UK Extremes recorded on 2018-12-16
| High Day Max: | Santon Downham 7.3C |
| Low Day Max: | Wittering 6.5C |
| Low Night Min: | Rothamsted 1.0C |
| Wettest: | Rothamsted 5.4mm |
| Sunniest: | Tibenham Airfield 5.3hrs |
UK Extremes recorded on 2018-12-16
| High Day Max: | Santon Downham 7.3C |
| Low Day Max: | Wittering 6.5C |
| Low Night Min: | Rothamsted 1.0C |
| Wettest: | Rothamsted 5.4mm |
| Sunniest: | Tibenham Airfield 5.3hrs |