Coldest start to May since 1996 here, with a dreadful mean max of 9.4C so far Feels even colder as I don't recall 1996 being so dismally dull and windy as well.

Colder than Christmas with the last week of December 2018 having recorded an average high of 10.4C and significantly colder than 12th to 27th February which averaged 12.2C. We haven't even had one day that warm so far this month.

All concept of seasonality appears lost. At least with horrible cold Mays of the 60s, in particular 1962, 1965, 1968 and 1969 there had been proper winters beforehand and not just the same temperatures constantly for over half the year  

Message to 06:00 This morning.  

From enquires@metoffice.gov.UK

We were aware that the HadCET data-sets had been failing to update since  27 April. I wish to point out that these services are not operational and are maintained on a best-endeavors basis.

On this occasion, rather ironically, a hardware update led to unexpected problems.

The CET has now been recovered and is up to date. Thanks. Tim.

TIM LEGG  National Climate Information Center (NCIC)

Edited by user 09 May 2019 11:43:34(UTC)  | Reason: Not specified

Met office Hadley          8.9c        Anomaly       -1.2c. Provisional to 9th.

Metcheck                      8.58c       Anomaly      -2.35c

Netweather                   8.98c       Anomaly      -2.53c

Of My 10 stations          9.48c       Difference    -2.54c.   

Originally Posted by: Global Warming

Latest output suggest the CET will still be below the 1981-2010 mean by the 25th. If the warmer weather does stick around until the end of the month a final CET of 12C is still quite possible. But equally if we don't see much warmth then something close to 11C is more likely.

Hadley is currently running 0.36C above my estim

Well I went for 12.27C so it obviously needs to warm up soon and indeed warm up consistently. A general warm up next week is pretty much nailed on but as you allude to, the warmth really needs to continue to the end of the month to get into the 12s.

Looks like I'm in with a chance here for a good score. I went for 11.5C

It's been a much cooler May so far than many of us were expecting.

Met Office Hadley         9.1c.       Anomaly      -1.3c. Provisional to 12th.

Metcheck                      8.77c      Anomaly      -2.63c

Netweather                   9.2c        Anomaly      -2.11c

Mean of my 10              9.8c.       Anomaly      -2.22c.

Forest Town Mansfield    10.0c      Anomaly      -2.85c. 

Met Office Hadley         9.5c.     Anomaly       -1.0c. Provisional to 14th.

Metcheck                      9.21c     Anomaly      -2.20c.

Netweather                   9.69c     Anomaly      -1.62c.

Mean  of my 10 stations   10.54c.   Anomaly   -1.48c.

Hmmm!  After a cool first half, we need some really warm days in the second half of the month to take us above average.