bfindley, I moved this thread to Eastern USA.
We usually do our 1st instate camping trip sometime in April.....and even that can be cold with freezing weather.
You will be limited to what campgrounds are open. Many close up for winter. Some of the campgrounds in the Shenandoah National park don't open until May....others in April.
As far as suggestions, we like the Park campgrounds, 1st Landing State Park, Kiptopeke State Park, and dry camping in the Jefferson and George Washington National Parks are great also.
As you might be able to tell, I am not much on commercial campgrounds.
Chap , DW Joy, and Fur Baby Sango
2006 Ford F150 Super Cab 4x4
2008 Surveyor 263