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Climate in Cold Ash · Met Office 1991–2020 averages

Frosty mornings in Cold Ash outnumber those of 84% of UK towns

On a normal July day the thermometer tops out near 22.4°C (72°F). Rain peaks in November and eases off in March. In July, afternoons here are warmer than in 75% of UK towns. Picnics, hikes and garden evenings come into their own from June to September, with highs of 19–22°C.

July afternoons: warmer than 75% of UK towns
January nights: colder than 73% of UK towns
Rain a year: drier than 56% of UK towns

Met Office 1991–2020 averages for the town itself.

A year in Cold Ash at a glance

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

Jan8°C1°C
Feb8°C1°CColdest nights
Mar11°C3°C
Apr14°C4°C
May17°C7°C
Jun20°C10°C
Jul22°C12°CWarmest
Aug22°C12°C
Sep19°C9°C
Oct15°C7°C
Nov now11°C4°CWettest
Dec8°C2°C
A normal year

What a year in Cold Ash 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 · 49 air frosts a year
Spring
14°C / 5°C
57°F / 40°F · 155 mm of rain
Summer
21°C / 11°C
71°F / 52°F · 15 days of 25°C+ a year
Autumn
15°C / 7°C
59°F / 44°F · 221 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 742 mm of rain a year

November is the wettest month and March the driest. About 19 days a year bring 10 mm (0.4 in) or more.

742 mm
Rain a year (29 in)
Drier than 56% of UK towns
19
Days a year with 10 mm of rain or more
1,615 hrs
Sunshine a year at Oxford
23 miles away

Rain by month

Millimetres

83 mm
JFMAMJJASOND

Sunshine by month

Hours of bright sunshine at Oxford

212 h
JFMAMJJASOND
Frost & warm days

49 air frosts and 15 days of 25°C a year

On about 49 nights a year the air drops below freezing, and on about 2 days it stays below freezing all day. About 15 days a year reach 25°C (77°F).

49
Air frosts a year (below 0°C)
More frosts than 84% of UK towns
2
Days that stay below 0°C
15
Days of 25°C (77°F) or more
More warm days than 73% 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 Oxford

Oxford is 23 miles north of Cold Ash, 63 m (207 ft) above sea level. It is the nearest of the 37 long-running stations the Met Office publishes in full.

MonthHighLowRainAir frostsSun (hours)
January8.0°C2.4°C60 mm8.464
February8.6°C2.3°C47 mm7.682
March11.3°C3.6°C43 mm3.8118
April14.4°C5.3°C49 mm1.5166
May17.7°C8.2°C57 mm0.1200
June20.7°C11.1°C50 mm0.0198
July23.1°C13.1°C53 mm0.0212
August22.5°C13.0°C62 mm0.0193
September19.4°C10.7°C52 mm0.0145
October15.1°C8.0°C73 mm0.7110
November10.9°C4.9°C72 mm3.271
December8.2°C2.6°C66 mm8.657
Year15.0°C7.1°C681 mm341,615

Met Office historic station data, Oxford, 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 Cold Ash 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 Berkshire towns that size.

July afternoons22.4°C (72°F)
Warmer than 75% of UK towns
January nights1.5°C (35°F)
Colder than 73% of UK towns
Rain a year742 mm (29 in)
Drier than 56% of UK towns
Air frosts a year49 nights
More frosts than 84% of UK towns
Days of 25°C or more15 days
More warm days than 73% 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
Cold Ash22.4°C1.5°C742 mm
Hermitage 1.7 mi22.4°C about the same1.4°C about the same743 mm
Thatcham 2.0 mi22.7°C about the same1.8°C about the same716 mm
Upper Bucklebury 2.2 mi22.8°C about the same1.5°C about the same712 mm
Newbury 3.3 mi22.5°C about the same1.7°C about the same831 mm
Compton 5.9 mi22.0°C about the same1.4°C about the same752 mm
Upper Basildon 6.6 mi22.7°C about the same1.5°C about the same694 mm
Month by month

Cold Ash 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°F1.5°C 35°F4.5°C77 mm 3.0 in
February8.2°C 47°F1.4°C 35°F4.8°C55 mm 2.2 in
March10.9°C 52°F2.7°C 37°F6.8°C48 mm 1.9 in
April13.9°C 57°F4.1°C 39°F9.0°C54 mm 2.1 in
May17.0°C 63°F6.9°C 44°F12.0°C53 mm 2.1 in
June20.0°C 68°F9.7°C 49°F14.8°C50 mm 2.0 in
July22.4°C 72°F11.6°C 53°F17.0°C52 mm 2.0 in
August21.9°C 71°F11.7°C 53°F16.8°C58 mm 2.3 in
September19.0°C 66°F9.5°C 49°F14.2°C57 mm 2.2 in
October14.7°C 58°F7.0°C 45°F10.9°C81 mm 3.2 in
November10.5°C 51°F4.0°C 39°F7.3°C83 mm 3.3 in
December8.1°C 47°F1.8°C 35°F5.0°C73 mm 2.9 in
Year14.5°C6.0°C10.3°C742 mm
Sources

Where Cold Ash’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 Cold Ash’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 Oxford, 23 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 Cold Ash’s climate

How warm does Cold Ash get in summer?

July is the warmest month, with average highs of 22.4°C (72°F). About 15 days a year reach 25°C (77°F), more than 73% of UK towns.

How cold does Cold Ash get in winter?

February nights average 1.4°C (35°F). The air drops below freezing on about 49 nights a year, and about 2 days a year stay below freezing all day.

How much rain does Cold Ash get?

About 742 mm (29 in) a year, less than 56% of UK towns. November is the wettest month (83 mm) and March the driest (48 mm).

How sunny is it?

The nearest Met Office station with a sunshine record, Oxford (23 miles away), averages 1,615 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 Cold Ash. 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 Cold Ash →

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.