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Climate in Barnham · Met Office 1991–2020 averages

Hardly any UK towns log more warm days than Barnham

Midwinter brings lows of about 1.6°C (35°F). August is the wettest month, April the driest. By frosts alone, it ranks colder than 78% of UK towns. Expect about 47 frosty starts a year, nights when the air falls below freezing.

July afternoons: warmer than 94% of UK towns
January nights: colder than 62% of UK towns
Rain a year: drier than 70% of UK towns

Met Office 1991–2020 averages for the town itself.

A year in Barnham at a glance

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

Jan8°C2°C
Feb8°C1°CColdest nights
Mar11°C2°C
Apr14°C4°C
May18°C7°C
Jun21°C10°C
Jul23°C12°CWarmest
Aug23°C12°CWettest
Sep20°C10°C
Oct15°C7°C
Nov now11°C4°C
Dec8°C1°C
A normal year

What a year in Barnham feels like

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

Winter
8°C / 1°C
46°F / 34°F · 47 air frosts a year
Spring
14°C / 4°C
58°F / 40°F · 136 mm of rain
Summer
22°C / 11°C
72°F / 52°F · 22 days of 25°C+ a year
Autumn
15°C / 7°C
59°F / 44°F · 193 mm of rain, the wettest season
Best months to be outsideJunJulAugSepHighs of 17–27°C (63–81°F) and nights of 8°C (46°F) or more
Rain

About 684 mm of rain a year

August is the wettest month and April the driest. About 14 days a year bring 10 mm (0.4 in) or more.

684 mm
Rain a year (27 in)
Drier than 70% of UK towns
14
Days a year with 10 mm of rain or more

Rain by month

Millimetres

69 mm
JFMAMJJASOND
Frost & warm days

47 air frosts and 22 days of 25°C a year

On about 47 nights a year the air drops below freezing, and on about under 1 days it stays below freezing all day. About 22 days a year reach 25°C (77°F).

47
Air frosts a year (below 0°C)
More frosts than 78% of UK towns
under 1
Days that stay below 0°C
22
Days of 25°C (77°F) or more
More warm days than 95% 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 Cambridge NIAB

Cambridge NIAB is 29 miles west of Barnham, 26 m (85 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 frosts
January7.7°C1.9°C49 mm9.0
February8.3°C1.8°C36 mm8.7
March11.0°C3.1°C33 mm5.2
April14.1°C4.7°C38 mm2.6
May17.4°C7.4°C43 mm0.6
June20.4°C10.5°C49 mm0.0
July23.1°C12.6°C48 mm0.0
August22.9°C12.6°C56 mm0.0
September19.6°C10.5°C51 mm0.0
October15.1°C7.9°C59 mm0.7
November10.7°C4.5°C53 mm3.7
December8.0°C2.2°C50 mm9.2
Year14.9°C6.6°C563 mm40

Met Office historic station data, Cambridge NIAB, 1991–2020 months averaged (a month needs 20 of the 30 years; estimated values counted, missing months left out). Sunshine: Campbell-Stokes recorder.

Compared with other towns

How Barnham 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 Suffolk towns that size.

July afternoons23.1°C (73°F)
Warmer than 94% of UK towns
January nights1.6°C (35°F)
Colder than 62% of UK towns
Rain a year684 mm (27 in)
Drier than 70% of UK towns
Air frosts a year47 nights
More frosts than 78% of UK towns
Days of 25°C or more22 days
More warm days than 95% of UK 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
Barnham23.1°C1.6°C684 mm
Thetford 2.4 mi22.6°C about the same1.2°C about the same658 mm
Ixworth 6.7 mi22.6°C about the same1.7°C about the same619 mm
Brandon 6.9 mi22.7°C about the same1.2°C about the same630 mm
Stanton 6.9 mi22.5°C 0.6°C cooler1.6°C about the same629 mm
Great Barton 7.7 mi22.9°C about the same1.6°C about the same610 mm
Weeting 8.1 mi23.0°C about the same1.0°C 0.6°C colder628 mm
Month by month

Barnham 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
January7.9°C 46°F1.6°C 35°F4.6°C53 mm 2.1 in
February8.3°C 47°F1.1°C 34°F4.7°C48 mm 1.9 in
March11.1°C 52°F2.3°C 36°F6.7°C46 mm 1.8 in
April14.2°C 58°F3.9°C 39°F9.0°C42 mm 1.6 in
May17.6°C 64°F6.7°C 44°F12.2°C49 mm 1.9 in
June20.5°C 69°F9.8°C 50°F15.2°C63 mm 2.5 in
July23.1°C 73°F12.0°C 54°F17.5°C58 mm 2.3 in
August22.8°C 73°F11.9°C 53°F17.4°C69 mm 2.7 in
September19.7°C 67°F9.6°C 49°F14.6°C56 mm 2.2 in
October15.3°C 60°F6.9°C 44°F11.1°C69 mm 2.7 in
November10.8°C 51°F3.7°C 39°F7.2°C68 mm 2.7 in
December7.9°C 46°F1.5°C 35°F4.7°C64 mm 2.5 in
Year14.9°C5.9°C10.4°C684 mm
Sources

Where Barnham’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 Barnham’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 Cambridge NIAB, 29 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 Barnham’s climate

How warm does Barnham get in summer?

July is the warmest month, with average highs of 23.1°C (73°F). About 22 days a year reach 25°C (77°F), more than 95% of UK towns.

How cold does Barnham get in winter?

February nights average 1.1°C (34°F). The air drops below freezing on about 47 nights a year, and about under 1 days a year stay below freezing all day.

How much rain does Barnham get?

About 684 mm (27 in) a year, less than 70% of UK towns. August is the wettest month (69 mm) and April the driest (42 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 Barnham. 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 Barnham →

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.