(2) Last night, the west wind crossed the garden, indicating a short time. Last night, the west wind indicated a rapid change, which should be the weather. So, B didn't satisfy the problem.
(3) The sunrise in the east and the rain in the west are changeable, and it should be the weather. So c doesn't fit the question.
(4) It rains in succession during the Qingming Festival, indicating that it is a climatic feature formed for many years, that is, it is regular and stable, so it should be climate. So d fits the question.
Therefore, choose: d.