These may be strange weather patterns in other parts, but on the west coast of BC, we always have drought conditions from July to September. It's always lush and green otherwise.
We mow from March 1st to October 31st. or about thirty five weeks of the year.
I am grateful that most of my customers have irrigation systems. We have only had watering restrictions a couple of times that I can remember.
We would never mow a lawn that didn't require mowing and we would never charge for a mow we didn't do. We do however make the call. Not the customer.