下雨很冷英语怎么说怎么写

"It's cold and rainy" 是表达 "下雨很冷" 的常用方法。
"It's raining" 表示 "正在下雨"，"it's cold" 表示 "很冷"。这两句话可以结合起来表示 "下雨很冷" 的意思。
例句：
It's cold and rainy outside, so I think I'll stay inside today. (外面下雨又冷，我想今天呆在家里。)
The forecast says it's going to be cold and rainy all week. (天气预报说本周会一直下雨并且很冷。)
"Rainy" 是形容词，意思是 "下雨的"。它源自中古英语 "regnig"，意思是 "下雨的"，最终演变成现在的 "rainy"。