Winter 2024-25 was unexceptional, being slightly milder overall than the long-term average. Spring 2025 was one of the warmest, sunniest, and driest on record. June was one of the hottest on record, and the hottest for England. Summer 2025 was easily the hottest on record; 1976 is no longer in the top five, and is even beaten in terms of the CET. After the sunny spring and summer autumn was dull; Northern Ireland had its dullest autumn in 42 years.

January. A lively month. Overall a cool month, with mean temperatures a little below the 1990-2020 averages. There was some heavy snow across much of England and Wales in the first week, with a rare "amber" weather warning for snow for the Midlands, Wales, and the North on 4-6th January. The Pennines suffered in particuar. There was flooding in the north and midlands when the thaw came, but the mild weather in the south didn't last long, with some low temperatures as Arctic air came flooding in, with the lowest temperature on the night of 8-9th being -12.4C at Tulloch Bridge (Highland); also -11.0 at Shap (Cumbria) and -7.8 at Sennybridge (Powys); then -14.4 at Altnaharra on the morning of the 10th. The maximum at Altnaharra on the 10th was just -10.8, and then it fell to -18.9C on Friday night (10-11th) - the coldest January night in the UK in 15 years. Milder air started slowly spreading from the west on Sunday 12th. 94.0 mm of rain fell at Seathwaite (Cumbroa) on the observing day ending on the 14th. The temperature at Altnaharra on the 14th reached 14.3, which was a rise of 32.7 over three days, a new record for the UK. It was settled for a while but then on the 24th Storm Eowyn hits the British Isles. It's a weather bomb, where central pressure drops by more than 24 mbar in 24 hours; it's generated in a very active jet stream when a cold plunge over America meets warmer air in the Gulf. Many homes lost power and Galway recorded the highest ever speed of a gust of wind speed in the Republic at 114 mph. There was a rare "red" warning for wind across the central belt of Scotland. A gust of 100 mph was recorded at Drumalbin (South Lanarkshire), and 99.1 on the Queensferry crossing between Edinburgh and Fife. In England the highest gust was 96 mph at Brizlee Wood (Northumberland) and in Wales 93 mph in Gwynedd. Northern Ireland recorded its lowest ever January sea level pre ssure with just 948.1 mbar at Magilligan (Londonderry) on the 24th. Storm Herminia brought more wet and windy weather to the south at the month's end. The highest temperature of the month was 15.7 C at Cassley Sutherland on the 14th and at Aboyne (Aberdeenshire) on the 15th. Rainfall across the UK was about average, but it was wet in southern England and dry in Scotland and Northern Ireland. It was though a sunny month, with a UK average of 61.8 hours (130%); it was particularly sunny in the north.

February. The month began with a blocking high giving cold easterly winds but as easterlies aren't what they were it wasn't exceptionally cold. The high started moving away on the 19th, allowing frontal systems to bring some snow to the north, but then mobile westerlies meant the rest of the month was changeable and mild.  There was some heavy rain in the west on the 23rd, particularly over South Wales, leading to flooding. The end of the month was quieter. Overall the month ended above average for the CET; Northern Ireland was particularly mild. It was quite a dry month, with a UK average of 72.7 mm (76%); it was particularly dry across northern England. The first half was dull but the second half quite sunny, and overall the UK saw not far from average sunshine (67 hours, 93%), although northern Scotland was particularly sunny. The highest temperature of the month was 17.0°C at Hull East Park on the 21st, and the lowest -9.6°C at Aviemore on the 14th. The heaviest rainfall was 111.2 mm, falliong at White Barrow (Devon) in the observing day ending on the 24th.

March. A very anticyclonic month and as a consequence very dry. Only Shetland recorded above average rainfall. It was the second driest March on record for Norfolk and Suffolk, beaten only by March 1929, and the sixth driest for England as a whole. It was the sunniest March on record in England, the second sunniest for Wales, and the third sunniest for the UK overall (158.1 hours, 145% average). There was some frost and fog, and overall it was warmer than average, with maximum temperatures being particularly high. Scotland and Northern Ireland were much milder than average. It reached 19C in Cumbria on the 9th but then a cold front brought some snow to Scotland. The highest temperature of the month was 21.3 at Northolt in London and Chertsey (Surrey on the 20th; the lowest temperature of the month was -9.0 at Tomintoul (Banffshire) on the 18th.

April. Dry, warm, and sunny. It was another largely anticyclonic month, with a few cooler, wetter interludes. The first two and the final weeks were largely dry. Maximum temperatures were well above average, minimum less so, but overall it was the warmest April since 2011, and the UK's record third warmest. Over the UK rainfall was around 50%, although Northern Ireland saw slightly above average rainfall. It was the sunniest April on record for the UK, with 228.9 hours (147%); it was the sunniest April on record in England, and secon sunniest (after 2021) elsewhere. The end of the month was very warm. The highest temperature of the month was 26.7 ºC at Wisley (Surrey) on the 30th; this is the highest April temperature since 2018, and so the 1949 record still stands. It had been 24.9 at Trawsgoed (Ceredigion, Wales) on Tuesday 29th. The lowest temperature of the month was -6.6 at Tomintoul (Banffshire) on the 5th, and the highest wind gust  81 mph at the Needles (IOW) on the 16th.

