December on track to be the mildest on record

24 12 2015

Mowing the lawn has been the reality for some so far this December, with unseasonably high temperatures. It looks as though the UK is on track to break the record for the warmest December since records began in 1910 and some areas have also seen their wettest.

The latest temperatures for December (1st to 22nd) reveal that the month so far has been far warmer than normal. Early provisional figures* reveal that the mean temperature for December in the UK has so far has been 8.1C, which is 4.2C above the long-term average for the month and well above the previous record of 6.9C set in 1934.

The December figure for England has so far been 9.5C, that’s 5.1C above the same long-term average and 2C above the record of 7.5C set in 1934, and the other UK nations have been similarly warm:

  • the mean temperature of 9.3C in Wales, higher than the previous post-1910 record of 7.5C set in 1934, and 4.8C above average
  • the mean temperature of 5.6°C in Scotland is 2.8C above average, but is so far slightly lower than the previous December record of 5.8C set in 1988
  • the mean temperature of 7.5°C in Northern Ireland is 3C higher than average, and marginally higher than the 1988 December record

Tim Legg of the Met Office National Climate Information Centre said: “With no sign of any significantly cold weather to come in the remaining 9 days of the month, we’re on track to break the warmest December record which was set back in 1934.”

Rainfall 1 - 22 Dec 2015

Rainfall 1 – 22 Dec 2015

MeanTemperature Dec 1 - 22, 2015

MeanTemperature Dec 1 – 22, 2015

 

 

 

 

 

 

 

 

 

 

Rainfall and sunshine figures so far confirm December has been dull and wet across most of the UK, with sunshine well down on the long-term average while precipitation (which of course has fallen mainly as rain) has been well above.  Some places have seen record breaking rainfall:

  • Cumberland 310.9mm rainfall 1 – 22nd Dec (previous record 248.2mm 2006),
  • Westmorland 474.4mm 1 – 22nd Dec (previous record 365.1mm 2006)
  • Dumfriesshire 314mm rainfall 1 – 22nd Dec (previous record 307.5mm 2013)
  • Carnarvonshire 441.3mm rainfall 1 – 22nd Dec (previous record 376.6mm 1965)
  • Roxburghshire 237.8mm rainfall 1 – 22nd Dec (previous record 219.7mm 2013)

 

EARLY mean temperature sunshine duration precipitation
1-22 Dec 2015 Act Anom Act Anom   Act Anom
  Deg C Deg C hours % mm %
UK 8.1 4.2 17.7 43 148.0 123
England 9.5 5.1 19.8 42 86.5 99
Wales 9.3 4.8 16.3 39 237.1 143
Scotland 5.6 2.8 14.1 46 229.1 140
N Ireland 7.5 3.0 20.7 56 130.4 114

 

You can find out what the rest of the year has been like on our climate pages.

*Data from the Met Office’s UK digitised records dating back to 1910.

Please note that these provisional figures, especially for rainfall and sunshine, are subject to revision. Anomalies are expressed relative to the 1981-2010 averaging period.





Mild start to December

16 12 2015

Looking at figures dating back to 1960 this has been the mildest start to December for Wales (8.7C), south west England (9.8C) and south east England (10C), and the 4th warmest for the UK as a whole (7.1C), with 1979, 2000 and 2006 being marginally milder.

Early provisional figures* (1-14 December) show the first half of December has been very mild across England and Wales with the maximum daily temperatures 3.2C above average for the UK as a whole.

However there has been a sharp north-south contrast at times with much colder air over Scotland and some frosts.  Elsewhere the humid south-westerly airflow means the weather has remained similar to last month: cloudy with very few clear nights, mild nights and very little sunshine for most areas.

Mean Temperature 1 -14 December 2015

Mean Temperature 1 -14 December 2015

 

The main talking point so far this month has been Storm Desmond, bringing record-breaking rainfall totals over the Lake District and a lot of rain over many northern areas.

Around 200% of the whole month’s normal rainfall has already fallen in a few places in the Pennines and the Lake District, it has also been wet in Snowdonia and parts of southern & central Scotland.  There has been near-normal rainfall across many other areas, and actually below average, for this point in the month, in parts of southern England.

