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Friday, 2 February 2018

Weather log January 2018

January 2018 LLanwnnen, Ceredigion, Wales

Wed 3rd storm Elinor wind damage locally max gusts Capel Curig 76mph, Pembrey 75mph, Coleshill 61mph (CL 54mph, Llanwnnen 46mph). Thunder and hail squall affected central MIdlands in early hours, Coventry residents awoken by hail bashing the windows and loud thunder

Mild unsettled start to the year colder by first weekend:

Sun 7th rare sunny day, 6 or 7 hrs widely, cold though (Aberporth 7.1 hrs, Llanwnnen 7 hrs est, Coventry 6.7 hrs)

Thu 18th the storm with no name or was it Ffion, David, Friederike or Georgina? Some damaging winds (Capel Curig 93mph, Little Rissington 67mph and selected Aberporth 74mph,  Coleshill 62mph, Coventry 58mph, CL 56mph, Trawsgoed 53mph, Llanwnnen 48mph)

Sat 20th recent rather cold spell; wide temp variation today with mild incursion into SW Wales, cold with some sleet and snow N Wales and Midlands (max Coventry, Bablake 1.8c, Coleshill 2.1c, Capel Curig 2.5c, Mumbles 11.2c)

Sun 21st swansong of the colder snap with temporary wet snow for much of the Midlands (local accumulations of several cms) before the milder air arrived; a wet mild day for WW with flooding in many areas (Gogerddan 46.4mm wettest in UK, Llanwnnen 36.7mm 24 hours to midnight, Hereford 18.6mm)

Tue 23rd very mild especially Midlands (Hereford & Wellesbourne 13.6c, Trawsgoed 11.8c, CL & Nottingham 12.8c, Mumbles 9.8c)

Wed 24th very mild during night into morning, 13c exceeded around dawn much of Midlands (day max Shobdon 13.5c, Trawsgoed 11.8c, Capel Curig 8.4c)

Thu 25th heavy showers with hail and thunder WW in particular, inc here at Llanwnnen (TL and hail 1130-1200 and possibly 1245 -1300..

Sun 28th very mild, exceptionally mild parts of Midlands (Pershore 14.8c, Trawsgoed 12.2c, Mumbles 9.3c)

Monthly summary

Rather mild and rather wet/ wet; sunshine average or rather above

Rainfall totals

Valley 85.6mm (113%)
Capel Curig 318.4mm = wettest place in UK
Aberdaron 92.6mm
Trawsgoed 155.7mm
Llangeitho PWS 176.5mm
Aberporth 117.2mm
Abermeurig, Talsarn PWS 133.6mm
Llanwnnen 178.7mm (124%)
Pembrey 132.6mm (123%)
Llanelli PWS 119.6mm
Mumbles 143.4mm (150%)
MH 134.4mm

Nottingham 73.4mm
Alvechurch PWS 86.2mm (127%)
Harborne PWS 77.2mm
Coleshill 68.1mm
Coventry, Bablake School 66.4mm (111%)
Long Lawford 60.5mm (112%)
Church Lawford 62.4mm (111%)
Dunchurch PWS 56.9mm
Crick PWS 54.4mm
Radford Semele PWS 80.5mm
Pershore 65.8mm
Hereford 75.4mm
Shawbury 65.8mm (117%)


Valley 59.5 hrs
Aberdaron 70.6 hrs
Aberporth 52.5 hrs
Llanwnnen 52 hours (118%)

Nottingham 49.7 hrs
Coventry, Bablake School 67.3 hrs (106%)
Shawbury 55.6 hrs (110%)
Shobdon 57.8 hrs

Nature notes:

Fri 5th Great Tit "teacher" call quite determinedly.

First week, quite a bit of fresh hedgerow foliage inc Primrose, Celandine, Foxglove (lasted from Autumn?).
Daff spikes emerged usual spot end of Bro Grannell, Llanwnnen; Bluebell spikes in garden

Mid month few Snowdrop in flower; first Daffs as usual just before Carmarthen; tits active (notice this and tends to mean no more real cold and Spring on the way); quite a bit of resh groth inc ferns and budding; first sole Celandine flower

Late month plentiful Snowdrop bloom; Blackbird snatches and some proper Song Thrush song; plentiful Hazel catkins, some since beginning of month. MIstle Thrush heard occasionally much of the month.

