Highlights
This is important for you younger guys to remember this item the rest of your life:
Two fields with everything identical (same crop, variety, stage of maturity, soil type, elevation, agle to the sun, low temperature for the same amount of time, etc.), a field with wet soil will have much less frost damage than a field with dry soil.
It is still too early to know how serious the frost damage was over the weekend, but here is sampling of temperatures Saturday morning in Argentina's crop areas: