I tend to roll hot or cold in streaks, often in the same session, but for different things.
My current PC, a Monk/Wizard;
First ever combat roll: 1
First ever damage die: 1
First saving throw roll: 3
When trying to sneak up to a goblin lair;
Spot checks (base die roll) 19,18,20
Move Silent (base die roll) 2,2,3
Yeah, well, I saw them, but they sure as heck heard me coming!