Conditional Formatting Dates

[KranerRyan]

I have a list of dates from 01Jan14 thru current. They are already in order, but I would like a way to fill the cells to visually break out the different months. For example, Jan,Mar,May.. blue and Feb,Apr,Jun.. gray. Is there an easier way to do it than make separate conditional formatting for each month?

Thanks!

 

[footoo]

CF formulas :
=MOD(MONTH(A1,2)=1
=MOD(MONTH(A1,2)=0