A "snake person" I am not! But I have learned to accept their presence and understand that in many ways they are "a gardener's friend".
Most of the snakes I've seen here are Garter Snakes. You can see how we "rescued" one last winter here and here, but the first one I saw this year is this one. I have identified it as an Eastern Milk snake (but if anyone has any other suggestions, please tell me).
I didn't measure it, but my guess is that he was about 75 cm long and slender. He didn't move around much, probably because it was too cold still - although the sun was out.