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.: 3.0 (on 23/9)
Highest Min.: 14.7 (on 18/9)
Mean Min.: 8.7
Min. Anomaly: -0.5

Lowest Max.: 11.8 (on 29/9)
Highest Max.: 21.2 (on 2/9)
Mean Max.: 15.5
Max. Anomaly: -1.1

Average Temp.: 12.1
Temp. Anomaly: -0.8

Rainfall (mm):

Total For Month: 58.0 (100.0% of 1981-2010 average)
Wettest Day 13.2 (on 19/9)
Rain Days: 14 (134.6% of 1981-2010 average)
Dry Days: 12
Longest Dry Spell: 4 days (22/9 to 25/9)
Highest Number of Days without a single dry day: 8 days (9/9 to 16/9)

Sunshine Totals (hrs):

Total for month: 114.0 (90.8% of 1981-2010 average)
Sunniest Day: 9.4 (on 23/9)
Sunless Days: 1

Conclusion:

Overall, September was a cooler than average month here, and was certainly nothing like the extension to summer which it has commonly been during a number of other recent years.

Rainfall at this particular station comes out at exactly average in terms of the actual rainfall amounts when we go by the 1981-2010 average, but it was a wetter than average month in terms of the number of official rain days.

It was also a duller than average month overall, although not to the same extent as what we saw during August and there was fewer sunless days during September than what there was during August.

Overall, the month of September did have quite an eventful period within it as the remnants of Hurricane Helene were quickly followed by Storm Ali and then Storm Bronagh. Apart from that though, it was a rather uneventful and boring month overall but a rather poor month where the rainfall amounts didn't really reflect the overall pattern of the month very fairly which deserved a wetter than average in terms of the rainfall amounts instead of what actually ended up happening.

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

Temperature (°C):

Lowest Min.: 2.9 (on 23/9)
Highest Min.: 14.5 (on 18/9)
Mean Min.: 8.3
Min. Anomaly: -1.1

Lowest Max.: 12.5 (on 29/9)
Highest Max.: 21.8 (on 2/9)
Mean Max.: 16.5
Max. Anomaly: -0.5

Average Temp.: 12.2
Temp. Anomaly: -0.8

Rainfall (mm):

Total For Month: 49.4 (77.6% of 1981-2010 average)
Wettest Day 9.8 (on 19/9)
Rain Days: 12 (117.6% of 1981-2010 average)
Dry Days: 12
Longest Dry Spell: 2 days (on 4 separate occasions)
Highest Number of Days without a single dry day: 4 days (9/9 to 12/9 and 18/9 to 21/9)

Sunshine Totals (hrs):

Total for month: 138.1 (107.2% of 1981-2010 average)
Sunniest Day: 10.7 (on 12/9)
Sunless Days: 1

Conclusion:

Here, it was also a cooler than average month. It was also wetter than average in terms of the number of official rain days, but drier than average in terms of the actual rainfall amounts. This means that when you balance everything out, Edinburgh as a whole comes out as being wetter than average in terms of the number of official rain days, but drier than average in terms of the actual rainfall amounts.

Unlike at Edinburgh Gogarbank though, the botanic gardens in Edinburgh were slightly sunnier than average during September. This means that when everything is balanced out, the overall sunshine totals across Edinburgh as a whole, comes out at around average.

We can see from above that the botanic gardens in Edinburgh were sunnier and drier than Edinburgh Gogarbank overall during September. September was largely a westerly dominated and Atlantic driven month which would have resulted in the botanic gardens in Edinburgh being slightly more sheltered from those winds than Edinburgh Gogarbank due to its closer proximity to the east coast.

Furthermore, the relatively close proximity of high pressure to the south weakened most Atlantic weather systems which were coming through. This had the effect of reducing the actual rainfall amounts, although this had much less of an effect on the number of days where it actually rained. When all of that is taken into consideration, the above results are in line with what I would have expected to see under these circumstances.

All near normal, except the second half has been increasingly chilly.

It's surprising how 'near average' rain hides the fact land conditions are still unusually dry with none of the muddy gates and tracks which might be becoming a nuisance by this stage most years.
That's because the rain was in short bursts with ample dry windy days between, rather than any overhang from the 'dry' summer which wasn't particularly dry (or hot) here either.

Average temperature = 11.7°C; diff from climate av: -0.6°C
Average humidity = 81%
Average dewpoint = 8.5°C
Average barometer = 1017.7 mb
Average windspeed = 8.7 mph
Average gustspeed = 12.0 mph
Average direction = 244° (WSW)
Rainfall for month = 57.9 mm (-6.5mm)
Rainfall for year = 513.5 mm (-84mm)
Maximum rain per minute = 0.6 mm on day 21 at time 02:41
Maximum temperature = 23.9°C on day 02 at time 15:27
Minimum temperature = 2.1°C on day 23 at time 04:22
Maximum humidity = 88% on day 28 at time 08:45
Minimum humidity = 40% on day 27 at time 12:41
Maximum dewpoint = 16.7°C on day 17 at time 17:07
Minimum dewpoint = 0.1°C on day 23 at time 4:22
Maximum pressure = 1037.6 mb on day 25 at time 00:28
Minimum pressure = 983.7 mb on day 21 at time 03:06
Maximum windspeed = 35.7 mph from 248°(WSW) on day 19 at time 16:44
Maximum gust speed = 49.5 mph from 248°(WSW) on day 19 at time 16:44
Maximum heat index = 25.3°C on day 02 at time 15:27
Avg daily max temp :15.8°C
Avg daily min temp :7.8°C
Growing degrees days :92.1 GDD
Total windrun = 5542.5miles
-----------------------------------
Daily rain totals
-----------------------------------
01.9 mm on day 3
00.9 mm on day 4
00.2 mm on day 5
05.2 mm on day 6
03.2 mm on day 7
01.3 mm on day 8
01.3 mm on day 11
01.5 mm on day 12
00.4 mm on day 14
00.9 mm on day 15
00.9 mm on day 18
01.3 mm on day 19
24.0 mm on day 20
12.3 mm on day 21
00.9 mm on day 23
00.2 mm on day 27
00.2 mm on day 28
00.4 mm on day 30