Mucha helada?

Question

How do you say,a sharp frost,in spanish'Is it;cayo mucha helada a noche;there was a sharp frost last night

Answer 1

Había una "escarcha fuerte/fuerte helada" anoche

Answer 2

Pero escarcha dura a tiempodel nascimiento de los corderas y el cielo no rojo por la noche;but sharp rime ar lambimg time,skies not red at night.Can my translation be improved here'

Answer 3

I would say,
Había una escarcha dura anoche.

I don't think you would use caer because frost doesn't fall.
There was is había

Answer 4

It might be helada fuerte? I'm not entirely sure.