Castleton sits near the bottom of UK towns for winter warmth
Midsummer highs settle at about 19.7°C (67°F). Its July afternoons stay fresher than in 80% of UK towns. Only 19°C separates winter nights from summer afternoons. Windscreens need scraping on about 58 mornings a year, the nights the air drops below 0°C.
Met Office 1991–2020 averages for the town itself.
A year in Castleton at a glance
Each month’s typical high and low, in °C.
What a year in Castleton feels like
Typical highs and lows by season and by month, from the Met Office’s 1991–2020 averages.
About 936 mm of rain a year
November is the wettest month and May the driest. About 23 days a year bring 10 mm (0.4 in) or more.
Rain by month
Millimetres
Sunshine by month
Hours of bright sunshine at Whitby
A frosty town: 58 air frosts and 7 days of 25°C a year
On about 58 nights a year the air drops below freezing, and on about 1 days it stays below freezing all day. About 7 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 Whitby
Whitby is 13 miles east of Castleton, 60 m (197 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 | 7.3°C | 2.2°C | 58 mm | 6.8 | 61 |
| February | 7.9°C | 2.3°C | 47 mm | 6.4 | 88 |
| March | 9.8°C | 3.2°C | 39 mm | 3.9 | 130 |
| April | 12.0°C | 4.8°C | 44 mm | 1.4 | 168 |
| May | 14.7°C | 7.3°C | 39 mm | 0.3 | 212 |
| June | 17.6°C | 10.1°C | 58 mm | 0.0 | 194 |
| July | 19.9°C | 12.2°C | 49 mm | 0.0 | 203 |
| August | 19.8°C | 12.2°C | 61 mm | 0.0 | 189 |
| September | 17.3°C | 10.2°C | 54 mm | 0.0 | 146 |
| October | 13.8°C | 7.7°C | 59 mm | 0.4 | 108 |
| November | 10.1°C | 4.7°C | 71 mm | 2.1 | 70 |
| December | 7.7°C | 2.4°C | 67 mm | 6.7 | 56 |
| Year | 13.2°C | 6.6°C | 645 mm | 28 | 1,625 |
Met Office historic station data, Whitby Coastguard / Whitby(from 2000 and $sunshine), 1991–2020 months averaged (a month needs 20 of the 30 years; estimated values counted, missing months left out). Sunshine: Campbell-Stokes recorder.
How Castleton 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 North 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 |
|---|---|---|---|
| Castleton | 19.7°C | 0.8°C | 936 mm |
| Lingdale 5.2 mi | 20.0°C about the same | 0.7°C about the same | 709 mm |
| Boosbeck 5.9 mi | 20.0°C about the same | 1.2°C about the same | 750 mm |
| Loftus 6.6 mi | 19.9°C about the same | 1.5°C 0.7°C milder | 739 mm |
| Guisborough 6.7 mi | 20.3°C 0.6°C warmer | 1.3°C 0.6°C milder | 744 mm |
| Skelton (Redcar and Cleveland) 7.0 mi | 20.0°C about the same | 1.3°C 0.6°C milder | 701 mm |
| Carlin How 7.1 mi | 20.3°C 0.6°C warmer | 1.9°C 1.1°C milder | 623 mm |
Castleton 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 | 6.1°C 43°F | 0.8°C 33°F | 3.4°C | 74 mm 2.9 in |
| February | 6.5°C 44°F | 0.5°C 33°F | 3.5°C | 67 mm 2.6 in |
| March | 8.7°C 48°F | 1.7°C 35°F | 5.2°C | 62 mm 2.4 in |
| April | 11.5°C 53°F | 3.2°C 38°F | 7.3°C | 66 mm 2.6 in |
| May | 14.2°C 57°F | 5.6°C 42°F | 9.8°C | 55 mm 2.2 in |
| June | 17.4°C 63°F | 8.5°C 47°F | 13.0°C | 84 mm 3.3 in |
| July | 19.7°C 67°F | 10.6°C 51°F | 15.2°C | 68 mm 2.7 in |
| August | 19.5°C 67°F | 10.5°C 51°F | 15.1°C | 82 mm 3.2 in |
| September | 16.4°C 62°F | 8.6°C 47°F | 12.5°C | 79 mm 3.1 in |
| October | 12.4°C 54°F | 5.8°C 42°F | 9.1°C | 93 mm 3.7 in |
| November | 8.5°C 47°F | 2.8°C 37°F | 5.5°C | 112 mm 4.4 in |
| December | 6.0°C 43°F | 0.6°C 33°F | 3.2°C | 93 mm 3.7 in |
| Year | 12.2°C | 4.9°C | 8.6°C | 936 mm |
Where Castleton’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 Castleton’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 Whitby Coastguard / Whitby(from 2000 and $sunshine), 13 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 Castleton’s climate
How warm does Castleton get in summer?
July is the warmest month, with average highs of 19.7°C (67°F). About 7 days a year reach 25°C (77°F), fewer than 68% of UK towns.
How cold does Castleton get in winter?
February nights average 0.5°C (33°F). The air drops below freezing on about 58 nights a year, and about 1 days a year stay below freezing all day.
How much rain does Castleton get?
About 936 mm (37 in) a year, more than 74% of UK towns. November is the wettest month (112 mm) and May the driest (55 mm).
How sunny is it?
The nearest Met Office station with a sunshine record, Whitby (13 miles away), averages 1,625 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 Castleton. 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 Castleton →
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.