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UK CLIMATE…read more

Slide 2

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THE BASICS…read more

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The UK climate is temperate
This means we have cool, wet winters and warm, wet summers
It's coldest in winter, then warms in spring, is the hottest in summer and
cools in autumn
The temperature range goes from an average of 5°C in January to 20°C
in August
Rainfall is quite high all year round but is highest in autumn and winter
(with an average of 120mm in January) and there is less in spring and
summer (with an average of 65mm in May)
The winds are mostly warm south-westerlies but cold north winds are
common ­ wind speeds vary by season and are generally stronger in
autumn and winter…read more

Slide 4

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LATITUDE ­ the UK lies between 50 and 55° north so it doesn't get very
hot as the sun never gets very high in the sky and it doesn't get very cold
as there are several hours of daylight, even in winter
edge of the Ferrel Cell so surface winds bring warm air from the south
and warm air rises, creating low pressure and depressions, which bring
rain throughout the year
MARITIME LOCATION ­ the UK is surrounded by water, which gains
and loses heat more slowly than land, and this means cool winds blow
from the sea to land in summer (making it cooler) and warm winds blow
from sea to land in winter (making it warmer)
LOCATED NEAR THE GULF STREAM ­ this makes the UK warmer than
many places at the same latitude as it transfers heat energy and raises air
temperature…read more

Slide 5

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It's warmer in the south because there's more hours of sunlight and the
sun's higher in the sky (there's a reduction in insolation at higher
Cornwall has an average temperature of 13.6°C
Scotland has an average temperature of 9.3°C
Places further from the sea experience higher summer temperatures as
they are less affected by cooler sea temperatures
The altitude of some areas means they have lower temperatures
(temperature decreases 6.4°C every 1,000m)
The effects of prevailing winds and ocean currents ­ the warmer air
associated with the North Atlantic Drift brings warmer Gulf Stream
waters to the western side of the UK
Temperatures in Anglesey are higher than temperatures in the Wash (East
Anglia)…read more

Slide 6

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They most commonly blow from the south-west
Strongest in the west because as the south-westerly surface winds
travel over the sea, there are no obstacles to slow them down but then
when they reach land they are affected by hills and become weaker
Stronger at higher altitudes as there are fewer obstacles to slow them
sown ­ generally wind speed increases with height
E.g. Great Dunn Fell in Cumbria experiences an average of 114 days a
year with gale force winds (over 63km/h for at least 10 minutes)…read more

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