Love the chart Dave - thank you!

Is there any chance that you could add the November CET average to it? It's always interesting to see who's gone above and below and by how much.

I was trying to find that on the MetO site but only found the data tables, so was taking a bit of time to work from that. Based on 1992 - 2021 avg I make it 7.33 for November, chart showing that below (as Saint says, only 3 of us brave/daft enough to go colder than average!). 

Link to larger chart

Edit: Looking at the November numbers for the last 30, 30 and 10 years and the last decade averages the same as the 30 year average, so no strong warming signal. December on the other hand has warmed and has been generally mild or very mild since 2010.

I'd like to say that informed my speculative guess but as I only got the CET data a couple of hours ago it really didn't

Metcheck                   10.54c              Anomaly        3.62c

Netweather                11.41c              Anomaly       4.52c

Peasedown St John    10.38c              Anomaly       3.54c.   

December has actually been milder than November surprisingly often recently
2013, 2015, 2016

 

And prior to that, since 1970:

88 85 74 71

So an interesting 25 year gap 1988-2013 but 4/18 years before that.

Truth is, they're all unusual if we consider December/ November's average temps long term.

Metcheck                      9.49c                Anomaly               2.54c

Netwather                    10.8c                Anomaly               3.91c

Peasedown St John         9.33c               Anomaly                2.49c.  

Metcheck                      9.49c                Anomaly               2.54c

Netwather                    10.8c                Anomaly               3.91c

Peasedown St John         9.33c               Anomaly                2.49c.  

and Met Office CET 10.7C to 3rd Nov (Anom +4.3C 1961-90)

https://www.metoffice.gov.uk/hadobs/hadcet/data/cet_mean_2022.txt

 

and Met Office CET 10.7C to 3rd Nov (Anom +4.3C 1961-90)

https://www.metoffice.gov.uk/hadobs/hadcet/data/cet_mean_2022.txt

Record year target now -0.43C. It should start plummeting into deep negative territory soon.

You mentioned the record 12 month period from back in 2006/7 was 11.6C I think. I might try some calcs to see what we'd need by way of anomaly to beat that. This Jan was "only" +0.8C so the 12m from Feb 22 to Jan 23 might be in the running if it's a warm winter.  

Metcheck                       9.21c              Anomaly         2.2c

Netweather                    9.98c              Anomaly         3.09c

Peaswdown St John         8.45c             Anomaly          2.61c.

Metcheck                       9.31c           Anomaly          2.39c

Netweather                    10.0c           Anomaly          3.11c 

Peasedown St John        10.37c          Anomaly          3.99c.

Mount Sorrel                  9.4c             Anomaly          2.5c..

It's looking increasingly likely that we'll see a gradual cool down after this week's very mild spell. Generally unsettled though so night temperatures unlikely to be especially low. However, I think the chances of a very mild November overall (i.e. 1.5C greater than the 1991-2020 average) are diminishing.

Metcheck              9.44c             Anomaly          2.51c

Netweather           10.07c           Anomaly           3.18c

Peasedown St John   9.1c             Anomaly           2.3c.

Mount Sorrel     9.41c            Anomaly         2.5c. 

Metcheck              9.94c            Anomaly       3.02c

Netweather           10.44c          Anomaly        3.55c.

Peasedown st John   9.7c           Anomaly        3.94c.

Mount Sorrel 9.7c.    Anomaly   3.39c

Chineman Hampshire 10.8c.  

Metcheck               10.1c              Anomaly          1.09c

Netweather            10.64c            Anomaly           3.75c

Peasedown St John    10.5c             Anomaly           3.67c.

Mount Sorrel    10.4c   Anomaly    3.1c.

Chineman Hampshire   10.8c.

Metcheck           10.10c.             Anomaly           3.18c

Netweather        10.67c              Anomaly           3.78c

Peasedown St John  9.33c          Anomaly           2.95c.

Mount Sorrel  10.10c       Anomaly       3.2c.