"John Hall" wrote :
Colin Youngs writes:

"Bournemouth warmest and coldest: 15.8°C / -0.4°C"

It must be very rare for the same place to be both warmest and coldest.
I suppose that when figures are in from all stations, that may bo longer
be the case. Nevertheless it would be interesting to know if it has ever
happened before.
--
I think it does happen from time to time, notably at frost-hollow
sites which also tend to be sun-traps during the daytime. We should,
of course, remember that this site is Hurn which, as Martin and
others will tell us, is very different from most of Bournemouth.

Philip