Zwave Thermostat- Outlier stats

Can anyone explain these annoying outlier points from my zwave thermostat? This is from a honeywell thermostat, but before this I had a trane that suffered from the same problem. It happens with current temperature and humidity. It's not like its terrible, it doesn't mess with my automatons or anything, but when I want to look into my heating history it really screws with the scale