plan to visit chengdu and jiuzhaigou either 19-apr or 3-may.pls advise the weather & suitable clothes

On April 19, it would be cloudy bothin the two places. You can take along overcoat and jeans.

As for May 3, in the two places, it may rain or shower. The average temperture would be about 15C in Jiuzhaigou and that of Chengdu city is about 21C. Relatively thick shirt, jacket and jeans can be taken along. An umbrella may also be of great help.