Sundial Approximately 250 Metres to North West of Glenthorne at Ss 7961 4967 is a Grade II listed building in the Exmoor National Park local planning authority area, England. First listed on 24 November 1988. Sundial.

Sundial Approximately 250 Metres to North West of Glenthorne at Ss 7961 4967

WRENN ID
strange-tallow-cedar
Grade
II
Local Planning Authority
Exmoor National Park
Constituency
North Devon MP: Ian Roome (LD)
Country
England
Date first listed
24 November 1988
Type
Sundial
OS grid reference
SS 796 496
Coordinates
51.23347, -3.72577
Source
Historic England listing

Also on this page: flood risk · radon risk · weather exposure · detailed attributes ↓

Description

The sundial, dated 1835, is located approximately 250 metres to the north-west of Glenthorne. It is made of limestone ashlar and features a baluster design with a moulded square plinth and a coursed rubble sub-plinth. The sundial has a square copper dial plate, which is inscribed: "Pontis Aetnsti, Londiniensis Clathnus, A.S. 1750: Situ antiquo Sublatus in hor loco Positus fuit A. S. 1835". This sundial was likely originally placed below the terrace to the north-east of Glenthorne, a house constructed for the Reverend W. S. Halliday, which began in 1829. It was probably moved to its current location near the kitchen garden in the late 20th century.

Local climate

Sundial Approximately 250 Metres to North West of Glenthorne at Ss 7961 4967 sits in one of the wettest parts of the UK, with an average of 1,180 mm of rain a year. This makes it wetter than 90% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 97% of listed buildings.

It experiences an average of 9 freeze-thaw cycles a year, fewer than 92% of listed buildings. Of these, 4 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.3°C per decade since 1991.

Averages for 1991–2020; temperature trend 1991–2025. Figures describe the wider area (a grid cell of roughly 10 km), not the individual site. Contains modified Copernicus Climate Change Service information 2026.

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