<html>
    <head>
        <script type="text/javascript" src="http://www.google.com/jsapi"></script>
        <script type="text/javascript">
            google.load("visualization", "1", {packages:["linechart"]});
            google.setOnLoadCallback(drawChart);
            function drawChart()
            {
                var data = new google.visualization.DataTable();
                data.addColumn('string', 'Temperaure');
                data.addColumn('number', 'Jan');
                data.addColumn('number', 'Feb');

                data.addRows([
                    ['4h', -5, 10],
                    ['5h', 0,  11],
                    ['6h', 7,  11],
                    ['7h', 10, 12],
                    ['8h', 10, 12],
                    ['10h', 11, 13],
                    ['11h', 12, 14],
                    ['12h', 14, 15]
                ]);

                var chart = new google.visualization.LineChart(document.getElementById('chart_div'));
                chart.draw(data, {
                    width: 500,
                    height: 240,
                    legend: 'right',
                    title: 'Temperaure'
                });
            }
        </script>
    </head>

    <body>
        <div id="chart_div"></div>
    </body>
</html>