More rain falls on St Dominick than on 94% of UK towns: 1,331 mm (52 in) a year
Peak summer warmth arrives in July, with afternoons near 21.0°C (70°F). Rain peaks in December and eases off in May. Its January nights stay gentler than in 89% of UK towns. Expect about 30 frosty starts a year, nights when the air falls below freezing.
Met Office 1991–2020 averages for the town itself.
A year in St Dominick at a glance
Each month’s typical high and low, in °C.
What a year in St Dominick feels like
Typical highs and lows by season and by month, from the Met Office’s 1991–2020 averages.
About 1,331 mm of rain a year
December is the wettest month and May the driest. About 46 days a year bring 10 mm (0.4 in) or more.
Rain by month
Millimetres
30 air frosts and 6 days of 25°C a year
On about 30 nights a year the air drops below freezing; days that stay below freezing are rare. About 6 days a year reach 25°C (77°F).
Day counts are 1991–2020 averages from the Met Office’s 2 km grid. The Met Office calls a day of 25°C or more a summer day and a night below 0°C an air frost; ground frosts, on grass, come more often.
The Met Office station at Chivenor
Chivenor is 42 miles north of St Dominick, 6 m (20 ft) above sea level. It is the nearest of the 37 long-running stations the Met Office publishes in full; at that distance read it for sunshine and the station’s own record, not as the town’s figures.
| Month | High | Low | Rain | Air frosts |
|---|---|---|---|---|
| January | 9.1°C | 3.6°C | 91 mm | 5.4 |
| February | 9.4°C | 3.4°C | 70 mm | 5.0 |
| March | 11.2°C | 4.5°C | 60 mm | 2.6 |
| April | 13.7°C | 5.9°C | 56 mm | 0.9 |
| May | 16.5°C | 8.6°C | 55 mm | 0.0 |
| June | 19.0°C | 11.4°C | 68 mm | 0.0 |
| July | 20.7°C | 13.3°C | 74 mm | 0.0 |
| August | 20.5°C | 13.4°C | 77 mm | 0.0 |
| September | 18.8°C | 11.5°C | 70 mm | 0.0 |
| October | 15.4°C | 9.1°C | 107 mm | 0.4 |
| November | 12.1°C | 6.2°C | 106 mm | 1.8 |
| December | 9.9°C | 4.3°C | 107 mm | 4.6 |
| Year | 14.7°C | 7.9°C | 941 mm | 21 |
Met Office historic station data, Chivenor, 1991–2020 months averaged (a month needs 20 of the 30 years; estimated values counted, missing months left out). Sunshine: Campbell-Stokes recorder.
How St Dominick compares
Against the 2,537 towns and cities of 2,500 or more across the UK, each with its own Met Office averages, and its place among Cornwall towns that size.
Nearby towns’ climate
The nearest towns of 1,000+ within 12 miles: a hill, a valley or the sea can make a real difference over a few miles.
| Town | July high | January low | Rain a year |
|---|---|---|---|
| St Dominick | 21.0°C | 2.7°C | 1,331 mm |
| Gunnislake and St Ann's Chapel 2.7 mi | 20.9°C about the same | 2.8°C about the same | 1,323 mm |
| Callington 2.7 mi | 20.7°C about the same | 2.4°C about the same | 1,308 mm |
| Bere Alston 2.9 mi | 20.7°C about the same | 2.5°C about the same | 1,350 mm |
| Kelly Bray 3.3 mi | 20.3°C 0.7°C cooler | 2.3°C about the same | 1,446 mm |
| Landrake 4.7 mi | 20.7°C about the same | 3.4°C 0.7°C milder | 1,173 mm |
| Saltash 5.6 mi | 21.1°C about the same | 3.5°C 0.9°C milder | 1,092 mm |
St Dominick weather by month
Average daily high and low, mean temperature and rain, 1991–2020, for the town itself (the Met Office’s HadUK-Grid).
| Month | High | Low | Mean | Rain |
|---|---|---|---|---|
| January | 8.7°C 48°F | 2.7°C 37°F | 5.7°C | 152 mm 6.0 in |
| February | 9.3°C 49°F | 3.1°C 38°F | 6.2°C | 118 mm 4.6 in |
| March | 11.1°C 52°F | 4.1°C 39°F | 7.6°C | 95 mm 3.7 in |
| April | 13.8°C 57°F | 5.5°C 42°F | 9.6°C | 81 mm 3.2 in |
| May | 16.5°C 62°F | 7.8°C 46°F | 12.1°C | 72 mm 2.8 in |
| June | 19.3°C 67°F | 10.6°C 51°F | 14.9°C | 79 mm 3.1 in |
| July | 21.0°C 70°F | 12.4°C 54°F | 16.7°C | 83 mm 3.3 in |
| August | 20.7°C 69°F | 12.4°C 54°F | 16.5°C | 99 mm 3.9 in |
| September | 18.8°C 66°F | 10.5°C 51°F | 14.6°C | 93 mm 3.7 in |
| October | 15.2°C 59°F | 8.2°C 47°F | 11.7°C | 139 mm 5.5 in |
| November | 11.8°C 53°F | 5.4°C 42°F | 8.6°C | 155 mm 6.1 in |
| December | 9.6°C 49°F | 3.8°C 39°F | 6.7°C | 165 mm 6.5 in |
| Year | 14.6°C | 7.2°C | 10.9°C | 1,331 mm |
Where St Dominick’s numbers come from
Averages over 30 years, not a forecast.
- Mean temperature, rain and day counts: HadUK-Grid 1991–2020 averages for the Met Office 2 km grid square nearest St Dominick’s centre (the town is smaller than one square).
- Highs and lows: the Met Office publishes average daily maxima and minima on its 12 km grid; each is moved by the difference between the town’s 2 km mean temperature and the 12 km square’s, which carries the town’s own height and setting over.
- Weather station and sunshine: Met Office historic station data for Chivenor, 42 miles away, months of 1991–2020 averaged.
- Comparisons: every town and city of 2,500 or more across the UK, all four nations, read the same way.
Met Office HadUK-Grid · Met Office Climate Data Portal · Historic station data. Open Government Licence v3.0.
Questions about St Dominick’s climate
How warm does St Dominick get in summer?
July is the warmest month, with average highs of 21.0°C (70°F). About 6 days a year reach 25°C (77°F), fewer than 72% of UK towns.
How cold does St Dominick get in winter?
January nights average 2.7°C (37°F). The air drops below freezing on about 30 nights a year, and about under 1 days a year stay below freezing all day.
How much rain does St Dominick get?
About 1,331 mm (52 in) a year, more than 94% of UK towns. December is the wettest month (165 mm) and May the driest (72 mm).
Where do these figures come from?
The Met Office’s HadUK-Grid 1991–2020 averages, which turn thousands of weather stations into a map of the UK in 2 km squares; the page reads the squares inside St Dominick. They are 30-year averages, not a forecast.
Contains Met Office data © Crown copyright 2026, Open Government Licence v3.0. HadUK-Grid 1991–2020 averages via the Met Office Climate Data Portal; station averages from Met Office historic station data. Today’s forecast for St Dominick →
Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2026. Contains OS data © Crown copyright and database right 2026 (ONS boundaries). Northern Ireland: Source: NISRA; contains Land & Property Services data and Ordnance Survey of Northern Ireland information, © Crown copyright, licensed under the Open Government Licence v3.0. Scotland: contains National Records of Scotland data, Registers of Scotland data and SEPA data, © Crown copyright / © SEPA 2025, licensed under the Open Government Licence v3.0.