December Mean Temperatures

[stephenprudence]

The air temperature is stable now as of the 31st of December so I can put down my mean temperatures as I'm not using 5 minute data outputs.

So for December 2011:

Mean Max: 9.2C
Mean Min: 5.2C
Mean Overall: 7.2C (+2.1C above the 71-00 CET mean)

Highest daytime temperature in December: 15.1C (26th)
Lowest daytime temperature in December: 2.6C (16th)

Highest night-time temperature in December: 12.3C (26th)
Lowest night-time temperature in December: 0.8C (16th)

Rainfall: 124mm (208% of average)
Rainfall Days: 24
Snowfall Days: 1
Maximum snowfall depth: 0.2cm

Air frost: 0
Ground frost: 1
--------------------------------------
Temperature Frequency Table:

Maximum Temperatures;

0-5C = 1 day
5-10C = 18 days
10-15C = 11 days
15-20C = 1 day

Minimum Temperature;

0-5C = 14 days
5-10C = 17 days

[Yorkshire Kris]

Surely you can't this till after midnight? I mean the temps could drop now before midnight. Last night was very mild so you lowest temp for today might come in the next few hours??

[stephenprudence]

Surely you can't this till after midnight? I mean the temps could drop now before midnight. Last night was very mild so you lowest temp for today might come in the next few hours??

They wont drop below 10C before midnight, I've checked out the METARS, TAFS everything, and I'm confident I can do it now.

My lowest temperature last night was 10.2C, it is currently 12C.. it is not forecast to drop until the early hours.

Rainfall is preliminary, but everything else stands.

[Yorkshire Kris]

Mean Max: 7.5
Mean Min: 2.6
Mean Overall: 5.1

Highest daytime temperature in December: 13.6
Lowest daytime temperature in December: 2.7

Highest night-time temperature in December: 10.0
Lowest night-time temperature in December: -3.0

[Yorkshire Kris]

I've been much colder than you Stephen in December. This raises a question of probe placement. I have my sensor n the coldest part of the garden that doesn't warm up much in the day time. So is this the best place?

[Exotic Life]

The first frostfree december here since I start recording, even 2006 had one frost. My summer budding is still flowering, and the spring bulbs are above the ground again. Great first winter month!

Mean Max: 9.2C
Mean Min: 5.1C
Mean Overall: 7.2C

Highest daytime temperature in December: 13.0C (3th)
Lowest daytime temperature in December: 5.8C (19th)

Highest night-time temperature in December: 11.1C (31th)
Lowest night-time temperature in December: 1.4C (19th)

Rainfall: 163mm (Almost 2,5 time my average//wettest december since I'm recording)
Rainfall Days: 24
Snowfall Days: 0
Air frost: 0

[Exotic Life]

Stephen,

Does the UK got his 81-10 averages already? Quite curious because I still see you using the old averages. Here they use the new ones already since last March.

Robbin

[stephenprudence]

Yers 80-10 is available but is not utilised by the Met-office yet.. I'm not comfortable with take this yet, but will gradually start to use it.

[Exotic Life]

If it's open for public please let me know, I'm quite curious how the averages around the UK would be.

[Conifers]

If I know the met office, I'd bet it's available, for a purely nominal access fee of £80,000 per data item

[Dave Brown]

Most of my nearby weather stations seem to have been closed or moved, so I'm not sure there will be any 81-10 relevant data to be had.

[Yorkshire Kris]

What's 80 10 averages?

[Conifers]

What's 80 10 averages?

Medium term 30-year average from 1980 (properly 1981, as Robbin originally said) to 2010

[stephenprudence]

yep 81-10*

[Yorkshire Kris]

Cheers