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Old January 2nd 16, 08:14 AM posted to uk.sci.weather
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Default Wanstead - December 2015

Summary for December 2015

Temperature (°C):
Mean (1 minute) 11.3
Mean (min+max) 10.9
Mean Minimum 8.5
Mean Maximum 13.4
Minimum -0.2 day 31 (0659 on 1st)
Maximum 16.3 day 19
Highest Minimum 13.5 day 26
Lowest Maximum 8.9 day 13
Air frosts 1 (on 1st)

Rainfall (mm):
Total for month 44
Wettest day 5.9 day 30
High rain rate 24.2 day 03
Rain days 19
Dry days 12

Wind (mph):
Highest Gust 22.9 day 21
Average Speed 4.4
Wind Run 3263.2 miles
Gale days 0

Pressure (mb):
Maximum 1033.3 day 09
Minimum 1002.6 day 30

Days with snow falling 0
Days with snow lying at 0900 0

Total hours of sunshine 34.6


Full stats at the usual place: http://wp.me/p2VSmb-10p

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Old January 2nd 16, 08:53 AM posted to uk.sci.weather
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Default Wanstead - December 2015

Hi Scott
The -0.3C min on 1st is not in December and should be allocated to January.
Best wishes
Ken
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Old January 2nd 16, 08:54 AM posted to uk.sci.weather
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Default Wanstead - December 2015

Make that the -0.2C min
Ken
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Old January 3rd 16, 05:39 PM posted to uk.sci.weather
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Default Wanstead - December 2015

On Saturday, 2 January 2016 08:54:07 UTC, Ken Cook wrote:
Make that the -0.2C min
Ken


Thanks, Ken. Is this the only case where stats is any 24hr period must be carried over into the next month?

I've also blogged on the annual stats which reveal that 2015 was the ninth warmest in my local series.

https://wansteadmeteo.wordpress.com/...r-2015-review/

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Old January 3rd 16, 10:50 PM posted to uk.sci.weather
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Default Wanstead - December 2015

On Sunday, 3 January 2016 17:39:27 UTC, Scott W wrote:
On Saturday, 2 January 2016 08:54:07 UTC, Ken Cook wrote:
Make that the -0.2C min
Ken


Thanks, Ken. Is this the only case where stats is any 24hr period must be carried over into the next month?

Hi, Scott,
If you operate as a (09Z-09Z) climate site using MetO rules, procedure is as follows:-
"All readings are displayed against the date they were taken with the exception of the maximum temperature and rainfall which are thrown back to the previous day."
Thus a minimum read at 09Z on 1st is allocated to 1st, but a maximum and rainfall read on 1st is thrown back to the previous day, when the maximum and most of the rainfall is most likely to have occurred.
It has imperfections, but most things do and it's worked for many years.
HTH
Ken



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