The Met Office has recorded the UK's hottest ever December temperature.
The mercury reached 18.7C in Achfary, in the Highlands, Scotland, on December 28.
Meteorologists also logged the warmest ever winter day last year when temperatures reach 21.2C at Kew Garden on February 26.
The Met Office said : "A new provisional maximum temperature of 18.7 °C was recorded at Achfary in Scotland on the 28th December 2019.
"It will be quality controlled and, if validated, would be the highest temperature officially recorded in the UK during December."
It would beat the current top December temperature of 18.3C (64.94F), which was taken at Achnashellach in the Highlands in 1948.
The recording has been put down to a meteorological phenomenon known as the Foehn Effect.
This is a change from wet and cold conditions on one side of a mountain to warmer and drier conditions on the other side.
The most notable Foehn events tend to occur across the Highlands, where the moist prevailing westerly winds encounter high ground along Scotland's west coast.
The lowest temperature recorded on the same day was 1.7C (35.06F) in Writtle, Essex.
Dr Mark McCarthy, head of the Met Office ’s National Climate Information Centre, said: “2019 will be remembered as an exceptional year for weather records, as it is unusual to get both the UK summer and winter high temperature records within the same calendar year.
"But this continues a pattern of high-temperature records in the UK over the last few decades, as a result of our warming climate.”
The UK's hottest day on record was logged at Cambridge University Botanic Gardens on July 25, when a high of 38.7C was registered.
