September 2023 in Durham – Very Warm

September banner : an apple and a pencil

As so often happens, the weather completely changes in September. The first 10 days in September 2023 averaged 18.5 degC. That would be judged as excellent for a summer month. It was in fact a record breaking heatwave and the highest temperature of the year was recorded during it. This is the first time this has happened since 1962. It was also totally dry until a thundery breakdown on 10th. Some spectacular displays of lightning were seen, although Durham missed the worst of the rain, which resulted in flash flooding in some places. The weather then became much more seasonal until the end of the month and the mean temperature plummeted. The last few days brought Storm Agnes. which was the first named storm of the season. It was however still one of the warmest Septembers on record overall. The month’s highest temperature of 28.6degC was reached on the 9th September, this also being the maximum for the whole 2023 summer. It is unusual for this to happen, but it is not unheard of in Durham. The first 10 days Mean Temp : 18.5 degCMax Temp : 28.6 degCMin Temp : 10.8 degCRainfall : 6.3 mm The rest of the …

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September 2022 Weather in Durham – Wetter than normal

September banner : an apple and a pencil

The Weather at Gilesgate, Durham September 2022 The first days of September 2022 continued in the same vein as the Summer of 2022. The temperature reached 20 degC for the first seven days and for ten of the first thirteen. After that, it cooled slightly, but not markedly so. It still finished as a top 13 September though (reported by Professor Tim Burt below) and looked to be a contender for warmest September early on. Three days had > 10mm of rainfall and overall the total of 90mm was on the high side for September. It was however the first month since May 2022 to receive more than the average monthly rainfall. Overall, a pleasant month. From Trevor Harley September. Overall slightly warmer, wetter, and duller than average, although with wide geographical variations. Generally unsettled, it was quite warm for the first 12 days before becoming cooler, and then cold right at the end. It was relatively dry in NW Scotland and East Anglia, and wet in parts of the SE, east Scotland, and Northern Ireland. Overall rainfall was 111% of average, and sunshine 92%. The highest temperature of the month was 27.7C at Felsham (Suffolk) on the 4th, and …

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September 2021 Weather in Durham

September banner : an apple and a pencil

Apologies for the late posting of September’s report. September 2021 continued the warm summer theme into autumn. There wasn’t exactly an abundance of sunshine, but it had a very pleasant feel to it. As is usual with September, the temperatures don’t really start to drop away until the very end, and this year was no exception. The conditions for September 2021 in Durham (climate averages in brackets) : Mean Max Temp : 19.9 (17.2) degC Mean Min Temp : 12.3 (9.0) degC Mean Temperature : 15.4 (13.1) degC Mean Rainfall : 48.7 (55.4) mm The temperature actually reached 20 degC or more on seventeen days in the month – quite impressive, with a high of 28.6 degC on 8th. The main warm spells were 5th-11th and 16th-26th. As mentioned, the lowest temperatures came right at the end (6.5 degC on 30th), spoiling the mean a bit, although the countrywide figures show September 2021 as being in the top 10 warmest Septembers since the CET (Central England Temperature) record began in 1659. It was nearly as warm as August (although August’s figure was poor). Met Office Summary – September 2021 https://www.metoffice.gov.uk/about-us/press-office/news/weather-and-climate/2021/warm-september-marks-start-of-autumn Rainfall was slightly below average, with only two really wet …

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September 1919 – Heatwave then snow

Just after the end of WW1, September 1919 was an unusual month as it went from a late summer heatwave to early winter snowfall in the space of just a few days. A hot southerly flow had allowed temperatures to climb as high as 32.2C at Raunds on the 11th September 1919. However by the 12th, the wind flow switched and came in from the North Sea and maxima temperatures plunged to the teens. The real dramatic change came about a week later on the 18th September, when a low pressure system tracked to the north of Scotland, then deepened as it moved into the North Sea and a vigorous cold front plunged southwards with a notably cold northerly flow behind it. This cold flow brought early snow and frosts, with lying snow reported as far south as Northern England, even on low ground. This is one of the earliest recorded dates of lying snow across low ground in the UK, and the earliest date for low level snow in the 20th Century. The daily Central England Temperature (CET) mean for the 20th September 1919 was just 6.8C. An amazing month of contrast! Latest September Posts

The last 5 Septembers in the UK according to Trevor Harley

2016 An extraordinary month. Overall very warm, with a CET of 14.6, making it the second equal warmest September from 1910. The first five days were unsettled, and then southerly winds brought hot humid air to the south. 29.3C was recorded at Gravesend on the 7th. It was slightly cooler from the 8th to the 12th, and then 34.4C was recorded at Gravesend on Tuesday 13th, a real record breaker, in many ways: it is the hottest day of the year; it is remarkably late (you have to go back to 1926 for one later); it is the first time 90F (32.3) is exceeded in September since 1949; it was the first time since 1962 that the warmest day of the year in Britain was in September; and it was the hottest September day since 1911. There was also some very heavy thunderstorms to the north and west: Prestbury in Cheshire saw 32.4 mm of rain in just one hour; Manchester City’s Champions League clash with Borussia Monchengladbach had to be postponed. There were some high minima that night, with 20.8C recorded at locations in Kent. The next day was warm too, with Marham reaching 31.1C. The second half of …

