You could try it this way:

=SUMPRODUCT((A1:A100="May")*(B1:B1000))

This assumes that your months are entered as text values and not as
dates formatted to show only the month.

Hope this helps.

Pete

On May 12, 8:55*am, stretch wrote:
I have a worksheet were I want to count the number of times a number larger
than 0 appears in the second column 'B', but only if the month is 'May' in
the first column 'A'. I seem to have problems using multiple COUNTIF
conditions, the solution is probably easy but its driving me mad!

* * * * A * * * *B
1 * *May * * * 0
2 * *Feb * * * *0
3 * *May * * * 15
4 * *March * *40
5 * *May * * * 50