The code or parameters for the chart are:

TITLE_FONT=Default-1
XLABEL=Number of days
XLABEL_FONT=Default-3|8
XLABEL_COLOR=#000000
XSCALE_MIN=0
YSCALE_MIN=0
YSCALE_MAX=3.8
BIG_TICK_INTERVALX=10
BIG_TICK_INTERVALY=1
XAXIS_GRID=1.0|#c0c0c0|DOTS
GRIDX=TRUE
YAXIS_LABELS=@image value='rain.gif'@\n\nRainy|@image value='sun.gif'@\n\nSunny|@image value='ray.gif'@\n\nStormy
XAXIS_BAR_STYLE=BAR
YAXIS_BAR_STYLE=BAR
XAXIS_FILLING=#33cccc
YAXIS_FILLING=#33cccc
XAXIS_TEMPLATE=@background value='LIGHTYELLOW'@@position value='+0px,+10px'@@border value='1|BLACK|NORMAL'@ #value#
XAXIS_CLOSED=TRUE
YAXIS_CLOSED=TRUE
LEGEND=FALSE
LEGEND_FILL=WHITE
LEGEND_VERTICAL=FALSE
LEGEND_BORDER=0.2|#000000|NORMAL
SERIE_1=Paris
SERIE_2=London
SERIE_TYPE_1=BAR
SERIE_TYPE_2=BAR
SERIE_FONT_1=Default-2
SERIE_FONT_2=Default-2
SERIE_LABEL_TEMPLATE_1=@background value='WHITE'@@border value='1|BLACK|NORMAL'@ #value#
SERIE_LABEL_TEMPLATE_2=@background value='WHITE'@@border value='1|BLACK|NORMAL' @ #value#
SERIE_DATA_1=12|43|50
SERIE_DATA_2=10|41|48
SERIE_BORDER_TYPE_1=RAISED
SERIE_BORDER_TYPE_2=RAISED
SERIE_BAR_STYLE_1=#0000ff;#00cccc;HORIZONTAL
SERIE_BAR_STYLE_2=#ff0000;#ffc800;HORIZONTAL
SERIE_NEEDLE_STYLE_1=3.0|#000000|NORMAL
SERIE_NEEDLE_STYLE_2=3.0|#000000|NORMAL
SERIE_NEEDLE_STYLE_3=3.0|#000000|NORMAL
BARCHART_VERTICAL=FALSE
BARCHART_BARSPACE=5
BARCHART_BACK=#ffff99
LEGEND_POSITION=RIGHT
LEFT_MARGIN=0.15
BOTTOM_MARGIN=0.15
CHART_BORDER=0.2|#000000|NORMAL
CHART_FILL=#ffffff
CHART_SHOW_TIPS=TRUE
CHART_TIPS_COLOR=#FFDC00
CHART_TIPS_FONT=Default-2|8
CHART_NOTE1=@position value='62%,20%'@@rotation value='90'@@font value='Default-4|8'@Weather statistics
CHART_NOTE2=@position value='15%,12%'@@font value='Default-4|8'@@color value='RED'@London @color value='BLACK'@/ @color value='BLUE'@Paris