Is it normal to miss my period same month of the year?

It can be: If you are having a missed period the same month every year, without any other attributable cause (new pregnancy?), then yes it can be normal. Certain factors like stress can cause a missed period, so if the month in question is around a holiday or stressful time, then it could be due to that . If they are normal the rest of the time, it's likely ok. I would still mention it at the next check up.