a shadow of my former self

A consequence of living in Pennsylvania during February is the endless focus on Octorara Orrie and Punxsatawney Phil----the two competing groundhog prognosticators.  I don't follow these things closely, but it appears as though they saw shadows and we are in for six more weeks of winter.

two thoughts:  

1.  Don't they ALWAYS see their shadows?

2.  Why didn't I see my shadow?