Thursday, 7 December 2017

November 2017 weather log

Weather log November 2017

Sat 4th rain at times (Gogerddan 26.8mm, Winterbourne 15.4mm)

Sun 5th generally the coolest day so far this Autumn, at Llanwnnen max 9.2c coolest since March 21st (8.2c), showers wintry over some Welsh hills (max Shawbury 9.7c, Capel Curig 8.4c,  Tirabad 9.2c, Pershore & Shobdon 10.6c)

Tue 7th Whitechurch, Pembs 26.4mm wettest in UK

Sun 12th and Mon 13th both cool days sub 10c max. Wintry showers for highest hills of Wales 12th. Frosty 13th (Llanwnnen -4.0c, Tirabad -3.5c, Trawsgoed -3.4c, Pershore -2.7c, Aberporth 5.6c), low tempd Midlands by day (CL max 5.8c, Capel Curig 6.7c, Mumbles 10.7c)

Wed 15th Gogerddan wettest in UK 16.4mm (Trawsgoed 11mm),  Midlands & N Wales mostly dry day

Sat 18th Trawsgoed wettest in UK 22.6mm (Aberporth 21mm, cf Llanwnnen 12.3mm)

Tue 21st/ Wed 22nd very mild with rain at times, copious orographic rain Wales, radar suggests over 250mm  Snowdonia 22nd (Capel Curig 83.6mm 24 hrs to 2100). Minima 22nd Mumbles 13.1c, Shawbury 13.0c, Nottingham 10.9c. Maxima 22nd Shawbury 16.2c, Trawsgoed 15.2c, Aberdaron 13.0c.

Sat 25th wintry showers in places, Coventry and Rugby had flurries, several cm coverings hill of Wales and Peak District, rather cold day (Nottingham max 4.6c, Capel Curig 5.2c, Pershore College 7.4c, Mumbles 8.3c)

Mon 27th Capel Curig 40mm, Trawsgoed 34mm 24 hrs to 1800

Tue 28th local flooding WW, 40mm in two dsays Llanwnnen, Teifi in spate, 2/3 Co-op car park inundated..Quite a cold day.. with wintry showers for Pembrokeshire

Thu 30th Pershore -6.0c, Tirabad -4.3c, MH 3.2c, max CL 2.7c, Capel Curig 3.8c, Llanwnnen 4.8c, Mumbles 6.5c; wi ntry showers 'Pembs Dangler' reports of roads close by snowe around Haverfordwest and Preseli hills late morning

Nature notes

First week: Fresh Honeysuckle leafing in garden, also new leaves on some of the other hedge shrubs.
Campion and the odd Foxglove still to be seen in flower (hardly any frost as yet). Primroses in bloom churchyard.

Pegs Primula, vs other flowers, Chrysanths as usual, Welsh Poppy (yellow). Wasps still quite active, no air frost to date Coventry this Autumn.

Driving back daisy flush and many other flowers out on verges

8th still flowers out inc Dandelion, no frost damage as yet (nothing below -3c so far). Wild Strawberry ripe.

10th plentiful fresh growth, nettles, bramble leafing, even the odd blackthorn leafing, plentiful honesuckle; fresh blooms Campion, Daisy, Dandelion; grass seeding; hazel catkins, some hedgerow budding; hydrangea a few re flowering esp Carmarthen area; few Hawkweed/ Fox and Cubs 'orange beauties' still going; Gorse flower

15th -4c frost yesterday caused damage in valleys while upslopes escaped; hydragea finished Lwn as were orange beauties

November 2017 summary

Much of Midlands rather dry; WW average to rather wet.
Average to quite mild temperatures.
Much of WW rather dull, much of Midlands fairly sunny.

Rainfall totals Nov 2017:

Valley 104.2mm (101%)
Capel Curig 301.2mm (103%)
Trawsgoed c. 215mm
Aberporth 130.2mm (120%)
Abermeurig Bont, Talsarn PWS
Llanwnnen 172.9mm (115%)
Llanelli PWS 70.6mm
MH c. 100mm

Shobdon 40.4mm (63%)
Hereford 35.8mm (56%)
Harborne PWS 52.3mm
Edgbaston PWS 47.5mm
Coleshill 42.2mm (61%)
Longford PWS 39.2mm
Coventry, Bablake School 37.2mm (59%)
Dunchurch PWS 37.3mm
Crick PWS 40.6mm
Daventry PWS c. 32mm

Long Lawford 41.6mm (68%)
Church Lawford 49.4mm (82%)
Pershore c. 45mm


Valley 48.6 hrs (83%)
Aberporth 38.8 hrs (61%)
Llanwnnen 52 hrs estimated (98%)

