Make a column value available in a measure

[ebeauchamp]

Hi,
With the following post I was able to add a column to the Dates table, in order to have the number of days in the current month:
https://community.powerbi.com/t5/DAX-Commands-and-Tips/Days-in-Current-Month/m-p/1214980#M19604

Now, I would like to use this value as a variable in another measure. For example, the measure below had the number of days (30 for November) typed in manually: 

RevthisMonth-PRJNRMUsg = [RevthisMonth-MTDNRMUsg]/[Yesterday]*30

I want to replace this 30 by the variable which is now calculated in the Dates table. But don't know how to relate to it, since I can only refer to other measures, not to a specific table column, in that format. 

Thanks for your help!

[ebeauchamp]

Thanks so much, works perfectly with this max function.

[wdx223_Daniel · Accepted solution]

RevthisMonth-PRJNRMUsg = [RevthisMonth-MTDNRMUsg]/[Yesterday]*max(dates[days in month])

@ebeauchamp