Temperatures plummeted towards -20 in many areas and the entire country became a winter wonderland.
We even had a white Christmas.
We’ve delved into the archives to bring some of the images from the time.

21. Winter weather December 22nd
Dyed blue sheep in the hills of Co Antrim as the cold spell continues: Paul Faith/PA Wire Photo: PA

22. Winter weather December 22nd
Council workers clear frozen snow from footpaths in Ballymena town centre in Co Antrim as the cold spell continues. Paul Faith/PA Wire Photo: PA

23.
Heavy snow in rural areas makes it very difficult to reach the towns. INLT 51-805-CON

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