Yes, there were 2 nights in a row where we had a light frost. Consequently, the squash, sweet potatoes and tomatoes were killed. I could have spray drops of water on the plants to protect them but didn’t have the time to do so. However, I did put the frost blanket on the sweet potatoes but in vain. May be I should put the 6 mil plastic film that I used last winter. So the sweet potatoes remain a challenge for me.