Given below, are the final statistics for the summer of 2018 for Edinburgh, Gogarbank from all of the data which I have available which are:

Temperature (°C):

Lowest Min.: 5.0 (on 31/8)
Highest Min.: 16.6 (on 8/7)
Mean Min.: 10.3
Min. Anomaly: +0.8

Lowest Max.: 13.0 (on 26/8)
Highest Max.: 28.0 (on 28/6 and 27/7)
Mean Max.: 19.3
Max. Anomaly: +0.8

Average Temp.: 15.2
Temp. Anomaly: +0.8

Rainfall (mm)

Total For Summer: 153.0 (79.1% of 1981-2010 average)
Wettest Day 26.4 (on 20/6)
Rain Days: 26 (81.8% of 1981-2010 average)
Dry Days: 55

Sunshine Totals (hrs)

Total for Summer: 498.5 (105.2% of 1981-2010 average)
Sunniest Day: 16.3 (on 24/6)
Sunless Days: 6

This was a summer of two halves with the June and the first half of July bringing a lot of hot, dry and sunny weather which resulted in an official absolute drought on a couple of occasions. The second half of July was a bit more unsettled, although this wasn't enough to prevent July from being a fairly decent month overall. However, that was then followed by a rather poor August.

Overall, the summer was warmer than average and despite the exceptionally dull August, it was slightly sunnier than average although it was a real struggle in the end to get over that finishing line due to August being so poor. It was also drier than average overall both in terms of the actual rainfall amounts and the number of official rain days. In that regard, all three summer months were drier than average in terms of the actual rainfall amounts with only August being wetter than average in terms of the number of official rain days.

Given below, are the final statistics for the summer of 2018 for the botanic gardens in Edinburgh from all of the data which I have available which are:

Temperature (°C):

Lowest Min.: 6.1 (on 30/8 and 31/8)
Highest Min.: 17.1 (on 8/7)
Mean Min.: 11.8
Min. Anomaly: +0.9

Lowest Max.: 12.9 (on 4/6)
Highest Max.: 26.4 (on 27/7)
Mean Max.: 19.0
Max. Anomaly: +0.6

Average Temp.: 15.2
Temp. Anomaly: +0.6

Rainfall (mm)

Total For Summer: 153.2 (82.1% of 1981-2010 average)
Wettest Day 28.0 (on 20/6)
Rain Days: 29 (100.7% of 1981-2010 average)
Dry Days: 50

Sunshine Totals (hrs)

Total for Summer: 583.2 (116.7% of 1981-2010 average)
Sunniest Day: 15.5 (on 1/7)
Sunless Days: 6

The summer as a whole was slightly wetter but sunnier at the botanic gardens in Edinburgh, than what was at Edinburgh Gogarbank. Both of those stations had a much drier than average summer in terms of the actual rainfall amounts. However, the botanic gardens in Edinburgh actually had a slightly wetter than average summer in terms of the number of official rain days, whereas Edinburgh Gogarbank still had a drier than average summer in that regard as well. That however, was mainly as a result of what happened during August.