May. Warm, dry, and very sunny; a very anticyclonic month. Maxima were particularly high; there were some cool nights, particularly at the start and in the middle of the month. The weather became more unsettled from the 23rd; many parts of the country (including Angus) had no rain at all in the first 22 days. It was the fifth warmest May on record for the UK as a whole, and the second warmest for England. Overall the average was 50.9 mm of rainfall (72%), most of the rain falling in the final nine days. The UK saw 266 hours of sunshine (139%), the sunniest May on record for Scotland and Northern Ireland, the second sunniest for Wales, the third sunniest for England, and the second sunniest for the UK overall. This month saw the warmest start to May on record, with 29.3ºC at Kew Gardens on the 1st, and that was the highest temperature of the month; the lowest was -5.1ºC at Altnaharra (Sutherland) on the 23rd. 72.6 mm of rain fell at Seathwaite (Cumbria) on the recording day ending on the 25th.

June. Warm and sunny, and month with two notable heatwaves. Overall in terms of CET it was joint first with 2023; it was England's warmest June on record (mean 16.9, +2.5), the second warmest for the UK as a whole (since 1884), and the third warmest for Wales.  It was particularly hot around London and in the southeast. The month had an unsettled, cool start, with some welcome rain for many areas. There was a Spanish Plume on the 13th, with the hottest day of the year so far (29.4ºC at Santon Downham, Suffolk, on the 13th). There were some thunderstorms and heavy rain; the storms were severe in the far southeast and east of East Anglia. Over 30,000 lightning strikes were recorded overnight 14-15th in England in these storms, and Manston (Kent) received 50 mm of rain. After a cooler break, it turned very hot again, reaching 32.2 at Kew Gardens and Heathow on the 19th, 30.9 at Heathow on the 20th, and 33.2 Charlwood (Surrey) on the 21st (the hottest day of the month and year so far). There was a band of vigorous thunderstorms across northern England and southern Scotland, heading to the NE, on the night of the 21st. There was another heatwave in the southeast at the end of the month: 31.3C (Heathrow, 28th), 31.0 St James Park, London, 29th, 33.1 Heathrow 30th). It is the hottest opening day at Wimbledon on record, with 32.3C (on Monday 30th). These are the highest temperatures in June since 2020. There was some talk of the record for June being broken, but in the end these temperatures, although high for June, and until recently would have been exceptionally so, did not come close. Rainfall overall was close to average (79.5 mm, 103%), but there was a great east-west divide, with the west being wet and the east, particularly the SE, very dry. It was sunnier than average (192.1 hours, 112%) overall, particularly along the east of England; while East Anglia recorded 141%, it was duller than average in the north and west. The lowest temperature of the month was exactly 0 at Braemar on the 8th. The highest rainfall total in the reocrding day was 70.9 mm at Brothers Water in Cumbria ending on the 28th.

July. Overall a very warm month, being the 5th warmest July on record for the UK. The heatwave at the end of June culminated with 34.7 at St James Park in London, the highest temperature of the year so far, on the 1st, later upgraded to 35.8ºC at Faversham in Kent. I wonder what the much-missed great British climatologist Philip Eden would have made of that (see August 2003). It then turned much cooler and more unsettled for a few days. The third heatwave of the year resulted from a heat dome over the UK and was more widespread, with four consecutive days over 30ºC (Ross-on-Wye 32.0º 10th, Astwood Bank [Worcs.] 34.7º 11th, 33.1 Cardiff Bute Park [32.2 Aviemore] 12th, 31.2 Achnagart [Highland] 13th). Fresher air swept in from the west on the 15th but it remained hot in the far south and east. It was briefly hot again the next week (31.1ºC Santon Downham 18th) ahead of some heavy thundery rain. The rest of the month was rather unsettled, less hot and with more rain and showers. Rainfall was below average, but it was particularly dry in Wales. It was sunnier than average everywhere apart from Northern Ireland. The lowest temperature was 1.1ºC at Altnaharra on the 8th. 91.8 mm of rain fell at Honister Pass (Cumbria) on the 4-5th.