EARLY mean temperature sunshine duration precipitation
1-14 Dec 2015 Act deg C Anom deg C   Act Hours Anom %   Act mm Anom %  
Regions            
UK 7.1 3.2 13.4 33 100.2 83
England 8.6 4.3 15.7 33 56.7 65
Wales 8.7 4.2 11.0 26 140.9 85
Scotland 4.2 1.4 10.4 34 161.6 99
N Ireland 6.1 1.6 13.1 35 99.0 87

 

Despite the mild start to winter following on from a mild autumn, it looks like 2015 will be an average year as far as weather is concerned.

This year’s damp and cool spring and summer mean that despite the current mild spell, the rainfall, temperature and sunshine statistics for the year as a whole are all hovering around average, with just 17 days left until the end of the year.

Indications are that the unsettled weather will continue through Christmas and into the new year. Showers or longer spells of rain are expected across all parts, with the heaviest and most persistent rain in the north and west, and the best of the drier conditions across south-east England.

We can expect gales at times, again especially in the north and west. Temperatures will be closer to average than of late, but still generally above, with any snowfall restricted to the high ground of Scotland and northern England.

Please note that these provisional figures, especially for rainfall and sunshine, are subject to revision. Anomalies are expressed relative to the 1981-2010 averaging period.

*Data from the Met Office’s UK digitised records dating back to 1910.





Warm start to November

16 11 2015

Early provisional figures* (1-15 November) show the first half of November has been very mild with maximum daily temperatures 3.8C above average for the UK

Central England Temperature data set shows the start to the month has been the second warmest since this record began in 1772.

Local temperature records have been broken at various stations with only November 1938 seeing a warmer start to the month.

There has been an absence of frosts in almost all areas, largely because a humid south-westerly airflow means the weather has been cloudy and there have been very few clear nights.

 

MeanTemp 1-15 November 2015

MeanTemp 1-15 November 2015

The increased cloud means most areas have seen very little in the way of sun, with levels well below normal across southern and central England and also south-west Scotland. At this time in the month we would expect to see 50% of the monthly average however very few places have had as much as this and the UK as a whole has seen just 32% and Wales has seen less than half the sunshine we would expect mid month.   In the case of southern England it has also been remarkably dull, with some stations having only had 10 hours or less of bright sunshine in 15 days.

For many the start of the month has been wet, with the UK as a whole having had 75% of the whole months average rainfall (we would expect to see 50% at this time of the month). Parts of southern & central Scotland, the Lake District, Pennines and Snowdonia are among the areas already well above their whole-month average. However it was not a wet picture across the whole country, north-east Scotland and most of southern & eastern England have had slightly less rain than would be expected by this point in the month.

EARLY mean temperature sunshine duration precipitation
1-15 Nov 2015 Act Anom  Act Anom  Act Anom 
  degC degC hours % mm %
Regions            
UK 10.0 3.8 18.1 32 90.5 75
England 11.2 4.3 17.5 27 59.8 68
Wales 10.7 3.9 20.3 36 128.5 79
Scotland 8.0 3.0 18.4 40 132.5 80
N Ireland 9.6 3.1 18.3 34 83.1 74

 

For the rest of November indications are that after an unsettled week the weather will turn colder with temperatures dropping nearer to the expected average for Novemeber if not a little below.  However milder conditions look likely to return for a time at the end of the month with rain and strong winds for much of the UK.

Please note that these provisional figures, especially for rainfall & sunshine, are subject to revision. Anomalies are expressed relative to the 1981-2010 averaging period.

*Data from the Met Office’s UK digitised records dating back to 1910.





Warm, sunny and dry October

30 10 2015

Early provisional figures (1-28 October) show sunshine and temperatures were above normal in almost all places this month while rainfall has been below average, especially in western areas.

Much of October has been relatively settled, with high pressure dominating our weather. This has led to many dry, sunny days but cold nights and even a few frosts (coldest so far -5.0 °C at Braemar on 17th).  Although the end of the month so far has been more unsettled, it has remained milder than average.

Rainfall has been below average, especially in the west of the UK, with only around 30% of average in eastern parts of Wales.  The exception to this has been a band from Cambridgeshire to North Yorkshire and around Aberdeen where rainfall has been around average (at the time these figures were compiled we would expect around 90% of the month’s total rainfall and sunshine to have happened).

