Winter weather in Scotland, January, February and March
It gets colder by 2 c degrees for every 1,000 feet you climb. The top of Ben Nevis is 8 c degrees colder than sea level. The annual average air temperature there is –0.3 c degrees. The coldest months are January and February, once the snow falls then it stays widely on the tops until April. On Ben Nevis some snow lies in the gullies all year round. But the lowest temperatures in Scotland are inland and not on the West Coast.
The real trouble with height is the wind chill. As the wind rises over the hills it
In January you have 7 hours of daylight. It takes 7 hours to get to the top of Ben Nevis and back down, and you need to allow a spare hour in case of trouble. So start before dawn. Ugh! The temperature at the top, with wind chill, can be -10%