I think as you state, news outlets us MU, but NWS and related often use LNS/Airport readings.
In situs like today, microclimate/geographical diff's often lend a notable hand in what is observed, and what is shared.
I shared, because mine is 100% legit (right at Little Chiques creek to shells run) , and most will likely not hear of it, cause I'm not official. Just thought the numbers guys here would be impressed w/ it.
where that reading took place was a low lying dip and for maybe 1-1.5 miles i was in - territory. then as i got closer to Etown proper, i got back into the + side of the thermo.