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Climate in Llay · Met Office 1991–2020 averages

In Llay, July heat, January chill and rainfall all sit near the middle of UK towns

A typical July afternoon reaches 20.4°C (69°F), a January night drops to 1.9°C (35°F), and 840 mm (33 in) of rain falls in a year. Summers stay cool: July afternoons here are cooler than in 68% of UK towns. The gap between a January night and a July afternoon is 19°C. The outdoor season runs from June to September, with highs of 18–20°C.

July afternoons: cooler than 68% of UK towns
January nights: milder than 60% of UK towns
Rain a year: wetter than 61% of UK towns

Met Office 1991–2020 averages for the town itself.

A year in Llay at a glance

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

Jan8°C2°C
Feb8°C2°CColdest nights
Mar10°C3°C
Apr13°C4°C
May16°C7°C
Jun19°C10°C
Jul20°C12°CWarmest
Aug20°C12°C
Sep18°C10°C
Oct14°C7°C
Nov now10°C4°C
Dec8°C2°CWettest
A normal year

What a year in Llay 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 / 35°F · 41 air frosts a year
Spring
13°C / 5°C
56°F / 41°F · 180 mm of rain
Summer
20°C / 11°C
68°F / 52°F · 9 days of 25°C+ a year
Autumn
14°C / 7°C
57°F / 45°F · 243 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 840 mm of rain a year

December is the wettest month and April the driest. About 18 days a year bring 10 mm (0.4 in) or more. 19th wettest of 39 Clwyd towns of 2,500+.

840 mm
Rain a year (33 in)
Wetter than 61% of UK towns
18
Days a year with 10 mm of rain or more
1,392 hrs
Sunshine a year at Shawbury
25 miles away

Rain by month

Millimetres

91 mm
JFMAMJJASOND

Sunshine by month

Hours of bright sunshine at Shawbury

181 h
JFMAMJJASOND
Frost & warm days

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

On about 41 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).

41
Air frosts a year (below 0°C)
Fewer frosts than 55% of UK towns
under 1
Days that stay below 0°C
9
Days of 25°C (77°F) or more
Fewer 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 Shawbury

Shawbury is 25 miles south-east of Llay, 72 m (236 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)
January7.5°C1.2°C57 mm11.750
February8.1°C1.2°C43 mm10.871
March10.3°C2.3°C43 mm8.2109
April13.2°C3.9°C47 mm4.4148
May16.3°C6.7°C54 mm0.9181
June19.1°C9.6°C59 mm0.0173
July21.1°C11.5°C58 mm0.0179
August20.7°C11.4°C64 mm0.0156
September18.1°C9.3°C61 mm0.0127
October14.2°C6.6°C69 mm1.892
November10.3°C3.5°C61 mm6.759
December7.7°C1.3°C66 mm11.248
Year13.9°C5.7°C682 mm561,392

Met Office historic station data, Shawbury, 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 Llay 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 afternoons20.4°C (69°F)
Cooler than 68% of UK towns16th warmest of 39 Clwyd towns
January nights1.9°C (35°F)
Milder than 60% of UK towns24th mildest of 39 Clwyd towns
Rain a year840 mm (33 in)
Wetter than 61% of UK towns19th wettest of 39 Clwyd towns
Air frosts a year41 nights
Fewer frosts than 55% of UK towns15th frostiest of 39 Clwyd towns
Days of 25°C or more9 days
Fewer warm days than 58% of UK towns8th most 25°C days of 39 Clwyd 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
Llay20.4°C1.9°C840 mm
Bradley 1.1 mi20.4°C about the same2.1°C about the same838 mm
Gresford 1.5 mi20.8°C about the same2.0°C about the same750 mm
Gwersyllt 1.7 mi20.4°C about the same1.7°C about the same848 mm
Hope 2.0 mi20.7°C about the same1.6°C about the same832 mm
Brynteg 2.6 mi20.4°C about the same1.5°C about the same853 mm
Rossett 2.7 mi21.3°C 0.9°C warmer1.8°C about the same709 mm
Month by month

Llay 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
January7.6°C 46°F1.9°C 35°F4.8°C70 mm 2.7 in
February7.9°C 46°F1.8°C 35°F4.8°C65 mm 2.6 in
March10.1°C 50°F2.8°C 37°F6.5°C60 mm 2.4 in
April13.0°C 55°F4.5°C 40°F8.7°C60 mm 2.4 in
May16.2°C 61°F7.1°C 45°F11.7°C60 mm 2.4 in
June18.7°C 66°F9.8°C 50°F14.3°C65 mm 2.6 in
July20.4°C 69°F11.7°C 53°F16.1°C60 mm 2.4 in
August20.1°C 68°F11.8°C 53°F16.0°C66 mm 2.6 in
September17.6°C 64°F9.7°C 50°F13.7°C67 mm 2.6 in
October14.0°C 57°F7.1°C 45°F10.5°C87 mm 3.4 in
November10.3°C 50°F4.2°C 40°F7.2°C90 mm 3.5 in
December8.0°C 46°F2.2°C 36°F5.1°C91 mm 3.6 in
Year13.7°C6.2°C10.0°C840 mm
Sources

Where Llay’s numbers come from

Averages over 30 years, not a forecast.

  • Mean temperature, rain and day counts: HadUK-Grid 1991–2020 averages for the 1 Met Office 2 km grid square whose centre lies inside Llay’s built-up area.
  • 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 Shawbury, 25 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 Llay’s climate

How warm does Llay get in summer?

July is the warmest month, with average highs of 20.4°C (69°F). About 9 days a year reach 25°C (77°F), fewer than 58% of UK towns.

How cold does Llay get in winter?

February nights average 1.8°C (35°F). The air drops below freezing on about 41 nights a year, and about under 1 days a year stay below freezing all day.

How much rain does Llay get?

About 840 mm (33 in) a year, more than 61% of UK towns. December is the wettest month (91 mm) and April the driest (60 mm).

How sunny is it?

The nearest Met Office station with a sunshine record, Shawbury (25 miles away), averages 1,392 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 Llay. 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 Llay →

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.