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| March 2001 monthly assessment issued
2/4/2001 |
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Monthly summaries available for: England
and Wales | Scotland | Northern
Ireland
Homogenous time series based upon selected station data:
CET | England and Wales
rainfall
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| Mostly cold with some snow at times
especially in the north and over high ground. Mild during the
second week. Relatively sunny and dry in the north and
north-west. Dull and wet in the south and south-east of
England and East Anglia. |
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Diary of highlights
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1st - 5th It was mostly dry but
with generally slack winds and snow cover in many places
especially in the north, some very low temperatures were
recorded. Boltshope Park in Durham which had 30 cm
of snow on the 1st, fell to -17.1 °C overnight the
2nd/3rd. There was some wintry showers over eastern and
south-east counties of England; otherwise most places had
sunny periods, prolonged in the north and north-west. Light
southerly winds and sunshine on the 5th gave a mild day.
6th - 12th With complex low pressure centred to the
west and north-west a wet but very mild period ensued. Bands
of rain and showers (some heavy with thunder) affected a
number of areas more especially in the south / south-east
and East Anglia. The 6th in particular was very wet, with
more heavy rain on the 11th and 12th, the south-east and
East Anglia again bearing the brunt. North-western areas
saw the most sun.
13th - 19th As the low pressure moved away to Scandinavia
a new centre became established to the south-west, with
fronts becoming slow moving over southern areas of England
and Wales. It was generally dry at first except in the south
and south-west where some heavy thundery rain broke out.
During the 16th/17th a rain band made some progress northwards
with sleet and snow on its northern flank. A low near the
English Channel on the 18th brought some rain, sleet and
snow to many areas before moving to the continent. A ridge
of high pressure on the 19th gave a mainly sunny day. Mild
in the south at first, colder later.
20th - 23rd Weather fronts made erratic progress
northwards again bringing rain to many areas, preceded by
sleet and snow especially over high ground and in the north.
Wales had significant falls, and snowploughs were used on
Exmoor where 5 - 8 cm of snow fell. It became very
mild for a time in the south later.
24th - 26th Easterly winds brought
mainly cold, cloudy conditions with patchy rain and
drizzle to most places.
27th - 29th Rain and
showers, some heavy with hail and thunder affected many
southern areas as an Atlantic depression moved across
the region. A funnel cloud was reported from Guildford
in Surrey and Newmarket.
30th - 31st Much warmer but with patchy rain and drizzle,
Guernsey reached 17.5 °C on the 31st.
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| Statistical details (using best available
data/estimates): updated 2003 |
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England & Wales Mean Temperature Series (series
began in 1961).
The final value for the month was 4.9 °C, which
is 0.3 °C below the 1961-1990 average, which is
in the close to average category.
England & Wales Rainfall Series (series began
in 1961).
The final total for the month was 91.3 mm, which is
125 % of the 1961-1990 average, which is in the above
average category.
England & Wales Sunshine Series (series began
in 1961).
The final total for the month was 90.2 hours, which is 86 %
of the 1961-1990 average, which is in the below average
category.
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| Scotland |
| Cold and sunny. |
| Diary of Highlights |
The weather of March 2001 formed a marked contrast to
that of recent years. Cold northerly and easterly winds
prevailed, with milder Atlantic air being restricted to
six days.
The first four days experienced very cold nights in a
slack airstream following the snowstorms at the end of
February. Clear skies, light winds and snow cover allowed
temperatures to fall below -16 °C somewhere on each
of the first four nights. The culmination was a value
of -21.7 °C recorded at Kinbrace in Sutherland on
the 3rd. This is close to the record March minimum of
-22.8 °C observed at Logie Coldstone in Aberdeenshire
in 1958.
From the 6th to the 11th a major depression in mid
Atlantic directed a mild south-southwesterly airstream
across Scotland. Periods of rain and showers were mixed
with sunny spells.
This spell was brought to an abrupt end on the 12th
when a secondary depression tracked north-east across
northern England to bring 43 mm of precipitation to
Aberdeen, much of which fell as snow. Thereafter a long
period of northerly and then easterly winds followed,
with plenty of sunshine and a few snow showers in the
east.
After the 21st winds remained in the east, but low
pressure and fronts pushing up from the south ensured
that it became much cloudier in most places. There was
rain at times, mostly in the east, with snow over high
ground. It was not until the 31st that Atlantic air
brought milder
conditions.
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Statistical details (using
best available data/estimates): updated 2003
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Scotland Mean Temperature Series (series
began in 1961).
The final value for the month was 2.5 °C, which
is 1.0 °C below the 1961-1990 average, which is
in the below average category.
Scotland Rainfall Series (series began in 1961).
The final total for the month was 77.3 mm, which is
60 % of the 1961-1990 average, which is in the well
below average category.
Scotland Sunshine Series (series began in 1961).
The final total for the month was 118.4 hours, which is
127 % of the 1961-1990 average, which is in the well
above average category. Sunniest in the series, previous
sunniest 1970 with 117.2 hours.
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| Northern
Ireland |
| This was a sunny March month. |
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Diary of Highlights
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The fourth consecutive month with above average sunshine
across Northern Ireland. However, it was also quite a
cold month and with a high frequency of overnight frosts.
Rainfall was above normal in the south-east, but it was
very dry in the far north and west, with the Londonderry
area receiving only around 25 mm, or around a third
of normal rainfall for the month.
1st - 5th Snowfalls early on the 1st,
otherwise dry and quite sunny, but very cold with
widespread severe frosts.
6th - 11th The
mildest spell of the month, but also less sunny and with
widespread persistent rain on the 6th and 11th.
12th - 20th Predominantly cold, dry and sunny
with frequent overnight frosts.
21st - 27th
Cold, cloudy with frequent spells of wet weather,
especially in the south-east.
28th - 31st
Becoming drier, warmer and sunny again. The 31st turned
out to be the warmest day of the month
overall.
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Statistical details (using
best available data/estimates): updated 2003
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Northern Ireland Mean Temperature Series (series
began in 1961).
The final value for the month was 4.3 °C, which
is 0.8 °C below the 1961-1990 average, which is
in the below average category. Coldest since 1987 when
4.2 °C was recorded.
Northern Ireland Rainfall Series (series began in
1961).
The final total for the month was 68.3 mm, which is
75 % of the 1961-1990 average, which is in the below
average category.
Northern Ireland Sunshine Series (series began in
1961).
The final total for the month was 114.4 hours, which is
118 % of the 1961-1990 average, which is in the above
average category.
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Homogeneous series based upon selected station data: updated
2003 |
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Central England Temperature (series begins in 1659).
The mean value for the month was 5.2 °C which is 0.5 °C
below the 1961-90 normal of 5.7 °C and is in the close
to average category.
Others:- 2000/7.6, 1999/7.4, 1998/7.9, 1997/8.4, 1996/4.5 °C.
England and Wales Rainfall (series begins in 1766).
The total for the month was 107.5 mm, which is 145 %
of the 1961-90 average and is in the well above average
category.
Others:- 2000/32.7, 1999/70.6, 1998/89.2, 1997/26.6, 1988/107.3 mm.
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| Note: Diary values are provisional based
on data available at the time. |
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