johncs2016
01 October 2020 10:03:25

Given below, are the final September statistics for Edinburgh, Gogarbank from all of the data which I have available which are:

Temperature (°C):

Lowest Min: -1.7 (on 27/9)
Highest Min: 14.6 (on 14/9)
Mean Min: 8.2
Min. Anomaly: -1.0

Lowest Max: 11.6 (on 24/9)
Highest Max: 21.7 (on 8/9)
Mean Max: 16.6
Max. Anomaly: -0.1

Ave. Temp.: 12.4
Temp. Anomaly: -0.5


Air Frosts: 1 (333.3% of 1981-2010 average)

Rainfall (mm):

Total for Month: 49.2 (84.8% of 1981/2010 average)
Wettest Day: 12.6 (on 30/9)
Rain Days: 8 (76.9% of 1981/2010 average)
Dry Days: 16
Longest Dry Spell: 3 Days (16/9 to 18/9 inclusive)
Highest Number of Days without a single dry day: 5 Days (2/9 to 6/9 inclusive)

Sunshine Totals (hrs):

Total For Month: 105.3 (83.9% of 1981-2010 average)
Sunniest Day: 10.8 (on 17/9)
Sunless Days: 2

Conclusion:

There was some warm weather during the first half of September, but daytime maximum temperatures ended up being no warmer than average. In addition to that, there was some very cold nights during the latter part of that month, and even an exceptionally early air frost which was the first air frost that I have ever seen during September. This meant that in the end, September was a slightly colder than average month, especially with regards to the overnight minimum temperatures.

For a while, it had looked as though September was going to be a wet month overall as it got off to a wet start. However, an exceptionally dry spell of weather then set in from 13 September, which resulted in us experiencing a period of 18 consecutive days without any significant rainfall, even whilst various other parts of the UK had become more unsettled later on. That run of relatively dry days (they weren't all completely dry, but all of those days had only a fraction of 1 mm or less on each of them, with the vast majority of them being completely dry) finally came to an end during the early hours of this morning but in the end, September was a drier than average month overall both in terms of the actual rainfall amounts, and in terms of the number of official rain days, thus ending the run of wetter than average months which we experienced during the summer. September was therefore only our first drier than average month since May.

Overall, September wasn't as exceptionally dull as any of the three summer months which preceded it and despite the rapidly dwindling amounts of available daylight at this time of the year, September was actually sunnier overall than August. However, that still wasn't enough to give us a sunnier than average month and in the end, September ended up being slightly duller than average here which means that we still haven't had a sunnier than average month here since May.


The north of Edinburgh, usually always missing out on snow events which occur not just within the rest of Scotland or the UK, but also within the rest of Edinburgh.
richardabdn
01 October 2020 18:23:12

Very sunny month thanks to me being away for 11 days and getting much less sunshine on holiday than there was here


Sunnier than all the summer months


June: 134.6hrs


July: 160.2hrs


Aug: 130.6hrs


Sept: 167.2hrs


Only five other years since 1880 have seen more sun in September than in the summer months and three of those have been in the 21st Century which says it all about the state of summer these days. The other years were 1906 and 1907 (the two sunniest Septembers on record), 1987, 2004 and 2012.


Looked as though it was going to turn out exceptionally sunny, and rival 2004 with over 180 hours, but the switch to cool, cloudy rubbish on the 22nd put paid to that.


No temperature extremes as usual. Normal monthly high of 22.2C. Low of 4.1C was abysmal when just about everywhere else in Scotland got below 2C with many areas seeing air frost. Mildest minimum since 2016 


Another very dry month following the typical 21st Century washout summer. Just 20.8mm and more than a third of that fell on the last day.


Aberdeen: The only place that misses out on everything


2023 - The Year that's Constantly Worse than a Bad November
redmoons
11 October 2020 12:10:05

Summary for September 2020 in Watford

Temperature (°C):

Minimum 5.6 day 25
Maximum 29.7 day 15
Highest Minimum 16.6 day 15
Lowest Maximum 12.6 day 26
Air frosts 0

Rainfall (mm):

Total for month 19.5
Wettest day 6.0 day 23
High rain rate 10.8 day 03
Rain days 9
Dry days 21

Wind (mph):

Highest Gust 17.4 day 26
Average Speed 0.9
Wind Run 655.6 miles
Gale days 0

Pressure (mb):

Maximum 1025.0 day 16
Minimum 987.2 day 24

https://blog.andrewlalchan.co.uk/watford-weather-in-september/


Andrew,
Watford
ASL 35m
http://weather.andrewlalchan.co.uk 





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