Shawbury 69.4 hrs (123%)
Shobdon 80.9 hrs
Coventry 85.0 hrs (128%)

Autumn 2017

Temperatures close to average to quite mild; Sept rather cool, October mild, Nov average
Many places rather dry, parts of WW up to average
Generally below average sunshine, especially WW

Rainfall totals Autumn 2017

Llanwnnen 404.0mm (99%)

Coventry, Bablake School 155.8mm (82%)
Church Lawford 143.2mm (75%)
Long Lawford 135.6mm (80%)

Sunshine Autumn 2017:

Llanwnnen 194 hrs (73%)

Coventry, Bablake School 273.6 hrs(89%)

Friday, 3 November 2017

October 2017 weather log

Wed 11th very mild night ( min Pembrey 14.9c, Hereford 14.2c, Capel Curig 12.2c). Wet day WW, large orographic totals particularly Snowdonia (Capel Curig 69mm by day; radar suggesting well over 100mm parts of Snowdonia; Honister, Cumbria 211mm!)

Fri 13th very mild/ warm. Minima Mumbles 15.0c, Shawbury 12.2c, Shobdon 8.3c. Maxima Newport, Salop 20.7c, Shawbury 20.4c, Hereford 19.6c, Trawsgoed 17.2c, Aberdaron 15.0c. Rain for WW (Capel Curig 77mm)

Sat 14th exceptionally mild October night, all locations stayed above 14c (Shawbury 16.8c, Gogerddan & Trawsgoed 16.1c, Aberdaron 14.3c). Warm bright October day Midlands, mild but rather cloudy WW (Hereford 22.1c, Coleshill 21.0c, Trawsgoed 17.9c, Aberdaron 15.1c)

Sun 15th Cat 3 Hurricane Ophelia near Azores ireland bound where likely to cause stormy damaging conditioins tomorrow as an extra Tropical of most northerly recorded (above 35N) and rare to get Cat 3 so close to BI

Mon 16th warmth and wind brought by ex Ophelia although little rain. Incredible surge in warmrth during the morning WW (it had been a warm night above 13c widely). At Llanwnnen in spite of overcast skies and gusty winds the temperature shot up over 4c in two hours attaining 20.8c 0830. At Capel Curig an astounding rise of 7.8c between 0800 - 0900 to 21.6c! Gogerddan managed 22.8c 0800. Damaging winds in places, gusts Capel Curig 90mph, Aberdaron 89mph, Aberporth 74mph, Llanwnnen 57mph, Trawsgoed 53mph. Maxima Gogerddan 22.8c, Trawsgoed 22.3c, Capel Curig 22.3c, Hereford 20.8c, Mumbles 18.3c)

Fri 27th a rare sunny day, 6.5 hours sunniest day since Sept 1st at Llanwnnen (Nottingham 8.7 hrs, Aberporth 7.5 hrs)

Sat 28th widespread ground frost, frost a rarity this month which has been very mild..(air min Shobdon -0.3c, Llanwnnen +0.6c, Pembrey 1.1c, Nottingham 5.9c, Aberdaron & Valley 9.1c). MOst places have had a dry October away from Snowdonia..

Mon 30th widespread frost (Pershore -2.8c, Llanwnnen -2.2c, Tirabad -1.9c). Sunny periods very pleasant day, an estimated 7 hours sun at Llanwnnen being the highest daily total since August 31st (Wellesbourne 7.8 hrs, Aberdaron & Aberporth 6.3 hrs).

Nature notes

Quite a late flourish of hedgerow Campion along with the odd Foxglove to month end. Many other species of flower out too at month end inc Stitchwort. Wild Strawberries in flower with even the odd berry attempting to ripen!
A few Redwing and Fieldfare seen with plenty of the former audible flying over in the evenings.
Aberystywth Starlings back and fantastic murmeration observed 25th, several thousand birds.
Most Ash shed leaves by month end, many Oak still retaining them.

October 2017 summary

Mild/ very mild and dull: dry/ rather dry away from Snowdonia; much of the E Mids very dry.
Rugby area probably the driest Oct since 1978 (7mm BR) with Oct 2017 (16.3mm) slightly drier than Oct 2016 (17.3mm).

