Weather log November 2024
Key:
WW = West Wales
Mids = Midlands
Lwn = Llanwnnen
AG = Aldermans Green, Coventry
CL = Church LawfordLL = Long Lawford
ROW = Ross-on-Wye, Herefordshire
Nott= Nottingham
CITE = Coton-in-the-Elms, Derbyshire
CC = Capel Curig, Snowdonia
MH = Milford Haven
Carms = Carmarthenshire
Pembs = Pembrokeshire
COL = Climatological Observers Link
PWS = Personal weather station
MO = Met Office
NRW = National Resources Wales
EA = Environment Agency
est = estimated
inc = including
cf = compared with
srb = since records began
CC = Chiffchaff
WW= Willow Warbler
ST = Song Thrush
BB = Blackbird
Anticyclonic start to November making a change for 2024 which has for the most part been unsettled and wet, however a lot of cloud or 'anticyclonic gloom':
Mon 4th everywhere overcast once more except where Derek Brockway showed for N Pembrokeshire where the wind crossing the Preselis broke up the cloud around Fishguard for a time afternoon!
Tue 5th Interesting that the models towards then end of October signalled the prolonged dry spell but showed mild or very maxima (13 - 17c). In reality although nights have been very mild (above 10c at times) days have been average or rather cool. Today Midlands rather cool, WW mild, we were in Aberystwyth where it felt very mild, got home where it had only been a modest max 12.7c whereas Gogerddan (near Aberystwyth) warmest in Wales max 14.4c. Other maxima: Market Bosworth 9.8c, Coleshill & Coventry 10.0c, Shawbury 11.3c, CC 11.9c, Trawsgoed 14.1c.
Wed 6th notably mild night parts of WW, minima widely above 11c; lows MH 13.2c, Valley 13.0c, Lwn 11.3c (early in the evening), CC 11.4c, Shawbury 10.2c, CL 8.0c. Porthmadog max 16.2c warmest in Wales, Lwn 14.6c.
Thu 7th end of the cloudy spell (7 days) here at Llanwnnen with some warm sunny periods (max 15.9c), other parts of west and north Wales saw some sun too, elsewhere another cloudy day (10 successive sun-less days now at Coventry). Other maxima Porthmadog 16.7c, Valley 15.5c, Trawsgoed 15.1c, Aberdaron 13.9c, Wellesbourne 11.7c, Coventry & CL 11.2c, Market Bosworth 10.9c.
Fri 8th longest dry spell of 2024 here at Llanwnnen today being the tenth successive day having no more than a trace of rain. Mild night but cooler by day the high 10.9c at 0700 dropping below 10c from midday.
Sat 9th first day this Season with widespread maxima below 10c (Midlands) whereas most of WW a bit milder just above 10c: Market Bosworth max 6.9c, Coventry 8.0c, ROW 8.5c, Lwn 10.4c, Trawsgoed 10.9c, Porthmadog 12.3c. Continuation of the overcast skies for the Midlands.
Nights remarkably mild thus far in November with all the cloud and mild air masses, to 9th average minima here at Lwn 9.5c which is closer to the daytime average in November.
Sun 10th end of an 11 day dry spell here at Llanwnnen, the last time there was something similarly dry at this time of year was November 2016 when there was a more prolonged dry spell end of the month into December. Some sunny intervals at long last parts of the Midlands, at Coventry an 11 day dull spell was ended.
Towards mid month: still mainly dry, more in the way of sunny spells with some slight frosts and fog in places by night:
Tue 12th Derek Brockway showed Lampeter as being the coldest spot in Wales last night at -2c, my min -1.6c (-2c rounded down) and so he most likely referenced here as he does from time to time.
Wed 13th another frosty night some areas, minima Lwn -2.0c, Swyddffynnon -0.7c (official Wales coldest), CC & Trawsgoed -0.4c, Pershore +1.1c, CITE 1.7c, Aberdaron 6.2c; quite a few places over 6 hours sun today (near unbroken), Coventry 6.8 hrs, Shobdon 6.7 hrs, Nott 6.6 hrs, Lwn 6 hrs est.
First half of November exceptionally dry; mild or very mild and dull/ very dull
Few locations have exceeded 10mm rain thus far with a few barely above 0mm for this one of the wetter months of the year on average. All locations well below average sun and all well above average temperatures.
Rainfall Nov 1st to 0900 16th: Pembrey Sands & Pershore 0.8mm, Aberporth & Coleshill 1.4mm, Coventry & Hereford 1.6mm, Nottingham 1.8mm, CL 2.0mm, Lwn 2.2mm, Capel Curig 2.4mm, Aberdaron 3.6mm, Aberystwyth 4.8mm, MH 5mm (Capel Curig November average being 293mm).
