Guest, Sign inJoin
Climate in Chirton · Met Office 1991–2020 averages

Frosty mornings in Chirton outnumber those of 80% of UK towns

In July the day’s top temperature is typically 22.1°C (72°F). Expect the heaviest rain in November and the lightest in March. By warm days alone, it ranks hotter than 68% of UK towns. Keep the boiler serviced for the months from November to April, which average under 10°C.

July afternoons: warmer than 67% of UK towns
January nights: colder than 70% of UK towns
Rain a year: wetter than 53% of UK towns

Met Office 1991–2020 averages for the town itself.

A year in Chirton 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°C10°C
Oct15°C7°C
Nov now11°C4°CWettest
Dec8°C2°C
A normal year

What a year in Chirton 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 · 48 air frosts a year
Spring
14°C / 5°C
57°F / 40°F · 161 mm of rain
Summer
21°C / 11°C
70°F / 52°F · 14 days of 25°C+ a year
Autumn
15°C / 7°C
58°F / 44°F · 224 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 789 mm of rain a year

November is the wettest month and March the driest. About 23 days a year bring 10 mm (0.4 in) or more.

789 mm
Rain a year (31 in)
Wetter than 53% of UK towns
23
Days a year with 10 mm of rain or more
1,690 hrs
Sunshine a year at Hurn (Bournemouth Airport)
37 miles away

Rain by month

Millimetres

87 mm
JFMAMJJASOND

Sunshine by month

Hours of bright sunshine at Hurn (Bournemouth Airport)

221 h
JFMAMJJASOND
Frost & warm days

48 air frosts and 14 days of 25°C a year

On about 48 nights a year the air drops below freezing, and on about 1 days it stays below freezing all day. About 14 days a year reach 25°C (77°F).

48
Air frosts a year (below 0°C)
More frosts than 80% of UK towns
1
Days that stay below 0°C
14
Days of 25°C (77°F) or more
More warm days than 68% 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 Hurn (Bournemouth Airport)

Hurn (Bournemouth Airport) is 37 miles south of Chirton, 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)
January8.8°C1.8°C96 mm11.165
February9.1°C1.6°C67 mm10.980
March11.4°C2.8°C62 mm8.3122
April14.2°C4.3°C58 mm4.7178
May17.4°C7.3°C49 mm0.6211
June20.1°C10.2°C54 mm0.0217
July22.3°C12.2°C50 mm0.0221
August22.0°C12.0°C60 mm0.0198
September19.6°C9.6°C69 mm0.0156
October15.6°C7.4°C101 mm2.2108
November11.8°C4.1°C108 mm6.976
December9.2°C2.0°C104 mm11.659
Year15.1°C6.3°C877 mm561,690

Met Office historic station data, Hurn, 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 Chirton 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 Wiltshire towns that size.

July afternoons22.1°C (72°F)
Warmer than 67% of UK towns
January nights1.5°C (35°F)
Colder than 70% of UK towns
Rain a year789 mm (31 in)
Wetter than 53% of UK towns
Air frosts a year48 nights
More frosts than 80% of UK towns
Days of 25°C or more14 days
More warm days than 68% 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
Chirton22.1°C1.5°C789 mm
Market Lavington 4.1 mi21.8°C about the same1.5°C about the same863 mm
Devizes 4.8 mi22.0°C about the same1.4°C about the same776 mm
Potterne 4.8 mi22.1°C about the same1.7°C about the same740 mm
Littleton Panell 5.0 mi21.8°C about the same1.5°C about the same863 mm
Pewsey 5.6 mi21.8°C about the same1.6°C about the same823 mm
Netheravon 6.9 mi21.9°C about the same1.6°C about the same762 mm
Month by month

Chirton 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
January7.5°C 46°F1.5°C 35°F4.5°C85 mm 3.4 in
February8.1°C 47°F1.4°C 35°F4.8°C56 mm 2.2 in
March10.6°C 51°F2.8°C 37°F6.7°C52 mm 2.0 in
April13.6°C 57°F4.2°C 40°F8.9°C56 mm 2.2 in
May16.9°C 62°F6.9°C 44°F11.9°C54 mm 2.1 in
June19.8°C 68°F9.8°C 50°F14.8°C56 mm 2.2 in
July22.1°C 72°F11.7°C 53°F16.9°C60 mm 2.4 in
August21.6°C 71°F11.8°C 53°F16.6°C64 mm 2.5 in
September18.9°C 66°F9.7°C 49°F14.3°C55 mm 2.2 in
October14.6°C 58°F7.0°C 45°F10.8°C82 mm 3.2 in
November10.6°C 51°F3.9°C 39°F7.3°C87 mm 3.4 in
December8.0°C 46°F1.9°C 35°F4.9°C82 mm 3.2 in
Year14.4°C6.0°C10.2°C789 mm
Sources

Where Chirton’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 Chirton’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 Hurn, 37 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 Chirton’s climate

How warm does Chirton get in summer?

July is the warmest month, with average highs of 22.1°C (72°F). About 14 days a year reach 25°C (77°F), more than 68% of UK towns.

How cold does Chirton get in winter?

February nights average 1.4°C (35°F). The air drops below freezing on about 48 nights a year, and about 1 days a year stay below freezing all day.

How much rain does Chirton get?

About 789 mm (31 in) a year, more than 53% of UK towns. November is the wettest month (87 mm) and March the driest (52 mm).

How sunny is it?

The nearest Met Office station with a sunshine record, Hurn (Bournemouth Airport) (37 miles away), averages 1,690 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 Chirton. 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 Chirton →

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.