Rainfall totals:

Llanwnnen 75.9mm (53%)

Bablake 34.8mm
Long Lawford 16.3mm (29%)
Church Lawford 16.8mm (25%)

Sunshine totals

Llanwnnen 64 hours estimated

Bablake 75.8 hrs

Thursday, 12 October 2017

September 2017 weather log

September 2017 weather log

Fri 1st cool night (Tirabad 1.2c, Capel Curig 3.5c, Shobdon 4.0c)

Sun 3rd cool/ very cool with rain/ drizzle at times WW to W Midlands (Aberdaron 32.4mm with PWS Llyn Peninsular towards 50mm; Shobdon max 13.7c, Capel Curig 13.9c, Nottingham 16.4c, LLanwnnen 17.2c, Whitechurch 17.8c)

Tue 5th Sept warm night (min Pembrey 16.5c, Pershore & Shawbury 16.1c, Mona 13.5c)

Fri 8th showery, thunder in places (as Coventry 1530)

Sat 9th showery, some torrential downpours and scattered thunderstorms, as Coventry afternoon (Swyddfynnon 15.4mm wettest in Wales

Further unsettled and cool weather to mid month, parts of Wales especially wet, Capel Curig 105mm 11th to 13th.

Thu 14th Coventry has had 4 days thunder this month already, equalling the most for September (Steve Jackson) on 8th, 9th 13th and 14th.
Showery past few days, a deep cold pool with plentiful Cb's and thunder and hail locally. A streamer of showers affected Coventry this afternoon with some thunder, Wyken PWS had 8mm in the hour to 1420, Walsgrave just a mile or so east remained largely dry.
Teifi in slight spate today (Coop car park flooded at far end) Cambrian hills have seen copious rain upwards of 100mm past few days.

Fri 15th heavy showers merged into prolonged downpours parts of WW, flooding in places such as Newquay and Talsarn:

26.1mm at Llanwnnen for 14th much of which fell during the night, radar suggesting over 70mm locally, Teifi in spate again (Capel Curig 26mm, Aberporth 25mm)

Sat 16th more downpours and thunder about, Coventry had its fifth day of thunder this month! Parts of WW well over an inch while others escaped mostly dry, another cool one too. Capel Curig            c. 160mm past 6 days and c. 300mm so far this month! (Aberporth 31mm 24 hrs to 1800; Capel Curig max 12.5c, MH 13.8c, Mumbles 16.9c)

Sun 17th very localised ground frost (Llanwnnen air min 2.0c)

Mon 18th localised ground frost ( Swyddfynnon 1.9c,Tirabad 2.0c, Llanwnnen air min 3.3c, grass min -0.1c)

Tue 19th cool night but warmer sunnier day than of late by day for many. At Llanwnnen it was the warmest day for a fortnight as temperatures attained the average (Hereford & Mumbles 18.8c warmest in UK, Capel Curig 14.8c; Watnall 10.6 hrs, Aberdaron 9.9c)

Thu 21st rain fronts crossed from west (Whitechurch 24.2mm wettest in UK)

Fri 22nd fairly widespread rural ground frost Midlands, localised WW, although mild for most coasts (grass min Hereford, Shawbury & Shobdon -1c; air min Shobdon 0.6c, Llanwnnen 1.8c, Coleshill 5.4c, Pembrey 13.1c)

Sun 24th rather warm with some sunshine for a time much of  Midlands, some rain later; cloudy with some rain and drizzle WW and Marches with temperatures nearer average (Pershore College 21.7c, Coleshill & Pershore 21.4c, Trawsgoed 18.4c, Shobdon 17.8c, Aberdaron 15.8c; Shawbury 13.4mm)

Mon 25th heavy rain overnight into morning centrtal and E Midlands, mostly dry elsewhere (Northampton Moulton Park 26.2mm wettest in UK, CL 20.8mm)

September summary:

Dull and wet/ very wet in most places with much of WW very dull; rather cool to average temperatures.

5 days thunder at Bablake Coventry, the hoghest Sept number recorded in 125 years!
0 days thunder Llanwnnen.
Llanwnnen wettest Sept srb 2006 (previous wettest 153.0mm 2010)
Coventry wettest since Sept 2008 (111.4mm).
Coventry dullest Sept since 2008 (110.2 hrs).

