Sundial in St Trillo's Chruchyard is a Grade II listed building in the Conwy local planning authority area, Wales. First listed on 9 September 1994. Sundial.

Sundial in St Trillo's Chruchyard

WRENN ID
still-grate-barley
Grade
II
Local Planning Authority
Conwy
Constituency
Clwyd North MP: Gill German (Lab)
Country
Wales
Date first listed
9 September 1994
Type
Sundial
Address
Sundial in St Trillo's Chruchyard, Rhos on Sea, Llandrillo-Yn-Rhos / Rhos-On-Sea
OS grid reference
SH 832 806
Coordinates
53.30962, -3.75416
Source
Cadw listing

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

Description

The sundial in St Trillo's Churchyard features a cylindrical stone shaft that stands on a stepped base. The base is marked with the date 1712, while the shaft has the date 1756 inscribed below its projecting rim, along with the letters T H and O W. The sundial itself is dated 1755.

Local climate

Sundial in St Trillo's Chruchyard sits in a wetter-than-average part of the UK, with an average of 1,100 mm of rain a year. This makes it wetter than 87% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 76% of listed buildings.

It experiences an average of 34 freeze-thaw cycles a year, fewer than 51% of listed buildings. Of these, 18 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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