August. Overall an unsettled but warm month. In terms of CET, at 17.7 it was the hottest since 2022, and then have to go back to 2023 for another hotter one. After an unsettled start to the month, Storm Floris brought unseasonably strong winds and severe gales to the north and west, with some heavy rain, on the 4th. Gales at this time of year are often more problematic because trees are in leaf. The highest gust was 82 mph at Wick Airport (in Caithness). Then the fourth heatwave of the year arrives midmonth. 31.9ºC on Monday 11th (Heathrow), 33.9 on 12th (Westonzoyland, Somerset, the highest temperature of the month), 33.2 (Topcliffe, Yorks.). It didn't quite exceed 30ºC anywhere in the UK on the 14th, but there were some severe thunderstorms in NE and E Scotland. There was flooding in Dundee centre with hail the size of pound coins. At home nearby I saw no lightning and just 2.0 mm of rain. It then exceeded 30ºC again (30.4ºC Andrewsfield, Essex) on the 15th. The late Bank Holiday Monday (except for Scotland) on the 25th was hot and sunny across most of the country (29.6º Hawarden, a new Welsh record for the Bank Holiday, 29.3ºC Ross-on-Wye, 24.5º at Magilligan, a new record for Northern Ireland). There was an unsettled end to the month. All of the UK saw temperatures above average. Overall it was a mostly a dry month, with 62% of the average UK rainfall; it was less dry in Scotland (83%) but drier in the south (43%). Much of the rain in the south fell in the final week. It was a sunny month, with 112% of the average, with it being particuarly sunny in the first two weeks. The lowest temperature of the month was 1.2 at Tomintoul (Banffshire) on the 23rd. The wettest recording day was the 27-28th, with 81.6 mm at Resolvan Works in West Glamorgan.

September. In a change to recent months September 2025 was cooler and wetter than average. The areas of high pressure that had dominated the year so far slipped away allowing anticyclones to cross the country. It was an unsettled first three weeks, when it was particularly wet in the west. It reached 27.8ªC at St. James's Park on the 19th, the highest temperature of the month. It then became more settled, before the north saw more rain at the end of the month. It was at times windy and thunder, and there were some low night temperatures in the final week. The UK overall had 132% of the average rainfall, with many areas reaching the monthly average total by the middle of the month. It was particularly wet in the Lake District, with Cumbria recording 198% of the average for September (making it the fourth wettest on record). The highest rainfall reading was 87.8 mm at Achnagart (Ross & Cromarty on the recording day ending on the 12th. The UK as a whole was 0.1ºC below average (12.8), with warm and cool spells tending to cancel each other out. However in northern Scotland it was sunnier, warmer, and drier than average. The lowest temperature of the month was -5.0 at Tomintoul (Banffshire) on the 29th. The UK as a whole was quite sunny (110%), particularly over England and Scotland. The strongest gust of wind was 78 mph at the Needles on the Isle of Wight.

October. A dull month. October 2025 had an unsettled start. Storm Amy brings widespread disruption, particularly to the north, on the 3-4th. It sets a new October low pressure record on land of 947.9 hectopascals at Baltasound,on the isle of Unst, Shetland (the northernmost inhabited island in Britain, and there was a gust of 96 mph at Tiree (Inner Hebrides). It was followed  by a few weeks with an area of high pressure settled over the UK, bringing 'anticyclonic gloom' to much of the country. The end of the month was unsettled. The 19th and 22nd were wet days in many areas. Overall it was quite a mild month, but not exceptionally so. Rainfall was close to average across the UK, at 99%, although Northern Ireland was very wet, while parts of England were dry: Northamptonshire had only 60% of the long-term average rainfall. It was a dull month, with a UK average of 63.3 hours (69%); it was the third dullest on record, behind 1960 and 1968, and Norhern Ireland was particularly dull (41%). The highest temperature of the month wa 22.3ºC at Lossiemouth (Moray) on the 6th and the lowest -4.0 at Tomintoul (Banff.) on the 18th. 104 mm of rain fell at Seathwaite (Cumbria) on the recording day ending on the 4th.

November. The first half of the month was exceptionally mild, particuarly in the south. Bonfire Night was the warmest on record, with a minimum as high as 14.4ºC at Teddington (London) and 14.8 at Chivenor (Devon) on the 5th. There was some very heavy rain in the South and Midlands on the 13-14th, leading to flooding, especially in Monmouth. The rain marked the boundary between very warm and very cold air, and midmonth the cold air won; it then eventually turned much colder everywhere. There was snow in the north, particularly the North York Moors, and along the east coast, and, as a result of the 'Pembrokshire Dangler', the west of Wales and the north coasts of Devon and Cornwall. The temperature fell to -12.6C at Tomintoul in Moray on the night of the 20-21st, the lowest November temperature in the UK since 2010 (and the lowest of this month). The month ended with wet, mild westerlies. Overall the month was therefore pretty average, being slightly warmer than the long-term means. It was wet (131% average), and partiuclarly wet in the Midlands and East: Lincolnshire recevied 212% of the 1991-2020 average, making it perhaps the wettest November in this revion since readings began in 1836. Sunshine was about average, apart from Northern Scotland. The highest temperature of the month was 18.9C at Thornes Park (West Yorkshire) on the 5th. 150.4 mm of rain fell at Honister Pass in  Cumbria on the recording day ending on the 4th. The strongest gust of wind was 83 mph at South Uist on the 28th.

December.