Rainfall totals

Valley 84.0mm (117%)
Trawsgoed 177.0mm (177%)
Aberporth 144.8mm (205%)
Talsarn, Abermuerig 148.8mm
Llanwnnen 155.2mm (136%)
Pembrey 137.0mm (176%)
Llanelli PWS 84.6mm
Mumbles c.130mm
Milford Haven 109.8mm

Nottingham 91.8mm
Long Lawford 77.7mm (149%)
Church Lawford 77.0mm (118%)
Dunchurch PWS 66mm
Crick, Northants PWS 51mm
Daventry 74.4mm
Coventry, Longford PWS 100.8mm
Coventry, Wyken PWS 105.9mm
Coventry, Bablake School 83.8mm (141%)
Birmingham, Edgbaston 73.4mm
Birmingham, Harbourne 80mm
Shawbury 113.0mm (198%)
Pershore c. 67mm


Aberporth 90.2 hrs (63%)
Llanwnnen 78 hrs est (63%)

Nottingham 104.6 hrs
Coventry Bablake 113 hrs (82%)
Shawbury 98 hrs (82%)

Saturday, 2 September 2017

August 2017 weather log

Weather log August 2017

Tuesday 1st, showery, locally torrential downpours with thunder, particularly NW Mids as ever some areas escaped dry and bright!

Sat 5th showery, thunderstorms and large hail in place: torrential downpour Aberystwyth morning gave up to 20mm in an hour (radar- Trawsgoed escaped mostly dry); Coventry and Rugby caught two storms one around midday then 1500 which was quite severe over Coventry, Longford PS had 13mm in 15 minutes while Tony observed 25mm hail at Binley. A rather cool day for many, felt pleasant in the sunshine in Lampeter where it was a mostly dry day (Shobdon 19.3c, Llanwnnen & Pembrey 18.9c, Aberdaron 16.0c). Temperatures dropped very low for an August afternoon in the showers, e.g. 11.3c 1500 Market Bosworth

Sun 6th some sun Midlands, mosly cloudy and cool some rain and drizzle WW (Aberdaron max 14.3c, Mumbles 17.7c, Pershore 20.9c)

Tue 8th showery WW, locally torrential and thundery, possibly waterspouts Cardigan Bay (unverified). Cool to average WW. Midlands very cool/ cool and wet in places, some mainly dry. Two inches for parts of Northants & Notts (Notingham 13.3c max, MH 15.2c, Mumbles 19.5c, Porthmadog 20.7c)

Wed 9th further rain for the Midlands, mainly dry, bright WW. 24 hour totals to 0600: Nottingham 36mm, MH 34mm

Thu 10th chilly night (Swyddfynnon 2.6c, Tirabad 3.8c, Trawsgoed 4.4c, Llanwnnen 5.2c, Coton-in-the-Elms 6.1c, Wellesbourne 6.6c, CL 7.0c, Valley 12.6c). Nice day, dry with sunny periods, cool to average (Hereford 22.8c, Mumbles 20.4c; Aberdaron 12.2 hrs)

Sat 19th cool, rather windy with some showers (CC max 15.6c, Valley 18.0c, Shobdon 17.1c, Astwood Bank 19.2c)

Mon 14th Rain at times WW, mostly dry Midlands (Pembrey 25mm, Coventry 21.9c)

Tue 15th heavy showers, local torrential downpours, Trawsgoed 30mm wettest in UK, Shawbury 19mm

Fri 18th showery, thunder and hail in places as Coventry 1300, Rugby 1330

Sun 20th cool damp WW and Marches, nearer average some sun Midlands damp later (Aberdaron 14.7c max, Trawsgoed 16.9c, Shobdon 18.0c, Pershore College 20.8c)

Mon 21st mild to warm night (min Pembrey 15.9c, Shawbury & Hereford 13.7c, CC 9.3c)

Tue 22nd limited sunshine but warmest day for over a month parts of WW such as Llanwnnen (max 24.3c warmest since July 18th 25.9c). Porthmadog 24.9c, Winterbourne 24.1c, MH & Northampton 20.6c; Aberporth 4.4 hrs.

Sat 26th rather warm with sunny periods (Aberporth sunniest in UK 11.8 hrs, Astwood Bank 24.4c)

Sun 27th generally warm to very warm plenty of sun Midlands and S Wales, cloud eventually cleared WW too. Llanwnnen in spite of cloud to 1500 reached 25.2c highest reading of the month (Pershore 25.7c, Trawsgoed 23.2c, Aberdaron 17.5c)

Bank Holiday Mon 28th very warm sunny periods Midlands, rather cloudy cooler WW (Wellesbourne 27.7c, Hereford 26.9c, CL 26.7c, Mumbles 21.3c, Aberdaron 18.1c)

Tue 29th mild night but a much cooler day, equal coolest day of the month Llanwnnen max 15.6c (Swyddfynnon 15.0c, Shawbury 16.6c, Mumbles & Nottingham 18.5c)

