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Climate in Meliden · Met Office 1991–2020 averages

Ice rarely forms: Meliden sees fewer frosts than 87% of UK towns

Expect July afternoons of about 20.2°C (68°F). Only about 5 days a year reach 25°C, fewer than in 78% of UK towns. The rainiest month is December; the driest is March. Warm coats and heating bills mark the months from November to April, when means dip under 10°C.

July afternoons: cooler than 72% of UK towns
January nights: milder than 79% of UK towns
Rain a year: drier than 52% of UK towns

Met Office 1991–2020 averages for the town itself.

A year in Meliden at a glance

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

Jan8°C2°CColdest nights
Feb8°C3°C
Mar10°C4°C
Apr13°C5°C
May16°C8°C
Jun18°C11°C
Jul20°C13°CWarmest
Aug20°C13°C
Sep18°C11°C
Oct14°C8°C
Nov now11°C5°C
Dec9°C3°CWettest
A normal year

What a year in Meliden feels like

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

Winter
8°C / 3°C
47°F / 37°F · 27 air frosts a year
Spring
13°C / 6°C
55°F / 42°F · 146 mm of rain
Summer
20°C / 12°C
67°F / 54°F · 5 days of 25°C+ a year
Autumn
14°C / 8°C
58°F / 47°F · 232 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 765 mm of rain a year

December is the wettest month and March the driest. About 16 days a year bring 10 mm (0.4 in) or more.

765 mm
Rain a year (30 in)
Drier than 52% of UK towns
16
Days a year with 10 mm of rain or more
1,575 hrs
Sunshine a year at Valley (Anglesey)
47 miles away

Rain by month

Millimetres

84 mm
JFMAMJJASOND

Sunshine by month

Hours of bright sunshine at Valley (Anglesey)

219 h
JFMAMJJASOND
Frost & warm days

27 air frosts and 5 days of 25°C a year

On about 27 nights a year the air drops below freezing, and on about under 1 days it stays below freezing all day. About 5 days a year reach 25°C (77°F).

27
Air frosts a year (below 0°C)
Fewer frosts than 87% of UK towns
under 1
Days that stay below 0°C
5
Days of 25°C (77°F) or more
Fewer warm days than 78% 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 Valley (Anglesey)

Valley (Anglesey) is 47 miles west of Meliden, 10 m (33 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)
January8.4°C3.8°C75 mm5.258
February8.4°C3.6°C62 mm4.881
March9.8°C4.5°C57 mm2.4126
April12.1°C6.1°C54 mm0.5173
May15.0°C8.6°C52 mm0.0219
June17.2°C11.0°C57 mm0.0203
July18.8°C12.9°C58 mm0.0190
August18.8°C13.1°C69 mm0.0176
September17.3°C11.6°C74 mm0.0143
October14.3°C9.2°C102 mm0.1101
November11.3°C6.6°C104 mm0.759
December9.1°C4.4°C94 mm4.246
Year13.4°C8.0°C857 mm181,575

Met Office historic station data, Valley, 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 Meliden 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 Clwyd towns that size.

July afternoons20.2°C (68°F)
Cooler than 72% of UK towns
January nights2.3°C (36°F)
Milder than 79% of UK towns
Rain a year765 mm (30 in)
Drier than 52% of UK towns
Air frosts a year27 nights
Fewer frosts than 87% of UK towns
Days of 25°C or more5 days
Fewer warm days than 78% 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
Meliden20.2°C2.3°C765 mm
Prestatyn 1.2 mi20.2°C about the same2.8°C 0.5°C milder768 mm
Dyserth 1.3 mi20.3°C about the same2.7°C about the same746 mm
Rhyl 2.6 mi20.4°C about the same3.2°C 0.9°C milder710 mm
Rhuddlan 2.6 mi20.3°C about the same3.0°C 0.7°C milder744 mm
St Asaph 4.3 mi20.3°C about the same2.8°C about the same748 mm
Kinmel Bay 4.7 mi20.2°C about the same3.3°C 1.0°C milder757 mm
Month by month

Meliden 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
January7.7°C 46°F2.3°C 36°F5.0°C58 mm 2.3 in
February8.4°C 47°F2.6°C 37°F5.5°C51 mm 2.0 in
March10.3°C 51°F3.7°C 39°F7.0°C46 mm 1.8 in
April12.8°C 55°F5.2°C 41°F8.9°C50 mm 2.0 in
May15.9°C 61°F7.9°C 46°F11.8°C50 mm 2.0 in
June18.4°C 65°F10.6°C 51°F14.5°C60 mm 2.4 in
July20.2°C 68°F12.7°C 55°F16.4°C63 mm 2.5 in
August20.0°C 68°F12.7°C 55°F16.3°C71 mm 2.8 in
September17.9°C 64°F10.8°C 52°F14.3°C71 mm 2.8 in
October14.4°C 58°F8.1°C 47°F11.2°C83 mm 3.3 in
November11.0°C 52°F5.5°C 42°F8.2°C78 mm 3.1 in
December8.7°C 48°F3.2°C 38°F5.9°C84 mm 3.3 in
Year13.8°C7.1°C10.4°C765 mm
Sources

Where Meliden’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 Meliden’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 Valley, 47 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 Meliden’s climate

How warm does Meliden get in summer?

July is the warmest month, with average highs of 20.2°C (68°F). About 5 days a year reach 25°C (77°F), fewer than 78% of UK towns.

How cold does Meliden get in winter?

January nights average 2.3°C (36°F). The air drops below freezing on about 27 nights a year, and about under 1 days a year stay below freezing all day.

How much rain does Meliden get?

About 765 mm (30 in) a year, less than 52% of UK towns. December is the wettest month (84 mm) and March the driest (46 mm).

How sunny is it?

The nearest Met Office station with a sunshine record, Valley (Anglesey) (47 miles away), averages 1,575 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 Meliden. 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 Meliden →

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.