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Climate in Yarnton · Met Office 1991–2020 averages

Summer afternoons in Yarnton are warmer than in 88% of UK towns

January nights here settle around 2.1°C (36°F). Seasons differ by 21°C, from the coldest nights to the warmest afternoons. By rainfall alone, it ranks drier than 73% of UK towns. Garden chairs stay out from June to September, the months with highs of 19–23°C.

July afternoons: warmer than 88% of UK towns
January nights: milder than 72% of UK towns
Rain a year: drier than 73% of UK towns

Met Office 1991–2020 averages for the town itself.

A year in Yarnton at a glance

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

Jan8°C2°CColdest nights
Feb9°C2°C
Mar11°C3°C
Apr14°C5°C
May17°C8°C
Jun20°C11°C
Jul23°C13°CWarmest
Aug22°C13°C
Sep19°C11°C
Oct15°C8°CWettest
Nov now11°C5°C
Dec8°C2°C
A normal year

What a year in Yarnton feels like

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

Winter
8°C / 2°C
47°F / 36°F · 39 air frosts a year
Spring
14°C / 5°C
58°F / 42°F · 146 mm of rain
Summer
22°C / 12°C
71°F / 54°F · 18 days of 25°C+ a year
Autumn
15°C / 8°C
59°F / 46°F · 192 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 672 mm of rain a year

October is the wettest month and March the driest. About 17 days a year bring 10 mm (0.4 in) or more. 25th wettest of 40 Oxfordshire towns of 2,500+.

672 mm
Rain a year (26 in)
Drier than 73% of UK towns
17
Days a year with 10 mm of rain or more
1,615 hrs
Sunshine a year at Oxford
3.8 miles away

Rain by month

Millimetres

70 mm
JFMAMJJASOND

Sunshine by month

Hours of bright sunshine at Oxford

212 h
JFMAMJJASOND
Frost & warm days

39 air frosts and 18 days of 25°C a year

On about 39 nights a year the air drops below freezing, and on about 1 days it stays below freezing all day. About 18 days a year reach 25°C (77°F).

39
Air frosts a year (below 0°C)
Fewer frosts than 61% of UK towns
1
Days that stay below 0°C
18
Days of 25°C (77°F) or more
More warm days than 84% 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 3.8 miles south-east of Yarnton, 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 Yarnton 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 Oxfordshire towns that size.

July afternoons22.8°C (73°F)
Warmer than 88% of UK towns8th warmest of 40 Oxfordshire towns
January nights2.1°C (36°F)
Milder than 72% of UK towns2nd mildest of 40 Oxfordshire towns
Rain a year672 mm (26 in)
Drier than 73% of UK towns25th wettest of 40 Oxfordshire towns
Air frosts a year39 nights
Fewer frosts than 61% of UK towns39th frostiest of 40 Oxfordshire towns
Days of 25°C or more18 days
More warm days than 84% of UK towns15th most 25°C days of 40 Oxfordshire 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
Yarnton22.8°C2.1°C672 mm
Kidlington 1.1 mi22.7°C about the same2.0°C about the same678 mm
Wolvercote 1.8 mi22.8°C about the same2.3°C about the same674 mm
Woodstock 3.3 mi22.8°C about the same1.5°C 0.6°C colder703 mm
Eynsham 3.4 mi22.8°C about the same1.8°C about the same676 mm
Long Hanborough 4.0 mi22.6°C about the same1.5°C 0.6°C colder706 mm
Freeland 4.2 mi22.6°C about the same1.5°C 0.6°C colder706 mm
Month by month

Yarnton 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
January7.8°C 46°F2.1°C 36°F5.0°C61 mm 2.4 in
February8.5°C 47°F2.1°C 36°F5.3°C45 mm 1.8 in
March11.2°C 52°F3.5°C 38°F7.3°C41 mm 1.6 in
April14.2°C 58°F5.1°C 41°F9.6°C48 mm 1.9 in
May17.5°C 63°F8.0°C 46°F12.7°C57 mm 2.2 in
June20.5°C 69°F10.9°C 52°F15.7°C44 mm 1.7 in
July22.8°C 73°F12.9°C 55°F17.9°C60 mm 2.4 in
August22.3°C 72°F12.7°C 55°F17.5°C58 mm 2.3 in
September19.3°C 67°F10.5°C 51°F14.9°C54 mm 2.1 in
October15.0°C 59°F7.8°C 46°F11.4°C70 mm 2.8 in
November10.8°C 51°F4.7°C 40°F7.7°C68 mm 2.7 in
December8.1°C 47°F2.5°C 36°F5.3°C65 mm 2.6 in
Year14.8°C6.9°C10.9°C672 mm
Sources

Where Yarnton’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 Yarnton’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 Oxford, 3.8 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 Yarnton’s climate

How warm does Yarnton get in summer?

July is the warmest month, with average highs of 22.8°C (73°F). About 18 days a year reach 25°C (77°F), more than 84% of UK towns.

How cold does Yarnton get in winter?

January nights average 2.1°C (36°F). The air drops below freezing on about 39 nights a year, and about 1 days a year stay below freezing all day.

How much rain does Yarnton get?

About 672 mm (26 in) a year, less than 73% of UK towns. October is the wettest month (70 mm) and March the driest (41 mm).

How sunny is it?

The nearest Met Office station with a sunshine record, Oxford (3.8 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 Yarnton. 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 Yarnton →

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.