Wed 30th very cool and damp East Midlands, sunny spells rather cool to average WW (CL 15.1c, Aberporth 15.8c, Porthmadog 19.5c, Mumbles 18.8c)

Thu 31st cool night close to grass frost locally (air min Llanwnnen & Shobdon 3.3c; grass min Llanwnnen +0.7c, Hereford, Shawbury & Shobdon 1c) but heavy showers too parts of WW (Mumbles 17mm overnight, min 11.6c). Bright day just a few showers and isolated thunder (as near Warwick and Lutterworth). 9.5 hours made it the sunniest day of a dull month at Llanwnnen (Shobdon & Valley 10.1 hrs)

August 2017 summary

Headline: Rather cool and unsettled; mostly dry ending

Rather cool to average temperatures
Dull to average sunshine
Rather dry to rather wet


Valley 58.6mm (84%)
Trawsgoed 115.6mm (113%)
Abermuerig, Ceredigion PWS 84.1mm
Llanwnnen 87.6mm (80%)
Llanelli PWS 61.5mm
Pembrey Sands c. 80mm
MH c. 105mm

Shawbury 61.4mm (103%)
Shobdon 59.6mm (97%)
Bablake 67.2 hrs (107%)
Long Lawford 58.2mm (84%)
Church Lawford 59.0mm (95%)


Valley 175.3 hrs (105%)
Aberporth 142.7 hrs (80%)
Llanwnnen 100 hrs est (61%)

Nottingham 166.4 hrs
Bablake 164.2 hrs (89%)

Summer 2017 summary

Llanwnnen rather wet, dull with near normal temperatures:
Temperature wise no month deviated far from average.
All 3 months disappointingly dull.
June was a wet month, July and August close to average
No dry spell longer than one week.

Rainfall totals:

Valley 268mm
Llanwnnen 311.9mm (112%)
Pembrey 264mm

Shawbury 175mm

Coventry, Bablake 211.4mm (117%)
Long Lawford 170.9mm (96%)
Church Lawford 175.2mm (98%)


Valley 526 hours
Aberporth 480 hrs
Llanwnnen 351 hrs est (70%)

Coventry, Bablake 498.3 hrs (87%)

Nature notes:

Swifts departed end of first week. Still plenty of hirundines month end.

Tuesday, 1 August 2017

July 2017 weather log

July 2017 weather log

Average to rather warm start to the month will just a little rain in places:

Wed 5th generally warm to very warm with sunny spells, cooler cloudier Cardigan Bay coasts (Pershore 28.5c, Llanwnnen 26.7c, Trawsgoed 23.0c, Aberporth 18.1c, Nottingham 22.8c)

Thu 6th warm sunny intervals WW, hot sunny spells Midlands, thunderstorms E Mids evening (Pershore 30.1c, Church Lawford 29.9c, Nottingham 27.6c, Llanwnnen 27.0c, Trawsgoed 23.1c, Aberporth 19.1c)

Sat 8th warm sunny intervals (Hereford 25.4c, Llanwnnen 22.7c, Mumbles 21.1)

Sun 9th rather warm WW, very warm sunny spells Midlands (Wellesbourne 27.7c, Coleshill 26.7c, Llanwnnen 23.7c, Pembrey 20.8c, Shobdon 10.1 hrs)

Mon 10th less warm, rather cool parts of WW, some rain or showers about (Pershore 23.0c, Llanwnnen 19.4c, MH 18.4c, Aberdaron 15.5c)

Tue 11th spells of rain and much cooler, locally an inch of rain

Wed 12th sunny WW coasts, elsewhere sunny spells, average to rather warm (Porthmadog 22.1c, Valley 14.1 hrs)

Thu 13th Coleshill 23.2c

Very warm mid month, thunder in places:

Sun 16th warm night (Coventry & Shawbury 17.3c, Mumbles 16.6c, Mona 13.5c)

Mon 17th warm to very warm sunny periods (Pershore 26.8c, Capel Curig 22.5c, Aberporth 18.2c)

Tue 18th isolated thunderstorms after a warm/ very warm day. Saw a flash late evening here from a storm over Aberystwyth. Lightning visible from Cov and Warks from storm 50 miles away over Luton/ MK (Valley 28.3c, Hereford 27.0c, Aberdaron 22.9c)

