Here are some people who found some answers!
https://lnkd.in/dnXvZkf
“the concentration of indoor radon is related to the amount of rainwater (or snow), which “caps” the ground and prevents soil radon from escaping out of the soil surrounding the home.”
Just be aware that radon concentrations may be higher in your home than normal. If you’re ever looking to see the worst case scenario for radon levels (and I realize that’s a big if), then this is the time to test.