If anyone else told me they had worked their garden on April first I'd have never believed it, until this year. We are nearly a month ahead of normal conditions with no snow left, ground drying up and buds on the trees. The garden was dry enough to work so I roto tilled part of it to help warm up the soil and might just plant some potatos in a day or so. I normally put a few early ones in the ground the last week of April but even that is pushing it as a late spring frost can destroy the plants once they are out of the ground.
I think I will risk a few although I have no doubt we will see snow again before summer is truly here.
The earliest I can recall working in the field was April 13 in 1973. As the proud driver of a "new to us" 730 Case diesel tractor I could not wait to get out and try it in the field. And that was considered pretty early to be in the field at the time.