Statistics announce an average autumn

29 11 2013

Early statistics for autumn 2013 suggest it has been a fairly normal season overall with temperature, rainfall and sunshine amounts all quite close to the long-term average.

Our early season assessment for autumn (Sep-Nov) uses figures from 1 September to 27 November, then assumes average conditions for the final few days of November.

According to that estimate, the UK mean temperature for the season is currently 9.8 °C, just 0.4 °C above the long-term average.

UK rainfall over the same period was 331.7mm, which is about 96% of the long-term average. Sunshine is similarly close to average, with the UK’s 274.4 hours adding up to 97.3% of the long-term average.

As ever when looking over a season, there can be a lot of variation within the three months. For example, while September’s temperatures were average, October was well above average and November was slightly below – but overall they make a fairly average season.

Similarly with rainfall, the period from mid-October to mid-November was wet and unsettled, but the remainder of autumn has been generally on the dry side, so rainfall statistics are also unremarkable taken as a whole.

Autumn 2013 will most likely be remembered for featuring the St Jude’s Day storm, which was one of the most significant and disruptive storms to impact the UK in the past few years.

Full statistics for Autumn and November will be available on our climate pages later next week.

Early autumn statistics:

Mean Temperature Sunshine hours Rainfall  
Autumn Actual Diff from Avg Actual % of Avg Actual % of Avg
  degC degC hours % mm %
UK 9.8 0.4 267.0 97 331.7 96
England 10.7 0.4 294.9 97 268.2 108
Wales 10.4 0.6 242.9 88 434.7 97
Scotland 8.3 0.3 229.7 101 414.6 87
N Ireland 9.8 0.3 254.0 100 300.7 93




November 2012 weather summary video and your pictures

13 12 2012

November saw an exceptionally wet spell of weather towards the end of the month causing widespread disruption from flooding and landslips. In this video, forecaster Helen explains the weather that characterised November.

We’ve also included some of your photos of November weather that you sent in via Twitter and Facebook. Send in your December photos and you could feature next month!

Your weather photos

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UK rainfall over the last eight days

27 11 2012

After a dry start to the month, the last eight days have seen some very wet weather affect the UK, causing widespread flooding and disruption. So just how much rain has the UK seen and where has been wettest? The following maps show the full picture.

UK rainfall from 19-27 November 2012

The darkest blues on the map above show the areas that have seen the most rainfall, with South West England, Wales and parts of Northern England being particularly affected. How do these totals compare with the monthly average for November?

Eight day rainfall totals compared to whole November average

This map shows that areas from North East England through the Midlands to South West England have seen above average rainfall during the last eight days. However, parts of Northern Ireland and Scotland have seen very little.

As always, we have worked closely with the Environment Agency throughout the recent weather and have issued a series of accurate and useful forecasts and warnings which have helped emergency responders, county councils and members of the public stay informed about the latest developments.

Assistant Chief Constable of Devon and Cornwall Police, Paul Netherton, said: “I would like to formally thank and recognise the hard work of the Met Office over the past week. The information provided was invaluable and enabled the responders in Devon, Cornwall and the Isles of Scilly to prepare and respond effectively to assist our communities.”

For the rest of this week it looks as though there will be some respite from the rain with much drier conditions forecast. It will be colder though, with an increased risk of frost, fog and even ice towards as we head through the next few days.





Very mild start to November

17 11 2011

The first part of November has been very mild, dry and quite sunny across the UK, according to provisional Met Office climate figures.

The UK average temperature for 1-15 November was 9.4 °C, which is 3.5 °C higher than the long term average. The warmest district of the UK so far this month has been East Anglia where the average temperature was 11.2 °C, some 4.5 °C above the long term average for the area.

We would normally expect the first half of November to be warmer than the second as we transition towards winter (which, meteorologically speaking, starts in December). However, even bearing this in mind, the temperatures seen in the first half of this month have been much warmer than normal.

Rainfall amounts have been well below normal across the UK for the first half of the month. The UK has seen 25.6mm of rain so far which is well below the level you would expect at the mid point of the month.  Northern Scotland has seen the driest weather with just 10.9mm of rain being recorded, a mere 6% of the monthly average.

Rainfall 1-15 November 2011

As you might expect from the low rainfall amounts we have also seen a fair amount of sunshine during the first half of the month. The UK has seen 61% of average for the month with 35.9 hours and Northern Ireland has seen a full months worth of sunshine in the first 15 days with 55.4 hours.

  Average temperature Sunshine hours Rainfall
Location 1-15 Nov 2011 Difference from 71-00 monthly average 1-15 Nov 2011 Percentage of 71-00 monthly average 1-15 Nov 2011 Percentage of 71-00 monthly average
UK 9.4 °C 3.5°C 35.9 61 % 25.6 mm 22 %
England 10.2 °C 3.8 °C 29.2 45 % 26.9 mm 32 %
Wales 9.5 °C 3.0 °C 43.5 75 % 36.3 mm 23 %
Scotland 8.1 °C 3.4 °C 41.3 86 % 20.3 mm 12 %
Northern Ireland 9.0 °C 2.9 °C 55.4 100 % 27.7 mm 25 %

For the UK, the warmest November on record was 1994 with an average temperature of 8.8C; and the driest was in 1945 when 22.1 mm fell.

However, with more than two weeks of weather still to come and temperatures expected to return to more normal levels before the month is out, it’s too early to say where this November will sit in the record books.

 








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