If you don’t think soil temps matter at all, then you’re at odds with the professionals. RAH NWS’ case study of the March 2010 winter storm in central NC discusses them at length and that is indeed a storm where warm soil temps, sun angle, and BL temps near / above freezing made accumulations sporadic and variable depending on where banding for higher rates set up. Places that got most of their snow after sunset also did far better.
View attachment 167928
I’d also point out the late February 2020 winter storm as another where these factors limited impacts to an extent. We discussed it a bit in the postmortem to that storm.