That's interesting. I recorded a max of just 5.0C here in Exwick, a few
miles south of you, with a full day's sun. Hoar frost persisted all day in
the shade on the grass after a min of -3.1C. I am on an east-facing hill,
losing the sun pretty early this time of year - and with flat calm
conditions, it could well have been a couple of degrees warmer on the other
side of the Exe Valley.

Dropped quickly to -0.1C by 17Z last night, but then rose and oscillated
between zero and PS02 overnight beneath a moth-eaten SC layer. Already 5.7C
now, and with a few knots of wind to mix things up, I expect a max of around
8C assuming it remains sunny..

Cheers,

Paul

"Nick G" wrote in message
...
My temperatures had a 'hump' today too! The temperature was rising
steadily by about 1.0C an hour until 14:00 when the temperature jumped
from 7.5C to 9.7C in 30 minutes, over double the previous warming rate. I
can discount the effects of the sun shining on the screen as it remains in
shadow all day at this time of year.
________________
Nick G
Exe Valley, Devon
50 m amsl

"Jonathan Stott" wrote in message
...
Just looking at the charts of my data for the last two days and noticed
that at almost the same time on both days there's a noticeable (around
1C) increase of temperature just as the temperature peaks at 1:45pm.

You can see the charts he
http://www.canterburyweather.co.uk/d...h=11&year=2005
http://www.canterburyweather.co.uk/d...h=11&year=2005

Any explanation as to what this might be? Is it just coincidence or is it
something to do with my equipment setup or exposure?

It might be nothing, but it caught my attention!

Jonathan
Canterbury, Kent