Advan Foot Traffic Data to a daily frequency dataset

When I want to convert a monthly foot traffic file downloaded from the API to a daily frequency dataset, I use the VISITS_BY_DAY column, which contains values as a string array of the visits per day in the month. I don’t face any problems using it in all the months except for November; here, using any company-store ID, the length of the arrays is 29, while November has 30 days; no matter the year that I’m using, I see this pattern. Is there a reason for this, or maybe I’m missing something?