[Solved]-How do I rotate my HighCharts bar chart so its vertical, not horizontal?-Highcharts

You should try something like this:

$(function () {

Highcharts.chart('container', {

    chart: {
        type: 'columnrange',
        inverted: false
    },

    title: {
        text: 'Temperature variation by month'
    },

    subtitle: {
        text: 'Observed in Vik i Sogn, Norway'
    },

    xAxis: {
        categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
    },

    yAxis: {
        title: {
            text: 'Temperature ( °C )'
        }
    },

    tooltip: {
        valueSuffix: '°C'
    },

    plotOptions: {
        columnrange: {
            dataLabels: {
                enabled: true,
                formatter: function () {
                    return this.y + '°C';
                }
            }
        }
    },

    legend: {
        enabled: false
    },

    series: [{
        name: 'Temperatures',
        data: [
            [-9.7, 9.4],
            [-8.7, 6.5],
            [-3.5, 9.4],
            [-1.4, 19.9],
            [0.0, 22.6],
            [2.9, 29.5],
            [9.2, 30.7],
            [7.3, 26.5],
            [4.4, 18.0],
            [-3.1, 11.4],
            [-5.2, 10.4],
            [-13.5, 9.8]
        ]
    }]

});

});

http://jsfiddle.net/b940oyw4/

To expand on Moin Zaman's answer, I played with his jsfiddle http://jsfiddle.net/aznBb/ and found this.

This is horizontal.

chart: {
    type: 'bar',
    inverted: false // default
}

This is also horizontal.

chart: {
    type: 'bar',
    inverted: true
}

This is vertical.

chart: {
    type: 'column',
    inverted: false // default
}

This is horizontal and apparently identical to the bar charts.

chart: {
    type: 'column',
    inverted: true
}

Very odd. I can only guess that type: 'bar' aliases type: 'column' and forces inverted: true no matter what it's actually set at. It'd be nice if it just toggled the inverted boolean.