June was mainly anticyclonic although there
were brief cyclonic episodes from 1st-15th, 13th-16th, and
29th-30th. Mean pressure was 1 to 2mbar above normal over
the British Isles with a weak south-easterly anomalous flow.
The main feature of the anomaly chart is the region of well-below
average pressure in the western Atlantic. The first five
days of June were cool, cloudy and very unsettled as a complex
low pressure area, initially west of Scotland, transferred
slowly eastwards to the Baltic.
Rain was heavy and persistent in northwestern Britain,
and Broadford (Skye) collected 51mm on the 1st-2nd; there
were thunderstorms over much of England on the 3rd and further
heavy rain in northeast England and southeast Scotland on
the 4th. The most noticeable weather features of the month
was the highest recorded night minimum temperature on the
19th June, where thermometers never dropped below 18.4°C.
The highest day temperature was recorded on the same day
at 29.5°C. Given the anticyclonic conditions and one
extreme thunderstorm activity at the end of the month, the
sunshine figure of 195.5 hrs was 97% of the average for
June.
The 24th June was a particularly damp day, where Lyneham
was recorded as the wettest place in Britain, we had a heavy
persistant downpour, 30mm of rain in the 24-hour period.
Extreme thunderstorms and lightning activity, disputed many
power lines in the area, resulting in many local towns being
without electricity for several hours. The flash floods
ended the period of warm weather more..
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