Purbeckview wrote:
Dennis wrote:
How accurate are standard equipment car thermometers ? Mine today, in a Rover 75
at 4PM in SW Wales, was showing 29 degrees, is this likely to be accurate, or
are car thermometers known to over or under record ?
Thanks
--
Teachers & critics, all dance the poot. Are we not men ? We are Devo.

Perhaps you should mount a Stephenson's Screen on your roofrack and put
the thermometer in there

That has been done, believe it or not, in the days before electronic
car thermometers when exploring local temperature differences was a lot
harder and neede much more tenacity. The name escapes me. A very
pleasant and enthusiastic man who trialled his own electronic
thermometer alongside standard kit on his car roof.
He tried it mainly in Dublin if I remember correctly and mentioned it
many years ago at one of our Metsoc meetings in Durham, or was it at an
annual COL meeting?. He has posted on this ng, again many years ago,
and had a very accurate humidity / dew point etc calculator on the web.
He did try to explain the mathematics behind it all. That was lost on
me, but his enthusiasm wasn't.

Best wishes,
Ken
Copley, 253metres asl, nr Barnard Castle, County Durham
http://copley.mysite.orange.co.uk