Photo: Steve F · CC BY-SA 2.0Few UK towns get less rain than Denaby Main: 584 mm (23 in) a year
Midwinter brings lows of about 1.8°C (35°F). Frosty nights are scarcer than in 61% of UK towns. Rain peaks in June and eases off in February. For walks and days out, the stretch from June to September brings highs of 19–22°C.
Met Office 1991–2020 averages for the town itself.
A year in Denaby Main at a glance
Each month’s typical high and low, in °C.
What a year in Denaby Main feels like
Typical highs and lows by season and by month, from the Met Office’s 1991–2020 averages.
About 584 mm of rain a year
June is the wettest month and February the driest. About 12 days a year bring 10 mm (0.4 in) or more. 62nd wettest of 63 South Yorkshire towns of 2,500+.
Rain by month
Millimetres
Sunshine by month
Hours of bright sunshine at Sheffield
39 air frosts and 12 days of 25°C a year
On about 39 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 Sheffield
Sheffield is 12 miles south-west of Denaby Main, 131 m (430 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 | 7.0°C | 2.2°C | 76 mm | 7.2 | 49 |
| February | 7.7°C | 2.2°C | 67 mm | 7.0 | 75 |
| March | 10.1°C | 3.4°C | 60 mm | 3.6 | 119 |
| April | 13.1°C | 5.2°C | 59 mm | 1.1 | 150 |
| May | 16.4°C | 7.8°C | 55 mm | 0.1 | 193 |
| June | 19.2°C | 10.8°C | 78 mm | 0.0 | 175 |
| July | 21.3°C | 12.8°C | 62 mm | 0.0 | 194 |
| August | 20.8°C | 12.6°C | 65 mm | 0.0 | 179 |
| September | 17.8°C | 10.5°C | 63 mm | 0.0 | 135 |
| October | 13.7°C | 7.8°C | 79 mm | 0.4 | 95 |
| November | 9.8°C | 4.8°C | 85 mm | 2.4 | 59 |
| December | 7.3°C | 2.6°C | 87 mm | 6.5 | 48 |
| Year | 13.7°C | 6.9°C | 834 mm | 28 | 1,469 |
Met Office historic station data, Sheffield, 1991–2020 months averaged (a month needs 20 of the 30 years; estimated values counted, missing months left out). Sunshine: Kipp & Zonen recorder.
How Denaby Main 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 South Yorkshire 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 |
|---|---|---|---|
| Denaby Main | 21.7°C | 1.8°C | 584 mm |
| Conisbrough 0.9 mi | 21.4°C about the same | 1.5°C about the same | 630 mm |
| Mexborough 1.5 mi | 21.7°C about the same | 1.8°C about the same | 585 mm |
| Barnburgh and Harlington 2.5 mi | 21.3°C about the same | 1.5°C about the same | 653 mm |
| Warmsworth 2.5 mi | 21.7°C about the same | 1.8°C about the same | 614 mm |
| Swinton 2.8 mi | 21.5°C about the same | 1.6°C about the same | 624 mm |
| Bolton upon Dearne 3.6 mi | 21.4°C about the same | 1.8°C about the same | 594 mm |
Denaby Main 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 | 1.8°C 35°F | 4.5°C | 42 mm 1.7 in |
| February | 8.1°C 47°F | 1.8°C 35°F | 5.0°C | 36 mm 1.4 in |
| March | 10.5°C 51°F | 3.0°C 37°F | 6.7°C | 38 mm 1.5 in |
| April | 13.5°C 56°F | 4.7°C 40°F | 9.1°C | 41 mm 1.6 in |
| May | 16.7°C 62°F | 7.3°C 45°F | 12.0°C | 44 mm 1.7 in |
| June | 19.5°C 67°F | 10.2°C 50°F | 14.8°C | 62 mm 2.4 in |
| July | 21.7°C 71°F | 12.2°C 54°F | 17.0°C | 54 mm 2.1 in |
| August | 21.4°C 70°F | 12.1°C 54°F | 16.8°C | 55 mm 2.1 in |
| September | 18.5°C 65°F | 9.9°C 50°F | 14.3°C | 50 mm 2.0 in |
| October | 14.3°C 58°F | 7.2°C 45°F | 10.8°C | 56 mm 2.2 in |
| November | 10.2°C 50°F | 4.3°C 40°F | 7.2°C | 54 mm 2.1 in |
| December | 7.7°C 46°F | 2.1°C 36°F | 4.9°C | 52 mm 2.0 in |
| Year | 14.1°C | 6.4°C | 10.2°C | 584 mm |
Where Denaby Main’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 Denaby Main’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 Sheffield, 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 Denaby Main’s climate
How warm does Denaby Main get in summer?
July is the warmest month, with average highs of 21.7°C (71°F). About 12 days a year reach 25°C (77°F), more than 59% of UK towns.
How cold does Denaby Main get in winter?
January nights average 1.8°C (35°F). The air drops below freezing on about 39 nights a year, and about under 1 days a year stay below freezing all day.
How much rain does Denaby Main get?
About 584 mm (23 in) a year, less than 95% of UK towns. June is the wettest month (62 mm) and February the driest (36 mm).
How sunny is it?
The nearest Met Office station with a sunshine record, Sheffield (12 miles away), averages 1,469 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 Denaby Main. 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 Denaby Main →
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.