Sunshine 1st to 15th Nov 2024: Aberdaron 13.4 hours, Coventry 14.4 hrs, Nott 18 hrs, Shobdon 18.4 hrs, Lwn c 20 hrs.
Cold snap commenced after mid month:
Mon 18th low system traversing ESE across southern UK into relatively cold air. Initially the warm sector with this gave a very mild evening for SW Wales, here at Llanwnnen the day had been rather cold (max 8c) but rose to 11c during the evening, and 13c Pembrokeshire & S Carms. In contrast maxima just 5c much of the Midlands with snowfalls for N Mids & NE Wales evening but rain elsewhere; maxima MH 13.2c, Pembrey Sands 13.1c, Lwn 11.2c, Trawsgoed 8.9c, ROW 7.3c, Coventry 5.3c, CITE 4.9c, Nott 4.5c.
Tue 19th overnight snowfalls gave 5 inches to Peak District and parts of NE Wales (especially Wrexham area). The warnings even early this morning were not showing snow south of Brum yet late night into the morning it was central and S Mids that bore the brunt of the snow as the trough headed SE; Lickey Hills south of Brum reported as having 10-12cm, 8cm S Brum, 5cm Solihull and 2cm Coventry; much of the Midlands from the Peaks to the Cotswolds & Malverns under snow cover. Greatest depths reported as 17.5cm Peak District and 12cm Watnall (Notts), also it looked a good 6 inches in the Wrexham area on the news. A very cold day for November, here at Lwn max 3.5c made it the coldest day so early in extended 'Winter' and also the coldest in November since the the exceptional cold spell of 2010 (when max -2.2c 28/11/2010); elsewhere Pennerley (Salop) max -0.5c coldest spot in the UK, Libanus (Powys) +0.2c, Nott 1.7c, Shawbury 1.8c, CL & Coventry 2.2c, Wellesbourne 2.6c, CC & Lwn 3.5c, MH 8.6c. Parts of WW also seeing a little sleet or snow as here at Lwn during the morning.
Wed 20th cold frosty night, Lwn min -5.1c, other minima Tirabad -5.4c, Trawsgoed -5.0c, Shobdon -4.2c, Pembrey Sands -3.5c, Nott -3.1c, Coventry -2.1c, Coleshill -1.2c, Aberdaron 3.8c. Further wintry showers today, overnight a 'Cheshire Gap' streamer gave snow showers as far SE as Brum with an inch settling parts of the Black Country. Here at Lwn awoke by loud thunder 0750 then a flash of lightning 0810 followed a couple of seconds by loud thunder again along with heavy hail showers that gave a 1cm accumulation. This was from a shower streamer from the Irish Sea, as it edged west another rumble c 5 miles west 0850 and finally one more distant to SW 0910.
From the forestry this afternoon when it was sunny, the hail covering better preserved up here by the altitude and shade at 1- 2cm depth. Looking NE the higher Cambrians 5 miles or so distant had no whitening (from snow or hail) whatsoever while the area west of Drefach/ Cwrtnewydd looked whitest. This tied in well with the band that the streamer affected this morning being about 10 miles wide between Lampeter and Llandysul with the radar showing that those hills to the east of Lampeter escaped mostly dry while Cwrtnewydd to Synod Inn (west of Llanwnnen) caught the largest totals with rainfall equivalent (judging from radar) about an inch (here at Lwn it was 5mm). The travel report on Radio Wales driving back mentioned that at Prengwyn (Ceredigion) the road was partially blocked still by snow and ice, this village being under the worst of the shower streamer. Also on FB it was apparent that many roads were impassable this morning for example around Synod Inn, New Inn and Pencader, while a bus got stuck at Gwyddgrug on the hill and many cars had slid off roads.
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New Inn road impassable |
Needless, a cold or very cold day (20th) for most, though sunny for the Midlands, maxima generally 4 to 7c (mid November averages 9 to 11c); Libanus in the Brecon Beacons max 0.3c, Shawbury 3.6c, Llanwnnen 3.8c, CL 4.1c, CC 4.5c, Market Bosworth 5.0c, Pershore College 5.4c, Trawsgoed 5.9c, MH 7.5c, Scolton Country Park (Pembs) 7.9c.
Thu 21st a frosty night with a few wintry showers in places; minima Shawbury -6.2c, CC -5.5c, Nott -3.9c, Coventry -3.7c, Trawsgoed -3.6c, Lwn -3.2c, Mona & Pershore College -2.8c, CL -2.6c, Aberporth & MH +1.0c. Widely the day was very cold with a scattering of wintry showers, maxima Libanus +0.3c, Nott 3.1c, CC 3.6c, CL 3.8c, Lwn 4.1c, Pershore 4.8c, MH & Winterbourne 5.1c, Porthmadog 7.3c.
