7 8.4 11.7 12.1 8.2 5.9 3.0 2.8 3.48 3.26 10.78 5.69 5.62 1976 3.1 1.3 0.8 3.1 6.6 10.1 11.7 10.7 8.5 6.4 3.0 -0.5 2.40 3.52 10.82 5.98 5.41 1977 -0.1 2.2 3.3 3.0 4.9 7.5 10.7 10.1 8.8 8.2 3.0 3.5 0.43 3.77 9.46 6.65 5.44 1978 0.9 -0.2 2.7 2.2 6.0 8.4 9.9 10.2 9.4 8.1 5.2 1.4 1.44 3.64 9.52 7.58 5.39 1979 -2.9 -1.6 0.9 3.2 4.5 8.5 10.5 9.8 8.4 7.2 3.6 2.7 -0.99 2.84 9.60 6.37 4.59 1980 -0.9 2.7 1.2 3.5 5.3 8.9 9.7 10.9 10.2 5.1 3.6 2.5 1.49 3.33 9.81 6.28 5.22 1981 1.8 -0.2 4.5 3.2 6.5 8.7 10.6 10.9 9.5 4.4 4.5 -2.1 1.42 4.73 10.08 6.11 5.22 1982 0.1 1.8 1.8 3.4 5.7 10.0 11.0 10.8 9.1 6.4 4.9 1.3 -0.12 3.62 10.60 6.81 5.54 1983 3.5 -1.2 3.0 2.0 5.7 9.1 12.6 11.2 9.5 6.6 4.4 3.0 1.27 3.57 10.99 6.83 5.83 1984 0.8 0.4 1.2 2.8 4.6 9.0 10.1 11.7 9.6 7.3 4.5 2.3 1.44 2.86 10.27 7.14 5.37 1985 -2.3 -0.6 0.8 4.1 5.9 7.5 11.0 10.3 10.1 6.9 1.0 3.5 -0.16 3.58 9.64 6.00 4.89 1986 0.8 -3.8 1.2 1.4 6.4 9.3 10.6 8.9 5.9 6.7 4.1 3.0 0.32 3.03 9.63 5.57 4.62 1987 -1.6 0.0 0.9 5.0 5.2 8.1 10.7 10.7 9.0 5.6 3.9 2.9 0.49 3.70 9.88 6.14 5.07 1988 2.6 1.4 3.1 3.6 6.2 9.3 10.4 10.0 8.8 6.6 1.6 5.2 2.34 4.30 9.92 5.66 5.76 1989 3.3 2.5 3.1 1.9 7.3 8.3 11.8 11.0 9.3 8.0 3.5 1.4 3.69 4.12 10.37 6.95 5.98 1990 3.6 4.0 4.3 2.7 6.7 8.9 10.9 12.4 8.0 8.3 3.5 1.2 2.97 4.56 10.76 6.62 6.23 1991 0.1 -2.0 3.8 3.6 6.1 7.4 12.0 11.1 9.1 6.3 3.6 2.2 -0.15 4.50 10.22 6.33 5.33 1992 0.7 2.4 3.7 4.3 7.7 9.4 11.3 10.4 8.9 4.1 4.3 0.9 1.76 5.25 10.37 5.73 5.68 1993 2.7 2.4 2.7 5.3 6.2 9.4 10.4 9.1 7.7 3.9 1.7 2.5 1.98 4.72 9.64 4.40 5.34 1994 2.1 0.3 3.9 3.4 6.0 8.7 11.0 10.6 8.6 6.2 7.4 3.6 1.69 4.45 10.14 7.37 6.02 1995 1.6 3.2 1.2 4.0 6.0 8.6 12.5 12.4 8.7 9.2 4.1 -0.3 2.80 3.74 11.22 7.34 5.97 1996 2.4 -0.9 1.4 3.7 3.9 8.0 10.5 10.8 8.5 8.0 2.7 0.0 0.42 3.00 9.79 6.42 4.94 1997 -0.6 3.0 3.9 4.1 6.0 9.3 10.7 