It's that perspective bias, we even see this with the NWS. OKX treats the northern zones like Canada, and the southern zones like the tropics. Reminds me of that Mass-holes map that was posted in this forum.
You can even see it with this storm with the LFOs in CT. 4 Southern Zones in CT, which are the northern most zones of OKX were the snowiest but the southern Zones of ALY (Litchfield) and BOX (Hartford, Tolland, Windham) included more rain/sleet/mix and less snow than areas south of them.