On column A I have dates, and on column B I have money ammounts.

From C1 through C12 I have the months of the year, January, February, March,
etc.

On D1 I want to add all the amounts from column B that represent the month
of January. On D2 I want to add all the amounts from column B that represent
the month of February, etc.

Is this posible with a SUMIF??