#1Caldicot
9,813 peopleJanuary low·23 air frosts a year·#205 of 2,537 in England, Scotland, Wales and Northern Ireland
Caldicot, #1 on this list · Photo: KamrynMatika2 at English Wikipedia · Public domainGwent rankings · Climate
Towns with the mildest winters in Gwent
Caldicot has the mildest winters of Gwent’s 38 towns of 2,500+: January nights average a low of 2.9°C (Met Office, 1991–2020). The typical town here averages 1.7°C.
The average January low (the coldest month’s nights). Met Office HadUK-Grid 1991–2020 averages on its 2 km grid, the cells inside each town averaged (contains Met Office data © Crown copyright). A described list: no letters. The rank across England, Scotland, Wales and Northern Ireland sits beside each figure.
#12.9°C
#2Monmouth
10,330 peopleJanuary low·35 air frosts a year·#260 of 2,537 in England, Scotland, Wales and Northern Ireland
#3Undy and Magor
5,742 peopleJanuary low·22 air frosts a year·#270 of 2,537 in England, Scotland, Wales and Northern Ireland
All 38 towns, ranked
January low, highest first. Temperatures are ranked on two decimals and shown to one, so two towns showing the same figure can rank apart; towns smaller than a 2 km cell share its figures. Towns with the same figure share a rank (T = tied). Each rank across England, Scotland, Wales and Northern Ireland links to the national list.
38 towns.
#TownJanuary lowAir frostsUK rank
Quick answers
Questions people ask
Which town in Gwent has the mildest winters?
Caldicot: January nights average a low of 2.9°C, with 23 air frosts in a typical year. Monmouth and Undy and Magor follow.
How are these towns ranked?
By the average January low, highest first, from the Met Office’s 1991–2020 averages on its 2 km grid: the cells inside the town, or the one nearest its centre for a town smaller than a cell. The figure is the one on each town’s Climate page.
Why isn’t my town on this list?
The list covers Gwent’s towns of 2,500+ with the figure. Smaller places show it on their own pages; every town in Gwent is on the county page.
Go deeper
All Gwent rankings →More Gwent lists
Every list ranks the same 2,500+ towns, so a town’s rank means the same thing on each.
Best places to live38 towns · #1 RogerstoneBest small towns25 towns · #1 RogerstoneMost affordable towns38 towns · #1 New TredegarSafest towns38 towns · #1 Pen-pedair-heolHealthiest towns38 towns · #1 Undy and MagorBest towns for jobs & income38 towns · #1 RogerstoneMost walkable towns38 towns · #1 MonmouthTowns with the lowest flood risk38 towns · #1 NantygloBest towns for the outdoors38 towns · #1 ChepstowMost historic towns38 towns · #1 AbergavennyTowns with the most civic life38 towns · #1 BrynmawrTowns with the highest household incomes38 towns · #1 RogerstoneDescribed, no lettersTowns with the lowest council tax38 towns · #1 Aberbargoed and 17 moreDescribed, no lettersTowns with the warmest summers38 towns · #1 Undy and MagorDescribed, no lettersTowns with the coolest summers38 towns · #1 Ebbw ValeDescribed, no lettersTowns with the fewest frosts38 towns · #1 Undy and MagorDescribed, no lettersDriest towns38 towns · #1 CaldicotDescribed, no lettersWettest towns38 towns · #1 New TredegarDescribed, no letters
County by county
Towns with the mildest winters, county by county
AberdeenshireBedfordshireBerkshireBuckinghamshireCambridgeshireCheshireClwydCornwallCounty DurhamCumbriaDerbyshireDevonDorsetDyfedEast Riding of YorkshireEast SussexEssexFifeGloucestershireGreater ManchesterGwentHampshireHertfordshireHighlandKentLancashireLeicestershireLincolnshireLondonMerseysideMid GlamorganNorfolkNorth LanarkshireNorth YorkshireNorthamptonshireNorthumberlandNottinghamshireOxfordshireShropshireSomersetSouth LanarkshireSouth YorkshireStaffordshireSuffolkSurreyTyne and WearWarwickshireWest GlamorganWest MidlandsWest SussexWest YorkshireWiltshireWorcestershire
Sources: . All under the Open Government Licence v3.0.
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.