There is a trend, but not really what you would expect. Monthly CET temps
for winter months are generally going up across the board. This has to do
with possible changes in atmospheric circulation ( See Philip Eden's posting
{ February 1951-200 Synoptic Climatology } ).

Some non winter and non summer months are showing a negative trend, while
there is no real change to high summer CET's. Yes the summers have been
warmer recently, but there is a cycle all the way through the CET data,
where there are groups of warmer summers. I don't really understand why
this is or what may cause such a thing to happen. I have also noticed,
looking at a colour gradiated version of the MO's CET data that warmer
winters tend to bunch up in groups too! Again, I don't know why.

Shaun Pudwell.


"TudorHgh" wrote in message
...
Well contrary to popular belief, colder climate regimes are stormier and
have wilder temperature swings, "Little Ice Age" of which 1779 was a
part of. Warmer climates regimes are generally less stormy, mainly
because
the temperature differential between the poles and the equator is
somewhat
less.

About time this point was made because it has relevance to global
warming.
No doubt about the world being a considerably warmer place than it was
(whatever the cause) but why it should lead to greater storminess is not
obvious. But has the year-to-year variability of monthly CET changed? A
statistical test may provide the answer and shouldn't be too difficult to
perform.

Tudor Hughes, Warlingham, Surrey.