How to input discontinuous range in SUMIF function

[mkane]

I'm trying to sum monthly production totals for a number of runs in my production facility and am having some issues summing the series with the ranges being discontinuous. I've found some work arounds but am having struggling applying them to my situation.

More or less, what I am trying to accomplish is something along the lines of the following:

=sumif({U3,U16,U29,U44,...},="January",{{N3,N16,U29,U44,...})

On my spreadheet, each "run production calculator" is 13 rows deep, outputting one row of production totals. So every string of totals is equally spaced by 13 cells...not the most convenient number. I have the month of each run outputed along this row to simplify. See below picture to clarify.

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I can always sum them up manually but who would want to do that..

Any input is appreciated!

 

[StephenCrump]

Welcome to the Forum!

It will be relatively simple to write a formula to pick up every 13th line.

But based on the screenshot you've posted, it looks like you can use the even simpler:

=SUMIF(U3:U999,"January",N3:N999)

adjusting the last line 999 as appropriate?

 

[mkane]

Ah! Of course I try and over complicate it.

Thank you!