More days reach 25 degrees in Sherborne St John than in 82% of UK towns
January nights here settle around 1.9°C (35°F). The rainiest month is November; the driest is July. By frosts alone, it ranks colder than 67% of UK towns. Keep the boiler serviced for the months from November to April, which average under 10°C.
Met Office 1991–2020 averages for the town itself.
A year in Sherborne St John at a glance
Each month’s typical high and low, in °C.
What a year in Sherborne St John feels like
Typical highs and lows by season and by month, from the Met Office’s 1991–2020 averages.
About 763 mm of rain a year
November is the wettest month and July the driest. About 20 days a year bring 10 mm (0.4 in) or more.
Rain by month
Millimetres
Sunshine by month
Hours of bright sunshine at Heathrow
45 air frosts and 18 days of 25°C a year
On about 45 nights a year the air drops below freezing, and on about 1 days it stays below freezing all day. About 18 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 Heathrow
Heathrow is 31 miles north-east of Sherborne St John, 25 m (82 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 | Sun (hours) |
|---|---|---|---|---|---|
| January | 8.4°C | 2.7°C | 59 mm | 6.8 | 59 |
| February | 9.0°C | 2.6°C | 45 mm | 6.2 | 76 |
| March | 11.7°C | 4.1°C | 39 mm | 3.0 | 120 |
| April | 15.0°C | 6.0°C | 42 mm | 0.8 | 169 |
| May | 18.4°C | 9.1°C | 46 mm | 0.0 | 197 |
| June | 21.6°C | 12.0°C | 47 mm | 0.0 | 197 |
| July | 23.9°C | 14.2°C | 46 mm | 0.0 | 206 |
| August | 23.4°C | 14.1°C | 54 mm | 0.0 | 192 |
| September | 20.2°C | 11.6°C | 50 mm | 0.0 | 150 |
| October | 15.8°C | 8.8°C | 65 mm | 0.3 | 111 |
| November | 11.5°C | 5.3°C | 67 mm | 2.7 | 68 |
| December | 8.8°C | 3.1°C | 57 mm | 7.2 | 53 |
| Year | 15.6°C | 7.8°C | 616 mm | 27 | 1,597 |
Met Office historic station data, Heathrow (London Airport), 1991–2020 months averaged (a month needs 20 of the 30 years; estimated values counted, missing months left out). Sunshine: Kipp & Zonen recorder.
How Sherborne St John 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 Hampshire 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 |
|---|---|---|---|
| Sherborne St John | 22.4°C | 1.9°C | 763 mm |
| Basingstoke 2.0 mi | 22.3°C about the same | 1.8°C about the same | 805 mm |
| Bramley 3.3 mi | 22.6°C about the same | 1.7°C about the same | 741 mm |
| Old Basing 3.7 mi | 22.7°C about the same | 1.9°C about the same | 736 mm |
| Sherfield on Loddon 3.9 mi | 22.6°C about the same | 1.8°C about the same | 740 mm |
| Oakley 4.2 mi | 22.2°C about the same | 1.6°C about the same | 834 mm |
| Tadley 4.3 mi | 22.4°C about the same | 1.6°C about the same | 764 mm |
Sherborne St John 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 | 7.8°C 46°F | 1.9°C 35°F | 4.9°C | 78 mm 3.1 in |
| February | 8.2°C 47°F | 1.7°C 35°F | 4.9°C | 60 mm 2.4 in |
| March | 10.9°C 52°F | 3.1°C 37°F | 7.0°C | 51 mm 2.0 in |
| April | 13.9°C 57°F | 4.6°C 40°F | 9.3°C | 56 mm 2.2 in |
| May | 17.1°C 63°F | 7.4°C 45°F | 12.3°C | 50 mm 2.0 in |
| June | 20.1°C 68°F | 10.2°C 50°F | 15.2°C | 53 mm 2.1 in |
| July | 22.4°C 72°F | 12.3°C 54°F | 17.4°C | 50 mm 2.0 in |
| August | 21.9°C 71°F | 12.2°C 54°F | 17.1°C | 55 mm 2.2 in |
| September | 19.0°C 66°F | 9.9°C 50°F | 14.5°C | 56 mm 2.2 in |
| October | 14.8°C 59°F | 7.5°C 45°F | 11.2°C | 84 mm 3.3 in |
| November | 10.6°C 51°F | 4.3°C 40°F | 7.5°C | 89 mm 3.5 in |
| December | 8.0°C 46°F | 2.1°C 36°F | 5.1°C | 82 mm 3.2 in |
| Year | 14.6°C | 6.4°C | 10.5°C | 763 mm |
Where Sherborne St John’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 Sherborne St John’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 Heathrow (London Airport), 31 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 Sherborne St John’s climate
How warm does Sherborne St John get in summer?
July is the warmest month, with average highs of 22.4°C (72°F). About 18 days a year reach 25°C (77°F), more than 82% of UK towns.
How cold does Sherborne St John get in winter?
February nights average 1.7°C (35°F). The air drops below freezing on about 45 nights a year, and about 1 days a year stay below freezing all day.
How much rain does Sherborne St John get?
About 763 mm (30 in) a year, less than 52% of UK towns. November is the wettest month (89 mm) and July the driest (50 mm).
How sunny is it?
The nearest Met Office station with a sunshine record, Heathrow (31 miles away), averages 1,597 hours of bright sunshine a year. Sunshine isn’t on the town grid, so this is the station’s figure.
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 Sherborne St John. 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 Sherborne St John →
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