1-28 October 2015 sunshine

1-28 October 2015 sunshine

1-28 October 2015 rainfall

1-28 October 2015 rainfall

 

 

 

 

 

 

 

 

 

 

 

Maximum temperatures (daytime) have been above normal in almost all areas for October, with north west Scotland being 2°C above, while south-east England stayed around average.  However cooler nights have led to Mean temperatures (average of daytime and night-time temperatures) over most of England and Wales being near average, but a degree or so above in parts of Scotland and Northern Ireland.

EARLY mean temperature sunshine duration precipitation
1-28 Oct 2015 Act Anom Act Anom Act Anom
  degC degC hours % mm %
Regions            
UK 9.9 0.4 88.5 96 61.6 48
England 10.6 0.2 89.5 87 50.5 55
Wales 10.0 0.1 89.0 96 64.3 38
Scotland 8.6 0.7 85.4 113 78.4 45
N Ireland 9.8 0.4 94.7 108 64.8 54

 

Meanwhile Halloween starts off cloudy or foggy for many with some patchy rain across northern parts.  However this clears leaving a mild day with patchy sunshine for many in the afternoon.   Sunday, 1st November, looks much the same staying mostly dry with some sunny spells.  Check out our five day forecast for more details.

Please note that these provisional figures, especially for rainfall & sunshine, are subject to revision. Anomalies are expressed relative to the 1981-2010 averaging period.

 

 





Spooky heat for Halloween weekend?

28 10 2015

Last Halloween saw record breaking temperatures across parts of the United Kingdom, with both Kew Garden’s, London and Gravesend, Kent reaching a maximum temperature of 23.6C.

What can trick or treaters expect this year on Halloween?

The weather’s currently in an unsettled mood, with a mild south or southwesterly flow dominating the weather pattern. Most areas will escape night frosts for the rest of the week, and yesterday (Tuesday) parts of London reached almost 20 degrees during the afternoon. Although the next couple of days are likely to bring rain to all areas, the worst of the unsettled weather should stay in northern and western parts of the UK as we head into the last day of October.

Pressure chart for midday on Saturday 31 October 2015

Pressure chart for midday on Saturday 31 October 2015

Pressure will rise across the south allowing more settled conditions to take hold towards the south and east. The generally mild theme looks likely to continue with warm air spreading northwards from the continent. As a result there is a possibility that parts of southeast England could see maximum temperatures in the high teens, perhaps touching 20 Celsius. The extent and degree of warmth will be affected by how much cloud cover there is which is difficult to forecst accurately 3 days ahead, however therer will be some decent bright or sunny spells. You can keep up to date with the most recent forecast on our 5 day forecast pages.

Sunday sees the start of a new month and it’s looking likely that we will see similar weather to Saturday with many places staying dry with bright or sunny spells after early mist or fog clears. The warm air may hang on across the south where, if sunshine allows, it could turn very warm with temperatures getting close to the UK temperature record for November of  21.7C (reached at Prestatyn, North Wales on 4 November 1946). Record breaking or not, this weekend provides plenty of opportunities to get out and shake off those cobwebs.





Warm, dry, sunny start to October

16 10 2015

The first half of October has been dominated by high pressure, giving a warm, dry, sunny start to October across the UK.

The month started with some weather fronts crossing the UK bringing rain in places. However the mid month statistics* (1 -14th October 2015) show that from the 5th onwards a high pressure system has dominated our weather bringing dry, settled conditions for most of us.

However, because of the position high pressure, we have seen relatively cool air coming in from the north-east. This has resulted in plenty of pleasant, sunny days, particularly in western areas, but with temperatures dropping away at night and a few frosts in places (coldest in this period -3.7 °C at Altnaharra on 13th).  Sunshine hours and maximum temperatures so far this month have been above average, but many places have seen night time temperatures below what we would expect, meaning the overall mean temperatures so far are above average for the whole of October.

MeanTemp Oct 1-14 2015

Rainfall has been well below normal in western areas, although closer to what would be expected by this point in the month in some eastern parts of the UK.  As a whole the UK has seen just 20% of the expected monthly rainfall so far, well short of the 50% we would expect to see by mid month.

1-14 Oct 2015 mean temperature sunshine duration precipitation
degC degC hours % mm %
UK 10.3 0.8 57.1 62 25.5 20
England 11 0.6 60.7 59 25.2 27
Wales 10.4 0.5 60.2 65 24.8 15
Scotland   9.1 1.2 49.7 66 28.5 16
N Ireland 10.3 0.9 61.4 70 12.1 10

Of course, while these figures are interesting, they don’t tell us where the month will end up overall. Latest forecasts show that the settled weather is expected to continue for many over the next few days, before conditions become generally more unsettled across the UK with outbreaks of rain and stronger winds, interspersed with drier, brighter periods as we head towards the end of the month.