Wed 19th thunderstorms in places overnight into the morning, especially Swansea, Llandovery, Coventry. Distant rumblings for an hour Llanwnnen from storm crossing Llandovery 09 -10am. Warm sticky night (min Aberporth 17.8c, Pershore 16.4c, Capel Curig 14.7c). Thunderstorms across mid and north Wales afternoon (Capel Curig 24mm by day)

Unsettled and often cool end to the month:

Thu 20th rain night was heavy over parts of the Midlands (Coventry, Bablake 19.2mm, Wyken PWS 31.2mm, Longford PWS 26mm)

Fri 21st cool and wet much of Wales and Marches, rain to rest of Midlands later (Llanwnnen 41mm in 24 hours to 2100; Capel Curig 43mm, Aberdaron 41mm, Pembrey 33mm; max Aberdaron 14.1c, Llanwnnen 15.1c, Coleshill 20.4c)

Sat 22nd a few thundery showers about especially mid and N Wales afternoon

Sun 23rd localised heavy showers in places, some with hail and thunder, funnel cloud spotted Pembrey, Carms mid afternoon (Sutton Bonington, Notts, 18.6mm wettest in UK)

Tue 25th warm sunny spells, sunny in places, isolated showers and thunderstorms pm especially Glos & Worc, 33mm reported from Gloucester on UKWW (Hereford 26.2c warmest in UK, Llanwnnen 23.3c, MH & Trawsgoed 22.2c, Aberdaron 19.5c)

Fri 28th cool;  wet WW, some rain Midlands, parts of S Midlands stayed mostly dry (Aberdaron max 14.8c, Mona 17.6c, Hereford 19.2c; Capel Curig 22mm by day)

Sun 30th cool and showery WW, nearer average fewer showers Midlands, thunder in places such as mid Wales, Notts (Capel Curig max 15.7c, Hereford 20.3c)

July 2017 summary

Changeable: many areas rather wet/ wet; temperatures generally near average
WW generally rather dull, sunshine nearer average Midlands with Anglesey above average
No heatwaves this month!

Here at Llanwnnen July saw average rainfall and temperaures but sunshine was well below normal

Rainfall totals:

Valley 79.4mm (146%)
Aberdaron 100.4mm (179%)
Llanwnnen 103.0mm (101%) = wettest July since 2010 (155.6mm)
Pembrey 99.4mm (133%)
Mumbles 104.6mm (145%)

Shawbury 68.0mm (128%)
Hereford 72.0mm (160%)
Coleshill 68.6mm (140%)

Long Lawford 64.3mm (113%)
Church Lawford 67.0mm (111%)
Coventry, Bablake School 80.2mm (136%)


Valley 194.9 hrs (111%)
Aberporth 165.2 hrs (87%)
Llanwnnen 123 hrs estimated (69%)

Shawbury 160.4 hrs (97%)

Coventry, Bablake 170.5 hrs (85%)

Saturday, 1 July 2017

Weather log June 2017

Pertinenet daily notes June 2017

Key LL = Long Lawford; CL Church Lawford, Warwickshire; MH Milford Haven, Pembrokeshire

Changeable start to June:

Sat 3rd ground frost parts of Wales (Llanwnnen 1.4c, Swyddfynnon 1.9c) cf quite a mild showery night Midlands (e.g. Coventry min 10.5c)

Sun 4th probable ground frost at Llanwnnen (air min 2.5c) about the only spot as next lowest min Shobdon 4.4c (grass min +1c)

Then a proper unsettled spell:

Mon 5th cool, dull and wet in many places, much of Wales having a very wet day with over an inch widely, and over 100mm for Snowdonia and some other high ground (Capel Curig 49mm 12 hours to 1800), parts of the Midlands having only small amounts though during the day (Nottingham & Pershore 3mm 06-1800). Llanwnnen max 13.9c was cooler than any day in May; other maxima Capel Curig 13.3c, Pembrey Sands 15.0c, Hereford & Pershore 16.0c). The low responsible was centred over Wales by evening, pressure dropping to 988mbar at Llanwnnen lowest since March.

