| |
Sunshine Hours
How long has the sun been out today...
Traditionally, the World Meteorological
Organisation, WMO, defines a sunshine hour as “the sum of the time intervals (in
hours) during which the direct normal solar irradiance exceeds a threshold of
120 W/m2”. Recently, the WMO has approved the “pyranometric method” of
calculating sunshine duration from pyranometer measurements (WMO-No. 8, Guide to
Meteorological Instruments). Inside the Mountsorrel & Rothley Weather Station, a
software algorithm calculates sunshine hours by first calculating the 1-second
maximum potential solar radiation possible (clear sky, bright sun) based on the
time and location of the sun proximity to the weather station. If the weather
station' Pyranometer output is greater than 40% of the maximum potential direct solar radiation, then a sun second is recorded. These sun seconds are then totalled up to calculate sun hours per day.
Leicestershire averages 1364 hours of sun a year
Recorded
Sunshine Hours by Month (2019) |
|
| |
| 2019 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | TOTAL(hrs) |
| NOV | 0.0 | 0.8 | 1.5 | 2.6 | 0.0 | 0.5 | 0.0 | 2.2 | 0.4 | 2.0 | 1.9 | 0.5 | 2.3 | 0.0 | 0.1 | 0.7 | 0.0 | 1.6 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
17.1
|
| OCT | 0.0 | 6.8 | 1.1 | 1.1 | 0.4 | 3.4 | 0.0 | 5.1 | 4.9 | 3.6 | 0.6 | 2.9 | 0.7 | 0.0 | 0.1 | 3.1 | 3.7 | 2.7 | 2.9 | 2.3 | 1.0 | 3.9 | 1.8 | 0.3 | 0.2 | 0.0 | 5.7 | 4.8 | 5.4 | 4.5 | 3.4 |
76.4
|
| SEP | 8.2 | 4.6 | 6.0 | 4.8 | 6.6 | 3.4 | 5.5 | 6.1 | 0.2 | 4.3 | 4.3 | 4.5 | 9.0 | 8.3 | 3.2 | 1.6 | 8.1 | 6.6 | 8.4 | 7.7 | 8.0 | 0.3 | 5.5 | 0.3 | 2.6 | 5.0 | 1.5 | 1.3 | 0.9 | 5.1 | 0.0 |
141.9
|
| AUG | 3.1 | 4.3 | 6.7 | 4.5 | 4.8 | 5.9 | 4.9 | 8.5 | 0.2 | 3.1 | 5.2 | 7.7 | 9.2 | 0.3 | 7.2 | 0.0 | 7.9 | 6.7 | 6.8 | 6.6 | 5.0 | 4.2 | 7.6 | 10.5 | 9.4 | 7.3 | 5.1 | 2.7 | 5.6 | 5.4 | 5.6 |
172.0
|
| JUL | 5.8 | 6.8 | 11.8 | 10.5 | 10.6 | 2.2 | 7.8 | 5.4 | 2.4 | 2.9 | 0.0 | 0.0 | 0.0 | 1.8 | 5.8 | 6.3 | 5.8 | 4.9 | 0.0 | 6.1 | 4.9 | 7.1 | 9.1 | 8.7 | 9.8 | 1.7 | 0.0 | 0.0 | 9.7 | 2.9 | 0.3 |
151.1
|
| JUN | 6.9 | 1.5 | 6.4 | 1.6 | 6.0 | 8.6 | 0.9 | 0.7 | 6.7 | 1.1 | 0.0 | 0.0 | 0.8 | 2.4 | 4.6 | 5.5 | 5.2 | 2.2 | 2.1 | 6.0 | 5.7 | 5.2 | 1.5 | 0.0 | 0.0 | 0.0 | 10.8 | 10.2 | 11.5 | 6.1 | 0.0 |
120.2
|
| MAY | 3.3 | 4.1 | 0.4 | 5.7 | 2.5 | 1.6 | 3.0 | 0.0 | 0.0 | 2.5 | 4.3 | 8.0 | 10.7 | 10.7 | 10.1 | 6.6 | 0.6 | 0.2 | 2.7 | 3.4 | 10.8 | 0.2 | 12.8 | 8.7 | 8.1 | 5.0 | 2.6 | 4.8 | 3.1 | 7.3 | 4.3 |
148.1
|
| APR | 7.9 | 2.3 | 3.7 | 0.4 | 1.8 | 2.7 | 0.6 | 4.6 | 2.7 | 9.4 | 9.0 | 1.3 | 4.2 | 2.0 | 6.2 | 2.4 | 5.6 | 4.9 | 9.8 | 9.9 | 8.9 | 8.6 | 4.1 | 1.9 | 3.8 | 3.5 | 2.3 | 2.6 | 1.7 | 5.6 | 0.0 |
134.4
|
|
|
| |
|
|
| |
Recordred Sunshine Hours by Year |
|
| |
| YEAR | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | TOTAL(hrs) |
| 2019 | 0.0 | 0.0 | 0.0 | 134.4 | 148.1 | 120.2 | 151.1 | 172.0 | 141.9 | 76.4 | 17.1 | 0.0 |
961.2
|
|
|
UK Outlook for Saturday 23 Nov 2019 to Monday 2 Dec 2019: The unsettled weather is set to carry on into next week, as weather systems continue to push in across the UK, bringing a risk of rain and showers for many. It will turn milder than as of late, but it may feel cooler in some stronger winds that accompany any spells of rain. The west and northwest will likely see the best of any drier and more settled weather conditions. There is an above average risk of overnight fog forming in any clearer spells overnight, which could be slow to clear in places. The showers may continue to be wintry over the highest ground bringing some sleet or snow at times. Temperatures are expected to be around average or perhaps slightly milder for the time of year.
UK Outlook for Tuesday 3 Dec 2019 to Tuesday 17 Dec 2019: A transition to more settled weather seems most likely for at least the southern half of the UK. Although periods of rain are possible here, they will probably be considerably patchier and less frequent than the west and northwest where spells of wind and rain interspersed with showers will predominate. Showers may turn wintry over high ground. Frost and freezing fog, which may be slow to clear, is most likely overnight under clear skies in the east and south. Temperatures are expected to be around average, or just above, for the time of year.
Mountsorrel is a village in Leicestershire on the River Soar, just south of Loughborough with a population of 6,662 inhabitants. A castle was built in 1080 by Hugh Lupus, but there is evidence of an earlier Norman settlement in the area in the form
of pottery fragments. A Roman villa is supposed to have existed on Broad Hill during the 4th century AD, the site of today's quarry, as quarrying during the late 1800s revealed many artefacts including a preserved wooden bucket. However, the first recording of the village was in 1377, when it had a population of 156.
The Mountsorrel Weather Station is located in Mountsorrel which is just South of Loughborough andjust North of Leicester, Leicestershire.
This website is non for profit and is freely maintained by Stormchaser Stuart Robinson whose passion is for all type of weather but especially the more severe types of weather such as Hurricanes, Typhoons and Tornadoes.
Stuart oftens travels the globle to experabce severe weather first after seeing his first tornado outside a town called Stuart in Nebraska, USA on the 9th June 2003.