Mornin' all. Do most on here record their monthly records as the
easily defined 00.00 on 1st of the month to 23.59 on last day of the
month? How does it work when your meteorological day goes from 09z -
09z - the traditional method. The last 'day' of the month would be
this morning?

On 01/11/2012 09:19, Scott W wrote:
Mornin' all. Do most on here record their monthly records as the
easily defined 00.00 on 1st of the month to 23.59 on last day of the
month? How does it work when your meteorological day goes from 09z -
09z - the traditional method. The last 'day' of the month would be
this morning?

.... I stick with 09-09 as I don't have auto-recording equipment and I'm
not getting up at midnight!

As for this month, 19.3 mm in the 24hr to 09Z this morning, but the bulk
of that had fallen before I went to bed at 2200Z, so it won't
significantly 'skew' the rainfall figures this time around. However I do
accept that the 09-09 practice does lead to significant anomalies ...
but then so does the 00-24 system.

Martin.


--
West Moors / East Dorset
Lat: 50deg 49.25'N, Long: 01deg 53.05'W
Height (amsl): 17 m (56 feet)
COL category: C1 overall

Scott W wrote:

Mornin' all. Do most on here record their monthly records as the
easily defined 00.00 on 1st of the month to 23.59 on last day of the
month? How does it work when your meteorological day goes from 09z -
09z - the traditional method. The last 'day' of the month would be
this morning?

The "official" climatological month of October ends at 0900z today. Having the
month end at 2359z on the 31st only works if all your data come from an AWS.
That may be OK for temperature but AWS raingauges at the cheaper end of the
market tend not to be very reliable for one reason or another. My Davis VP
averages around 15% less that the standard 5" manual gauge so I wouldn't use it
for record-keeping purposes..........And there's no way that I'm going to do a
manual measurement at midnight every day! My daily and monthly figures are for
periods ending 0900z.

--
Norman Lynagh
Tideswell, Derbyshire
303m a.s.l.

That overnight rain will throw a lot of the October stats into some
confusion methinks .
I clocked up 16.2mm ovenight which I regard as November rain ,but officially
that should be an October
"total,
Lies, damn lies ,and statistics......

RONb


Scott W" wrote in message
...
Mornin' all. Do most on here record their monthly records as the
easily defined 00.00 on 1st of the month to 23.59 on last day of the
month? How does it work when your meteorological day goes from 09z -
09z - the traditional method. The last 'day' of the month would be
this morning?

ron button wrote:

That overnight rain will throw a lot of the October stats into some confusion
methinks . I clocked up 16.2mm ovenight which I regard as November rain ,but
officially that should be an October "total,
Lies, damn lies ,and statistics......

RONb


To enable comparison to be made with "official" measurements, both current and
historical, anything that fell up to 0900z today should be counted as October
rain. There really isn't any confusion. It may not be 'neat and tidy' but
that's the way it is.

--
Norman Lynagh
Tideswell, Derbyshire
303m a.s.l.

Scott W wrote:
Mornin' all. Do most on here record their monthly records as the
easily defined 00.00 on 1st of the month to 23.59 on last day of the
month? How does it work when your meteorological day goes from 09z -
09z - the traditional method. The last 'day' of the month would be
this morning?
-------------------------------
I'd stick to 00-00 if I were you. It's much more straightforward with
your AWS and unless you tend to submit them as formal records they will
be more than adequate. The biggest errors anyway will come from the site
location most probably. You have one advantage over these expensive
stations in that with Cumulus you have calibration factors available so
you can calibrate your rain gauge against a standard one. They will
still differ a bit though depending on the "type" of rain.
How's the website coming along?

"Dave Cornwell" wrote in message
...
Scott W wrote:
Mornin' all. Do most on here record their monthly records as the
easily defined 00.00 on 1st of the month to 23.59 on last day of the
month? How does it work when your meteorological day goes from 09z -
09z - the traditional method. The last 'day' of the month would be
this morning?
-------------------------------
I'd stick to 00-00 if I were you. It's much more straightforward with your
AWS and unless you tend to submit them as formal records they will be more
than adequate. The biggest errors anyway will come from the site location
most probably. You have one advantage over these expensive stations in
that with Cumulus you have calibration factors available so
But with Cumulus you can set your day start/end point as 09z. That way you
still get to compare with official formal records with no effort on your
part.
--
Freddie
Bayston Hill
Shropshire
102m AMSL
http://www.hosiene.co.uk/weather/
https://twitter.com/#!/BaystonHillWx for hourly reports

On Nov 1, 4:48*pm, Dave Cornwell wrote:
Scott W wrote:
Mornin' all. Do most on here record their monthly records as the
easily defined 00.00 on 1st of the month to 23.59 on last day of the
month? How does it work when your meteorological day goes from 09z -
09z - the traditional method. The last 'day' of the month would be
this morning?

-------------------------------
I'd stick to 00-00 if I were you. It's much more straightforward with
your AWS and unless you tend to submit them as formal records they will
be more than adequate. The biggest errors anyway will come from the site
location most probably. You have one advantage over these expensive
stations in that with Cumulus you have calibration factors available so
you can calibrate your rain gauge against a standard one. They will
still differ a bit though depending on the "type" of rain.
How's the website coming along?

I intended to get the site up this week - but the half term taxi
service has put paid to that. I'm pretty sure I have everything in
place - it's just a matter of finding a free couple of hours...
As for the records being a bit of a traditionalist and because my
record-keeping stretches back well before AWS days I'll stick to 09-09
- having managed to gear up Cumulus to do so...

On Nov 1, 9:20*am, Scott W wrote:
Mornin' all. Do most on here record their monthly records as the
easily defined 00.00 on 1st of the month to 23.59 on last day of the
month? How does it work when your meteorological day goes from 09z -
09z - the traditional method. The last 'day' of the month would be
this morning?

My obs are manual.
My last weather ob for October was at 1800 on 31st Oct.
I am not going to lose any sleep over that.

The division of the climate record into months is pretty silly anyway.
But we all do it.
The months do not even have the same number of days in them.

Len Wood
Wembury, SW Devon