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January Rainfall Stats

February 3, 2014

By Paul Homewood

 

January 2014 Rainfall 1981 - 2010 anomaly

http://www.metoffice.gov.uk/climate/uk/summaries/anomacts

 

The Met Office have issued the stats for January, so let’s see what they say for rainfall.

As the map shows, it has been much wetter than normal in the south. Over the whole of the UK,it has been the third wettest January on record since 1910, with 1928 remaining the wettest.

Taking all months, however, the 183mm recorded this month only ranks as the 18th wettest.

 

image

http://www.metoffice.gov.uk/climate/uk/summaries/actualmonthly

 

Whilst Southern England has been much wetter than the 1981-2010 average, the absolute rainfall map

 

January 2014 Rainfall Actual

 

Apart from a few isolated spots, the heaviest rainfall in the south has been 200m and 300mm. This level of rainfall is in fact not uncommon in other parts of England, not that this is any consolation for those suffering in the floods.

The implication then is that the rainbelts have shifted further south than usual. The Met Office have not yet issued their report, so it will be interesting to see if they comment on this aspect.

What is most significant, though, is the cumulative rainfall throughout the winter. I believe it is fair to say that most of the flooding we have seen in recent weeks has been the result of a steady build up of rain over several weeks, with the result that the ground is saturated and rivers full.

We therefore need to look further back before January to see what has been happening.

I’ll be posting on this tomorrow.

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9 Comments leave one →
  1. xplod permalink
    February 3, 2014 9:55 pm

    New follower here – for a bit of perspective, my little weather station recorded 117.6mm this January, and 57mm January 2013. Can’t readily get at 2012’s figures except to say I recorded about 75mm for Jan/Feb/Mar. And my highest rainfall (with this equipment and software) was June 2012 with over 130mm. Just south (6 miles) of Leicester. Similar amounts recorded locally.

  2. John F. Hultquist permalink
    February 4, 2014 7:44 am

    Many times I have read comments like xplod’s regarding what goes on in his/her neighborhood and then there is no mention of where that is. I was relieved to see the location mentioned. Cheers! Okay, double cheers!!

  3. February 4, 2014 9:10 am

    The maps confirm my local measurements in the heart of Devon, which was just over 150mm. This is about 125-150% of normal. The ground has been pretty well saturated throughout the month, but my river has never risen to more than about 10% of the peak level that I have previously seen. This is because the rainfall total has never been high in any 24 hour period, and it takes an intense period of high rainfall to cause the river to rise to a high level.

  4. quaesoveritas permalink
    February 4, 2014 11:19 am

    The actual rainfall figures certainly put a different perspective on things, compare to the % of the average.
    The latter gave the “impression” that more rain fell in the South East and Central Southern England, when as usual, the greatest volume fell on the West Coast.
    I also notice that the scale on the % map has changed since the one published 30/1, which makes comparison difficult.
    For example the deepest blue on the latest map is >200% whereas on the 30/1 map it was >225%.
    Watching the BBC, you could have gained the impression that the actual amount of rain the been greater in the SE and CSE.

  5. mitigatedsceptic permalink
    February 4, 2014 11:37 am

    Has no one noticed – all rhis fuss is about a minuscule fragment of a highly connected, very complex and above all chaotic system? Perhaps we are now closer to knowing how many angels can dance on the head of a pin, but none of this brings us any closer to understanding weather, let alone climate.

  6. Retired Dave permalink
    February 4, 2014 1:56 pm

    The great service you provide Paul Homewood is to bring empirics into an area of debate (climate) that has so much obfuscation in it – or indeed unadulterated mis-information. Thank you.

    I wondered if you had explored earlier rainfall (before 1910) data?

    I seem to remember that the late 19th century had a period of high rainfall in the SE with huge flooding events in the Thames Valley. There might be a good reason why 1910 is a start date in the charts?

    As usual of course the Guardian tells us this was the wettest January for 250 years!!! Very Unlikely I think, but honesty isn’t part of their climate agenda.

Trackbacks

  1. England: How Wet Was January? | The Global Warming Policy Foundation (GWPF)
  2. Weekly Climate and Energy News Roundup | Watts Up With That?

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