13.1 9.6 6.2 5.6 2.9 0.72 4.68 11.05 7.14 6.17 1998 2.1 3.9 4.5 3.4 7.6 9.7 11.0 10.5 10.3 6.9 3.4 2.3 2.93 5.22 10.40 6.85 6.32 1999 2.3 2.4 3.5 5.0 8.2 8.4 11.7 11.2 10.1 6.8 4.5 2.1 2.34 5.56 10.45 7.11 6.37 2000 1.7 2.8 3.3 3.0 6.7 9.7 10.4 11.1 10.2 6.2 3.9 3.0 2.17 4.34 10.42 6.76 6.00 2001 0.4 0.5 1.4 3.2 6.9 8.8 11.1 11.4 9.5 9.6 4.2 0.4 1.34 3.82 10.46 7.77 5.64 2002 2.7 3.4 3.4 4.0 7.0 9.3 10.5 11.2 8.8 6.1 5.9 3.3 2.13 4.80 10.38 6.92 6.32 2003 1.5 0.5 2.6 4.6 7.0 10.1 12.1 12.1 8.5 4.6 4.8 1.9 1.80 4.73 11.45 5.96 5.89 2004 2.3 1.6 2.3 5.2 6.5 10.2 10.7 12.3 10.5 6.7 5.2 3.1 1.94 4.65 11.08 7.44 6.39 2005 3.3 1.1 3.6 4.5 6.2 10.1 11.6 10.4 10.1 9.4 2.4 2.0 2.55 4.77 10.70 7.34 6.27 2006 1.4 0.9 1.4 4.3 7.1 10.0 12.6 11.6 11.4 9.0 4.2 3.7 1.46 4.27 11.42 8.22 6.51 2007 4.1 2.5 2.8 5.3 6.9 10.4 10.7 10.4 9.5 7.0 4.5 2.1 3.46 5.00 10.49 7.02 6.37 2008 3.5 1.1 2.5 3.6 8.3 8.7 11.4 12.1 8.7 6.1 4.6 0.4 2.28 4.79 10.78 6.45 5.94 2009 -0.2 1.4 2.5 4.4 6.9 9.4 11.6 11.6 9.2 7.5 5.6 0.2 0.53 4.63 10.90 7.45 5.88 2010 -1.7 -0.6 1.2 3.2 5.4 9.2 12.1 10.4 9.4 6.1 1.7 -3.8 -0.69 3.27 10.57 5.75 4.41 2011 0.3 3.5 1.8 6.1 7.5 8.4 9.9 10.5 10.7 8.8 6.3 3.6 -0.12 5.11 9.58 8.57 6.44 2012 2.9 1.3 3.8 2.9 6.5 9.6 10.7 12.1 8.3 5.9 3.1 2.0 2.65 4.43 10.79 5.78 5.78 2013 1.5 0.3 -0.7 2.6 5.2 8.6 12.0 11.7 9.5 9.3 3.2 3.4 1.26 2.36 10.81 7.35 5.58 2014 2.8 3.1 3.0 5.4 7.7 9.6 11.5 10.4 9.5 8.5 4.9 2.4 3.09 5.34 10.51 7.66 6.58 2015 1.8 0.5 2.1 3.5 6.4 8.6 10.8 10.6 7.5 6.4 6.4 6.8 1.59 3.99 10.03 6.78 6.00 2016 2.8 1.5 1.7 3.1 7.4 10.9 11.8 11.9 11.2 6.6 2.5 3.4 3.75 4.07 11.52 6.75 6.24 2017 1.8 3.3 4.2 4.2 8.0 11.1 11.4 10.9 9.3 8.8 3.8 2.4 2.83 5.50 11.14 7.32 6.62 2018 2.1 -0.1 1.0 5.1 6.8 10.3 12.0 11.5 8.9 5.9 4.9 4.8 1.50 4.29 11.24 6.57 6.13 2019 1.6 2.5 3.9 4.4 5.7 3.00 4.68