I always work in the rain, and I would never allow customers (no matter how good) to dictate my schedule.
Where I live, it’s very rainy. A few months ago, out of 20 working days in the month, it rained on 13 of them.
You get to a certain point in your business where there is no longer a choice. I’ll be taking on a couple of employees this year, and there’s no way I’d have them stay off because of the weather, paid or unpaid.
The old proverb wisdom hangs true here : “whatever NWH says, you should do the opposite”