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Climate in Cullompton · Met Office 1991–2020 averages

Frost comes to Cullompton less often than to 81% of UK towns

A typical January night drops to 2.4°C (36°F) and a July afternoon reaches 21.3°C (70°F); 947 mm (37 in) of rain falls in a year. Rain is plentiful here, more than falls on 81% of UK towns. Summers go the other way: only about 9 days a year reach 25°C, fewer than in 69% of UK towns.

July afternoons: cooler than 64% of UK towns
January nights: milder than 79% of UK towns
Rain a year: wetter than 81% of UK towns

A year in Cullompton at a glance

Each month’s typical high and low, in °C.

Jan8°C2°C
Feb9°C2°CColdest nights
Mar11°C3°C
Apr14°C5°C
May17°C7°C
Jun19°C10°C
Jul21°C12°CWarmest
Aug21°C12°C
Sep19°C10°C
Oct15°C8°C
Nov now11°C5°C
Dec9°C3°CWettest
A normal year

What a year in Cullompton feels like

Typical highs and lows by season and by month, from the Met Office’s 1991–2020 averages.

Winter
9°C / 3°C
48°F / 37°F · 283 mm of rain, the wettest season
Spring
14°C / 5°C
57°F / 41°F · 191 mm of rain
Summer
21°C / 11°C
69°F / 53°F · 9 days of 25°C+ a year
Autumn
15°C / 8°C
59°F / 46°F · 275 mm of rain
Best months to be outsideJunJulAugSepHighs of 17–27°C (63–81°F) and nights of 8°C (46°F) or more
Rain

About 947 mm of rain a year

December is the wettest month and May the driest. About 30 days a year bring 10 mm (0.4 in) or more. 38th wettest of 47 Devon towns of 2,500+.

947 mm
Rain a year (37 in)
Wetter than 81% of UK towns
30
Days a year with 10 mm of rain or more
1,524 hrs
Sunshine a year at Yeovilton
34 miles away

Rain by month

Millimetres

108 mm
JFMAMJJASOND

Sunshine by month

Hours of bright sunshine at Yeovilton

192 h
JFMAMJJASOND
Frost & warm days

32 air frosts and 9 days of 25°C a year

On about 32 nights a year the air drops below freezing, and on about under 1 days it stays below freezing all day. About 9 days a year reach 25°C (77°F).

32
Air frosts a year (below 0°C)
Fewer frosts than 81% of UK towns
under 1
Days that stay below 0°C
9
Days of 25°C (77°F) or more
Fewer warm days than 69% of UK towns

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.

Weather station

The Met Office station at Yeovilton

Yeovilton is 34 miles east of Cullompton, 20 m (66 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.

MonthHighLowRainAir frostsSun (hours)
January8.6°C2.0°C70 mm10.058
February9.0°C1.8°C51 mm9.777
March11.2°C3.0°C49 mm7.6114
April13.9°C4.5°C52 mm3.8163
May17.1°C7.4°C47 mm0.5191
June19.9°C10.3°C58 mm0.0188
July21.9°C12.2°C50 mm0.0192
August21.6°C12.2°C61 mm0.0175
September19.2°C10.0°C53 mm0.0142
October15.3°C7.6°C81 mm1.8104
November11.5°C4.4°C80 mm5.569
December9.0°C2.3°C77 mm10.352
Year14.9°C6.5°C728 mm491,524

Met Office historic station data, Yeovilton, 1991–2020 months averaged (a month needs 20 of the 30 years; estimated values counted, missing months left out). Sunshine: Kipp & Zonen recorder.

Compared with other towns

How Cullompton compares

Against the 2,178 towns and cities of 2,500 or more in England and Wales, each with its own Met Office averages, and its place among Devon towns that size.

July afternoons21.3°C (70°F)
Cooler than 64% of UK towns16th warmest of 47 Devon towns
January nights2.4°C (36°F)
Milder than 79% of UK towns47th mildest of 47 Devon towns
Rain a year947 mm (37 in)
Wetter than 81% of UK towns38th wettest of 47 Devon towns
Air frosts a year32 nights
Fewer frosts than 81% of UK towns10th frostiest of 47 Devon towns
Days of 25°C or more9 days
Fewer warm days than 69% of UK towns6th most 25°C days of 47 Devon towns
Next door

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.

TownJuly highJanuary lowRain a year
Cullompton21.3°C2.4°C947 mm
Bradninch 2.4 mi21.4°C about the same2.2°C about the same941 mm
Willand 2.6 mi21.4°C about the same2.6°C about the same969 mm
Uffculme 4.5 mi21.0°C about the same2.4°C about the same1,020 mm
Sampford Peverell 4.6 mi21.4°C about the same2.5°C about the same967 mm
Silverton 4.6 mi21.6°C about the same2.4°C about the same896 mm
Tiverton 5.1 mi21.5°C about the same2.5°C about the same1,047 mm
Month by month

Cullompton weather by month

Average daily high and low, mean temperature and rain, 1991–2020, for the town itself (the Met Office’s HadUK-Grid).

MonthHighLowMeanRain
January8.3°C 47°F2.4°C 36°F5.3°C102 mm 4.0 in
February8.7°C 48°F2.3°C 36°F5.5°C73 mm 2.9 in
March10.9°C 52°F3.4°C 38°F7.1°C68 mm 2.7 in
April13.6°C 56°F4.8°C 41°F9.1°C66 mm 2.6 in
May16.6°C 62°F7.4°C 45°F12.0°C57 mm 2.2 in
June19.4°C 67°F10.2°C 50°F14.8°C63 mm 2.5 in
July21.3°C 70°F12.0°C 54°F16.6°C62 mm 2.5 in
August21.0°C 70°F12.1°C 54°F16.5°C74 mm 2.9 in
September18.6°C 66°F10.1°C 50°F14.4°C66 mm 2.6 in
October14.9°C 59°F7.8°C 46°F11.3°C101 mm 4.0 in
November11.3°C 52°F4.9°C 41°F8.1°C108 mm 4.2 in
December8.8°C 48°F2.9°C 37°F5.9°C108 mm 4.3 in
Year14.5°C6.7°C10.6°C947 mm
Sources

Where Cullompton’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 Cullompton’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 Yeovilton, 34 miles away, months of 1991–2020 averaged.
  • Comparisons: every town and city of 2,500 or more in England and Wales, read the same way.

Met Office HadUK-Grid · Met Office Climate Data Portal · Historic station data. Open Government Licence v3.0.

Questions about Cullompton’s climate

How warm does Cullompton get in summer?

July is the warmest month, with average highs of 21.3°C (70°F). About 9 days a year reach 25°C (77°F), fewer than 69% of UK towns.

How cold does Cullompton get in winter?

February nights average 2.3°C (36°F). The air drops below freezing on about 32 nights a year, and about under 1 days a year stay below freezing all day.

How much rain does Cullompton get?

About 947 mm (37 in) a year, more than 81% of UK towns. December is the wettest month (108 mm) and May the driest (57 mm).

How sunny is it?

The nearest Met Office station with a sunshine record, Yeovilton (34 miles away), averages 1,524 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 Cullompton. 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 Cullompton →

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.