*Data from the Met Office’s UK digitised records dating back to 1910.





Dry, sunny but cool September

30 09 2015

Two spells of settled weather during September have contributed to a rather dry and sunny but cool September.

Provisional statistics for the month show that after a wet end to August, September has been drier than average for much of the UK with figures up to the 28 September showing that there has been 53.3mm of rain, only 55% of the September average of 96.4mm.

Northern and western Scotland have been particularly dry with only 37% and 31% of the September average for rainfall having been recorded. In comparison, parts of eastern and southeast England have seen above average rainfall. Wales has seen 75mm of rain, 64% of average, while Northern Ireland recorded 51% of the September average for rainfall with a total of 47.1mm.

Many places have enjoyed a sunny month with 137 hours of sunshine recorded across the UK, this is 10% above the average for September.

However, despite the dry and sunny weather conditions, September has seen some rather cool days and nights. Mean temperatures across the UK up until the 28 September are 0.8C below normal with minimum temperatures across England and Wales around 1.5C below the September average. Five UK observing sites have already recorded their first frost of the season.

September 2015 rainfall amount

September 2015 rainfall amount

September 2015 sunshine anomaly

September 2015 sunshine anomaly

 

 

 

 

 

 

 

 

 

 

 

PROVISIONAL mean temperature sunshine duration precipitation
Sep-2015 Act Anm (8110) Act Anm (8110) Act Anm (8110)
degC degC hours % mm %
Regions
UK 11.9 -0.8 137.2 110 53.3 55
England 12.6 -1.1 152.5 111 52.8 76
Wales 11.8 -1.1 151.9 119 75.0 64
Scotland 10.8 -0.1 112.0 106 49.3 36
N Ireland 11.7 -0.7 113.9 100 47.1 51

 

The outlook for the first few days of October is for the fine, settled weather to continue before we see a transition towards more changeable weather next week with rain at times. Check out our five day forecast for more details.





Dry start to September for many

18 09 2015

You may think September has been a wet month so far but according to early provisional Met Office statistics, the month has started out drier and sunnier than average for many across the UK.

However the picture has been varied, some parts of southern and eastern England have already had over three quarters of their whole-month average rainfall for September. While northern and western areas have been drier, with little in the way of rain so far for much of Northern Ireland and Scotland away from eastern coasts.

Figures up to 16th September show there has been almost 30mm of rain across the UK, which is just 31% of the September average of 96mm. We would normally expect about half of the average monthly rainfall to have fallen by this point in the month. While there has been almost 72 hours of sunshine, 58% of the monthly average of 125 hours, with some north-western areas being especially sunny so far this month.

01 -16 Sept 2015 Rainfall Amount

01 -16 Sept 2015 Rainfall Amount

Looking at individual countries, Scotland has been the driest with almost 21mm of rain, 15% of average, followed by Northern Ireland with almost 24mm of rain, 26% of average. England is the wettest country so far with almost 34mm 49% of average.  There was a dry anticyclonic spell for the UK lasting from 5th until 11th, since then there have been some noticeable falls of rain.

The UK mean temperature so far has been 12.2C, which is 0.4C below the full-month average.

EARLY mean temperature sunshine duration precipitation
Sep-2015 Act Anm (8110) Act Anm (8110) Act Anm (8110)
degC degC hours % mm %
Regions
UK 12.2 -0.4 71.8 58 29.8 31
England 13.0 -0.8 78.2 57 33.8 49
Wales 12.3 -0.6 73.2 57 42.2 36
Scotland 11.0 0.1 63.6 61 20.9 15
N Ireland 12.2 -0.2 56.1 49 23.9 26

 

While these figures are interesting, they don’t tell us where the month will end up overall. A few days of wet or cold weather could drastically alter the statistics, so we’ll have to wait for the full-month figures before making any judgements.

Meanwhile this weekend is looking fine and dry, with good spells of sunshine for many on Saturday and many places seeing settled weather continuing well into Sunday evening. Check out our five day forecast for more details.





So what happened to our summer?

