These graphs show the various temperature, pressure, rainfall, and wind speed data for the last 168 hours . Click on the buttons below the graph to select the data you wish to see, followed by the colour of the data series. You can add or remove data sets from the chart by selecting a data series and selecting "Select Series" from the pop-up menu . You can zoom in to a specific time range using the zoom controls in the top left hand corner and then use the slider at the bottom of the graph to select the time period. Mouse over the chart to see the values at any given point in time.