These figures are based on a re-constructed climatology for this station
since 1971: it's been cobbled together from three different stations
with short overlapping periods:

In this composite record for our corner of Bracknell (old-style
Easthampstead Park) (1971-2005), the previous warmest July (& warmest
any-named month) occurred in 1983, with a value of 20.0degC. This year
(2006), with a value of 20.6degC, we appear to have comfortably exceeded
this value.

Using that same series, looking at June & July combined, the previous
warmest two such pairings occurred in 1976 (17.8degC) & 1983 (17.5degC).
This year, with a value of 18.6degC (provisional), again we have notably
exceeded these values.

Martin.

--
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)

HEADLINE: EXCEPTIONALLY WARM: LENGTHY HOT/DRY SPELLS. SOME THUNDERY RAIN
[TEMPERATURES]
Mean 24hr maximum:... 27.6 [+5.0 anomaly on eLTA]
Mean 24hr minimum:... 15.5 [+2.8 anomaly on eLTA]

Mean of 24hr max & min:... 21.5 [+3.9 anomaly on eLTA 1971-2000]

19th: day / 24hr max 35.7degC, beats the previous highest (any-month)
value for us set on the 10th August, 2003 of 35.6degC: record starts
2000.)

Nr of days maximum at 09UTC =30degC:11 [dates: 02-04,16-21,25-26]

Rolling 12 month temperature anomaly: +0.8degC (was +0.5degC end last
month)

[PRECIPITATION (PPN/mm)]

Total rainfall/melted snow etc:... 41.9 [93% of eLTA]

Although the monthly total of 41.9mm was close to the estimated
long-term average (1971-2000) of 45mm, there were lengthy dry periods
with the rainfall being made up of 'short, sharp bursts' rather than
prolonged frontal-type rainfall. There was also a bias towards the
rainfall coming along in the 18-09Z period (65% of all rainfall) as
opposed to the 09-18Z period, though of course the two periods are not
equal in length: Neither of the two 'high-yield' rain events
(8.6mm/~dawn 5th & 11.0mm/late PM 26th thundery activity) troubled the
daytime 'score-board')

Rolling 12 month rainfall anomaly: 91% (was 93% end last month)

Rolling 24 month rainfall anomaly: 86% (was 85% end last month)

------------------------------------------------------------

Total rainfall for this year (2006) so far: 322.0 mm, representing 87%
of the 'average' that we should have by the end of July (372mm).



Martin.


--
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)

Martin Rowley a écrit :

Mean 24hr maximum:... 27.6 [+5.0 anomaly on eLTA]
Mean 24hr minimum:... 15.5 [+2.8 anomaly on eLTA]
Mean of 24hr max & min:... 21.5 [+3.9 anomaly on eLTA 1971-2000]

[PRECIPITATION (PPN/mm)]
Rolling 12 month rainfall anomaly: 91% (was 93% end last month)
Rolling 24 month rainfall anomaly: 86% (was 85% end last month)

Dare I suggest that you are not using the word "anomaly" correctly in
your references to precipitation above ?

An anomaly is a *difference* from the norm - as illustrated by your
temperature figures. Your rainfall figures, however, state the
*proportion* of normal rainfall that has fallen, not the difference
from normal.

Colin Youngs
Brussels