Fri 22nd last day of the rather notable November cold snap: the night less cold here at Lwn as a WNW breeze stirred the air, the minimum was teatime (just below 0c) but from midnight was above 3c with a slight thaw of ice underway. Elsewhere only slight frosts and wintry showers in places. Prolonged and heavy snow showers for NW Mids where a location high up in N Staffs reported 24cm lying, there was a slight covering at Coventry late in the night but this turned to rain and the thaw set in here too. Maxima Nottingham 3.9c, Lwn & Market Bosworth 6.8c, Trawsgoed 7.4c, Pershore 7.7c, MH 8.4c.
Sat 23rd slight overnight frosts. Named storm Bert brought much milder strong SW winds and copious rains over the weekend, large rainfall totals across Wales, over 4 inches by midnight Snowdonia, rain totals CC 79.8mm (2100) wettest place in the UK; totals to midnight: Llanwnnen 46mm, NRW stations Cwm Dyli (Snowdonia) 102mm, Crai Reservoir (Brecon Beacons) 97mm, Corris (near Machynlleth) 88mm, Treherbert (Valleys) 82mm, locally Pencader wettest 67mm.
In the Peak District of Derbyshire a long standing observer considered that 'the cold spell just ended is the most severe to occur wholly within November at this site since Nov 13th-17th 1965.'
Sun 24th 49.3mm measured here at Lwn 0900 making it the wettest November day here srb 2006 (previous 38.8mm Nov 2019), that's 70mm in 36 hours. An exceptionally warm night, here at Llanwnnen the maximum being 14.5c at midnight (it dropped off by dawn to 11c). Brize Norton (Oxon) 17.8c at 0800 the highest reading in the UK, while Coventry peaked at 16.5c first thing this morning (looks like the mildest temperature so late in November for the city).
Winds not so bad here, nothing I reckon above 50mph. Max gusts this weekend Capel Curig 82mph (not out of the ordinary), Pembrey Sands 64mph, Aberdaron 62mph, Aberporth 58 mph, Coleshill 52mph, Trawsgoed 44mph, Coventry 37mph.
Park End in the Forest of Dean has had 77mm in the 24 hours to midday today (24th). Slow moving band of heavy rain from the Cotswolds through Banbury & west Northants all afternoon gave 2 to 3 inches widely in this zone, Preston Capes south of Daventry 75mm today (54mm of this falling between 12 and 1800). The Valleys widely over 5 inches this weekend. Libanus 72mm wettest MO station today, also ROW 42.6mm. Wettest NRW station Tyn y Waun (Treherbert) collected over 170mm during the weekend. Stoke Newington, near Banbury (classified as being in SE England although next to Warwickshire) 70.6mm. Warwickshire was relatively dry in comparison with around an inch for the weekend. Severe flooding affected the Valleys today and there was anger that the warning was only a yellow and not amber/ red. Parts of Northants suffered badly from flooding this evening especially Billing Aquadrome, while the tracks were underwater at Northampton train station.
Santon Downham (Suffolk) reached 18.7c this afternoon which is one of the highest readings so late in the year historically.
Rather cold briefly during the final week but then a very mild ending to Autumn 2024 as well:
Thu 28th widespread frost min Shawbury -4.8c, Lwn & Tirabad -4.2c, Coventry -2.7c, Mist and fog persisted much of the morning parts of Mids suppressing temperatures, maxima ROW 3.5c, Coventry 5.1c, CL 6.7c, Lwn 8.4c, Valley 11.0c.
Fri 29th Porthmadog max 15.5c mildest in UK, in contrast parts of E Mids near average at 9 or 10c (Market Bosworth 10.1c).
Sat 30th mildest finale to November in the 130 year record at Coventry with max 15.5c (previous daily record 14.2c 1924). Other maxima Pershore College 15.9c, Sutton Bonington 14.6c, Gogerddan 15.2c, Nott 13.6c, Aberporth, CC & Lwn 13.5c, Aberdaron 13.0c.
Nature notes
Sat 2nd a few Fieldfare field besides southern forestry, still a few Foxglove flowers.
Mon 4th local walk Blaencwrt and Llysfaen lanes: much fresh growth which must be down to the run of very mild nights rather than sun (nights here above 8c since Oct 30th, no sun at all so far this month): Includes grasses, bracken, Cranesbills in flower, Cow Parsley like plant in flower, new leafage in hedgerows; Roses and Ox Eye Daisy seen in gardens along with various other flowers. At dusk a Bat flew over us along the lane.
Tue 5th Aberystwyth Starlings at pier not in large numbers as yet but several thousand; Redwing audible flying over after dark.
Thu 7th warm sunny periods today brought the garden to life with plenty of insects and small flies and a bit of bird song too. Grannell lane several Cow Parsleys in bloom along with some elder saplings, much fresh growth inc nettles. Bracken dying off.
