November was unusually mild and windy, but not particularly wet. Low pressure systems were the dominant feature, but for much of the month there was a persistent high pressure area over Europe and, as the Atlantic lows moved along the northern edge of this high pressure, warm and humid air was channelled over the south of the UK – hence we saw a good deal of mild and cloudy weather.
November began with very quiet weather – almost a dead calm – and for the first couple of days low ground was covered in a blanket of fog while hilltops were bathed in sunshine. A temperature of 22.3C was recorded at Trawsgoed in Wales on the 1st, a new UK record for November, but here in the fog we could only manage 12.2C. The 6th produced a new November temperature record for this station, reaching 17.7C at lunchtime in cloudy conditions – a good indicator of the warmth of the south-westerly airstream. The arrival of the first low pressure system to be named by the Met Office, Abigail, on 12th November put an end to the quiet spell, and was soon followed by Barney which produced the highest wind speeds of the month – an average of 27kts gusting to 36kts was recorded on the evening of the 17th.
The only chilly spell was from the 20th-24th, when the high over Europe receded and Atlantic lows pulled cold Polar air over the UK, producing the only air frost of the month early on the 23rd. At least we saw some blue skies in the cold, clear air.
The end of the month saw another area of high pressure develop to our south and a deep low pressure system (Clodagh) to the north. This meant a return to milder weather, but also brought more wind and rain – alhough wind speeds were not quite as high as they were in the middle of the month, the wind was persistent. Overall, this was the second-windiest November recorded here.
It was also the warmest November we have recorded with an average of 11C, as well as that high of 17.7C. The rainfall total of 67.4mm, though, was a little below average.
Despite the mild November, overall autumn temperatures were about average at 12C – September and October were both fairly cool months and offset the mild November. Rainfall was below average, though not exceptional, at 150.6mm.
Updated 2 Dec 2015 to correct the date of the record high temperature of 17.7C.