While most people will tell you that you can successfully use a spinnerbait
in Spring, Summer, and Fall...

Guess I should not have caught that 8.25 pound bass in a January club
tournament on a spinnerbait a few years ago. It hit a single Colorado blade 1/2
ounce spinnerbait crawled across a big flat point. That often works in water
down to 40 degrees here.
Ronnie

http://fishing.about.com