The correct answer is does it.
The full sentence would be: "It doesn't usually rain in summer, does it?"
This is a "tag question." When the main part of the sentence is negative (doesn't rain), the tag question is positive (does it).
اذا كان لديك إجابة افضل او هناك خطأ في الإجابة علي سؤال (It doesn't usually rain in summer, (it doesn't - doesn't it - does it اترك تعليق فورآ.