On Saturday, the Bulls netted an injury time winner to beat Spennymoor Town 2-1 at Edgar Street.
Then on Boxing Day, more injury time heroics saw Caddis's side come from behind to beat Gloucester City 3-2 on the road.
Announcing Caddis as the winner on X, formerly Twitter, Vanarama said:" It was a Christmas to remember for @HerefordFC with maximum points 💯
"It's now five in a row in all comps! 🔥
"Congratulations, Paul Caddis 👊"
Club chairman Chris Ammonds said: "Huge credit to not just The Boss, but also the rest of his coaching staff and the players too."
Hereford striker Andy Williams was selected to be in the National North League team of the week after scoring a brace at Gloucester.