Holwell is wetter than 73% of UK towns: 932 mm (37 in) of rain a year
A warm July spell here typically peaks at 21.8°C (71°F). Frost is common: about 45 nights a year drop below freezing, more than in 66% of UK towns. The rainiest month is November; the driest is May. Expect about 45 frosty starts a year, nights when the air falls below freezing.
Met Office 1991–2020 averages for the town itself.
A year in Holwell at a glance
Each month’s typical high and low, in °C.
What a year in Holwell feels like
Typical highs and lows by season and by month, from the Met Office’s 1991–2020 averages.
About 932 mm of rain a year
November is the wettest month and May the driest. About 29 days a year bring 10 mm (0.4 in) or more.
Rain by month
Millimetres
Sunshine by month
Hours of bright sunshine at Yeovilton
45 air frosts and 12 days of 25°C a year
On about 45 nights a year the air drops below freezing, and on about under 1 days it stays below freezing all day. About 12 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 Yeovilton
Yeovilton is 12 miles north-west of Holwell, 20 m (66 ft) above sea level. It is the nearest of the 37 long-running stations the Met Office publishes in full.
| Month | High | Low | Rain | Air frosts | Sun (hours) |
|---|---|---|---|---|---|
| January | 8.6°C | 2.0°C | 70 mm | 10.0 | 58 |
| February | 9.0°C | 1.8°C | 51 mm | 9.7 | 77 |
| March | 11.2°C | 3.0°C | 49 mm | 7.6 | 114 |
| April | 13.9°C | 4.5°C | 52 mm | 3.8 | 163 |
| May | 17.1°C | 7.4°C | 47 mm | 0.5 | 191 |
| June | 19.9°C | 10.3°C | 58 mm | 0.0 | 188 |
| July | 21.9°C | 12.2°C | 50 mm | 0.0 | 192 |
| August | 21.6°C | 12.2°C | 61 mm | 0.0 | 175 |
| September | 19.2°C | 10.0°C | 53 mm | 0.0 | 142 |
| October | 15.3°C | 7.6°C | 81 mm | 1.8 | 104 |
| November | 11.5°C | 4.4°C | 80 mm | 5.5 | 69 |
| December | 9.0°C | 2.3°C | 77 mm | 10.3 | 52 |
| Year | 14.9°C | 6.5°C | 728 mm | 49 | 1,524 |
Met Office historic station data, Yeovilton, 1991–2020 months averaged (a month needs 20 of the 30 years; estimated values counted, missing months left out). Sunshine: Kipp & Zonen recorder.
How Holwell 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 Dorset 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 |
|---|---|---|---|
| Holwell | 21.8°C | 2.0°C | 932 mm |
| Stalbridge 4.8 mi | 22.1°C about the same | 1.9°C about the same | 829 mm |
| Milborne Port 5.4 mi | 21.7°C about the same | 1.9°C about the same | 907 mm |
| Henstridge 5.6 mi | 22.1°C about the same | 2.0°C about the same | 826 mm |
| Sherborne 5.6 mi | 21.8°C about the same | 2.0°C about the same | 857 mm |
| Sturminster Newton 5.9 mi | 22.1°C about the same | 2.2°C about the same | 841 mm |
| Marnhull 7.1 mi | 22.2°C about the same | 2.1°C about the same | 816 mm |
Holwell 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 | 8.2°C 47°F | 2.0°C 36°F | 5.1°C | 100 mm 3.9 in |
| February | 8.6°C 48°F | 1.8°C 35°F | 5.2°C | 72 mm 2.8 in |
| March | 11.0°C 52°F | 3.0°C 37°F | 7.0°C | 65 mm 2.6 in |
| April | 13.8°C 57°F | 4.4°C 40°F | 9.1°C | 62 mm 2.5 in |
| May | 17.1°C 63°F | 7.1°C 45°F | 12.1°C | 56 mm 2.2 in |
| June | 19.8°C 68°F | 9.9°C 50°F | 14.9°C | 59 mm 2.3 in |
| July | 21.8°C 71°F | 11.8°C 53°F | 16.9°C | 56 mm 2.2 in |
| August | 21.4°C 71°F | 11.9°C 53°F | 16.7°C | 69 mm 2.7 in |
| September | 19.0°C 66°F | 9.7°C 50°F | 14.4°C | 70 mm 2.7 in |
| October | 15.1°C 59°F | 7.4°C 45°F | 11.2°C | 103 mm 4.0 in |
| November | 11.2°C 52°F | 4.3°C 40°F | 7.8°C | 111 mm 4.4 in |
| December | 8.7°C 48°F | 2.3°C 36°F | 5.5°C | 109 mm 4.3 in |
| Year | 14.6°C | 6.3°C | 10.5°C | 932 mm |
Where Holwell’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 Holwell’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 Yeovilton, 12 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 Holwell’s climate
How warm does Holwell get in summer?
July is the warmest month, with average highs of 21.8°C (71°F). About 12 days a year reach 25°C (77°F), more than 58% of UK towns.
How cold does Holwell get in winter?
February nights average 1.8°C (35°F). The air drops below freezing on about 45 nights a year, and about under 1 days a year stay below freezing all day.
How much rain does Holwell get?
About 932 mm (37 in) a year, more than 73% of UK towns. November is the wettest month (111 mm) and May the driest (56 mm).
How sunny is it?
The nearest Met Office station with a sunshine record, Yeovilton (12 miles away), averages 1,524 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 Holwell. 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 Holwell →
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.