Back to the question - the Battle of the Bulge series can be combined with a few of the DDay figures for fall (the infantry, NOT the paratroopers).
As the weather turned cooler in the fall/early winter the US Army found itself short of winter clothing at the front. The problem wasn't HAVING the coats and warm uniforms, but in MOVING them. As with many other things, the US Army had plenty of goods. The problem faced in Europe was that every truck used to carry coats was a truck that wasn't carrying gasoline, ammunition, or food to keep the fighting troops going. There were ships sitting at Cherbourg or off the Normandy coast waiting to be unloaded and supplies waiting to move forward. Bottom line - the US infantry "dogface" often faced cool weather with the basic M1941 field jacket with maybe gloves, a scarf or sweater added. As warmer clothing arrived it was issued out so units are seen with mixes of M1941 field jackets, overcoats, M1943 field jackets (the "modern" style green jacket), tanker jackets and other coats as available. If the extra snow on the BoB figures is a problem it can be removed/painted over. The US Army in Europe didn't do much in the way of snow camouflage until the couteroffensive in January, 1945, so avoid figures in white outfits for the fall scenarios.
Gary