Hi Joe, these are the current official temps across NI at 16.00.
Have to agree with Baltic - your readings look a couple of degrees on the low side.
Aldergrove -0.5 °C WSW 2 mph 12 km 1011 hPa, Rising Ballykelly -0.6 °C E 5 mph 5 km 1011 hPa, Rising Ballypatrick Forest 2.9 °C N 8 mph 35 km 1010 hPa, Rising Castlederg 2.2 °C WNW 5 mph 35 km 1011 hPa, Rising Glenanne 0.1 °C NW 10 mph 30 km 1010 hPa, Rising St Angelo 1.6 °C NW 6 mph 15 km 1012 hPa, Rising