December brought an ordinary end to an exceptional year. The average temperature for the month was 6.4C making it our third-warmest December, and the maximum (13.4C) and minimum (-5.3C) temperatures were in the normal range. Rainfall was about average at 63.4mm with no particularly wet days – the highest daily total was 12.4mm on the 12th. Windrun was 2964nm with no exceptional wind speeds.
The only unusual feature of December was an intense area of high pressure that brought a cold, clear spell at the end of the month. The barometer reached a high of 1042.9hPa on 29 December, our second highest pressure since the station was set up (the record is 1043.9hPa in February 2012). The same day saw the lowest temperature of the month with -5.3C recorded at 0725, but there was none of the snow that affected the north of the UK, and for a couple of days it was almost completely calm.
Much of the earlier part of the month was spent in a mild south-westerly airstream, hence that slightly above-average temperature, but most of the Atlantic low pressure systems passed well to our north and we avoided the heavy rain and gales that affected northern areas. One exception was a particularly deep low that tracked south-east across Wales on Boxing Day – at one point it was heading on our direction, but in the event it moved off across the midlands and the only effect here was a blustery wind.
If December was uneventful, the same cannot be said of 2014. The year started with the wettest winter on record here, and January’s total of 157.8mm makes that by far our wettest month. The winter of 2013/4 followed a wet autumn, and generated the floods that brought so much misery to the Levels. The low pressure systems that led to all the rain also generated some spectacular gales, with perhaps the most memorable being the St Valentine’s Day storm – that brought our highest-ever gust of 46.1kts early on the 15th February.
The apparently unending procession of deep lows of that winter had another effect, which attracted little attention with all the damage caused by wind and rain – the air was warm as well as wet, and the winter of 2013/4 was the mildest we have recorded here. January saw only two air frosts and February none at all, and a mimimum of -1.2C recorded in March was the lowest temperature of the year until November.
Spring 2014 was warm and wet, and by the end of June it was already an exceptional year – the rainfall total was double what we would expect at the halfway mark, and each of the first five months of 2014 was the second-warmest on record here. June capped that by being our warmest June on record, so it was already on the cards that 2014 might be an unusually warm year. July didn’t quite match 2013’s high temperatures but it was another very warm month with some spectacular thunderstorms – and then came August.
August was thoroughly miserable, with the lowest average temperature for the month and the second-highest August rainfall adding to 2014’s already high total. Normal service was soon resumed, though, with September and October both producing record high average temperatures. September was remarkably calm thanks to persistent high pressure, but October produced another rainfall total over the 100mm mark – by now it was clear that 2014 likely to be a record-breaking year in several respects.
November was on the wet side but nothing exceptional and, as we have seen above, December was unexceptional. Although rainfall totals ran high for most of the year, the annual total of 973.6mm fell some way short of 2012’s record 1008.2mm: but the average temperature for 2014 came out at 11.6C, and that is a new record and about 1C above the average for this station – but it is only 0.1C above the previous record set in 2011.
With floods and gales, thunderstorms and heatwaves – it may be a while before we seen other year like 2014.