I need to be able to count months in a filtered list

I know this wont work but it will give you an idea of what I am trying to do.


=MONTH(SUBTOTAL(3,AL12:AL10000)=5)

Please help!

A1
1 5/1/2017
2 8/15/2017
3 6/15/2017
4 6/15/2017
5 8/15/2017
6 6/15/2017
7 7/30/2017
8 8/15/2017
9 6/15/2017
10 5/2/2017
11 7/30/2017
12 6/15/2017
13 6/15/2017
14 6/15/2017
15 6/15/2017



Desired Output:

After Filter Applied

Jan 12
Feb 22
Mar 33
Apr 45
May 20
Jun 30