There was a brief warm spell around 9 September, on which date
the highest September temperature for six years was recorded,
but much of the rest of the month was cool. In fact it was the
coolest September since 1993, and heavy rain during the third
week caused floods. This was the result of a deep and slow-
moving low pressure system delivering copious rain between 23
and 25 September. Prior to that it was dry in East Anglia and
south-east England. The mean maximum temperature in September
ranged from 20.2C at St James's Park, London, to 12C at Lerwick,
Shetland. The Central England Temperature (CET) was 13.1C, which
is 1 degree below average. Daytime temperatures were between 0.2
degrees above average in East Anglia and 1.3 degrees below in
western Scotland. The highest recorded temperature was 29.3C at
both Writtle in Essex and Cambridge on the afternoon of 9
September. The coldest night was that of 22/23 September, when
Braemar, Aberdeenshire, recorded a minimum temperature of -4.1C.
Across England and Wal