January 2020. Very mild. Anticyclonic for the first week and again from the middle of the month until the 26th. The month saw an intense anticyclone develop; London’s highest ever pressure of 1049.6 mbars was recorded at Heathrow on the 19th, and then 1050.5 was recorded at the Mumbles, Swansea, on the 20th.
There were fewer frosts than usual and only a little snow in a few places at the end of the month. Rainfall was 100% of average but it was wetter in the west and drier in the east. Sunshine was 94% of average, but particularly dull in the NW. The highest temperature of the month was 15.5C at Achfary (Sutherland) on the 7th and the lowest -7.9C at Braemar on the 10th. On the 10-11th 138.0 mm of rain fell on Skye.