Wet weather: 1,308 mm (51 in) a year falls on Callington, more than on 93% of UK towns
The coldest hours of a January night bottom out at 2.4°C (36°F) on average. The gap between a January night and a July afternoon is 18°C. None of the 35 Cornwall towns has colder January nights. Frost greets about 32 mornings a year, so leave time to clear the car.
Met Office 1991–2020 averages for the town itself.
A year in Callington at a glance
Each month’s typical high and low, in °C.
What a year in Callington feels like
Typical highs and lows by season and by month, from the Met Office’s 1991–2020 averages.
About 1,308 mm of rain a year
January is the wettest month and June the driest. About 49 days a year bring 10 mm (0.4 in) or more. 6th wettest of 35 Cornwall towns of 2,500+.
Rain by month
Millimetres
32 air frosts and 4 days of 25°C a year
On about 32 nights a year the air drops below freezing, and on about under 1 days it stays below freezing all day. About 4 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 41 miles north of Callington, 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 Callington 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 |
|---|---|---|---|
| Callington | 20.7°C | 2.4°C | 1,308 mm |
| Kelly Bray 1.1 mi | 20.3°C about the same | 2.3°C about the same | 1,446 mm |
| Gunnislake and St Ann's Chapel 4.2 mi | 20.9°C about the same | 2.8°C about the same | 1,323 mm |
| Pensilva 4.3 mi | 19.7°C 0.9°C cooler | 2.3°C about the same | 1,538 mm |
| Landrake 5.6 mi | 20.7°C about the same | 3.4°C 1.0°C milder | 1,173 mm |
| Bere Alston 5.7 mi | 20.7°C about the same | 2.5°C about the same | 1,350 mm |
| St Cleer 7.0 mi | 19.6°C 1.0°C cooler | 2.6°C about the same | 1,577 mm |
Callington 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 | 8.1°C 47°F | 2.4°C 36°F | 5.2°C | 160 mm 6.3 in |
| February | 8.9°C 48°F | 2.9°C 37°F | 5.9°C | 118 mm 4.6 in |
| March | 10.7°C 51°F | 3.8°C 39°F | 7.3°C | 92 mm 3.6 in |
| April | 13.3°C 56°F | 5.2°C 41°F | 9.2°C | 79 mm 3.1 in |
| May | 16.1°C 61°F | 7.5°C 45°F | 11.7°C | 76 mm 3.0 in |
| June | 18.9°C 66°F | 10.2°C 50°F | 14.5°C | 74 mm 2.9 in |
| July | 20.7°C 69°F | 12.1°C 54°F | 16.4°C | 81 mm 3.2 in |
| August | 20.3°C 69°F | 12.1°C 54°F | 16.2°C | 93 mm 3.6 in |
| September | 18.3°C 65°F | 10.2°C 50°F | 14.3°C | 87 mm 3.4 in |
| October | 14.8°C 59°F | 8.0°C 46°F | 11.4°C | 137 mm 5.4 in |
| November | 11.4°C 53°F | 5.3°C 42°F | 8.3°C | 152 mm 6.0 in |
| December | 9.2°C 49°F | 3.5°C 38°F | 6.4°C | 159 mm 6.3 in |
| Year | 14.2°C | 6.9°C | 10.6°C | 1,308 mm |
Where Callington’s numbers come from
Averages over 30 years, not a forecast.
- Mean temperature, rain and day counts: HadUK-Grid 1991–2020 averages for the 1 Met Office 2 km grid square whose centre lies inside Callington’s built-up area.
- 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, 41 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 Callington’s climate
How warm does Callington get in summer?
July is the warmest month, with average highs of 20.7°C (69°F). About 4 days a year reach 25°C (77°F), fewer than 80% of UK towns.
How cold does Callington get in winter?
January nights average 2.4°C (36°F). The air drops below freezing on about 32 nights a year, and about under 1 days a year stay below freezing all day.
How much rain does Callington get?
About 1,308 mm (51 in) a year, more than 93% of UK towns. January is the wettest month (160 mm) and June the driest (74 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 Callington. 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 Callington →
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.