Photo: Immanuel Giel · CC BY-SA 3.0Rothwell has colder winter nights than 94% of UK towns
A warm July spell here typically peaks at 21.9°C (71°F). A year here swings 21°C from midwinter lows to midsummer highs. Its yearly rainfall falls short of 68% of UK towns. Picnics, hikes and garden evenings come into their own from June to September, with highs of 19–22°C.
Met Office 1991–2020 averages for the town itself.
A year in Rothwell at a glance
Each month’s typical high and low, in °C.
What a year in Rothwell feels like
Typical highs and lows by season and by month, from the Met Office’s 1991–2020 averages.
About 694 mm of rain a year
October is the wettest month and March the driest. About 16 days a year bring 10 mm (0.4 in) or more. 8th wettest of 31 Northamptonshire towns of 2,500+.
Rain by month
Millimetres
A frosty town: 53 air frosts and 14 days of 25°C a year
On about 53 nights a year the air drops below freezing, and on about 2 days it stays below freezing all day. About 14 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 Sutton Bonington
Sutton Bonington is 34 miles north-west of Rothwell, 48 m (157 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 | 7.5°C | 1.9°C | 51 mm | 9.3 |
| February | 8.1°C | 1.9°C | 41 mm | 8.6 |
| March | 10.6°C | 3.0°C | 41 mm | 6.0 |
| April | 13.6°C | 4.6°C | 44 mm | 2.9 |
| May | 16.7°C | 7.1°C | 47 mm | 0.9 |
| June | 19.6°C | 10.1°C | 64 mm | 0.0 |
| July | 22.0°C | 12.1°C | 62 mm | 0.0 |
| August | 21.7°C | 12.1°C | 55 mm | 0.0 |
| September | 18.7°C | 10.1°C | 49 mm | 0.0 |
| October | 14.5°C | 7.5°C | 62 mm | 1.2 |
| November | 10.4°C | 4.4°C | 57 mm | 4.4 |
| December | 7.8°C | 2.1°C | 58 mm | 9.2 |
| Year | 14.3°C | 6.4°C | 631 mm | 43 |
Met Office historic station data, Sutton Bonington, 1991–2020 months averaged (a month needs 20 of the 30 years; estimated values counted, missing months left out). Sunshine: Campbell-Stokes recorder.
How Rothwell 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 Northamptonshire 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 |
|---|---|---|---|
| Rothwell | 21.9°C | 0.9°C | 694 mm |
| Desborough 1.7 mi | 21.9°C about the same | 0.8°C about the same | 694 mm |
| Mawsley Village 3.3 mi | 21.9°C about the same | 1.1°C about the same | 705 mm |
| Broughton 3.6 mi | 21.9°C about the same | 1.2°C about the same | 704 mm |
| Kettering 3.8 mi | 22.4°C about the same | 1.3°C about the same | 664 mm |
| Geddington 4.8 mi | 22.3°C about the same | 1.2°C about the same | 664 mm |
| Corby 5.9 mi | 22.2°C about the same | 0.9°C about the same | 684 mm |
Rothwell 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 | 7.0°C 45°F | 0.9°C 34°F | 3.9°C | 57 mm 2.2 in |
| February | 7.7°C 46°F | 0.9°C 34°F | 4.3°C | 45 mm 1.8 in |
| March | 10.3°C 50°F | 2.4°C 36°F | 6.3°C | 44 mm 1.7 in |
| April | 13.4°C 56°F | 3.6°C 38°F | 8.5°C | 49 mm 1.9 in |
| May | 16.5°C 62°F | 6.3°C 43°F | 11.4°C | 55 mm 2.2 in |
| June | 19.5°C 67°F | 9.2°C 49°F | 14.3°C | 58 mm 2.3 in |
| July | 21.9°C 71°F | 11.3°C 52°F | 16.6°C | 64 mm 2.5 in |
| August | 21.7°C 71°F | 11.3°C 52°F | 16.5°C | 67 mm 2.6 in |
| September | 18.6°C 66°F | 9.3°C 49°F | 14.0°C | 58 mm 2.3 in |
| October | 14.3°C 58°F | 6.6°C 44°F | 10.5°C | 71 mm 2.8 in |
| November | 10.0°C 50°F | 3.6°C 38°F | 6.8°C | 62 mm 2.5 in |
| December | 7.3°C 45°F | 1.4°C 35°F | 4.4°C | 63 mm 2.5 in |
| Year | 14.0°C | 5.6°C | 9.8°C | 694 mm |
Where Rothwell’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 Rothwell’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 Sutton Bonington, 34 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 Rothwell’s climate
How warm does Rothwell get in summer?
July is the warmest month, with average highs of 21.9°C (71°F). About 14 days a year reach 25°C (77°F), more than 67% of UK towns.
How cold does Rothwell get in winter?
January nights average 0.9°C (34°F). The air drops below freezing on about 53 nights a year, and about 2 days a year stay below freezing all day.
How much rain does Rothwell get?
About 694 mm (27 in) a year, less than 68% of UK towns. October is the wettest month (71 mm) and March the driest (44 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 Rothwell. 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 Rothwell →
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.