John Hall wrote:
In article ,
Jonathan Stott writes:
As to be expected during conditions like this, it has been rather cold
in Canterbury for the last week or so.

Here's the last 8/9 days:

AbMin AbMax Mean
11 Dec -3.3C 6.4C 0.7C
12 Dec -4.3C 5.8C -0.7C
13 Dec -1.5C 5.7C 2.9C
14 Dec 2.9C 5.4C 4.0C
15 Dec -0.9C 4.0C 2.5C
16 Dec -3.7C 4.2C 0.2C
17 Dec -3.7C 5.1C 0.7C
18 Dec -4.6C 4.4C 0.3C
19 Dec* -3.9C 2.9C
*to 1455Z

How are you calculating the means? Most of them seem to diverge from the
traditional (min+max)/2.

Daily means are still calculated by integration from 5-minute resolution
data. Monthly means (quoted below) are from an average of (min+max)/2.
On my website I quote both monthly means by integration and (min+max)/2.

There are many arguments for and against the two different methods - I'm
sure someone with more experience can explain better than me! I believe
that the integration method produces a figure much closer to the true
mean but the (min+max)/2 method is traditional and to be used when
comparing historical data.

Mean maximum this month is 8.6C; mean minimum 2.2C; mean 5.4C.

Which I would imagine is close to average.

Mean for Wye (about 10 miles or so to the SW at similar altitude) is
about 5.3C for December.

--
Jonathan Stott
Canterbury Weather: http://www.canterburyweather.co.uk/
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