>>1323730West Germany, Upper Rhine valley. We're shielded by mountain ranges somewhat, so winter is on average the driest season. And if precipitation comes, it's usually during strong west wind episodes from the Atlantic, which means rain at 10-15°C.
Only chance for snow is during wind change phases, so that cold Siberian and wet Atlantic air meet, a rather rare phenomenon
That also usually means that when it happens, it's disgusting wet, gooey, cakey stuff