On 19 Jan, 09:09, Paul Hyett wrote:

What is the official way of recording max & mins anyway? Should they
both be read at 9am GMT, and the max ascribed to the previous day,
with
the min to the current day?

Yes - max read at 0900 is 'thrown back' to the previous day (as is
rainfall), the min read at 0900 is entered to the day of reading.

--
Stephen Burt
Stratfield Mortimer, Berskhire