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Climate in Rollesby · Met Office 1991–2020 averages

Rainfall in Rollesby trails that of 87% of UK towns: 627 mm (25 in) a year

A clear January night here typically dips to 1.9°C (35°F). Frosty nights are scarcer than in 76% of UK towns. The rainiest month is November; the driest is April. Frost greets about 34 mornings a year, so leave time to clear the car.

July afternoons: warmer than 52% of UK towns
January nights: milder than 61% of UK towns
Rain a year: drier than 87% of UK towns

Met Office 1991–2020 averages for the town itself.

A year in Rollesby at a glance

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

Jan7°C2°C
Feb8°C2°CColdest nights
Mar10°C3°C
Apr13°C5°C
May16°C8°C
Jun19°C11°C
Jul22°C13°C
Aug22°C13°CWarmest
Sep19°C11°C
Oct15°C8°C
Nov now11°C4°CWettest
Dec8°C2°C
A normal year

What a year in Rollesby feels like

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

Winter
8°C / 2°C
46°F / 36°F · 34 air frosts a year
Spring
13°C / 5°C
56°F / 41°F · 119 mm of rain
Summer
21°C / 12°C
69°F / 54°F · 12 days of 25°C+ a year
Autumn
15°C / 8°C
59°F / 46°F · 188 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 627 mm of rain a year

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

627 mm
Rain a year (25 in)
Drier than 87% of UK towns
14
Days a year with 10 mm of rain or more

Rain by month

Millimetres

67 mm
JFMAMJJASOND
Frost & warm days

34 air frosts and 12 days of 25°C a year

On about 34 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).

34
Air frosts a year (below 0°C)
Fewer frosts than 76% of UK towns
under 1
Days that stay below 0°C
12
Days of 25°C (77°F) or more
More warm days than 58% 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 71 miles south-west of Rollesby, 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 Rollesby 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 Norfolk towns that size.

July afternoons21.5°C (71°F)
Warmer than 52% of UK towns
January nights1.9°C (35°F)
Milder than 61% of UK towns
Rain a year627 mm (25 in)
Drier than 87% of UK towns
Air frosts a year34 nights
Fewer frosts than 76% of UK towns
Days of 25°C or more12 days
More warm days than 58% 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
Rollesby21.5°C1.9°C627 mm
Martham 1.6 mi21.6°C about the same1.9°C about the same628 mm
Ormesby St Margaret 2.4 mi21.6°C about the same2.1°C about the same627 mm
Hemsby 2.7 mi21.3°C about the same2.2°C about the same630 mm
Caister-on-Sea 4.4 mi21.6°C about the same2.3°C about the same567 mm
Acle 4.5 mi22.1°C 0.6°C warmer2.1°C about the same631 mm
Great Yarmouth 6.6 mi21.9°C about the same2.4°C 0.5°C milder582 mm
Month by month

Rollesby 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
January7.3°C 45°F1.9°C 35°F4.5°C50 mm 2.0 in
February7.8°C 46°F1.9°C 35°F4.8°C43 mm 1.7 in
March10.1°C 50°F3.1°C 38°F6.7°C43 mm 1.7 in
April13.0°C 55°F4.9°C 41°F8.9°C34 mm 1.3 in
May16.2°C 61°F7.8°C 46°F12.0°C43 mm 1.7 in
June19.1°C 66°F10.5°C 51°F14.8°C53 mm 2.1 in
July21.5°C 71°F12.7°C 55°F17.1°C56 mm 2.2 in
August21.7°C 71°F12.7°C 55°F17.2°C60 mm 2.4 in
September18.9°C 66°F10.7°C 51°F14.9°C55 mm 2.2 in
October14.8°C 59°F8.1°C 47°F11.5°C65 mm 2.6 in
November10.6°C 51°F4.5°C 40°F7.5°C67 mm 2.6 in
December7.7°C 46°F2.3°C 36°F5.0°C60 mm 2.4 in
Year14.1°C6.7°C10.4°C627 mm
Sources

Where Rollesby’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 Rollesby’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, 71 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 Rollesby’s climate

How warm does Rollesby get in summer?

August 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 58% of UK towns.

How cold does Rollesby get in winter?

February nights average 1.9°C (35°F). The air drops below freezing on about 34 nights a year, and about under 1 days a year stay below freezing all day.

How much rain does Rollesby get?

About 627 mm (25 in) a year, less than 87% of UK towns. November is the wettest month (67 mm) and April the driest (34 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 Rollesby. 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 Rollesby →

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.