boxplot

Dear all,

maybe my question is very simple and basically.please accept my apologize.

for coding of box plot i send this order on my data with two column: month
(May-09,.....Dec-10) and temperature.

boxplot(Temprature~month)

but in plot the X shown Dec-10 to the May-09, it is just convert.what is
problem and how can revise it.

so thanks
mahnaz