Met  Office  Hadley       6.1c      Anomaly      1.4c Provisional to 29th

Metcheck                      6.03c    Anomaly      1.04c

Netweather                   6.48c     Anomaly     1.39c

Peasedown St John      7.22c    Anomaly    2.32c.  

Latest CET tracker for December shows a finishing number of 6.27C.

The CET mean for tomorrow (NYE) could get above 13C. The date record for 31 Dec is 11.1C set in 1859 so we will easily beat that. The all time December daily CET mean record is 13.1C set on 19 December 2015. We could get close to that tomorrow.

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Highest temperature today was Cambridge NIAB at 15.6C

Yesterday was Exeter AP at 15.7C

Both days have a date record of 16.1C so we were fairly close.

Tomorrow the date record is only 15.6C so a very good chance it will be broken.

Met Office Hadley        6.3c       Anomaly       1.6c provisional to 30th

Metcheck                     6.26c    Anomaly        1.27c

Netweather                  6.72c    Anomaly        1.63c

Peasedown St John     7.02c     Anomaly       2.12c. 

Highest temperature today was Cambridge NIAB at 15.6C

Yesterday was Exeter AP at 15.7C

Both days have a date record of 16.1C so we were fairly close.

Tomorrow the date record is only 15.6C so a very good chance it will be broken.

I’m PMing my January guess!

Highest temperature today was Cambridge NIAB at 15.6C

Yesterday was Exeter AP at 15.7C

Both days have a date record of 16.1C so we were fairly close.

Tomorrow the date record is only 15.6C so a very good chance it will be broken.

Just stickied the January CET for you Simon.

 

Just stickied the January CET for you Simon.

Highest temperature today was Cambridge NIAB at 15.6C

Yesterday was Exeter AP at 15.7C

Both days have a date record of 16.1C so we were fairly close.

Tomorrow the date record is only 15.6C so a very good chance it will be broken.

So was that wrong on the BBC News last night when they said the date record for New Year's Eve was 14.8C somewhere in Wales?

So was that wrong on the BBC News last night when they said the date record for New Year's Eve was 14.8C somewhere in Wales?

The record was 14.8C. The higher one mentioned by GW is old data, for whatever reason it's no longer considered relevant.

At least the new record (15.8, but I wouldn't be surprised to see higher after the 18z SYNOP reports) is non-contentious!

I'd have nailed this one if that cold spell had materialised.

Missed this one out by miles - went for 4.75C ended up over 6.0C

Final December CET was 6.36C

https://hadleyserver.metoffice.gov.uk/hadcet/cet_mean_2021

What was the 2021 Cet?

Hadley has 10.26C  https://hadleyserver.metoffice.gov.uk/hadcet/cetml1659on.dat

I think that means I win the annual CET competition as I predicted 10.32C!

You were second with 10.10C.

Here is a reminder of the predictions

Chart 1

 

Hadley has 10.26C  https://hadleyserver.metoffice.gov.uk/hadcet/cetml1659on.dat

I think that means I win the annual CET competition as I predicted 10.32C!

You were second with 10.10C.

Here is a reminder of the predictions

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Chart 1

 

Congratulations on your annual prediction 👍🏼
I was looking good after Day 10 in December then it all went a bit mild 😂

Coldest year since 2013 thanks to a cold spring. 

Final December CET was 6.36C

https://hadleyserver.metoffice.gov.uk/hadcet/cet_mean_2021

 

Hadley has 10.26C  https://hadleyserver.metoffice.gov.uk/hadcet/cetml1659on.dat

I think that means I win the annual CET competition as I predicted 10.32C!

You were second with 10.10C.

Here is a reminder of the predictions

IMAGE. Members enable at bottom of page

Chart 1

 

Here are the charts for December

The minimum CET was over 2C above average although only the 16th warmest on record.

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Here are the annual charts

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Annual CET competition - year-end update

Firstly congratulations to marting for winning the December competition with an error of just 0.04C.

In the annual table there is no change at the top this month. In the end Spring Sun Winter Dread is a comfortable winner by just over 1C. Saint Snow finishes second and Bolty third.

Grandad props up the table this year with an error of 20.02C.

Link to full size table

This table shows all the monthly prediction errors and positions of everyone in the final table. Yellow highlight indicates a prediction error of <0.5C and orange highlight indicates a missed prediction.

Table 2

Here are the charts for December

As expected 31 Dec saw the highest Hadley CET mean on record for any December date since 1659. Mean CET was 13.2C. Previous highest was 13.1C on 19 Dec 2015.

The minimum CET was over 2C above average although only the 16th warmest on record.

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Chart 1

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Chart 2

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Chart 3

Is that right ?

I thought I saw 12.9 when I went into the MetO database