Summer scores are a bit more difficult for me as I spend time between the UK and Czechia. So I’ll rate both countries. Not completely fair as I wasn’t in either country for a whole month.
UK (Ashford and Heathrow, both in west London)
June - 8/10. Excellent first 3 weeks with lots of warm sunshine. Some claggy mornings and week 4 went downhill.
July - 1/10. Grey, windy, often cool and wet. Vile.
August - 5/10. Poor until mid-month, then a more settled spell with lovely warm sunshine. Let down by the last few days.
Total - 14/30.
Czechia (Nymburk, Central Bohemia)
June - 9/10. A generally beautiful, warm, sunny month. Quite cool evenings and nights, though.
July - 9/10. A couple of days of uncomfortable extreme heat, otherwise plenty of lovely weather with some impressive thunderstorms.
August - 7/10 Plenty of generally warm sunshine and some more severe thunderstorms. A short unsettled cooler spell in week 3, then some days of very hot weather that wasn’t very pleasant. A chilly and very wet last few days, also unpleasant.
Total - 25/30