Question: What frequently blankets San Diego in May and June?

Is Frequently, particularly during the "May gray/June gloom" period, a thick "marine layer" cloud cover will keep the air cool and damp within a few miles of the coast, but will yield to bright cloudless sunshine approximately 510 miles (8.016.1 km) inland. a good answer to this question?

OPTIONS:
-yes.
-no.
yes