Easy number overlay for date

I'm making a farming mod that involves seasons and dates, it works sort of like Stardew valley if you've played it. So, I have a season variable, and a day variable. I'm making an overlay to show the date down in the left corner, but what I'm wondering if there's an easier way then having 30 procedures for whether or not the number display will be shown. What I currently have is a bunch of textures for the season display, and the date display. I have season procedures that check if the season variable is say.. Fall, and then shows the fall display, but is there an easier way for the 30 different date displays?