John Hall wrote:

In article ,
John Mackenzie writes:
Key Measurements and Anomolies Summary
Average Outside Temperature 5.65 °C ( 194.8% )
snip

Thanks for the stats. What's the 194.8% a percentage of? If you're
just dividing one temperature in degrees Celsius by another (the
long-term mean), then I'd argue that it isn't very meaningful, as by
making 0C the baseline it gives it a spurious significance. It's not
like rainfall or sunshine, where zero really is the lowest value
possible. --
John Hall
"Banking was conceived in iniquity and born in sin"

Sir Josiah Stamp, a former president of the Bank of
England

Thanks for the advice John. Yes it did look a bit strange and elicited
a sceptical comment from my wife too! The historic mean value for
January that it was based on is 2.9C. I think what you are saying is
that it only makes sense to show the anomoly as the difference, i.e.
2.75C higher?
Regards, John

--
....Cruden Bay, Aberdeenshire
http://www.crudenbayweather.org.uk