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Gianna · May 2nd 07, 04:53 PM posted to uk.sci.weather

wrote:

I'm looking to set up a weather station, but due to commitments would
only be able to take recordings at 10pm each evening. So if my 24 hour
climatological day ended at 10pm each evening, would this make my
observations any different/ less accurate/ less reliable than by using
the usual 6-6 climatological day?

I'd appreciate it if someone could let me know. I realise it could be
a very silly question.....

But it isn't, really.
As I understand it, the usual 'day' is 0900-0900 UT (not 6-6).

An obvious problem you might have is with rainfall.
Your 'day' would be different so might not be directly comparable with someone
else's 'day' (for a given date). But if you only want to compare with your own
data, than that would not matter.
With temperatures, you might be able to assign your min. and max. to the
'correct' day, even if recording them at 2200.

As someone else has mentioned, consistency is the thing, so 2200 UT means 2200
UT, not 2200 UT in the winter and 2200 BST in the summer.

HTH

--
Gianna

http://www.buchan-meteo.org.uk
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