28 08 2015

Our Chief Scientist Professor Dame Julia Slingo OBE FRS reflects on this summer’s weather and what has influenced it:

No-one can deny that we have had a pretty disappointing summer with a lot of unsettled weather and only a few warm spells, especially through July and August. Our weather has been dominated by low pressure over and to the west of the country that has brought us periods of heavy rain from the south – what we call the Spanish Plume. So what has been happening?

If we look beyond our shores there have been some big changes in the global climate this year. El Niño is in full flight, disturbing weather patterns around the world. The low pressure that has dominated our weather is part of a pattern of waves in the jet stream around the world that has brought crippling heat waves to places like Poland and Japan. And, looking back over past El Niños, you could have expected that a more unsettled summer might be on the cards for the UK. Closer to home the North Atlantic is more than 2 degrees colder than normal. It seems quite likely that the unusually cold North Atlantic has strengthened and pushed our jet stream south, also contributing to the low pressure systems that have dominated our weather.

So could all this have been anticipated? Seasonal forecasts for this summer suggested that temperatures and rainfall would be near normal. However, as the season progressed all the leading models around the world failed to capture the signal for unsettled weather over the UK. We all know that forecasting months and seasons ahead is still in its infancy and much more research needs to be done. On the other hand our day-to-day forecasts have been really successful in allowing us to warn of bad weather, highlighting yet again the benefits of our research that has delivered year-on-year and decade-by-decade improvements in forecasting skill. Our 5-day forecast is now as accurate as our 1-day forecast was when I started my career. This enables us to make so many decisions that keep us safe, protect our property, keep our infrastructure running and even when to go out and enjoy the sunshine!

All of this cannot happen without improvements to research and technology, and this week the first phase of our new supercomputer went live, five weeks ahead of schedule. This will enable us to provide even more accurate and relevant weather and climate forecasts to all of us, our government, emergency responders, and our many other customers at home and abroad.

The news that the BBC has decided that the Met Office won’t be their main weather provider when the current contract ends has raised the question of where will the new provider get their information from. It’s important to understand that no weather forecasting organization, whether it is a National Met Service like the Met Office or an independent company, can provide a service without a forecast, and that it is the leading meteorological agencies, like the Met Office, that build and deliver those forecasts. So whoever the BBC chooses to deliver their weather services in future, you can be sure that Met Office observations and forecasts will continue to be at the heart of them. We are committed to driving forward the skill and usefulness of our forecasts and ensuring that all of us benefit from the advances the Met Office makes in the coming years with our new supercomputer.





Mixed bag for the start of June

17 06 2015

It has been a very varied weather picture so far this month.

It’s been dry and warm for the south east of the UK, with some places around London having received less than 5 mm of rainfall so far and areas such as Essex, Hertfordshire, Suffolk and Cambridgeshire receiving less than 20% of the month’s average in places.

This year’s highest UK temperature so far, 26.8 °C, occurred at Kew Gardens (Greater London) on the 12 June.

Much of the rest of the UK has seen temperatures in general noticeably below average for June, continuing on from the rather cool May.  While rainfall totals are already close to the whole-month average in the central Scottish Highlands and in Nottinghamshire.

MeanTemp June

June began with two very unseasonal days, due to a deep low-pressure system to the west of the UK, bringing large amounts of rain and some strong winds to the UK, particularly southern areas. Apart from this, and some showery rain on the 5th/6th,

June so far has been relatively settled, especially over southern areas, although we saw a period of thundery outbreaks on 12th June affecting mainly southern areas due to a plume of very humid and warm unstable air moving in from France/Spain.

Mean temperatures for the UK so far this month have been 2 °C below normal in most areas, but colder in the far north-west of the UK and a little closer to normal in southern England. While the minimum temperatures have been well below average, by as much as 3 °C over some northern areas.

mean temperature sunshine duration rainfall
1-15 June 2015 Act (°C) Diff from avg (°C) Act (hrs) % of avg Act (mm) % of avg
UK 11.2 -1.8 117.6 69 31.3 43
England 12.5 -1.6 128.3 70 23.1 37
Wales 11.6 -1.6 121.6 70 41.8 49
Scotland 9.3 -2.0 99.3 66 43.9 49
N Ireland 10.3 -2.5 114.3 76 21.4 28

We would expect figures to be around 50% of the average figures by the mid month point.

For the latest weather forecast go to www.metoffice.gov.uk/weather








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