<Tr> <Td_colspan="12"> Precipitation totals in mm </Td> </Tr> <P> One form of representation uses an overlapped combination of a bar and line chart used to show the climate of a place over a 12 - month period . </P> <P> Another method and uses a common horizontal axis while different vertical axis . Here both the precipitation and temperature are shown in bar charts . This method has an advantage that the range of temperature (average of minimum and maximum temperatures) can be shown, rather than just the average temperature . </P> <P> Climographs display temperatures in a clear and concise manner, however they may be misinterpreted when used in inappropriate situations . For this reason, it is important that they are utilized in a reasonable situation . This kind of graph is usually used in social studies . </P>

What do the bars on a climate graph represent