On Sat, 9 Jan 2016 09:27:46 -0000
"Eskimo Will" wrote:


"Trevor Harley" wrote in message
...
There seems to be some confusion (well at least I'm confused) about
just how warm January was.

Some reliable sites are giving a mean of 7.9C, e.g.

http://www.bbc.co.uk/weather/feeds/35234711

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

but they do talk about the "UK mean", which I've never heard
mentioned before, and if I have, I always assumed they just meant
the CET temperature (which is a bit like PIN number I know).

On the other hand other pages give a CET of 9.7C:

http://www.metoffice.gov.uk/hadobs/h..._mean2015.html

which is ridiculously high. I at first assumed it was a typo for
7.9, but others are assuring me not.

Anyway in the know like to clarify it for me please?


The MetO calculate regional and UK means using the scanned/digitised
records right back to 1910. Why 1910 - haven't a clue, but I suspect
it is as far back as the funding allowed them to do it. The CET is a
totally different animal.


The digital record is still being added to and will be extended further
back:

http://blog.metoffice.gov.uk/2016/01...across-the-uk/

I recall that when I first moved to the Marine Division at Bracknell in
1965 records of weather and ocean currents from ships log books were
already being digitised. Many of these books dated from the 19th
century.


--
Graham P Davis, Bracknell, Berks. [Retd meteorologist/programmer]
http://www.scarlet-jade.com/
I wear the cheese. It does not wear me.
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