It would be interesting to show temperature anomalies.
ECMWF and NOAA / NCEP provide reanalysis over several years for each forecasting step. This makes it possible to compare the expected temperature with the average observed over several years for the same day of the year. But generally for the temperature, it is the one predicted at 850hPa (in fact the air mass temperature) which is compared. I am not sure that this kind of daily comparison is relevant at a local scale and at ground level, mainly because the resolution of reanalysis is very low (eg 80km for ECMWF)
Below today maps of temperature anomaly at 850hPa