"station_id" "year" "Jan" "Feb" "Mar" "Apr" "May" "Jun" "Jul" "Aug" "Sep" "Oct" "Nov" "Dec" 190535 1970 -7.6 -2.5 0.9 8.5 15.1 18.8 22.8 22.5 17.0 11.3 5.6 -3.9 190535 1971 -6.0 -1.8 1.6 6.7 13.3 19.6 21.6 21.2 17.9 13.3 3.2 -0.6 190535 1972 -2.4 -3.7 0.4 5.9 13.8 18.0 22.2 20.3 16.4 8.2 3.2 -1.2 190535 1973 -1.8 -2.8 4.9 9.5 13.5 20.2 22.3 22.8 16.4 11.0 5.1 1.4 190535 1974 -1.7 -3.0 2.6 9.6 12.2 18.0 21.7 21.2 16.5 8.2 5.1 0.6 190535 1975 -1.0 -2.1 1.1 6.3 16.4 18.7 23.0 20.5 15.1 11.2 8.0 -1.5 190535 1976 -5.7 0.7 3.4 10.6 14.1 21.1 20.9 20.4 15.6 9.1 2.8 -4.9 190535 1977 -7.5 -2.8 5.3 9.0 15.3 18.0 21.6 21.3 16.3 10.5 6.2 -2.3 190535 1978 -4.6 -5.8 0.3 7.0 14.4 18.8 21.2 21.2 14.5 9.5 3.9 -1.2 190535 1979 -2.1 -6.1 4.5 7.8 15.2 18.8 22.8 20.3 16.2 10.1 7.8 1.2 190535 1980 -2.7 -4.0 1.8 8.5 14.2 17.5 22.6 21.9 17.0 9.1 3.5 -3.0 190535 1981 -7.6 1.4 2.8 9.7 15.1 19.7 21.9 20.3 15.3 8.5 4.6 -1.5 190535 1982 -6.7 -2.5 1.9 7.0 14.4 16.7 22.0 19.4 16.4 10.0 7.0 2.2 190535 1983 -2.9 -1.2 3.5 8.5 13.2 19.7 22.6 21.7 18.2 10.3 5.7 -1.9 190535 1984 -4.6 1.4 -0.7 7.7 13.3 20.0 21.6 22.0 15.3 11.6 4.9 1.5 190535 1985 -6.6 -1.2 3.6 8.7 14.1 16.7 21.4 20.0 16.3 10.8 5.4 -2.9 190535 1986 -2.0 -3.7 3.6 9.1 14.4 16.8 20.1 19.3 15.0 9.8 3.5 190535 1987 -4.2 -3.0 2.8 8.0 14.3 18.5 21.8 19.7 16.4 9.2 4.6 0.2 190535 1988 -4.1 -1.8 2.8 7.5 14.0 18.2 22.6 22.6 15.7 8.2 5.9 -1.8 190535 1989 -0.8 -2.5 2.0 6.9 15.2 18.9 21.3 20.7 16.4 10.8 4.1 -7.8 190535 1990 0.5 -0.5 3.7 8.5 12.2 18.7 21.9 21.5 16.3 12.7 6.6 2.2 190535 1991 -3.4 0.1 4.1 10.0 16.8 19.1 21.8 21.9 15.5 11.8 5.4 -0.2 190535 1992 -2.4 -1.6 0.7 7.3 13.4 18.6 19.8 19.8 15.9 8.5 3.4 -1.3 190535 1993 -2.5 -5.5 0.5 8.6 15.1 19.2 22.0 22.0 16.3 8.8 4.8 -0.8