HEADLINE: VERY MILD & DRY OVERALL. FINE/WARM START THEN UNSETTLED.

Mean 24hr maximum:... 20.4 [+2.7]

Mean 24hr minimum:... 11.8 [+1.0]

Mean of 24hr max & min:... 16.1 [+1.9 anomaly on eLTA 1971-2000]

Total rainfall/melted snow etc:... 47.0 [67% of eLTA 1971-2000]

[ notes September as a whole ]

[TEMPERATURE]

Using a composite Easthampstead Park / Tawfield series (1971-2005), this
September just gone was the *second* warmest (using the 24hr max/min
values) in those 35yr with the overall anomaly of +1.9degC. The warmest
in that period was 1999 (+2.5degC).

In those 35 years, there have been 7 years with an anomaly = +1.0degC,
and all of them have occurred in the period from 1989 onwards (1989,
1991, 1998, 1999, 2000, 2004 & 2005).

Using the mean maximum (24hr) value ONLY, with an anomaly of +2.7degC,
this places it equal 'top' in the list (with 2003), but that year, the
overnight minima were *below* average, thanks to some cold nights during
the last week. This September, the 24hr minimum anomaly was +1.0, with
very few really chilly nights - hence the influx of Crane Flies and
large house spiders!

[RAINFALL]

Of the 47.0mm of rainfall this month, the overwhelming bulk of same
occurred in the period 18Z to 09Z (42.6mm 'overnight' plays 4.4mm during
the 'day'): As well as being a 'dry' month overall ( 67% of eLTA
1971-2000 ), the bias to night-time rainfall emphasised the perception
of a dry month. A third of the monthly total was produced in the period
04/2030 - 05/0300Z.

Martin.

(Last summary from this location)

--
Martin Rowley: data via -
http://homepage.ntlworld.com/booty.weather/metindex.htm
Bracknell (Wooden Hill/Tawfield), Berkshire
NGR: SU 854 667 Elev: 80m
Lat: 51DEG23MIN30SEC(N): Long: 00DEG46MIN28SEC(W)