On Sun, 7 Sep 2008 at 10:30:58, John Hall
wrote in uk.sci.weather :

FYI, the 'external temperature' readings for the first several weeks of
Jan 1840 :
Max Min
01/01/1840 53 50
02/01/1840 50 40
03/01/1840 49 41
04/01/1840 48 41
05/01/1840 41 36
06/01/1840 38 28
07/01/1840 38 27
08/01/1840 32 20
09/01/1840 32 22
10/01/1840 37 33
11/01/1840 35 31
12/01/1840 39 32
13/01/1840 46 33
14/01/1840 43 38
15/01/1840 50 43
16/01/1840 49 41
17/01/1840 45 40
18/01/1840 44 32
19/01/1840 50 39
20/01/1840 52 41
21/01/1840 53 41
22/01/1840 50 44
23/01/1840 54 40

Are they truly max and min? Earlier you referred to "morning and
evening" readings.

That was for pressure readings - the temperature ones are specifically
listed as max & min.

I don't know if anyone here has access to data from another English
location during this period, to see whether they sound reasonable.

If you have data for the rest of the month as well

I can probably get them.

, you could compare
the mean with the CET figure

Good idea.
--
Paul Hyett, Cheltenham (change 'invalid83261' to 'blueyonder' to email me)