If you're familiar with Wis. weather, you know you've got to pack for just about anything if you're planning to spend a few days with Mother Nature.
"You never know what the weather is going to be when you're camping," said Jim Anderson.
Up at Blue Mound State Park from Chicago for the weekend, Jim Anderson and his family aren't letting the below-average temperatures get in the way of tradition.
"We're actually wearing these caps that Jim got us to keep us warm at night," said Susan Ryan, Jim's wife. "Even though it's still pretty warm in that camper, I think it was getting into the 50s, mid 40s at night."
"We've been camping for many years," Jim said. "And when I was a child we camped, so I do it with my family now. And of course it's Wis., so it's a wonderful state to do it in."
The park manager says all 90 campsites at Blue Mound are full for the Memorial Day weekend. "Tonight we probably have around 350-400 people staying in the park," Kevin Swenson said.
But unlike years past, when most people headed to the pool to cool off, this year many are staying close to their campsites to keep warm.
"There's definitely a lot of campfires going on," Swenson said. "A lot more people buying firewood this weekend. Typically they come in and buy one or two bundles. They've been coming in and buying four or five at a time. "
And when firewood isn't enough, a little electricity can go a long way. "There's actually a little heater in there that we turn on," Susan said. "We've turned it on one or two times."