No extremes in Speen: its weather tracks the middle of UK towns
A typical January night drops to 1.6°C (35°F) and a July afternoon reaches 21.8°C (71°F); 829 mm (33 in) of rain falls in a year. Wet weather is most frequent in January and least in March. Frost is rarer than in 63% of UK towns: about 39 nights a year drop below freezing. For walks and days out, the stretch from June to September brings highs of 18–22°C.
Met Office 1991–2020 averages for the town itself.
A year in Speen at a glance
Each month’s typical high and low, in °C.
What a year in Speen feels like
Typical highs and lows by season and by month, from the Met Office’s 1991–2020 averages.
About 829 mm of rain a year
January is the wettest month and March the driest. About 24 days a year bring 10 mm (0.4 in) or more.
Rain by month
Millimetres
Sunshine by month
Hours of bright sunshine at Heathrow
39 air frosts and 13 days of 25°C a year
On about 39 nights a year the air drops below freezing, and on about 3 days it stays below freezing all day. About 13 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 Heathrow
Heathrow is 21 miles south-east of Speen, 25 m (82 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 | 8.4°C | 2.7°C | 59 mm | 6.8 | 59 |
| February | 9.0°C | 2.6°C | 45 mm | 6.2 | 76 |
| March | 11.7°C | 4.1°C | 39 mm | 3.0 | 120 |
| April | 15.0°C | 6.0°C | 42 mm | 0.8 | 169 |
| May | 18.4°C | 9.1°C | 46 mm | 0.0 | 197 |
| June | 21.6°C | 12.0°C | 47 mm | 0.0 | 197 |
| July | 23.9°C | 14.2°C | 46 mm | 0.0 | 206 |
| August | 23.4°C | 14.1°C | 54 mm | 0.0 | 192 |
| September | 20.2°C | 11.6°C | 50 mm | 0.0 | 150 |
| October | 15.8°C | 8.8°C | 65 mm | 0.3 | 111 |
| November | 11.5°C | 5.3°C | 67 mm | 2.7 | 68 |
| December | 8.8°C | 3.1°C | 57 mm | 7.2 | 53 |
| Year | 15.6°C | 7.8°C | 616 mm | 27 | 1,597 |
Met Office historic station data, Heathrow (London Airport), 1991–2020 months averaged (a month needs 20 of the 30 years; estimated values counted, missing months left out). Sunshine: Kipp & Zonen recorder.
How Speen 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 Buckinghamshire 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 |
|---|---|---|---|
| Speen | 21.8°C | 1.6°C | 829 mm |
| Lacey Green and Loosley Row 1.2 mi | 21.8°C about the same | 1.6°C about the same | 823 mm |
| Walter's Ash and Naphill 1.5 mi | 21.8°C about the same | 1.7°C about the same | 840 mm |
| Hughenden Valley 2.2 mi | 21.8°C about the same | 1.8°C about the same | 828 mm |
| Prestwood and Great Missenden 2.4 mi | 21.8°C about the same | 1.6°C about the same | 803 mm |
| Great Kingshill 2.7 mi | 22.3°C 0.5°C warmer | 1.6°C about the same | 816 mm |
| Princes Risborough 3.0 mi | 21.5°C about the same | 2.0°C about the same | 779 mm |
Speen 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 | 6.8°C 44°F | 1.6°C 35°F | 4.2°C | 89 mm 3.5 in |
| February | 7.3°C 45°F | 1.4°C 35°F | 4.3°C | 60 mm 2.4 in |
| March | 10.1°C 50°F | 2.8°C 37°F | 6.5°C | 53 mm 2.1 in |
| April | 13.4°C 56°F | 4.6°C 40°F | 9.0°C | 60 mm 2.3 in |
| May | 16.3°C 61°F | 7.4°C 45°F | 11.9°C | 59 mm 2.3 in |
| June | 19.4°C 67°F | 10.3°C 51°F | 14.9°C | 57 mm 2.2 in |
| July | 21.8°C 71°F | 12.2°C 54°F | 16.9°C | 57 mm 2.3 in |
| August | 21.5°C 71°F | 12.3°C 54°F | 16.8°C | 75 mm 2.9 in |
| September | 18.3°C 65°F | 10.0°C 50°F | 14.2°C | 64 mm 2.5 in |
| October | 14.0°C 57°F | 7.6°C 46°F | 10.8°C | 87 mm 3.4 in |
| November | 9.8°C 50°F | 4.2°C 40°F | 7.1°C | 88 mm 3.5 in |
| December | 7.3°C 45°F | 2.0°C 36°F | 4.7°C | 81 mm 3.2 in |
| Year | 13.8°C | 6.4°C | 10.1°C | 829 mm |
Where Speen’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 Speen’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 Heathrow (London Airport), 21 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 Speen’s climate
How warm does Speen get in summer?
July is the warmest month, with average highs of 21.8°C (71°F). About 13 days a year reach 25°C (77°F), more than 61% of UK towns.
How cold does Speen get in winter?
February nights average 1.4°C (35°F). The air drops below freezing on about 39 nights a year, and about 3 days a year stay below freezing all day.
How much rain does Speen get?
About 829 mm (33 in) a year, more than 59% of UK towns. January is the wettest month (89 mm) and March the driest (53 mm).
How sunny is it?
The nearest Met Office station with a sunshine record, Heathrow (21 miles away), averages 1,597 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 Speen. 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 Speen →
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.