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| November 2001 monthly assessment issued 3 December
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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| Mainly dry, mild and anticyclonic,
especially dry and sunny in south-east England. After a warm
start, there was a little snow during the second week in
eastern England. Mostly dull and gloomy the third week.
Changeable, then becoming wet and unsettled last week. Very
mild at at the end of the month. |
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Diary of highlights
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1st - 6th Mainly dry, sunny and warm by day,
especially in the south, with high pressure close to
southern England. Low pressure over Scandinavia drove
some weak cold fronts south-east on the 3rd/4th and 6th.
There was patchy mist or fog and slight frost at times
overnight.
7th - 8th Wet, especially on the
7th as a deep low tracked to Denmark. Cold northerly
winds on the 8th brought some heavy thundery showers to
north-facing coasts; Weybourne/Norfolk recorded a gust
of 56 kn.
9th - 10th Mostly dry, sunny and
cold with overnight frost under a ridge of high
pressure. There were wintry showers over the east
Midlands and counties adjacent to the North Sea.
Bedfordshire received up to 3 cm of snow in parts, the
earliest significant report of lying snow in southern
England since 1980.
11th - 12th Mainly dry at
first but a cold front brought outbreaks of rain to most
places on the 12th.
13th - 20th An anticyclone covered the region for
most of this period, later stretching across to the continent.
The weather was generally dry apart from a little light
rain or drizzle at times. There was also some patchy mist,
hill and coastal fog from time to time. Mainly sunny at
first in south-east England and East Anglia with some overnight
frosts, Benson fell to -5 °C early on the 14th. However
from the 16th increasing cloud established the traditional
anticyclonic gloom and a little light rain or drizzle. Parts
of England and Wales became brighter during the 19th/20th
although there were still a few light showers affecting
some areas.
21st - 24th A changeable situation gave alternating
mild and cold days. Mild wet weather on the 21st gave way
to drier conditions as a weak cold front cleared on the
22nd. After a frosty start on the 23rd (Shap in Cumbria
fell to -5 °C ), more cloud and rising temperatures
spread back in thereafter.
25th - 30th Mostly wet and unsettled as vigorous
Atlantic lows pushed their fronts across the region. There
were rain and showers at times from the 25th to the 29th,
with a funnel cloud reported from Preston/Lancs on the 27th.
After some overnight frost on the 26th and 27th the last
two days became exceptionally mild, but still mostly cloudy
with rain and drizzle at times and quite persistent hill
fog. At Colwyn Bay and Hawarden the maximum temperature
of 16.9 °C on the 30th broke the UK record for the
last day of the month.
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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 7.1 °C, which
is 1.0 °C above the 1961-1990 average, which is
in the above average category.
England & Wales Rainfall Series (series began
in 1961).
The final total for the month was 67.7 mm, which is
74 % of the 1961-1990 average, which is in the below
average category.
England & Wales Sunshine Series (series began
in 1961).
The final total for the month was 65.8 hours, which is 103 %
of the 1961-1990 average, which is in the close to average
category.
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| Scotland |
| Mild westerly winds
predominate. |
| Diary of Highlights |
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High pressure to the south and south-west dominated
the pressure pattern for most of November. Mild air
tracking around the north of the high covered Scotland
for much of the month, but there were occasional bursts
of colder air from the north.
After the very warm
October, the first few days of November saw a cooling
trend as air of north-westerly origin penetrated the
country. There was a reasonable amount of bright weather
with showers and bands of mostly light rain. However, a
depression moving south-east gave a very wet day on the
5th, with 51 mm of rain at Dalmally.
A veering of
the airflow into the north ushered in a very cold day on
the 8th with strong winds, and snow in the north and
east. Many places experienced the first lying snow of
the season, with 18 cm at Aviemore. Alternating spells
of mild westerly and cold northerly winds continued for
the next few days.
On the 14th the anticyclone moved
north-east towards Britain, bringing a spell of settled
weather. However, any brightness in the east at first
was soon extinguished as the phenomenon known as
'anticyclonic gloom' took over. This was accentuated on
the 18th and 19th when weak fronts penetrated the high
and gave some rain.
On the 20th the anticyclone retreated to the south-west,
allowing westerly winds with weak fronts to cross Scotland,
and bringing alternations between warm and cold air. On
the 23rd the temperature at Biggar fell to -5 °C but
rose to 16 °C at Lossiemouth the next day.
During the final week
westerly winds continued, but pressure was lower than
earlier in the month. Rather cold and showery weather,
with further snow on the 27th, was replaced by milder
air with rain at times during the last three days.
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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 6.0 °C, which
is 1.7 °C above the 1961-1990 average, which is
in the well above average category. 3rd warmest in series,
warmest being 1994 with 7.5 °C.
Scotland Rainfall Series (series began in 1961).
The final total for the month was 151.0 mm, which is
96 % of the 1961-1990 average, which is in the close
to average category.
Scotland Sunshine Series (series began in 1961).
The final total for the month was 37.9 hours, which is 79 %
of the 1961-1990 average, which is in the well below average
category.
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| Northern
Ireland |
| Mild but Dull. |
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Diary of Highlights
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1st to 7th Rather warm throughout, fairly dry
and sunny to start with. Turning dull and wet from the
5th . Persistent rain/showers on 7th with strong winds
especially on the East coast.
8th to 13th
Strong winds were also recorded on the 8th. Cold
everywhere on the 8th and 13th, warm during the rest of
the period. Unsettled conditions with showers, some
heavy at times, along with sunny spells. The 8th was the
coldest day of the month, while the 13th was one of the
sunniest.
14th to 19th Many areas recorded
little or no rainfall during this period. Bright and
sunny at first followed by very dull conditions for a
number of days before returning to sunny
spells.
20th to 24th Very mild, however rather dull and unsettled
with rain and showers recorded throughout. Some localised
heavy rain on the North Coast on the 21st.
25th to 27th Rather cold, with
rain and showers. Good spells of bright
sunshine.
28th to 30th Mild throughout but
dull. Periods of persistent or patchy rain followed by
drier conditions.
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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 7.8 °C, which
is 2.0 °C above the 1961-1990 average, which is
in the exceptionally above average category. 3rd warmest
in series, warmest being 1994 with 8.9 °C.
Northern Ireland Rainfall Series (series began in
1961).
The final total for the month was 78.5 mm, which is
73 % 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 38.8 hours, which is 69 %
of the 1961-1990 average, which is in the exceptionally
below 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 7.5 °C which is 1.0 °C
above the 1961-90 normal of 6.5 °C and is in the above
average category.
Others:- 2000/7.0, 1999/7.9, 1998/6.2, 1997/8.4 °C.
England and Wales Rainfall (series begins in 1766).
The total for the month was 65.0 mm, which is 71 %
of the 1961-90 average and is in the below average category.
Others:- 2000/182.1, 1999/67.3, 1998/89.3, 1997/123.4, 1989/62.7 mm.
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| Note: Diary values are provisional based
on data available at the time. |
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