Wearing a cowboy hat and leather jacket, Thompson trudged through ankle-deep snow as he made his way around Oskaloosa's town square, chatting with people at a coffee shop and the county courthouse.
"It looks like business goes on even in the snow," he told two people working at computers in the courthouse. "An inch of snow back home and we go to the house."
Earlier at a stop in Pella, Thompson said he enjoyed a chance for one-on-one politics.
"We're going directly to the people and it reminds me a lot of the way we campaigned in Tennessee. It's my kind of campaign and it's my kind of time, that means it's getting down to decision time," he said during a crowded town hall meeting at a coffee shop. "We're trying to figure out a way to meet the most people and be with the people in the most direct way."
The personal approach persuaded Janine Dorenkamp, 33, of Pella to caucus for Thompson.
The mother of three boys aged 7, 4, and 20 months said she was wavering between Thompson and Mike Huckabee until she met the former Tennessee senator.