One interesting aspect of lightning strikes is that they tend to occur in liquid precipitation in temperatures within about 5 degrees of freezing. This explains why they are more common in the UK and Northern Europe, than in the States and the Tropics.
I hardly recall seeing lightning in the North Sea yet know of several cases of strikes on all types, and have seen the results. In Nigeria I have seen the most spectacular lightning imagineable both in daytime and at night (and heard it in the cockpit; not pleasant!) yet have not heard of any lightning strikes to helicopters to us or any operator in all the time rotary operations have existed here.