Going to Cemetery - Rosh Chodesh
Is it ok to go to cemetery on Rosh Chodesh ?
To the Questioner,
One should not go to the cemetery on Rosh Chodesh, rather he should go a day or two before or after.
If the Yearly-day (yurtzeit) falls out on Rosh Chodesh, if there is no possibility that visiting the grave site may cause tears, one may go; if there is such a possibility, he should go one or two days before Rosh Chodesh.
Source: Kitzur Yalkut Yosef, Hilchot Aveilut, 40:26.