Count based on two columns, skipping blanks

[PrivateVenue]

Alright, so what I've been trying to figure out for an embarrassingly long amount of time is how to count different values based on two columns, skipping blanks.

I've tried a variety of COUNTIF/S and SUMPRODUCT formulas. This is the closest I've come, but it doesn't take into account what is in column L, so it's continuing the count instead of starting over each month. The formula is column P is =IF($O3="","",SUMPRODUCT(--(O$3:O3<>"")))

	L	O	P
3	11/16	Riverfront	1
4	11/16	616 Lofts	2
5	11/16
6	11/16	Alta	3
7	11/16
8	11/16
9	11/16
10	11/16
11	11/16	Rocky Vista	4
12	12/16	616 Lofts	5
13	12/16	Alta	6
14	12/16	Rocky Vista	7
15	1/17	Hyatt	8
16	1/17	RC Condos	9

<tbody>
</tbody>

This is how I would like it to look, the count starts over with each month and skips the blanks.

	L	O	P
3	11/16	Riverfront	1
4	11/16	616 Lofts	2
5	11/16
6	11/16	Alta	3
7	11/16
8	11/16
9	11/16
10	11/16
11	11/16	Rocky Vista	4
12	12/16	616 Lofts	1
13	12/16	Alta	2
14	12/16	Rocky Vista	3
15	1/17	Hyatt	1
16	1/17	RC Condos	2

<tbody>
</tbody>

Any help is greatly appreciated!

 

[Joe4]

Are your entries in column L text or dates?

 

[PrivateVenue]

They're dates.

 

[Joe4]

Enter this formula in P3 and copy down for all rows:

=IF(O3="","",COUNTIFS(L$3:L3,L3,O$3:O3,"<>" & ""))

 

[PrivateVenue]

Thank you, unfortunately, it's counting the blanks.

 

[PrivateVenue]

Wait, I got it to work!!!

Thank you, thank you, thank you!

 

[Joe4]

You are welcome.