Midwinter lows in Syston sink below those of 88% of UK towns
On a normal July day the thermometer tops out near 22.1°C (72°F). Seasons differ by 21°C, from the coldest nights to the warmest afternoons. By rainfall alone, it ranks drier than 81% of UK towns. Gritters and ice scrapers earn their keep on roughly 51 nights a year below 0°C.
Met Office 1991–2020 averages for the town itself.
A year in Syston at a glance
Each month’s typical high and low, in °C.
What a year in Syston feels like
Typical highs and lows by season and by month, from the Met Office’s 1991–2020 averages.
About 647 mm of rain a year
July is the wettest month and March the driest. About 15 days a year bring 10 mm (0.4 in) or more. 46th wettest of 50 Leicestershire towns of 2,500+.
Rain by month
Millimetres
A frosty town: 51 air frosts and 15 days of 25°C a year
On about 51 nights a year the air drops below freezing, and on about 1 days it stays below freezing all day. About 15 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 12 miles north-west of Syston, 48 m (157 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 |
|---|---|---|---|---|
| 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 Syston 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 Leicestershire 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 |
|---|---|---|---|
| Syston | 22.1°C | 1.2°C | 647 mm |
| Queniborough 1.1 mi | 22.2°C about the same | 1.2°C about the same | 648 mm |
| Thurmaston 1.6 mi | 22.4°C about the same | 1.2°C about the same | 649 mm |
| East Goscote 1.6 mi | 21.9°C about the same | 1.2°C about the same | 641 mm |
| Rearsby 2.4 mi | 21.9°C about the same | 1.2°C about the same | 641 mm |
| Birstall 2.5 mi | 22.4°C about the same | 1.3°C about the same | 650 mm |
| Sileby 2.9 mi | 22.3°C about the same | 1.3°C about the same | 652 mm |
Syston 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 | 7.3°C 45°F | 1.2°C 34°F | 4.3°C | 54 mm 2.1 in |
| February | 8.0°C 46°F | 1.2°C 34°F | 4.7°C | 43 mm 1.7 in |
| March | 10.7°C 51°F | 2.4°C 36°F | 6.6°C | 41 mm 1.6 in |
| April | 13.5°C 56°F | 4.0°C 39°F | 8.9°C | 44 mm 1.7 in |
| May | 16.5°C 62°F | 7.0°C 45°F | 11.8°C | 48 mm 1.9 in |
| June | 19.6°C 67°F | 9.7°C 50°F | 14.6°C | 58 mm 2.3 in |
| July | 22.1°C 72°F | 11.6°C 53°F | 16.9°C | 64 mm 2.5 in |
| August | 21.5°C 71°F | 11.6°C 53°F | 16.7°C | 61 mm 2.4 in |
| September | 18.6°C 65°F | 9.5°C 49°F | 14.2°C | 54 mm 2.1 in |
| October | 14.4°C 58°F | 6.8°C 44°F | 10.6°C | 64 mm 2.5 in |
| November | 10.2°C 50°F | 3.9°C 39°F | 7.1°C | 59 mm 2.3 in |
| December | 7.7°C 46°F | 1.5°C 35°F | 4.6°C | 58 mm 2.3 in |
| Year | 14.2°C | 5.9°C | 10.1°C | 647 mm |
Where Syston’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 Syston’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 Sutton Bonington, 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 Syston’s climate
How warm does Syston get in summer?
July is the warmest month, with average highs of 22.1°C (72°F). About 15 days a year reach 25°C (77°F), more than 70% of UK towns.
How cold does Syston get in winter?
January nights average 1.2°C (34°F). The air drops below freezing on about 51 nights a year, and about 1 days a year stay below freezing all day.
How much rain does Syston get?
About 647 mm (25 in) a year, less than 81% of UK towns. July is the wettest month (64 mm) and March the driest (41 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 Syston. 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 Syston →
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.