I think that the line graph is inappropriate for this situation.
This is because line graphs are used to show data that changes overtime, but in this situation, the motive to make the graph is to see the number of different weathers, not the change overtime or whatever.
The bar graphs are correct because they are used to compare facts and see relationships quickly, therefore is suitable. Pie charts show the overal of everything so when it is okay to put them together into a pie chart. Pictograms show the units of the number of the weather.