https://www.theweatheroutlook.com/twodata/cet-tracker.aspx 

I don't find it surprising - it is anthropogenic climate change. Sea surface temperature anomalies around the UK are also way above normal.

This is the new climate when what people call 'cold' is now what we used to think of as mild. And, it will just keep getting warmer if CO2 keeps increasing. Meanwhile the nation is focused on some relative trivia or other.

Metcheck        13.74c        Anomaly     2.32c

Netweather     14.14c        Anomaly     2.85c

Peasedsown St John  14.1c    Anomaly   2.83c.

14.1 to the 29th

2.9c above the 61 to 90 average

2.5c above the 81 to 10 average

Been looking for it. Haven't seen it yet.  🙂 

Metcheck                   13.70c            Anomaly            2.29c

Netweather                14.13c            Anomaly            2.84c

Peasedown St John     13.66c           Anomaly            1.36c.

14.1 to the 30th

3.0c above the 61 to 90 average

2.5c above the 81 to 10 average

In my local area of NE Dorset / W Hampshire for example, underestimation frequencies, when rounded to nearest whole, for GFS at 4 days lead time, across 1st-30th May:

5°C: 2 for daily min, 1 for daily max

4°C: 3 for daily min, 6 for daily max

3°C: 1 for daily min, 8 for daily max

2°C: 3 for daily min, 3 for daily max

Some serious errors in there and often it's not been a lot better at shorter lead times, typically 1-2°C closer if it was a large error to begin with, otherwise little to no improvement.

It's a similar, though perhaps less pronounced, story for the CET region, which only adds to the difficulties estimating its final outcome a month in advance. The highest any late April GFS run reached for mid-month was 13.5°C, while the actual was 14.3°C. The 12z of 30th April had a mere 10.2°C for mid-month and no I'm not kidding!

Anyway, it's been a surprisingly warm month and then some! To be honest I'm just glad I went the right side of average 😂

Spot on, I'd say. GFS had this area pegged at 13C for today, sticking with it right 'til the last minute - and so far it's hit 15.3. The old MetO automated was similarly poor, but at least the new model they're using is closer to reality - it seems to have bumped highs by around 2C compared to the old model. 13C, a good 5 or 6 below average, would have been noteworthy... even if the same in the other direction, 24 or 25, wouldn't have been.

I can only agree that the record warm SSTs are throwing a spanner in the works. Kent is a peninsula, of course, so it's no surprise to see such errors here!

https://climatereanalyzer.org/clim/sst_daily/ 

Last year saw record highs, of course, by a whopping margin... and we're as much above that again this year. It's utterly bonkers, but gets very little media attention - we just see people moaning on social media about how cold it is, how climate change is a myth, etc, etc.

1788, 1808 and 1848 each had 2 sub-10 days and the marvellous 1992 had 8 days.

If you add 2C to the average max and min you end up with record warm months, but you won't notice if it's 16C instead of 14C, and 10C instead of 8C at night.

(yes I appreciate milder nights have contributed to this particular warm May, but a higher baseline will give you way above average months in the absence of heatwaves)

14.07 for the sake of the competition

Yes, strange how we have already got used to these record breaking months - just seemed like a wetter than average May to me with no exceptional warmth to speak of

Both months were more notable for the absence of any cool /below average spells more than anything else 

I will post the results this evening, when I have finished work. as mentioned before we were all to low by over 0.5c. 

Justin