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September 2020 Weather in Durham

Here’s what happened in September 2020. After a wet day on the 2nd, September weather was quite decent until the 22nd. There was a short heatwave in mid-month when the temperature hit a lovely 26.6 degC. Towards the end of the month the weather turned very Autumnal indeed. Temps plummeted after the deluge on 23rd, and the maximum temperature on 24th was only 10.2 degC. Quite cold for September. In fact I’m told it was one of (bottom 20) the coldest September days since 1900. This cold spell was due to a depression in the Southern North Sea dragging in North to North Easterly winds from the sea on the North side of the storm. Some wild seas were observed in coastal towns such as Seaham. The cold spell dragged down the overall monthly mean, which had been running a degree or so above average until then, and it finished at 13.2 degC, which is almost bang on average. The absolute minimum of 3.9degC was recorded on the morning of the 28th, as winds dropped behind the depression in the cooler northerly influenced airstream. Rainfall The total for the month finished around the long term average, but about half of …

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September 2019 Weather in Durham – Mostly dry, but still wet!

The headline says it all. September 2019 was really dry and quite pleasant for the first three weeks before the rains came back.  Only 8.1mm fell in the first three weeks, as pressure remained high. Remarkable that the total for the month ended up at 81.0mm, making it a ‘wet’ month overall. That just shows how monthly statistics can completely mask what lies within. Temperature was very equable, with no really warm days, but no really cold ones either. The warmest temperature came in a short 3 day spell grouped around 20th, when 21.9 degC was reached. The coldest was the morning of the 8th when temps dropped to 3.5 degC. September’s overall mean temp (mean max+mean min/2) was 12.8 degC, which is slightly below the 1981-2010 mean. This has been rare in recent times.  

September 2018 Weather in Durham – Average temps

A very average September temperature wise, there were some warm days at the start of the month and another on 26th. Rainfall total was slightly above average, mainly due the extremely wet 2 day period of the 20th and 21st. The total for these 2 days was 44.6mm, which contributed more than half of the final total for the month. High pressure then dominated until the end of the month, with some chilly nights in the last 10 days.

The River Wear Floods Again in Durham – September 2012

The very wet Summer of 2012 continued into Autumn. The River Wear burst it’s banks again in Durham. This red car (Ford Ka) became quite famous as it bobbed about in front of the new Radisson Hotel (due to open a couple of months after this photo was taken). A view of the flood from the Passport Office/National Savings Building. The red car can just be seen in the left mid-distance. The Figures There was exceptionally heavy rainfall and flooding towards the end of the month. The rainfall was spread across two days, with 47.4mm recorded on the 24th and 40.8mm on the 25th. The former is the 27th wettest day on record at Durham since 1850 and the latter was the 41st wettest. Looking at 2-day totals, the combined total of 88.2mm is the 5th highest 2-day total since 1850, although well less than the record holder, 10th / 11th September 1976 when a total of 120.1mm was recorded. The heaviest rain fell late on the evening of the 24th when 16mm fell in 3 hours. It was the wettest September since 1976 and the 7th wettest on record. Professor Tim Burt Department of Geography Durham University

River Wear in Durham in flood again, Sepember 2008

The River Wear in Durham in spate again in mid September 2008. The main wear, normally visible about 4ft above the river is almost totally submerged. The river was 6” away from bursting it’s banks. This was the scene in Croxdale in September 2008 as firemen begin the cleanup process after another flooding episode at The Honest Lawyer Hotel. The River Browney burst it’s banks and inundaded the hotel and motel rooms. Further North in Northumberland, there was a disastrous flood in Morpeth on 6th September. The centre of low pressure was slow-moving over Cent England on the 6th. There were continuing heavy falls of rain overnight across N England, with much of England, Wales and S Scotland seeing rainfall. Rainfall on September 5th: Morpeth Cockle Park 80.7mm; Chillingham Barns 76.2; Westgate-in-Weardale 72.6; Stanhope 69.3; Copley 56.5; Whitley Bay 36.5; September 6th; Chillingham Barns 82.1; Westgate-in-Weardale 47.6; Spittal 29.1; Whitley Bay 26.7 Met Office : Heavy Rainfall Early September 2008 The Morpeth flood: 6 September 2008 The North East region, despite its general rain-shadow setting, is no stranger to floods (Archer, 1992) and Morpeth has endured severe flooding often: for example, in 1863, 1876, 1877, 1878, 1881, 1886, 1898, 1900, …

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