What can you say about January 2023 other than it was another very typical January, mobile and a little on the mild side. The mean pressure chart does completely masks the fact that we had a cold spell in the third week, with a foot of snow here in the Highlands, followed by a very cold anticyclonic spell in the south to follow. The eight charts below of mean pentad pressures do five a little more detail into the subtle variations we’ve seen since Christmas.