Tue 6th WW had further overnight rain with large totals the north in particular  (Capel Curig 83mm and Whitechurch c. 81mm in 24 hours to 0400). At Llanwnnen 50.5mm fell in 25 hours to 0600, with 40.0mm for the rain day, the wettest since May 14th 2013 and it was the second wettest June day here (42.0mm 6-6-09). Other totals Coventry 27.0mm rain day; 06-0600 totals Mona 50mm, Trawsgoed 46mm, Aberporth 40mm; Long Lawford 14mm 0830-0830. Another cool windy day, although only a few showers WW (Capel Curig 12.3c, Valley 16.3c, Pershore 16.6c)

Turned drier and warmer mid month:

Wed 14th warm generally with sunny periods, especially Midlands (Pershore 25.9c, Shobdon 13.3 hrs)

Then a notable June heatwave:

Sat 17th unbroken sunshine in many areas, warm to very warm WW and a hot June day much of Midlands where widely above 27c, usual cooler exposed exceptions (Pershore 29.2c, Llanwnnen 26.1c, Aberdaron 15.8c)

Sun 18th hot and sunny in many places, very hot in some (Hereford 30.2c, Church Lawford 29.7c, Llanwnnen 28.6c, Aberporth 21.8c)

Mon 19th hot to very hot inland, very warm even for many coasts. Hottest June day on record here at Llanwnnen max 29.7c; other readings Pershore 31.9c, CL 30.8c, Trawsgoed 28.3c, MH 27.7c, Aberdaron & Valley 24.0c)

Tue 20th warm sultry night away for many (min Mumbles 19.4c, Coventry 17.5c, Mona 11.4c). Very warm to very hot; Llanwnnen very sultry max 30.1c, again a new June record and a first 30c plus for the month, with dew points as high as 21.2c. Wales and the Marches seeing the highest readings while a weak cold front brought much lower temps to the NE Midlands (Porthmadog c. 30c, Trawsgoed 28.0c, Pembrey Sands 27.3c, Hereford 28.6c, Nottingham max 18.9c). At midnight temps still at 23c or 24c over much of the Midlands!

Wed 21st culmination of the heatwave, more cloud with hazy sunny spells, very hot and humid widely. Overnight low 16.1c here at Llanwnnen a new record. By day many places very hot and humid, a few thundery showers affected WW. Again the June temperature recored broken max 30.6c at Llanwnnen, while dew point attained 22.4c, second highest to last July (22.5c) Other maxima Wellesbourne 32.2c, Pershore 31.8c, CL 30.0c, Trawsgoed 30.2c, Aberporth 28.7c, MH 24.1c. Heathrow max 34.5c was the highest UK reading in June since 1976.

Thu 22nd another warm night much of Midlands above 16c (CL min 17.2c). Much cooler by day though, by over 10c in places, a few brief thundery showers over the Midlands with thunder heard LL early morning (Pershore 22.1c, Pembrey 20.0c, Aberdaron 16.1c)

Fri 23rd rain affected much of Wales, much of Midlands escaped mostly dry (Gogerddan 18.8mm wettest in UK)

Midlands tending to miss the rain next few days too:

Sat 24th rather warm with sunny intervals Midlands, rather cloudy and near average WW (Wellesbourne 25.0c)

Unsettled and very cool end to month:

Wed 28th cool, overcast and damp (Nottingham max 12.6c, Capel Curig 13.0c, Llanwnnen & Pembrey 16.8c, Pershore 15.3c; Ross-on-Wye 31mm)

Thu 29th notably cool late June day for many areas and in particular WW.  Llanwnnen max 12.7c was the lowest such reading for so advanced into Summer (cf 12.6c 25/06/07 and 13.7c 02/07/12). Other maxima Aberdaron 11.3c, Aberporth 11.7c, Coton-in-the-Elms 13.2c, Wellesbourne 15.4c.

Fri 30th very cool/ cool with some drizzle WW and Marches, nearer average rest of Midlands (Aberdaron max 12.3, Aberporth 12.6c, Mumbles 15.8c, Shawbury 16.0c, Pershore 20.8c; Scolton Country Park, Pembs 26.2mm wettest in UK)

June 2017 summary

Midlands warm with near average rainfall and sunshine

WW generally wet or very wet, quite warm, rather dull, rainfall aberage parts of South Wales

June rainfall totals

Valley 129.8mm (251%)

Capel Curig 251.0mm (180%)

Llanwnnen 121.3mm (178%)

Pembrey Sands c. 85mm
Llanelli 63.2mm
Mumbles 62.2mm (97%)

Shawbury 46.0mm (86%)

Hereford 37.6mm (83%)
Pershore 33.4mm (66%)

Long Lawford 48.7mm (98%)

Church Lawford 50.2mm (90%)
Coventry, Bablake School 64.0mm
Daventry c.38mm
Crick c. 38mm


Valley 155.7 hrs (86%)

Aberporth 171.6 hrs (88%)
Llanwnnen 128 hrs estimated (79%)

Bablake 163.6 hrs