YOU SAID:

It was a cold night, so she was steaming

INTO JAPANESE

寒い夜だったので、彼女は湯気を立てていた

BACK INTO ENGLISH

It was a cold night and she was steaming

INTO JAPANESE

寒い夜で、彼女は湯気を立てていた

BACK INTO ENGLISH

It was a cold night and she was steaming