What I notice about you station is that it's displaying temperature and dew point temperature in whole degrees while my station (5in1 with Access) shows decimal tenths. Is there a way to set yours up to display decimal? I think that will solve the problem. It's only a guess but what I think is happening is that the software is truncating the temperature reading and rounding the dew point temperature. (and yeah I know that's a poor way to do things and doesn't make any sense but I'm pretty sure it's what's happening)
Here is an example at about 3AM this morning your station was showing a temp of 54 and a DP of 55. Hypothetically if the temperature was 54.8 with a humidity of 99% the DP temp calculates to 54.5. 54.8 truncates to 54 Deg and 54.5 rounds up to 55. Have you ever seen a two degree difference? If so then my theory won't work but otherwise I think it's probably correct.
FWIW, my station is a 5in1 that connects to WU using the Access and displays temps as a decimal. I looked back for over a year and can't find any instance when the temperature was higher than the DP temp. They seem to track accurately exactly as one would expect.
I also noticed
your station's humidity tends to track higher than the other nearby stations.
KNCCONNE22 is an example.