First off, let me be clear--there were several weeks this summer when we had NO rain that I sincerely doubted we'd have a bean harvest. Thank God for rain, just in time.
And in all fairness, "it isn't a crop until it's in the bin". Bean growers in the thumb of Michigan have suffered losses very recently due to 5+ inches of rain all at once.
Some mature earlier (you can tell by the yellowing of the plant). Some are smaller plants than others.
There are a couple more types of beans we didn't photograph. It started dripping when we were taking photos, and we thought we might melt. Not pictured are: black turtle beans, nuñas, and pintos.