Compare Three Sets of Data in Line Graphs

Here is a line graph to show the average temperature for every month of the year in Rome (Italy), London (England) and Wellington (New Zealand):

Example

What is the difference in temperature between Wellington and London in June?

Answer

6°C

We can see that the grey line for Wellington shows 10°C in June and the orange line for London is 16°C because it is just above the 15°C line.

16°C - 10°C = 6°C

Let's get started and have a go at answering some more comparison questions about this line graph.