Winter Wonderland theme in the Spring or Summer...???

Hubby and I have been thinking about changing our wedding date from the Winter to either Spring or Summer but we wanted to keep our same wedding theme Winter Wonderland. I desperately want to have our reception on a boat or at our beach house but in the winter it's going to be too cold to be on the water. Hubby really wants to have our ceremony at our church in Ft. Washington so if we do that we'll most likely have our reception on a boat at the National Harbor which is not too far from our church but I've been thinking bout having both the reception and ceremony at our beach house. My only question is can we still keep our Winter Wonderland theme? WHacha think?