No, you need to enter a range, you might want to enter a range that will
cater to future needs (making it larger than at present necessary)

=SUMPRODUCT(--(MONTH(Range1)=1),--(ISNUMBER(Range1)),--(Range2="London"))

Regards,

Peo Sjoblom

"John" wrote:

I have a list of days for the year 2005 in Col A. In Col B opposite each day
in 2005 (Col A) I have the location I have visited. Is it possible to add up
the number of times I was say in London, for the month of January, without
having to enter a specific sumproduct range in the formula?

Thanks