"station_id" "year" "Jan" "Feb" "Mar" "Apr" "May" "Jun" "Jul" "Aug" "Sep" "Oct" "Nov" "Dec" 179891 1970 -9.9 -5.1 -0.3 12.2 17.3 21.3 20.3 14.7 9.6 2.6 -7.4 179891 1971 -7.2 -5.3 -1.9 4.8 20.2 19.1 15.2 10.0 0.3 -5.8 179891 1972 -6.1 -7.3 -3.7 3.2 12.3 16.2 19.0 18.2 14.4 6.8 0.8 -7.8 179891 1973 -5.4 -5.8 1.1 6.5 10.2 17.5 13.4 8.6 1.7 -0.4 179891 1974 -6.0 -7.3 -2.7 5.3 19.1 19.4 12.6 5.3 -3.4 179891 1975 -5.8 -6.1 16.7 20.9 13.2 8.3 2.7 -4.3 179891 1976 -6.6 -4.5 -1.8 6.5 11.8 18.8 19.5 19.0 13.6 6.8 0.8 -6.8 179891 1977 -8.2 -7.1 2.3 4.2 14.9 19.9 12.4 8.7 -5.4 179891 1978 -8.1 -7.0 -2.9 4.0 12.6 16.6 18.5 7.1 -5.0 179891 1979 -4.5 -7.0 1.7 16.6 20.8 8.2 4.6 -3.1 179891 1980 -2.4 5.6 11.0 19.0 20.2 12.7 7.6 179891 1981 16.9 19.3 18.6 13.0 7.0 1.6 -2.3 179891 1982 -9.5 -6.7 -1.2 4.6 11.3 14.7 20.4 17.5 15.2 8.4 4.3 -1.5 179891 1983 -5.4 -5.9 0.8 5.8 10.7 17.6 20.4 19.9 16.3 8.1 3.3 -4.7 179891 1984 -7.7 -2.6 -4.1 4.4 10.3 16.1 20.1 20.7 13.1 8.1 2.8 -2.1 179891 1985 -10.4 -3.8 -1.6 4.7 11.8 15.6 20.8 18.2 14.5 8.1 1.7 -6.9 179891 1986 -5.6 -7.7 -2.2 7.0 11.7 15.8 18.4 17.7 11.7 7.8 0.5 -4.8 179891 1987 -6.9 -7.4 -0.6 7.1 12.1 17.2 19.5 18.7 14.2 8.5 1.7 -4.2 179891 1988 -6.4 -4.7 -1.9 5.5 12.4 16.7 20.9 20.4 13.6 7.0 4.6 -5.2 179891 1989 -6.1 -6.6 -2.9 4.2 13.9 17.5 19.7 18.9 14.1 8.4 2.3 -10.2 179891 1990 -3.4 -6.0 -1.1 5.7 10.4 17.2 21.1 20.9 14.2 10.2 3.0 -1.7 179891 1991 -8.0 -4.4 -0.2 5.7 12.9 18.3 20.1 19.9 14.1 9.0 2.8 -6.8 179891 1992 -7.8 -7.2 -3.6 10.5 15.1 17.0 18.6 14.0 5.9 0.1 -5.4 179891 1993 -8.4 -10.1 -4.6 3.5 11.3 16.0 18.5 19.0 13.9 5.7 1.8 -2.6