Quite a few flowers out mid month, leaf fall pronounced past week. First Hazel catkins showing.
Tue 19th few Fieldfare trees end of gardens; on a cold frosty evening noticed one small Fox & Cubs still in flower in the front garden (not seen this late but the frost will finish it).
Wed 20th southern forestry, Llanybydder: Fieldfare and Redwing by the lane not in number yet.
Sat 30th rather a large Wasp in the house today did n't have the heart to let it out so gave it some honey, although it soon died.
November 2024 summary
Average to rather mild temperatures; dull to average sun; rainfall varying between dry and wet
Much of west Wales had below average rain while the Midlands generally near average to wet.
Rainfall totals Nov 2024
Mona, Anglesey 53.2mm (very dry)
Capel Curig, Snowdonia 192.8mm (dry)
Aberdaron, Llyn Peninsular 63.6mm (dry)
Trawsgoed, Ceredigion 111.8mm (rather dry)
Aberporth, near Llangrannog c 89mm (rather dry)
Llanwnnen 139.4mm (89%)
Pembrey Sands, Carms 84mm (dry)
Milford Haven, Pembs 110.6mm (rather dry)
Watnall (Notts) c 58mm (average)
Shawbury c 77mm (rather wet)
Coleshill c 58mm (rather dry)
Coventry, Bablake School 76.7mm (123%)
CL, Warks 72mm (120%)
Pershore, Worc 69mm (rather wet)
Hereford 92mm (rather wet)
King's Newnham EA gauge (near Rugby) 60.6mm
National Resources Wales (NRW) rain gauges Nov 2024
Llyn Cefni, Ynys Mon 62mm (dry)
Bethesda Quarry (Gwynedd) 134mm (dry)
Cwm Dyli (Snowdonia) 250mm (rather dry)
Abersoch (Llyn Peninsular) 82mm (rather dry)
Corris (near Machynlleth) 242mm (average)
Bow Street (near Aberystwyth) 85mm (rather dry)
Pontrhydfendigaid (near Tregaron, Ceredigion) 115mm (rather dry)
Rhos Ymryson (near Gorscoch and 5 miles NW of Lwn) 152mm (average)
Cellan (2 miles NE of Lampeter) 112mm (rather dry)
Pencader (Carms) 181mm (average)
Abergorllech (Brechfa Forest, Carms) 147mm (rather dry)
Rhydargaeau (Carms) 159mm (rather dry)
Garnswllt (near Ammanford, Carms) 107mm (rather dry)
Felinfoel (near Llanelli, Carms) 89mm (rather dry)
Southgate, Gower 83mm (rather dry)
Ferwig (near Cardigan) note appears out of action late Nov
Maenclochog (near Preselis, Pembs) 163mm (average)
Tenby (Pembs) 133mm (average)
Bolton Hill (near Haverfordwest, Pembs) appears faulty
COL stations rainfall
Llansadwrn 72.3mm (54%)
Ludlow, Salop 114.1mm 149%)
Alvechurch, Worc 79.3mm (93%)
Warstock, Brum 69.1mm (88%)
Cosby, Leic 61.3mm (95%)
Hinckley 64.8mm
Towcester, Northants 92.6mm (125%)
Sunshine totals Nov 2024
Aberdaron 33.5 hrs (dull)
Llanwnnen estimated 46 hrs (86%)
Nottingham 55.7 hrs (near average)
Coventry, Bablake School 58.8 hrs (88%)
Shobdon, Herefordshire 51.6 hrs (rather dull)
COL stations sun:
Ludlow 65 hrs
Alvechurch 59 hrs (90%)
Cosby 58 hrs (77%)
Towcester 63 hrs
Autumn 2024
Temperatures around average; rainfall variable from dry to very wet; most places rather dull.
A wet Autumn for the Midlands, very wet indeed Marches; most places in WW rather dry to average but dry for Snowdonia (relatively speaking). Twice the average for Hereford & Shawbury must be rather exceptional.
Rainfall Autumn 2024
Mona 254mm (rather dry)
Capel Curig 506mm (dry)
Trawsgoed 336mm (rather dry)
Aberporth 254mm (rather dry)
Llanwnnen 387.8mm (92%)
Pembrey Sands 331mm (average)
Milford Haven 351mm (average)
Watnall 278mm (wet)
Shawbury 352mm (almost twice the average)
Coleshill 308mm (very wet)
Coventry 304mm (160%)
CL 265.2mm (138%)
Pershore 282mm (very wet)
Hereford 397mm (twice the average)
King's Newnham (EA) 254mm
Autumn 2024 sunshine
Aberdaron 276 hours (average)
Llanwnnen estimated 234 hrs (88%)
Watnall 237 hrs (rather dull)
Shawbury 226 hours (rather dull)
Coventry 257.4 hrs (85%)