set title "Suwałki"
set ytics
set y2tics 0,25,100
set grid ytics
set xrange [0.5:12.5]
set yrange [-20:20]
set y2range [-100:100]
set ylabel "temp. (°C)"
set y2label "opady (mm)"
set style fill solid
set boxwidth 0.8
set key off
set xtics font "Arial,12"
set term jpeg
set output "suwalki.jpg"
plot 'suwalki.txt' using 1:3 with boxes axes x1y2 lc rgbcolor "#4169E1",'suwalki.txt' using 1:4:xtic(2) with linespoints lc rgbcolor "#ff0000" linewidth 2 lt 1 pointtype 7