I feel for you. We had a horrid Jan/Feb period and the ice has just thawed. Fortunately, both my dogs went out and did their business fast.
My dog came to me at 5 months with no concept of potty training or what the outside was for. Thankfully, when I got him in December, we could stand outside until he peed/pooped each time, reward, go back in. I took him out hourly and all we did was potty training for the first 2 weeks-no real "walks." More indoor exercise to compensate.
I made his crate as small as I humanely could and put his food and water in the crate. Remember, he was trained to use his crate for potty--it was gross when I got him. Anyway, I cleaned vigilantly when there was an accident--but honestly, given how bad it was, I'm shocked we haven't had *more* trouble. He's still excitement peeing in the house and will wet in the crate if his schedule is too disrupted (a late evening training class threw us off schedule and was tough to adapt to in the short run). He quickly stopped using his crate to potty for the most part, thankfully. He's 8 months now and I just stopped setting an alarm to walk him midway through the night (well, about 6 hours in). He's going 8 hours now and seems to be handling it well.
Radar, Aussie/BC mix, b. 2/27/2012
Jett, GSD foster pup, b. 7/15/2018