Thus the need for a little math. KWH used in a month will indeed convert to AVERAGE amps required on a daily (or hourly) basis. And yeah, you'd have to allow extra for startup amps, but most generators will start a lot more than they will run for extended periods.Thats not a measure of daily needed amperage at all.I assume your electric bill shows KWH usage. With a little math, that should give you a general idea.
It will vary month to month though, so check one where your bill is high.
Just a thought.
Hence the statement "general idea," rather than "exactly."
FWIW... my bill (on a Coop) actually shows daily usage, so I could just pick the highest day in the highest month and get a "pretty close" hourly average.