Anglia has a rainfall of less than 700 mm run each year, and snow falls on only 15 to 18 days on the average. The lowest annual rainfall was recorded at Margate (Kent) in 1921 (236 MM). Is fairly well distributed throughout the year, but, on average, March to June are the driest months and October to January the wettest. is in rather a different category, for here the rain-bearing winds have not been deprived of their moisture, and, although low-lying, much of the Irish plain receives up to 1,200 mm of rainfall per year, usually in the form of steady and prolonged drizzle. Snow, on the other hand, is rare, owing to the warming effects of the North Atlantic Drift. of the North Atlantic Drift and the predominantly maritime air masses that effect the British Isles, the range in temperature throughout the year is never very great. The annual mean temperature in England and Wales is about 10ТАC, in Scotland and Northern Ireland about 9ТАC. The mean January temperature for London is 4ТАC, and the mean July temperature 17ТАC.sea level in the west the mean annual temperature ranges from 8ТАC in the Hebrides to 11ТАC in the extreme south-west of England. July and August are the warmest months of the year on average and January and February the coldest. The mean summer temperatures throughout Britain increase from north to south.mean monthly temperature in the extreme north (the Shetlands) ranges from 3ТАC during the winter (December, January and February) to I2ТАC during the summer (June, July and August). The corresponding figures for the Isle of Wight, in the extreme south, are 5ТАC and I6 0 Ca normal summer the temperature may occasionally rise above 30ТАC in the south. The highest shade temperature ever recorded in Britain was about 37ТАC in August 1911 in Northampton-shire, Surrey and Kent. Minimum temperature of - 10ТАC may occur on a still, clear winter's night in inland arear. Lower temperatures are rare. The lowest temperature (-27.2ТАC) was recorded at Braemar (the Grampians) in February 1895 and January 1982.distribution of sunshine shows a general decrease from south to north, a decrease from the coast inland and a decrease with latitude. During the months of longest daylight (May, June and July) the mean daily duration of sunshine varies from five hours in northern Scotland to eight hours in the Isle of Wight. During November, December and January (the months of shortest daylight) sunshine is at minimum, with an average of half an hour a day in some parts of the Scottish Highlands and two hours a day on the south coast of England. Generally the coasts are everywhere sunnier than neighbouring inland districts. Ireland is subject to frequent cloud and records little sunshine.direct contrast with climate, in which short-term variations disappear with the calculation of averages, the weather of the British Isles is notoriously variable. Not only is it liable to day-to-day changes-some whole seasons are markedly wet, markedly dry, unusually cold, or unusually warm. is normally Britain's driest season, even though April is by tradition showery. Cold weather usually lasts no later than mid-April, and there are frequently some very warm days during the second half of the month. By late spring daytime temperature rises considerably, and the thermometer may even reach 2I-24ТАC over a wide area.is the brightest month of the year for Britain in general. Rainfall tends to increase during July and August, partly because Atlantic depressions some nearer to the coast during these months and partly also because air, as it becomes warmed, is capable of holding more moisture. Late summer is often noted for vary warm weather, and this way continue into September. and north-west winds often bring heavy falls of snow to north Britain during late October and November, but they are usually short-lived.air sometimes reaches the British Isles in summer as a warm, dry air-stream, but it is more frequently experienced in winter when it crosses the North Sea and brings bitter weather to eastern and inland districts of Great Britain.fine, still weather there is occasionally haze in summer and mist and fog in winter.present vegetation of great Britain owes much of its character to the influence of man. Only in the more remote parts of Ireland and the Scottish Highlands do remnants of the natural vegetation still exist. The "natural vegetation" in the true sense of the term has practically disappeared from Britain, and most of the present cover is loosely known as semi-natural in the unfenced rough, grazing and in the woodland.its mild climate, a wide variety of relief and soils Britain once had a diverse pattern of vegetation. The original natural vegetation consisted of forest, fen and marsh in the wet lowlands, especially where the drainage was poor, and shrub, heath and moorland on the uplands where soils were thin. In the lowland areas ...
