Do you have fan aspiration? I think the differences come down to that. I almost always read lower than the surrounding airport sites, but I have a 9v fan. Those that are passive tend to get the extra few degrees this time of year. The home sensors really aren’t much of a dropoff in accuracy from ASOS anymore. It comes down more to siting and shielding. The Davis Sensirion sensors are only about 0.1-0.2C error now in lab settings.
The dews were pretty high, but yeah, everything has to be sensationalized now. Climate change is real, but cnn.com is always a good laugh when they get on their rants linking every extreme weather event to climate change.