I have the following code:

..Range("A1:E1").Select
Selection.AutoFill Destination:=Range("A1:E" & MCLastRow), Type:=xlFillDefault

The problem is B1 and E1 have a month and a number respectively. I want the
same month and same number to filldown but it's incrementing like this:

January 1
February 2
March 3
etc.

I want it to fill down like this:

January 1
January 1
January 1

How do I make this happen?