Will be a close run thing as to whether it's the warmest September since 2006 or just 2011.
Need to beat 15.1 for us to beat September 2011 and have the warmest September for 8 years.
Amazing how far below September 2006 we're going to be though - That was an incredible month. Think it will be a long time before we beat that month.
It was the overnight minimums that were the main reason why the CET for September 2006 was so high.
If you look at the maximum CET the figure for 2006 was 20.9C. That was only 0.1C higher than the 20.8C recorded way back in 1895. 4 other years have seen the September maximum CET exceed 20C.
More recently both 1999 and 2003 saw a September max CET of 19.9C.
So far this year the September max CET is at 19.8C. That figure will fall back slightly in the final week but not by much. So from a maximum temperature point of view this year will be one of the warmest on record. Possibly within the top 20.
The 2006 minimum CET for September at 12.8C was 0.6C higher than the second placed year and 1.3C higher than the third placed year. This year we are currently running at 10.9C and that figure will most certainly drop away a bit before the end of the month, despite a couple of warmer nights later this week.