I was able to observe on 126 nights (35%) when I was in Leek compared with 110 nights (31%) in 2017 and 128 (37%) in 2016. Observing was only possible after midnight on 33 of these nights.
Whether a night is usable for observing obviously depends on that you are trying to observe. Meteor observing requires long clear spells (these are much rarer in Leek than when I used to observe from East Yorkshire or Oxfordshire), while VS observing can make use of short-lived breaks. Observing using binoculars also greatly reduces my “set up” time. VS observing is hindered by moonlight, but much less so than meteor observing.