Winter of 2010–11 in the British Isles
The winter of 2010–11 brought heavy snowfalls, record low temperatures, travel chaos and school disruption to the islands of Great Britain and Ireland. It included the United Kingdom's coldest December since Met Office records began, with a mean temperature of −1 °C (30 °F), breaking the previous record of 0.1 °C (32.2 °F) in December 1981.
Source: Wikipedia — Winter of 2010–11 in the British Isles (CC BY-SA 4.0)