Climate
The Northern Isles have a cool, temperate climate that is remarkably mild and steady for such a northerly latitude, due to the influence of the surrounding seas and the Gulf Stream. In Shetland average peak temperatures are 5 °C (41 °F) in February and 15 °C (59 °F) in August and temperatures over 21 °C (70 °F) are rare. The frost-free period may be as little as 3 months.
The average annual rainfall is 982 millimetres (38.7 in) in Orkney and 1,168 millimetres (46.0 in) in Shetland. Winds are a key feature of the climate and even in summer there are almost constant breezes. In winter, there are frequent strong winds, with an average of 52 hours of gales being recorded annually in Orkney. Burradale wind farm on Shetland, which operates with five Vestas V47 660 kW turbines, achieved a world record of 57.9% capacity over the course of 2005 due to the persistent strong winds.
Snowfall is usually confined to the period November to February and seldom lies on the ground for more than a day. Less rain falls from April to August although no month receives less than an average of 50 mm (2.0 in). Annual bright sunshine averages 1082 hours in Shetland and overcast days are common.
To tourists, one of the fascinations of the islands is their "nightless" summers. On the longest day in Shetland there are over 19 hours of daylight and complete darkness is unknown. This long twilight is known in the Northern Isles as the "simmer dim". Winter nights are correspondingly long with less than six hours of daylight at midwinter. At this time of year the aurora borealis can occasionally be seen on the northern horizon during moderate auroral activity.
Read more about this topic: Northern Isles
Famous quotes containing the word climate:
“The question of place and climate is most closely related to the question of nutrition. Nobody is free to live everywhere; and whoever has to solve great problems that challenge all his strength actually has a very restricted choice in this matter. The influence of climate on our metabolism, its retardation, its acceleration, goes so far that a mistaken choice of place and climate can not only estrange a man from his task but can actually keep it from him: he never gets to see it.”
—Friedrich Nietzsche (1844–1900)
“Culture is the name for what people are interested in, their thoughts, their models, the books they read and the speeches they hear, their table-talk, gossip, controversies, historical sense and scientific training, the values they appreciate, the quality of life they admire. All communities have a culture. It is the climate of their civilization.”
—Walter Lippmann (1889–1974)
“A positive learning climate in a school for young children is a composite of many things. It is an attitude that respects children. It is a place where children receive guidance and encouragement from the responsible adults around them. It is an environment where children can experiment and try out new ideas without fear of failure. It is an atmosphere that builds children’s self-confidence so they dare to take risks. It is an environment that nurtures a love of learning.”
—Carol B. Hillman (20th century)