I run into this problem every year, but this year it is worse than in the past because I started my pumpkin seeds earlier than most years. Things in the grow closet are starting to get a little tight with leaves starting to touch together and I still have another 10 days until I want to plant outdoors.
Weather here in Midway, UT hasn't been very warm. Night time low temperatures are still hovering close to freezing. I can keep the plants from freezing, but it wouldn't be ideal.
The other problem that I have is that I don't have my irrigation system in place and I won't be doing that until April 29th. I can work around the hoop houses, but it would be better to have all the water lines in before I put the plants outside.