YOU SAID:

You know it´s cold outside when yoou go outside and it´s cold

INTO JAPANESE

あなたは外に出ると外が寒くて寒いです

BACK INTO ENGLISH

It's cold and cold outside when you go out

INTO JAPANESE

外出するときは寒いです、外は寒いです

BACK INTO ENGLISH

It's cold when you go out, it's cold outside

INTO JAPANESE

あなたが外出するときは寒いです、外は寒いです

BACK INTO ENGLISH

It's cold when you go out, it's cold outside