The daily mean CET for 30th March was 15.1C
This is a CET record mean for any March day going back to 1772
There have been a few higher CET maxima than the 19.2C recorded on that day but they all had much lower minima thus ensuring the CET mean took the record by 0.3C
It is quite a remarkable figure particularly when you consider there have only ever previously been 3 days in March when the CET mean has exceeded 14C, two of which were way back in 1777.
Warmest March daily CET means:
15.1C 30/3/2017
14.8C 27/3/1777
14.6C 26/3/1777
14.1C 18/3/1990
The first date on which the 1981-2010 CET mean exceeds 15C is 19 June with a figure of 15.2C. So the temperature on 30 March was more typical of mid June rather than late March.
The CET minimum on 30 March of 11.0C was the second warmest on record for any date in March after 11.2C on 30 March 1998. The 10.7C recorded on 31 March was the third warmest on record for March after 10.9C on 27 March 2006. In fact 8 of top 9 warmest CET minimums in March have occurred since 1981 and 7 since 1998.
Warmest CET minimums in March:
11.2C 30/3/1998
11.0C 30/3/2017
10.9C 27/3/2006
10.7C 31/3/2017
10.4C 22/3/1927
10.4C 17/3/2005
10.3C 09/3/2000
10.1C 11/3/1981
10.0C 08/3/2000