There had been a slow decline in 30 year mean maximum and minimum temperature in February between 1940 and 1990, but over the last 30 years maximum temperatures have rocketed up at the rate of 0.5°C per decade, although the rise in 3o year average mean minimum temperatures has been a little slower.
Remarkably, the rise in mean temperature seems to have coincided with a corresponding rise in precipitation in February as well. The linear trend from 1865 to 1993 was showing a very slight fall in 30 year average precipitation in February, but since 1994, average precipitation totals have increased by 5.8 mm each decade.
Sunshine in February has seen a rise of 3.1 hours per decade in the last 30 years. Totals have been rather static for the UKUK The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and Northern Ireland. for a period that began in 1960 and which ended in 2000.
So, the short answer to the question ‘what’s happening to the climate in February’ is, are they getting progressively warmer, wetter and sunnier.