normal three winter months
... normal three summer months累年最热三个月 normal three winter months累年最冷三个月 normals累年值 ...
基于54个网页-相关网页
normal coldest -month period
... normal coldest month累年最冷月 normal coldest -month period累年最冷三个月 normal hottest month累年最热月（3） ...
基于27个网页-相关网页