Chilly nights here and days have not been particularly warm - highest so far 17C on the 10th.
Mean is 7.9C (+0.1C) so far

Met Office Hadley       9.6c.    Anomaly     2.5c.  Provisional  to 16th.

Metcheck                   9.28c.  Anomaly     1.27c.

N-W                           10.4c.  Anomaly     1.95c.

Mount      Sorrel         9.8c.   Anomaly     1.7c.  

Clevedon Weather      10.9c.  Anomaly    0.3c.

My Mean                    11.1c.  Anomaly    2.3c.   

Met Office Hadley        9.6c.      Anomaly      2.4c.   Provisional to  17th.

Metcheck                    9.20c.    Anomaly      1.18c.

N- W                           10.4c.    Anomaly      1.95c.

Mount Sorrel               9.6c.      Anomaly      1.5c.

Clevedon  Weather      10.9c.    Anomaly       0.3c.

My    Mean                  11.0c.   Anomaly       2.2c.     

SLIGHT REDUCTION TODAY.

Met Office Hadley       9.6c.       Anomaly       2.3c.   Provisional to   18th.

Metcheck                   9.12c.     Anomaly       1.10c.

N -  W                        10.0c.     Anomaly       1.91c.

Mount Sorrel              9.6c.      Anomaly        1.5c.

Clevedon  Weather     10.9c.     Anomaly        0.2c 

My     Mean               11.0c.     Anomaly        2.2c.

The cold finish on the GFS - coupled with a couple of chilly nights to kick off this coming week - proves enough to totally wipe out the positive anomaly in the CET by month's end based on my estimate. Imagine that! 

GFS is pretty extreme, with ECM suggesting a tamer and in many ways more believable version of events tonight.

A finish between 9.0*C and 9.5*C seems a good bet at the moment.

Met Office Hadley        9.5c.      Anomaly      2.1c.    Provisional to 19th.

Metcheck                   8.99c.     Anomaly      0.97c.

N - W                         9.88c.     Anomaly      1.79c.

Mount    Sorrel           9.1c        Anomaly      1.0c.

Clevedon  Weather     10.8c.     Anomaly       0.4c.

My      Mean              10.8c.      Anomaly      2.0c.

7.5C (-0.3) here now, edging down if anything with ground frosts most nights 

Met Office Hadley      9.4c.       Anomaly       2.0c.    Provisional to 20th.

Metcheck                  9.02c.     Anomaly       1.00c.

N-W                         9.86c.     Anomaly       1.77c.

Mount    Sorrel          9.5c.      Anomaly        1.4c.   

Clevedon Weather     10.9c.    Anomaly        0.3c.

My   Mean                10.8c.    Anomaly        2.0c.            

Met Office Hadley         9.5c.       Anomaly     2.0c.  Provisional to 21st.

Metcheck                     9.08c.     Anomaly     1.06c.

N-W                             9.92c.     Anomaly     1.83c.

Mount  Sorrel               9.6c.      Anomaly      1.5c.

Clevedon Weather       11.0c.     Anomaly      0.1c.

My Mean                     10.9c.    Anomaly      2.1c                     

Met Office Hadley         9.5c.    Anomaly       2.0c.     Provisional to 22nd.

Metcheck                     9.10c.  Anomaly       1.09c.

N-W                             9.95c.   Anomaly      1.86c.

Mount  Sorrel               9.5c.    Anomaly       1.4c.

Clevedon Weather        11.1c.   Anomaly       0.0c.

My     Mean                  10.9c.  anomaly       2.1c.

Met Office Hadley        9.6c.        Anomaly    2.0c.   Provisional to 23rd.

Metcheck                    9.13c.      Anomaly    1.15c.

N-W                            9.99c.      Anomaly    1.9c.

Mount Sorrel               9.7c.        Anomaly    1.6c.

Clevedon   Weather     11.1c       Anomaly    0.0c.

My  Mean                    10.9c.      Anomaly    2.1c.

It looks like it's probably reached its peak and should steady off from today, although overnight temps were fairly mild. 

If the models carry on as they are, they'll cause us some headaches for the May competition, although I can never bring myself to have confidence in them beyond 5 days.  I just think weather is affected by more variables than are input to models, so we don't quite get it right and the few times when they are right with longer range, is more down to luck.  More often than not, the output tempers within my five day confidence slot but I may eat my words in a couple of weeks. 

Met Office Hadley        9.6c.     Anomaly     2.0c.  Provisional to 24th.

Metcheck                   9.31c.    Anomaly     1.29c.

N-W                           10.o6c.   Anomaly     1.97c.

Mount Sorrel              9.9c.      Anomaly     1.8c.

Clevedon Weather      11.2c.    Anomaly     0.1c.

My Mean                   10.9c.     Anomaly     2.8c. 

Looks like the CET is going to take a fair bit of a fall till the end of month, a final value around 8.9C would be my guess.

My CET estimate is currently running about 0.3C below that of Hadley so we may see a reasonably significant downward adjustment this month due to the chilly nights.

What has made this month feel pleasantly warm is the significant amount of sunshine and very warm daytime temperatures. The Hadley maximum CET is currently running 3.2C above the 1961-1990 mean whereas the minimum is only 0.9C above the long run mean.

I am currently estimating the CET to finish close to exactly 9C.

Wow, after all the sun and warm days down here (in my part of Devon its already dry enough that the grass is suffering in dryer places) I might only be .3C out . Bet it buckets down in May....

Met office Hadley     9.7c    Anomaly    2.0c. Provisional to 25th

Metcheck                9.30c.  Anomaly    1.28c.

N-W                      10.13c.   Anomaly   2.04c.

Mount Sorrel            9.8c.    Anomaly   1.7c.

Clevedon Weather    11.1c.   Anomaly   0.0c.

My     Mean             11.0c.    Anomaly   2.2c.

I don't know about other areas but last night was mild here and today has been warm and sunny, so our local mean won't have fallen and although it feels like the CET should be higher because of the high daytime temps, we've had a lot of frosts at night that would bring down the daily mean.

I still think we'll finish the month at 9.2c. 

Met Office Hadley     9.6c.     Anomaly     1.9c.   Provisional  to  26th.

Metcheck                 9.19c.   Anomaly     1.17c.

N - W                      10.7c.    Anomaly      1.98c.

Mount Sorrel            9.7c.     Anomaly      1.60c.

Clevedon  Weather   11.0c.   Anomaly       0.1c.

My  Mean                10.9c.    Anomaly      2.1c.

7.7C (-0.2C) here, not a warm month.

Met Office Hadley     9.5c.     Anomaly      1.7c.     Provisional to   27th

Metcheck                 9.10c.    Anomaly     1.08c.

N=W               Not available

Mount Sorrel            9.6c.      Anomaly     1.5c.

Clevedon Weather   10.9c.     Anomaly     0.2c.

My  Mean               10.8c.     Anomaly     2.0c.

My Annual               6.6c       Anomaly    0.9c.          

I was expecting more of a cooler decline