My cheapy thermometers are at 6. Driving home from the beach yesterday along 404 and 50, all the rivers are completely frozen over including the Choptank in Denton and the Severn and South in Annapolis. The Narrows was mostly frozen and the Bay had a lot of ice on the western side, but the center and even along Sandy Point was still open. I heard The Plunge will only be a dip this year as they want participants to only go knee deep.