The line graph illustrates the mean temperature per month, whereas the table demonstrates the hours of sunshine in average in a year in London, New York and Sydney. Overall, it is clear that although London and New York become warmer but the temperatures start to decrease near the end of the year, the opposite trend is true for Sydney.
In January, the temperature in London is higher than New York with figures 8 and around 5 respectively. As the temperatures in both cities continue to rise, the temperature in New York becomes higher than London in middle of March; the figures go up gradually and reach peaks in July (just under 30 and around 23) before showing a downward trend until December with a lower temperature in New York than in London.
Turning to Sydney, the temperature starts to decline from January to July and then rises back in the end of the year with the lowest point just above 15. From the table, it is observed that New York has the highest number of hours exposed to the sunshine (2535 hours) and that was slightly higher than that of Sydney (2473 hours). Total hours of sunshine in London was the least and that was 1180 hours. 
The line graph illustrates the mean  
temperature
 per month, whereas the table demonstrates the  
hours
 of sunshine in average in a year in London,  
New
 York and Sydney.  
Overall
, it is  
clear
 that although London and  
New
 York become warmer  
but
 the  
temperatures
  start
 to decrease near the  
end
 of the year, the opposite trend is true for Sydney.
In January, the  
temperature
 in London is higher than  
New
 York with figures 8 and around 5  
respectively
. As the  
temperatures
 in both cities continue to rise, the  
temperature
 in  
New
 York becomes higher than London in middle of March; the figures go up  
gradually
 and reach peaks in July ( 
just
 under 30 and around 23)  
before
 showing a downward trend until December with a lower  
temperature
 in  
New
 York than in London.
Turning to Sydney, the  
temperature
  starts
 to decline from January to July and then rises back in the  
end
 of the year with the lowest point  
just
 above 15. From the table, it  
is observed
 that  
New
 York has the highest number of  
hours
 exposed to the sunshine (2535  
hours)
 and that was  
slightly
 higher than that of Sydney (2473  
hours)
. Total  
hours
 of sunshine in London was the least and that was 1180  
hours
.