Ken,

Use a pivot table: Select your data, use Data | Pivot table... then click
through to where you have a blank table. Then drag the year to the row
field, the month to the row field, and the month again to the data field,
and you're done.

HTH,
Bernie
MS Excel MVP


"Ken" wrote in message
...
I have two columns of dates, a year and a month, non sequential, like
this:

1994 Jan
1990 Jan
1993 May
1994 Apr
1994 Jan
1991 Nov

Etc.

I want to be able to count the number of times each month/dat combinations
appears. For example, How many 1994 Jan combinations do I have (2) how
many
1993 May (1) etc.

Is there a way I can do this using countif?